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CN-121986454-A - Intelligent switching between communication and sensing

CN121986454ACN 121986454 ACN121986454 ACN 121986454ACN-121986454-A

Abstract

The invention relates to a method implemented within a system using a communication channel, the method comprising, for a given instance in a sequence, -obtaining (306) a prediction of potential interference on the communication channel, the prediction being provided by a prediction model (208), and-providing (312) an indication of an operational state selected based on the prediction and on a performance criterion, wherein the operational state corresponds to one element of performing an operation allowing to observe (302) a channel condition of the communication channel for the given instance and not performing the operation.

Inventors

  • 5. Kolley
  • J-c. bell
  • N. Greisette

Assignees

  • 三菱电机株式会社

Dates

Publication Date
20260505
Application Date
20240405
Priority Date
20231010

Claims (14)

  1. 1. A method implemented within a system using a communication channel, the method comprising, for a given instance in a sequence, -Obtaining (306) a prediction of potential interference on said communication channel, the prediction being provided by a prediction model (208), and -Providing (312) an indication of an operational state selected based on the prediction and based on performance criteria, wherein the operational state corresponds to one element of performing an operation allowing to observe (302) channel conditions of the communication channel of the given instance and not performing the operation.
  2. 2. The method of claim 1, wherein the predictive model is updated with observed channel conditions for the given instance after operating on the given instance.
  3. 3. The method according to claim 1 or 2, wherein the operating state is selected by obtaining a figure of merit (902) associated with the prediction, comparing the figure of merit with a threshold (904) representing a desired performance, and deciding the operating state based on the result of the comparison.
  4. 4. A method according to claim 3, wherein the figure of merit is related to at least the reliability of the prediction.
  5. 5. The method of claim 4, wherein the reliability is based on at least one of: One or more fixed parameters of the system, -Observed channel conditions, and Feedback on system performance.
  6. 6. The method of any of claims 1 to 5, wherein the operational state is selected by applying a decision strategy based on a set of fixed criteria.
  7. 7. The method of any of claims 1 to 5, wherein the operational state is selected by applying a decision strategy that evolves with instances, notified by at least one learning mechanism.
  8. 8. The method of claim 7, wherein the at least one learning mechanism comprises a reinforcement learning mechanism.
  9. 9. The method of any of claims 1 to 8, wherein the predictive model is informed of at least one observed channel condition of a communication channel of at least one previous instance to provide a prediction of the given instance.
  10. 10. The method according to any of claims 1 to 9, wherein the prediction of potential interference comprises a probability measure of interference of the given instance and/or an upcoming instance, and/or wherein the prediction of potential interference comprises an estimate of an interference power level.
  11. 11. The method of any of claims 1 to 10, wherein the operational state corresponding to no operation further corresponds to transmitting data.
  12. 12. The method of claim 11, further comprising implementing a static link for transmitting data over the communication channel after providing the indication of the operational state corresponding to transmitting data.
  13. 13. A non-transitory computer-readable recording medium having a program recorded thereon, the program being for implementing the method according to any one of claims 1 to 12 when executed by a processor.
  14. 14. A system configured to, for a given instance in a sequence, -Obtaining (306) a prediction of potential interference on the communication channel, the prediction being provided by a prediction model (208), and -Providing (312) an indication of an operational state selected based on the prediction and based on performance criteria, wherein the operational state corresponds to one element of performing an operation allowing to observe (302) channel conditions of the communication channel of the given instance and not performing the operation.

Description

Intelligent switching between communication and sensing Technical Field The present disclosure relates to the field of telecommunications. More particularly, the present disclosure relates to a method, a non-transitory computer readable medium and a communication manager adapted to switch between two operating states, one of which corresponds to sensing a channel condition of a radio communication channel. The present application claims priority from european patent application No. EP23306758.6 filed 10/2023, the contents of which are incorporated herein by reference. Background In a half duplex communication system, two or more communication devices may communicate with each other, but cannot communicate simultaneously, the communication being unidirectional at a time. Thus, a transmitter mode and a receiver mode may be defined. A communication device in transmitter mode may communicate using a communication channel. A communication device in receiver mode may use a communication channel to listen for radio signals. The communication device may use the receiver mode to obtain information about the channel state, for example. For example, using a Carrier Sense Multiple Access (CSMA) medium access control protocol, a communication device may listen to a channel to ensure that no other communication device is currently transmitting. This protocol is commonly used as a collision avoidance (CSMA/CA) system. In fact, if two communication devices transmit information in the same frequency band (without using a multiple access scheme), the receiver may experience high interference power, resulting in a low signal-to-noise ratio (SNR). Such low SNR typically results in poor communication performance. Similar to the CSMA protocol, the 5G standard specifies CSI-IM (channel state information interference measurement) pilots, where no device should transmit signals within the cell under consideration. This enables listening for interfering signals, such as signals from neighboring cells. Knowing whether or not an interfering signal is present enables selection of appropriate communication parameters. Thus, finding a good tradeoff between communication and sensing is important for efficient communication. There is a need to improve the determination of switching decisions between transmitter mode and receiver mode. Disclosure of Invention The present disclosure improves this situation. There is proposed a method implemented within a system using a communication channel, the method comprising, for a given instance in a sequence, Obtaining a prediction of potential interference on said communication channel, the prediction being provided by a prediction model, and -Providing an indication of an operational state selected based on the prediction and based on performance criteria, wherein the operational state corresponds to one element of performing an operation allowing to observe channel conditions of the communication channel of a given instance and not performing the operation. In the context of the present disclosure, a "communication channel" is a radio channel that may be used for data transmission. The method allows for adaptively selecting operations based on predicted interference and ensures efficient performance. Periodic observation of the channel conditions may improve the adaptability and accuracy of the system in predicting future interference. The method allows flexibility as it allows for observation or no sensing according to the current prediction. In an exemplary implementation, the operational state corresponding to the channel condition not being observed may allow for an alternative operation, such as transmitting data over the communication channel, meaning that the operational state is a communication state or a communication mode. In this case, the method actively allows high communication performance, and improves communication quality by minimizing data loss by transmitting during low interference and avoiding transmitting during high interference. Furthermore, not observing the channel conditions may allow for selection of idle, passive or low power states or modes. In this case, the method allows high interference characterization performance while conserving energy. In an example, after operating on a given instance, a predictive model is updated with observed channel conditions for the given instance. This continual updating of the predictive model further improves its accuracy over time. Thus, the system becomes more and more sophisticated in predicting and mitigating interference, thereby continually improving performance. For example, in dense urban environments with large amounts of interfering signals, updating the predictive model as suggested helps maintain a stable connection. In an example, the operating state is selected by obtaining a figure of merit associated with the prediction, comparing the figure of merit to a threshold value representative of desired performance, and decid