MU-RTS Frame TXOP Sharing for Multi-Band Wi-Fi Coordination
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Solution Overview
Problem
Current Wi-Fi technology faces challenges in efficiently managing and optimizing Transmission Opportunity (TXOP) sharing across multiple frequency bands, particularly in high-density communication environments, where existing methods struggle to support low-latency and high-bandwidth transmissions.
Innovation Solution
The proposed solution involves the use of Multi-User Request To Send (MU-RTS) frames to allocate and share TXOPs between Access Points (APs) and Station Devices (STAs), allowing for targeted transmission durations and modes to optimize data transmission opportunities, enhancing frequency utilization and supporting multi-band aggregation and coordination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multi-band aggregation and coordination is implemented to support high-bandwidth transmissions, then transmission capacity is improved, but system complexity increases due to the need for new MAC mechanisms
Solution Approach 1:
The patent segments the transmission opportunity (TXOP) into shareable units that can be distributed across multiple stations. By dividing the TXOP management into individual allocation units for each STA, the system handles multi-band aggregation through modular, manageable segments rather than treating it as a monolithic complex system, thus reducing overall system complexity while maintaining high transmission capacity
Solution Approach 2:
The patent introduces a new dimension of TXOP sharing control by allocating transmission opportunities across multiple STAs simultaneously. This dimensional approach to managing multi-band transmissions allows the system to coordinate multiple frequency bands without proportionally increasing MAC mechanism complexity, as the sharing information encapsulates multi-dimensional transmission coordination in a structured format
2Productivity
If TXOP sharing is implemented across multiple STAs to improve spectrum utilization, then frequency utilization rate is improved, but managing transmission coordination becomes more complex
Solution Approach 1:
The patent creates a universal TXOP sharing mechanism that can be applied across multiple STAs and frequency bands through a standardized sharing information structure. This multi-functional approach allows the same TXOP allocation framework to serve diverse transmission scenarios, improving spectrum utilization without requiring separate coordination mechanisms for each STA pair, thus managing complexity efficiently
Solution Approach 2:
The patent introduces TXOP sharing information as an intermediary element that mediates transmission coordination between multiple STAs. This intermediary structure centralizes the coordination logic, allowing multiple stations to share transmission opportunities without direct peer-to-peer coordination complexity, thereby improving spectrum utilization while keeping management straightforward
3Speed
If targeted transmission durations are allocated to specific STAs to reduce latency, then transmission speed is improved, but precision in time allocation management is required
Solution Approach 1:
The patent implements preliminary action by pre-allocating targeted transmission durations to specific STAs through TXOP sharing information before actual data transmission begins. This advance time allocation allows stations to prepare for immediate transmission when their allocated time window arrives, reducing latency without requiring complex real-time arbitration, thus achieving precision in time allocation management
Data Source
AI summary
A communication method is performed by an access point (AP), and includes: sending a multi-user request to send (MU-RTS) frame; wherein the MU-RTS frame includes transmission opportunity (TXOP) sharing information, the TXOP sharing information includes a target transmission duration allocated to a first station (STA), and the target transmission duration is configured for the first STA to transmit data to a target AP or a second STA.