Multi-Beam Phase Association for Accurate Wireless Beam Allocation
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Solution Overview
Problem
In multi-beam wireless communication systems, phase errors occur due to irregular equiphase contours and factors like phase noise, beam frequency offset, oscillator drift, and antenna reference point location errors, leading to inaccurate beam phase determination and resource allocation.
Innovation Solution
A method and apparatus for obtaining and aggregating beam phase measurements from multiple base stations, generating phase association data, and transmitting assistance data across a radio access network to identify beams with similar initial phases, allowing UEs to prioritize resources based on phase similarity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If phase measurements are obtained from multiple base stations, then measurement precision is improved, but device complexity increases due to the need for phase association data generation and transmission across the network
Solution Approach 1:
The system divides the phase determination task into segments: individual base stations measure local phases, the location management function aggregates these measurements, generates phase association data, and transmits assistance data to UEs. This segmentation allows each component to perform a specialized function, improving overall measurement precision while distributing complexity across the network infrastructure
Solution Approach 2:
The location management function acts as an intermediary that receives phase measurements from multiple base stations, processes this data to generate phase association information, and provides assistance data to UEs. This intermediary role centralizes the complex processing tasks, improving measurement accuracy through coordinated multi-BS measurements while managing network complexity through a dedicated control entity
2Manufacturing precision
If phase association data is generated and transmitted across the network, then resource allocation accuracy is improved, but loss of time occurs due to data transmission and processing delays
Solution Approach 1:
The location management function pre-generates phase association data by aggregating phase measurements from multiple base stations and creates assistance data in advance. This preliminary processing allows UEs to receive ready-to-use phase correlation information, improving resource allocation precision while reducing the time required during actual beam determination operations
Solution Approach 2:
The system creates assistance data that contains phase association information as a simplified representation of the complex multi-BS phase measurements. This copied data structure allows UEs to efficiently access and use phase correlation information without requiring direct access to the original measurement data from multiple base stations, thereby improving allocation accuracy while minimizing transmission and processing time
Data Source
AI summary
Methods, systems, and apparatuses to detect and provide coherent carrier phase measurements in multi-beam wireless communication systems. For example, a computing device may receive a plurality of beam phase measurements for a plurality of signals transmitted using corresponding beams. The plurality of beam phase measurements may have been determined by a plurality of user equipments (UEs) receiving the plurality of signals. The computing device may also determine phase associations between the beams based on the plurality of beam phase measurements. Further, the computing device may generate assistance data based on the phase associations, and may transmit the associate data.