P2P Group Resource Allocation via AP TXOP Segmentation
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing resources for peer-to-peer (P2P) groups in wireless networks, particularly in supporting low-latency and high-throughput applications like augmented reality and unmanned vehicles.
Innovation Solution
The proposed solution involves a station (STA) in a wireless network that requests resources from an access point (AP) for a P2P group, with the AP allocating a transmission opportunity (TXOP) and the STA transmitting frames to peer STAs within the allocated TXOP.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If traditional wireless network resource allocation is used, then network coverage and basic connectivity are maintained, but latency increases and throughput decreases for P2P groups
Solution Approach 1:
The patent segments the wireless network resource allocation into group-specific TXOPs (transmission opportunities) for P2P groups. By dividing the network resources and creating dedicated time slots for different P2P groups, the system reduces interference and contention delays, thereby lowering latency while maintaining throughput for each group.
Solution Approach 2:
The patent implements preliminary resource allocation where the access point pre-allocates TXOPs to P2P groups before actual data transmission begins. This preliminary action of assigning dedicated time slots and resources in advance eliminates runtime contention and scheduling delays, directly reducing latency while ensuring guaranteed throughput for the P2P group communications.
2Productivity
If centralized resource management by AP is used, then network control and coordination are maintained, but resource allocation efficiency for P2P groups deteriorates
Solution Approach 1:
The patent merges the resource allocation function into the existing AP-centric framework while adapting it for P2P group needs. By combining centralized coordination with group-specific TXOP allocation, the system maintains AP control for overall network management while efficiently allocating resources to P2P groups, improving allocation efficiency without significantly increasing complexity.
Solution Approach 2:
The patent introduces dynamic resource allocation where TXOPs can be reallocated based on actual P2P group traffic conditions and requirements. This dynamic adjustment mechanism allows the system to adapt resource distribution in real-time, improving allocation efficiency for varying network conditions while maintaining manageable complexity through standardized allocation protocols.
3Productivity
If individual STA resource requests are processed separately, then simple request-handling is maintained, but P2P group throughput and coordination are limited
Solution Approach 1:
The patent makes the AP's resource allocation mechanism universal by enabling it to handle both individual STA requests and P2P group requests through a unified framework. The access point processes P2P group requests similarly to individual requests but aggregates resources to allocate TXOPs that serve multiple STAs in the group simultaneously, thereby improving group throughput while maintaining ease of operation through consistent handling procedures.
Data Source
AI summary
A station (STA) in a wireless network, comprising a memory and a processor coupled to the memory, the processor configured to transmit, to an access point (AP), a request frame that requests a resource from the AP for a P2P group to which the STA belongs; receive, from the AP, a trigger frame that allocates a TXOP; and transmit, to a peer STA in the P2P group, one or more frames within the TXOP.