Cross-Carrier Beam Update Association to Cut Signaling Delay
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Solution Overview
Problem
Conventional beam management in high-frequency communication systems incurs significant signaling overheads and delays due to the need for individual beam updates on multiple component carriers (CCs) using the same or different analog beams.
Innovation Solution
A method for updating beam information across multiple CCs by associating them with a single CC, allowing beam update information from one CC to be used for all associated CCs, reducing redundant signaling and configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If beam update information is sent on all CCs individually, then each CC can be updated accurately, but signaling overheads increase hugely
Solution Approach 1:
The patent combines beam update information for multiple CCs into a single notification message. When a beam change occurs on one CC, the network device sends a unified beam update notification that includes identifiers of multiple CCs, allowing the terminal device to update beam information for all associated CCs simultaneously through one signaling operation.
Solution Approach 2:
The beam update notification is designed to serve multiple CCs universally. A single notification message can trigger beam updates across multiple component carriers by including a list of CC identifiers, making the signaling mechanism multi-functional and applicable to various CC combinations without requiring separate dedicated signaling for each CC.
2Measurement precision
If beam update information is sent on all CCs individually, then each CC can be updated accurately, but delay of beam indication increases
Solution Approach 1:
The patent merges multiple beam update operations into a single simultaneous update process. By including multiple CC identifiers in one notification message, the terminal device receives and processes all beam update information at the same time, eliminating sequential processing delays that would occur with individual CC updates.
Solution Approach 2:
The network device prepares the beam update notification in advance by compiling a list of all CCs that require beam updates before sending the notification. This preliminary preparation ensures that when the notification is transmitted, the terminal device can immediately execute all beam updates without waiting for separate notifications for each CC.
3Quantity of substance
If beam configurations of all CCs are made the same, then beam management overheads are reduced, but adaptability to different CC requirements decreases
Solution Approach 1:
The patent segments the beam update notification into two parts: a common beam configuration applicable to all CCs and specific CC identifiers indicating which CCs should apply the update. This segmentation allows the system to maintain common beam parameters across multiple CCs while still enabling selective application to specific CCs based on their individual requirements.
Solution Approach 2:
The patent applies local quality by allowing different CCs to selectively apply the beam update based on their specific needs. Each CC can determine whether to adopt the beam configuration based on its local characteristics and requirements, rather than forcing all CCs to use identical beam configurations regardless of their individual performance needs.
Data Source
AI summary
The present disclosure relates to methods for updating beam information and communications apparatuses. One example method includes receiving beam configuration information and indication information, where the beam configuration information includes beam configuration of a first component carrier (CC), and the indication information indicates an association relationship between one or more second CCs and the first CC, receiving beam update information of the first CC, and updating beam information of the one or more second CCs and beam information of the first CC based on the beam update information of the first CC.