Wireless Communication Spatial Filter Prediction via Target Model
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Solution Overview
Problem
The existing methods for downlink beam management in new radio (NR) systems require terminal devices to traverse all combinations of transmission (Tx) beams and reception (Rx) beams, leading to significant overhead and delay.
Innovation Solution
The proposed solution involves a method where a network device acquires a data set containing identification information or measurement results of spatial filters and inputs this data into a target model to output target information, including identification or measurement results of spatial filters. This process reduces the need for the terminal device to measure all beam pairs, thereby decreasing overhead and delay.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the terminal device traverses all combinations of Tx beams and Rx beams to select optimal beams, then the beam selection accuracy is improved, but the overhead and delay increase significantly
Solution Approach 1:
The network device performs preliminary beam scanning and measurement in advance, collecting beam measurement information before the terminal device needs to select beams. This pre-collected information is then used by the terminal device to quickly determine optimal beams without performing exhaustive traversal, thus reducing delay while maintaining accuracy
Solution Approach 2:
Instead of requiring the terminal device to independently measure all beam combinations, the network device provides copied beam measurement information obtained from its own measurements. The terminal device uses this copied information to infer optimal beam pairs, avoiding redundant measurements and reducing overhead
2Loss of information
If the terminal device traverses all combinations of Tx beams and Rx beams, then complete beam pair information is obtained, but the signaling overhead increases
Solution Approach 1:
The network device extracts and provides only the necessary beam measurement information that the terminal device needs to select optimal beams, rather than requiring the terminal to process all possible beam combination data. This selective information provision reduces signaling overhead while maintaining beam pair information completeness
Solution Approach 2:
The network device performs preliminary processing of beam measurement information and pre-identifies useful beam candidates before transmitting information to the terminal device. This preliminary action filters out redundant information, reducing the quantity of signaling required while ensuring complete beam pair information is available for selection
Data Source
AI summary
Provided is a method for wireless communication, applicable to a network device, the method includes: acquiring a first data set, wherein the first data set includes at least one of identification information of M1 spatial filters or measurement results of the M1 spatial filters, M1 being a positive integer; and inputting the first data set into a target model to output target information, wherein the target information includes at least one of identification information of K spatial filters or measurement results of the K spatial filters, K being a positive integer.