3 Definitions, symbols, abbreviations and test tolerances

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

3.1 Definitions

For the purposes of the present document, the terms and definitions given in 3GPP TS 25.101 [1], 3GPP TS 25.104 [2] and the following apply:

Horizontal Dilution Of Precision (HDOP): measure of position determination accuracy that is a function of the geometrical layout of the satellites used for the fix, relative to the receiver antenna

Node B: logical node responsible for radio transmission / reception in one or more cells to/from the User Equipment. Terminates the Iub interface towards the RNC

L1: L band GPS transmission frequency of 1575.42 MHz

3.2 Symbols

Void

3.3 Abbreviations

For the purposes of the present document, the following abbreviations apply:

A-GPS Assisted – Global Positioning System

AWGN Additive White Gaussian Noise

C/A Coarse/Acquisition

CPICH Common Pilot CHannel

DCH Dedicated CHannel

DPCH Dedicated Physical CHannel

DUT Device Under Test

ECEF Earth Centred, Earth Fixed

FACH Fast Access CHannel

FDD Frequency Division Duplex

GPS Global Positioning System

GSS GPS System Simulator

HDOP Horizontal Dilution Of Precision

LOS Line Of Sight

PICH Paging Indicator CHannel

RRC Radio Resource Control

RSCP Received Signal Code Power

SFN System Frame Number

SMLC Standalone Mobile Location Center

SRNC Serving Radio Network Controller

SS FDD System simulator

TDD Time Division Duplex

TLM TeLeMetry word. It contains an 8-bits preamble (10001011)

TOW Time Of Week

TTFF Time To First Fix

UE User Equipment

UTRA Universal Terrestrial Radio Access

UTRAN Universal Terrestrial Radio Access Network

WLS Weighted Least Square

3.4 Test tolerances

The requirements given in the present document make no allowance for measurement uncertainty. The test specification 3GPP TS 34.171 [3] defines test tolerances. These test tolerances are individually calculated for each test. The test tolerances are then added to the limits in the present document to create test limits. The measurement results are compared against the test limits as defined by the shared risk principle.

Shared Risk is defined in ETR 273-1-2 [7], subclause 6.5.