Communication method, communication system, device, and storage medium

Abstract

The present disclosure relates to a communication method, a communication system, a device, and a storage medium. The method comprises: receiving, in a first time-domain unit, a sensing signal sent by a second device, wherein a first guard period is provided between the first time-domain unit and a second time-domain unit, and the second time-domain unit is a time-domain resource used for a communication signal. In the method of the present disclosure, a first guard period can be provided between a first time-domain unit used for transmitting a sensing signal and a second time-domain unit used for transmitting a communication signal, such that in a communication system integrating sensing and communication, the sensing signal and the communication signal can be transmitted on respective time-domain resources, thereby reducing interference to the sensing signal, and the communication system can smoothly execute a sensing task, thereby improving the experience of a sensing service.

Description

Communication methods, communication systems, equipment and storage media Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a communication method, communication system, device and storage medium. Background Technology

[0002] Integrated Sensing and Communication (ISAC) is a new type of communication technology that can be applied to 5G or 6G networks. It aims to integrate sensing capabilities into communication systems, enabling communication systems to provide sensing as a service along with communication to users.

[0003] Summary of the Invention

[0004] For communication systems that integrate communication and sensing, it is necessary to address the conflict or reuse issues between resources used for sensing and resources used for communication.

[0005] This disclosure provides a communication method, a communication system, a device, and a storage medium.

[0006] In a first aspect, embodiments of this disclosure provide a communication method, executed by a first device, the method comprising:

[0007] The first time domain unit receives the sensing signal sent by the second device; wherein, a first guard period (GP) is provided between the first time domain unit and the second time domain unit, and the second time domain unit is a time domain resource for communication signals.

[0008] Secondly, embodiments of this disclosure provide a communication method executed by a second device, the method comprising:

[0009] A sensing signal is sent to a first device in a first time domain unit; wherein a first guard interval is provided between the first time domain unit and the second time domain unit, and the second time domain unit is a time domain resource used for communication signals.

[0010] Thirdly, embodiments of this disclosure provide a communication system, including a first device and a second device, wherein...

[0011] The first device is configured to implement the method as described in the first aspect;

[0012] The second device is configured to implement the method as described in the second aspect.

[0013] Fourthly, embodiments of this disclosure provide a system frame, including: a first time-domain unit, a second time-domain unit, and a first guard interval;

[0014] The first protection interval is located between the first time domain unit and the second time domain unit. The first time domain unit is a time domain resource for sensing signals or reflecting sensing signals, and the second time domain unit is a time domain resource for communication signals.

[0015] Fifthly, embodiments of this disclosure provide a first device, comprising:

[0016] The transceiver module is used to receive sensing signals sent by the second device in the first time domain unit; wherein, a first guard interval is provided between the first time domain unit and the second time domain unit, and the second time domain unit is a time domain resource for communication signals.

[0017] Sixthly, embodiments of this disclosure provide a second device, comprising:

[0018] A transceiver module is used to send a sensing signal to a first device in a first time domain unit; wherein a first guard interval is provided between the first time domain unit and the second time domain unit, and the second time domain unit is a time domain resource for communication signals.

[0019] In a seventh aspect, embodiments of this disclosure provide a communication device, including:

[0020] One or more processors;

[0021] The communication device is configured to implement the method described in the first aspect or the second aspect.

[0022] Eighthly, embodiments of this disclosure provide a storage medium storing instructions, wherein...

[0023] When the instructions are executed on the communication device, the communication device causes the communication device to perform the method as described in the first aspect or the second aspect.

[0024] Ninthly, embodiments of this disclosure provide a program product, wherein,

[0025] When the program product is executed by a communication device, the communication device performs the method as described in the first aspect or the second aspect.

[0026] In this embodiment of the present disclosure, a first guard interval may be set between the first time domain unit for transmitting sensing signals and the second time domain unit for transmitting communication signals. This allows sensing signals and communication signals to be transmitted on their respective time domain resources in a communication system that integrates sensing and communication, reducing interference to sensing signals and enabling the communication system to perform sensing tasks smoothly and improve the experience of sensing services. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure.

[0028] Figures 1a and 1b are exemplary schematic diagrams of the architecture of a communication system provided according to embodiments of the present disclosure;

[0029] Figures 2a and 2b are exemplary interactive schematic diagrams of a method provided according to an embodiment of the present disclosure;

[0030] Figures 2c to 2e are schematic diagrams of scenarios provided according to embodiments of the present disclosure;

[0031] Figure 3 is an exemplary flowchart of a method provided according to an embodiment of the present disclosure;

[0032] Figure 4 is an exemplary flowchart of a method provided according to an embodiment of the present disclosure;

[0033] Figure 5a is a schematic diagram of the structure of a terminal according to an embodiment of the present disclosure;

[0034] Figure 5b is a schematic diagram of the structure of a network device according to an embodiment of the present disclosure;

[0035] Figure 6a is a schematic diagram of a communication device according to an embodiment of the present disclosure;

[0036] Figure 6b is a schematic diagram of a communication device according to an embodiment of the present disclosure. Detailed Implementation

[0037] This disclosure provides a communication method, a communication system, a device, and a storage medium.

[0038] In a first aspect, embodiments of this disclosure provide a communication method, executed by a first device, the method comprising:

[0039] The first time domain unit receives the sensing signal sent by the second device; wherein, a first protection interval is set between the first time domain unit and the second time domain unit, and the second time domain unit is a time domain resource used for communication signals.

[0040] In the above embodiments, a first guard interval can be set between the first time domain unit for transmitting sensing signals and the second time domain unit for transmitting communication signals, so that in the communication system that integrates sensing and communication, sensing signals and communication signals can be transmitted on their respective time domain resources, reducing interference to sensing signals, so that the communication system can smoothly perform sensing tasks and improve the experience of sensing services.

[0041] In conjunction with the embodiments of the first aspect, in some embodiments, the first protection interval is zero, or the first protection interval is a first duration, the first duration being greater than zero.

[0042] In the above embodiments, the first protection interval can be zero or greater than zero, so that an appropriate first protection interval can be adopted in different scenarios of sensing and communication fusion, so as to save time domain resources in scenarios where GP is not needed, and effectively reduce the interference between communication signals and sensing signals in scenarios where GP is needed.

[0043] In conjunction with the embodiments of the first aspect, in some embodiments, the first protection interval has a plurality of candidate durations, wherein the plurality of candidate durations includes at least a first duration that is zero or greater than zero.

[0044] In the above embodiments, the first protection interval can be defined by a protocol or configured by the network with multiple candidate durations, so that the first device can select a suitable first protection interval duration from multiple candidate durations according to the scenario, so as to meet the transmission requirements of communication signals in different scenarios.

[0045] In conjunction with the embodiments of the first aspect, in some embodiments, the duration of the first protection interval is defined by a protocol or configured by a network device.

[0046] In the above embodiments, the first device can communicate sensing signals and communication signals based on a first protection interval defined by the protocol or configured by the network, thereby ensuring the smooth execution of sensing services.

[0047] In conjunction with the embodiments of the first aspect, in some embodiments, if the first device and the second device are the same device, the first protection interval is zero when one of the following conditions is met:

[0048] The first device and the second device are base stations, and both the first time domain unit and the second time domain unit are downlink (DL) time domain units; or, the first device and the second device are terminals, and the first time domain unit is an uplink (UL) time domain unit and the second time domain unit is a UL time domain unit, wherein no terminal other than the first device sends UL communication signals.

[0049] In the above embodiments, various scenarios are illustrated when the first protection interval is zero. In these scenarios, the sensing time domain resources and the communication time domain resources can be continuous to save time domain resources. The first device with strong capabilities executes corresponding services on different time domain resources according to scheduling or demand.

[0050] In conjunction with the embodiments of the first aspect, in some embodiments, if the first device and the second device are the same device, the first protection interval is the first duration when one of the following conditions is met:

[0051] The first device and the second device are base stations, and the first time domain unit is a DL time domain unit and the second time domain unit is an uplink UL time domain unit; or, the first device and the second device are terminals, and the first time domain unit is a UL time domain unit and the second time domain unit is a DL time domain unit; or, the first device and the second device are terminals, and the first time domain unit is a UL time domain unit and the second time domain unit is a UL time domain unit.

[0052] In the above embodiments, various scenarios are illustrated where the first protection interval is a first duration. In these scenarios, there is a certain duration interval between the sensing time domain resources and the communication time domain resources, thereby reducing interference between different signals.

[0053] In conjunction with the embodiments of the first aspect, in some embodiments, the first device and the second device are not the same device, and the first protection interval is determined based on the self-interference capability of the first device.

[0054] In the above embodiments, a first device with different capabilities can determine or select a first protection interval adapted to its capabilities, so that the first device with different capabilities can perform sensing services based on a suitable first protection interval.

[0055] In conjunction with the embodiments of the first aspect, in some embodiments, the self-interference capability includes one of the following:

[0056] The first capability to support simultaneous reception and transmission of signals at the same or different frequencies;

[0057] It does not support the secondary capability of simultaneously receiving and transmitting signals at the same or different frequencies;

[0058] It does not support simultaneous reception and transmission of signals on the same frequency, but supports a third capability: simultaneous reception and transmission of signals on different frequencies.

[0059] In conjunction with the embodiments of the first aspect, in some embodiments, the first device supports a first capability, a second capability, or a third capability, and the first protection interval is a first duration.

[0060] In the above embodiments, for first devices that support different self-interference capabilities, the first protection interval can be determined or selected according to the lowest capability, so that first devices with different capabilities can be applied, saving the operation of the first devices.

[0061] In conjunction with the embodiments of the first aspect, in some embodiments, the first device supports a first capability and the first protection interval is zero; or, the first device supports a third capability and the first protection interval is zero at a frequency different from the sensing signal or the sensing signal.

[0062] In the above embodiments, it is illustrated that the capability of the first device is applicable to a scenario with zero first protection interval. For this part of the first device with higher capability, self-interference deletion can be achieved, so that it is not necessary to set a long first protection interval to reduce the interference of sensing signals and ensure the operation of sensing services.

[0063] In conjunction with the embodiments of the first aspect, in some embodiments, the first device supports a first capability, and there is a signal sent by an interfering device that interferes with the first device, and the first protection interval is a first duration;

[0064] Alternatively, the capability of the first device is the second capability, and the first protection interval is the first duration; or...

[0065] The capability of the first device is the third capability, and the first protection interval is the first duration at the same frequency as the sensing signal or the sensing signal.

[0066] In the above embodiments, it is shown that the first device capability is applicable to scenarios where the first protection interval is a first duration, so that the first device can perform sensing services normally in these scenarios and reduce interference with communication services.

[0067] In conjunction with the embodiments of the first aspect, in some embodiments, the first device and the second device are different base stations, and both the first time domain unit and the second time domain unit are DL time domain units;

[0068] Alternatively, the first device and the second device are different base stations, and the first time domain unit is a UL time domain unit and the second time domain unit is a DL time domain unit;

[0069] Alternatively, the first device is a terminal, the second device is a base station, and the first time domain unit is a DL time domain unit and the second time domain unit is a UL time domain unit;

[0070] Alternatively, the first device is a base station, the second device is a terminal, and the first time domain unit is a UL time domain unit and the second time domain unit is a DL time domain unit;

[0071] Alternatively, the first device and the second device are different terminals, and the first time domain unit is a UL time domain unit and the second time domain unit is a UL time domain unit.

[0072] The above embodiments illustrate a scenario in which the first protection interval is determined based on capabilities. For how to determine the first protection interval based on capabilities in different scenarios, please refer to the description of the foregoing embodiments, so as to determine the appropriate first protection interval for the corresponding scenario.

[0073] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes: sending capability information to a network device, the capability information being used to indicate self-interference capabilities supported by the first device.

[0074] In the above embodiments, the first device can report its self-interference capability to the network device by sending capability information, so that the network device can know the self-interference capability of different first devices.

[0075] In conjunction with the embodiments of the first aspect, in some embodiments, multiple first devices with different self-interference capabilities have different first protection intervals.

[0076] In the above embodiments, a corresponding first protection interval is configured for each first device with different capabilities, so that the first devices with different capabilities can adopt an appropriate first protection interval based on their own capabilities.

[0077] In conjunction with the embodiments of the first aspect, in some embodiments, when the first device and the second device are not the same device, and there is a signal sent by an interfering device interfering with the first device, the first protection interval is a first duration.

[0078] In the above embodiments, if there are other devices interfering with the first device, a protection interval of a certain duration needs to be set between the sensing time domain resources and the communication time domain resources to reduce or avoid interference of the communication signal to the sensing signal.

[0079] In conjunction with the embodiments of the first aspect, in some embodiments, the first device and the second device are different base stations, and the first time domain unit is a DL time domain unit and the second time domain unit is a UL time domain unit;

[0080] Alternatively, the first device and the second device are different base stations, and the first time domain unit is a UL time domain unit and the second time domain unit is a UL time domain unit;

[0081] Alternatively, the first device is a terminal, the second device is a base station, and the first time domain unit is a DL time domain unit, and the second time domain unit is a DL time domain unit;

[0082] Alternatively, the first device is a base station, the second device is a terminal, and the first time domain unit is a UL time domain unit, and the second time domain unit is a UL time domain unit;

[0083] Alternatively, the first device and the second device are different terminals, and the first time domain unit is a UL time domain unit and the second time domain unit is a DL time domain unit.

[0084] The above embodiments illustrate possible scenarios where other devices may interfere, so that the first device can perform sensing services using a first protection interval of a certain duration in the relevant scenarios.

[0085] In conjunction with the embodiments of the first aspect, in some embodiments, the first duration is greater than or equal to a first value; wherein the first value is determined based on the sensing and detection distance of the first device.

[0086] In the above embodiments, the first protection interval corresponding to the first device can be related to its own sensing and detection distance, so that there is a sufficient interval between the sensing time domain resources and the communication time domain resources, so that the time domain resources of the first device receiving the sensing signal do not overlap with the communication time domain resources, thereby reducing interference.

[0087] In conjunction with the embodiments of the first aspect, in some embodiments, when the first device and the second device are different terminals, the first duration is greater than or equal to the second value; wherein the second value is determined based on the timing advance (TA) interval between the different terminals and the sensing detection distance of the first device.

[0088] In the above embodiments, for the terminal, the first protection interval corresponding to the terminal is related to the TA interval and its own sensing and detection distance. In scenarios where different terminals have different TAs, the sensing and receiving terminal can select an appropriate first protection interval.

[0089] In conjunction with the embodiments of the first aspect, in some embodiments, the TA interval is the maximum TA allowed in the cell where the first device is located or zero.

[0090] In conjunction with the embodiments of the first aspect, in some embodiments, the first device does not expect the existence of transmitted uplink communication signals within the first protection interval; or, the first device does not expect the existence of transmitted downlink communication signals within the first protection interval.

[0091] In the above embodiments, the first sensing and receiving device does not expect to transmit uplink or downlink communication signals within the first guard interval, so as to reduce the interference of communication time domain resources on sensing time domain resources.

[0092] In conjunction with the embodiments of the first aspect, in some embodiments, the uplink communication signal and the sensing signal or the reflected sensing signal are at the same frequency; or, the downlink communication signal and the sensing signal or the reflected sensing signal are at the same frequency.

