Synchronization Signal Pairing for Interference Reduction
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Solution Overview
Problem
Wireless communication networks face interference issues due to the increasing demand for mobile broadband access, leading to degraded performance from transmissions by neighbor base stations and other wireless RF transmitters, which affects both downlink and uplink communications.
Innovation Solution
The implementation of a system that includes a processor configured to receive bitmap information indicating the times for transmission of synchronization signal physical broadcast channel (SSB) blocks from a second network node, allowing for the generation of measurement information to improve synchronization and reduce interference by pairing SSB blocks transmitted in specific beam directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple beams are used for SSB block transmission to increase coverage and capacity, then network capacity and coverage are improved, but interference from neighbor base stations increases and measurement complexity increases
Solution Approach 1:
The patent segments SSB blocks into different groups associated with different beams, and further segments measurement procedures into initial measurement and paired measurement phases. This segmentation allows the UE to measure only relevant SSB blocks for each beam pair, reducing the impact of interference from other beams while maintaining comprehensive coverage.
Solution Approach 2:
The patent applies local quality by associating specific SSB blocks with specific beams and beam directions. Each SSB block is measured with consideration of its spatial characteristics and beam-specific interference conditions. The UE performs measurements tailored to local beam conditions rather than treating all SSB blocks uniformly, thereby optimizing measurement accuracy in the presence of directional interference.
2Measurement precision
If comprehensive SSB block measurements are performed across all beams, then measurement accuracy is improved, but measurement time and processing complexity increase
Solution Approach 1:
The patent performs preliminary action by conducting initial measurements of all SSB blocks to identify candidate blocks and establish beam associations before performing detailed paired measurements. This preliminary phase filters out irrelevant SSB blocks, allowing the UE to focus subsequent measurement resources on promising candidates, thereby maintaining accuracy while reducing overall measurement time.
Solution Approach 2:
The patent applies partial action by performing measurements on a subset of SSB blocks that are most relevant to each beam pair rather than exhaustively measuring all possible combinations. The UE prioritizes measurement of SSB blocks that are likely to provide useful measurement results based on initial assessments, achieving sufficient measurement accuracy without the excessive time cost of complete enumeration.
3Reliability
If continuous monitoring of SSB blocks is performed to maintain synchronization, then synchronization reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic action by organizing SSB block measurements into periodic bursts associated with beam pairs rather than continuous monitoring. The UE performs measurements at specific intervals when SSB blocks are transmitted in paired configurations, allowing the device to enter low-power states between measurement bursts while maintaining synchronization reliability through periodic updates.
Solution Approach 2:
The patent applies self-service by enabling the UE to autonomously identify paired SSB blocks and adjust measurement timing based on detected patterns. The device can adapt its measurement schedule to match actual SSB transmission patterns, reducing unnecessary measurements and power consumption while maintaining reliable synchronization through intelligent self-adjustment.
Data Source
AI summary
This disclosure provides systems, methods, and devices for wireless communication that support synchronization signal pairing. In a first aspect, a first network node includes a memory and at least one processor coupled to the memory, wherein the at least one processor is configured to: receive, from a second network node, an indication of a first quantity of beams, receive, from the second network node, bitmap information including a first bitmap for a first beam of the first quantity of beams and a second bitmap for a second beam of the first quantity of beams, and generate first measurement information based on the bitmap information. Other aspects and features are also claimed and described.