Peer-to-Peer Beamforming Training Overhead Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
High throughput wireless communication systems, such as IEEE 802.11 ad, face increased training overhead as the number of peer-to-peer communications grows, necessitating a reduction in peer-to-peer training overhead to maintain efficiency.
Innovation Solution
A processing system generates signals to enable wireless nodes to determine preferred beam patterns, allowing for efficient communication through these patterns, utilizing techniques like beamforming and Golay sequences, regardless of operation mode, to reduce training time and improve signal quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If dedicated time-intervals are allocated for each peer-to-peer pair to train, then training accuracy is improved, but training overhead increases significantly as the number of peer-to-peer communications grows
Solution Approach 1:
The patent merges multiple peer-to-peer training operations into a single shared time-interval. Instead of allocating separate time-intervals for each peer-to-peer pair, multiple pairs simultaneously perform training during the same time-interval, thereby reducing training overhead while maintaining training accuracy through proper signal management and beam pattern determination.
2Productivity
If the number of peer-to-peer communications increases, then system capacity is improved, but training overhead increases
Solution Approach 1:
The patent enables multiple peer-to-peer communication pairs to share the same training time-interval, allowing system capacity to scale without proportionally increasing training overhead. This is achieved by having multiple pairs train simultaneously during shared time-intervals rather than requiring dedicated intervals for each pair.
Solution Approach 2:
The patent creates a universal training mechanism where a single time-interval serves multiple peer-to-peer pairs simultaneously. The training procedure becomes multi-functional, supporting any number of peer-to-peer communications during the same time-interval through beam pattern determination and signal sharing.
3Reliability
If beamforming training is performed for each peer-to-peer pair, then signal quality is improved, but MAC efficiency decreases due to increased overhead
Solution Approach 1:
The patent merges beamforming training operations of multiple peer-to-peer pairs into shared time-intervals. Each pair still performs complete beamforming training to ensure signal quality, but the training occurs simultaneously with other pairs during the same time-interval, preventing MAC efficiency degradation from increased overhead.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A method, an apparatus, and a computer program product operable in a wireless communication system are provided in which a first signal is generated for transmission to a wireless node to enable the wireless node to determine a first preferred beam pattern. A second preferred beam pattern is determined from a second signal received from the wireless node. The apparatus communicates with the wireless node through at least one of the first or second preferred beam pattern.