ts_125331v120300p

3GPP TS 25.331 version 12.3.0 Release 12
595
ETSI TS 125 331 V12.3.0 (2014-10)
4> use IEs "SFN" and "UTRAN GANSS timing of cell frames" to estimate the relationship between
GANSS time and air-interface timing of the NODE B transmission in the cell indicated by "Primary
CPICH info" or "cell parameters id".
1> if the IE "T UTRAN-GANSS drift rate" is included:
2> store this IE in the IE "UE positioning GANSS reference time" in variable
UE_POSITIONING_GANSS_DATA; and
2> may use it as an estimate of the drift rate of the NODE B clock relative to GANSS time.
8.6.7.19.7.8 UE positioning GANSS reference UE position
If the IE "UE positioning GANSS reference UE position" is included, the UE shall:
1> store this IE in the IE "UE positioning GANSS reference UE position" in variable
UE_POSITIONING_GANSS_DATA; and
1> use it as a priori knowledge of the approximate location of the UE.
8.6.7.19.7.9 UE positioning GANSS time model
If the IE "UE positioning GANSS time model" is included, the UE shall for each GANSS:
1> store the information in "UE positioning GANSS time model" in variable UE_POSITIONING_GANSS_DATA;
1> use the stored parameters to relate GANSS time for the GANSS indicated by "GANSS ID" to time reference
indicated by IE "GNSS_TO_ID".
8.6.7.19.7.10 UE positioning GANSS UTC model
If the IE "UE positioning GANSS UTC model" is included, the UE shall for each GANSS:
1> store this IE in the IE "UE positioning GANSS UTC model" in variable UE_POSITIONING_GANSS_DATA.
8.6.7.19.7.11 UE positioning GANSS data bit assistance
If the IE "UE positioning GANSS data bit assistance" is included, the UE shall for each GANSS:
1> store this IE in the IE "UE positioning GANSS data bit assistance" in variable
UE_POSITIONING_GANSS_DATA;
1> use the data in IE "Data Bits" for data wipe-off of satellite signal indicated by IEs "Satellite ID" and "GANSS
Signal ID".
8.6.7.19.7.12 UE positioning GANSS additional ionospheric model
If the IE "UE positioning GANSS additional ionospheric model" is included, the UE shall:
1> store this IE in the IE "UE positioning GANSS additional ionospheric model" in variable
UE_POSITIONING_GANSS_DATA;
1> act on these GANSS additional ionospheric model parameters in a manner similar to that specified in [72], [86].
8.6.7.19.7.13 UE positioning GANSS Earth orientation parameters
If the IE "UE positioning GANSS Earth orientation parameters" is included, the UE shall:
1> store this IE in the IE "UE positioning GANSS Earth orientation parameters" in variable
UE_POSITIONING_GANSS_DATA;
1> act on these GANSS Earth orientation parameters in a manner similar to that specified in [68].
ETSI