name: PEI
full_form: Permanent Equipment Identifier
context: for each cell and can be different in different cells. â¢ Total number of subgroups allowed in a cell is up to 8 and represents the sum of CN controlled and UE ID based subgrouping configured by the network; â¢ A UE with CN controlled subgroup ID shall apply CN controlled subgroup ID if there is a corresponding indication allocated in the PEI for the CN controlled subgroup; otherwise, it derives UE ID based subgroup ID if the cell supports only UE ID based subgrouping. PEI associated with subgroups has the following characteristics: â¢ If the PEI is supported by the UE, it shall at least support UE ID based subgrouping method; â¢ PEI monitoring can be optionally limited via system information to the last used cell; â¢ PEI monitoring is based on Type2A-PDCCH Common Search Space (CSS) set for a DCI format 2_7 with CRC scrambled by a PEI-RNTI on the primary cell of the MCG. Each bit of paging indication field of DCI format 2_7 indicates one UE subgroup of a paging occasion; â¢ A PEI occasion
description: The Permanent Equipment Identifier (PEI) is a parameter used in the context of UE power saving enhancements for NR, specifically for subgrouping configurations. It is associated with characteristics such as support for UE ID based subgrouping method, optional limitation of PEI monitoring via system information, and usage in Type2A-PDCCH Common Search Space.
explanation: The provided text explicitly describes the PEI as a parameter used for configuring UE power saving enhancements and subgrouping in NR networks. This classification aligns with the definition of a parameter as a configurable value that influences network behavior.
section_title: 10.1	UE power saving enhancements for NR
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