Wireless Handover via Beam Recovery Resource Sharing
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Solution Overview
Problem
There is a need for a more efficient method to perform handover in wireless communication systems, particularly in terms of resource utilization and speed.
Innovation Solution
The method involves a user equipment (UE) receiving a handover command from a first base station, transmitting a message related to the handover to a second base station using resources allocated for beam recovery, and performing communication based on a determined beam, which may include beam update information or a random access channel (RACH) signal, utilizing either contention-free or contention-based RACH resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dedicated handover resources are allocated separately from beam recovery resources, then handover reliability is improved, but resource utilization efficiency deteriorates
Solution Approach 1:
The patent makes beam recovery resources serve dual purposes: they are used both for beam recovery operations and for handover procedures. The base station configures RACH resources that can be utilized for both beam failure recovery and handover, eliminating the need for separate dedicated handover resources while maintaining reliable handover functionality.
2Productivity
If traditional handover procedures are used without beam determination, then procedural simplicity is maintained, but handover speed deteriorates
Solution Approach 1:
The patent performs beam determination and beam update operations before completing the handover procedure. The UE determines the appropriate beam for the target cell and updates beam information in advance, so that when handover is executed, the beam is already optimized, thereby accelerating the handover process without adding significant procedural complexity.
3Measurement precision
If beam update information is transmitted separately from handover messages, then information accuracy is improved, but signaling overhead increases
Solution Approach 1:
The patent combines beam update information with handover messaging. The beam determination results and beam update information are integrated into the existing handover message flow between UE and base station, allowing accurate beam information to be transmitted without requiring separate dedicated signaling channels, thus reducing overall signaling overhead.
Data Source
AI summary
Disclosed are a method and a device for performing a handover in a wireless communication system.