E.3 Information elements available for UE-assisted

25.1713GPPFrequency Division Duplex (FDD)Release 17Requirements for support of Assisted Global Positioning System (A-GPS)TS

The following GPS assistance data IEs shall be available for each test:

a) UE positioning GPS reference time IE. This information element is defined in subclause 10.3.7.96 of 3GPP TS 25.331 [4].

Table E.5: UE positioning GPS reference time IE

Name of the IE

Fields of the IE

UE Assisted Coarse time

UE Assisted Fine Time

UE positioning GPS reference time
subclause 10.3.7.96 of 3GPP TS 25.331 [4]

GPS Week

Yes

Yes

GPS TOW msec

Yes

Yes

UTRAN GPS reference time

Yes

>UTRAN GPS timing of cell frames

Yes

>CHOICE mode

Yes

>>FDD

Yes

>>>Primary CPICH Info

Yes

>>TDD

 

>>>cell parameters id

 

>SFN

Yes

SFN-TOW Uncertainty

Yes

TUTRAN-GPS drift rate

Yes

GPS TOW Assist

Yes

Yes

SatID

Yes

Yes

TLM Message

Yes

Yes

TLM Reserved

Yes

Yes

Alert

Yes

Yes

Anti-Spoof

Yes

Yes

b) UE positioning GPS reference UE position IE. This information element is defined in subclause 10.3.8.4c of 3GPP TS 25.331 [4].

Table E.6: UE positioning GPS reference UE position IE

Name of the IE

Fields of the IE

UE Assisted Coarse Time

UE Assisted Fine Time

Reference Location
subclause 10.3.8.4c of 3GPP TS 25.331 [4]

Ellipsoid point with Altitude and uncertainty ellipsoid

Yes

Yes

c) UE positioning GPS almanac This information element is defined in subclause 10.3.7.89 of 3GPP TS 25.331 [4]. The Almanac shall be chosen for the reference time.

Table E.7: UE positioning GPS almanac IE

Name of the IE

Fields of the IE

UE Assisted Coarse Time

UE Assisted Fine Time

UE positioning GPS almanac
subclause 10.3.7.89 of 3GPP TS 25.331 [4]

 

Almanac Reference Week

Yes

Yes

 

Satellite information

Yes

Yes

d) UE positioning GPS navigation model IE. This information element is defined in subclause 10.3.7.94 of 3GPP TS 25.331 [4]. The Navigation model will be chosen for the reference time and reference position.

Table E.8: UE positioning GPS navigation model IE

Name of the IE

Fields of the IE

UE Assisted Coarse Time

UE Assisted Fine Time

Navigation Model
subclause 10.3.7.94 of 3GPP TS 25.331 [4]

Yes

Yes

e) UE positioning GPS acquisition assistance IE. This information element is defined in subclause 10.3.7.88 of 3GPP TS 25.331 [4].

Table E.9: UE positioning GPS acquisition assistance IE

Name of the IE

Fields of the IE

UE Assisted Coarse time

UE Assisted Fine Time

Acquisition Assistance
subclause 10.3.7.88 of 3GPP TS 25.331 [4]

–

GPS TOW msec

Yes

Yes

–

UTRAN GPS reference time

Yes

–

>UTRAN GPS timing of cell frames

Yes

–

>CHOICE mode

Yes

–

>>FDD

Yes

–

>>>Primary CPICH Info

Yes

–

>SFN

Yes

–

Satellite information

Yes

Yes

–

>SatID

Yes

Yes

>Doppler (0th order term)

Yes

Yes

>Extra Doppler

Yes

Yes

 >>Doppler (1st order term)

Yes

Yes

>>Doppler Uncertainty

Yes

Yes

>Code Phase

Yes

Yes

>Integer Code Phase

Yes

Yes

>GPS Bit number

Yes

Yes

>Code Phase Search Window

Yes

Yes

>Azimuth and Elevation

Yes

Yes

>> Azimuth

Yes

Yes

>>  Elevation

Yes

Yes

Annex F (normative):
Converting UE-assisted measurement reports into position estimates