Adaptive Blind Detection Limits for 5G NR Control Channels
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Solution Overview
Problem
Current wireless communication systems, particularly in 5G NR, face challenges in dynamically adjusting blind detection limits for control channels, leading to inefficient power consumption and monitoring complexity, as statically configured limits do not account for varying power levels and processing capabilities of user equipment (UE).
Innovation Solution
Implementing adaptive control channel blind detection limits, where the base station determines and transmits appropriate blind detection limits to the UE based on its power level and capabilities, allowing for dynamic configuration to reduce monitoring complexity and conserve power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If statically configured blind detection limits are used for control channels, then device complexity is reduced, but power consumption cannot be optimized and monitoring efficiency deteriorates
Solution Approach 1:
The patent applies dynamics by transitioning from static blind detection limits to dynamic, adaptive limits that change based on UE power status and processing capabilities. The base station determines blind detection limits dynamically according to the UE's current power level, allowing the system to adapt to varying energy constraints without requiring complex reconfiguration protocols.
2Reliability
If higher blind detection limits are used to ensure reliable control channel detection, then reliability is improved, but power consumption and monitoring complexity increase
Solution Approach 1:
The patent applies parameter changes by adjusting blind detection limits as a variable parameter based on UE power status. Instead of using fixed high limits that guarantee detection but consume excessive power, or low limits that save power but risk detection failure, the system dynamically changes the detection limit parameter to match the UE's current power capabilities, optimizing the balance between reliability and energy consumption.
3Use of energy by moving object
If adaptively configured blind detection limits are implemented, then power consumption is reduced and system efficiency is improved, but base station processing complexity increases
Solution Approach 1:
The patent applies self-service by having the UE report its own power status and processing capabilities to the base station, which then automatically determines appropriate blind detection limits. This eliminates the need for complex base station algorithms to predict UE capabilities, as the UE essentially configures its own operational parameters through capability reporting, reducing base station processing complexity while enabling adaptive power management.
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for blind decoding and channel estimation (BD/CE) limitations and configuration of new radio (NR) physical downlink control channel (PDCCH) repetition. A method that may be performed by a user equipment (UE) includes receiving, from a base station, an indication of at least one blind detection limit for detecting a control channel from a set of blind detection limits and monitoring for the control channel based on the received indication of the at least one blind detection limit for detecting the control channel.