AP Coordination via Networking Windows
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Solution Overview
Problem
Existing wireless communication technologies face challenges in achieving efficient time synchronization and coordinated communications between access points (APs) associated with different basic service sets (BSSs), which can lead to interference and reduced network performance.
Innovation Solution
The development of an apparatus and method for wireless communication that includes a processing system to generate and transmit messages for coordinated communications between APs associated with different BSSs, utilizing networking coordination windows and synchronization information to manage interference and enhance network efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If APs from different BSSs perform coordinated communications without time synchronization, then device complexity is reduced, but interference increases and network performance deteriorates
Solution Approach 1:
The patent introduces a networking coordination window as an intermediary time slot where APs from different BSSs exchange coordination information and synchronization data. This mediator mechanism enables synchronized coordinated communications without requiring complex continuous coordination, thus reducing interference while maintaining manageable device complexity.
Solution Approach 2:
The patent implements periodic networking coordination windows at regular intervals (e.g., every 10ms) where APs synchronize their clocks and exchange coordination information. This periodic action ensures time synchronization is maintained without requiring complex continuous coordination mechanisms, resolving the contradiction between reducing interference and maintaining device complexity.
2Measurement precision
If APs use networking coordination windows for synchronization, then time synchronization precision is improved, but loss of time increases due to coordination overhead
Solution Approach 1:
The patent ensures that networking coordination windows are integrated into the continuous transmission opportunity (TXOP) structure, where coordination information is exchanged during designated time slots without interrupting the overall coordinated communication flow. This maintains time synchronization precision while minimizing time loss by making the coordination action continuous and integrated rather than separate and disruptive.
3Measurement precision
If APs exchange coordination information frequently, then time synchronization accuracy is improved, but use of energy increases
Solution Approach 1:
The patent establishes periodic networking coordination windows at optimized intervals (e.g., every 10ms) that balance synchronization accuracy requirements with energy consumption constraints. APs exchange coordination information only during these periodic windows rather than continuously, maintaining time synchronization accuracy while significantly reducing energy usage compared to continuous coordination.
Solution Approach 2:
The patent performs time synchronization and coordination information exchange in advance during networking coordination windows before actual coordinated communications begin. This preliminary action ensures synchronization accuracy is established beforehand, allowing subsequent communications to proceed without additional coordination overhead, thus reducing overall energy consumption.
Data Source
AI summary
Certain aspects of the present disclosure provide an apparatus for wireless communication. The apparatus generally includes a processing system configured to generate a message comprising coordination information, wherein the apparatus is associated with a first AP, the message to be used for coordinated communications by the first AP and a second AP, wherein the first AP and the second AP are associated with different basic service sets (BSSs), and an interface configured to output the message for transmission during a networking coordination window of a networking cluster.