Multicast Control Beam Selection Using Resource-to-Beam Mapping
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently determining and utilizing optimal beams for multicast control information transmission, leading to reduced reliability in receiving multicast signals.
Innovation Solution
A method and apparatus for determining beams by extracting multicast control information from transmission resources and establishing an association relationship between these resources and beams, allowing for improved reliability in multicast signal reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If downlink signals are transmitted through multiple beams at different times and directions, then coverage is increased, but the reliability of receiving multicast control information deteriorates due to difficulty in determining optimal beams
Solution Approach 1:
The network device performs beam determination before transmitting multicast control information by sending downlink reference signals through multiple beams and receiving feedback from terminal devices. This preliminary beam selection ensures that the optimal beam is identified in advance, improving the reliability of subsequent multicast control information transmission while maintaining wide coverage through the multi-beam approach
Solution Approach 2:
The terminal device measures reference signals received from different beams and feeds back beam measurement results to the network device. This feedback mechanism enables the network device to determine the optimal beam for multicast control information transmission, resolving the contradiction between using multiple beams for coverage and selecting a specific beam for reliable reception
Data Source
AI summary
A method for determining a beam is performed by a terminal, and includes: extracting multicast control information from multicast control information transmission resources; and determining a beam corresponding to the multicast control information based on an association relationship between multicast control information transmission resources and beams.