Multi-Link Frame Addressing for Higher Wi-Fi Throughput
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Solution Overview
Problem
Existing communication standards, such as IEEE802.11ax, do not effectively support multi-link communication scenarios where devices communicate simultaneously across multiple frequency bands, leading to inefficiencies in data transmission and potential compatibility issues with new IEEE802.11be standards.
Innovation Solution
A communication method and device that determine sender and recipient addresses for subframes based on the capability of devices to support simultaneous sending and receiving across multiple links, using a capability bit to indicate multi-link device capabilities and setting addresses accordingly, with an optional link identifier in the subframe.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple frequency bands are aggregated and cooperated for communication, then network throughput is improved, but device complexity and MAC mechanism complexity increase
Solution Approach 1:
The patent segments the aggregated data unit into multiple subframes, where each subframe can be independently transmitted over different frequency bands or links. This segmentation allows the system to manage complex multi-band communication by breaking it down into manageable units, each with its own transmission path, thereby improving throughput while maintaining controllable complexity in the MAC mechanism.
2Productivity
If subframes are transmitted under multiple links simultaneously, then data transmission efficiency is improved, but address management complexity increases
Solution Approach 1:
The patent applies local quality by allowing different address mapping strategies for different subframes or different links. Specifically, the sender address and recipient address can be mapped differently depending on the link being used, enabling optimized address management for each local context while maintaining overall system coordination through the capability indication mechanism.
3Adaptability or versatility
If capability indication mechanism is implemented, then compatibility with existing standards is maintained, but signaling overhead increases
Solution Approach 1:
The patent merges the capability indication with existing capability elements in the MAC protocol. By integrating the multi-link capability bit into existing capability exchange mechanisms rather than creating separate signaling channels, the patent maintains compatibility with existing standards while minimizing additional signaling overhead. The capability information is combined with other device capability exchanges that already occur in the protocol.
Data Source
AI summary
The present disclosure provides a communication method and a communication device under multiple links. The communication method may comprise: determining a first message frame, said first message frame comprising a plurality of subframes, each subframe comprising a sender address and a recipient address; said determining a first message frame comprises: according to the capability information of the device sending said first message frame and the device receiving said first message frame, respectively, determining the sender address and recipient address of the subframe under different links accordingly.