Wireless Communication Node CORESET Pools for Beam Failure Recovery
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Solution Overview
Problem
The existing NR system faces challenges with resource utilization and latency due to half-duplex mode in TDD spectrum, leading to increased interference and decreased efficiency, and there is a need to determine an effective reference signal resource for radio link quality evaluation.
Innovation Solution
A method and apparatus for wireless communication that utilizes a unified design for different duplex modes, including flexible duplex, half-duplex, and full-duplex scenarios, by configuring CORESET pools and RS resource sets based on TCI states and air interface resources to evaluate radio link quality and trigger beam failure recovery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If half-duplex mode is used in TDD spectrum, then self-interference is avoided and cross-link interference is alleviated, but resource utilization rate decreases and latency increases
Solution Approach 1:
The patent implements dynamic duplex mode selection where the base station can flexibly switch between half-duplex and full-duplex modes based on traffic conditions and interference levels. The system dynamically configures time-frequency resources and reference signal patterns to adapt to changing channel conditions, allowing optimization of both interference management and resource utilization in real-time.
Solution Approach 2:
The patent changes key system parameters including duplex mode configuration, reference signal resource allocation, and time-frequency resource partitioning to resolve the contradiction. By adjusting these parameters based on channel quality indicators and traffic demand, the system achieves optimal balance between interference mitigation and resource efficiency.
2Productivity
If full-duplex mode is supported on TDD spectrum, then resource utilization improves and latency decreases, but self-interference and cross-link interference increase
Solution Approach 1:
The patent introduces reference signals as intermediary elements that enable the system to measure and characterize interference conditions. These reference signals serve as mediators between the transmitting and receiving functions, allowing the base station to assess channel quality and interference levels, thereby making informed decisions about when and how to activate full-duplex operations.
Solution Approach 2:
The patent implements feedback mechanisms where the base station monitors channel quality indicators, interference levels, and radio link quality through reference signal measurements. This feedback information is used to dynamically adjust duplex mode configuration and resource allocation, ensuring that full-duplex operations are maintained only when interference levels are acceptable.
3Reliability
If different duplex modes are supported with separate designs, then specific mode performance is optimized, but hardware complexity and costs increase
Solution Approach 1:
The patent designs a universal reference signal framework and resource configuration mechanism that serves all duplex modes (half-duplex, full-duplex, and flexible duplex). The same hardware infrastructure and signal processing chains are used across different modes, with only software-configurable parameters changing. This multi-functional approach eliminates the need for separate hardware designs for each duplex mode, reducing complexity and cost while maintaining mode-specific optimization.
Data Source
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AI summary
Disclosed in the present application are a method and apparatus for a node used for wireless communication. A first node receives a reference information block and a first information block. The reference information block is used for configuring a first CORESET pool on a first BWP, and the first CORESET pool comprises at least one CORESET; a first RS resource set is used for radio link quality evaluation of the first BWP, the first RS resource set depends on a TCI state of a first CORESET group, and the first CORESET group comprises the at least one CORESET in the first CORESET pool; the first information block is used for determining a first time-frequency resource set, and the first time-frequency resource set comprises at least one subcarrier in the first BWP in a frequency domain; and the first CORESET group at least depends on a relationship between an air interface resource occupied by a monitored PDCCH candidate in a CORESET in the first CORESET pool and the first time-frequency resource set.