Diese Präsentation wurde erfolgreich gemeldet.
Wir verwenden Ihre LinkedIn Profilangaben und Informationen zu Ihren Aktivitäten, um Anzeigen zu personalisieren und Ihnen relevantere Inhalte anzuzeigen. Sie können Ihre Anzeigeneinstellungen jederzeit ändern.
User Description, Radio Network 
Parameters and Cell Design Data for 
Ericsson's GSM Systems 
USER DESCRIPTION 
222/1553-H...
Copyright 
© Copyright Ericsson AB 2009-2010. All rights reserved. 
Disclaimer 
No part of this document may be reproduced...
Contents 
Contents 
1 General Information 1 
1.1 Main Changes in Ericsson GSM System BSS G10B 1 
1.2 Main Changes in Erics...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
3.22 Multiband Operation 195 
...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
6 Index 349 
6.1 Index to Para...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
222/1553-HSC 103 12/16 Uen B |...
General Information 
1 General Information 
1.1 Main Changes in Ericsson GSM System BSS G10B 
This UD is based on the docu...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
New parameters Changed paramet...
General Information 
New parameters Changed parameters Removed parameters 
QRXLEVMINE 
QRXLEVMINU 
RATPRIO 
SDHRAABISTHRWB...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
In addition to the above-menti...
General Information 
Cell 
Underlaid 
Subcell 
Overlaid 
Subcell 
Channel 
group 
. . . Channel 
Channel 
group 
group 
Ch...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
Cell The parameter is valid fo...
General Information 
Command: The parameter is initiated/affected/prin 
ted by this/these MML commands. 
Different types o...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
8 222/1553-HSC 103 12/16 Uen B...
Site Data 
2 Site Data 
2.1 Common Site Data 
The common site data is the same for all cells in a site. 
RSITE 
Type: Stri...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
10 222/1553-HSC 103 12/16 Uen ...
Cell Data 
3 Cell Data 
3.1 Common Data 
3.1.1 BSC Data 
DL 
Type: Numeral 
Range: -12 to 12 
Unit: dB 
Default: 0 
Comman...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
O&M: In some cases it is possi...
Cell Data 
For RBS 2301/2302/2308 the following is valid: 
(1) 
GSM 800 
21 to 33, 35 
(2308 
only): 
dBm, odd values only...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
46 dBm - 31 to 43 
dBm 
- - 
4...
Cell Data 
Unit: - 
Default: - 
Command: RLDEC 
O&M: If the cell is an internal cell, the 
parameter is only allowed to be...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
BSIC 
Type: NCC-BCC 
Range: NC...
Cell Data 
The measured signal levels on the serving cell. 
The measured levels, the BSIC and the BCCH 
frequency of the n...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
Default: - 
Command: RLDEC, RL...
Cell Data 
fl(n) = 890.2 + 0.2*(n–1) in MHz, where 
n (Absolute Radio Frequency Channel 
Number, ARFCN) goes from 1 to 124...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
COMB indicates that the cell 
...
Cell Data 
Comments: Number of reserved access grant 
blocks. 
Number of CCCH blocks reserved 
for the access grant channe...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
AGBLK tells how many of the CC...
Cell Data 
Comments: Multiframes period. Defines period of 
transmission for PAGING REQUEST 
messages to the same paging 
...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
Unit: TDMA frames 
Default: 0 ...
Cell Data 
Type: Identifier 
Range: UL, OL 
Unit: - 
Default: - 
Command: Every command where subcell type need to be 
def...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
2 3-digit MNC 
administered an...
Cell Data 
O&M: In some cases it is possible to set this parameter to a 
non valid value (as described in the comment belo...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
GSM 800 
(2308 
only): 
(1) 
2...
Cell Data 
3.1.5 Channel Group Data 
The channel group data must be given for each defined channel group. A 
channel group...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
Default: - 
Command: RLSTC, RL...
Cell Data 
Comments: Hopping sequence number. 
The hopping BPC is transmitted on a set of 
frequencies included in a Hoppi...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
O&M: If DCHNO is added or remo...
Cell Data 
O&M: - 
Comments: Defines if the channel group frequencies are allowed (YES) 
or not (NO) for Immediate Assignm...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
SDCCH 
Type: Numeral 
Range: 0...
Cell Data 
Up to 32 SDCCH/8 can be specified 
per cell. This number is reduced by 
one if an SDCCH/4 is defined for the 
c...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
Default: NO 
Command: RLCCC, R...
Cell Data 
3.2 Neighbouring Cell Relation Data 
3.2.1 Neighbouring Cell Relation Data 
Note: Within this chapter, only rel...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
Type: String 
Range: EXT, Omit...
Cell Data 
Type: String 
Range: YES, NO 
Unit: - 
Default: NO 
Command: RLNRC, RLNRP 
O&M: - 
Comments: Co-site, which ind...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
LOHYST 
HYSTSEP 
OFFSET 
3.2.3...
Cell Data 
PSSTEMP 
PTIMTEMP 
3.3 Idle Mode Behaviour 
3.3.1 Paging - MSC data 
PAGREP1LA 
Type: Numeral 
Range: 0 to 3 
U...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
Command: DBTSP:TAB=AXEPARS, SE...
Cell Data 
Unit: s 
Default: 4 
Command: MGEPC , MGEPP. 
O&M: - 
Comments: Time supervision for the first paging in 
one l...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
Unit: s 
Default: 7 
Command: ...
Cell Data 
LATAUSED 
Type: Numeral 
Range: 0, 1 
Unit: - 
Default: 0 
Command: MGEPC , MGEPP. 
O&M: - 
Comments: Defines t...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
Default: 2 
Command: DBTSP:TAB...
Cell Data 
3.3.3 Implicit Detach - MSC Data 
BTDM 
Type: Numeral 
Range: 6 to 1530 in steps of 6, OFF 
Unit: min 
Default:...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
Type: Numeral 
Range: 1 to 255...
Cell Data 
109 –110 to –109 
dBm 
(level 1) 
110 less than –110 
dBm 
(level 0) 
In Ericsson's GSM system, the MS power ca...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
O&M: - 
Comments: Maximum tran...
Cell Data 
O&M: - 
Comments: PLMN (NCC) Permitted. 
Defines the allowed NCCs (Network 
Colour Code) on the BCCH carriers 
...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
Type: Identifier 
Range: ON, O...
Cell Data 
CBQ 
Type: Identifier 
Range: HIGH, LOW 
Unit: - 
Default: HIGH 
Command: RLSBC, RLSBP 
O&M: - 
Comments: Cell ...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
Type: Numeral/Identifier 
Rang...
Cell Data 
Type: Numeral 
Range: 1, 2, 4, 7 
Unit: - 
Default: 4 
Command: RLSBC, RLSBP 
O&M: - 
Comments: Maximum retrans...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
O&M: - 
Comments: TX-integer. ...
Cell Data 
3, 8, 14, 50 55 41 
4, 9, 16 76 52 
5, 10, 20 109 58 
6, 11, 25 163 86 
7, 12, 32 217 115 
Example (GSM phase 2...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
YES MSs in the cell should 
ap...
Cell Data 
Defines an offset to encourage or discourage MSs to 
select the cell while it is camping on another cell, that ...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
= 1 for x ≥ 0 
T is the timer,...
Cell Data 
7 infinite. 
(1) 
(1) The setting of this parameter only affects GSM phase 2 MSs. 
PT 
Type: Numeral 
Range: 0 ...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
Unit: - 
Default: GPRS 
Comman...
Cell Data 
3.4 Locating 
3.4.1 Intra-MSC Handover - MSC Data 
Intra-MSC handover is a handover between BSCs within the MSC...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
Comments: Intra-MSC inter-BSC ...
Cell Data 
Unit: Seconds with 1 sec intervals 
Default: 15 
Command: AXE Parameter. 
O&M: - 
Comments: Time supervision in...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
0 no time supervision 
which m...
Cell Data 
HNDBEFOREBANSWM 
Type: Numeral 
Range: 0, 1 
Unit: - 
Default: 1 
Command: AXE Parameter. 
O&M: - 
Comments: Ha...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
1 Incoming inter-MSC 
handover...
Cell Data 
O&M: In order to make the parameter change 
active, it is needed to halt and activate 
all cells in the BSC. 
C...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
3 Cell ranking by the 
Ericsso...
Cell Data 
O&M: - 
Comments: Minimum time between allocation 
attempts when there is a better cell 
condition and when the...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
Unit: - 
Default: 4 
Command: ...
Cell Data 
Type: Numeral 
Range: 1 to 9 
Unit: - 
Default: 6 
Command: RLLFC, RLLFP 
O&M: - 
Comments: Signal strength fil...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
O&M: - 
Comments: Signal stren...
Cell Data 
Unit: SACCH periods (480 ms) 
Default: 10 
Command: RLLFC, RLLFP 
O&M: - 
Comments: Length of quality filter fo...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
Unit: SACCH periods (480 ms) 
...
Cell Data 
O&M: - 
Comments: Maximum number of consecutive 
missing measurements for a serving 
cell or neighbouring cell ...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
Command: RLLOC, RLLOP 
O&M: - ...
Cell Data 
Type: Numeral 
Range: 0 to 150 
Unit: dBm (negative) 
Default: - 
Command: RLLOC, RLLOP 
O&M: - 
Comments: Suff...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
Unit: dBm 
Default: - 
Command...
Cell Data 
Unit: dB 
Default: 3 
Command: RLNRC, RLNRP 
O&M: - 
Comments: Path loss hysteresis when evaluating 
L-cells. 
...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
O&M: - 
Comments: Signal stren...
Cell Data 
Type: Numeral 
Range: 0 to 63 
Unit: dB 
Default: 5 
Command: RLNRC, RLNRP 
O&M: - 
Comments: Signal strength h...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
O&M: - 
Comments: Signal stren...
Cell Data 
Type: Numeral 
Range: 0 to 100 
Unit: Deci transformed GSM quality units 
(dtqu) 
Default: 55 
Command: RAEPC, ...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
Type: Numeral 
Range: 0 to 63 ...
Cell Data 
Type: Numeral 
Range: 0 to 63 
Unit: dB 
Default: 63 
Command: RLLPC, RLLPP 
O&M: - 
Comments: Signal strength ...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
Unit: dB 
Default: 3 
Command:...
Cell Data 
O&M: - 
Comment: Signal strength region for bad quality 
urgency handover for AMR-WB 
connections. 
(1) 
(1) BQ...
User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 
O&M: - 
Comments: Handover pen...
