SS Block Offset Signaling for Direct RMSI Location
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Solution Overview
Problem
Existing wireless communication systems waste resources due to unnecessary scanning for synchronization signal blocks that include remaining minimum system information (RMSI), which can be inefficient and costly in terms of device power consumption and network bandwidth.
Innovation Solution
Reusing remaining minimum system information (RMSI) configuration bits to signal the location of synchronization signal blocks, allowing devices to determine the location of a second SS block that includes RMSI based on an offset or indication in a first SS block that does not include RMSI.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If devices perform comprehensive scanning for synchronization signal blocks containing RMSI, then system information acquisition is ensured, but device power consumption increases and network resources are wasted
Solution Approach 1:
The first SS block transmits indication information in advance about the location of the second SS block containing RMSI. This preliminary action allows the UE to directly acquire the location information without performing comprehensive scanning, thereby reducing power consumption while ensuring reliable system information acquisition.
Solution Approach 2:
The first SS block acts as an intermediary that carries indication information about the second SS block's location. This intermediary mechanism enables the UE to efficiently locate the RMSI-containing block without exhaustive scanning, resolving the contradiction between reliable information acquisition and energy consumption.
2Reliability
If devices perform comprehensive scanning for synchronization signal blocks, then complete system information is obtained, but network bandwidth is consumed inefficiently
Solution Approach 1:
The network performs preliminary action by embedding location indication information in the first SS block before the UE needs to acquire RMSI. This eliminates the need for comprehensive scanning, thereby reducing unnecessary network bandwidth consumption while ensuring complete system information is obtained.
Solution Approach 2:
The location indication information is extracted and transmitted separately in the first SS block, allowing the UE to directly obtain the second SS block's location without scanning all possible positions. This extraction approach reduces network bandwidth waste while ensuring reliable system information acquisition.
3Productivity
If RMSI configuration bits are reused to signal SS block location, then resource allocation efficiency is improved, but configuration complexity increases
Solution Approach 1:
Existing RMSI configuration bits in the first SS block are assigned multi-functionality: they continue to indicate RMSI parameters while also encoding the location information of the second SS block. This universal usage improves resource allocation efficiency without adding separate signaling elements, thereby limiting the increase in configuration complexity.
Solution Approach 2:
The interpretation or mapping of existing RMSI configuration bits is changed to simultaneously convey location information. This parameter change approach allows the same bits to serve dual purposes, improving efficiency while avoiding the need for additional configuration elements that would increase complexity.
Data Source
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Figure 3A
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a first synchronization signal (SS) block that does not include remaining minimum system information (RMSI). The first SS block may indicate an offset for obtaining a second SS block that includes RMSI. The UE may determine a location of the second SS block based at least in part on the offset. Numerous other aspects are provided.