Terminal Beam Correlation Management via Hamming Distance
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Solution Overview
Problem
Existing beam-based communication systems face challenges in selecting beams that meet network device requirements, particularly in ensuring a low correlation between backup beams to maintain communication integrity, as current methods relying on RSRP often result in high correlation between reported beams.
Innovation Solution
A resource management method where the terminal device determines the correlation between beams based on index numbers and reports beams to the network device, with configuration information from the network device specifying a Hamming distance threshold to ensure the desired correlation, allowing for effective beam pairing and backup beam selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal device selects beams based on RSRP, then the beam quality is improved, but the correlation between beams becomes high
Solution Approach 1:
The patent changes the selection parameter from RSRP alone to a composite criterion that includes both RSRP and beam index Hamming distance. The terminal device calculates Hamming distance between beam indices and uses this as an additional parameter to filter beam selections, ensuring that selected beams meet both quality and diversity requirements
Solution Approach 2:
The network device pre-configures beam parameters including Hamming distance thresholds and beam index mappings before beam selection. The terminal device pre-calculates Hamming distances between candidate beams and uses this preliminary information to make informed selection decisions that satisfy correlation requirements
2Productivity
If beams with high RSRP are selected, then communication performance is improved, but the backup beam reliability is reduced
Solution Approach 1:
The patent introduces Hamming distance as a new selection parameter alongside RSRP. By requiring that selected beams have both high RSRP and sufficient Hamming distance from each other, the system ensures that backup beams are sufficiently different from primary beams, providing reliable alternatives when primary beams fail
Solution Approach 2:
The patent segments the beam selection process into multiple stages: first filtering beams by RSRP threshold, then further filtering by Hamming distance criteria. This segmentation allows the system to independently optimize for both communication performance and backup reliability without compromising either aspect
Data Source
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AI summary
This application provides a resource management method, including: receiving, by a terminal device, a plurality of beams sent by a network device; determining, by the terminal device, a correlation of at least two beams in the plurality of beams based on index numbers of the at least two beams; and reporting, by the terminal device, the at least two beams to the network device, where a correlation between any two of the at least two beams meets a requirement of the network device. The method can enable the terminal device to report a beam to the network device based on a correlation requirement of the network device.