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
2 g ericcson_parameter_description_g10b-libre
Nächste SlideShare
Wird geladen in …5
×

2 g ericcson_parameter_description_g10b-libre

1.603 Aufrufe

Veröffentlicht am

ericsson 2g parameter discription

Veröffentlicht in: Technologie
  • Als Erste(r) kommentieren

2 g ericcson_parameter_description_g10b-libre

  1. 1. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems USER DESCRIPTION 222/1553-HSC 103 12/16 Uen B
  2. 2. Copyright © Copyright Ericsson AB 2009-2010. All rights reserved. Disclaimer No part of this document may be reproduced in any form without the written permission of the copyright owner. The contents of this document are subject to revision without notice due to continued progress in methodology, design, and manufacturing. Ericsson shall have no liability for any error or damage of any kind resulting from the use of this document. Trademark List Ericsson is a trademark owned by Telefonaktiebolaget LM Ericsson. All other product or service names mentioned in this User Description are trademarks of their respective companies. 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  3. 3. Contents Contents 1 General Information 1 1.1 Main Changes in Ericsson GSM System BSS G10B 1 1.2 Main Changes in Ericsson GSM System BSS G10A 2 1.3 Main Changes in Ericsson GSM System BSS 09A 3 1.4 Introduction 3 1.5 CDD Structure 4 1.6 Conventions 5 2 Site Data 9 2.1 Common Site Data 9 3 Cell Data 11 3.1 Common Data 11 3.2 Neighbouring Cell Relation Data 37 3.3 Idle Mode Behaviour 41 3.4 Locating 63 3.5 GPRS/EGPRS Idle Mode Behaviour 104 3.6 GPRS/EGPRS Cell Reselection 106 3.7 Channel Administration/Immediate Assignment on TCH 111 3.8 GPRS/EGPRS Channel Administration 120 3.9 Dynamic MS Power Control 136 3.10 GPRS/EGPRS Dynamic MS Power Control 145 3.11 Dynamic BTS Power Control 146 3.12 Discontinuous Transmission 154 3.13 Frequency Hopping 155 3.14 Intra Cell Handover 162 3.15 Assignment to Other Cell 168 3.16 Overlaid/Underlaid Subcells / Subcell Load Distribution / Tight BCCH Frequency Reuse 170 3.17 Hierarchical Cell Structures 177 3.18 Extended Range 185 3.19 Double BA Lists 187 3.20 Idle Channel Measurements 189 3.21 Cell Load Sharing 192 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  4. 4. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 3.22 Multiband Operation 195 3.23 Differential Channel Allocation 200 3.24 Enhanced Multi-Level Precedence and Preemption Service (eMLPP) 211 3.25 Adaptive Configuration of Logical Channels 218 3.26 GSM - UMTS - LTE Cell Reselection and Handover 221 3.27 Adaptive Multi Rate 241 3.28 EGPRS Link Quality Control 245 3.29 GPRS Link Adaptation 249 3.30 GPRS/EGPRS Quality of Service 250 3.31 Interference Rejection Combining 259 3.32 Multi Band Cell 259 3.33 GPRS/EGPRS Connection Control and Transfer 262 3.34 Antenna Hopping 269 3.35 Synchronized Radio Networks 269 3.36 Channel Allocation Optimization 271 3.37 Dual Transfer Mode (DTM) 283 3.38 Flexible Abis (FLAB) 285 3.39 Voice Group Call Service 288 3.40 Tandem Free Operation (TFO) 291 3.41 Handover and Signalling Robustness 293 3.42 Find Faulty Antenna Features 294 3.43 Abis over IP 295 3.44 Abis Optimization 307 3.45 PGW Load Distribution 312 3.46 Reduced Power Consumption in GSM RAN 313 3.47 Adaptive Multi Rate Wide Band 316 3.48 Abis Local Connectivity 321 3.49 BSC Capacity Supervision 322 3.50 A-Interface over IP 322 3.51 Automatic FLP/Automatic IRC Tuning 325 3.52 Multi Operator in BSS 329 4 Hardware Characteristics 331 4.1 Allocation Data for Transceiver Group 331 4.2 BSC Exchange Property Data 338 5 CDD Forms 339 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  5. 5. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 6 Index 349 6.1 Index to Parameters 349 6.2 Index to Commands 368 6.3 Cross-Reference: MML-Command Parameters 378 7 Concepts 385 Glossary 387 Reference List 389 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  6. 6. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  7. 7. General Information 1 General Information 1.1 Main Changes in Ericsson GSM System BSS G10B This UD is based on the document 222/1553–HSC 103 12/15 Uen. The changes between the above document and this document are as follows: Removed information regarding RBS 200. Added commands RFIMI, RFIMC, RFIMP, RFIME, RLBRI, RLBRC, RLBRE, RLBRP, RLMRI, RLMRC, RLMRE, RLMRP, RRAII and RRAIE. Note that to be able to use AMR and AMR-WB together with A-Interface over IP other parameters need to be set, see Section 3.50 on page 322. New, changed and removed parameter due to features: Automatic FLP, A-Interface over IP, Reduced Power Level after Handover. New parameters Changed parameters Removed parameters AFLP BSPWRB CTEI AIRCT BSPWRT TXID BSCAFLP BSCAIRCT BSRPWROFFSETN BSRPWROFFSETP CONFMODE DSCP1 HOMTD IMSIPAT MAXTGCL MBT MCIMALG MPS MSRPWROFFSETN MSRPWROFFSETP NCCPERM (BSC) SET 222/1553-HSC 103 12/16 Uen B | 2010-06-18 1
  8. 8. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems New parameters Changed parameters Removed parameters TIME 1.2 Main Changes in Ericsson GSM System BSS G10A This UD is based on the document 222/1553–HSC 103 12/14 Uen. The changes between the above document and this document are as follows: New, changed and removed parameter due to features: AMR-WB Enhancements, EDGE Evolution - Dual Carrier DL, Multiple CCCH, BTS PS Enhancements, Timeslot Power Savings, GSM-UMTS-LTE Cell Reselection. New parameters Changed parameters Removed parameters AMRWBDHA BTSPSHYST DYNULDLACT CCCH CCCHCMD DCDLACT DHRAABISTHRWB DTHAMRWB EARFCN ETCHTN FDDARFCN HPRIO HPRIOTHR ICMODE LPRIOTHR MEASTHR MINCHBW MINREQTCH PAGBUNDLE PCID PCIDG PCIDP PCIDPS PRIOTHR 2 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  9. 9. General Information New parameters Changed parameters Removed parameters QRXLEVMINE QRXLEVMINU RATPRIO SDHRAABISTHRWB TIMESLOTPS TNBCCH TRES 1.3 Main Changes in Ericsson GSM System BSS 09A New, changed and removed parameter due to features: A-Interface over IP, PS Switched Capacity Locks, Improved Ack/Nack New parameters Changed parameters Removed parameters DSCP AQMRTTCONST FASTRET3GNC2 IPDEVNO GBCAPALARMACT GPRSPRIO GBCAPWARNTHR IAN JBS PCMLAW 1.4 Introduction The present document explains the Cell Design Data (CDD) that must be provided for each cell in an Ericsson GSM system, G10B. This data is loaded in the corresponding BSC by means of a Data Transcript file. When a new Ericsson GSM system is built or when new cells are added or changed in an existing Ericsson GSM system, the cell planner provides the operator with a document for each cell containing data for the insertion of the cell in the radio network. The data from all such documents is then converted into a data transcript tape and loaded into the corresponding BSC. A data transcript media contains not only CDD information but also other data needed for the complete configuration of the BSC and its BTSs. A description of such information is out of the scope of this document. 222/1553-HSC 103 12/16 Uen B | 2010-06-18 3
  10. 10. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems In addition to the above-mentioned BSC cell parameters, some of the radio related MSC parameters and exchange properties are included in this document. These parameters are included in order to present a more complete picture of the parameters that influence the design and evaluation of a radio network. Note: The MSC parameters are only defined for Ericsson Mobile Services Switching Centres. These parameters may have another name or may not exist at all in MSCs manufactured by others than Ericsson. This document gives references to GSM Recommendations. This document provides short descriptions of Ericsson's GSM system G10B parameters. For a full understanding of each of them, it is essential to study the description of each particular feature. Note: The availability of a feature could depend on commercial agreements. Due to this it is possible that certain parameters are not supported by an exchange. The topics where GSM 800, GSM 900, GSM 1800 and GSM 1900 differ are indicated. This document assumes that the reader is acquainted with the channel structure for GSM 800, GSM 900, GSM 1800 and GSM 1900, the TDMA concept and the locating algorithm for Ericsson's GSM systems. 1.5 CDD Structure The parameters in this document are organized according to radio network features. The aim with this structure is to facilitate a more feature oriented cell planning and network optimization. In each radio network feature section, the parameters are grouped into sub-sections defined by the network entity where the parameter is defined. this is described more elaborately in Section 1.4 on page 3. The CDD is also arranged in a structure that corresponds to the subcell structure shown in Figure 1. Therefore some parameters appear in more than one part of the CDD. 4 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  11. 11. General Information Cell Underlaid Subcell Overlaid Subcell Channel group . . . Channel Channel group group Channel group . . . Figure 1 The Subcell Structure Supported by Ericsson's GSM System A subcell is a set of channels that share some specific characteristics. An overlaid subcell serves a smaller part of the area of an underlaid subcell. A cell always has an underlaid (UL) subcell, whereas the overlaid (OL) subcell is optional. A subcell structure exists when there is an overlaid subcell defined. The notation “cell/subcell data” (see Section 1.6 on page 5) is used in order to clarify that these parameters may be defined per subcell. Each subcell is divided into channel groups, which include a subset of the frequencies defined for a cell. A channel group can not be shared between different subcells. Same frequency can be defined in two channel groups within the cell but it must not be used at the same time. 1.6 Conventions In this section, rules and conventions for the parameter section in the CDD document are issued. “The parameter is /valid for/set per/ XXXX” MSC The parameter is valid for all cells in the MSC. BSC The parameter is valid for all cells in the BSC. BSC exchange property The exchange properties are changed by means of a generic command, but they are essentially the same as regular parameters. 222/1553-HSC 103 12/16 Uen B | 2010-06-18 5
  12. 12. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems Cell The parameter is valid for both UL and OL subcell, if there is a subcell structure defined. Cell/Subcell The parameter may be defined individually for UL and OL subcells, in case there is a subcell structure defined. Otherwise, they are defined per cell. Neighbor Cell The parameter need to be defined for internal neighbor cells. External Cells See Section 3.2.3 on page 40. “Name of the parameter”, for example BSPWRB, DCASTATE, MSC NAME If bold: BSC command parameters are written with capital letters and are bold-faced. If plain text: A “state variable” corresponding to a state of a feature in the BSC/Cell, for example ACTIVE/INACTIVE. The state variable is not a parameter and the state variable is changed with a command. If plain text in Italics: This parameter has no corresponding name in the BSC command descriptions and the string has no equivalence/meaning elsewhere in the system. Description items Type: String, Numeral or Identifier. Format in the database Range: The value range of the parameter Unit: For example dB, dBm, ARFCN (Absolute radio Frequency Channel Number), deci hours and so on. Default: This is the BSC default value 6 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  13. 13. General Information Command: The parameter is initiated/affected/prin ted by this/these MML commands. Different types of commands: xxxxI: Initiate. xxxxC: Change. xxxxE: End. xxxxP: Print. O&M: Possible impact of the parameter change to the service state. Comments: Clarifying notes about the parameter. 222/1553-HSC 103 12/16 Uen B | 2010-06-18 7
  14. 14. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 8 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  15. 15. Site Data 2 Site Data 2.1 Common Site Data The common site data is the same for all cells in a site. RSITE Type: String Range: 3 to 15 characters Unit: - Default: - Command: RXMOI, RXMOC RXMSC, RXMOP O&M: - Comments: Radio Site. Identity of the radio site where the transceiver group (TG) is located. 222/1553-HSC 103 12/16 Uen B | 2010-06-18 9
  16. 16. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 10 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  17. 17. Cell Data 3 Cell Data 3.1 Common Data 3.1.1 BSC Data DL Type: Numeral Range: -12 to 12 Unit: dB Default: 0 Command: RRLLC, RRLLP O&M: - Comments: Downlink Line level UL Type: Numeral Range: -12 to 12 Unit: dB Default: 0 Command: RRLLC, RRLLP O&M: - Comments: Uplink Line Level. 3.1.2 Cell Data BSPWRB Type: Numeral Range: 0 to 63 Unit: dBm Default: - Command: RLCPC, RLCPP 222/1553-HSC 103 12/16 Uen B | 2010-06-18 11
