Channel Measurement Coordination for Reliable Multi-Link Communication
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Solution Overview
Problem
During channel measurement, network devices switch channels, causing packet loss and communication disruptions due to terminal devices continuing to transmit data on the original channel, which is not detected by the network devices.
Innovation Solution
Devices communicate channel measurement indications to synchronize data transmissions, allowing continued communication via the current or alternate channels during measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If network devices switch channels for channel measurement, then channel characteristics can be studied and analyzed, but packet loss and communication disruptions occur
Solution Approach 1:
The network device sends a channel measurement indication to the terminal device before performing channel measurement on a different channel. This preliminary action informs the terminal device to suspend data transmission during the measurement period, preventing packet loss and ensuring measurement accuracy without communication disruptions
Solution Approach 2:
The system implements a feedback mechanism where the network device communicates measurement indications to the terminal device. The terminal device responds by adjusting its transmission behavior accordingly, creating a closed-loop control that coordinates both devices to avoid packet loss during channel measurements
2Productivity
If terminal devices continue transmitting data on the original channel during network device channel measurement, then communication continuity is maintained, but packet loss occurs due to undetected channel switching
Solution Approach 1:
Before the network device switches to perform channel measurement on a different channel, it sends a channel measurement indication to the terminal device in advance. This allows the terminal device to proactively suspend data transmission on the original channel, ensuring both communication continuity and packet delivery success by coordinating transmission suspension with the measurement period
Solution Approach 2:
The network device provides feedback to the terminal device through the channel measurement indication, enabling the terminal device to adjust its transmission behavior. This feedback loop ensures the terminal device suspends transmission during measurement, maintaining both communication continuity and high packet delivery success rate
Data Source
Figure 1
Figure 2A~2B
Figure 2C
AI summary
Example embodiments of the present disclosure relate to a device, a method, an apparatus, and a computer-readable storage medium for communication. A method for communication includes obtaining, by a first device from a second device via a first channel, an indication that the second device is to perform a channel measurement for a second channel that is different from the first channel, the first device and the second device being currently operating on a first channel, and at least one communication link existing between the first device and the second device; and performing, based on the indication, at least one of: performing a data transmission to the second device within a duration of the channel measurement via the second channel; or performing a data transmission to the second device after a predetermined time interval via the first channel, or performing a data transmission to the second device with a communication link, in a plurality of communication links between the first device and the second device, that is unused for performing the channel measurement.