Multi-Link Re-Setup Signaling for Low-Overhead Wi‑Fi Band Aggregation
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Solution Overview
Problem
Existing Wi-Fi technologies lack a mechanism to efficiently manage and reset multiple frequency bands for simultaneous communication, leading to inefficiencies and increased power consumption.
Innovation Solution
A multi-link re-setup method involving message frames that include link identifiers and MAC addresses for multiple links, enabling rapid re-setup and configuration of multiple links between devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a request message frame is used to make an association request for establishing a single link, then the link setup process is simple, but it is not suitable for the aggregation and cooperation of multiple frequency bands
Solution Approach 1:
The patent merges multiple link setup operations into a single message frame exchange. The first message frame carries link identifiers for multiple links between the first device and second device, allowing simultaneous establishment of multiple frequency band connections through one request-response cycle rather than separate individual setups
Solution Approach 2:
The message frame structure is designed to be universal for multi-link operations. It includes a link identifier field that can identify multiple different links (frequency bands), making the same message frame type applicable for establishing associations across 2.4 GHz, 5.8 GHz and 6-7 GHz bands simultaneously
2Productivity
If multiple frequency bands are used for simultaneous communication, then the throughput is improved, but the signaling overhead increases
Solution Approach 1:
The patent combines multiple link setup signaling operations into a single message frame exchange. By including link identifiers for multiple links in one first message frame and responding with one second message frame, it eliminates the need for separate signaling exchanges for each frequency band, thereby reducing overall signaling overhead while maintaining multi-band throughput capabilities
3Productivity
If multiple frequency bands are used for simultaneous communication, then the data transmission capacity is improved, but the power consumption increases
Solution Approach 1:
The patent performs preliminary link setup configuration through efficient message frame exchange before actual data transmission begins. By establishing all multi-link associations in advance through compact signaling, it enables the devices to quickly transition to data transmission mode without repeated setup overhead, thereby improving the energy efficiency of sustained multi-band data transmission
Data Source
AI summary
A multi-connection reestablishment method, for use in a first device, and comprising: sending a first message frame, the first message frame comprising: a connection identifier of multiple connections of a first device and a second device, and media access control MAC addresses of the first device, one connection being associated with one MAC address of the first device.