  18. 18. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems O&M: In some cases it is possible to set this parameter to a non-valid value (as described in the comment below). Then, the activation of the channel group might not be able to perform correctly. Comments: Base Station output power in dBm for the BCCH RF channel number. The BTS can transmit with different power levels on the frequency that carries the BCCH and on the frequencies that do not carry it. The power is specified at the Power Amplifier (PA) output, that is immediately after the transmitter unit and before the combiner. For RBS 2101/2102/2103/2106/2107/2202/2206/2207/2216 and RBS 6000 DUG/RUG the following is valid: (1) (2) GSM 35 to 47, 49 , 51 dBm, odd values only 800: GSM 900: (1) , 51 35 to 47, 49 (2) dBm, odd values only GSM 1800: (1) , 49 33 to 45, 47 (2) dBm, odd values only GSM 1900: (1) , 49 33 to 45, 47 (2) dBm, odd values only. (3) For RBS 2109 the following is valid: (1) GSM 31 to 43, 45 800: dBm, odd values only GSM 900: (1) 31 to 43, 45 dBm, odd values only GSM 1800 (1) 29 to 41, 43 dBm, odd values only. GSM 1900: (1) 29 to 41, 43 dBm, odd values only. For RBS 2111 the following is valid: GSM 900: (1) , 47 dBm, odd values only 31 to 43, 45 GSM 1800: (1) , 47 dBm, odd values only 31 to 43, 45 For RBS 2309 the following is valid: (1) GSM 25 to 37, 39 900: dBm, odd values only GSM 1800: (1) 25 to 37, 39 dBm, odd values only 12 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  19. 19. Cell Data For RBS 2301/2302/2308 the following is valid: (1) GSM 800 21 to 33, 35 (2308 only): dBm, odd values only GSM 900: (1) 21 to 33, 35 dBm, odd values only GSM 1800: (1) 21 to 33, 35 dBm, odd values only GSM 1900: (1) 21 to 33, 35 dBm, odd values only. For RBS 2401 indoor the following is valid: GSM 7 to 19 dBm, odd values only 900: GSM 1800: 9 to 21 dBm, odd values only GSM 1900: 9 to 21 dBm, odd values only. For RBS 2409 the following is valid: GSM 1800: (4) 11 to 23 dBm, odd values only GSM 1900: (4) 11 to 23 dBm, odd values only For RBS 6000 DUG/RUS, GSM 800/900/1800/1900, the following is valid (both odd and even values): Maximu Number of TRXs in one MCPA: m powe 1 2 3 4 r per MCPA 48 dBm 36 to 48 dBm 33 to 45 dBm 31 to 43 dBm 30 to 42 dBm 222/1553-HSC 103 12/16 Uen B | 2010-06-18 13
  20. 20. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 46 dBm - 31 to 43 dBm - - 43 dBm 31 to 43 dBm - - - (1) Software Power Boost (not applicable for RBS 2401: The feature Software Power Boost is activated by setting BSPWRB to a special value that is 2 dB higher than the maximum possible power at the PA output. TX diversity is used and each TX supporting the master-slave configuration is configured. A BTS with filter combiner does not support Software Power Boost. (2) Transmitter Coherent Combining: The feature Transmitter Coherent Combining (TCC) is activated by setting BSPWRB to a special value that is 4 dB higher than the maximum possible power at the PA output. TCC is applicable to RBS 2106, 2107, 2206, 2207 and 2216 only. (3) For GSM 900 - TRU: KRC 131 47/01, the range is 31 to 43 dBm. If one or more GSM TRU type KRC 131 47/01 is used within one cell the maximum output power for that cell shall be limited to 43 dBm. To ensure that, the parameter MPWR (see Page 336) shall be set to 43 dBm for all TXs on that cell. (4) SWPB and TCC are not applicable CELL Type: String Range: 1 to 7 characters except ALL Unit: - Default: - Command: All commands where a specific cell is pointed out. Cell definition: RLDEI O&M: - Comments: Cell name. It is recommended to use the name of the site plus one more character that identifies the cell within the site. The best choice for this character is a number (1,2,3...) or a letter (A,B,C...) identifying the antenna pointing direction of the cell. The 0 (zero) degrees true north direction can be taken as a reference. The cell whose antenna direction is closest to the reference direction when counting clockwise, should be assigned letter A (or number 1). NEWNAME Type: String Range: 1 to 7 characters except ALL 14 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  21. 21. Cell Data Unit: - Default: - Command: RLDEC O&M: If the cell is an internal cell, the parameter is only allowed to be changed in cell state HALTED. Comments: The parameter is used to change the name of a cell. See parameter CELL, Page 14, for recommendations. CGI Type: MCC-MNC-LAC-CI Range: MCC: 3 digits (Mobile Country Code). MNC: 2 or 3 digits (Mobile Network Code). LAC: 1 to 65535 (Location Area Code). CI: 0 to 65535 (Cell Identity). Unit: - Default: - Command: RLDEC, RLDEP O&M: If the cell is an internal cell, the parameter is only allowed to be changed in cell state HALTED. Comments: CGI (Cell Global Identity) is the global identity of the cell in the whole system. It is composed of four different parameters: MCC Mobile Country Code, MNC Mobile Network Code identifying the PLMN (Public Land Mobile Network, that is the operator), LAC Location Area Code, CI Cell Identity within the location area. CGI is sent to the mobile station (MS) as a part of the system information message (GSM Rec. 04.08). The combination MCC-MNC-LAC is also known as the location area identity (LAI). 222/1553-HSC 103 12/16 Uen B | 2010-06-18 15
  22. 22. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems BSIC Type: NCC-BCC Range: NCC: 0 to 7 (Network Colour Code). BCC: 0 to 7 (Base station Colour Code) Unit: - Default: - Command: RLDEC, RLDEP O&M: If the cell is an internal cell, the parameter is only allowed to be changed in cell state HALTED. Comments: BSIC (Base Station Identity Code) is composed of two entities: NCC Network Colour Code. BCC Base station Colour Code. BSIC is defined on a per cell basis and it is sent on the logical synchronisation channel (SCH) on the BCCH frequency. Reference [3], Annex A, assigns one NCC value "n" to each European country "to ensure that the same NCC is not used in the adjacent PLMNs". A second operator in a given country would use the NCC value "n+4". When an MS reports the results of the measurements made on the serving cell and the neighbouring cells, it indicates (Reference [7], section 10.5.2.20): 16 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  23. 23. Cell Data The measured signal levels on the serving cell. The measured levels, the BSIC and the BCCH frequency of the neighbouring cells. Only measurements from cells with allowed NCC are reported (see parameter NCCPERM, Page 50). The colour code NCC is then used to discriminate cells that use the same frequency. Though mainly intended for the purpose of differentiating PLMNs, it also serves to distinguish cells within one PLMN that use the same frequency provided they have been assigned different NCC. If there are two operators in a country, they can use more than two PLMN colour codes each one, provided that in border areas only the values "n" and "n+4" are used. What is stated here should be considered as general guidelines. Of course any type of NCC assignment must be decided by agreements between operators and countries. Regarding the protection against co-channel interference, the MS reports the BCC value so that the BSC can distinguish among different cells transmitting on the same frequency. For this purpose the BCC must be allocated as wisely as possible. If frequency reuse clusters are used then it is recommended that all BTSs in a given cluster use the same BCC. In this way the reuse distance of a certain BCC can be maximised according to the frequency reuse distance. (1) (1) Only 8 different values (BCC: 0 to 7) are used for the purpose of recognizing co-channel interference. BCCHNO Type: Numeral Range: 128 to 251 (GSM 800). 1 to 124 (GSM 900, P-band). 0, 975 to 1023 (GSM 900, G1-band). 512 to 885 (GSM 1800). 512 to 810 (GSM 1900) Unit: - 222/1553-HSC 103 12/16 Uen B | 2010-06-18 17
  24. 24. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems Default: - Command: RLDEC, RLDEP O&M: - Comments: Absolute RF channel number for BCCH. Absolute RF channel number already defined for a dedicated channel can not be used. The frequency carrying the BCCH (Broadcast Control Channel) in a cell, is defined by the Absolute Radio Frequency Channel Number, ARFCN, with the parameter BCCHNO. The defined ARFCN must be unique within the cell. According to the GSM 800 recommendations the channels are numbered as follows: fl(n) = 824.2 + 0.2*(n–128) in MHz, where n (Absolute Radio Frequency Channel Number, ARFCN) goes from 128 to 251 and fl is a frequency in the lower band, BTS receiver. fu(n) = fl(n) + 45 in MHz, where n goes from 128 to 251 and fu is a frequency in the upper band, BTS transmitter. According to the GSM 900 recommendations the channels are numbered as follows: 18 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  25. 25. Cell Data fl(n) = 890.2 + 0.2*(n–1) in MHz, where n (Absolute Radio Frequency Channel Number, ARFCN) goes from 1 to 124 and fl is a frequency in the lower band, BTS receiver. fu(n) = fl(n) + 45 in MHz, where n goes from 1 to 124 and fu is a frequency in the upper band, BTS transmitter. According to the GSM 1800 recommendations the channels are numbered as follows: fl(n) = 1710.2 + 0.2*(n–512) in MHz, where n (Absolute Radio Frequency Channel Number, ARFCN) goes from 512 to 885 and fl is a frequency in the lower band, BTS receiver. fu(n) = fl(n) + 95 in MHz, where n goes from 512 to 885 and fu is a frequency in the upper band, BTS transmitter. According to the GSM 1900 recommendations the channels are numbered as follows: fl(n) = 1850.2 + 0.2*(n–512) in MHz, where n (Absolute Radio Frequency Channel Number, ARFCN) goes from 512 to 810 and fl is a frequency in the lower band, BTS receiver. fu(n) = fl(n) + 80 in MHz, where n goes from 512 to 810 and fu is a frequency in the upper band, BTS transmitter. BCCHTYPE Type: Identifier Range: COMB, COMBC, NCOMB Unit: - Default: NCOMB Command: RLDEC, RLDEP O&M: The parameter is only allowed to be changed in cell state HALTED. Comments: Type of BCCH. 222/1553-HSC 103 12/16 Uen B | 2010-06-18 19
  26. 26. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems COMB indicates that the cell has a combined BCCH and SDCCH/4 (see parameter SDCCH, Page 34). COMBC indicates that the cell has a combined BCCH and SDCCH/4 with a CBCH subchannel. NCOMB indicates that the cell does not have any type of combined BCCH and SDCCH/4. The BCCH is always allocated to time slot number 0 (TN0) in the defined ARFCN. The CBCH is used for transmission of the messages when the function Short Messages Service Cell Broadcast (SMSCB) is activated in the cell. SMSCB enables the operator to submit short messages for broadcasting to a specific area within the PLMN. AGBLK Type: Numeral Range: 0 to 7 if non-combined BCCH is used. 0 to 2 if combined BCCH and SDCCH/4 is used Unit: - Default: 1 Command: RLDEC, RLDEP O&M: The parameter is only allowed to be changed in cell state HALTED. 20 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  27. 27. Cell Data Comments: Number of reserved access grant blocks. Number of CCCH blocks reserved for the access grant channel. The remaining CCCH blocks are used for the paging channel. In each downlink non-combined SDCCH 51 frames multiframe there are 9 different CCCH blocks and in the combined BCCH/SDCCH there are 3 different blocks. They can be used to: • Send paging messages, that is used as a Paging Channel. • Send access granted messages, that is used as an Access Grant Channel. After an MS tunes to the BCCH/CCCH channel and decodes the System Information, it performs an evaluation that, taking into account the MS's own IMSI (International Mobile Station Identity) number, determines to which particular CCCH block in the physical channel it should listen (Reference [8]). Every CCCH in the physical channel (Paging Subchannel) sends paging messages to a certain group of MSs that are called its paging group. The reason for the existence of such paging groups is that the MSs can save batteries because it only needs to listen to its own Paging Subchannel messages. The physical channel (Paging Subchannel) sends paging messages to a certain group of MSs. As mentioned before these very same CCCH blocks are also used to send Access Grant messages to the MSs, that is to answer a Random Access message that an MS wanting to access the system has sent to the system, and to send notifications on the NCH. The structure of the BCCH regarding Paging messages and Access Grant messages can be controlled by the two parameters AGBLK and MFRMS. 222/1553-HSC 103 12/16 Uen B | 2010-06-18 21
  28. 28. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems AGBLK tells how many of the CCCH blocks that should be reserved for the Access Grant messages and NCH information. In Ericsson's GSM system, Access Grant messages are given priority over Paging messages. Together with MFRMS, AGBLK indicates how many paging groups there will be. With a non-combined BCCH and AGBLK = 1, there are 8 CCCH blocks in each multiframe. This means that it is possible to have 16 to 72 different Paging Subchannels, that is Paging Groups. (Since MFRMS can take values between 2 and 9.) With a combined BCCH/SDCCH and AGBLK = 1, there are 2 CCCH blocks in each multiframe. In this case it is possible to have 4 to 18 different Paging Groups. (1) (1) AGBLK must not be 0 when SI 7 and 8 have to be sent, when short message service cell broadcast (SMSCB) is in use on a cell not using combined BCCH and SDCCH/4 (GSM05.02) or when Voice Group Call Service is used in the cell. MFRMS Type: Numeral Range: 2 to 9 Unit: CCCH multiframes Default: 6 Command: RLDEC, RLDEP O&M: The parameter is only allowed to be changed in cell state HALTED. 22 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  29. 29. Cell Data Comments: Multiframes period. Defines period of transmission for PAGING REQUEST messages to the same paging subgroup. Together with AGBLK, MFRMS determines the number of paging groups. MFRMS is also used by the MS to determine downlink signalling failure in idle mode (Reference [9]). The downlink signalling failure criterion is based on the downlink signalling failure counter DSC. When the MS camps on a cell, DSC shall be initialised to a value equal to the nearest integer to 90/N where N is the MFRMS parameter for that cell. Thereafter, whenever the MS attempts to decode a message in its paging subchannel; if a message is successfully decoded DSC is increased by 1, (however never beyond the nearest integer to 90/N), otherwise DSC is decreased by 4. When DSC reaches 0, a downlink signalling failure shall be declared. A downlink signalling failure shall result in cell reselection. MFRMS is also used by the MS to control monitoring of received BCCH carrier level (Reference [9]). Whilst in idle mode an MS shall continue to monitor all BCCH carriers as indicated in the BCCH allocation list (BA list). A running average of received level in the preceding 5 to Max{5, ((5*N+6) div 7)*MFRMS/4} seconds shall be maintained for each carrier in the BCCH allocation. N is the number of non-serving cell BCCH carriers in BA. FNOFFSET Type: Numeral Range: 0 to 1325 222/1553-HSC 103 12/16 Uen B | 2010-06-18 23
