C.3 Relationship to E-OTD reporting periods
3GPP45.010GSM/EDGE Radio subsystem synchronizationTS
The relationship between the E-OTD reporting period , the BTS frequency source’s rms time interval error (RMS of Time Interval Error, see ITU-T Recommendation G.810), and the maximum admissible range error is given by (see 3GPP TS 45.050, annex V.7):
in which is the speed of the waves (usually taken as , the speed of light in vacuum) and is a constant which sets the percentile associated with . (When the TIE has a Gaussian distribution , , and .) In practice, the BTS frequency source stability and required E-OTD range accuracy are likely to be given and table C.3.1 allows the corresponding value of the E-OTD reporting period to be read off.
Table C.3.1: Relationship between frequency source stability,
E-OTD reporting period and E-OTD range errors
|
E-OTD Reporting Period () |
E-OTD MTIE @ 95% |
r max @ 95% |
BTS frequency source stability – Normalised TIErms |
|
1 second |
50ns 100ns 200ns |
15 meters 30 meters 60 meters |
0.018 s/sec 0.036 s/sec 0.072s/sec |
|
3 seconds |
50ns 100ns 200ns |
15 meters 30 meters 60 m eters |
0.006 s/sec 0.012s/sec 0.024 s/sec |
|
10 seconds |
50ns 100ns 200ns |
15 meters 30 meters 60 meters |
0.0018 s/sec 0.0036 s/sec 0.0072 s/sec |
|
30 seconds |
50ns 100ns 200ns |
15 meters 30 meters 60 meters |
0.0006 s/sec 0.0012 s/sec 0.0024 s/sec |
|
100 seconds |
50ns 100ns 200ns |
15 meters 30 meters 60 meters |
0.00018 s/sec 0.00036 s/sec 0.00072 s/sec |
|
300 seconds |
50ns 100ns 200ns |
15 meters 30 meters 60 meters |
0.00006 s/sec 0.00012 s/sec 0.00024s/sec |
|
1000 seconds |
50ns 100ns 200ns |
15 meters 30 meters 60 meters |
0.000018 s/sec 0.000036 s/sec 0.000072 s/sec |
For example given the requirement for r max @ 95% shall be better than 60m and an observed frequency stability is 0,00072 s/sec then the resulting E-OTD Reporting Period () from the LMU making the observations will be no greater than 100 seconds.
Annex D (informative):
Change history
|
SPEC |
SMG# G# |
CR |
Phase |
Version |
New_Version |
Subject |
|
05.10 |
s25 |
A013 |
R97 |
6.0.0 |
6.1.0 |
Clarification of the use of TAI |
|
05.10 |
s25 |
A014 |
R97 |
6.0.0 |
6.1.0 |
Renaming of GPRS RR states |
|
05.10 |
s25 |
A015 |
R97 |
6.0.0 |
6.1.0 |
GPRS, Missing Timing Advance Updates on PTCCH |
|
05.10 |
s26 |
A016 |
R97 |
6.1.0 |
6.2.0 |
Correction to timing advance for GPRS |
|
05.10 |
s26 |
A009 |
R98 |
6.2.0 |
7.0.0 |
Pico BTS |
|
05.10 |
s27 |
A017 |
R97 |
6.2.0 |
6.3.0 |
Packet polling procedure for calculating new TA |
|
05.10 |
s28 |
A020 |
R97 |
6.3.0 |
6.4.0 |
GPRS MS timing requirements |
|
05.10 |
s28 |
A021 |
R97 |
6.3.0 |
6.4.0 |
Correction of Timing Advance Procedure |
|
05.10 |
s28 |
A023 |
R97 |
6.3.0 |
6.4.0 |
