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.