  30. 30. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems Unit: TDMA frames Default: 0 Command: RLDEC, RLDEP O&M: The parameter is only allowed to be changed in cell state HALTED. Comments: Frame Number Offset. Indicates the time difference from the FN generator in the BTS. To prevent that all cells on a site send BCCH channels at the same time it is possible to define a deviation with respect to the FN generator called FNOFFSET. By using FNOFFSET on a synchronised two or three sector site the time for decoding BSIC can be reduced. (1) (1) The RBS 2000 only support the range 0 to 1023. ECSC Type: Identifier Range: NO, YES Unit: - Default: NO Command: RLSBC, RLSBP. O&M: - Comments: Early Classmark Sending Control. Indicates if an MS in the cell is allowed to use early classmark sending. NO Early sending is not allowed. YES Early sending is allowed. (1) (1) The parameter ECSC has to be set to YES in order to allow the MS to send the MS multiband and/or multislot capability. No multiband or multislot configuration will be established unless the MS capability is known. SCTYPE 24 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  31. 31. Cell Data Type: Identifier Range: UL, OL Unit: - Default: - Command: Every command where subcell type need to be defined. A subcell structure is defined by the command RLDSI. O&M: - Comments: Subcell type. UL The subcell type is underlaid. OL The subcell type is overlaid. A subcell structure can only be defined for an internal cell. 3.1.3 BSC Exchange Property Data MNCDIGITHAND Type: Numeral Range: 0 to 2 Unit: - Default: 0 Command: RAEPC, RAEPP. O&M: - Comments: Indicates how the BSC handles MNC: 0 2-digit MNC administered and sent, all cases. 1 3-digit MNC administered and sent on the A-interface and Gb-interface and 2-digit MNC is sent on the air-interface. 222/1553-HSC 103 12/16 Uen B | 2010-06-18 25
  32. 32. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 2 3-digit MNC administered and sent, all cases. If the value is 1 then the third MNC digit must have the value zero. Changing of the value from 2 to a lower value is only allowed if the third MNC digit is zero in all defined cells. If any cell exists with an MNC with the third digit not equal to zero, then this cell must be undefined before the property value can be changed from 2 to a lower value. 3.1.4 Cell/Subcell Data These parameters may be defined different for underlaid and overlaid subcells. In case there is no subcell structure defined, they are defined per cell. MSTXPWR Type: Numeral Range: 13 to 43 (GSM 800) odd values only. 13 to 43 (GSM 900) odd values only. 4 to 30 (GSM 1800) even values only. 4 to 30 (GSM 1900) even values only Unit: dBm Default: - Command: RLCPC, RLCPP O&M: - Comments: Maximum transmit power for MS on connection. BSPWRT Type: Numeral Range: 0 to 63 Unit: dBm Default: - Command: RLCPC, RLCPP 26 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  33. 33. Cell Data O&M: In some cases it is possible to set this parameter to a non valid value (as described in the comment below). Then, the activation of the channel group might not be able to perform correctly. Comments: Base Station output power in dBm for the non-BCCH RF channel numbers. The power is specified at the Power Amplifier (PA) output, that is immediately after the transmitter unit and before the combiner. For RBS 2101/2102/2103/2106/2107/2202/2206/22 07/2216 and RBS 6000 DUG/RUG the following is valid: (1) (2) GSM 800: 35 to 47, 49 , 51 dBm, odd values only (1) , 51 GSM 900: 35 to 47, 49 (2) dBm, odd values only GSM 1800: (1) , 49 33 to 45, 47 (2) dBm, odd values only GSM 1900: (1) , 49 33 to 45, 47 (2) dBm, odd values only. (3) For RBS 2109 the following is valid: (1) GSM 800: 31 to 43, 45 dBm, odd values only (1) GSM 900: 31 to 43, 45 dBm, odd values only GSM 1800: (1) 29 to 41, 43 dBm, odd values only. GSM 1900: (1) 29 to 41, 43 dBm, odd values only. For RBS 2111 the following is valid: GSM 900: 31 to 43, 45 (1) , 47 dBm, odd values only GSM 1800: (1) , 47 dBm, odd values only 31 to 43, 45 For RBS 2309 the following is valid: (1) GSM 900: 25 to 37, 39 dBm, odd values only GSM 1800: (1) 25 to 37, 39 dBm, odd values only GSM 1900: (1) 25 to 37, 39 dBm, odd values only. For RBS 2301/2302/2308 the following is valid: 222/1553-HSC 103 12/16 Uen B | 2010-06-18 27
  34. 34. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems GSM 800 (2308 only): (1) 21 to 33, 35 dBm, odd values only (1) GSM 900: 21 to 33, 35 dBm, odd values only GSM 1800: (1) 21 to 33, 35 dBm, odd values only For RBS 2401 indoor the following is valid: GSM 900: 7 to 19 dBm, odd values only GSM 9 to 21 dBm, odd values only 1800: GSM 1900: 9 to 21 dBm, odd values only For RBS 2409 the following is valid: GSM 1800: (4) 11 to 23 dBm, odd values only GSM 1900: (4) 11 to 23 dBm, odd values only For RBS 6000 DUG/RUS, GSM 800/900/1800/1900, the following is valid (both odd and even values): Maximum Number of TRXs in one MCPA: power per 1 2 3 4 MCPA 48 dBm 36 to 48 dBm 33 to 45 dBm 31 to 43 dBm 30 to 42 dBm 46 dBm - 31 to 43 dBm - - 43 dBm 31 to 43 dBm - - - (1) Software Power Boost (not applicable for RBS 2401): The feature Software Power Boost is activated by setting BSPWRT to a special value that is 2 dB higher than the maximum possible power at the PA output. TX diversity is used and each TX supporting the master-slave configuration is configured. A BTS with filter combiner does not support Software Power Boost. (2) Transmitter Coherent Combining (TCC): The feature Transmitter Coherent Combining (TCC) is activated by setting BSPWRT to a special value that is 4 dB higher than the maximum possible power at the PA output. TCC is applicable to RBS 2106, 2107, 2206, 2207 and 2216 only. (3) For GSM 900 - TRU: KRC 131 47/01, the range is 31 to 43 dBm. If one or more GSM TRU type KRC 131 47/01 is used within one cell the maximum output power for that site shall be limited to 43 dBm. To ensure that, the parameter MPWR shall be set to 43 dBm for all TXs on that cell. (4) SWPB and TCC are not applicable 28 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  35. 35. Cell Data 3.1.5 Channel Group Data The channel group data must be given for each defined channel group. A channel group cannot be shared between different subcells. Frequency hopping can not be done between channel groups. CHGR Type: Numeral Range: 0 to 15 Unit: - Default: 0 (for cells without a subcell structure). N/a (for overlaid subcells). 0 (for underlaid subcells) Command: RLCCC, RLDGI , RLCFP , and other commands in which a channel group can be given O&M: - Comments: Channel group number. A cell is divided into one or more channel groups that contain all physical channels on an arbitrary number of frequencies. Cells with a subcell structure must have at least one channel group defined in each subcell. A cell without a subcell structure is given CHGR = 0 by default. However, a cell planned with a subcell structure such as overlaid and underlaid subcells is given CHGR = 0 by default for the underlaid subcell. A maximum of 16 channel groups per cell can be defined for a cell. A total of 1024 channel groups may be defined per BSC. STATE Type: Identifier Range: ACTIVE, HALTED Unit: - 222/1553-HSC 103 12/16 Uen B | 2010-06-18 29
  36. 36. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems Default: - Command: RLSTC, RLSTP O&M: - Comments: Cell or Channel Group state: ACTIVE The cell or channel group is active. HALTED The cell or channel group is halted. HOP Type: Identifier Range: ON, OFF Unit: - Default: OFF Command: RLCHC, RLCFP O&M: When changing the parameter from OFF to ON all ongoing calls in the channel group might be dropped. Comments: Frequency hopping status: ON The hopping status for the channel group is hopping for TCH and SDCCH. OFF The hopping status for the channel group is non hopping. SDCCHs as well as TCHs can hop. A BCCH will not hop even if it belongs to a channel group defined as hopping. HSN Type: Numeral Range: 0 to 63 Unit: - Default: - Command: RLCHC, RLCFP. O&M: Changing of this parameter might cause all ongoing calls in the channel group to be dropped. 30 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  37. 37. Cell Data Comments: Hopping sequence number. The hopping BPC is transmitted on a set of frequencies included in a Hopping Frequency Set (HFS). The order of the frequencies to transmit on is defined by the hopping sequence number HSN, as described in Reference [8]. HSN = 0 cyclic hopping sequence. HSN = 1 to 63 pseudo random sequences. NUMREQBPC Type: Numeral / Identifier Range: 8 to 128 in steps of 8, SYSDEF Unit: - Default: SYSDEF Command: RLBDC, RLBDP. O&M: - Comments: The number of required basic physical channels (BPCs) in a channel group. SYSDEF System defined limit. The number of BPCs is defined by the number of frequencies in a channel group. DCHNO Type: Numeral Range: 128 to 251 (GSM 800). 1 to 124 (GSM 900, P-band). 0, 975 to 1023 (GSM 900, G1-band). 512 to 885 (GSM 1800). 512 to 810 (GSM 1900) Unit: ARFCN Default: - Command: RLCFI, RLCFE, RLCFP 222/1553-HSC 103 12/16 Uen B | 2010-06-18 31
  38. 38. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems O&M: If DCHNO is added or removed in an ACTIVE channel group with synthesized frequency hopping, all ongoing calls could be dropped and channel group might be misconfigured. Comments: Absolute RF channel number. A maximum of 128 DCHNO can be defined per cell. A maximum of 32 DCHNO per channel group can be defined except for channel group 0, which allows only 31 DCHNO. This is because one RF channel has to be reserved for the BCCH that is defined by BCCHNO. A channel group may consist of frequencies from different GSM 900 bands with one restriction. If the BCCH frequency is defined in the P-band other DCHNO are only allowed in the P-band and not in the G1-band. For frequency hopping channel groups, additional restrictions in terms of maximum range and maximum number of frequencies apply for different frequency bands (1x00 stands for 1800 or 1900): Frequency band Number of freqs Max range in the channel in the hopping group channel group 800 1-22 any 900 >22 112 900,P any any 900,P&G1 1-22 any 900,P&G1 >22 112 1x00 1–18 any 1x00 19-22 256 1x00 >22 112 (1) (1) The range stretches over the modulo 1024 border. For example, the frequencies ARFCN 1003, 1005, 4, 7 and 8 are within the range of 29. BCCD Type: Identifier Range: YES, NO Unit: - Default: YES Command: RLCHC , RLCHP 32 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  39. 39. Cell Data O&M: - Comments: Defines if the channel group frequencies are allowed (YES) or not (NO) for Immediate Assignment. It might not be possible to set BCCD=YES for all channel groups in the cell. This is due to restrictions on the maximum number of hopping frequencies allowed for Immediate Assignment and their maximum ranges for different frequency bands (1x00 stands for 1800 or 1900): Frequency Number of Max range band(s) in the hopping freqs cell for ImmAss 800 1–22 any 800 23–64 112 900,P 1–64 any 900,P&G1 1–22 any 900,P&G1 23–64 112 1x00 1–18 any 1x00 19–22 256 1x00 23–64 112 800 & 900,P 1–22 any 800 & 900,P 23–64 112 800 & 900,P&G1 1–18 any 800 & 900,P&G1 19–22 256 800 & 900,P&G1 23–64 112 800 & 1x00 1–16 any 800 & 1x00 17–18 512 900,P & 1x00 1–16 any 900,P & 1x00 17–18 512 900,P & 1x00 19–22 256 900,P&G1 & 1x00 1–16 any 900,P&G1 & 1x00 17–18 512 900,P&G1 & 1x00 19–22 256 900,P&G1 & 1x00 23–64 112 (1) (1) The range stretches over the modulo 1024 border. For example, the frequencies ARFCN 1003,1005, 4, 7 and 8 are within the range of 29. 222/1553-HSC 103 12/16 Uen B | 2010-06-18 33
