Peer-to-Peer TXOP Parameter Signaling for Rule-Compliant Wi-Fi
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Solution Overview
Problem
In wireless communication networks, peer-to-peer devices are often unaware of the communication parameters set by the access point, leading to violations of transmission rules during shared transmission opportunities (TXOP), resulting in inefficient and rule-violating bandwidth usage.
Innovation Solution
Techniques for signaling parameters for wireless communications, including subchannel puncturing patterns and maximum bandwidth, are implemented to ensure devices within the network are aware of the established parameters, allowing compliant peer-to-peer communications during TXOPs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If peer-to-peer devices communicate during shared TXOP without knowing AP-set parameters, then communication flexibility is improved, but transmission rule violations occur
Solution Approach 1:
The access point performs preliminary actions by determining communication parameters (bandwidth, subchannel puncturing patterns) before the peer-to-peer transmission opportunity begins. These parameters are embedded in trigger frames sent to initiating stations, ensuring all devices have advance knowledge of the rules they must follow during the shared TXOP, thus preventing violations while maintaining flexibility
Solution Approach 2:
The access point acts as an intermediary that mediates between the need for flexible peer-to-peer communication and the requirement for rule compliance. By controlling parameter distribution through trigger frames and monitoring the transmission, the AP ensures that devices can communicate flexibly while adhering to network-wide transmission rules
2Productivity
If devices use unknown bandwidth parameters during TXOP, then bandwidth utilization efficiency is improved, but rule violations and inefficient usage occur
Solution Approach 1:
The access point determines the bandwidth parameter before the transmission opportunity and communicates it to relevant devices through trigger frames. This preliminary establishment of bandwidth rules allows devices to efficiently utilize the allocated spectrum while ensuring compliance with network transmission rules, avoiding both waste and violations
3Device complexity
If communication parameters are not signaled to peer devices, then device complexity is reduced, but parameter awareness and compliant transmission are compromised
Solution Approach 1:
The access point serves as an intermediary that centralizes the complexity of parameter management. Instead of requiring peer devices to independently determine and manage communication parameters, the AP determines parameters and distributes them through trigger frames, reducing device complexity while ensuring all devices have the necessary parameter awareness for compliant transmission
Data Source
AI summary
Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for signaling parameters for peer-to-peer communications in a wireless network. One aspect provides a method for wireless communications at an access point (AP). The method generally includes: obtaining, from an access point (AP), a transmission opportunity (TXOP) sharing trigger indicating a duration in which a TXOP is shared by the wireless station and one or more other devices; relaying, to the one or more other devices, information identifying parameters for wireless communications between the wireless station and the one or more other devices; and during the TXOP, communicating with the one or more other devices based on the parameters for wireless communications between the wireless station and the one or more other devices.