name: CRS
full_form: Customized Ringing Signal
context: e.g., cell search/mobility, time/frequency synchronization, channel estimation, and radio resource management. The Work Item on UE requirements for network-based CRS interference enabled a cell to transmit over a reduced bandwidth (6 centre PRBs) when there is no need for its CRS or the network load is not high, which allows to adapt the CRS bandwidth in cells, e.g., to: - reduce the interference floor in LTE networks, - facilitate using higher-order modulation schemes (e.g., 256QAM or above) over larger parts of the radio network coverage, - save energy in BS, - save energy in UE capable of network-based CRS interference mitigation which can optimize their DRX operation according to the scenarios specified in TS 36.133, Clause 3.6.1.1. If network-based CRS interference mitigation is enabled in a cell, then the UE capable of network-based CRS interference mitigation can assume that: - CRS is transmitted over full bandwidth of the cell during active time periods (T1), during which the
description: Customized Ringing Signal (CRS) is a technology feature in LTE networks that allows for the adaptation of the CRS bandwidth in cells to mitigate interference, facilitate higher-order modulation schemes, save energy in base stations and user equipment, and optimize discontinuous reception (DRX) operation.
explanation: The context describes CRS as a feature within LTE networks designed to improve performance through various technical mechanisms like interference mitigation and resource optimization. This clearly places it under the category of Technology.
section_title: 13.3	UE requirements for network-based CRS interference mitigation for LTE
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