  40. 40. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems SDCCH Type: Numeral Range: 0 to 32 Unit: - Default: - Command: RLCCC, RLCFP O&M: - Comments: Required number of SDCCH/8. Call set up, location updating and SMS are using the SDCCH channel. The system supports four types of combination for SDCCH channels: • SDCCH/4: The SDCCH is combined with the BCCH in time slot 0 on the BCCH carrier. This SDCCH configuration provides 4 subchannels for signalling. Only one SDCCH/4 can be defined for each cell. (BCCHTYPE = COMB). • SDCCH/4 including CBCH: One subchannel is replaced by a CBCH. This SDCCH/4 configuration provides 3 subchannels for signalling and one for transmission of 47SMSCB messages. (BCCHTYPE = COMBC). • SDCCH/8: This SDCCH configuration provides 8 subchannels for signalling (BCCHTYPE = NCOMB, CBCH = NO). • SDCCH/8 including CBCH: One subchannel is replaced by a CBCH. This SDCCH/8 configuration provides 7 subchannels for signalling and one for transmission of SMSCB messages (BCCHTYPE = NCOMB, CBCH = YES). 34 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  41. 41. Cell Data Up to 32 SDCCH/8 can be specified per cell. This number is reduced by one if an SDCCH/4 is defined for the cell. The number of SDCCH/8s in a channel group is limited to a maximum equal to: • the number of TRXs in that channel group, when the feature Increased SDCCH Capacity is not available • an average of 2 SDCCH/TRX in the cell, when the feature Increased SDCCH Capacity is available, that is more than 2 SDCCH is possible in some channel groups (1) (1) With the function Adaptive Configuration of Logical Channels, the number of required SDCCHs in a cell can be automatically adapted depending on the demand for such channels. TN Type: Numeral Range: 0 to 7 (normal cell) Unit: - Default: 2 Command: RLCCC, RLCFP O&M: - Comments: Timeslot numbers where the SDCCH/8s will be located. For channel groups in the underlaid subcell with extended range the TN(s) can only be defined on even values. (1) (1) A CBCH can only be configured if the defined TN(s) contains TN 0, 1, 2 and/or 3. CBCH Type: Identifier Range: YES, NO Unit: - 222/1553-HSC 103 12/16 Uen B | 2010-06-18 35
  42. 42. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems Default: NO Command: RLCCC, RLCFP O&M: - Comments: Cell broadcast channel. YES CBCH shall be included in one of the SDCCH/8 for the cell or channel group. NO No SDCCH/8 for the cell or channel group shall include CBCH. (1) (1) A CBCH can only be configured if the defined TN(s) contains TN 0, 1, 2 and/or 3. TSC Type: Numeral Range: 0 to 7 Unit: - Default: Base station colour code (BCC) part of the BSIC Command: RLDTC, RLDTP O&M: The parameter is only allowed to be changed when the target channel group is in the state HALTED. Comments: Training Sequence Code. The Training Sequence Code can only be changed for channel groups 1 to 15. It is possible to have different TSCs in different channel groups. It is not possible to directly change TSC for channel group 0. Instead it gets the same value as the BCC part of the cells BSIC. 36 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  43. 43. Cell Data 3.2 Neighbouring Cell Relation Data 3.2.1 Neighbouring Cell Relation Data Note: Within this chapter, only relations to GSM neighbouring cell are described. For the description of relations to UMTS neighbouring cells, see parameter CELLR, Page 234. There are two types of parameters that can be defined for each neighbouring cell relation; Hysteresis and Offset parameters. It is possible to define up to 64 neighbours for each cell. A total of up to 32768 neighbouring cell relations (internal and external) can be defined per BSC, from which a maximum of 32768 can be external. CELLR Type: String Range: 1 to 7 characters except ALL Unit: - Default: - Command: RLNRI, RLNRC, RLNRE, RLNRP O&M: - Comments: Related cell designation. The identity of the neighbouring cell for which the set of parameters should be applied is specified by means of CELLR. The name of the neighbouring cell must be specified here. All internal neighbor relations are mutual unless explicitly specified. Example: If cell B is defined as a neighbor to cell A (CELLR = B) with certain values for the hysteresis and offset parameters then cell A is automatically defined as a neighbor to cell B with the same hysteresis values (symmetric relation) and the same absolute values but opposite sign for the offset parameters (asymmetric relation). CTYPE 222/1553-HSC 103 12/16 Uen B | 2010-06-18 37
  44. 44. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems Type: String Range: EXT, Omitted Unit: - Default: Omitted Command: RLDEI, RLLHP, RLDEP O&M: - Comments: External cell. If the neighbouring cell belongs to another BSC then this must be specified explicitly by means of CTYPE. EXT The neighbouring cell is external. Omitted The neighbouring cell is internal. In addition CGI, BSIC, LAYER, LAYERTHR, LAYERHYST, PSSTEMP, PTIMTEMP, BCCHNO, BSPWR, BSTXPWR, BSRXMIN, BSRXSUFF, MSTXPWR, MSRXMIN, MSRXSUFF, AW, SCHO, MISSNM and EXTPEN must be specified for an external neighbouring cell. These parameters are also defined in the neighbouring cell's home BSC. RELATION Type: String Range: SINGLE, Omitted Unit: - Default: Omitted Command: RLNRI O&M: - Comments: The parameter is only specified when the relation is one way cell →cellr. This means that offset and hysteresis parameters are only defined in one direction. RELATION is always set to single for external cells, that is neighbouring cells that belong to another BSC. CS 38 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  45. 45. Cell Data Type: String Range: YES, NO Unit: - Default: NO Command: RLNRC, RLNRP O&M: - Comments: Co-site, which indicates if a cell shares the same site as its neighbor. YES Cell is co-sited with neighbor. NO Cell is not co-sited with neighbor. 3.2.2 Additional Parameters Defined for Neighbour Cell Relations These parameters need to be defined, together with the parameters in Section 3.2.1 on page 37, for neighbor cell relations. They are defined by means of the command RLNRC. BQOFFSET BQOFFSETAFR BQOFFSETAWB AWOFFSET CAND Ericsson 1 locating algorithm: TRHYST KHYST LHYST TROFFSET KOFFSET LOFFSET Ericsson 3 locating algorithm: HIHYST 222/1553-HSC 103 12/16 Uen B | 2010-06-18 39
  46. 46. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems LOHYST HYSTSEP OFFSET 3.2.3 External Neighbor Cell Data Note: Within this chapter, only external GSM neighbouring cell are described. For the description of external UMTS neighbouring cells, see parameter CELL, Page 228. These parameters need to be defined, together with the parameters in Section 3.2.1 on page 37 and Section 3.2.2 on page 39, for external neighbouring cells. If applicable, also values for the cell locating hierarchical data (see Section 3.17 on page 177) shall be given. A total of up to 2048 external cells can be defined per BSC. CGI BSIC BCCHNO MISSNM EXTPEN SCHO BSPWR BSTXPWR MSTXPWR BSRXMIN MSRXMIN BSRXSUFF MSRXSUFF AW LAYER LAYERTHR LAYERHYST 40 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  47. 47. Cell Data PSSTEMP PTIMTEMP 3.3 Idle Mode Behaviour 3.3.1 Paging - MSC data PAGREP1LA Type: Numeral Range: 0 to 3 Unit: - Default: 2 Command: DBTSP:TAB=AXEPARS, SETNAME=GSMMMSC O&M: - Comments: Repeated paging in one location area. The parameter is optional. This parameter defines in case of mobile terminating calls how the paging in one location area is repeated. 0 Paging in one location area is not repeated. 1 Paging in one location area is repeated with either TMSI or IMSI. 2 Paging in one location area is repeated with IMSI. 3 Paging is repeated as global paging with IMSI. (1) (1) This parameter is only defined for Ericsson MSCs. PAGREPGLOB Type: Numeral Range: 0 to 1 Unit: - Default: 0 222/1553-HSC 103 12/16 Uen B | 2010-06-18 41
  48. 48. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems Command: DBTSP:TAB=AXEPARS, SETNAME=GSMMMSC O&M: - Comments: Repeated global paging. The parameter is optional. This parameter defines how the global paging is repeated if the first paging attempt was global. 0 Global paging is not repeated. 1 Global paging is repeated with IMSI. (1) (1) This parameter is only defined for Ericsson MSCs. PAGNUMBERLA Type: Numeral Range: 1 to 3 Unit: - Default: 1 Command: MGEPC , MGEPP. O&M: - Comments: Number of location areas in a paging message. This parameter indicates the maximum permitted amount of location areas that can be included in a paging message. The parameter is optional. A parameter with a value > 1 is only valid if all BSCs connected to an MSC/VLR support a paging message with a list of location areas. (1) (1) This parameter is only defined for Ericsson MSCs. PAGTIMEFRST1LA Type: Numeral Range: 2 to 10 42 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  49. 49. Cell Data Unit: s Default: 4 Command: MGEPC , MGEPP. O&M: - Comments: Time supervision for the first paging in one location area. This parameter defines the time supervision for the page response of the first paging attempt in one location area. After expiration of this timer the paging is repeated according to parameter PAGREP1LA. The parameter is optional. (1) (1) This parameter is only defined for Ericsson MSCs. PAGTIMEFRSTGLOB Type: Numeral Range: 2 to 10 Unit: s Default: 4 Command: MGEPC , MGEPP. O&M: - Comments: Time supervision for the first global paging. This parameter defines the time supervision for the page response of the first global paging attempt. After expiration of this timer the paging is repeated according to parameter PAGREPGLOB. The parameter is optional. (1) (1) This parameter is only defined for Ericsson MSCs. PAGTIMEREP1LA Type: Numeral Range: 2 to 10 222/1553-HSC 103 12/16 Uen B | 2010-06-18 43
  50. 50. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems Unit: s Default: 7 Command: MGEPC , MGEPP O&M: - Comments: Time supervision for the repeated paging in one location area. The parameter is optional. This parameter defines the time supervision for the page response of repeated paging in one location area. After expiration of this timer no new paging repetition for this call is done. (1) (1) This parameter is only defined for Ericsson MSCs PAGTIMEREPGLOB Type: Numeral Range: 2 to 10 Unit: s Default: 7 Command: MGEPC , MGEPP O&M: - Comments: Time supervision for the repeated global paging. The parameter is optional. This parameter defines the time supervision for page response of repeated global paging. After expiration of this timer no new paging repetition for this call is done. (1) (1) This parameter is only defined for Ericsson MSCs 3.3.2 LATA Administration - MSC Data The following exchange properties are valid only if the function Equal Access and Transit Network Selection in MSC/VLR and GMSC is implemented. This is an optional GSM1900 function. 44 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  51. 51. Cell Data LATAUSED Type: Numeral Range: 0, 1 Unit: - Default: 0 Command: MGEPC , MGEPP. O&M: - Comments: Defines the usage of LATA administration. 0 LATA administration is not used. 1 LATA administration is used. The parameter is optional. (1) (1) This parameter is only defined for Ericsson MSCs. PAGLATA Type: Numeral Range: 0, 1 Unit: - Default: 0 Command: DBTSP:TAB=AXEPARS,SETNAME=GSMMMSC. O&M: - Comments: Indicates if LATA paging is used for mobile terminating calls or not. 0 LATA paging is not used. 1 LATA paging is used. This parameter is only valid if parameter LATAUSED = 1. The parameter is optional. (1) (1) This parameter is only defined for Ericsson MSCs. PAGREPCT1LA Type: Numeral Range: 0 to 3 Unit: - 222/1553-HSC 103 12/16 Uen B | 2010-06-18 45
  52. 52. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems Default: 2 Command: DBTSP:TAB=AXEPARS,SETNAME=GSMMMSC. O&M: - Comments: Defines how the paging is repeated in one location area. 0 Paging in one location area is not repeated. 1 Paging in one location area is repeated with either TMSI or IMSI. 2 Paging in one location area is repeated with TMSI. 3 Paging is repeated as call delivery LATA paging with IMSI. This parameter is only valid if parameter PAGLATA = 1. The parameter is optional. (1) (1) This parameter is only defined for Ericsson MSCs. PAGTIMEREPLATA Type: Numeral Range: 2 to 10 Unit: s Default: 7 Command: MGEPC , MGEPP. O&M: - Comments: Defines the time supervision for page response of repeated LATA paging. After expiration of this timer no new paging repetition for this call is done. This parameter is only valid if parameter PAGLATA = 1. The parameter is optional. (1) (1) This parameter is only defined for Ericsson MSCs. 46 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  53. 53. Cell Data 3.3.3 Implicit Detach - MSC Data BTDM Type: Numeral Range: 6 to 1530 in steps of 6, OFF Unit: min Default: OFF Command: MGIDP , MGIDI. O&M: - Comments: Base time duration of implicit detach of a mobile subscriber by the network. BTDM must be as long as the longest periodic updating time (T3212) in the interworking BSCs. The supervision time is the sum of BTDM and GTDM. (1) (1) This parameter is only defined for Ericsson MSCs. GTDM Type: Numeral Range: 0 to 255 Unit: min Default: - Command: MGIDP , MGIDI. O&M: - Comments: Guard time duration. The guard time is used to prevent unnecessary marking of MS as implicit detached. (1) (1) This parameter is only defined for Ericsson MSCs. 3.3.4 Automatic Deregistration - MSC Data TDD 222/1553-HSC 103 12/16 Uen B | 2010-06-18 47
