Selective SSB Search in Frequency-Multiplexed Beam Groups
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Solution Overview
Problem
Future radio communication systems face challenges in enhancing coverage while managing overhead, as narrowing beams for coverage enhancement increases overhead and can reduce communication throughput.
Innovation Solution
A terminal and base station implementation that allows for selective SSB reception and search methods, including operations for all SSBs and specific SSBs, utilizing frequency division multiplexing and time division multiplexing to optimize SSB detection and reduce unnecessary reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If beams are narrowed for coverage enhancement, then coverage is improved, but overhead increases and communication throughput may be reduced
Solution Approach 1:
The patent segments SSBs into multiple SSB groups, where each group contains SSBs with different beam directions. This segmentation allows the terminal to selectively search for SSBs in specific groups rather than all groups, reducing overhead while maintaining coverage enhancement capabilities through targeted beam searching.
Solution Approach 2:
The patent implements partial action by allowing terminals to search for only specific SSBs within SSB groups rather than all SSBs. This partial searching approach reduces the overhead associated with comprehensive SSB detection while still achieving coverage enhancement through selective beam searching in relevant groups.
2Area of stationary object
If all SSBs are searched for coverage enhancement, then coverage is improved, but latency and power consumption increase
Solution Approach 1:
The patent extracts and identifies specific SSB groups that are relevant for coverage enhancement, allowing terminals to focus their search on these extracted groups rather than processing all SSB groups. This extraction approach reduces the time and computational resources required for SSB detection while maintaining effective coverage enhancement.
Solution Approach 2:
The patent implements partial action by enabling terminals to perform selective searching of SSBs only in identified SSB groups rather than exhaustively searching all SSB groups. This partial searching strategy significantly reduces latency and power consumption associated with comprehensive SSB detection while still achieving the necessary coverage enhancement.
3Area of stationary object
If all SSBs are searched for coverage enhancement, then coverage is improved, but power consumption increases
Solution Approach 1:
The patent extracts and identifies specific SSB groups that are relevant for coverage enhancement, allowing terminals to focus their search on these extracted groups rather than all SSB groups. This extraction approach reduces the power consumption required for SSB detection while maintaining coverage enhancement capabilities.
Solution Approach 2:
The patent implements partial action by enabling terminals to perform selective searching of SSBs only in identified SSB groups rather than exhaustively searching all SSB groups. This partial searching strategy significantly reduces power consumption associated with comprehensive SSB detection while still achieving the necessary coverage enhancement.
Data Source
AI summary
A terminal according to an aspect of the present disclosure includes a control section that determines one of operation for searching SSBs with all SSB indices in a plurality of synchronization signal block (SSB) groups and operation for searching an SSB with a specific SSB index in the plurality of SSB groups, the plurality of SSB groups being frequency division multiplexed, one of the plurality of SSB groups including a plurality of SSBs to be time division multiplexed, and a receiving section that detects one SSB in the plurality of SSB groups. According to an aspect of the present disclosure, it is possible to enhance coverage in consideration of overhead.