Rake Receiver Configuration via UE Capability Reporting
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Solution Overview
Problem
Determining the equalization performance of a rake receiver in wireless communication systems, particularly at high frequencies, is complex and leads to significant power consumption.
Innovation Solution
User equipment (UE) reports capability parameters to a network entity, which determines the rake receiver configuration and modulation and coding scheme (MCS) based on these parameters, reducing complexity and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE determines the equalization performance of the rake receiver, then the transmission parameters can be optimized, but the processing complexity and power consumption increase significantly
Solution Approach 1:
The network entity acts as an intermediary that receives capability parameters from the UE, determines the appropriate rake receiver configuration and equalization impact, and communicates these determinations back to the UE. This transfers the complex processing burden from the UE to the network entity, optimizing transmission parameters without increasing UE processing complexity or power consumption
2Reliability
If the UE determines the equalization performance of the rake receiver, then the transmission parameters can be optimized, but the power consumption increases significantly
Solution Approach 1:
The network entity serves as a mediator that performs the energy-intensive equalization performance determination and transmission parameter optimization calculations. The UE only needs to report its capability parameters, avoiding the high power consumption that would result from performing these calculations locally at the UE
3Device complexity
If the network entity determines the rake receiver configuration based on UE capability parameters, then the UE processing complexity is reduced, but the network entity processing load increases
Solution Approach 1:
The system segments the processing tasks by functional capability: the UE handles lightweight capability parameter reporting, while the network entity handles the computationally intensive determination of rake receiver configuration and equalization impact. This segmentation optimizes the overall system by matching processing requirements to available resources at each node
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. The techniques described herein relate to user equipment (UE) reporting for a rake receiver configuration and setting transmission parameters. The UE receives, from a network entity, a request to provide a report indicative of one or more capability parameters associated with a rake receiver of the UE. The UE transmits, to the network entity, the report based on the one or more capability parameters. The UE receives from the network entity, signaling indicating a configuration to be applied to the rake receiver based at least in part on the report.