10 Information storage
3GPP43.059Functional stage 2 description of Location Services (LCS) in GERANRelease 17TS
This clause describes information storage structures that are mandatory (M), conditional (C) or optional (O) for LCS in GERAN, and the recovery and restoration procedures needed to maintain service if inconsistencies in databases occur and for lost or invalid database information.
10.1 SMLC
Common Data
Table 2 holds permanent BTS data:
Table 2: Permanent SMLC Data for a BTS
|
Permanent BTS Data Item |
Status |
Description |
|
BTS position |
M |
BTS position (latitude/longitude) of the Serving BTS |
|
CGI |
M |
Cell global identity. |
|
BSIC |
M |
Base station identity code. |
|
BCCH |
M |
Frequency of the broadcast carrier. |
The SMLC holds data for its associated LMUs. The main key to LMU data in the SMLC is the IMSI for a Type A LMU and a cell site identifier for a Type B LMU. LMU data provides the location capabilities of the LMU (e.g. which location and assistance measurements are supported). The following permanent data shall be administered for any LMU.
Table 3: Permanent SMLC Data for an LMU
|
Permanent LMU Data Item |
Status |
Description |
|
Type of LMU |
M |
Indicates if LMU is Type A or Type B |
|
IMSI |
C |
Main key to data for a Type A LMU. Not applicable to a Type B LMU |
|
LAC + CI |
C |
Cell site identifier to address a Type B LMU. Not applicable to a Type A LMU. |
|
Signaling Access |
M |
Information regarding signalling access to the LMU including the following: – address of default serving BSC – SS7 link set to serving BSC (or to an intermediate STP) |
|
Serving Cell |
M |
Identity of the cell in which the LMU is physically located |
|
Geographic location |
C |
Latitude/longitude coordinates Storage of coordinates is mandatory for E-OTD if an LMU is not co-located with a BTS |
|
Position measurement functions |
O |
List of supported position measurements For each type of position measurement, a list of associated capabilities – details are outside the scope of the present document |
|
Assistance measurement functions |
O |
List of supported assistance measurements For each type of assistance measurement, a list of associated capabilities – details are outside the scope of the present document |
|
Diagnostic functions |
O |
List of supported diagnostic functions – details are outside the scope of the present document |
The SMLC also holds the following temporary data for each LMU for which there has been any previous signalling interaction.
Table 4: Temporary SMLC Data for an LMU
|
Temporary LMU Data Item |
Status |
Description |
|
Position Measurements |
O |
Ongoing and scheduled position measurements ordered in the LMU by the SMLC – details are outside the scope of the present document |
|
Assistance Measurements |
O |
Ongoing and scheduled assistance measurements ordered by the SMLC – details are outside the scope of the present document |
|
O&M Activities |
O |
Ongoing and scheduled O&M activities ordered in the LMU by the SMLC – details are outside the scope of the present document |
An LMU contains no mandatory data regarding its associated SMLC. An LMU shall contain permanent data regarding its measurement and O&M capabilities and may contain pre-administered data regarding location assistance measurements and O&M activities that the LMU is to perform without the need for any command from the SMLC. The content of such location measurement and O&M related data is outside the scope of the present document.
10.2 Recovery and Restoration Procedures
The LCS recovery and restoration procedures allow temporary data to be recovered or re-initialized following loss or corruption of data, such that normal LCS service is rapidly restored and inconsistency between the data held by different LCS network elements is removed. For a full description, refer to 3GPP TS 23.007 [4].
Annex A (informative):
Change history
|
Change history |
|||||||
|
Date |
TSG |
TSG Doc. |
CR |
Rev |
Subject/Comment |
Old |
New |
|
2001-04 |
04 |
GP-010942 |
Version for Release 4 |
4.0.0 |
|||
|
2001-06 |
05 |
GP-010988 |
001 |
LCS error handling (Inter-BSC Handover) |
4.0.0 |
4.1.0 |
|
|
2001-06 |
05 |
GP-011308 |
007 |
Geographic Shape Restriction |
4.0.0 |
4.1.0 |
|
|
2001-08 |
06 |
GP-011935 |
010 |
2 |
Correct Faulty References to the BSSAP-LE and RR Specifications |
4.1.0 |
4.2.0 |
|
2001-08 |
06 |
GP-011905 |
011 |
Update of GERAN LCS Stage 2 for Release 5 |
4.2.0 |
5.0.0 |
|
|
2001-11 |
07 |
GP-012836 |
012 |
3 |
Inter NSE Cell Change for LCS for GPRS |
5.0.0 |
5.1.0 |
|
