name: POs
full_form: Paging Occasions
context: To avoid possible paging occasion collision and to enhance the likelihood that paging is received successfully for different USIMs, a Multi-USIM UE may need a new 5G-GUTI to modify the timing of the Paging Occasions (POs) for a USIM when the USIM's registration is not emergency registration. When a Multi-USIM UE needs a 5G-GUTI assignment, it performs a Mobility Registration Update without any specific indication (i.e. it is using a normal Registration procedure). This triggers the AMF to allocate a new 5G-GUTI and provide it to the Multi-USIM UE in the Registration Accept message. NOTE: It is recommended to avoid excessive signalling load from UE due to this procedure.
description: Paging Occasions (POs) refer to specific timing instances when a network initiates paging procedures to locate and connect with user equipment (UE). In the context of Multi-USIM UEs, POs are crucial for managing different USIM registrations and avoiding potential collisions that could lead to unsuccessful paging. The procedure involves the UE performing a Mobility Registration Update without specific indication, triggering the Access and Mobility Management Function (AMF) to allocate a new 5G-GUTI and provide it in the Registration Accept message.
explanation: POs are classified as a Procedure because they involve a sequence of operations between the network and UE to manage paging timing and avoid collisions. This is particularly relevant in scenarios involving Multi-USIM UEs, where efficient management of different USIM registrations is necessary for successful communication.
section_title: 5.38.6 Paging Timing Collision Control
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biotag_Description: B-Procedure,I-Procedure,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-Technology,O,B-Procedure,O,O,O,O,O,B-Device,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,B-Network Function,I-Network Function,I-Network Function,I-Network Function,I-Network Function,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O