Multi-Link Data Transmission Using Idle-Link Feedback
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Solution Overview
Problem
Electronic devices operating in non-STR or EMLSR modes face challenges in identifying whether a link is idle, leading to increased latency and difficulty in data transmission due to inability to receive data through specific links.
Innovation Solution
The electronic device includes processors that can individually or collectively transmit and receive information about idle links through other links, allowing data transmission to continue even when one link is busy, by using a communication circuit and processor to monitor and identify idle states across multiple links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the electronic device operates in non-STR or EMLSR mode to prevent interference between links, then link interference is reduced, but the device cannot identify whether specific links are idle, leading to increased latency
Solution Approach 1:
The patent introduces a third link as an intermediary to indirectly monitor the idle state of the second link. Instead of directly monitoring the second link (which is blocked in non-STR mode), the device uses the third link to receive information about the second link's state from the external electronic device, thus resolving the contradiction between preventing interference and identifying idle states.
2Productivity
If the electronic device transmits data through multiple links simultaneously to improve transmission speed, then data transmission speed is improved, but the device cannot identify idle states of individual links due to non-STR mode limitations
Solution Approach 1:
The patent implements a feedback mechanism where the external electronic device provides information about the idle state of the second link back to the first electronic device through the third link. This feedback loop enables the first device to identify idle states and make informed decisions about data transmission, resolving the difficulty of detecting link states while maintaining multi-link operation.
3Measurement precision
If the electronic device monitors signals through all links to identify idle states, then accurate idle state identification is achieved, but the device experiences self-interference when transmitting and receiving simultaneously
Solution Approach 1:
The patent segments the monitoring function by assigning different roles to different links. The third link is dedicated to receiving idle state information, while the second link is the target of monitoring. This segmentation allows accurate idle state detection without requiring simultaneous transmission and reception on the same link, thus avoiding self-interference.
Data Source
AI summary
An electronic device may include: at least one antenna; a communication circuit which is electrically connected to the antenna, and which transmits/receives data through at least one from among a plurality of links including a first link, a second link and a third link generated between an external electronic device and the electronic device; and a processor(s), including processing circuitry, operatively connected to the communication circuit, wherein the processor(s) may be configured to: transmit, to the external electronic device, information of the second link and the third link through the first link when operating in an operation mode in which data cannot be received through the second link, while data is transmitted to the external electronic device through the first link; receive, from the external electronic device, through the third link, information indicating that data transmission is available through the second link, while the data is transmitted to the external electronic device through the first link; and transmit data to the external electronic device through the second link. Other embodiments are possible.