[0093] In the above embodiments, the first device may not expect communication transmissions at the same frequency as the sensing signal in the communication time domain resources, so as to reduce co-frequency interference.

[0094] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes: sending indication information to network devices in co-frequency neighboring cells, the indication information being used to instruct the network devices to suspend uplink scheduling for cell edge users within a first protection interval, or the indication information being used to instruct the network devices to suspend downlink scheduling within the first protection interval.

[0095] In the above embodiments, the first device can send an indication message to prompt the network device to suspend the relevant scheduling for communication transmissions that are not expected within the first protection interval.

[0096] In conjunction with the embodiments of the first aspect, in some embodiments, the first protection interval satisfies at least one of the following:

[0097] If the first protection interval is less than or equal to the second protection interval, the first protection interval is set within the second protection interval;

[0098] The first protection interval is less than or equal to the sum of the second protection interval and the additional protection interval configured.

[0099] The first protection interval is the sum of the second protection interval and the protection interval used for sensing signals;

[0100] The second protection interval is the protection interval between the UL time domain unit and the DL time domain unit.

[0101] In the above embodiments, the first protection interval introduced in the sensing communication fusion system can be related to the second protection interval, thereby meeting different isolation requirements.

[0102] Secondly, embodiments of this disclosure provide a communication method executed by a second device, the method comprising:

[0103] A sensing signal is sent to a first device in a first time domain unit; wherein a first guard interval is provided between the first time domain unit and the second time domain unit, and the second time domain unit is a time domain resource used for communication signals.

[0104] In conjunction with the embodiments of the second aspect, in some embodiments, the first protection interval is zero, or the first protection interval is a first duration, the first duration being greater than zero.

[0105] In conjunction with the embodiments of the second aspect, in some embodiments, the first protection interval has a plurality of candidate durations, wherein the plurality of candidate durations includes at least a first duration of zero or greater than zero.

[0106] In conjunction with embodiments of the second aspect, in some embodiments, the duration of the first protection interval is defined by a protocol or configured by a network device.

[0107] In conjunction with the embodiments of the second aspect, in some embodiments, if the first device and the second device are the same device, the first protection interval is zero when one of the following conditions is met:

[0108] The first and second devices are base stations, and both the first and second time-domain units are downlink DL time-domain units; or,

[0109] The first device and the second device are terminals, and the first time domain unit is a UL time domain unit and the second time domain unit is a UL time domain unit. There is no terminal other than the first device that sends UL communication signals.

[0110] In conjunction with the embodiments of the second aspect, in some embodiments, if the first device and the second device are the same device, the first protection interval is the first duration when one of the following conditions is met:

[0111] The first and second devices are base stations, and the first time domain unit is a DL time domain unit, and the second time domain unit is an uplink UL time domain unit; or,

[0112] The first device and the second device are terminals, and the first time domain unit is a UL time domain unit and the second time domain unit is a DL time domain unit; or,

[0113] The first device and the second device are terminals, and the first time domain unit is a UL time domain unit and the second time domain unit is a UL time domain unit.

[0114] In conjunction with the embodiments of the second aspect, in some embodiments, the first device and the second device are not the same device, and the first protection interval is determined based on the self-interference capability of the first device.

[0115] In conjunction with the embodiments of the second aspect, in some embodiments, the self-interference capability includes one of the following:

[0116] The first capability to support simultaneous reception and transmission of signals at the same or different frequencies;

[0117] It does not support the secondary capability of simultaneously receiving and transmitting signals at the same or different frequencies;

[0118] It does not support simultaneous reception and transmission of signals on the same frequency, but supports a third capability: simultaneous reception and transmission of signals on different frequencies.

[0119] In conjunction with the embodiments of the second aspect, in some embodiments, the first device supports a first capability, a second capability, or a third capability, and the first protection interval is a first duration.

[0120] In conjunction with embodiments of the second aspect, in some embodiments, the first device supports a first capability and the first protection interval is zero; or, the first device supports a third capability and the first protection interval is zero at a frequency different from the sensing signal or the sensing signal.

[0121] In conjunction with the embodiments of the second aspect, in some embodiments, the first device supports a first capability, and there is a signal from an interfering device interfering with the first device, wherein the first protection interval is a first duration; or,

[0122] The capability of the first device is the second capability, and the first protection interval is the first duration; or...

[0123] The capability of the first device is the third capability, and the first protection interval is the first duration at the same frequency as the sensing signal or the sensing signal.

[0124] In conjunction with the embodiments of the second aspect, in some embodiments, the first device and the second device are different base stations, and both the first time domain unit and the second time domain unit are DL time domain units; or,

[0125] The first device and the second device are different base stations, and the first time domain unit is a UL time domain unit and the second time domain unit is a DL time domain unit; or,

[0126] The first device is a terminal, the second device is a base station, and the first time domain unit is a DL time domain unit, and the second time domain unit is a UL time domain unit; or...

[0127] The first device is a base station, the second device is a terminal, and the first time domain unit is a UL time domain unit, and the second time domain unit is a DL time domain unit; or...

[0128] The first device and the second device are different terminals, and the first time domain unit is a UL time domain unit and the second time domain unit is a UL time domain unit.

[0129] In conjunction with the embodiments of the second aspect, in some embodiments, multiple first devices with different self-interference capabilities have different first protection intervals.

[0130] In conjunction with the embodiments of the second aspect, in some embodiments, when the first device and the second device are not the same device, and there is a signal sent by an interfering device interfering with the first device, the first protection interval is a first duration.

[0131] In conjunction with the embodiments of the second aspect, in some embodiments, the first device and the second device are different base stations, and the first time domain unit is a DL time domain unit and the second time domain unit is a UL time domain unit; or,

[0132] The first device and the second device are different base stations, and the first time domain unit is a UL time domain unit, and the second time domain unit is a UL time domain unit; or,

[0133] The first device is a terminal, the second device is a base station, and the first time domain element is a DL time domain element, and the second time domain element is a DL time domain element; or...

[0134] The first device is a base station, the second device is a terminal, and the first time domain unit is a UL time domain unit, and the second time domain unit is a UL time domain unit; or...

[0135] The first device and the second device are different terminals, and the first time domain unit is a UL time domain unit and the second time domain unit is a DL time domain unit.

[0136] In conjunction with the embodiments of the second aspect, in some embodiments, the first duration is greater than or equal to a first value; wherein the first value is determined based on the sensing and detection distance of the first device.

[0137] In conjunction with the embodiments of the second aspect, in some embodiments, when the first device and the second device are different terminals, the first duration is greater than or equal to the second value; wherein the second value is determined based on the time advance TA interval between the different terminals and the sensing and detection distance of the first device.

[0138] In conjunction with the embodiments of the second aspect, in some embodiments, the TA interval is the maximum TA allowed in the cell where the first device is located or zero.

[0139] In conjunction with the embodiments of the second aspect, in some embodiments, the first protection interval satisfies at least one of the following:

[0140] If the first protection interval is less than or equal to the second protection interval, the first protection interval is set within the second protection interval;

[0141] The first protection interval is less than or equal to the sum of the second protection interval and the additional protection interval configured.

[0142] The first protection interval is the sum of the second protection interval and the protection interval used for sensing signals;

[0143] The second protection interval is the protection interval between the UL time domain unit and the DL time domain unit.

[0144] Thirdly, embodiments of this disclosure provide a communication system, including a first device and a second device, wherein...

[0145] The first device is configured to implement the method as described in the first aspect;

[0146] The second device is configured to implement the method as described in the second aspect.

[0147] Fourthly, embodiments of this disclosure provide a system frame, including: a first time domain unit, a second time domain unit, and a first guard interval; wherein the first guard interval is disposed between the first time domain unit and the second time domain unit, the first time domain unit is a time domain resource for sensing signals or reflecting sensing signals, and the second time domain unit is a time domain resource for communication signals.

[0148] In the above embodiments, an adapted frame structure is defined for the communication system that integrates sensing and communication, so that sensing signals and communication signals are transmitted in different time-domain resources, thereby reducing the interference of communication signals on sensing signals.

[0149] In conjunction with embodiments of the fourth aspect, in some embodiments, the first protection interval is configured or defined with multiple candidate durations.

[0150] Fifthly, embodiments of this disclosure provide a first device, comprising:

[0151] The transceiver module is used to receive sensing signals sent by the second device in the first time domain unit; wherein, a first guard interval is provided between the first time domain unit and the second time domain unit, and the second time domain unit is a time domain resource for communication signals.

[0152] Sixthly, embodiments of this disclosure provide a second device, comprising:

[0153] A transceiver module is used to send a sensing signal to a first device in a first time domain unit; wherein a first guard interval is provided between the first time domain unit and the second time domain unit, and the second time domain unit is a time domain resource for communication signals.

[0154] In a seventh aspect, embodiments of this disclosure provide a communication device, including:

[0155] One or more processors;

[0156] The communication device is configured to implement the method described in the first aspect or the second aspect.

[0157] Eighthly, embodiments of this disclosure provide a storage medium storing instructions, wherein...

[0158] When the instructions are executed on the communication device, the communication device causes the communication device to perform the method as described in the first aspect or the second aspect.

[0159] Ninthly, embodiments of this disclosure provide a program product, wherein,

[0160] When the program product is executed by a communication device, the communication device performs the method as described in the first aspect or the second aspect.

[0161] In a tenth aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in alternative implementations of the first and second aspects.

[0162] Eleventhly, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the methods described according to optional implementations of the first and second aspects above.

[0163] It is understood that the aforementioned terminals, network devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0164] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0165] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0166] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0167] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0168] In the embodiments disclosed herein, "multiple" refers to two or more.

[0169] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0170] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.

[0171] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc.

[0172] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0173] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0174] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0175] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0176] In some embodiments, the apparatus and device may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "body", etc.

[0177] In some embodiments, "network" can be interpreted as devices included in the network, such as access network devices, core network devices, etc.

[0178] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)," "base station (BS)," "radio base station," or "fixed station." In some embodiments, it may also be understood as "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," or "bandwidth part (BWP)."

[0179] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)," "user terminal," "mobile station (MS)," "mobile terminal (MT)," "subscriber station," "mobile unit," "subscriber unit," "wireless unit," "remote unit," "mobile device," "wireless device," "wireless communication device," "remote device," "mobile subscriber station," "access terminal," "mobile terminal," "wireless terminal," "remote terminal," "handset," "user agent," "mobile client," "client," etc.

[0180] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0181] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0182] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0183] Figure 1a is a schematic diagram of the architecture of a communication system 100 according to an embodiment of the present disclosure.

[0184] As shown in Figure 1a, the communication system 100 includes a first device 101 and a second device 102.

[0185] In this system, the communication system 100 can be a sensing and communication fusion system, i.e., a sensing and communication fusion system. The first device 101 can be a sensing receiving device or a sensing receiving node (Sensing RX node), and the second device 102 can be a sensing transmitting device or a sensing transmitting node (Sensing TX node). In this system, the second device 102 is used to transmit sensing signals, such as transmitting sensing reference signals (Sensing RS); the first device 101 is used to receive sensing signals, or to receive reflected sensing signals reflected by the detected target, such as reflected sensing reference signals (Reflected Sensing RS).

[0186] In some embodiments, the sensing signal, such as sensing RS, sent by the second device 102 can be transmitted via multipath. For example, it can be transmitted directly to the first device 101 through one path, in which case the first device 101 receives the sensing RS; or it can be reflected to the first device 101 through another path after passing through the target, in which case the first device 101 receives the reflected sensing RS.

[0187] In some embodiments, the communication system 100 may further include a network device, which may be a core network device, or include a core network device and an access network device, or one of an access network device and a core network device.

[0188] In some embodiments, the first device 101 may be a terminal or an access network device. The second device 102 may also be a terminal or an access network device.

[0189] Terminal 101 includes, for example, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home, but is not limited thereto.

[0190] The access network equipment includes, for example, nodes or devices that connect terminals to the wireless network. The access network equipment may include, but is not limited to, at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul equipment, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a wireless fidelity (WiFi) system.

[0191] The access network equipment can be composed of a central unit (CU) and a distributed unit (DU). The CU can also be called a control unit. The CU-DU structure can separate the protocol layer of the access network equipment. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU, which is centrally controlled by the CU. However, this is not the only option.

[0192] In some embodiments, the aforementioned core network equipment may be a single device comprising one or more network elements, or it may be multiple devices or a group of devices, each comprising all or part of one or more network elements. Network elements may be virtual or physical. The core network may include, for example, at least one of the Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC). Alternatively, core network equipment may refer to network elements with specific functions, such as Access Management Function (AMF), Service Management Function (SMF), Sensing Function (SF), or Sensing Network Function (SNF).

[0193] In some embodiments, the sensing communication fusion system may include different modes. The first type is mono-static, where the same device or node transmits and receives the sensing RS; the second type is bi-static, where different devices or nodes transmit and receive the sensing RS. During the design process of the ISAC system, the service requirements of both communication and sensing need to be considered simultaneously. Referring to Figure 1b, the above two types of ISAC modes can be specifically divided into the following six types or six modes:

[0194] Mode 1: Base station monostatic transmission and reception (TRP), as shown by number 1 in the figure. Base station A sends a sensing signal. After the sensing signal passes through the environment or objects in the environment, base station A receives and measures the reflected / scattered waves, such as Sensing RS or Reflected Sensing RS.

[0195] Mode 2: Base station A transmits and base station B receives (TRP-TRP bistatic), as shown by number 2 in the figure. Base station A sends a sensing signal, and after the sensing signal passes through the environment or objects in the environment, base station B receives and measures the reflected / scattered waves.

[0196] Mode 3: Terminal transmits to base station (UE-TRP bistatic), as shown by number 3 in the figure. The terminal sends a sensing signal, and after the sensing signal passes through the environment or objects in the environment, the base station receives and measures the reflected / scattered waves.

[0197] Mode 4: Base Station Transmits to UE (TRP-UE bistatic), as shown by number 4 in the figure. The base station sends a sensing signal, which is reflected by the object being measured, and the terminal receives and measures the reflected / scattered wave.

[0198] Mode 5: UE monostatic, as shown by number 5 in the figure. The terminal sends a sensing signal, and after the sensing signal passes through the environment or objects in the environment, the terminal receives and measures the reflected / scattered waves.

[0199] Mode 6: Terminal A transmits and B receives (UE-UE bistatic), as shown by number 6 in the figure. Terminal A sends a sensing signal, and after the sensing signal passes through the environment or objects in the environment, Terminal B receives and measures the reflected / scattered waves.

[0200] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0201] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions provided in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in this disclosure are also applicable to similar technical problems.

[0202] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1a, or to a part thereof, but are not limited thereto.

[0203] The entities shown in Figure 1a are illustrative. The communication system may include all or some of the entities in Figure 1a, or it may include other entities besides those in Figure 1a. The number and form of each entity are arbitrary. The connection relationship between the entities is illustrative. The entities may not be connected to each other or may be connected in any way. The connection may be direct or indirect, wired or wireless.

[0204] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication processing methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0205] In a communication system that integrates sensing and communication, it is necessary to address the issue of how to reuse resources used for sensing and resources used for communication.

