TXOP Sharing Trigger Frames for Multi-AP RU Coordination
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Solution Overview
Problem
Existing wireless communication technologies face challenges in efficiently sharing transmission opportunities (TXOP) among wireless devices, particularly in coordinating APs, leading to issues such as long latency, low throughput, and unfairness, and the existing TXOP sharing mechanism fails to support TXOP sharing between APs with different channel configurations.
Innovation Solution
The proposed solution involves assigning an AP ID to APs to facilitate multi-AP coordination, allowing the MU-RTS TXS Trigger frame to indicate specific shared APs, and implementing an RU conversion method to adapt frequency-domain resources based on individual channel configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional TXOP sharing mechanism is used, then transmission opportunity can be shared among devices, but latency increases and throughput decreases
Solution Approach 1:
The patent applies preliminary action by pre-configuring resource allocation information in the trigger frame before actual transmission. The AP pre-allocates RU resources and provides RU indication information to STAs in advance, allowing STAs to prepare their transmissions without waiting for dynamic resource negotiation, thus reducing latency and improving throughput.
Solution Approach 2:
The patent uses the trigger frame as an intermediary that carries pre-configured resource allocation information. This intermediary mechanism allows the AP to coordinate multiple STAs simultaneously by embedding RU allocation details in the trigger frame, enabling efficient multi-user transmission without repeated negotiation and reducing overall system latency.
2Adaptability or versatility
If TXOP sharing is implemented without AP ID assignment, then coordination between APs is difficult, but device complexity increases
Solution Approach 1:
The patent applies local quality by assigning specific AP IDs to different access points, allowing each AP to be uniquely identified and coordinated with others. This localized identification system enables selective coordination between specific APs without requiring complex global coordination mechanisms, maintaining simplicity while achieving multi-AP adaptability.
Solution Approach 2:
The patent changes the parameter of AP identification by introducing AP ID as a specific parameter in the trigger frame. This parameter change allows the system to differentiate between multiple APs and coordinate their transmissions efficiently, enhancing multi-AP coordination capability without significantly increasing device complexity.
3Adaptability or versatility
If fixed RU allocation is used in trigger frame, then resource allocation is simple, but adaptability to different channel configurations is poor
Solution Approach 1:
The patent applies dynamics by making RU allocation information dynamic and configurable in the trigger frame. Instead of fixed RU allocation, the system allows RU resources to be dynamically assigned based on channel conditions and STA capabilities. The RU indication information can be adjusted per trigger frame, enabling adaptability to different channel configurations while maintaining relatively simple allocation mechanisms.
Solution Approach 2:
The patent achieves universality by designing the trigger frame to carry multiple types of resource allocation information that can adapt to different channel configurations. The same trigger frame structure can accommodate various RU allocation patterns and channel widths, making the resource allocation mechanism universally applicable across different scenarios without requiring separate complex mechanisms for each case.
Data Source
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AI summary
The present application relates to the communication field, and in particular, to an information sending method and apparatus, a device, and a storage medium. The method comprises: sending a first frame, wherein the first frame is used for triggering TXOP sharing.