User Equipment Retuning Rules for Wireless Bandwidth Adaptation
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Solution Overview
Problem
Current wireless communication systems, particularly in 5G and NR technologies, face challenges in efficiently managing radio component retuning across different bandwidths and transmission modes, leading to potential interference and reduced performance in supporting diverse quality of service requirements for various communication services.
Innovation Solution
The implementation of rules for user equipment (UE) to determine when to retune radio components, such as phased lock loop and voltage controlled oscillator, based on resource allocation and bandwidth changes, ensuring alignment with base station signals and minimizing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If radio components are retuned frequently to adapt to different bandwidths and transmission modes, then adaptability is improved, but device complexity increases
Solution Approach 1:
The UE autonomously determines when retuning is required by comparing resource allocation information from different subframes against retuning criteria, eliminating the need for network-controlled retuning commands and reducing signaling overhead while maintaining adaptability
Solution Approach 2:
The retuning decision mechanism dynamically adapts to changing transmission conditions by evaluating resource allocation changes between subframes and applying retuning only when necessary, allowing the system to flexibly respond to varying bandwidth and transmission mode requirements
2Ease of operation
If retuning rules are simplified to reduce complexity, then ease of operation is improved, but measurement precision deteriorates
Solution Approach 1:
The retuning determination is segmented into distinct evaluation steps: obtaining resource allocation information, comparing allocations between subframes, evaluating against retuning criteria, and making retuning decisions. This structured approach simplifies operation while maintaining precise detection of alignment changes through systematic comparison
3Reliability
If retuning is performed aggressively to maintain signal alignment, then reliability is improved, but loss of time increases
Solution Approach 1:
The UE proactively determines retuning requirements by comparing resource allocation information before transmission occurs, allowing retuning to be performed at optimal times rather than reactively, thus maintaining signal alignment while minimizing disruption to communication timing
Data Source
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AI summary
Certain aspects of the present disclosure relate to methods and apparatus for applying rules to determine when to retune radio components of a user equipment (UE). Certain aspects of the present disclosure provide a method for wireless communications by a UE. The method includes determining first resources assigned to the UE in a first subframe and second resources assigned to the UE for uplink transmissions in a second subframe. The method further includes determining whether to retune radio frequency (RF) circuitry prior to transmitting in the second subframe based on at least one rule involving an overlap between the first resources and second resources.