Definition of additional GPRS related reaction times |
|
05.10 |
s28 |
A026 |
R97 |
6.3.0 |
6.4.0 |
Continuous timing advance procedure failure |
|
05.10 |
s28 |
A018 |
R98 |
6.4.0 |
7.0.0 |
Harmonization between GSM and PCS 1900 standard |
|
05.10 |
s28 |
A019 |
R98 |
6.4.0 |
7.0.0 |
Synchronization requirements for CTS |
|
05.10 |
s28 |
A025 |
R98 |
6.4.0 |
7.0.0 |
Synchronization requirements for the control of the CTS service range |
|
05.10 |
s29 |
A027 |
R98 |
7.0.0 |
7.1.0 |
Correction of CTS-FP frequency source correction slope |
|
05.10 |
s29 |
A033 |
R98 |
7.0.0 |
7.1.0 |
Timing advance for access bursts on PTCCH/U |
|
05.10 |
s29 |
A036 |
R98 |
7.0.0 |
7.1.0 |
Reaction time after contention resolution during one phase access |
|
05.10 |
s30 |
A038 |
R99 |
7.1.0 |
8.0.0 |
EDGE Compact logical channels |
|
05.10 |
s30 |
A042 |
R99 |
7.1.0 |
8.0.0 |
Definition of other reaction times |
|
05.10 |
s30b |
A039 |
R99 |
8.0.0 |
8.1.0 |
Extended range TA information added in 05.10 |
|
05.10 |
s30b |
A043 |
R99 |
8.0.0 |
8.1.0 |
Synchronization of 52-multiframes in EGPRS COMPACT |
|
05.10 |
s30b |
A049 |
R99 |
8.0.0 |
8.1.0 |
Defining the MS carrier frequency accuracy value for GSM 400 MS |
|
05.10 |
s31 |
A050 |
R99 |
8.1.0 |
8.2.0 |
Modifications for 8-PSK |
|
05.10 |
s31 |
A051 |
R99 |
8.1.0 |
8.2.0 |
Timegroup definition removal from 05.10 |
|
05.10 |
s31b |
A054 |
R99 |
8.2.0 |
8.3.0 |
EGPRS Classic to COMPACT BTS synchronization |
|
05.10 |
s31b |
A056 |
R99 |
8.2.0 |
8.3.0 |
BTS Synchronization, Location Accuracy and LMU update rates |
|
05.10 |
s32 |
A058 |
R99 |
8.3.0 |
8.4.0 |
Class A Dual Transfer Mode (DTM) |
|
September 2000 – TSG-GERAN#1 |
||||||
|
05.10 |
G01 |
A059 |
R99 |
8.4.0 |
8.5.0 |
Correction of assignment reaction time |
|
05.10 |
G01 |
A061 |
R99 |
8.4.0 |
8.5.0 |
Addition of the switching requirement for the GSM to UTRAN |
|
November 2000 – TSG-GERAN#2 |
||||||
|
05.10 |
G02 |
A065 |
R99 |
8.5.0 |
8.6.0 |
Corrections to synchronised handover |
|
05.10 |
G02 |
A066 |
R99 |
8.5.0 |
8.6.0 |
Reaction time at packet assignment with polling request |
|
8.6.0 |
8.6.1 |
Front page layout correction |
||||
|
January 2001 – TSG-GERAN#3 |
||||||
|
05.10 |
G03 |
A067 |
8.6.1 |
8.7.0 |
Delay requirements for blind handover to UTRAN |
|
|
05.10 |
G03 |
A069 |
8.6.1 |
8.7.0 |
Timing requirements for Blind Handover 2G2G |
|
|
April 2001 – TSG-GERAN#4 |
||||||
|
05.10 |
G04 |
A073 |
1 |
8.7.0 |
8.8.0 |
Updates to GSM-UTRAN Handover Interruption Times |
|
Change history |
|||||||
|
Date |
TSG GERAN# |
TSG Doc. |
CR |
Rev |
Subject/Comment |
Old |
New |
|
2001-04 |
04 |
Version for Release 4 |
4.0.0 |
||||
|
2001-04 |
07 |
GP-012776 |
001 |
1 |
Correction of references to relevant 3GPP TSs |
4.0.0 |
4.1.0 |
|
2002-02 |
08 |
