Wireless Beam Scheduling to Avoid Disallowed Beams
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Solution Overview
Problem
Wireless communication systems face interference issues due to simultaneous support of multiple users, which affects coverage and data rate, as existing technologies fail to effectively identify and avoid disallowed beams that cause significant interference.
Innovation Solution
Determining information about disallowed beams and making scheduling decisions to avoid their use, either by users or base stations, through feedback mechanisms and reverse link measurements, allowing for coordinated scheduling across sectors to minimize interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wireless communication systems support multiple users simultaneously, then system capacity and functionality are improved, but interference between users increases and degrades coverage and data rate
Solution Approach 1:
The system segments the available beams into allowed and disallowed categories for each user. By dividing the beam space and assigning specific beams to specific users while avoiding disallowed beams, the system can support multiple users simultaneously without excessive interference, thus improving system capacity while controlling interference levels.
Solution Approach 2:
The patent applies local quality by allowing different users to have different sets of allowed and disallowed beams based on their specific channel conditions and interference environments. Each user receives customized beam assignments tailored to their local communication conditions, enabling simultaneous support of multiple users with optimized performance for each.
2Ease of operation
If traditional scheduling methods are used without beam disallowance information, then scheduling simplicity is maintained, but interference cannot be effectively avoided and performance degrades
Solution Approach 1:
The system performs preliminary action by determining allowed and disallowed beams for each user before the actual scheduling decision. This pre-calculation of beam constraints allows the scheduler to make informed decisions that avoid interference without requiring complex real-time calculations, thus maintaining scheduling simplicity while effectively avoiding interference.
Solution Approach 2:
The patent implements feedback mechanisms where users provide information about their channel conditions and interference environments, which is used to determine their specific allowed and disallowed beams. This feedback loop enables the system to adapt to changing conditions and optimize beam assignments, effectively avoiding interference while keeping the scheduling process manageable.
Data Source
AI summary
In accordance with a method for reducing interference in a wireless communication system, information about at least one disallowed beam corresponding to at least one served user may be determined. Scheduling decisions for served users may be made so as to avoid transmissions via the at least one disallowed beam. Data may be transmitted to users in accordance with the scheduling decisions.