Multi-Link Communication Frame Timing for Non-STR WLAN Devices
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Solution Overview
Problem
Existing wireless LAN devices face challenges in efficiently performing multi-link operations due to the need for simultaneous transmission and reception, which is difficult for all communication apparatuses to support, especially when switching frequency bands.
Innovation Solution
A communication apparatus and method that maintains multiple connections by configuring frame lengths based on destination information, allowing simultaneous transmission and reception even in devices that do not support it, by generating frames with synchronized end points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multi-link operation is implemented to maintain multiple connections in different frequency bands, then throughput per user is improved, but hardware requirements increase due to the need for simultaneous transmission and reception support
Solution Approach 1:
The patent changes the parameter of frame transmission timing by introducing a frame length extension mechanism. When a device does not support simultaneous transmission and reception, the system extends the frame length parameter to ensure that transmission and reception operations do not overlap in time, thereby eliminating the need for complex STR-capable hardware while maintaining multi-link operation benefits
Solution Approach 2:
The patent introduces dynamic frame length adjustment based on device capabilities. The frame length is not fixed but is dynamically determined according to whether the communication apparatus supports simultaneous transmission and reception, allowing the system to adapt to different hardware capabilities while maintaining efficient multi-link operation
2Productivity
If frame transmission and reception are performed simultaneously in multiple connections, then communication efficiency is improved, but compatibility between devices decreases due to high hardware requirements
Solution Approach 1:
The patent creates a universal frame transmission mechanism that works for both STR-capable and non-STR-capable devices. By introducing a frame length extension option, the system achieves multi-functionality where the same multi-link operation can be performed efficiently regardless of whether individual devices support simultaneous transmission and reception, thereby improving device compatibility
Solution Approach 2:
The system uses parameter changes in frame length configuration to accommodate different device capabilities. When communicating with devices that do not support STR, the frame length parameter is adjusted to ensure temporal separation of transmission and reception operations, maintaining compatibility while preserving communication efficiency through multi-link operation
Data Source
AI summary
A communication apparatus that maintains a first connection and a second connection, the communication apparatus including a frame generator configured to generate a first frame and a second frame, and a transmitter configured to transmit the first frame based on the first connection and transmit the second frame based on the second connection, wherein a frame length of the first frame and a frame length of the second frame are configured based on destination information of the first frame and destination information of the second frame, respectively.