[0206] Figure 2a is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2a, the present disclosure relates to a communication method, which includes:

[0207] In step S2101, the second device 102 sends a sensing signal to the first device 101 in the first time domain unit.

[0208] In some embodiments, referring to the description of the foregoing embodiments, the second device 102 is a sensing transmitting device and the first device 101 is a sensing receiving device. The sensing signal transmitted by the second device 102 may be a multipath transmitted signal, such as a signal that can be directly transmitted to the first device 101, or a sensing signal reflected by the target in the environment and transmitted to the first device 101.

[0209] In some embodiments, the first time unit (TU) is a sensing resource or sensing resource, such as a symbol, slot, or frame.

[0210] In some embodiments, a first guard period (GP) is provided between the first time domain unit and the second time domain unit. The second time domain unit is a time domain resource for communication signals or a communication resource (C-resource) for communication transmission. The second time domain unit can be used for the first device 101 to communicate with other devices, or for the first device 101 to communicate with the second device 102, or for the second device 102 to communicate with other devices, or for communication with other devices. For example, taking the second time domain unit as an uplink UL time domain unit, the first device 101 is a terminal, and the second device 102 is a base station. The UL time domain unit can be used for uplink communication transmission by other terminals besides the first device 101.

[0211] The first GP is the temporal protection interval between the Sensing resource and the C-resource, which can be denoted as GP. sensing The communication signal can be the uplink or downlink information transmitted in related communications other than the sensing signal. Understandably, the first GP can be a blank period, protecting the first device 101 from receiving the sensing signal or reflected sensing signal, and it has better interference handling performance than the Cyclic Prefix (CP). The CP is used to successfully demodulate the communication signal even under multipath interference.

[0212] In some embodiments, the sensing communication fusion system may be a time division duplex (TDD) system, where the first time domain unit and the second time domain unit may correspond to a DL TU or a UL TU, respectively.

[0213] In some embodiments, the duration of the first protection interval is defined by a protocol or configured by a network device.

[0214] In one example, the first protection interval is zero, or the first protection interval is a first duration, where the first duration is greater than zero. The value of the first duration may be the same or different in different scenarios, as detailed in the following embodiments. Referring to Figures 2c to 2e, when setting a first GP of an appropriate duration, the reflected sensing signal and the second time-domain unit can be made to not overlap, as detailed in the following embodiments.

[0215] In another example, the first protection interval has multiple candidate durations, wherein the multiple candidate durations include at least a first duration that is zero or greater than zero. For example, the multiple candidate durations may include one or more first durations. As another example, the multiple candidate durations may include zero and one or more first durations.

[0216] In some embodiments, the first device 101 receives a sensing signal or reflects a sensing signal within a first time domain unit.

[0217] In some embodiments, the first device 101 or the second device 102 may select or apply an appropriate first protection interval based on the sensed scenario. According to the modes and TDD systems involved in the foregoing embodiments, there may be various sensed scenarios.

[0218] In the first embodiment, scenarios involved in the mono-static mode are described. Referring to Figure 2c, in the mono-static mode, the first device 101 and the second device 102 are the same device, serving as both a transmitting node and a receiving node for the sensing signal. For example, the second device 102 transmits a Sensing RS, which is reflected by the detected target and received at the first device 101. The propagation delay of the round-trip path is generally shorter than the transmission duration of the Sensing RS. Since the first device 101 and the second device 102 are the same device, there must exist scenarios where this same device needs to simultaneously receive and transmit; that is, in the mono-static mode, the first device 101 or the second device 102 has the ability to simultaneously receive and transmit signals on the same or different frequency resources (i.e., the first capability described below). The scenarios involved in this embodiment may include:

[0219] Case 1-1: The first device 101 and the second device 102 are base stations (BS), and both the first time domain unit and the second time domain unit are DL TUs.

[0220] Case 1-2: The first device 101 and the second device 102 are BS, and the first time domain unit is DL TU and the second time domain unit is UL TU.

[0221] Case 1-3: The first device 101 and the second device 102 are terminals, and the first time domain unit is a UL TU and the second time domain unit is a DL TU.

[0222] Case 1-4: The first device 101 and the second device 102 are terminals, and the first time domain unit is a UL TU and the second time domain unit is a UL TU.

[0223] In the first example of this implementation, in the specific scenario of case 1-1 or case 1-4, the first protection interval can be zero. For example:

[0224] For case 1-1, when the first device 101 and the second device 102 are both BSs (Browser Base Stations), and both the first and second time domain units are DL (Digital Domain Units), the first GP (Gross GP) can be zero. In this case, the DL time domain resource (i.e., the second time domain unit) is connected to the first time domain unit (i.e., the sensing resource) in the time domain. The DL time domain resource is used by the BS to transmit downlink communication signals. Since the BS in mono-static mode possesses a first capability, it can delete or process interference generated by its own transmissions. For example, to avoid interference from the BS's downlink transmissions in the second time domain unit, which would otherwise interfere with the BS's reception of sensing signals in the first time domain unit, the BS supporting this first capability can implement self-interference deletion based on algorithms or devices. Therefore, even if the reflected sensing RS overlaps with the DL time domain resource, it will not affect the BS's reception of the reflected sensing RS. Thus, the first GP can be 0. In this scenario, the impact of downlink transmissions from other network nodes on the BS's reception of sensing signals or reflected sensing signals is not considered.

[0225] Alternatively, for cases 1-4, when the first device 101 and the second device 102 are terminals, and the first time domain unit is a UL TU and the second time domain unit is a UL TU, the first GP can be zero. In this case, no terminal other than the first device transmits UL communication signals. In this situation, the UL time domain resource (i.e., the second time domain unit) is connected to the first time domain unit in the time domain. The UL time domain resource is used for the terminal or other terminals in the same cell to transmit uplink signals. Since the terminal in mono-static mode possesses the first capability, it can delete or process interference generated by its own transmission. Therefore, even if the reflected sensing RS overlaps with the UL time domain resource, it will not affect the terminal's reception of the reflected sensing RS. Thus, the first GP can be 0. In this scenario, the impact of uplink transmissions from other terminals on the reception or reflection of sensing signals by this sensing terminal is not considered. If other terminals transmit uplinks in the second time domain unit, even if the terminal supports the first capability, it can only process interference generated by its own transmission and cannot process interference generated by uplink transmissions from other terminals. Therefore, the first GP is not zero. For example, if it is the first duration, please refer to the description of the following embodiments.

[0226] In a second example of this implementation, in case 1-2, case 1-3, or case 1-4, the first protection interval may be a first duration.

[0227] For example:

[0228] For cases 1-2, when the first device 101 and the second device 102 are both BSs, and the first time domain unit is a DL TU and the second time domain unit is an uplink UL TU, the first GP is of a first duration. The second time domain unit is used for uplink transmission by the terminal; therefore, a certain duration of the first GP is required to avoid interference from the uplink transmission of the second time domain unit on the BS receiving the sensing signal in the first time domain unit. In this case, the interference to the first device 101 receiving the sensing signal is not caused by the first device 101 itself, but by other devices. Referring to Figure 2c, when the first GP is set to an appropriate duration, there is no overlap between the reflected sensing RS and the C-resource (UL TU) time periods.

[0229] Alternatively, for cases 1-3, when the first device 101 and the second device 102 are terminals, and the first time domain unit is a UL TU and the second time domain unit is a DL TU, the first GP is a first duration. The second time domain unit is used for BS downlink transmission, therefore a certain duration of the first GP is required to avoid interference from the downlink transmission of the second time domain unit on the terminal's reception of sensing signals in the first time domain unit. In this case, the interference to the first device 101's reception of sensing signals is not caused by the first device 101 itself, but by other devices. Referring to Figure 2c, when the first GP is set to an appropriate duration, there is no overlap between the reflected sensing RS and the C-resource (DL TU) time periods.

[0230] Alternatively, for cases 1-4, when the first device 101 and the second device 102 are terminals, and both the first and second time domain units are UL TUs, the first GP is of the first duration. Compared to the previous example, in case 1-4 of this example, the first GP of the first duration can be used even when interference from other terminals is present. For example, if a terminal other than the first device 101 performs uplink transmission within the second time domain unit, setting the first GP can prevent it from interfering with the received sensing signal of the first device 101 within the first time domain unit. In this case, the interference to the received sensing signal of the first device 101 is not caused by the first device 101 itself, but by other devices. Referring to Figure 2c, when the first GP of an appropriate duration is set, there is no overlap between the reflected sensing RS and the C-resource (UL TU).

[0231] In this example, the first duration is greater than or equal to a first value; wherein the first value is determined based on the sensing and detection distance of the first device 101.

[0232] In this example, the first duration in the three cases can be the same or different. For example, the first duration in case 1-2 is denoted as T1, the first duration in case 1-3 is denoted as T2, and the first duration in case 1-4 is denoted as T3.

[0233] For example, in case 1-2, T1 is greater than or equal to the first value, where the first value = 2 * d1. max / c, d1max represents the farthest sensing and detection distance of BS, and c represents the speed of light. In cases 1-3, T2 is greater than or equal to the first value, where the first value = 2 * d2. max / c,d2 max This represents the terminal's maximum sensing and detection distance, where c represents the speed of light. In cases 1-4, T3 is greater than or equal to the first value, where the first value = 2 * d3. max / c,d3 maxThis represents the farthest sensing and detection distance of the terminal, and c represents the speed of light.

[0234] Understandably, in some embodiments, the first value can be understood as the maximum possible overlap duration between the first time-domain unit and the second time-domain unit when the first GP is not set. It is assumed that if the first GP is not set, the first time-domain unit and the second time-domain unit will overlap; for example, in case 1-2, the DL TU used for sensing and the UL TU used for communication may have an overlap of T1. overlap The overlap duration, where the UL TU is the resource for the terminal to transmit uplink signals; in cases 1-3, the UL TU used for sensing and the DL TU used for communication may have a T2 overlap duration. overlap The overlap duration, where DL TU is the resource for BS to transmit uplink signals; in cases 1-4, the UL TU used for sensing and the UL TU used for communication may have a T3 overlap. overlap The overlap duration, where UL TU is the resource used by the terminal to transmit uplink signals. The first value can be T1. overlap The maximum value.

[0235] In the above example, the first protection interval satisfies at least one of the following:

[0236] If the first protection interval is less than or equal to the second protection interval, the first protection interval is set within the second protection interval;

[0237] The first protection interval is less than or equal to the sum of the second protection interval and the additional protection interval configured.

[0238] The first protection interval is the sum of the second protection interval and the protection interval used for sensing signals;

[0239] The second protection interval is the protection interval between the UL time domain unit and the DL time domain unit.

[0240] The second protection interval can be the GP set in the TDD system for uplink / downlink switching (DL / UL switching), such as GP. DL->UL If the first GP is GP sensing <=GP DL->UL At this point, the first GP is included within the second GP, and there is no need to reset the GP; if GP sensing >GP DL->UL Based on the second GP, an additional GP needs to be set so that the first GP <= the second GP + the additionally configured GP. Alternatively, when setting the GP between the DL TU and the UL TU, the GP between the DL TU and the UL TU must be greater than or equal to (GP...). sensing +GP DL->ULFor example, in case 1-2, the relationship between the first GP and the second GP, or the GP between the UL TU and the DL TU, can satisfy this part of the description.

[0241] Based on the description of the first implementation method above, the summary of the mono-static mode scenario can be found in Table 2-1.

[0242] Table 2-1

[0243] In the second embodiment, a scenario involving the Bi-static mode is described. Referring to Figure 2d, in the Bi-static mode, the first device 101 and the second device 102 are not the same device. The first device 101 acts as a receiving node for the sensing signal, and the second device 102 acts as a transmitting node for the sensing signal. In Figure 2d, the sensing resource, such as the first time-domain unit, can be the resource for the Tx node to transmit the sensing RS, or it can be the resource for the Rx node to receive the sensing RS or reflected sensing RS; the C-resource, such as the second time-domain unit, can be the resource used by the sensing receiver for communication channel transmission. The scenario involved in this embodiment may include:

[0244] Case 2-1: The first device 101 and the second device 102 are different base stations, such as the first device 101 being BS1 and the second device 102 being BS2. Both the first time domain unit and the second time domain unit are DL TUs. In this scenario, it is assumed that BS1 and BS2 are synchronized in the time domain, that is, the boundaries of the TUs are aligned.

[0245] Case 2-2: The first device 101 and the second device 102 are different base stations, such as the first device 101 being BS1 and the second device 102 being BS2. The first time domain unit is UL TU and the second time domain unit is DL TU. In this scenario, it is assumed that BS1 and BS2 are synchronized in the time domain, that is, the boundaries of the TUs are aligned. However, it is not required that the two base stations use the same TDD DL / UL pattern in the TDD system. For example, in this case, when BS1 is transmitting sensing RS in DL TU, BS2 is simultaneously in UL TU.

[0246] Case 2-3: The first device 101 and the second device 102 are different base stations, such as the first device 101 being BS1 and the second device 102 being BS2, the first time domain unit being DL TU and the second time domain unit being UL TU.

[0247] Case 2-4: The first device 101 and the second device 102 are different base stations, such as the first device 101 being BS1 and the second device 102 being BS2, the first time domain unit being UL TU and the second time domain unit being UL TU.

[0248] Case 2-5: The first device 101 is a terminal, the second device 102 is a base station (BS), and the first time domain unit is a DL TU and the second time domain unit is a DL TU.

[0249] Case 2-6: The first device 101 is a terminal, the second device 102 is a base station (BS), and the first time domain unit is a DL TU and the second time domain unit is a UL TU.

[0250] Case 2-7: The first device 101 is a base station (BS), the second device 102 is a terminal, and the first time domain unit is a UL TU and the second time domain unit is a DL TU.

[0251] Case 2-8: The first device 101 is a base station (BS), the second device 102 is a terminal, and the first time domain unit is a UL TU and the second time domain unit is a UL TU.

[0252] Case 2-9: The first device 101 and the second device 102 are different terminals, such as the first device 101 being UE2 and the second device 102 being UE1, and the first time domain unit being UL TU and the second time domain unit being UL TU.

[0253] Case 2-10: The first device 101 and the second device 102 are different terminals, such as the first device 101 being UE2 and the second device 102 being UE1, and the first time domain unit being UL TU and the second time domain unit being DL TU.

[0254] In the first example of this implementation, when the first device and the second device are not the same device, i.e., in Bi-static mode, the first protection interval can be determined based on the self-interference capability of the first device. This example can be applied to Case 2-1, Case 2-2, Case 2-6, Case 2-7, or Case 2-9 described above.

[0255] The self-interference capability is used to indicate whether a signal has the ability to delete or reduce interference caused by its own transmitted signal, which is interference caused by its own transmitted signal to its own received signal.

[0256] In this example, the self-interference capability includes the following:

[0257] Capability 1: Supports simultaneous reception and transmission of signals at the same or different frequencies.

[0258] It does not support the second capability (Capability 2) of simultaneously receiving and transmitting signals at the same or different frequencies;

[0259] It does not support simultaneous reception and transmission of signals on the same frequency, but supports a third capability (Capability 3) for simultaneous reception and transmission of signals on different frequencies.

