Initial BWP Access Check for eRedCap UE Cell Admission
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Solution Overview
Problem
The challenge of managing cell access for enhanced reduced capability user equipment (eRedCap UE) in wireless communication systems, particularly in determining whether the target cell allows access based on the UE's reduced channel bandwidth capabilities, is not adequately addressed by existing technologies.
Innovation Solution
Implementing an initial bandwidth part (BWP) configuration method where the base station sends BWP configuration information to UEs, allowing eRedCap UEs to compare their maximum channel bandwidth with the initial BWP to determine if the target cell allows access, thereby controlling cell access and improving communication reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If eRedCap UEs are allowed to access the target cell without bandwidth verification, then cell access is simplified and ease of operation is improved, but communication reliability deteriorates because UEs with insufficient bandwidth capabilities may fail to communicate properly
Solution Approach 1:
The base station performs preliminary bandwidth verification by comparing the initial BWP with the maximum channel bandwidth supported by the eRedCap UE before allowing cell access. This preliminary check ensures that only UEs with sufficient bandwidth capabilities can access the target cell, thereby guaranteeing communication reliability while maintaining a relatively simple access procedure.
2Reliability
If the base station configures and transmits initial BWP information to all UEs, then access control reliability is improved, but device complexity and information transmission overhead increase
Solution Approach 1:
The base station applies different configuration strategies to different UE types. Initial BWP configuration information is specifically configured for eRedCap UEs based on their reduced capability characteristics, while other UEs follow standard procedures. This localized quality approach ensures reliable access control for eRedCap UEs without unnecessarily increasing complexity for all UE types.
Solution Approach 2:
The patent changes the bandwidth parameter configuration by introducing an initial BWP that is specifically tailored to the reduced bandwidth capabilities of eRedCap UEs. This parameter change allows the system to adapt to different UE capabilities, ensuring that eRedCap UEs receive appropriate bandwidth allocation without requiring complex configurations for all UEs.
Data Source
AI summary
An information transmission method is performed by a base station, and includes: sending initial bandwidth part (BWP) configuration information indicative of an initial BWP of a target cell, wherein the initial BWP is used for a first-type user equipment (UE) to compare the initial BWP with a maximum channel bandwidth supported by the first-type UE, and determine, at least based on a comparison result, whether the target cell allows access of the first-type UE, and the first-type UE is an enhanced reduced capability UE (eRedcap UE).