Dynamic TXOP Allocation for Low Latency P2P Wireless
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Solution Overview
Problem
Current wireless communication systems face challenges in dynamically allocating resources to meet the stringent latency, throughput, and timing requirements of low-latency applications such as real-time gaming and augmented/virtual reality, particularly in peer-to-peer communications within shared wireless networks.
Innovation Solution
A method and device for dynamically scheduling resources by transmitting frames with MAC headers that request specific TXOP allocations for peer-to-peer communications, including duration, bandwidth, and timing parameters, allowing for dynamic resource allocation to ensure compliance with application requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dynamic resource allocation is implemented for P2P communications, then latency and throughput requirements are met, but system complexity increases
Solution Approach 1:
The patent implements dynamic TXOP allocation where the AP adjusts transmission opportunity duration and bandwidth based on real-time QoS requirements of P2P applications. The system transitions from static resource allocation to dynamic allocation that adapts to changing latency and throughput demands, resolving the contradiction by making the system flexible rather than fixed
Solution Approach 2:
The patent changes key parameters including TXOP duration, bandwidth allocation, and timing parameters dynamically based on application requirements. By modifying these parameters in response to QoS demands, the system meets reliability requirements while managing complexity through parameterized control rather than structural changes
2Manufacturing precision
If TXOP allocation requests are transmitted frequently, then resource allocation accuracy improves, but overhead increases
Solution Approach 1:
The patent implements periodic TXOP allocation where resources are allocated at regular intervals rather than continuously. This periodic mechanism provides sufficient allocation accuracy for P2P applications while reducing overhead by avoiding excessive frequent requests, balancing precision with efficiency
Solution Approach 2:
The system performs preliminary resource allocation through TXOP setup phases where parameters are negotiated in advance. This preliminary action establishes resource allocations before actual P2P communications begin, ensuring accuracy while minimizing ongoing overhead during data transmission
Data Source
AI summary
This disclosure provides systems and methods for requesting wireless resources for peer-to-peer (P2P) communications. In some implementations, a wireless communication device transmits a frame over a wireless medium to an access point (AP), the frame including a medium access control (MAC) header carrying a request for the AP to allocate part of a transmission opportunity (TXOP) for P2P communications between the wireless communication device and a client device. The wireless communication device receives a trigger frame allocating a portion of the TXOP for the P2P communications, and transmits or receives P2P data to or from the client device over the wireless medium during the allocated portion of the TXOP. In some instances, the MAC header of the frame includes a Quality-of-Service (QOS) Control field carrying the request. In some other instances, the MAC header of the frame includes an Aggregated-Control (A-Control) subfield carrying the request.