PUSCH Occasion Bandwidth Thresholds for RedCap UE Support
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Solution Overview
Problem
The challenge of achieving coexistence and interoperability between RedCap UEs and other types of UEs within a wireless communication system, while minimizing hardware complexity and costs, and ensuring system compatibility and performance.
Innovation Solution
A method and apparatus for configuring PUSCH occasions in wireless communication systems that support RedCap UEs, involving the provision of target information based on bandwidth requirements, ensuring that each PUSCH occasion's bandwidth does not exceed a certain threshold, and allowing flexible base station configurations with reduced control signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If target information is provided for all PUSCH occasions, then system performance is enhanced, but control signaling overhead increases
Solution Approach 1:
The patent extracts and provides target information only for PUSCH occasions that have bandwidth greater than the first bandwidth threshold. For PUSCH occasions with bandwidth less than or equal to the threshold, no target information is provided, as these can be handled using default configurations. This selective extraction reduces control signaling overhead while maintaining system performance for occasions that truly need enhanced configuration.
Solution Approach 2:
Instead of providing target information for all PUSCH occasions (excessive action), the patent applies partial action by providing target information only for a subset of PUSCH occasions that exceed the bandwidth threshold. This partial approach optimizes the balance between system performance enhancement and control signaling overhead reduction.
2Adaptability or versatility
If PUSCH occasion bandwidth is restricted to meet RedCap UE requirements, then RedCap UE compatibility is improved, but configuration flexibility is reduced
Solution Approach 1:
The patent segments PUSCH occasions into two categories: those with bandwidth greater than the first bandwidth (requiring target information) and those with bandwidth less than or equal to the first bandwidth (using default configuration). This segmentation allows RedCap UEs to operate with limited bandwidth capabilities while full-capability UEs can utilize wider bandwidths, thus improving RedCap UE compatibility without unnecessarily restricting overall system configuration flexibility.
Solution Approach 2:
The patent changes the bandwidth parameter threshold to differentiate between RedCap UE-capable and full-capability PUSCH occasions. By setting a first bandwidth threshold, the system can adapt configurations based on UE capabilities, improving RedCap UE compatibility while maintaining configuration flexibility for other scenarios through the target information mechanism.
3Adaptability or versatility
If diverse UE types are supported in the same system, then system adaptability is improved, but hardware complexity increases
Solution Approach 1:
The patent implements a universal configuration mechanism where a single system can support multiple UE types (RedCap UEs, full-capability UEs, and UEs with intermediate capabilities) through the use of first information and conditional target information. The base station can dynamically adjust configurations based on UE capability indications, allowing one system to serve multiple functions without requiring separate hardware configurations for different UE types, thus improving system adaptability while avoiding increased hardware complexity.
Data Source
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AI summary
The present application discloses a method and apparatus used in a node for wireless communication. A first receiver receives first information, the first information being used for determining a first PUSCH opportunity set, and the first PUSCH opportunity set comprising at least one PUSCH opportunity; and when target information is provided, the target information is received, the target information comprising information used for configuring at least one PUSCH opportunity. For a first node, the requirement for target information provision is related to a bandwidth occupied by at least one PUSCH opportunity in the first PUSCH opportunity set; if a bandwidth occupied by each PUSCH opportunity in the first PUSCH opportunity set is greater than a first bandwidth, the target information is provided to correspond to the requirement of at least the first node; the first bandwidth is not less than the size of one PRB.