Adaptive Beam Selection for mmWave SSB Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In millimeter wave (mmWave) wireless communication systems, the increased signal attenuation poses challenges for efficient transmission of synchronization signal blocks (SSBs), particularly in shared channel environments where beamforming is used, as existing methods lack flexibility in channel sensing and beam selection.
Innovation Solution
A method involving multiple channel access procedures with various sensing beams to determine successful transmission beams for SSBs, allowing for flexible beam selection based on successful channel access, thereby improving the reliability and flexibility of SSB transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beamforming is used to overcome path loss in mmWave communication, then signal attenuation is reduced, but channel access complexity increases due to the need to perform channel access procedures for each beam direction
Solution Approach 1:
The patent divides the channel access process into beam-specific segments. Instead of a single omnidirectional channel access, the system performs separate channel access procedures for each beam direction (e.g., first beam direction and second beam direction). This segmentation allows the system to manage complexity by processing beams independently while maintaining overall reliability through comprehensive channel sensing across all directions.
2Reliability
If SSBs are transmitted repeatedly at predetermined periodicity, then synchronization acquisition is improved, but time efficiency decreases due to repeated transmissions
Solution Approach 1:
The patent introduces dynamic transmission adjustments based on channel access outcomes. When channel access is successful in a particular beam direction, the system can adjust transmission timing and资源配置 dynamically. This allows the system to maintain synchronization reliability while reducing unnecessary repeated transmissions by adapting to actual channel conditions rather than following fixed periodicity alone.
3Adaptability or versatility
If multiple sensing beams are used for channel access, then channel sensing coverage is improved, but the number of procedures to perform increases
Solution Approach 1:
The patent segments the sensing beam set into distinct groups (e.g., first sensing beam and second sensing beam corresponding to different beam directions). Each segment is processed through separate channel access procedures, allowing the system to achieve comprehensive coverage by combining results from multiple segments while managing the increased number of procedures through structured organization and parallel processing capabilities.
Data Source
AI summary
Embodiments of the present disclosure relate to a method, device, and medium for communication. A communication method comprises performing a plurality of channel access procedures on a shared channel with a plurality of sensing beams, each of the plurality of sensing beams being associated with at least one of a plurality of signals, the plurality of signals comprising a plurality of synchronization signal blocks (SSBs). The method also comprises in accordance with a determination that at least one of the plurality of channel access procedures is successful, determining at least one transmission beam for at least one of the plurality of signals based on at least one of the plurality of sensing beams with which the at least one successful channel access procedure is performed; and transmitting the at least one signal on the shared channel using the at least one transmission beam.