Beam Correspondence Reporting for Wireless Terminal Devices
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Solution Overview
Problem
In multi-beam communication systems, terminal devices face a heavy burden due to the need to select and train multiple beams for uplink and downlink transmissions, leading to significant signaling overhead and resource inefficiency.
Innovation Solution
The method involves determining and transmitting beam correspondence information between uplink and downlink beams by the terminal device to the network device, allowing the network device to configure only one training beam when correspondence is established, thereby reducing the burden on the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple beams are trained through beamforming in a multi-beam system, then communication coverage and directionality are improved, but the burden on terminal devices and network devices increases significantly
Solution Approach 1:
The patent applies preliminary action by having the terminal device determine beam correspondence information in advance and report it to the network device before actual data transmission. This allows the network device to pre-configure appropriate beams based on the reported correspondence, avoiding the need for extensive real-time beam training and selection during data transmission, thereby reducing the computational burden on both terminal and network devices while maintaining comprehensive coverage.
2Loss of time
If beam correspondence information is determined and reported by the terminal device, then the number of training beams configured by the network device is reduced, but the terminal device must perform additional determination and reporting operations
Solution Approach 1:
The patent applies self-service by enabling the terminal device to autonomously determine its own beam correspondence information and report it to the network device. The terminal device performs self-assessment of its beam characteristics and capabilities, then communicates this information to the network device, which uses it to reduce training beam configurations. This self-service approach shifts part of the beam management responsibility from the network device to the terminal device, reducing overall system training time while distributing operational burden.
Data Source
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AI summary
Embodiments of the present application provide a communication method, a terminal device and a network device. The method includes: a terminal device determines beam correspondence information, where the beam correspondence information indicates a beam correspondence between an uplink transmitting beam and a downlink receiving beam of the terminal device; and the terminal device transmits the beam correspondence information to a network device. The communication method according to embodiments of the present invention can alleviate the burden on devices.