name: EAB
full_form: Extend Access Class Barring
context: from all the cell portions. Issue 5: How to define the AOA measurement in the distributed antenna system? AOA defines the estimated angle of a user with respect to a reference direction and is determined at the BS antenna for an UL channel corresponding to this UE. In distributed antenna scenario, the AOA measurements value may be different in each portion. In some scenario (e.g. the blind-spot coverage scenario), the AOA measurement can be used for some location related function (e.g. use the AOA + Cell id to locate the UE). So, one potential solution for AOA is: Solution: When cell portions are configured in the cell, the AOA can be measured for a specific cell portion or for each cell portion. Issue 6: How to define the Timing related measurement in the distributed antenna system? The timing related measurement includes RX timing Deviation , SFN-SFN observed time difference, Cell Sync Burst Timing, Received SYNC-UL Timing Deviation for 1.28Mcps TDD. The definitions in 25.225 are
description: Extended Access Barring (EAB) is a network-controlled method to selectively restrict access attempts from specific User Equipment (UEs) configured for EAB. This procedure aims to prevent overload of the access and core networks by limiting access from certain UEs during congestion, while allowing other UEs to maintain access.
explanation: The context describes EAB as a method or process implemented in the network to control UE access, indicating it is a sequence of operations (procedure) rather than a protocol, interface, service, etc. The focus on controlling access attempts and preventing overload highlights its procedural nature.
section_title: .2	Extended Access Barring
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