  54. 54. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems Type: Numeral Range: 1 to 255, OFF Unit: days Default: OFF Command: MGADI. O&M: - Comments: Automatic deregistration supervision time. Offers the possibility to automatically deregister mobile subscribers that have had no radio contact during a certain period of time in the MSC/VLR. (1) (1) This parameter is only defined for Ericsson MSCs. 3.3.5 Idle Mode Behaviour - Cell Data These parameters are sent in the System Information on BCCH & SACCH. Note: Within this chapter, only parameters that are used in GSM cell selection and reselection are described. For the description of parameters used in GSM - UMTS cell reselection, see parameter UMFI, Page 223. ACCMIN Type: Numeral Range: 47 to 110 Unit: See comments Default: 110 Command: RLSSC, RLSSP O&M: - Comments: Minimum received signal level in dBm at the MS for permission to access the system. 47 greater than –48 dBm (level 63) 48 –49 to –48 dBm (level 62) ... 108 –109 to –108 dBm (level 2) 48 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  55. 55. Cell Data 109 –110 to –109 dBm (level 1) 110 less than –110 dBm (level 0) In Ericsson's GSM system, the MS power can be controlled by the parameter CCHPWR, which indicates the maximum transmitter power that the MS is allowed to use when performing an access to the system (Reference [6]). Whilst in idle mode, the MS continuously confirms that it has chosen the most appropriate cell by calculating the quantity C1 from the received signal level rxlev: C1 = (rxlev —ACCMIN) —max (CCHPWR —P, 0) The MS camps on the cell providing the highest positive C1. The condition states that an MS must measure signal strength higher than ACCMIN from a cell to be able to access the system via this cell. In addition, if the MS maximum possible output power, P, is lower than CCHPWR then the requirement on the signal strength increases by the difference between P and CCHPWR. This means that if the MS cannot reach the maximum output power then the requirement on the signal strength in the downlink is harder. In this case, the measured cell is probably not designed for MSs of that class. A low value of ACCMIN means that the coverage in idle mode is improved at the expense of the risk of having an increased number of call set-up failures. CCHPWR Type: Numeral Range: 13 to 43 in steps of 2 (GSM 800). 13 to 43 in steps of 2 (GSM 900). 4 to 30 in steps of 2 (GSM 1800). 4 to 30 in steps of 2 (GSM 1900) Unit: dBm Default: - Command: RLSSC, RLSSP 222/1553-HSC 103 12/16 Uen B | 2010-06-18 49
  56. 56. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems O&M: - Comments: Maximum transceiver power level an MS may use when accessing on a control channel. CRH Type: Numeral Range: 0 to 14 in steps of 2 Unit: dB Default: 4 Command: RLSSC, RLSSP O&M: - Comments: Cell Reselection Hysteresis. Receiving signal strength (rxlev) hysteresis for required cell reselection over location area border. Each change of location area requires a location update to be performed, which increases signalling load. In order to prevent ping-pong effects for cell selection across location area borders, a hysteresis, defined by CRH, is used. A cell in a different location area is only selected if it is “better” in terms of the quantity C2 for GSM phase 2 mobiles or C1 for GSM phase 1 mobiles, than the cells in the current location area by at least the value of CRH during a period of 5 seconds. The C2 criterion is given in the description of parameter CRO. (Reference [6]). NCCPERM Type: Numeral Range: 0 to 7 Unit: - Default: - Command: RLSSC, RLSSP 50 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  57. 57. Cell Data O&M: - Comments: PLMN (NCC) Permitted. Defines the allowed NCCs (Network Colour Code) on the BCCH carriers for which the MS is permitted to send measurement reports. Up to 8 NCCs can be defined (Reference [7], section 10.5.2.27). See also parameter BSIC, Page 16. (1) (1) NCCPERM is not changeable if a Competitor Coverage Evaluation Active BA-list Recording is ongoing. SIMSG Type: Numeral Range: 1, 7, 8 Unit: - Default: - Command: RLSMC, RLSMP O&M: - Comments: System Information BCCH Message. When the cell is connected to a BTS equipment that supports GSM phase 2 system information, it is possible to turn on or off the distribution of System Information Messages 1, 7, and 8. SIMSG is the pointer which specifies the System Information Message to be turned on or off by the parameter MSGDIST. MSGDIST must be specified for each one of the System Information Messages. (1) Example of parameter settings: SIMSG = 1 MSGDIST = ON SIMSG = 7 MSGDIST = OFF SIMSG = 8 MSGDIST = OFF (1) The parameter AGBLK must not be zero when system information types 7 and 8 are sent. MSGDIST 222/1553-HSC 103 12/16 Uen B | 2010-06-18 51
  58. 58. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems Type: Identifier Range: ON, OFF Unit: - Default: see comments Command: RLSMC, RLSMP O&M: - Comments: System Information BCCH Message distribution. ON System Information BCCH Message is distributed. OFF System Information BCCH Message is not distributed. Recommended default settings: MSGDIST type 1 = ON MSGDIST type 7 = OFF MSGDIST type 8 = OFF (1) (1) Channel group 0 has to be in state ACTIVE when this parameter is set. CB Type: Identifier Range: YES, NO Unit: - Default: NO Command: RLSBC, RLSBP O&M: - Comments: Cell Bar Access. Defines whether the cell is barred for access or not. NO The cell is not barred for access. YES The cell is barred for access. It is possible to use CB to bar a cell (Reference [6] and Reference [9]). When a cell is barred it is ignored by MSs in idle mode but an active MS can perform handover to it. 52 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  59. 59. Cell Data CBQ Type: Identifier Range: HIGH, LOW Unit: - Default: HIGH Command: RLSBC, RLSBP O&M: - Comments: Cell Bar Qualify. HIGH The cell has high priority LOW The cell has low priority For GSM phase 2 MSs, a cell can be given two levels of priority. This is controlled by the parameter CBQ in conjunction with CB, as shown in below table. The interpretation of CB and CBQ varies depending on whether the MS is a phase 1 MS or a phase 2 MS. For phase 2 MSs the behaviour is also different in cell selection compared to cell reselection. CBQ CB Phase 2 MS Phase 1 MS Cell sel. Cell resel. Cell sel./resel. HIGH NO normal normal normal HIGH YES barred barred barred LOW NO low priority normal normal LOW YES low priority normal normal In idle mode the MS looks for suitable cells to camp on by checking cells in descending order of received signal strength. If a suitable cell is found, the MS camps on it. At cell selection with a phase 2 MS, cells can have two levels of priority, suitable cells which are of low priority are only camped on if there are no other suitable cells of normal priority (Reference [6]). ACC 222/1553-HSC 103 12/16 Uen B | 2010-06-18 53
  60. 60. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems Type: Numeral/Identifier Range: 0 to 15, CLEAR Unit: - Default: CLEAR Command: RLSBC, RLSBP O&M: - Comments: Access Control Class. Defines which access classes that are barred. Up to 16 access classes can be defined. Class 10 defines emergency call in the cell. 0 to 9 Access classes that are barred. 10 Emergency call not allowed for MSs belonging to classes 0 to 9. 11 to 15 Access classes that are barred. CLEAR No access classes are barred. It may be of interest to the operator to bar the access to the system to a certain type of MS. For this purpose it is possible to define up to 16 different access classes of MSs and then select the classes that can not access a cell by means of ACC (Reference [7], section 10.5.2.29). The classes are defined according to Reference [2]. Classes 0 to 9 are reserved for the operator to be used for normal subscribers (home and visiting subscribers). Classes 11 to 15 are defined as follows: 11 PLMN use. 12 Security Services. 13 Public utilities. 14 Emergency services. 15 PLMN staff. MAXRET 54 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  61. 61. Cell Data Type: Numeral Range: 1, 2, 4, 7 Unit: - Default: 4 Command: RLSBC, RLSBP O&M: - Comments: Maximum retransmissions. Defines maximum number of retransmissions an MS may do when accessing the system on RACH. TX Type: Numeral Range: 3 to 12, 14, 16, 20, 25, 32, 50 Unit: - Default: 50 Command: RLSBC, RLSBP 222/1553-HSC 103 12/16 Uen B | 2010-06-18 55
  62. 62. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems O&M: - Comments: TX-integer. Defines the number of timeslots over which the MS may spread transmission when accessing the system. When the MS accesses the system it can spread the transmission over a certain number of timeslots. The parameter TX that the MS receives as a part of the system information message (Reference [7], section 10.5.2.29) is used to calculate the time interval between successive transmissions. The MS sends maximum MAXRET+1 Channel Request messages on the RACH to the BTS in a way such that (Reference [7], section 3.3.1.2): • the number of slots belonging to the mobile station's RACH between initiation of the immediate assignment procedure and the first Channel Request message (excluding the slot containing the message itself) is a value drawn randomly for each new initial assignment initiation with uniform probability distribution in the set {0, 1 , ..., max(TX,8)–1}. • the number of slots belonging to the mobile station's RACH between two successive Channel Request messages (excluding the slots containing the messages themselves) is a value drawn randomly for each new transmission with uniform probability distribution in the set {S, S+1, ..., S+TX–1}, where S is a parameter depending on the CCCH-configuration and - for GSM phase 2 mobiles - on the value of TX as defined in the table below. TX S for GSM phase 2 MSs non combined CCCH combined CCCH/SDCCH 56 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  63. 63. Cell Data 3, 8, 14, 50 55 41 4, 9, 16 76 52 5, 10, 20 109 58 6, 11, 25 163 86 7, 12, 32 217 115 Example (GSM phase 2 MS): If the cell has a non combined CCCH and TX=7 then the interval between each retransmission may be 1 second (217 RACH slots), 1 sec. + 4.615 ms, 1 sec. + 2*4.615 ms, ... 1 sec. + 6*4.615 ms For GSM phase 1 mobiles, S takes the following values: 0.25 seconds in case of non-combined CCCH. 0.35 seconds in case of combined CCCH/SDCCH. ATT Type: Identifier Range: YES, NO Unit: - Default: YES Command: RLSBC, RLSBP O&M: - Comments: Attach-detach allowed. NO MSs in the cell are not allowed to apply IMSI attach and detach. 222/1553-HSC 103 12/16 Uen B | 2010-06-18 57
  64. 64. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems YES MSs in the cell should apply IMSI attach and detach. ATT tells the MS if it is allowed to apply IMSI attach and detach, that is if the MS is allowed to send a message to the system every time it is turned on or off (Reference [7], section 10.5.2.11). T3212 Type: Numeral Range: 0 to 255 Unit: Deci hours Default: 40 Command: RLSBC, RLSBP O&M: - Comments: T3212 time-out value. (1) Defines the time-out value that controls the location updating procedure, that is when notifying the availability of the MS to the network. (Reference [7], section 10.5.2.11). 0 Infinite time-out. 1 0.1 hours. ... 255 25.5 hours. (1) See the corresponding MSC parameter BTDM, Page 47. CRO Type: Numeral Range: 0 to 63 Unit: dB Default: 0 Command: RLSBC, RLSBP O&M: - Comments: Cell Reselection Offset. 58 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  65. 65. Cell Data Defines an offset to encourage or discourage MSs to select the cell while it is camping on another cell, that is perform a cell reselection. 0 0 dB 1 2 dB ... 63 126 dB In order to optimise cell reselection, the additional cell reselection parameters CRO, TO, and PT are broadcast on the BCCH of each cell. The cell reselection process employs a quantity C2 for GSM phase 2 MSs, which depends on these parameters (Reference [6]). GSM phase 1 MSs use the quantity C1 for cell reselection instead, that is these mobiles do not experience an offset. The reselection quantity C2 is defined as: C2 = C1 + CRO — TO * for PT ≠ 31 H(PT —T) C2 = C1 —CRO for PT = 31 where H(x) = 0 for x < 0 222/1553-HSC 103 12/16 Uen B | 2010-06-18 59
  66. 66. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems = 1 for x ≥ 0 T is the timer, started from zero at the point at which the cell was placed by the MS on the list of strongest carriers. T is reset to zero whenever the cell is no longer on the list of strongest carriers. This will tend to prevent fast moving MSs from selecting the cell (Reference [6]). The quantity C1 is given in the description of parameter ACCMIN (see Page 48). CRO applies an offset to the C2 reselection criterion for the cell. TO applies a negative offset to C2 for the duration of PT after the timer has started for the cell. PT is the duration for which TO applies. The value 31 of the PT parameter is reserved to change the sign of CRO and the value of TO is ignored as indicated by the equation defining C2. These parameters are used to ensure that the MS is camped on the cell with which it has the probability of successful communication on uplink and downlink (Reference [9]). (1) (1) The setting of this parameter only affects GSM phase 2 MSs. TO Type: Numeral Range: 0 to 7 Unit: dB Default: 0 Command: RLSBC, RLSBP O&M: - Comments: Temporary Offset. Defines a negative offset applied to CRO. 0 0 dB 1 10 dB ... 6 60 dB 60 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  67. 67. Cell Data 7 infinite. (1) (1) The setting of this parameter only affects GSM phase 2 MSs. PT Type: Numeral Range: 0 to 31 Unit: - Default: 0 Command: RLSBC, RLSBP O&M: - Comments: Penalty Time. Defines duration for which TO is applied. 0 20 seconds 1 40 seconds ... 31 620 seconds The value 31 indicates that the cell reselection offset is negative and that the temporary offset is ignored. (1) (1) The setting of this parameter only affects GSM phase 2 MSs. CCCH Type: Numeral Range: 1-4 Unit: - Default: 1 Command: RLCCC O&M: - Comment: The required number of CCCHs. If the parameter CCCH is set to 1, the feature CCCH is not activated. TNBCCH Type: String Range: GPRS, EGPRS 222/1553-HSC 103 12/16 Uen B | 2010-06-18 61