GP-020453 |
002 |
1 |
Clarification to Requirements for Synchronization at DTM operation |
4.1.0 |
4.2.0 |
|
2002-06 |
10 |
GP-021930 |
005 |
1 |
Correction to inter system handover interruption times |
4.2.0 |
4.3.0 |
|
2002-06 |
10 |
Version for release 5 |
4.3.0 |
5.0.0 |
|||
|
2002-08 |
11 |
GP-022216 |
007 |
Editorial clean up of references |
5.0.0 |
5.1.0 |
|
|
2003-02 |
13 |
GP-030215 |
009 |
Timing of DTM assignment |
5.1.0 |
5.2.0 |
|
|
2003-02 |
13 |
GP-030439 |
011 |
2 |
Correction of interruption times for GSM to UTRAN handover |
5.1.0 |
5.2.0 |
|
2003-04 |
14 |
GP-030884 |
016 |
Clarification on continuous TA procedure |
5.2.0 |
6.0.0 |
|
|
2003-06 |
15 |
GP-031547 |
020 |
Clarification on USF decoding reaction time on reception of a new assignment |
6.0.0 |
6.1.0 |
|
|
2003-08 |
16 |
GP-032117 |
022 |
1 |
Clarification of reaction times for Extended Dynamic Allocation and Shifted USF operation |
6.1.0 |
6.2.0 |
|
2003-08 |
16 |
GP-032284 |
025 |
2 |
Correction of definition of "ready to transmit" for inter-RAT handover |
6.1.0 |
6.2.0 |
|
2003-08 |
16 |
GP-032186 |
028 |
1 |
MS reaction time upon reception of assignment message on CCCH |
6.1.0 |
6.2.0 |
|
2004-11 |
22 |
GP-042881 |
030 |
1 |
Timing Advance behaviour for DTM to Packet Transfer mode transition |
6.2.0 |
6.3.0 |
|
2005-01 |
23 |
GP-050139 |
031 |
Timing Advance for multiple TBFs in Packet Transfer mode |
6.3.0 |
6.4.0 |
|
|
2005-01 |
23 |
GP-050289 |
032 |
Timing advance for MBMS |
6.3.0 |
6.4.0 |
|
|
2005-04 |
24 |
GP-050862 |
033 |
Clarification of MS requirements for synchronization |
6.4.0 |
6.5.0 |
|
|
2005-11 |
27 |
GP-052749 |
0034 |
1 |
Introduction of PS handover |
6.5.0 |
6.6.0 |
|
2007-02 |
33 |
GP-070200 |
0035 |
Clarifications and editorial corrections |
6.6.0 |
7.0.0 |
|
|
2007-05 |
34 |
GP-070716 |
0036 |
PAN Reaction Times |
7.0.0 |
7.1.0 |
|
|
2007-08 |
35 |
GP-071546 |
0038 |
2 |
Introduction of Reduced Symbol Duration |
7.1.0 |
7.2.0 |
|
2007-11 |
36 |
GP-071967 |
0039 |
1 |
Removal of RL-EGPRS TBF mode |
7.2.0 |
7.3.0 |
|
2008-02 |
37 |
GP-080370 |
0042 |
1 |
Clarifying Radio Block Specific Reaction Times |
7.3.0 |
7.4.0 |
|
2008-05 |
38 |
GP-080780 |
0044 |
1 |
Time synchronisation |
7.4.0 |
7.5.0 |
|
2008-05 |
38 |
GP-080580 |
0046 |
Timing requirements for PS Handover to UTRAN |
7.4.0 |
7.5.0 |
|
|
2008-05 |
38 |
GP-080663 |
0049 |
Reduced Latency terminology alignments |
7.4.0 |
7.5.0 |
|
|
2008-05 |
38 |
GP-080919 |
0050 |
1 |
Clarification to the PDAN reaction times when operating in event based FANR |
7.4.0 |
7.5.0 |
|
2008-05 |
38 |
GP-080582 |
0048 |
Editorial corrections |
7.5.0 |
8.0.0 |
|
|
2008-08 |
39 |
GP-081141 |
0047 |
1 |
Timing requirements for PS Handover to E-UTRAN |
8.0.0 |
8.1.0 |
|
2008-08 |
39 |
GP-081344 |
