User Equipment Beam Grouping for Efficient Downlink Selection
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Solution Overview
Problem
The challenge in wireless communication systems using beamforming technology is the efficient selection and reporting of candidate transmit beams by user equipment, as well as the network side device's ability to inform the user equipment of the appropriate transmit beam for downlink information transmission.
Innovation Solution
The user equipment selects and reports multiple groups of transmit beams to the network side device, allowing simultaneous reception of downlink information, while the network side device selects a group of transmit beams for efficient downlink information transmission, reducing signaling overhead and improving beam selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the user equipment reports multiple candidate transmit beams individually, then the network side device can select the appropriate transmit beam, but the signaling overhead increases
Solution Approach 1:
The patent segments the beam reporting process into two parts: the user equipment reports multiple candidate transmit beams grouped in sets, and the network side device selects from these pre-grouped candidates. This segmentation allows efficient reporting of multiple beams without excessive signaling overhead by organizing beams into manageable groups that can be reported compactly.
Solution Approach 2:
The user equipment performs preliminary action by pre-selecting and reporting multiple candidate transmit beams before the actual downlink transmission. This preliminary beam selection and reporting enables the network side device to have multiple options ready, reducing the need for iterative signaling and improving overall communication efficiency.
2Productivity
If the user equipment reports multiple groups of transmit beams, then the beam selection efficiency improves, but the complexity of beam management increases
Solution Approach 1:
The patent divides the K transmit beams into multiple groups, where each group contains N transmit beams. The user equipment selects G groups from these K beams and reports them to the network side device. This segmentation into groups of beams simplifies the management complexity while maintaining high beam selection efficiency, as the network device only needs to select from pre-organized groups rather than individual beams.
Solution Approach 2:
The patent introduces dynamic parameters K, N, and G that can be configured according to different communication scenarios. The number of candidate beams (K), beams per group (N), and groups to report (G) can be adjusted based on channel conditions, traffic requirements, and device capabilities, providing flexible beam management that adapts to varying system demands.
3Productivity
If the network side device selects transmit beams from reported groups, then the downlink transmission efficiency improves, but the processing complexity at the network side increases
Solution Approach 1:
The user equipment performs preliminary beam selection and reporting, providing the network side device with a reduced set of candidate beams (G groups out of K total beams). This preliminary filtering action significantly reduces the search space for the network device, improving downlink transmission efficiency while keeping the processing complexity manageable by only evaluating a subset of pre-selected candidate beams.
Data Source
AI summary
The present invention relates to a user equipment, an electronic device, a wireless communication method, and a storage medium. The user equipment according to the present invention comprises a processing circuit configured to: select G transmit beam groups from K transmit beams of a network side device; and sending information about the selected G transmit beam groups to the network side device, wherein each of the G transmit beam groups comprises N transmit beams, the user equipment is capable of simultaneously receiving downlink information that the network side device sends by using the N transmit beams, and K, N, G are all integers greater than 1. The use of the user equipment, the electronic device, the wireless communication method, and the storage medium according to the present invention can improve beam selection process in a system that uses a beamforming technique.