Beamforming Information Interaction for Wireless Handover Latency
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Solution Overview
Problem
Current wireless communication systems face long handover latency due to the need for re-measuring beams when a terminal moves between cells, which affects handover efficiency.
Innovation Solution
A method for beamforming information interaction where a network device receives and configures terminal settings based on beam measurement information from adjacent network devices, allowing for pre-configuration and improved handover efficiency by exchanging measurement configuration information and performing beam measurements in advance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam re-measurement is performed when terminal moves between cells, then handover reliability is improved, but handover latency increases
Solution Approach 1:
The patent applies preliminary action by having the source base station obtain beam measurement information from the target base station before handover occurs. The terminal is configured with target beam information in advance through RRC signaling, so that when handover happens, the terminal can immediately use the pre-configured beam information without performing time-consuming beam measurement and reporting, thus reducing handover latency while ensuring reliability
Solution Approach 2:
The patent extracts the beam measurement and reporting process from the handover execution phase. By obtaining beam measurement information from target base station in advance and configuring it to the terminal before handover, the complex measurement and reporting procedures are taken out of the critical handover path, leaving only the essential handover command execution, which significantly reduces handover latency
Data Source
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AI summary
Disclosed are a beamforming information interaction method and a network device. The method comprises: a first network device receiving first beamforming information sent by a second network device, wherein the first network device is a network device corresponding to a serving cell where a terminal is currently located, the second network device is a network device adjacent to the first network device, and the first beamforming information is information related to beam measurement of the second network device; and the first network device configuring the terminal according to the first beamforming information. In the beamforming information interaction method of the present application, beamforming information is interacted between a network device of a current serving cell and a network device adjacent thereto, and, where a terminal is moved, the currently served network device can configure the terminal in advance according to related information about beam measurement of the adjacent network device, so that the switching efficiency can be improved.