[0260] Specifically, for Capability 1, the first device 101 supports simultaneous transmission and reception on resources of the same or different frequencies, possesses excellent self-interference cancellation capabilities, and can reduce self-interference caused by its own transmitted signals to below a first threshold, or achieve an isolation level for self-interference above a second threshold, or control the deterioration of the signal-to-interference plus-noise ratio (SINR) caused by self-interference to within a third threshold. The reflected sensing signal and the sensing signal have the same frequency.

[0261] Regarding Capability 2, the first device 101 lacks the ability to simultaneously transmit and receive on different or the same frequency resources, and does not have good self-interference cancellation capabilities. When the first device 101 is receiving, it cannot simultaneously transmit on the same or different frequency resources. Here, different frequencies can refer to different frequency resources on the same frequency band or carrier, or different frequency resources on different bands / carriers.

[0262] For Capability 3, the first device 101 does not have the ability to simultaneously transmit and receive on the same frequency resource, but it can simultaneously transmit and receive on different frequency resources. The different frequency resources used for transmission and reception may require a frequency domain interval. The first device 101 does not have good self-interference cancellation capability; when the first device 101 is receiving, it cannot simultaneously transmit on the same frequency resource. However, if transmission and reception are on different frequency domain resources, or if there is a sufficient frequency domain interval between the transmission and reception frequencies, then the first device 101 can simultaneously transmit and receive on different frequency resources.

[0263] In one optional example, regardless of whether the first device 101 supports a first capability, a second capability, or a third capability, the first protection interval can be used as the first duration. In this optional example, for different scenarios such as Case 2-1, Case 2-2, Case 2-6, Case 2-7, or Case 2-9, and for first devices 101 with different capabilities, the first protection interval can be configured or defined according to the lowest capability. This allows it to be applied to first devices 101 with all capabilities, saving configuration signaling resources or simplifying the definition method. In this optional example, if the first duration has different duration values, the duration value of the first duration corresponding to the lowest capability is the largest or greater than a certain set value. For example, based on capabilities, a device with the first capability can support a first protection interval (GP) of a first duration A, a device with the second capability can support a first GP of a first duration B, and a device with the third capability can support a first GP of a first duration C. The capabilities, from lowest to highest, are: second capability, third capability, and first capability, meaning the first capability is the strongest and the second capability is the weakest. The durations, from smallest to largest, are: A, C, B, meaning duration B is the longest and duration A is the shortest (e.g., A can be zero in some scenarios). In this embodiment, for first devices 101 with different capabilities, the first protection interval can be configured or defined as the longest duration value, i.e., the first duration B, which can be applied to both low-capability and high-capability devices.

[0264] Referring to Figure 2d, taking case 2-1 as an example, when setting the first GP of appropriate duration, there is no overlap between the reflected sensing RS and the C-resource (DL TU) during the designated time period. Taking case 2-2 as an example, when setting the first GP of appropriate duration, there is no overlap between the reflected sensing RS and the C-resource (DL TU) during the designated time period. Taking case 2-6 as an example, for devices supporting the first capability, when setting the first GP of appropriate duration, there is no overlap between the reflected sensing RS and the C-resource (UL TU) during the designated time period; for devices supporting the second capability, when setting the first GP of appropriate duration, there is no overlap between the reflected sensing RS and the C-resource (UL TU) during the designated time period. Taking case 2-7 as an example, when setting the first GP of appropriate duration, there is no overlap between the reflected sensing RS and the C-resource (DL TU) during the designated time period. Taking case 2-9 as an example, when setting the first GP of appropriate duration, there is no overlap between the reflected sensing RS and the C-resource (UL TU) during the designated time period.

[0265] In another alternative example of this model, multiple first devices 101 with different self-interference capabilities have different first protection intervals. For example, different first protection intervals or multiple candidate durations of the first protection interval can be configured through protocol definition or network configuration, and the first devices 101 with different capabilities can be applied to one or more of the first protection intervals or candidate durations.

[0266] For example, in Case 2-1, Case 2-2, Case 2-6, Case 2-7 or Case 2-9, if the first device 101 supports the first capability, the first protection interval is zero;

[0267] Alternatively, in Case 2-1, Case 2-2, Case 2-6, Case 2-7, or Case 2-9, if the first device 101 supports a third capability, the first protection interval is zero at a frequency different from or from the sensing signal.

[0268] For example, in Case 2-1, Case 2-2, Case 2-6, Case 2-7 or Case 2-9, if the first device 101 supports the first capability and there is a signal from an interfering device interfering with the first device, the first protection interval is the first duration; referring to Figure 2d, when the first GP is set to an appropriate duration, there is no overlap between the reflectedsensingRS and C-resource time periods.

[0269] Alternatively, in Case 2-1, Case 2-2, Case 2-6, Case 2-7, or Case 2-9, if the capability of the first device is the second capability, the first protection interval is the first duration;

[0270] Alternatively, in Case 2-1, Case 2-2, Case 2-6, Case 2-7 or Case 2-9, if the capability of the first device is the third capability, the first protection interval is the first duration at the same frequency as the sensing signal or the sensing signal.

[0271] In this example, the first duration can be greater than or equal to the first value. Referring to the description of the above embodiment, the first value is determined based on the sensing and detection distance of the first device 101. The first duration can be the same or different in different cases. For example, the first duration in case 2-1 or case 2-2 is denoted as T4, and the first duration in case 2-7 can be the same as T4. Taking case 2-1 or case 2-2 as an example, T4 can be greater than or equal to the first value, where the first value = 2 * d4. max / c, d4max represents the maximum sensing and detection range of BS2, and c represents the speed of light. Other cases can be found in the descriptions herein or in the foregoing embodiments, or in the specific embodiments described below.

[0272] Alternatively, in this example, where the first device 101 and the second device 102 are different terminals (as in case 2-9), the first duration is greater than or equal to the second value. The second value is determined based on the time advance TA interval between the different terminals and the sensing detection distance of the first device. Referring to Figure 2e, when the first GP is set to an appropriate duration, there is no overlap between the reflected sensing RS and the C-resource time periods. Referring to Figure 2e, when the first device 101 and the second device 102 are different terminals, the TAs corresponding to the different terminals are different, and the interval between their TAs can be denoted as TAgap.

[0273] Taking case 2-9 as an example, assume two terminals are UEs under the same BS coverage, both have completed uplink and downlink synchronization with the BS, and the two UEs have different TAs. When the first protection interval is the first duration, if the first device 101 supports the first capability but needs to consider interference from other UEs, or if the first device 101 supports the second or third capability, the first duration can be greater than or equal to the second value, where the second value = 2 * d3. max / c+TA interval, d3 max This represents the terminal's maximum sensing and detection distance, where c represents the speed of light, and the TA interval can be the maximum TA value spacing between the transmitting and receiving UEs. maxgap The TA interval can be the maximum allowed TA in the cell where the first device is located, or zero. For example:

[0274] If a UE with a smaller TA sends a sensingRS to a UE with a larger TA, that is, when the first device 101 is a UE with a larger TA, the second value = 2*d3 max / c+TA maxgap , among which, TA maxgap This is actually the maximum TA allowed in this cell. If a UE with a larger TA sends a sensingRS to a UE with a smaller TA, that is, when the first device 101 is a UE with a smaller TA, the second value = 2*d3. max / c-TA mingap , among which, TA mingap =0, that is, the second value = 2*d3 max / c. Alternatively, without distinguishing the TA values ​​of the two UEs, the second value is calculated as 2*d3. max / c+TA maxgap calculate.

[0275] In some embodiments, in the example of determining the first protection interval based on self-interference capability, the first device 101 may also perform step S2102.

[0276] In step S2102, the first device 101 sends capability information to the network device 103.

[0277] In some embodiments, capability information is used to indicate the self-interference capability supported by the first device.

[0278] In some embodiments, this capability information can be reported separately or reported synchronously with other terminal capabilities.

[0279] In some embodiments, the first device 101 may indicate the supported capability as a first capability, a second capability, or a third capability by using different bit values ​​or a bitmap.

[0280] In some embodiments, network device 103 may be a core network device such as a sensing function SF network element, or an access network device.

[0281] In some embodiments, network device 103 receives capability information and can perform reasonable scheduling or configuration in conjunction with the capabilities of first device 101, such as configuring a suitable first protection interval based on the self-interference capability of first device 101.

[0282] In some embodiments, step S2102 may be performed before step S2101.

[0283] In the second example of the second embodiment described above, when the first device and the second device are not the same device (i.e., in Bi-static mode), and there is a signal from an interfering device interfering with the first device, the first protection interval is a first duration. This example can be applied to Case 2-3, Case 2-4, Case 2-5, Case 2-8, or Case 2-10 described above. Referring to Figures 2d to 2e, when the first GP is set to an appropriate duration, there is no overlap between the reflected sensing RS and the C-resource time period.

[0284] Optionally, the interfering device can refer to other devices besides the first device 101 that need to perform uplink or downlink transmission. For example, if the first device 101 is a terminal, the interfering device can refer to other terminals besides that terminal. That is, when there is interference from other devices besides the first device 101 itself, the capability of the first device 101 can be disregarded, and a first protection interval of a first duration can be selected.

[0285] In this example, the first duration can be greater than or equal to the first value. Referring to the description of the above embodiment, the first value is determined based on the sensing and detection distance of the first device 101. The first duration can be the same or different in different cases. For example, the first duration in case 2-3 or case 2-4 can be greater than or equal to the first value, where the first value = 2 * d1. max / c, d1max represents the farthest sensing detection distance of BS2, and c represents the speed of light. Other cases can be referred to the descriptions here or in the foregoing embodiments, or to the descriptions in the specific embodiments below. Referring to Figure 2d, taking case 2-3 as an example, when the first GP is set to an appropriate duration, there is no overlap between the reflected sensing RS and the C-resource (DL TU). Taking case 2-4 as an example, when the first GP is set to an appropriate duration, there is no overlap between the reflected sensing RS and the C-resource (UL TU).

[0286] Alternatively, in this example, where the first device 101 and the second device 102 are different terminals (e.g., case 2-10), the first duration is greater than or equal to the second value. The second value is determined based on the timing advance TA interval between the different terminals and the sensing detection distance of the first device. Referring to Figure 2e, in case 2-10, when the first GP is set to an appropriate duration, there is no overlap between the reflected sensing RS and the C-resource (DL TU). Again referring to Figure 2e, taking case 2-10 as an example, assuming both terminals are UEs under the same BS coverage and have completed uplink / downlink synchronization with the BS, and the TAs of the two UEs are different, the first duration of the first protection interval can be greater than or equal to the second value, where the second value = 2 * d³. max / c+TA interval, d3 max This represents the terminal's maximum sensing and detection distance, where c represents the speed of light, and the TA interval can be the maximum TA value spacing between the transmitting and receiving UEs. maxgap The TA interval can be the maximum allowed TA in the cell where the first device is located, or zero. For example:

[0287] If a UE with a smaller TA sends a sensing RS to a UE with a larger TA, that is, when the first device 101 is a UE with a larger TA, the second value = 2*d3. max / c+TA maxgap , among which, TA maxgap This is actually the maximum TA allowed in this cell. If a UE with a larger TA sends a sensing RS to a UE with a smaller TA, that is, when the first device 101 is a UE with a smaller TA, the second value = 2*d3. max / c-TA mingap , among which, TA mingap =0, that is, the second value = 2*d3 max / c. Alternatively, without distinguishing the TA values ​​of the two UEs, the second value is calculated as 2*d3. max / c+TA maxgap calculate.

[0288] Based on the description of the second implementation method above, the summary of the Bi-static mode scenario can be found in Table 2-2.

[0289] Table 2-2

[0290] In some embodiments, the configuration of the first GP can prevent communication scheduling within the first GP, thereby interfering with the first device 101 receiving sensing signals. Communication scheduling can also be prevented within the first GP by combining other methods, such as using a base station scheduling algorithm to ensure no uplink or downlink scheduling occurs during that time period, or by notifying the network device 103 in step S2103 to avoid uplink or downlink scheduling during that time period.

[0291] In step S2103, the first device 101 sends an instruction message to the network device 103.

[0292] In some embodiments, network device 103 is the network device corresponding to a neighboring cell on the same frequency.

[0293] In some embodiments, the indication information is used to instruct network device 103 to suspend uplink scheduling for cell edge users within a first protection interval, or the indication information is used to instruct network device 103 to suspend downlink scheduling within a first protection interval.

[0294] In some embodiments, the first device 101 may send an indication message to the network device 103 to indicate that scheduling that the first device 101 does not expect will not be performed.

[0295] In some embodiments, the first device does not expect the existence of uplink communication signals during the first guard interval. For example, in cases 1-2, 1-4, 2-3, 2-4, 2-6, 2-8, or 2-9, the first device 101 does not expect uplink scheduling to occur during the first guard interval. Taking case 1-2 as an example, in order to ensure that the BS can successfully receive the reflected RS, the first GP does not expect the transmission of UL communication signals. This can be achieved by using a base station scheduling algorithm to ensure that there is no uplink scheduling during this period, or by the BS notifying the co-frequency neighboring cell in step S2103 to at least avoid scheduling of edge users of the neighboring cell on the first GP, thereby reducing the impact of the uplink transmission of the UE of the neighboring cell on the BS's reception of the reflected sensing RS. Here, the BS may require that there is no UL communication signal transmission at the frequency position co-frequency with the sensing RS / reflected RS in the first GP, and does not make any requirements for the frequency portion that is not co-frequency.

[0296] Alternatively, the first device does not expect downlink communication signals to be transmitted within the first guard interval. For example, in cases 1-3, 2-1, 2-2, 2-5, 2-7, or 2-10, the first device 101 does not expect downlink scheduling to exist within the first guard interval. Taking case 2-10 as an example, in order to ensure that the UE can successfully receive the reflected RS during this overlapping period, the first GP does not expect the existence of DL communication signals. This can be achieved by using a base station scheduling algorithm to ensure that there is no downlink scheduling during this period, or by the UE notifying neighboring cells on the same frequency to avoid DL scheduling on the first GP through step S2103, thereby reducing the impact of downlink transmission from neighboring cells on the UE's reception of the reflected sensing RS. The UE may require that there be no DL communication signal transmission at the frequency location on the same frequency as the sensing RS / reflected RS in the first GP, but not for frequencies that are different frequencies.

[0297] In this embodiment, the uplink communication signal and the sensing signal or the reflected sensing signal are at the same frequency; or, the downlink communication signal and the sensing signal or the reflected sensing signal are at the same frequency.

[0298] In some embodiments, step S2103 may be performed before step S2101 or S2102.

[0299] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", and "field" can be used interchangeably.

[0300] In some embodiments, “get,” “obtain,” “receive,” “transmit,” “bidirectional transmission,” and “send and / or receive” can be used interchangeably and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining through self-processing, or autonomous implementation, among other meanings.

[0301] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transfer,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0302] In some embodiments, the terms “radio”, “wireless”, “radio access network (RAN)”, “access network (AN)”, and “RAN-based” can be used interchangeably.

