Beam Failure Recovery Resource Selection in 5G Multi-Panel Systems
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Solution Overview
Problem
In 5G NR systems, the existing beam failure recovery mechanisms are inadequate for multi-base-station and multi-antenna-panel scenarios, as they fail to effectively select radio resources for beam failure recovery requests, leading to inefficient recovery processes.
Innovation Solution
A method is proposed where a first index and a second index are used to determine radio resources for beam failure recovery requests based on the quality of reference signals, allowing for the selection of appropriate radio resources for each base station or antenna panel, ensuring rapid recovery by identifying the specific base station or antenna panel with a beam failure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple base stations and antenna panels are deployed to improve communication reliability, then the system can provide better beam failure recovery coverage, but the complexity of selecting appropriate radio resources for beam failure recovery requests increases
Solution Approach 1:
The patent segments the beam failure recovery process by introducing separate indication fields for different base stations and antenna panels. Each base station and antenna panel has dedicated indication resources, allowing independent identification and recovery. This segmentation resolves the contradiction by making the recovery process manageable through division while maintaining overall reliability.
Solution Approach 2:
The patent adds dimensional differentiation by introducing multiple indication fields (first indication field for base station identity, second indication field for antenna panel identity) rather than using a single flat indication mechanism. This dimensional expansion allows the system to handle multiple base stations and antenna panels simultaneously, resolving the complexity issue while improving reliability.
2Ease of manufacture
If existing beam failure recovery mechanisms are used in multi-base-station scenarios, then the implementation is simpler, but the recovery process becomes inefficient and unreliable
Solution Approach 1:
The patent applies local quality by providing differentiated indication mechanisms for different base stations and antenna panels. Each component has its own specific indication field, allowing localized identification and recovery. This resolves the contradiction by making the system adaptable to multi-base-station scenarios while maintaining implementation feasibility through structured local differentiation.
Solution Approach 2:
The patent changes the indication parameters by introducing multiple distinct indication fields (base station identity field, antenna panel identity field) with specific bit allocations. This parameter expansion enables efficient identification in multi-base-station scenarios while maintaining a systematic approach that balances complexity and efficiency.
3Device complexity
If radio resources are not accurately determined for beam failure recovery requests, then the resource allocation is simpler, but the communication reliability deteriorates
Solution Approach 1:
The patent implements preliminary action by pre-configuring indication fields for base station and antenna panel identities before beam failure occurs. These indication fields are prepared in advance with specific bit allocations and mapping relationships, enabling rapid and accurate resource determination when beam failure happens, thus resolving the contradiction between complexity and reliability.
Solution Approach 2:
The patent introduces indication fields as intermediary elements that mediate between the physical layer beam failure detection and the resource allocation decisions. These intermediaries (indication fields) carry specific information about which base station and antenna panel experienced failure, enabling accurate resource determination without excessive complexity.
Data Source
AI summary
Disclosed are a method and a device in a node for beam failure recovery in wireless communication. A first node receives M1 first-type reference signals, receives M2 first-type reference signals, and then transmits a first radio signal on a target radio resource. Measurements for the M1 first-type reference signals are used for generating first radio-link quality, and measurements for the M2 first-type reference signals are used for generating second radio-link quality; the first radio-link quality and the second radio-link quality are used for determining the target radio resource and the first radio signal; the target radio resource is one of a first radio resource, a second radio resource or a third radio resource; the first radio resource and the second radio resource correspond to a first index and a second index respectively; the first index is used for determining the M1 first-type reference signals.