Multi-Beam Wireless Communication Using Receiver Assistance
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing multi-beam communications due to the lack of effective receiver assistance information, leading to suboptimal performance in scheduling and resource allocation, especially in scenarios with multiple beams and varying interference conditions.
Innovation Solution
The implementation of a system that uses receiver assistance information to determine the feasibility of multi-beam communications by receiving scheduling information from base stations and adjusting communication policies to fulfill, partially fulfill, or not fulfill grants based on the assistance information, allowing for adaptive communication strategies across multiple beams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If multi-beam communication is implemented without receiver assistance information, then system complexity is reduced, but communication efficiency and spectral usage deteriorate
Solution Approach 1:
The patent introduces receiver assistance information as an intermediary element that mediates between the transmitter and receiver in multi-beam communications. This information, provided by the receiver about preferred beams and interference conditions, enables optimized scheduling without requiring complex full-duplex coordination, thus improving communication efficiency while maintaining manageable system complexity
Solution Approach 2:
The patent implements feedback mechanisms where receivers provide assistance information about beam preferences, interference levels, and channel conditions back to transmitters. This feedback loop enables dynamic optimization of multi-beam communications, allowing the system to adapt to changing conditions and improve spectral usage without proportionally increasing system complexity
2Productivity
If receiver assistance information is used for multi-beam communication optimization, then spectral usage improves, but device complexity increases
Solution Approach 1:
The patent segments the multi-beam communication system into independent beam evaluations, where receiver assistance information is generated and processed for each beam separately. This segmentation allows the system to optimize spectral usage on a per-beam basis using manageable complexity, avoiding the need for complex full-system optimization algorithms
3Productivity
If grants are always fulfilled according to scheduling information, then resource allocation efficiency is maximized, but reliability deteriorates under interference
Solution Approach 1:
The patent applies partial action by allowing grants to be partially fulfilled based on receiver assistance information. When interference conditions are detected, the system can partially fulfill grants on affected beams while maintaining transmissions on unaffected beams, rather than completely abandoning the grant. This maintains resource allocation efficiency while improving reliability under interference conditions
Solution Approach 2:
The patent introduces dynamic grant fulfillment based on real-time receiver assistance information. The system transitions from static all-or-nothing grant fulfillment to dynamic partial fulfillment, where the degree of grant fulfillment adapts to current interference conditions and beam quality, thereby maintaining both efficiency and reliability
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from one or more base stations, scheduling information for a multi-beam communication using a set of beams between the UE and the one or more base stations. The UE may perform, with the one or more base stations, the multi-beam communication based at least in part on: receiver assistance information for one or more beams in the set of beams associated with the multi-beam communication, and a policy to fulfil a grant according to the scheduling information, partially fulfil the grant according to the scheduling information, or not fulfil the grant according to the scheduling information using the receiver assistance information. Numerous other aspects are described.