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ts_125331v120300p

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3GPP TS 25.331 version 12.3.0 Release 12<br />

1232<br />

ETSI TS 125 331 V12.3.0 (2014-10)<br />

10.3.7.92c<br />

UE positioning GANSS Earth orientation parameters<br />

This IE provides parameters to construct the ECEF and ECI coordinate transformation as defined in [68]. The Earth<br />

Orientation Parameters (EOP) indicate the relationship between the Earth’s rotational axis and WGS-84 reference<br />

system.<br />

Information Element/Group<br />

name<br />

Need Multi Type and<br />

Reference<br />

t EOP MP Bit<br />

String(16)<br />

PM_X MP Bit<br />

String(21)<br />

PM_X_dot MP Bit<br />

String(15)<br />

PM_Y MP Bit<br />

String(21)<br />

PM_Y_dot MP Bit<br />

String(15)<br />

ΔUT1 MP Bit<br />

String(31)<br />

ΔUT1_dot MP Bit<br />

String(19)<br />

Semantics description<br />

EOP data reference time<br />

(seconds) [68]<br />

X-axis polar motion value at<br />

reference time<br />

(arc-seconds) [68]<br />

X-axis polar motion drift at reference<br />

time<br />

(arc-seconds/day) [68]<br />

Y-axis polar motion value at<br />

reference time<br />

(arc-seconds) [68]<br />

Y-axis polar motion drift at reference<br />

time<br />

(arc-seconds/day) [68]<br />

UT1-UTC difference at reference time<br />

(seconds) [68]<br />

Rate of UT1-UTC difference at<br />

reference time<br />

(seconds/day) [68]<br />

Version<br />

REL-8<br />

REL-8<br />

REL-8<br />

REL-8<br />

REL-8<br />

REL-8<br />

REL-8<br />

10.3.7.92d<br />

UE positioning BDS Ionospheric Grid Model<br />

This IE contains BDS Ionospheric Grid information to calculate the propagation delays of the B1I signal through the<br />

ionosphere.<br />

Information Element/Group<br />

name<br />

Need Multi Type and<br />

Reference<br />

BDS Reference Time MP Integer(0..3<br />

570 by step<br />

of 30)<br />

BDS Ionospheric Grid<br />

Information<br />

MP<br />

1 to<br />

<br />

>IGP number MP INTEGER<br />

(1..320)<br />

>Vertical Delay MP BIT<br />

STRING (9)<br />

>GIVEI MP BIT<br />

STRING (4)<br />

Semantics description<br />

Seconds.<br />

Time in BDS system time (modulo<br />

3600 s) when the BDS Ionospheric<br />

Grid Information is valid.<br />

Ionospheric information for upto 16<br />

grid poin<strong>ts</strong> will be included in this<br />

version of the specification.<br />

Ionospheric grid point number<br />

(dimensionless) [86].<br />

Vertical Delay at Ionospheric Grid<br />

Poin<strong>ts</strong> ,(meters) [86]<br />

Grid Ionospheric Vertical Error Index<br />

(dimensionless) [86].<br />

Version<br />

REL-12<br />

REL-12<br />

REL-12<br />

REL-12<br />

REL-12<br />

10.3.7.92e<br />

UE positioning DBDS corrections<br />

This IE contains the BDS differential corrections to be used by UE.<br />

ETSI

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