Separate PSS and SSS Burst Transmission for Reduced Measurement Gap
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Solution Overview
Problem
In wireless communication systems, the measurement gap during which user equipment (UE) suspends communications with a serving network node results in service disruption, increased data-transfer latencies, and reduced data throughput, primarily due to the overlapping transmission of primary synchronization signal (PSS) and secondary synchronization signal (SSS) bursts.
Innovation Solution
Transmitting the PSS burst separately from the SSS burst, with non-overlapping time domains, to reduce the measurement gap and minimize service disruption, thereby enhancing data throughput and reducing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If PSS and SSS bursts are transmitted overlapping in time domain, then synchronization signal transmission is simplified, but measurement gap duration increases causing service disruption
Solution Approach 1:
The patent divides the previously combined PSS-SSS burst into two separate transmissions: a first burst containing only the PSS and a second burst containing only the SSS. This segmentation allows the UE to process each synchronization signal independently, reducing the overall measurement gap duration while maintaining comprehensive synchronization functionality.
2Device complexity
If PSS and SSS bursts are transmitted overlapping in time domain, then transmission structure is simplified, but data throughput decreases due to service disruption
Solution Approach 1:
By segmenting the synchronization signal transmission into separate PSS and SSS bursts with non-overlapping time domains, the patent minimizes the measurement gap duration. This allows the UE to resume data transmission sooner, thereby improving overall data throughput while maintaining the necessary synchronization functions.
3Device complexity
If PSS and SSS bursts are transmitted overlapping in time domain, then signal transmission is simplified, but latency increases due to service suspension
Solution Approach 1:
The patent implements segmentation by transmitting PSS and SSS in separate non-overlapping bursts, allowing the UE to complete synchronization faster and resume normal data transmission with reduced latency. The UE can process the PSS first, then quickly transition to receiving the SSS, minimizing the total time the system remains in a synchronized but non-data-transmitting state.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may transmit, based at least in part on a first transmission, a primary synchronization signal (PSS) burst. The network node may transmit, based at least in part on a second transmission, a secondary synchronization signal (SSS) burst, the second transmission being non-overlapping in a time domain with the first transmission. Numerous other aspects are described.