Beam Information Transfer for RACH-Less Handover Pairing
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Solution Overview
Problem
The handover process in wireless communication networks, particularly in scenarios involving RACH-less handovers, faces challenges in ensuring communication quality due to the inability to perform beam pairing between terminals and network devices without random access.
Innovation Solution
A method and apparatus for transmitting and receiving beam information, where a terminal determines suitable transmission beams and communicates this information to the network device during a RACH-less handover, allowing the network device to use these beams for effective communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If RACH-less handover is performed to avoid random access congestion, then handover efficiency is improved, but beam pairing between terminal and network device cannot be performed, worsening communication quality
Solution Approach 1:
The terminal performs beam measurement and determines suitable transmission beams before the handover is completed. The beam information is prepared in advance and sent to the network device along with the handover confirmation message, enabling the network device to have beam pairing information ready before actual communication begins, thus avoiding the need for random access while ensuring communication quality
Solution Approach 2:
Beam information acts as an intermediary carrier that transfers the beam pairing function from the random access process. By embedding beam information in the handover confirmation message, the patent creates an alternative pathway for beam pairing that bypasses the random access channel while achieving the same communication quality assurance
2Reliability
If random access is performed during handover to ensure beam pairing, then communication quality is maintained, but random access congestion occurs, reducing handover efficiency
Solution Approach 1:
The beam pairing function is extracted from the random access process and integrated into the handover confirmation message exchange. This separation allows handover to proceed without random access while still achieving beam pairing through the embedded beam information, thus eliminating congestion while maintaining communication quality
Solution Approach 2:
Beam measurement and determination are performed in advance during the handover preparation phase. The terminal identifies suitable transmission beams before completing handover, so that when beam information is sent in the handover confirmation message, the network device already has the necessary pairing information, eliminating the need for subsequent random access
Data Source
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AI summary
The present disclosure relates to the technical field of communications, and particularly relates to a beam information sending method, a beam information receiving method, a communication device and a storage medium, The beam information sending method comprises: sending first information to a first cell, wherein the first information is information of at least one transmission beam of the first cell, which transmission beam is determined by a terminal, and the first cell is a cell to which the terminal is handed over on the basis of non-random access handover. According to the present disclosure, when a terminal is handed over to a first cell on the basis of non-random access handover, the terminal may send first information to the first cell, wherein the first information is information of at least one transmission beam of the first cell, which transmission beam is determined by the terminal. Accordingly, it is conducive to ensuring the communication quality of the terminal in the first cell.