Beam Group Reporting for Multi-TRP 5G Operations
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Solution Overview
Problem
In 5G New Radio systems, existing beam management techniques face challenges in efficiently configuring user equipment to report channel measurement resources, leading to increased processing latency, computational complexity, and power consumption, particularly when multiple antenna panels are used for simultaneous reception.
Innovation Solution
The user equipment is configured to select and report groups of channel measurement resources based on specific rules, such as absolute beam group difference values, signal-to-interference-plus-noise thresholds, and antenna panel switching constraints, to optimize beam grouping and reduce reporting overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If user equipment reports all channel measurement resources individually, then measurement precision is improved, but processing latency and reporting overhead increase
Solution Approach 1:
The patent combines multiple channel measurement resources into beam groups, where resources sharing similar beam characteristics are aggregated together. This merging reduces the number of individual reports needed while preserving measurement precision through group-level reporting, directly resolving the contradiction between detailed measurement and reporting latency.
Solution Approach 2:
The patent segments channel measurement resources into distinct beam groups based on spatial domain characteristics. By dividing the full set of resources into manageable groups, the system enables efficient selective reporting where only relevant groups need to be reported, reducing overall processing latency while maintaining measurement accuracy for each segment.
2Adaptability or versatility
If user equipment uses multiple antenna panels for simultaneous reception, then reception capability is improved, but device complexity and power consumption increase
Solution Approach 1:
The patent introduces dynamic antenna panel switching based on beam group reporting results. Instead of continuously operating all antenna panels, the system dynamically activates only the panels needed for current beam groups, reducing device complexity and power consumption while maintaining adaptability when beam conditions change.
Solution Approach 2:
The patent applies local quality optimization by assigning different reception configurations to different beam groups. Each beam group can utilize specific antenna panels optimized for its spatial characteristics, rather than uniformly configuring all panels for all beams, thereby reducing overall complexity while preserving local reception quality.
3Loss of information
If user equipment reports detailed beam information for all resources, then information accuracy is improved, but reporting overhead increases
Solution Approach 1:
The patent extracts and reports only the essential beam grouping information rather than complete individual resource details. By taking out the critical spatial domain characteristics that define beam groups and reporting those selectively, the system maintains information accuracy for beam identification while significantly reducing reporting overhead through compact group-level representations.
4Measurement precision
If network configures detailed measurement parameters for each resource, then measurement accuracy is improved, but processing complexity increases
Solution Approach 1:
The patent applies universal configuration parameters at the beam group level that can be applied to multiple resources within each group. Instead of configuring unique parameters for every individual resource, the same group-level parameters serve multiple resources, reducing processing complexity while maintaining measurement accuracy through the grouped approach.
Data Source
AI summary
Methods and apparatus, including computer program products, are provided for beam group reporting. In some example embodiments, there may be provided a method that includes receiving, at the user equipment, configuration information to configure the user equipment to report information for beam grouping on measurements on at least one group of channel measurement resources; selecting, by the user equipment, at least one group from a plurality of groups of channel measurement resources, the selecting based on at least one rule provided by the configuration information; and reporting, to a network, information regarding the selected at least one group for the beam grouping. Related systems, methods, and articles of manufacture are also disclosed.