name: HDOP
full_form: Horizontal Dilution Of Precision
context: In the case of test cases in clause 5 (UE supports A-GPS L1 C/A only), the GPS satellite constellation shall consist of 24 satellites. Almanac assistance data shall be available for all these 24 satellites. At least 9 of the satellites shall be visible to the UE (that is above 5 degrees elevation with respect to the UE). Other assistance data shall be available for 9 of these visible satellites. In each test, signals are generated for only a sub-set of these satellites for which other assistance data is available. The number of satellites in this sub-set is specified in the test. The satellites in this sub-set shall all be above 15 degrees elevation with respect to the UE. The HDOP for the test shall be calculated using this sub-set of satellites. The selection of satellites for this sub-set shall be selected consistent with achieving the required HDOP for the test.
description: Horizontal Dilution Of Precision (HDOP) is a parameter used in GPS satellite constellations to calculate the precision of location determination. It is an important factor in determining the accuracy of A-GPS L1 C/A signals.
explanation: The text explicitly states HDOP as a calculated value used within the GPS system for accuracy assessment, classifying it as a parameter.
section_title: B.1.5.1UE supports A-GPS L1 C/A only
biotag_Context: O,O,O,O,O,O,O,O,O,O,O,O,B-Miscellaneous,O,O,O,B-Technology,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O
biotag_Description: B-Parameter,I-Parameter,I-Parameter,I-Parameter,O,O,O,O,O,O,B-Technology,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Miscellaneous,O,O