2001-11 |
07 |
GP-011993 |
014 |
Clean-up CR for LCS for GPRS |
5.0.0 |
5.1.0 |
|
|
2001-11 |
07 |
GP-011998 |
016 |
Correction of Inconsistent Text |
5.0.0 |
5.1.0 |
|
|
2001-11 |
07 |
GP-012210 |
018 |
Error Handling for E-OTD and GPS |
5.0.0 |
5.1.0 |
|
|
2001-11 |
07 |
GP-012822 |
019 |
1 |
Use of TOM signaling to support LCS for Gb Mode |
5.0.0 |
5.1.0 |
|
2001-11 |
07 |
GP-012280 |
021 |
Editorial revision definition section for TS 43.059 |
5.0.0 |
5.1.0 |
|
|
2002-02 |
08 |
GP-020039 |
023 |
TOM Protocol Header Definition for LCS for GPRS |
5.1.0 |
5.2.0 |
|
|
2002-02 |
08 |
GP-020437 |
025 |
1 |
Informing an SMLC of a change in the LAC for LCS using BSSLAP |
5.1.0 |
5.2.0 |
|
2002-02 |
08 |
GP-020493 |
026 |
2 |
Stage 2 Updates for Iu Mode LCS |
5.1.0 |
5.2.0 |
|
2002-04 |
09 |
GP-021215 |
027 |
1 |
Corrections to LCS Stage 2 for Release 5 |
5.2.0 |
5.3.0 |
|
2002-04 |
09 |
GP-020621 |
028 |
Inclusion of PTP BVCI for Positioning Procedure over the Gb Interface |
5.2.0 |
5.3.0 |
|
|
2002-04 |
09 |
GP-021127 |
030 |
1 |
Correction of timing when SMLC enters LOCATION state |
5.2.0 |
5.3.0 |
|
2002-04 |
09 |
GP-021225 |
031 |
2 |
LCS Stage 2 Corrections |
5.2.0 |
5.3.0 |
|
2002-04 |
09 |
GP-020998 |
032 |
Correction of MS-SMLC Information Transfer Description |
5.2.0 |
5.3.0 |
|
|
2003-04 |
14 |
GP-031064 |
037 |
8 |
Inclusion of U-TDOA location method |
5.3.0 |
6.0.0 |
|
2003-06 |
15 |
GP-031657 |
038 |
1 |
Inclusion of RR Procedures and enhancement of the Reset procedure for U-TDOA |
6.0.0 |
6.1.0 |
|
2003-11 |
17 |
GP-032501 |
042 |
Inclusion of Channel Mode Modify RR Procedures for U-TDOA calls |
6.1.0 |
6.2.0 |
|
|
2004-04 |
19 |
GP-040634 |
043 |
3 |
Removal of emergency services client type restriction for the U-TDOA location method |
6.2.0 |
6.3.0 |
|
2004-04 |
19 |
GP-040683 |
050 |
1 |
Alignment of GERAN location request procedure to UTRAN |
6.2.0 |
6.3.0 |
|
2004-11 |
22 |
GP-042330 |
051 |
9 |
Inclusion of PS functionality for U-TDOA location method |
6.3.0 |
6.4.0 |
|
2004-11 |
22 |
GP-042701 |
054 |
1 |
Correction to add U-TDOA reference to Cell Change for the PS Domain sub-clause |
6.3.0 |
6.4.0 |
|
2005-04 |
24 |
GP-050766 |
055 |
Enabling the Providing of Velocity |
6.4.0 |
7.0.0 |
|
|
2005-06 |
25 |
GP-051778 |
059 |
1 |
Providing IMSI and IMEI to the SMLC in positioning procedures |
7.0.0 |
7.1.0 |
|
2006-04 |
29 |
GP-060928 |
0064 |
1 |
Correction of State Update Procedure |
7.1.0 |
7.2.0 |
|
2006-04 |
29 |
GP-060870 |
0068 |
1 |
Inclusion of Support for SIGTRAN on Lb-interface |
7.1.0 |
7.2.0 |
|
2006-04 |
29 |
GP-060984 |
0069 |
4 |
Introduction of A-GNSS |
7.1.0 |
7.2.0 |
|
2007-05 |
34 |
GP-070780 |
0071 |
Addition of Positioning Capability Transfer using RRLP |
7.2.0 |
7.3.0 |
|
|
2007-11 |
36 |
GP-072003 |
0072 |
6 |
U-TDOA Enhancement WI modification to procedure for receipt of U-TDOA Request message |
7.3.0 |
8.0.0 |
|
2008-08 |
39 |
GP-081345 |
0075 |
1 |
Support for additional navigation satellite systems |
8.0.0 |
8.1.0 |
|
2009-11 |
44 |
GP-092337 |
0076 |
5 |
Changes to Stage II allowing Parallel positioning |
8.1.0 |
9.0.0 |
|
2011-03 |
49 |
Version for Release 10 |
9.0.0 |
10.0.0 |
|||
|
2012-09 |
55 |
Version for Release 11 |
10.0.0 |
11.0.0 |
|||
|
2014-02 |
61 |
GP-140195 |
0078 |
1 |
Introduction of BDS in GERAN |
11.0.0 |
12.0.0 |
|
2015-12 |
68 |
Version for Release 13 |
12.0.0 |
||||
|
2016-02 |
69 |
GP-160154 |
0079 |
1 |
Introduction of eDRX and EC-EGPRS |
13.0.0 |
13.1.0 |
|
Change history |
|||||||
|
Date |
Meeting |
TDoc |
CR |
Rev |
Cat |
Subject/Comment |
New version |
|
2016-05 |
RP-70 |
GP-160311 |
0080 |
– |
F |
Miscellaneous corrections related to EC-GSM-IoT |
13.2.0 |
|
2017-03 |
RP-75 |
RP-170060 |
0081 |
8 |
B |
Introduction of Multilateration |
14.0.0 |
|
2017-03 |
RP-75 |
RP-170060 |
0082 |
3 |
B |
Introduction of Multilateration OTD |
14.0.0 |
|
2017-06 |
RP-76 |
RP-170923 |
0084 |
3 |
F |
Multilateration – Miscellaneous corrections |
14.1.0 |
|
2017-09 |
RP-77 |
RP-171597 |
0087 |
– |
A |
Removal of references to TS 44.118 |
14.2.0 |
|
2018-03 |
RP-79 |
RP-180068 |
0088 |
1 |
B |
Security Enhancement for MTA in network configuration without LLC security |
15.0.0 |
|
2018-06 |
RP-80 |
RP-180822 |
0089 |
– |
F |
Editorial corrections to Security Enhancement for MTA in network configuration without LLC security |
15.1.0 |
|
2020-07 |
RP-88e |
– |
– |
– |
– |
Upgrade to Rel-16 version without technical change |
16.0.0 |
|
2022-03 |
RP-95e |
– |
– |
– |
– |
Upgrade to Rel-17 version without technical change |
17.0.0 |