  68. 68. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems Unit: - Default: GPRS Command: RLBDC, RLBDP O&M: - Comment: Indicates if a Timeslot Number (TN) preceding a TN with a CCCH should be possible to configure supporting EGPRS or GPRS only. 3.3.6 BSC Exchange Property Data PAGBUNDLE Type: Numeral Range: 0-100 Unit: ms Default: 50 Command: ROEPC O&M: - Comment: The parameter is used to set bundling time for paging messages sent on the Abis interface to Multiple CCCH capable RBSs. 3.3.7 Hardware Characteristics Data CCCHCMD Type: String Range: NORMAL, BCCHMOVE Unit: - Default: NORMAL Command: RXMOC, RXMSC O&M: - Comment: The parameter indicates if it is allowed to move the BCCH and configure it on another TRX in order to fulfill the requirements on the number of CCCHs in the cell (e.g. the original TRX is not Multiple CCCH capable). 62 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  69. 69. Cell Data 3.4 Locating 3.4.1 Intra-MSC Handover - MSC Data Intra-MSC handover is a handover between BSCs within the MSC. These parameters are valid both for anchor and non-anchor MSCs. HNDRELCHINTRAM Type: Numeral Range: 0, 1 Unit: - Default: 1 Command: AXE Parameter. O&M: - Comments: Channel release in intra-MSC inter-BSC handover. HNDRELCHINTRAM defines the release of the original channel after expiration of the timer TIMHNDCMDINTRAM for handover time supervision in intra-MSC inter-BSC handover. 0 The handover signalling is terminated and the call continues on the original channel. 1 The original channel is released. (1) (1) This parameter is only defined for Ericsson MSCs. HNDSDCCHM Type: Numeral Range: 0, 1 Unit: - Default: 1 Command: AXE Parameter. O&M: - 222/1553-HSC 103 12/16 Uen B | 2010-06-18 63
  70. 70. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems Comments: Intra-MSC inter-BSC handover on signalling channels. HNDSDCCHM determines if intra-MSC inter-BSC handover is allowed on signalling channels: 0 Intra-MSC inter-BSC handover is not allowed on signalling channels. 1 Intra-MSC inter-BSC handover is allowed on signalling channels. (1) (1) This parameter is only defined for Ericsson MSCs. HNDSDCCHTCHM Type: Numeral Range: 0, 1 Unit: - Default: 1 Command: AXE Parameter. O&M: - Comments: Intra-MSC inter-BSC handover from signalling to traffic channel. HNDSDCCHTCHM determines if intra-MSC inter-BSC handover is allowed from signalling to traffic channel: 0 Intra-MSC inter-BSC handover is not allowed from signalling to traffic channel. 1 Intra-MSC inter-BSC handover is allowed from signalling to traffic channel. (1) (1) This parameter is only defined for Ericsson MSCs. TIMHNDCMDINTRAM Type: Numeral Range: 5 to 120 64 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  71. 71. Cell Data Unit: Seconds with 1 sec intervals Default: 15 Command: AXE Parameter. O&M: - Comments: Time supervision in intra-MSC inter-BSC handover. TIMHNDCMDINTRAM describes the time between the HANDOVER COMMAND and HANDOVER COMPLETE messages in intra-MSC inter-BSC handover (according to Reference [4]). (1) (1) This parameter is only defined for Ericsson MSCs. HNDTGSOPINTRA Type: Numeral Range: 0 to 2500 Unit: Milliseconds with 20 ms intervals Default: 80 Command: AXE Parameter. O&M: - Comments: Time supervision of switching moment of the group switch (GS) in the MSC at intra-MSC inter-BSC handover. The parameter is only valid and can only be changed if the time supervision is used to define the operation point of the GS. Timer is started at sending of Handover Command message. 222/1553-HSC 103 12/16 Uen B | 2010-06-18 65
  72. 72. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 0 no time supervision which means GS is changed at reception of “handover detect” message or “handover complete” message. The path in the GS in the MSC will be changed at the first occurrence of the following event: • timer expiry. • reception of HANDOVER DETECT from the target BSC. • reception of HANDOVER COMPLETE from the target BSC. (1) (1) This parameter is only defined for Ericsson MSCs. 3.4.2 Inter-MSC Handover in Anchor MSC - MSC Data HNDSDCCHINTOM Type: Numeral Range: 0, 1 Unit: - Default: 1 Command: AXE Parameter. O&M: - Comments: Outgoing inter-MSC handover on signalling channels in anchor MSC. It determines if outgoing inter-MSC handover is allowed on signalling channels in anchor MSC. The parameter is only valid if the inter-MSC handover dialogue is established with MAP version 2. 0 Outgoing inter-MSC handover is not allowed on signalling channels. 1 Outgoing inter-MSC handover is allowed on signalling channels. (1) (1) This parameter is only defined for Ericsson MSCs. 66 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  73. 73. Cell Data HNDBEFOREBANSWM Type: Numeral Range: 0, 1 Unit: - Default: 1 Command: AXE Parameter. O&M: - Comments: Handover before B-answer. The parameter indicates if an inter-MSC handover is allowed on traffic channels before answer from B-subscriber. 0 Not allowed. 1 Handover allowed. (1) (1) This parameter is only defined for Ericsson MSCs. 3.4.3 Inter-MSC Handover in Non-Anchor MSC - MSC Data HNDSDCCHINTI Type: Numeral Range: 0, 1 Unit: - Default: 1 Command: MGEPC, MGEPP. O&M: - Comments: Incoming inter-MSC handover on signalling channels in non-anchor MSC. It determines if incoming inter-MSC handover is allowed on signalling channels in non-anchor MSC. The parameter is only valid if the inter-MSC handover dialogue has been established with MAP version 2 by the anchor MSC. 0 Incoming inter-MSC handover is not allowed on signalling channels. 222/1553-HSC 103 12/16 Uen B | 2010-06-18 67
  74. 74. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 1 Incoming inter-MSC handover is allowed on signalling channels. (1) (1) This parameter is only defined for Ericsson MSCs. 3.4.4 BSC Exchange Property Data FASTASSIGN Type: Numeral Range: 0, 1 Unit: - Default: 0 Command: RAEPC, RAEPP. O&M: - Comments: FASTASSIGN specifies if Locating shall wait until reception of the first measurement results before sending the requested candidate list. 0 Wait for measurement results. 1 Do not wait for measurement results. If no measurements are available and FASTASSIGN = 1, a candidate list that only contains the serving cell is created and sent. NOOFPHYSINFOMSG Type: Numeral Range: 0 to 254 Unit: - Default: 35 Command: RAEPC, RAEPP. 68 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  75. 75. Cell Data O&M: In order to make the parameter change active, it is needed to halt and activate all cells in the BSC. Comments: NOOFPHYSINFOMSG indicates the maximum number of repetitions of physical information messages during the handover procedure (NY1, see Reference [7], section 3.4.4). TIMER3105 Type: Numeral Range: 2 to 255 Unit: deci seconds Default: 6 Command: RAEPC, RAEPP. O&M: - Comments: TIMER3105 indicates the time between repetition of physical information messages during the handover procedure (T3105, see Reference [7], section 3.4.4). 3.4.5 Algorithm Selection - BSC Data EVALTYPE Type: Numeral Range: 1, 3 Unit: - Default: 3 Command: RLLBC, RLLBP O&M: - Comments: Evaluation type. EVALTYPE allows for the use of two different types of locating algorithm. 1 Cell ranking by the Ericsson1 locating algorithm. 222/1553-HSC 103 12/16 Uen B | 2010-06-18 69
  76. 76. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems 3 Cell ranking by the Ericsson3 locating algorithm. The Ericsson3 locating algorithm is simplified compared to the Ericsson1 algorithm. 3.4.6 Flow Control - BSC Data TINIT Type: Numeral Range: 0 to 120 Unit: SACCH periods (480 ms) Default: 10 Command: RLLBC, RLLBP O&M: - Comments: Minimum time before handover is allowed on an initial call or after handover. The locating comparison is performed every SACCH period (480 ms), except for certain periods for which the maximum lengths are specified by the parameters: TINIT, TALLOC and TURGEN. They apply to different situations. The locating process is suspended during a time specified by TINIT. TALLOC Type: Numeral Range: 0 to 120 Unit: SACCH periods (480 ms) Default: 2 Command: RLLBC, RLLBP 70 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  77. 77. Cell Data O&M: - Comments: Minimum time between allocation attempts when there is a better cell condition and when the first allocation attempt has failed. In the case a handover, intra cell handover or overlaid/underlaid subcell change fails due to congestion, the locating process continues but no handover candidate list will be prepared before the timer TALLOC has expired, unless an urgency state is detected. TURGEN Type: Numeral Range: 0 to 120 Unit: SACCH periods (480 ms) Default: 2 Command: RLLBC, RLLBP O&M: - Comments: Minimum time between allocation attempts at an urgency condition and when the first allocation attempt has failed. In the case an urgency handover attempt fails due to congestion, the locating process will proceed and even a handover candidate list will be prepared. However the candidate list will not be transferred to the handover function during the time specified by the parameter TURGEN, unless the candidate list contains a better cell. 3.4.7 Filter Control - BSC Data TAAVELEN Type: Numeral Range: 1 to 20 222/1553-HSC 103 12/16 Uen B | 2010-06-18 71
  78. 78. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems Unit: - Default: 4 Command: RLLBC, RLLBP O&M: - Comments: Timing advance average length. Number of values in the averaging of timing advance. For the evaluation of timing advance the algorithm uses a sliding window, the length of which is determined by TAAVELEN. TAAVELEN determines the total number of values to be used in the moving average. 3.4.8 Filter Control - Cell Data The measurement results are sent from the BTS to the BSC every SACCH period (480 ms) starting when the MS is assigned an SDCCH. The measurement results are stored and filtered in the BSC. The signal strength and quality measurements are filtered in order to smooth out measurement noise. In addition, some fading components of a duration of about the same as the filter response time, are filtered out. When filtering measurements for a cell, always the filters that are assigned to the cell are used. This means that serving cell and neighbouring cell measurements can be evaluated by different filters, if different filters are assigned to the different cells. The locating filters are numbered from 1 to 9, and correspond to different filter types: 1–5 General FIR filters. 6 Straight average filter. 7 Exponential filter. 8 First order Butterworth filter. 9 Median filter. Note: For a multislot configuration, only the main channel is evaluated. The reported downlink quality measurement on the main channel is the worst quality measured among all the uni-directional channels and the main channel. SSEVALSD 72 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  79. 79. Cell Data Type: Numeral Range: 1 to 9 Unit: - Default: 6 Command: RLLFC, RLLFP O&M: - Comments: Signal strength filter for speech/data. The filters for down- and uplink signal strength in serving cell and downlink signal strength from neighbouring cells are selected by SSEVALSD for the channel mode speech/data. QEVALSD Type: Numeral Range: 1 to 9 Unit: - Default: 6 Command: RLLFC, RLLFP O&M: - Comments: Quality filter for speech/data. The filters for quality in down- and uplink in the serving cell are selected by QEVALSD for the channel mode speech/data. SSEVALSI Type: Numeral Range: 1 to 9 Unit: - Default: 6 Command: RLLFC, RLLFP 222/1553-HSC 103 12/16 Uen B | 2010-06-18 73
  80. 80. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems O&M: - Comments: Signal strength filter for signalling only. The filters for down- and uplink signal strength in serving cell and downlink signal strength from neighbouring cells are selected by SSEVALSI for the channel mode signalling only. QEVALSI Type: Numeral Range: 1 to 9 Unit: - Default: 6 Command: RLLFC, RLLFP O&M: - Comments: Quality filter for signalling only. The filters for quality in down- and uplink in the serving cell are selected by QEVALSI for the channel mode signalling only. SSLENSD Type: Numeral Range: 1 to 20 Unit: SACCH periods (480 ms) Default: 10 Command: RLLFC, RLLFP O&M: - Comments: Length of signal strength filter for speech/data. SSLENSD shall be specified only when SSEVALSD is in the range 6 to 9. QLENSD Type: Numeral Range: 1 to 20 74 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  81. 81. Cell Data Unit: SACCH periods (480 ms) Default: 10 Command: RLLFC, RLLFP O&M: - Comments: Length of quality filter for speech/data. QLENSD shall be specified only when QEVALSD is in the range 6 to 9. SSLENSI Type: Numeral Range: 1 to 20 Unit: SACCH periods (480 ms) Default: 4 Command: RLLFC, RLLFP O&M: - Comments: Length of signal strength filter for signalling only. SSLENSI shall be specified only when SSEVALSI is in the range 6 to 9. QLENSI Type: Numeral Range: 1 to 20 Unit: SACCH periods (480 ms) Default: 4 Command: RLLFC, RLLFP O&M: - Comments: Length of quality filter for signalling only. QLENSI shall be specified only when QEVALSI is in the range 6 to 9. SSRAMPSD Type: Numeral Range: 1 to 20 222/1553-HSC 103 12/16 Uen B | 2010-06-18 75