[0303] In some embodiments, terms such as “moment,” “point in time,” “time,” and “time location” can be used interchangeably, as can terms such as “duration,” “segment,” “time window,” “window,” and “time.”

[0304] In some embodiments, the terms "component carrier (CC)," "cell," "frequency carrier," and "carrier frequency" can be used interchangeably.

[0305] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.

[0306] In some embodiments, the determination or judgment can be made by a value represented by 1 bit (0 or 1), or by a true or false value (boolean), or by a comparison of numerical values ​​(e.g., a comparison with a predetermined value), but is not limited thereto.

[0307] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the receiver to respond to the sent content.

[0308] The method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2103. For example, the method includes step S2101.

[0309] In some embodiments, other alternative implementations may be described before or after the specification corresponding to FIG2a.

[0310] Figure 2b is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2b, the present disclosure relates to a communication method, which includes:

[0311] In step S2201, the first device 101 sends capability information to the network device 103.

[0312] In some embodiments, referring to the description of the foregoing embodiments, the first device 101 is a sensing and receiving device, which may be a base station or a terminal.

[0313] In some embodiments, network device 103 may be a core network device or an access network device, such as a sensing function SF network element in a core network device.

[0314] In some embodiments, capability information is used to indicate the self-interference capability supported by the first device 101.

[0315] In some embodiments, the content of the self-interference capability can be referred to the implementation of step S2102 in FIG2a. For example, the self-interference capability includes one of the following:

[0316] The first capability to support simultaneous reception and transmission of signals at the same or different frequencies;

[0317] It does not support the secondary capability of simultaneously receiving and transmitting signals at the same or different frequencies;

[0318] It does not support simultaneous reception and transmission of signals on the same frequency, but supports a third capability: simultaneous reception and transmission of signals on different frequencies.

[0319] In some embodiments, network device 102 receives the capability information and can perform corresponding scheduling or configuration.

[0320] In step S2202, network device 103 sends configuration information to first device 101.

[0321] In some embodiments, the configuration information can be used to configure a first GP. Referring to the description of the foregoing embodiments, the first GP is a time-domain protection interval between sensing resources and communication resources. Here, the sensing resource is a time-domain resource used for receiving or transmitting sensing signals, and the communication resource is a time-domain resource used for receiving or transmitting communication signals.

[0322] In some embodiments, the configuration information can configure multiple candidate durations for the first protection interval. In each sensing communication scenario, the first device 101 selects or uses one or more of these durations based on different scenario requirements. Alternatively, in each sensing communication scenario, the network device 103 can indicate a candidate duration for the application in that scenario based on the capabilities of the first device 101.

[0323] In some embodiments, step S2202 can be omitted, for example, by defining multiple candidate durations for the first protection interval through a protocol. The first device 101 selects or uses the duration defined in the protocol according to different scenario requirements.

[0324] In some embodiments, the multiple candidate durations may include zero and a first duration greater than zero. The first duration may have multiple values.

[0325] In some embodiments, multiple candidate durations may include multiple first durations greater than zero, and different first durations may be applicable to different scenarios.

[0326] In some embodiments, the network configuration or the protocol defines two cases for the first protection interval, such as the first protection interval being zero, or the first protection interval being a first duration, where the first duration is greater than zero.

[0327] In some embodiments, in conjunction with the description of the foregoing embodiments, the duration of the first protection interval can be defined by a protocol or configured by the network device 103. During the definition or configuration process, the determination of the first protection interval can meet certain conditions or requirements. Alternatively, during the selection of the first protection interval by the first device 101, it can be selected based on certain requirements or scenarios, as detailed in the description of the relevant embodiments in Figure 2a.

[0328] In some embodiments, the first device 101 receives configuration information to learn about possible first protection intervals.

[0329] The method involved in the embodiments of this disclosure may include at least one of steps S2201 to S2203. For example, the method includes step S2201.

[0330] In some embodiments, other alternative implementations may be described before or after the specification corresponding to FIG2b.

[0331] Figures 2c and 2d illustrate a system frame according to an embodiment of the present disclosure, such as a frame structure applicable to a sensing and communication fusion system. Referring to Figures 2c and 2d, the frame structure may include sensing resources such as a first time-domain unit, communication resources such as a second time-domain unit, and a first GP disposed between the first time-domain unit and the second time-domain unit.

[0332] In some embodiments, the first time-domain unit is a time-domain resource for sensing signals or reflecting sensing signals. For example, the first time-domain unit can be used by the first device 101 to receive sensing signals sent by the second device 102. The second time-domain unit is a time-domain resource for communication signals, for example, for the first device 101, the second device 102, or other devices to send communication signals.

[0333] In some embodiments, the first protection interval is configured or defined with multiple candidate durations.

[0334] In some embodiments, the first protection interval is zero, or the first protection interval is a first duration, wherein the first duration is greater than zero.

[0335] In some embodiments, the first protection interval has a plurality of candidate durations, wherein the plurality of candidate durations includes at least a first duration that is zero or greater than zero.

[0336] In some embodiments, the duration of the first protection interval is defined by a protocol or configured by a network device.

[0337] In this embodiment, the definition or configuration of the first GP can be determined based on the relevant scenario, such as configuring different candidate durations according to devices with different self-interference capabilities; or the first GP can be defined or configured with different values ​​to be applicable to different scenarios or to devices that support different self-interference capabilities. For example, in conjunction with the scenarios in the following embodiments or referring to the description of the scenarios involved in the embodiments of FIG2a or FIG2b, a suitable first GP can be applied in different scenarios.

[0338] In some embodiments, if the first device and the second device are the same device, the first protection interval is zero when one of the following conditions is met: the first device and the second device are base stations, and both the first time domain unit and the second time domain unit are downlink DL time domain units; or, the first device and the second device are terminals, and the first time domain unit is a UL time domain unit and the second time domain unit is a UL time domain unit, wherein no terminal other than the first device sends UL communication signals.

[0339] In some embodiments, if the first device and the second device are the same device, the first protection interval is the first duration when one of the following conditions is met: the first device and the second device are base stations, and the first time domain unit is a DL time domain unit and the second time domain unit is an uplink UL time domain unit; or, the first device and the second device are terminals, and the first time domain unit is a UL time domain unit and the second time domain unit is a DL time domain unit; or, the first device and the second device are terminals, and the first time domain unit is a UL time domain unit and the second time domain unit is a UL time domain unit.

[0340] In some embodiments, the first device and the second device are not the same device, and the first protection interval is determined based on the self-interference capability of the first device.

[0341] In some embodiments, the self-interference capability includes one of the following: a first capability to support simultaneous reception and transmission of signals at the same or different frequencies; a second capability not to support simultaneous reception and transmission of signals at the same or different frequencies; and a third capability not to support simultaneous reception and transmission of signals at the same frequency but supporting simultaneous reception and transmission of signals at different frequencies.

[0342] In some embodiments, the first device supports a first capability, a second capability, or a third capability, and the first protection interval is a first duration.

[0343] In some embodiments, the first device supports a first capability where the first protection interval is zero; or, the first device supports a third capability where the first protection interval is zero at a frequency different from or from the sensing signal.

[0344] In some embodiments, the first device supports a first capability, and there is a signal from an interfering device interfering with the first device, and the first protection interval is a first duration; or, the first device has a second capability, and the first protection interval is a first duration; or, the first device has a third capability, and the first protection interval is a first duration at the same frequency as the sensing signal or the sensing signal.

[0345] In some embodiments, the first device and the second device are different base stations, and both the first time domain unit and the second time domain unit are DL time domain units; or, the first device and the second device are different base stations, and the first time domain unit is a UL time domain unit and the second time domain unit is a DL time domain unit; or, the first device is a terminal and the second device is a base station, and the first time domain unit is a DL time domain unit and the second time domain unit is a UL time domain unit; or, the first device is a base station and the second device is a terminal, and the first time domain unit is a UL time domain unit and the second time domain unit is a DL time domain unit; or, the first device and the second device are different terminals, and both the first time domain unit and the second time domain unit are UL time domain units.

[0346] In some embodiments, multiple first devices with different self-interference capabilities have different first protection intervals.

[0347] In some embodiments, when the first device and the second device are not the same device, and there is a signal from an interfering device interfering with the first device, the first protection interval is a first duration.

[0348] In some embodiments, the first device and the second device are different base stations, and the first time domain unit is a DL time domain unit and the second time domain unit is a UL time domain unit; or, the first device and the second device are different base stations, and the first time domain unit is a UL time domain unit and the second time domain unit is a UL time domain unit; or, the first device is a terminal and the second device is a base station, and the first time domain unit is a DL time domain unit and the second time domain unit is a DL time domain unit; or, the first device is a base station and the second device is a terminal, and the first time domain unit is a UL time domain unit and the second time domain unit is a UL time domain unit; or, the first device and the second device are different terminals, and the first time domain unit is a UL time domain unit and the second time domain unit is a DL time domain unit.

[0349] In some embodiments, the first duration is greater than or equal to a first value; wherein the first value is determined based on the sensing detection distance of the first device.

[0350] In some embodiments, when the first device and the second device are different terminals, the first duration is greater than or equal to the second value; wherein the second value is determined based on the time advance TA interval between the different terminals and the sensing detection distance of the first device.

[0351] In some embodiments, the TA interval is the maximum TA allowed in the cell where the first device is located, or zero.

[0352] In some embodiments, the first device does not expect the existence of transmitted uplink communication signals within the first guard interval; or, the first device does not expect the existence of transmitted downlink communication signals within the first guard interval.

[0353] In some embodiments, the uplink communication signal and the sensing signal or the reflected sensing signal are at the same frequency; or, the downlink communication signal and the sensing signal or the reflected sensing signal are at the same frequency.

[0354] In some embodiments, the first protection interval satisfies at least one of the following:

[0355] If the first protection interval is less than or equal to the second protection interval, the first protection interval is set within the second protection interval;

[0356] The first protection interval is less than or equal to the sum of the second protection interval and the additional protection interval configured.

[0357] The first protection interval is the sum of the second protection interval and the protection interval used for sensing signals;

[0358] The second protection interval is the protection interval between the UL time domain unit and the DL time domain unit.

[0359] In some embodiments, other optional implementations described before or after the specification corresponding to this embodiment may be referred to.

[0360] Figure 3 is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 3, this embodiment of the present disclosure relates to a communication method executed by a first device 101, the method comprising:

[0361] Step S3101: Send capability information.

[0362] In some embodiments, the implementation of step S3101 can be found in the implementation of step S2102 in FIG2a or step S2201 in FIG2b, and will not be repeated here.

[0363] Step S3102: Send instruction information.

[0364] In some embodiments, the implementation of step S3102 can be referred to the implementation of step S2103 in FIG2a, and will not be repeated here.

[0365] Step S3103: Receive sensing signals.

[0366] In some embodiments, the implementation of step S3103 can be referred to the implementation of step S2101 in FIG2a, and will not be repeated here.

[0367] In some embodiments, other optional implementations may be described before or after the specification corresponding to FIG3.

[0368] Figure 4 is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 4, this embodiment of the present disclosure relates to a communication method executed by a first device 101, the method comprising:

[0369] Step S4101: Send a sensing signal.

[0370] In some embodiments, the implementation of step S4101 can be found in the implementation of step S2101 in FIG2a, and will not be repeated here.

[0371] In some embodiments, other optional implementations may be described before or after the specification corresponding to FIG3.

[0372] In some embodiments, other optional implementations may be described before or after the specification corresponding to Figure 4.

[0373] This disclosure provides a method for setting a protection interval between sensing resources and communication resources in a sensor fusion system, which requires limiting the scheduling of communication channels during the protection interval period. This method ensures that sensing nodes in the sensor fusion system can smoothly execute sensing tasks. Some specific embodiments are listed below.

[0374] This embodiment includes two types of nodes: a Sensing TX node, which is used to send sensing RS, corresponding to the second device 102 obtained in the previous embodiment; and a Sensing RX node, which is used to receive sensing RS reflected by the detected target, corresponding to the first device 101 in the previous embodiment.

[0375] The Sensing RX node has various capabilities, such as Capability 1, Capability 2, or Capability 3 in the aforementioned embodiments. Referring to Tables 2-3, a summary of the relevant scenarios involved in the embodiments of this disclosure is provided, illustrating whether a GP is required in each scenario.

[0376] Table 2-3

[0377] Based on the table above, different implementation scenarios exist for different models.

[0378] Example 1 Mono-static mode

[0379] In mono-static mode, the Sensing TX node transmits a Sensing RS signal, which is reflected by the detected object and then received back at the Sensing TX node. The round-trip propagation delay is generally shorter than the transmission time of the Sensing RS signal. Therefore, there are inevitably scenarios where the Sensing TX node needs to transmit and receive simultaneously, as shown in Figure 2c. C-resource is the communication resource used for communication transmission, and GP is the time-domain guard interval, which is the guard interval between the Sensing RS resource and the C-resource. Therefore, mono-static mode necessarily requires the Sensing RX node to have the ability to transmit and receive simultaneously on resources of the same or different frequencies.

[0380] Depending on the specific scenario, GP can be zero or non-zero. To distinguish it from the GP used for DL / UL switching below, the protection interval used between Sensing and C-resource will be denoted as GP. sensing The GP of DL / UL switching is denoted as GP. DL->UL .

[0381] Case 1-1: Sensing Tx / Rx Node=BS, Sensing resource=DL TU, C-resource=DL TU.

[0382] In this case, without a GP (GP Resource Connector), the Sensing RS is connected to the DL (Deep Link Resource) resource, used by the BS (Base Station) to transmit downlink signals. Since the BS has the ability to transmit and receive simultaneously on resources of the same or different frequencies, even if the reflected sensing RS and DL resources overlap, it will not affect the BS's reception of the reflected sensing RS. Therefore, if we do not consider the impact of downlink transmissions from other network nodes on the BS's reception of reflected sensing RS on downlink resources, then a GP is not needed between the Sensing RS resource and the DL resource. sensing .

[0383] Case 1-2: Sensing Tx / Rx Node=BS, Sensing resource=DL TU, C-resource=UL TU.

[0384] In this case, without a GP (GP), the reflected sensing RS will overlap with the UL TU (UL TU), which is the resource used by the UE for uplink signal transmission. Assume the duration of the overlap is T1. overlap To ensure the BS can successfully receive the reflected RS during the overlapping period, it is best if there is no UL signal transmission during this period (more specifically, this could mean no UL signal transmission at frequencies that are the same as the sensing RS / reflected RS during the overlapping period; this requirement does not apply to frequencies that are different). To ensure no uplink signal transmission occurs during this overlapping period, the following methods can be used:

[0385] (1) Ensure that there is no uplink scheduling during the overlapping period by using the base station scheduling algorithm.

[0386] (2) Through protocol definition or network configuration, a GP with a duration of T1 is sometimes provided after Sensing RS resources. sensing Theoretically, T1 should be greater than the possible T1. overlap The maximum value of T1. overlap The maximum value and the farthest detection distance d1 max Related to T1 overlap =2*d1 max / c, where c is the speed of light. With a properly set GP duration, it's clear that the reflected sensing RS and UL TU will not have overlapping time periods.