0052 |
2 |
Assignment reaction time when the TTI configuration of a TBF is changed |
8.0.0 |
8.1.0 |
|
2008-11 |
40 |
GP-081562 |
0053 |
Corrections to the timing requirements for PS Handover to E-UTRAN |
8.1.0 |
8.2.0 |
|
|
2009-02 |
41 |
GP-090148 |
0054 |
Corrections to the timing requirements for PS Handover to E-UTRAN |
8.2.0 |
8.3.0 |
|
|
2009-05 |
42 |
GP-090611 |
0055 |
Removal of brackets |
8.3.0 |
8.4.0 |
|
|
2009-11 |
44 |
GP-092185 |
0060 |
Modification of PAN Related Reaction Times |
8.4.0 |
8.5.0 |
|
|
2009-11 |
44 |
GP-091962 |
0056 |
Introduction of MTD reporting on Hyperframe level |
8.5.0 |
9.0.0 |
|
|
2010-11 |
48 |
GP-102064 |
0061 |
2 |
Reaction times for DTR |
9.0.0 |
10.0.0 |
|
2011-03 |
49 |
GP-110245 |
0062 |
DTR Reaction times: removal of square brackets |
10.0.0 |
10.1.0 |
|
|
2012-08 |
55 |
GP-120925 |
0063 |
Synchronization requirements for Local Area multicarrier BTS |
10.1.0 |
11.0.0 |
|
|
2012-11 |
56 |
GP-121260 |
0064 |
3 |
Impact from rSRVCC from GERAN to E-UTRAN |
11.0.0 |
11.1.0 |
|
2014-09 |
63 |
Version for release 12 (frozen at SP-65) |
11.1.0 |
12.0.0 |
|||
|
2015-11 |
68 |
GP-151216 |
0065 |
5 |
Introduction of EC-EGPRS |
12.0.0 |
13.0.0 |
|
2015-11 |
68 |
GP-151218 |
0066 |
2 |
Introduction of Power Efficient Operation |
12.0.0 |
13.0.0 |
|
2016-02 |
69 |
GP-160182 |
0067 |
1 |
Miscellaneous corrections |
13.0.0 |
13.1.0 |
|
2016-02 |
69 |
GP-160100 |
0068 |
Miscellaneous corrections to eDRX |
13.0.0 |
13.1.0 |
|
|
Change history |
|||||||
|
Date |
Meeting |
TDoc |
CR |
Rev |
Cat |
Subject/Comment |
New version |
|
2016-05 |
RP-70 |
GP-160462 |
0069 |
2 |
F |
Clarifications and miscellaneous corrections to EC-GSM-IoT (including name change) |
13.2.0 |
|
2016-09 |
RP-73 |
RP-161392 |
0070 |
2 |
F |
Corrections to EC-GSM-IoT |
13.3.0 |
|
2016-12 |
RP-74 |
RP-162070 |
0072 |
– |
F |
Miscellaneous corrections to EC-GSM-IoT |
13.4.0 |
|
2017-03 |
RP-75 |
– |
– |
– |
– |
Version for Release 14 (frozen at TSG-75) |
14.0.0 |
|
2017-06 |
RP-76 |
RP-170923 |
0071 |
6 |
B |
Introduction of Multilateration |
14.1.0 |
|
2017-09 |
RP-77 |
RP-171594 |
0074 |
3 |
F |
Corrections to BTS Reception Accuracy Capability for Multilateration Positioning |
14.2.0 |
|
2017-12 |
RP-78 |
RP-172188 |
0075 |
– |
F |
Corrections to Timing Advance setting for ESAB, EDAB and Extended AB |
14.3.0 |
|
2017-12 |
RP-78 |
RP-172189 |
0076 |
– |
F |
Correction to BTS Reception Accuracy Capability for Multilateration Positioning |
14.3.0 |
|
2018-06 |
RP-80 |
– |
– |
– |
– |
Version for Release 15 (frozen at TSG-80) |
15.0.0 |
|
2019-03 |
RP-83 |
RP-190061 |
0079 |
– |
A |
Corrections to BTS / MS synchronization and delay assessment error requirements for EC-GSM-IoT |
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 |