MU-MIMO Capability Signaling for Multi-Link Composite Resource Units
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Solution Overview
Problem
Current Wi-Fi technology limitations in bandwidth aggregation and collaboration across multiple frequency bands, particularly in supporting composite resource units for MU-MIMO, restrict throughput and latency in applications like video transmission and AR/VR.
Innovation Solution
A communication method and device that utilize MU-MIMO capability information in message frames to identify support for both single-type and composite resource units, enabling efficient data transmission across multiple links by sending and receiving MU-MIMO capability information, specifically using partial bandwidth DL and UL MU-MIMO subfields to support various resource unit configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple frequency bands are aggregated and collaborated for communication, then throughput and transmission rate are improved, but device complexity and MAC mechanism complexity increase
Solution Approach 1:
The patent segments the MU-MIMO capability information into distinct subfields (partial bandwidth DL MU-MIMO subfield and partial bandwidth UL MU-MIMO subfield) within the capability information element. This segmentation allows the complex multi-band aggregation functionality to be systematically organized and transmitted, reducing the complexity of processing by breaking down the capability indication into manageable components for each frequency band and direction.
2Productivity
If composite resource units are supported for MU-MIMO, then spectrum utilization and throughput are improved, but compatibility and adaptability requirements increase
Solution Approach 1:
The patent employs dynamic indication through the MU-MIMO capability information elements that can adaptively signal support for single-type or composite resource units. The capability information dynamically adjusts based on the specific communication scenario and device capabilities, allowing the system to flexibly select between different resource unit types (single-type RU or composite RU) to optimize spectrum utilization while maintaining compatibility with various devices and scenarios.
Data Source
AI summary
A communication method is performed by a communication device supporting multiple links, and includes: determining a first message frame, wherein the first message frame includes information regarding multiple user multiple input multiple output (MU-MIMO), and the information regarding MU-MIMO is configured to identify a support status of the communication device for at least one of a single-type resource unit or a composite resource unit; and sending the first message frame.