RedCap UE Frequency Hopping Across Multiple BWPs
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Solution Overview
Problem
Reduced capability (RedCap) user equipment (UE) cannot achieve sufficient frequency diversity through conventional frequency hopping within a limited bandwidth part (BWP), necessitating improved frequency hopping procedures across wider frequency ranges.
Innovation Solution
The method involves configuring user equipment with a first BWP and determining at least one second BWP for frequency hopping based on specific parameters, including a BWP identifier and offset, and utilizing indicators for frequency hopping patterns across BWPs to enhance frequency diversity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If frequency hopping is performed within a limited BWP, then device complexity is reduced, but frequency diversity is insufficient
Solution Approach 1:
The patent divides the frequency spectrum into multiple bandwidth parts (BWPs) and enables frequency hopping across these segmented BWPs. The UE is configured with multiple BWPs (first BWP, second BWP, third BWP) and performs frequency hopping by switching between them according to hopping patterns, thereby achieving wider frequency diversity while maintaining manageable complexity through structured BWP configuration and selection procedures.
2Reliability
If frequency hopping across wider frequency range is implemented, then frequency diversity is improved, but time gaps between hops increase
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple BWPs and their parameters (frequency ranges, hopping patterns, time offsets) before frequency hopping occurs. The network configures the UE with detailed BWP information including frequency domain locations, hopping patterns, and time gap parameters in advance, allowing the UE to quickly switch between pre-prepared BWPs without excessive processing time during actual hopping operations.
Data Source
AI summary
The present application relates to a user equipment, a base station, and a method for frequency hopping. The base station transmits a first configuration of a first BWP and at least one parameter associated with at least one second BWP to the user equipment. The user equipment determines determining the at least one second BWP for frequency hopping according to the first configuration and the at least one parameter.