[0387] (3) Furthermore, the BS can also notify neighboring cells on the same frequency to avoid scheduling of at least the edge users of the neighboring cells during the overlapping period, so as to reduce the impact of the uplink transmission of the UE of the neighboring cells on the BS receiving reflected sensing RS.

[0388] Case 1-2 is a TDD system, with the original GP spacing between the DL TU and UL TU. DL->UL If the required GP sensing <=GP DL->UL Then there is no need to set an additional protection interval, if GP sensing >GP DL->UL Therefore, additional protection intervals need to be set so that GP DL->UL The total duration including additional protection intervals must be greater than or equal to GP. sensing Alternatively, another interpretation is that the interval between sensing resource (DL TU) and C-resource (UL TU) should be GP. sensing +GP DL->UL .

[0389] Case 1-3: Sensing Tx / Rx Node=UE, Sensing resource=UL TU, C-resource=DL TU

[0390] In this case, without a GP (GP), the reflected sensing RS (Reflected Sensing RS) will overlap with the DL TU (Deep Stream Transmission Unit) resource, which is the resource used by the BS (Base Station) for downlink signal transmission. Assume the duration of the overlap is T2. overlap To ensure the UE can successfully receive the reflected RS during the overlapping period, it is best if there is no DL signal transmission during this period (more specifically, it can be required that there is no DL signal transmission at frequencies that are on the same frequency as the sensing RS / reflected RS during the overlapping period; this requirement does not apply to frequencies that are not on the same frequency). To ensure that there is no downlink signal transmission during this overlapping period, the following methods can be used:

[0391] (1) Ensure that there is no downlink scheduling during the overlapping period by using the base station scheduling algorithm.

[0392] (2) Through protocol definition or network configuration, a GP of duration T2 may follow the Sensing RS resource. Theoretically, T2 should be greater than the possible T2. overlap The maximum value of T2. overlap The maximum value and the farthest detection distance d2 maxRegarding T2 overlap =2*d2 max / c, where c is the speed of light. With a properly set GP duration, it's clear that the reflected sensing RS and DL TU will not have overlapping time periods.

[0393] (3) Furthermore, the BS can also notify neighboring cells on the same frequency to avoid DL scheduling during the overlapping period, so as to reduce the impact of downlink transmission of neighboring cells on the UE's reception of reflected sensing RS.

[0394] Case 1-4: Sensing Tx / Rx Node=UE, Sensing resource=UL TU, C-resource=UL TU

[0395] In this case, the Sensing RS is connected to the UL resource, which is used by the UE to transmit uplink signals. Since the UE has the ability to transmit and receive simultaneously on resources of the same or different frequencies, even if the reflected sensing RS and the UL resource overlap, it will not affect the UE's reception of the reflected sensing RS. If we do not consider other UEs affecting this UE, then a GP is not required between the Sensing RS resource and the UL resource.

[0396] In another implementation, to avoid the impact of uplink transmissions from other UEs on the UE's reception of reflected sensing RS and to ensure SINR, the following approach can also be considered (more specifically, it can be that there is no UL signal transmission at the frequency position that is on the same frequency as sensing RS / reflected RS during the overlapping period, and no requirement is made for the frequency part that is not on the same frequency):

[0397] (1) The base station scheduling algorithm ensures that there is no uplink scheduling (uplink transmission of other UEs) during the overlapping period.

[0398] (2) Through protocol definition or network configuration, a GP with a duration of T3 is sometimes provided after Sensing RS resources. sensing Theoretically, T3 should be greater than the possible T3. overlap The maximum value of T3. overlap The maximum value and the farthest detection distance d3 max Related to T3 overlap =2*d3 max / c, where c is the speed of light. With a properly set GP duration, it's clear that the reflected sensing RS and UL TU will not have overlapping time periods.

[0399] (3) Furthermore, the BS can also notify neighboring cells on the same frequency to avoid uplink scheduling of at least the edge users of the neighboring cells during the overlapping period, so as to reduce the impact of the uplink transmission of the UE of the neighboring cells on the UE's reception of reflected sensing RS.

[0400] Example 2: Bi-static mode

[0401] As shown in Figure 2d, sensing resource refers to the resources used by the Tx node to send sensing RS, which is also the resources used by the Rx node to receive reflected sensing RS. C-resource refers to the resource used by the Rx side for communication channel transmission.

[0402] Case 2-1: Sensing Tx Node = BS1, Sensing Rx Node = BS2, Sensing resource = DL TU, C-resource = DL TU. Assume that BS1 / BS2 are synchronized in the time domain, that is, the boundaries of TU are aligned.

[0403] Without a GP (GP), the Sensing resource is connected to the DL (DL) resource, used for BS2 downlink signal transmission. Based on the BS2's self-interference cancellation capability, it is classified as follows:

[0404] Capability 1: Even if reflected sensing RS and DL resources overlap (BS2 receives sensing RS while simultaneously transmitting downlink signals), it will not affect BS's reception of reflected sensing RS. Therefore, if the downlink transmissions of other network nodes do not affect BS's reception of reflected sensing RS on downlink resources, then no GP is required between sensing RS resources and DL resources. sensing .

[0405] Capability 2: Without GP, reflected sensing RS will overlap with DL TU resources, which are used by BS2 for downlink signal transmission. Assume the duration of the overlap is T4. overlap To ensure that BS2 can successfully receive reflected RS during the overlapping period, there must be no downlink signal transmission in the overlapping area; that is, BS2 cannot transmit downlink signals during the overlapping period. To ensure that there is no downlink signal transmission in the overlapping area, the following methods can be used:

[0406] (1) Ensure that there is no downlink scheduling during the overlapping period by using the base station scheduling algorithm.

[0407] (2) Through protocol definition or network configuration, there is sometimes a GP with a duration of T4 after the Sensing resource. Theoretically, T4 should be greater than the possible T4. overlap The maximum value. T4 overlap The maximum value and the farthest detection distance d4 max Related to T4 overlap =2*d4 max / c, where c is the speed of light. With a properly set GP duration, it's clear that the reflected sensing RS and DL TU will not have overlapping time periods.

[0408] (3) Furthermore, BS2 can also notify neighboring cells to avoid DL scheduling during the overlapping period, so as to reduce the impact of downlink transmission of neighboring cells on BS2 reception of reflected sensing RS.

[0409] Capability 3: For frequencies that overlap with the frequency positions of the sensing RS / reflected sensing RS, since BS2 cannot transmit and receive simultaneously, the required processing method is the same as that of Capability 2 above.

[0410] For frequencies that do not overlap with the frequency positions of the sensing RS / reflected sensing RS, since BS2 can transmit and receive simultaneously, the required processing method is the same as that described in Capability 1 above.

[0411] In one implementation, regardless of whether the frequency overlaps or does not overlap with the frequency position of the sensing RS / reflected sensing RS, it is directly processed according to the lowest capability, i.e., capability2.

[0412] Case 2-2: Sensing Tx Node = BS1, Sensing Rx Node = BS2, Sensing resource = UL TU, C-resource = DL TU. Assume BS1 / BS2 are synchronized in the time domain, meaning the boundaries of their TUs are aligned. However, the same TDD DL / UL pattern is not required in the TDD system (corresponding to this case, BS1 sends a sensing RS on DL TU, but BS2 simultaneously sends a UL TU).

[0413] If there is no GP (GP), the DL (DL) resource is connected to the Sensing resource and is used for BS2 (BS2) transmission of downlink signals. The BS2's self-interference cancellation capability is classified as follows (or refer to the description in case 2-1):

[0414] Capability 1: Even if reflected sensing RS and DL resources overlap, it will not affect the BS's reception of reflected sensing RS. Therefore, if we do not consider the impact of downlink transmissions from other network nodes on the BS's reception of reflected sensing RS on downlink resources, then no GP is required between the sensing RS resource and the DL resource. sensing .

[0415] Capability 2: Without GP, reflected sensing RS will overlap with DL TU resources, which are used by BS2 for downlink signal transmission. Assume the duration of the overlap is T4. overlap To ensure that BS2 can successfully receive reflected RS during the overlapping period, there must be no downlink signal transmission in the overlapping area; that is, BS2 cannot transmit downlink signals during the overlapping period. To ensure that there is no downlink signal transmission in the overlapping area, the following methods can be used:

[0416] (1) Ensure that there is no downlink scheduling during the overlapping period by using the base station scheduling algorithm.

[0417] (2) Through protocol definition or network configuration, there is sometimes a GP with a duration of T4 after the Sensing resource. Theoretically, T4 should be greater than the possible T4. overlap The maximum value. T4 overlap The maximum value and the farthest detection distance d4 max Related to T4 overlap =2*d4 max / c, where c is the speed of light. With a properly set GP duration, it's clear that the reflected sensing RS and DL TU will not have overlapping time periods.

[0418] (3) Furthermore, BS2 can also notify neighboring cells to avoid DL scheduling during the overlapping period, so as to reduce the impact of downlink transmission from neighboring cells on BS2's reception of reflected sensing RS.

[0419] Capability 3: For frequencies that overlap with the frequency positions of the sensing RS / reflected sensing RS, since BS2 cannot transmit and receive simultaneously, the required processing method is the same as that of Capability 2 above.

[0420] For frequencies that do not overlap with the frequency positions of the sensing RS / reflected sensing RS, since BS2 can transmit and receive simultaneously, the required processing method is the same as that described in Capability 1 above.

[0421] In one implementation, regardless of whether the frequency overlaps or does not overlap with the frequency position of the sensing RS / reflected sensing RS, it is directly processed according to the lowest capability, i.e., capability2.

[0422] Case 2-3: Sensing Tx Node=BS1, Sensing Rx Node=BS2, Sensing resource=DL TU, C-resource=UL TU

[0423] This case can be referred to as case 1-2. This case does not involve the receiving end simultaneously sending and receiving, so it is not necessary to distinguish between the three capabilities.

[0424] In this case, without a GP (GP), the reflected sensing RS will overlap with the UL TU (UL TU), which is the resource used by the UE for uplink signal transmission. Assume the duration of the overlap is T1. overlap To ensure the BS can successfully receive the reflected RS during the overlapping period, it is best if there is no UL signal transmission during this period (more specifically, this could mean no UL signal transmission at frequencies that are the same as the sensing RS / reflected RS during the overlapping period; this requirement does not apply to frequencies that are different). To ensure no uplink signal transmission occurs during this overlapping period, the following methods can be used:

[0425] (1) Ensure that there is no uplink scheduling during the overlapping period by using the base station scheduling algorithm.

[0426] (2) Through protocol definition or network configuration, a GP with a duration of T1 is sometimes provided after Sensing RS resources. sensing Theoretically, T1 should be greater than the possible T1. overlap The maximum value of T1. overlap The maximum value and the farthest detection distance d1 max Related to T1overlap =2*d1 max / c, where c is the speed of light. With a properly set GP duration, it's clear that the reflected sensing RS and DL TU will not have overlapping time periods.

[0427] (3) Furthermore, the BS can also notify neighboring cells on the same frequency to avoid scheduling of at least the edge users of the neighboring cells during the overlapping period, so as to reduce the impact of the uplink transmission of the UE of the neighboring cells on the BS receiving reflected sensing RS.

[0428] Case 2-3 is a TDD system, where the sensing resource (DL TU) and C-resource (UL TU) are originally connected by a GP. DL->UL If the required GP sensing <=GP DL->UL Then there is no need to set an additional protection interval, if GP sensing >GP DL->UL Therefore, additional protection intervals need to be set so that GP DL->UL The total duration including additional protection intervals must be greater than or equal to GP. sensing Alternatively, another interpretation is that the interval between sensing resource (DL TU) and C-resource (UL TU) should be GP. sensing +GP DL->UL .

[0429] Case 2-4:Sensing Tx Node=BS1, Sensing Rx Node=BS2, Sensing resource=UL TU, C-resource=UL TU

[0430] This case does not involve the receiving end simultaneously sending and receiving, so there is no need to distinguish between the three capabilities.

[0431] In this case, without a GP (GP), the reflected sensing RS will overlap with the UL TU (UL TU), which is the resource used by the UE for uplink signal transmission. Assume the duration of the overlap is T1. overlapTo ensure the BS can successfully receive the reflected RS during the overlapping period (ensuring a good SINR), it is best if there is no UL signal transmission during this overlapping period (more specifically, it can be required that there is no UL signal transmission at the frequency position that is the same as the sensing RS / reflected RS during the overlapping period; no requirements are made for frequencies that are different). To ensure that there is no uplink signal transmission during this overlapping period, the following methods can be used:

[0432] (1) Ensure that there is no uplink scheduling during the overlapping period by using the base station scheduling algorithm.

[0433] (2) Through protocol definition or network configuration, a GP with a duration of T1 is sometimes provided after Sensing RS resources. sensing Theoretically, T1 should be greater than the possible T1. overlap The maximum value of T1. overlap The maximum value and the farthest detection distance d1 max Related to T1 overlap =2*d1 max / c, where c is the speed of light. With a properly set GP duration, it's clear that the reflected sensing RS and UL TU will not have overlapping time periods.

[0434] (3) Furthermore, the BS can also notify neighboring cells on the same frequency to avoid scheduling of at least the edge users of the neighboring cells during the overlapping period, so as to reduce the impact of the uplink transmission of the UE of the neighboring cells on the BS receiving reflected sensing RS.

[0435] Case 2-5: Sensing Tx Node=BS, Sensing Rx Node=UE, Sensing resource=DL TU, C-resource=DL TU

[0436] In this scenario, the UE is considered a terminal under the BS coverage, and uplink and downlink synchronization has been established with the BS. The description of this case can be found in cases 1-3. This case does not involve the simultaneous receiving and transmitting at the receiving end, so it is not necessary to distinguish between the three capabilities.

[0437] In this case, without a GP (GP), the reflected sensing RS (Reflected Sensing RS) will overlap with the DL TU (Deep Stream Transmission Unit) resource, which is the resource used by the BS (Base Station) for downlink signal transmission. Assume the duration of the overlap is T2. overlapTo ensure the UE can successfully receive the reflected RS during the overlapping period, it is best if there is no DL signal transmission during this period (more specifically, it can be required that there is no DL signal transmission at frequencies that are on the same frequency as the sensing RS / reflected RS during the overlapping period; this requirement does not apply to frequencies that are not on the same frequency). To ensure that there is no downlink signal transmission during this overlapping period, the following methods can be used:

[0438] (1) Ensure that there is no downlink scheduling during the overlapping period by using the base station scheduling algorithm.

[0439] (2) Through protocol definition or network configuration, a GP of duration T2 may follow the Sensing RS resource. Theoretically, T2 should be greater than the possible T2. overlap The maximum value of T2. overlap The maximum value and the farthest detection distance d2 max Regarding T2 overlap =2*d2 max / c, where c is the speed of light. With a properly set GP duration, it's clear that the reflected sensing RS and DL TU will not have overlapping time periods.

[0440] (3) Furthermore, the BS can also notify neighboring cells on the same frequency to avoid DL scheduling during the overlapping period, so as to reduce the impact of downlink transmission of neighboring cells on the UE's reception of reflected sensing RS.