  82. 82. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems Unit: SACCH periods (480 ms) Default: 5 Command: RLLFC, RLLFP O&M: - Comments: Ramping length of signal strength filter for speech/data. SSRAMPSD shall be specified only when SSEVALSD is in the range 6 to 9. SSRAMPSI Type: Numeral Range: 1 to 20 Unit: SACCH periods (480 ms) Default: 2 Command: RLLFC, RLLFP O&M: - Comments: Ramping length of signal strength filter for signalling only. SSRAMPSI shall be specified only when SSEVALSI is in the range 6 to 9. MISSNM Type: Numeral Range: 0 to 18 Unit: - Default: 3 Command: RLLOC, RLLOP 76 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  83. 83. Cell Data O&M: - Comments: Maximum number of consecutive missing measurements for a serving cell or neighbouring cell permitted before all old measurements are considered invalid. If a measurement on a neighbouring BTS is missing in the measurement report, that neighbor is not included in the evaluation. When a new measurement report containing information about that BTS is received, the missing values are linearly interpolated. But the interpolation is only allowed if the number of missing measurements is equal to or smaller than a certain number that is determined by MISSNM. When the number of missing measurements exceeds MISSNM all former measurements from that BTS are discarded and the evaluation of that BTS starts again when a new value arrives. If an urgency condition occurs and there are no neighbouring cells in the current measurement, the last received measurement containing neighbours is used. If the number of missing measurements exceeds the parameter MISSNM the old measurements are considered invalid. If a measurement from serving cell is missing, locating is suspended until the serving cell measurements start again. 3.4.9 Basic Ranking - Cell Data BSPWR Type: Numeral Range: 0 to 80 Unit: dBm. Default. - 222/1553-HSC 103 12/16 Uen B | 2010-06-18 77
  84. 84. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems Command: RLLOC, RLLOP O&M: - Comments: BSPWR is the BTS output power on the BCCH frequency. BSPWR is defined at the reference point used in the locating algorithm. MSRXMIN Type: Numeral Range: 0 to 150 Unit: dBm (negative) Default: - Command: RLLOC, RLLOP O&M: - Comments: Minimum required signal strength received at the MS in a given cell to consider the cell as a possible candidate for handover. MSRXMIN takes a positive value, which represents the corresponding negative value in calculations. BSRXMIN Type: Numeral Range: 0 to 150 Unit: dBm (negative) Default: - Command: RLLOC, RLLOP O&M: - Comments: Minimum required signal strength received at the BTS, at the reference point, to consider the cell as a possible candidate for handover. BSRXMIN takes a positive value, which represents the corresponding negative value in calculations. MSRXSUFF 78 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  85. 85. Cell Data Type: Numeral Range: 0 to 150 Unit: dBm (negative) Default: - Command: RLLOC, RLLOP O&M: - Comments: Sufficient signal strength received at the MS to consider the cell selectable for further ranking according to the magnitude of the path loss. MSRXSUFF takes a positive value that represents the corresponding negative value in calculations. BSRXSUFF Type: Numeral Range: 0 to 150 Unit: dBm (negative) Default: - Command: RLLOC, RLLOP O&M: - Comments: Sufficient signal strength received at the BTS, at the reference point, to consider the cell selectable for further ranking according to the magnitude of the path loss. BSRXSUFF takes a positive value, which represents the corresponding negative value in calculations. 3.4.10 Basic Ranking - Cell/Subcell Data This parameter may be defined different for underlaid and overlaid subcell. In case there is no subcell structure defined, it is defined per cell. BSTXPWR Type: Numeral Range: 0 to 80 222/1553-HSC 103 12/16 Uen B | 2010-06-18 79
  86. 86. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems Unit: dBm Default: - Command: RLLOC, RLLOP O&M: - Comments: BSTXPWR is the BTS output power on all frequencies other than the BCCH frequency. BSTXPWR is defined at the reference point used in the locating algorithm. 3.4.11 Basic Ranking - Neighbor Cell Data Parameters for the Ericsson1 Locating Algorithm KHYST Type: Numeral Range: 0 to 63 Unit: dB Default: 3 Command: RLNRC, RLNRP O&M: - Comments: Signal strength hysteresis when evaluating K-cells. KHYST is the hysteresis for cell borders defined by the signal strength criterion. It is defined as a cell-to-cell relation. that is in each cell it can be defined individually for each neighbor that has been defined for that cell. KHYST is a symmetrical relation parameter, that is the same value applies for both directions of the cell-to-cell relation. (1) (1) KHYST is only valid for the Ericsson1 locating algorithm. LHYST Type: Numeral Range: 0 to 63 80 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  87. 87. Cell Data Unit: dB Default: 3 Command: RLNRC, RLNRP O&M: - Comments: Path loss hysteresis when evaluating L-cells. LHYST is the hysteresis for cell borders defined by the path loss criterion. It is defined as a cell-to-cell relation. that is in each cell it can be defined individually for each neighbor that has been defined for that cell. LHYST is a symmetrical relation parameter, that is the same value applies for both directions of the cell-to-cell relation. (1) (1) LHYST is only valid for the Ericsson1 locating algorithm. TRHYST Type: Numeral Range: 0 to 63 Unit: dB Default: 2 Command: RLNRC, RLNRP O&M: - Comments: Signal strength hysteresis for a K- and L-cell border segment. (1) (1) TRHYST is only valid for the Ericsson1 locating algorithm. KOFFSET Type: Numeral Range: -63 to 63 Unit: dB Default: 0 Command: RLNRC, RLNRP 222/1553-HSC 103 12/16 Uen B | 2010-06-18 81
  88. 88. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems O&M: - Comments: Signal strength offset when evaluating K-cells. An offset value is a certain amount of dB by which the path loss or the signal strength can be adjusted in order to push the cell border towards or away from the serving BTS. (1) (1) KOFFSET is only valid for the Ericsson1 locating algorithm. LOFFSET Type: Numeral Range: -63 to 63 Unit: dB Default: 0 Command: RLNRC, RLNRP O&M: - Comments: Path loss offset when evaluating L-cells. (1) (1) LOFFSET is only valid for the Ericsson1 locating algorithm. TROFFSET Type: Numeral Range: -63 to 63 Unit: dB Default: 0 Command: RLNRC, RLNRP O&M: - Comments: Signal strength offset for a K- and L-cell border segment. (1) (1) TROFFSET is only valid for the Ericsson1 locating algorithm. Parameters for the Ericsson3 Locating Algorithm HIHYST 82 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  89. 89. Cell Data Type: Numeral Range: 0 to 63 Unit: dB Default: 5 Command: RLNRC, RLNRP O&M: - Comments: Signal strength hysteresis when evaluating high signal strength cells. (1) (1) HIHYST is only valid for the Ericsson3 locating algorithm. LOHYST Type: Numeral Range: 0 to 63 Unit: dB Default: 3 Command: RLNRC, RLNRP O&M: - Comments: Signal strength hysteresis when evaluating low signal strength cells. (1) (1) LOHYST is only valid for the Ericsson3 locating algorithm. HYSTSEP Type: Numeral Range: 0 to 150 Unit: dBm (negative) Default: 90 Command: RLNRC, RLNRP 222/1553-HSC 103 12/16 Uen B | 2010-06-18 83
  90. 90. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems O&M: - Comments: Signal strength separator for high and low signal strength cells. HYSTSEP takes a positive value that represents the corresponding negative value in calculations. (1) (1) HYSTSEP is only valid for the Ericsson3 locating algorithm. OFFSET Type: Numeral Range: -63 to 63 Unit: dB Default: 0 Command: RLNRC, RLNRP O&M: - Comments: Signal strength offset. (1) (1) OFFSET is only valid for the Ericsson3 locating algorithm. 3.4.12 Urgency Conditions - BSC Exchange Property Data These parameters are used for statistical reasons only and do not influence the locating process. BADQDL Type: Numeral Range: 0 to 100 Unit: Deci transformed GSM quality units (dtqu) Default: 55 Command: RAEPC, RAEPP O&M: - Comments: Bad quality limit for urgency condition, downlink. BADQUL 84 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  91. 91. Cell Data Type: Numeral Range: 0 to 100 Unit: Deci transformed GSM quality units (dtqu) Default: 55 Command: RAEPC, RAEPP O&M: - Comments: Bad quality limit for urgency condition, uplink. LOWSSDL Type: Numeral Range: 47 to 110 Unit: dBm (negative) Default: 104 Command: RAEPC, RAEPP O&M: - Comments: Low signal strength limit for urgency condition, downlink. LOWSSUL Type: Numeral Range: 47 to 110 Unit: dBm (negative) Default: 104 Command: RAEPC, RAEPP O&M: - Comments: Low signal strength limit for urgency condition, uplink. 3.4.13 Urgency Conditions - Cell Data TALIM 222/1553-HSC 103 12/16 Uen B | 2010-06-18 85
  92. 92. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems Type: Numeral Range: 0 to 63 (normal range cell). 0 to 219 (extended range cell) Unit: Bit periods (bp) Default: 62 Command: RLLUC, RLLUP O&M: - Comments: Timing advance limit for handover. Urgency detection parameter. TALIM determines the maximum timing advance that the MS is recommended to use in the cell. If the measured and averaged timing advance value is equal to or greater than TALIM, the cell must be abandoned urgently if there exists a neighbouring cell that can take over the connection. If no such cell exists no action is taken. The useful range of TALIM is 0 to 219 Extended range cells with RBS 2000. 0 to 63 Normal range cells. PSSBQ Type: Numeral Range: 0 to 63 Unit: dB Default: 10 Command: RLLPC, RLLPP O&M: - Comments: Signal strength penalty when handover due to bad quality. This penalty is valid during PTIMBQ. (1) (1) In order to minimise the risk of immediate handback, PSSBQ should be greater than (BQOFFSET - hysteresis). (That means KHYST or LHYST when using the Ericsson1 locating algorithm respective HIHYST or LOHYST when using the Ericsson3 locating algorithm.) PSSTA 86 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  93. 93. Cell Data Type: Numeral Range: 0 to 63 Unit: dB Default: 63 Command: RLLPC, RLLPP O&M: - Comments: Signal strength penalty when handover due to too large timing advance. This penalty is valid during PTIMTA. PTIMBQ Type: Numeral Range: 0 to 600 Unit: Seconds Default: 10 Command: RLLPC, RLLPP O&M: - Comments: Penalty time when handover due to bad quality. PTIMTA Type: Numeral Range: 0 to 600 Unit: Seconds Default: 10 Command: RLLPC, RLLPP O&M: - Comments: Penalty time when handover due to too large timing advance. 3.4.14 Urgency Conditions - Neighbor Cell Data BQOFFSET Type: Numeral Range: 0 to 63 222/1553-HSC 103 12/16 Uen B | 2010-06-18 87
  94. 94. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems Unit: dB Default: 3 Command: RLNRC, RLNRP O&M: - Comments: Signal strength region for bad quality urgency handovers. For AMR FR connections, the parameter BQOFFSETAFR is used. For AMR WB connections the parameter BQOFFSETAWB is used. (1) (1) BQOFFSET is defined as a cell-to-cell relation and is a symmetrical parameter. BQOFFSETAFR Type: Numeral Range: 0 to 63 Unit: dB Default: 3 Command: RLNRC, RLNRP O&M: - Comments: Signal strength region for bad quality urgency handovers for AMR FR connections. (1) (1) BQOFFSETAFR is defined as a cell-to-cell relation and is a symmetrical parameter. BQOFFSETAWB Type: Numeral Range: 0–63 Unit: dB Default: 3 Command: RLNRC, RLNRP 88 222/1553-HSC 103 12/16 Uen B | 2010-06-18
  95. 95. Cell Data O&M: - Comment: Signal strength region for bad quality urgency handover for AMR-WB connections. (1) (1) BQOFFSETAWB is defined as a cell-to-cell relation and is a symmetrical parameter. 3.4.15 Urgency Conditions - External Neighbor Cell Data EXTPEN Type: Identifier Range: ON, OFF Unit: - Default: OFF Command: RLLOC, RLLOP 222/1553-HSC 103 12/16 Uen B | 2010-06-18 89
  96. 96. User Description, Radio Network Parameters and Cell Design Data for Ericsson's GSM Systems O&M: - Comments: Handover penalty support. The parameter EXTPEN shall be used for external neighbouring cells, and defines whether the penalty can be received by that cell (that is the BSC controlling that cell). It tells whether the target BSC (and MSC) supports the penalty handling or not. The value OFF activates an inter-BSC handling at urgency handover that allows urgency handover to a cell in another BSC only if the mobile is within a distance radio wise of KHYST or LHYST (Ericsson 1) or HIHYST or LOHYST (Ericsson 3) from the average cell border, that is without hysteresis. The value ON activates the penalty handling that consists of sending a handover cause value to the target BSC. The cause value is interpreted by the target BSC as “urgency handover”. Both TA urgency as well as bad quality urgency can be recognised. The target BSC carries out the punishment of the cell in the old BSC that was abandoned. However, it uses the penalty parameter value and penalty time of the new cell. (1) (1) EXTPEN should be set to OFF if the external neighbouring cell belongs to a BSC from another vendor. 3.4.16 Urgency Conditions - Cell/Subcell Data These parameters may be defined different for underlaid and overlaid subcells. In case there is no subcell structure defined, they are defined per cell. QLIMDL Type: Numeral Range: 0 to 100 90 222/1553-HSC 103 12/16 Uen B | 2010-06-18

×