name: PCAP
full_form: Position Calculation Application Part
context: The test case includes two tests. Test 1 is designed for the scenario where the UE receives OTDOA assistance data with cells only on SCC2, and the UE is expected to report RSTD measurements performed on SCC2 only. Test 2 is designed for the scenario where the UE receives OTDOA assistance data with cells on PCC, SCC1 and SCC2, and the UE is expected to report RSTD measurements performed on PCC, SCC1 and SCC2. Each test consists of three consecutive time intervals, with duration of T1, T2 and T3. Cell 1 is active in T1, T2 and T3, Cell 2 is active only in T2 and T3, Cell 3 is active only during T2 and T3, and Cell 4 is active only during T2. The beginning of the time interval T2 shall be aligned 5 ms before the first PRS positioning subframe of a positioning occasion in the OTDOA assistance data reference cell, where 5 ms is the necessary test tolerance. Cell 1 transmits PRS in T2, Cell 2 transmits PRS only in T3, Cell 3 transmits PRS only in T3, and Cell 4 transmits PRS only in T2.
description: The Position Calculation Application Part (PCAP) is a set of messages used in the context of positioning methods in the Universal Terrestrial Radio Access Network (UTRAN). Specifically, it involves communication between the Serving RNC (SRNC) and the Standalone Serving Mobile Location Centre (SAS) for location services. The PCAP messages include Position Activation Request, Position Activation Failure, Abort, and Position Parameter Modification, which are used to initiate, control, and terminate positioning procedures.
explanation: The context provided clearly indicates that PCAP is related to a set of messages exchanged between network components (SRNC and SAS) for positioning purposes. The mention of specific message names such as 'PCAP Position Activation Request', 'PCAP Abort', and others solidifies the classification of PCAP under the entity type 'Message'. This categorization aligns with how these terms are described within the context, emphasizing their role in signaling and communication during location services.
section_title: 7.3.4.2	SAS Centric Mode
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