[0441] Case 2-6: Sensing Tx Node=BS, Sensing Rx Node=UE, Sensing resource=DL TU, C-resource=UL TU

[0442] If there is no GP (GP), the Sensing resource is connected to the UL (UL) resource, which is used for UE to transmit uplink signals. The UE's self-interference cancellation capability is classified as follows:

[0443] Capability 1: Even if reflected sensing RS and UL resources overlap (the UE transmits uplink signals while receiving sensing RS), it will not affect the UE's reception of reflected sensing RS. Therefore, if we do not consider the impact of downlink transmissions from other network nodes on the BS's reception of reflected sensing RS on downlink resources, then no GP is required between sensing RS resources and UL resources. sensing .

[0444] However, to avoid the impact of uplink transmissions from other UEs on the UE's reception of reflected sensing RS, the following approach can also be considered (more specifically, it can be to require that there is no UL signal transmission at the frequency position that is on the same frequency as sensing RS / reflected RS during the overlapping period, and no requirements are made for the frequency part that is not on the same frequency):

[0445] (1) The base station scheduling algorithm ensures that there is no uplink scheduling (uplink transmission of other UEs) during the overlapping period.

[0446] (2) Through protocol definition or network configuration, a GP with a duration of T3 is sometimes provided after Sensing RS resources. sensing Theoretically, T3 should be greater than the possible T3. overlap The maximum value of T3. overlap The maximum value and the farthest detection distance d3 max Related to T3 overlap =2*d3 max / c, where c is the speed of light. With a properly set GP duration, it's clear that the reflected sensing RS and UL TU will not have overlapping time periods.

[0447] (3) Furthermore, the BS can also notify neighboring cells on the same frequency to avoid scheduling of at least the edge users of the neighboring cells during the overlapping period, so as to reduce the impact of the uplink transmission of the UE in the neighboring cells on the UE's reception of reflected sensing RS.

[0448] This is a TDD system, and there was originally a GP between the sensing resource (DL TU) and the C-resource (UL TU). DL->UL If the required GP sensing <=GP DL->UL Then there is no need to set an additional protection interval, if GP sensing >GP DL->UL Therefore, additional protection intervals need to be set so that GP DL->UL The total duration including additional protection intervals must be greater than or equal to GP. sensing .

[0449] Capability 2: Without GP, reflected sensing RS will overlap with UL TU resources, which are used by the UE for uplink signal transmission. Assume the duration of the overlap is T4. overlapTo ensure the UE can successfully receive the reflected RS during the overlapping period, there must be no UL signal transmission in the overlapping area; that is, the UE cannot send UL signals during the overlapping period. Additionally, to guarantee SINR, other UEs should also avoid sending UL signals during the overlapping period (more specifically, this could mean that there should be no UL signal transmission at frequencies that are on the same frequency as the sensing RS / reflected RS during the overlapping period; this requirement does not apply to frequencies that are not on the same frequency). The following approach can be considered:

[0450] (1) The base station scheduling algorithm ensures that there is no uplink scheduling (including uplink transmission of this UE and other UEs in the same cell) during the overlapping period.

[0451] (2) Through protocol definition or network configuration, a GP with a duration of T3 is sometimes provided after Sensing RS resources. sensing Theoretically, T3 should be greater than the possible T3. overlap The maximum value of T3. overlap The maximum value and the farthest detection distance d3 max Related to T3 overlap =2*d3 max / c, where c is the speed of light. With a properly set GP duration, it's clear that the reflected sensing RS and UL TU will not have overlapping time periods.

[0452] (3) Furthermore, the BS can also notify neighboring cells on the same frequency to avoid uplink scheduling for at least the edge users of the neighboring cells during the overlapping period, so as to reduce the impact of uplink transmission of UEs in neighboring cells on UE reception of reflected sensing RS.

[0453] This is a TDD system, and there was originally a GP between the sensing resource (DL TU) and the C-resource (UL TU). DL->UL If the required GP sensing <=GP DL->UL Then there is no need to set an additional protection interval, if GP sensing >GP DL->UL Therefore, additional protection intervals need to be set so that GP DL->UL The total duration including additional protection intervals must be greater than or equal to GP. sensing Alternatively, another interpretation is that the interval between sensing resource (DL TU) and C-resource (UL TU) should be GP. sensing +GP DL->UL .

[0454] Capability 3: For frequencies that overlap with the frequency locations of sensing RS / reflected sensing RS, since the UE cannot transmit and receive simultaneously, the required processing method is the same as that of Capability 2 above.

[0455] For frequencies that do not overlap with the frequency locations of the sensing RS / reflected sensing RS, since the UE can transmit and receive simultaneously, the required processing method is the same as that described in Capability 1 above.

[0456] In one implementation, regardless of whether the frequency overlaps or does not overlap with the frequency position of the sensing RS / reflected sensing RS, it is directly processed according to the lowest capability, i.e., capability2.

[0457] Case 2-7: Sensing Tx Node=UE, Sensing Rx Node=BS, Sensing resource=UL TU, C-resource=DL TU

[0458] In this scenario, the UE is considered a terminal within the BS coverage area, having established uplink and downlink synchronization with the BS. The description of this case can be found in case 2-1. Without a GP (GP), the DL (DL) resource is connected to the Sensing resource and is used by the BS to transmit downlink signals. Based on the BS's self-interference cancellation capability, the following classifications are made:

[0459] Capability 1: Even if reflected sensing RS and DL resources overlap (BS2 receives sensing RS while simultaneously transmitting downlink signals), it will not affect BS's reception of reflected sensing RS. Therefore, if the downlink transmissions of other network nodes do not affect BS's reception of reflected sensing RS on downlink resources, then no GP is required between sensing RS resources and DL resources. sensing .

[0460] Capability 2: Without GP, reflected sensing RS will overlap with DL TU resources, which are resources used by BS for downlink signal transmission. Assume the duration of the overlap is T4. overlapTo ensure the BS can successfully receive the reflected RS during the overlapping period, there must be no downlink signal transmission in the overlapping area; that is, the BS cannot send downlink signals during the overlapping period. To ensure no downlink signal transmission in the overlapping area, the following methods can be used:

[0461] (1) Ensure that there is no downlink scheduling during the overlapping period by using the base station scheduling algorithm.

[0462] (2) Through protocol definition or network configuration, there is sometimes a GP with a duration of T4 after the Sensing resource. Theoretically, T4 should be greater than the possible T4. overlap The maximum value. T4 overlap The maximum value and the farthest detection distance d4 max Related to T4 overlap =2*d4 max / c, where c is the speed of light.

[0463] (3) Furthermore, the BS can also notify neighboring cells to avoid DL scheduling during the overlapping period, so as to reduce the impact of downlink transmission from neighboring cells on the BS's reception of reflected sensing RS.

[0464] Capability 3: For frequencies that overlap with the frequency location of the sensing RS / reflected sensing RS, since the BS cannot transmit and receive simultaneously, the required processing method is the same as that of Capability 2 above.

[0465] For frequencies that do not overlap with the frequency positions of the sensing RS / reflected sensing RS, since the BS can transmit and receive simultaneously, the required processing method is the same as that described in Capability 1 above.

[0466] In one implementation, regardless of whether the frequency overlaps or does not overlap with the frequency position of the sensing RS / reflected sensing RS, it is directly processed according to the lowest capability, i.e., capability2.

[0467] Case 2-8: Sensing Tx Node=UE, Sensing Rx Node=BS, Sensing resource=UL TU, C-resource=UL TU

[0468] The description of this case can be referenced from that of case 2-4. This case does not involve the situation where the receiving end is simultaneously sending and receiving, so it is not necessary to distinguish between the three capabilities.

[0469] In this case, without a GP (GP), the reflected sensing RS will overlap with the UL TU (UL TU), which is the resource used by the UE for uplink signal transmission. Assume the duration of the overlap is T1. overlap To ensure the BS can successfully receive the reflected RS during the overlapping period (ensuring a good SINR), it is best if there is no UL signal transmission during this overlapping period (more specifically, it can be required that there is no UL signal transmission at the frequency position that is the same as the sensing RS / reflected RS during the overlapping period; no requirements are made for frequencies that are different). To ensure that there is no uplink signal transmission during this overlapping period, the following methods can be used:

[0470] (1) Ensure that there is no uplink scheduling during the overlapping period by using the base station scheduling algorithm.

[0471] (2) Through protocol definition or network configuration, a GP with a duration of T1 is sometimes provided after Sensing RS resources. sensing Theoretically, T1 should be greater than the possible T1. overlap The maximum value of T1. overlap The maximum value and the farthest detection distance d1 max Related to T1 overlap =2*d1 max / c, where c is the speed of light. With a properly set GP duration, it's clear that the reflected sensing RS and UL TU will not have overlapping time periods.

[0472] (3) Furthermore, the BS can also notify neighboring cells on the same frequency to avoid scheduling of at least the edge users of the neighboring cells during the overlapping period, so as to reduce the impact of the uplink transmission of the UEs in the neighboring cells on the BS's reception of reflected sensing RS.

[0473] Case 2-9: Sensing Tx Node = UE1, Sensing Rx Node = UE2, Sensing resource = UL TU, C-resource = UL TU. Assume the two UEs are under the same BS coverage and have completed uplink and downlink synchronization with the BS. Although both UEs are synchronized with the BS, their different TAs need to be considered. As shown in Figure 2e, the transmitting and receiving UEs have different TAs.

[0474] If there is no GP (GP), the Sensing resource is connected to the UL (UL) resource, which is used for UE to transmit uplink signals. The UE's self-interference cancellation capability is classified as follows:

[0475] Capability 1: Even if reflected sensing RS and UL resources overlap (the UE transmits uplink signals while receiving sensing RS), it will not affect UE2's reception of reflected sensing RS. Therefore, if the downlink transmission of other network nodes does not affect the BS's reception of reflected sensing RS on downlink resources, then no GP is needed between sensing RS resources and UL resources. sensing .

[0476] However, to avoid the impact of uplink transmissions from other UEs on UE2's reception of reflected sensing RS, the following approach can also be considered (more specifically, it could be to require that there be no UL signal transmission at the frequency position that is on the same frequency as sensing RS / reflected RS during the overlapping period, while no requirements are made for the frequency portion that is not on the same frequency):

[0477] (1) The base station scheduling algorithm ensures that there is no uplink scheduling (uplink transmission of other UEs) during the overlapping period.

[0478] (2) Through protocol definition or network configuration, a GP with a duration of T3 is sometimes provided after Sensing RS resources. sensing Theoretically, T3 should be greater than the possible T3. overlap The maximum value of T3. overlap The maximum value and the maximum distance between the TA value of the transmitting and receiving UEs maxgap and the furthest detection distance d3 max related:

[0479] a) If a UE with a smaller TA sends a sensing RS to a UE with a larger TA, then the maximum T3 is... overlap =2*d3 max / c+TA maxgap c is the speed of light; TA maxgap In reality, it's the maximum allowed TA in this community.

[0480] b) If a UE with a larger TA sends a sensing RS to a UE with a smaller TA, then the maximum T3 is... overlap =2*d3 max / c-TA mingap c is the speed of light; obviously TA mingap =0, so the maximum T3 in this case is 0. overlap =2*d3 max / c.

[0481] c) Alternatively, the TA size of the transmitting and receiving UEs can be disregarded, and T3 can be used directly.overlap =2*d3 max / c+TA maxgap .

[0482] (3) Furthermore, the BS can also notify neighboring cells on the same frequency to avoid scheduling of at least the edge users of the neighboring cells during the overlapping period, so as to reduce the impact of the uplink transmission of the UE of the neighboring cells on the UE's reception of reflected sensing RS.

[0483] Capability 2: Without GP, reflected sensing RS will overlap with UL TU resources, which are used by the UE for uplink signal transmission. Assume the duration of the overlap is T4. overlap To ensure the UE can successfully receive the reflected RS during the overlapping period, there must be no UL signal transmission in the overlapping area; that is, the UE cannot send UL signals during the overlapping period. Additionally, to guarantee SINR, other UEs should also avoid sending UL signals during the overlapping period (more specifically, this could mean that there should be no UL signal transmission at frequencies that are on the same frequency as the sensing RS / reflected RS during the overlapping period; this requirement does not apply to frequencies that are not on the same frequency). The following approach can be considered:

[0484] (1) The base station scheduling algorithm ensures that there is no uplink scheduling (including uplink transmission of this UE and other UEs in the same cell) during the overlapping period.

[0485] (2) Through protocol definition or network configuration, a GP with a duration of T3 is sometimes provided after Sensing RS resources. sensing Theoretically, T3 should be greater than the possible T3. overlap The maximum value of T3. overlap The maximum value and the maximum distance between the TA value of the transmitting and receiving UEs maxgap and the furthest detection distance d3 max related

[0486] a) If a UE with a smaller TA sends a sensing RS to a UE with a larger TA, then the maximum T3 is... overlap =2*d3 max / c+TA maxgap c is the speed of light; TA maxgap In reality, it's the maximum allowed TA in this community.

[0487] b) If a UE with a larger TA sends a sensing RS to a UE with a smaller TA, then the maximum T3 is... overlap =2*d3 max / c-TA mingapc is the speed of light; obviously TA mingap =0, so the maximum T3 in this case is 0. overlap =2*d3 max / c.

[0488] c) Alternatively, the TA size of the transmitting and receiving UEs can be disregarded, and T3 can be used directly. overlap =2*d3 max / c+TA maxgap .

[0489] With a GP of appropriate duration, it is clear that the reflected sensing RS and UL TU will not have overlapping time periods.

[0490] (3) Furthermore, the BS can also notify neighboring cells on the same frequency to avoid uplink scheduling of at least the edge users of the neighboring cells during the overlapping period, so as to reduce the impact of the uplink transmission of the UE of the neighboring cells on the UE's reception of reflected sensing RS.

[0491] Capability 3: For frequencies that overlap with the frequency locations of sensing RS / reflected sensing RS, since the UE cannot transmit and receive simultaneously, the required processing method is the same as that of Capability 2 above.

[0492] For frequencies that do not overlap with the frequency locations of the sensing RS / reflected sensing RS, since the UE can transmit and receive simultaneously, the required processing method is the same as that described in Capability 1 above.

[0493] In one implementation, regardless of whether the frequency overlaps or does not overlap with the frequency position of the sensing RS / reflected sensing RS, it is directly processed according to the lowest capability, i.e., capability2.

[0494] Case 2-10: Sensing Tx Node=UE1, Sensing Rx Node=UE2, Sensing resource=UL TU, C-resource=DL TU

[0495] This case does not involve the receiving end simultaneously sending and receiving, so there is no need to distinguish between the three capabilities.

[0496] In this case, without a GP (GP), the reflected sensing RS (Reflected Sensing RS) will overlap with the DL TU (Deep Stream Transmission Unit) resource, which is the resource used by the BS (Base Station) for downlink signal transmission. Assume the duration of the overlap is T2.overlap To ensure the UE can successfully receive the reflected RS during the overlapping period, it is best if there is no DL signal transmission during this period (more specifically, it can be required that there is no DL signal transmission at frequencies that are on the same frequency as the sensing RS / reflected RS during the overlapping period; this requirement does not apply to frequencies that are not on the same frequency). To ensure that there is no downlink signal transmission during this overlapping period, the following methods can be used:

[0497] (1) The base station scheduling algorithm ensures that there is no downlink scheduling during the overlapping period.

