AP Coordination Transmission via Distributed Agreement Exchange
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Solution Overview
Problem
Traditional wireless communication systems with multiple access-point (AP) devices lack efficient and flexible coordination transmission mechanisms, particularly among AP devices disposed in different groups or neighborhoods.
Innovation Solution
AP devices are equipped with a transceiver and processor to exchange requests and responses for establishing coordination agreements, allowing decentralized coordination transmission through mechanisms like CSR, CBF, and CTDMA, with dynamic adjustment of coordination pairs based on beacon frames and leave messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a central controller manages data transmission of multiple AP devices, then coordination transmission can be organized within groups, but the system lacks flexibility and cannot enable coordination between different groups or neighborhoods
Solution Approach 1:
The patent divides the centralized control function into distributed control units at each AP device. Each AP can independently initiate coordination requests and make decisions about coordination transmission, eliminating the need for a central controller and enabling flexible coordination between any groups or neighborhoods of APs.
Solution Approach 2:
Each AP device is equipped with the capability to autonomously manage its own coordination transmissions by exchanging coordination requests and responses with other APs. This self-service mechanism allows APs to dynamically form coordination relationships without external control, improving adaptability while reducing system complexity.
2Adaptability or versatility
If AP devices within a family group perform coordination transmission, then organized group management is achieved, but coordination with neighboring APs in different groups is prevented
Solution Approach 1:
The coordination request and response mechanism is designed to be universal, allowing any AP device regardless of group affiliation to initiate and participate in coordination transmissions. The same protocol enables both intra-group and inter-group coordination, eliminating barriers between different AP groups while maintaining reliable agreement establishment through standardized procedures.
3Productivity
If decentralized coordination mechanism is implemented, then flexibility and inter-group coordination are improved, but additional signaling overhead for establishing coordination agreements is introduced
Solution Approach 1:
AP devices exchange coordination requests and responses in advance to establish coordination agreements before actual data transmission begins. This preliminary action allows the coordination relationship to be pre-negotiated and confirmed, reducing delays during actual transmission operations and improving overall coordination transmission efficiency.
Solution Approach 2:
The coordination mechanism incorporates feedback through response messages that confirm or reject coordination requests. This feedback loop enables rapid establishment of coordination agreements by allowing APs to quickly determine compatibility and form coordination relationships, minimizing the time loss associated with decentralized coordination setup.
Data Source
Figure 1
Figure 2A~2C
Figure 3A~3B
AI summary
A coordination transmission method is provided. A first request and a first response are exchanged with a second AP, by a first AP. The first request is used for requesting to establish a first coordination agreement between the first AP and the second AP. The first response is used for indicating an allowance or a rejection for establishing the first coordination agreement between the first AP and the second AP. A coordination transmission with the second AP is performed by the first AP, during an opportunity of transmission under a condition that the establishing of the first coordination agreement between the first AP and the second AP is allowed.