[0498] (2) Through protocol definition or network configuration, a GP with a duration of T3 is sometimes provided after Sensing RS resources. sensing Theoretically, T3 should be greater than the possible T3. overlap The maximum value of T3. overlap The maximum value and the maximum distance between the TA value of the transmitting and receiving UEs maxgap and the furthest detection distance d3 max related:

[0499] a) If a UE with a smaller TA sends a sensing RS to a UE with a larger TA, then the maximum T3 is... overlap =2*d3 max / c+TA maxgap c is the speed of light; TA maxgap In reality, it's the maximum allowed TA in this community.

[0500] b) If a UE with a larger TA sends a sensing RS to a UE with a smaller TA, then the maximum T3 is... overlap =2*d3 max / c-TA mingap c is the speed of light; obviously TA mingap =0, so the maximum T3 in this case is 0. overlap =2*d3 max / c.

[0501] c) Alternatively, the TA size of the transmitting and receiving UEs can be disregarded, and T3 can be used directly. overlap =2*d3 max / c+TA maxgap .

[0502] With a GP of appropriate duration, it is clear that the reflected sensing RS and DL TU will not have overlapping time periods.

[0503] (3) Furthermore, the BS can also notify neighboring cells on the same frequency to avoid DL scheduling during the overlapping period, so as to reduce the impact of downlink transmission of neighboring cells on the UE's reception of reflected sensing RS.

[0504] This disclosure also provides an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Alternatively, another apparatus is provided that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0505] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0506] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0507] Figure 5a is a schematic diagram of the structure of a terminal proposed in an embodiment of this disclosure. This terminal can be applied to either the first device 101 or the second device 102. As shown in Figure 5a, the terminal 5100 may include at least one of a transceiver module 5101, a processing module 5102, etc.

[0508] In some embodiments, for the first device 101, the transceiver module 5101 is used to receive a sensing signal sent by the second device in a first time domain unit; wherein, a first guard interval is provided between the first time domain unit and the second time domain unit, and the second time domain unit is a time domain resource for communication signals.

[0509] In some embodiments, for the second device 102, the transceiver module 5101 is used to send a sensing signal to the first device in the first time domain unit; wherein, a first guard interval is provided between the first time domain unit and the second time domain unit, and the second time domain unit is a time domain resource for communication signals.

[0510] Optionally, the transceiver module 5101 is used to perform at least one of the communication steps such as sending and / or receiving performed by the terminal 101 in any of the above methods, which will not be described in detail here. Optionally, the processing module 5102 is used to perform at least one of the other steps performed by the terminal 101 in any of the above methods, which will not be described in detail here.

[0511] Figure 5b is a schematic diagram of the network device proposed in an embodiment of this disclosure. This network device can be applied to either the first device 101 or the second device 102. As shown in Figure 5b, the network device 5200 may include at least one of a transceiver module 5201, a processing module 5202, etc.

[0512] In some embodiments, for the first device 101, the transceiver module 5201 is used to receive a sensing signal sent by the second device in a first time domain unit; wherein, a first guard interval is provided between the first time domain unit and the second time domain unit, and the second time domain unit is a time domain resource for communication signals.

[0513] In some embodiments, for the second device 102, the transceiver module 5201 is used to send a sensing signal to the first device in the first time domain unit; wherein, a first guard interval is provided between the first time domain unit and the second time domain unit, and the second time domain unit is a time domain resource for communication signals.

[0514] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, which may be separate or integrated. Optionally, the transceiver module may be interchangeable with a transceiver.

[0515] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module. Optionally, the processing module may be interchangeable with a processor.

[0516] Figure 6a is a schematic diagram of the structure of the communication device 6100 proposed in an embodiment of this disclosure. The communication device 6100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 6100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0517] As shown in Figure 6a, the communication device 6100 includes one or more processors 6101. The processor 6101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 6100 can be used to execute any of the above methods. Optionally, one or more processors 6101 can be used to invoke instructions to cause the communication device 6100 to execute any of the above methods.

[0518] In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps such as sending and / or receiving in the above method, and the processor 6101 performs at least one of the other steps. In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc., can be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., can be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0519] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data. Optionally, all or part of the memories 6103 may be located outside the communication device 6100. In optional embodiments, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuits 6104 are connected to the memories 6103 and can be used to receive data from the memories 6103 or other devices, and to send data to the memories 6103 or other devices. For example, the interface circuits 6104 can read data stored in the memories 6103 and send that data to the processor 6101.

[0520] The communication device 6100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 6100 described in this disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6a. The communication device may be a standalone device or a part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0521] Figure 6b is a schematic diagram of the structure of chip 6200 according to an embodiment of this disclosure. For cases where the communication device 6100 can be a chip or a chip system, please refer to the schematic diagram of chip 6200 shown in Figure 6b, but it is not limited thereto.

[0522] Chip 6200 includes one or more processors 6201. Chip 6200 is used to perform any of the methods described above.

[0523] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 6200 further includes one or more memories 6203 for storing data. Optionally, all or part of the memories 6203 may be located outside chip 6200. Optionally, interface circuit 6202 is connected to memory 6203, and interface circuit 6202 can be used to receive data from memory 6203 or other devices, and interface circuit 6202 can be used to send data to memory 6203 or other devices. For example, interface circuit 6202 can read data stored in memory 6203 and send the data to processor 6201.

[0524] In some embodiments, the interface circuit 6202 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method. For example, the interface circuit 6202 performing the communication steps, such as sending and / or receiving, in the above-described method means that the interface circuit 6202 performs data interaction between the processor 6201, the chip 6200, the memory 6203, or the transceiver device. In some embodiments, the processor 6201 performs at least one of the other steps.

[0525] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0526] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 6100, cause the communication device 6100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0527] This disclosure also provides a program product that, when executed by the communication device 6100, causes the communication device 6100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0528] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods. Industrial applicability

[0529] A first guard interval can be set between the first time domain unit used for transmitting sensing signals and the second time domain unit used for transmitting communication signals. This allows sensing signals and communication signals to be transmitted on their respective time domain resources in a communication system that integrates sensing and communication, reducing interference with sensing signals and enabling the communication system to perform sensing tasks smoothly and improve the experience of sensing services.

Claims

1. A communication method, performed by a first device, the method comprising: The first time domain unit receives the sensing signal sent by the second device; wherein, a first guard interval is provided between the first time domain unit and the second time domain unit, and the second time domain unit is a time domain resource used for communication signals.

2. The method of claim 1, wherein The first protection interval is zero, or the first protection interval is a first duration, where the first duration is greater than zero.

3. The method as described in claim 1, wherein, The first protection interval has multiple candidate durations, wherein the multiple candidate durations include at least a first duration that is zero or greater than zero.

4. The method of claim 1, wherein, The duration of the first protection interval is defined by the protocol or configured by the network device.

5. The method as described in any one of claims 2 to 4, wherein, If the first device and the second device are the same device, the first protection interval is zero when one of the following conditions is met: The first device and the second device are base stations, and both the first time domain unit and the second time domain unit are downlink DL time domain units; or, The first device and the second device are terminals, and the first time domain unit is a UL time domain unit and the second time domain unit is a UL time domain unit, wherein no terminal other than the first device sends UL communication signals.

6. The method as described in any one of claims 2 to 4, wherein, If the first device and the second device are the same device, the first protection interval shall be the first duration if one of the following conditions is met: The first device and the second device are base stations, and the first time domain unit is a DL time domain unit, and the second time domain unit is an uplink UL time domain unit; or, The first device and the second device are terminals, and the first time domain unit is a UL time domain unit, and the second time domain unit is a DL time domain unit; or, The first device and the second device are terminals, and the first time domain unit is a UL time domain unit and the second time domain unit is a UL time domain unit.

7. The method as described in any one of claims 2 to 4, wherein, The first device and the second device are not the same device, and the first protection interval is determined based on the self-interference capability of the first device.

8. The method of claim 7, wherein, The self-interference capability includes one of the following: The first capability to support simultaneous reception and transmission of signals at the same or different frequencies; It does not support the secondary capability of simultaneously receiving and transmitting signals at the same or different frequencies; It does not support simultaneous reception and transmission of signals on the same frequency, but supports a third capability: simultaneous reception and transmission of signals on different frequencies.

9. The method of claim 8, wherein, The first device supports the first capability, the second capability, or the third capability, and the first protection interval is a first duration.

10. The method of claim 8, wherein, The first device supports the first capability, and the first protection interval is zero; or, The first device supports the third capability, wherein the first protection interval is zero at a frequency different from or from the sensing signal.

11. The method of claim 8, wherein, The first device supports the first capability, and there is a signal sent by an interfering device that interferes with the first device; the first protection interval is a first duration. or, The capability of the first device is the second capability, and the first protection interval is the first duration; or, The capability of the first device is a third capability, and the first protection interval is a first duration at the same frequency as the sensing signal or the sensing signal.

12. The method as claimed in any one of claims 9 to 11, wherein, The first device and the second device are different base stations, and both the first time-domain unit and the second time-domain unit are DL time-domain units; or, The first device and the second device are different base stations, and the first time domain unit is a UL time domain unit, while the second time domain unit is a DL time domain unit; or, The first device is a terminal, the second device is a base station, and the first time domain unit is a DL time domain unit, and the second time domain unit is a UL time domain unit; or... The first device is a base station, the second device is a terminal, and the first time domain unit is a UL time domain unit, and the second time domain unit is a DL time domain unit; or... The first device and the second device are different terminals, and the first time domain unit is a UL time domain unit and the second time domain unit is a UL time domain unit.

13. The method according to any one of claims 7 to 12, wherein, The method further includes: Send capability information to the network device, the capability information being used to indicate the self-interference capability supported by the first device.

14. The method according to any one of claims 7 to 12, wherein, Multiple first devices with different self-interference capabilities have different first protection intervals.

15. The method as claimed in any one of claims 2 to 4, wherein, When the first device and the second device are not the same device, and there is a signal from an interfering device interfering with the first device, the first protection interval is a first duration.

16. The method of claim 15, wherein, The first device and the second device are different base stations, and the first time domain unit is a DL time domain unit, while the second time domain unit is a UL time domain unit; or, The first device and the second device are different base stations, and the first time domain unit is a UL time domain unit, and the second time domain unit is a UL time domain unit; or, The first device is a terminal, the second device is a base station, and the first time domain unit is a DL time domain unit, the second time domain unit is a DL time domain unit. The element is a DL time-domain element; or, The first device is a base station, the second device is a terminal, and the first time domain unit is a UL time domain unit, and the second time domain unit is a UL time domain unit; or... The first device and the second device are different terminals, and the first time domain unit is a UL time domain unit and the second time domain unit is a DL time domain unit.

17. The method as claimed in any one of claims 2 to 16, wherein, The first duration is greater than or equal to a first value; wherein the first value is determined based on the sensing and detection distance of the first device.

18. The method as claimed in any one of claims 2 to 16, wherein, When the first device and the second device are different terminals, the first duration is greater than or equal to the second value; wherein the second value is determined based on the time advance TA interval between the different terminals and the sensing and detection distance of the first device.

19. The method of claim 18, wherein, The interval of the TA is either the maximum allowed TA in the cell where the first device is located or zero.

20. The method according to any one of claims 1 to 19, wherein, Within the first protection interval, the first device does not expect any uplink communication signals to be transmitted; or, Within the first protection interval, the first device does not expect any downlink communication signals to be transmitted.

21. The method of claim 20, wherein, The uplink communication signal is at the same frequency as the sensing signal or the reflected sensing signal; or, the downlink communication signal is at the same frequency as the sensing signal or the reflected sensing signal.

22. The method as claimed in any one of claims 1 to 21, wherein, The method further includes: Send indication information to network devices in co-frequency neighboring cells. The indication information is used to instruct the network devices to suspend uplink scheduling for cell edge users within the first protection interval, or the indication information is used to instruct the network devices to suspend downlink scheduling within the first protection interval.

23. The method as claimed in any one of claims 1 to 22, wherein, The first protection interval satisfies at least one of the following: If the first protection interval is less than or equal to the second protection interval, the first protection interval is set within the second protection interval; The first protection interval is less than or equal to the sum of the second protection interval and the additionally configured protection interval; The first protection interval is the sum of the second protection interval and the protection interval used for sensing signals; The second protection interval is the protection interval between the UL time domain unit and the DL time domain unit.

24. A communication method performed by a second device, the method comprising: A sensing signal is sent to a first device in a first time domain unit; wherein a first guard interval is provided between the first time domain unit and the second time domain unit, and the second time domain unit is a time domain resource used for communication signals.

25. The method of claim 24, wherein The first protection interval is zero, or the first protection interval is a first duration, where the first duration is greater than zero.

26. The method of claim 24, wherein, The first protection interval has multiple candidate durations, wherein the multiple candidate durations include at least a first duration that is zero or greater than zero.

27. The method of claim 24, wherein, The duration of the first protection interval is defined by the protocol or configured by the network device.

28. The method according to any one of claims 25 to 27, wherein, If the first device and the second device are the same device, the first protection interval is zero when one of the following conditions is met: The first device and the second device are base stations, and both the first time domain unit and the second time domain unit are downlink DL time domain units; or, The first device and the second device are terminals, and the first time domain unit is a UL time domain unit and the second time domain unit is a UL time domain unit, wherein no terminal other than the first device sends UL communication signals.

29. The method according to any one of claims 25 to 27, wherein, If the first device and the second device are the same device, the first protection interval shall be the first duration if one of the following conditions is met: The first device and the second device are base stations, and the first time domain unit is a DL time domain unit, and the second time domain unit is an uplink UL time domain unit; or, The first device and the second device are terminals, and the first time domain unit is a UL time domain unit, and the second time domain unit is a DL time domain unit; or, The first device and the second device are terminals, and the first time domain unit is a UL time domain unit and the second time domain unit is a UL time domain unit.

30. The method according to any one of claims 25 to 27, wherein, The first device and the second device are not the same device, and the first protection interval is determined based on the self-interference capability of the first device.

31. The method of claim 30, wherein, The self-interference capability includes one of the following: The first capability to support simultaneous reception and transmission of signals at the same or different frequencies; It does not support the secondary capability of simultaneously receiving and transmitting signals at the same or different frequencies; It does not support simultaneous reception and transmission of signals on the same frequency, but supports a third capability: simultaneous reception and transmission of signals on different frequencies.

32. The method of claim 31, wherein, The first device supports the first capability, the second capability, or the third capability, and the first protection interval is a first duration.

33. The method of claim 31, wherein, The first device supports the first capability, and the first protection interval is zero; or, The first device supports the third capability, wherein the first protection interval is zero at a frequency different from or from the sensing signal.

34. The method of claim 31, wherein, The first device supports the first capability, and there is a signal sent by an interfering device that interferes with the first device; the first protection interval is a first duration. or, The capability of the first device is the second capability, and the first protection interval is the first duration; or, The capability of the first device is a third capability, and the first protection interval is a first duration at the same frequency as the sensing signal or the sensing signal.

35. The method according to any one of claims 32 to 34, wherein, The first device and the second device are different base stations, and both the first time-domain unit and the second time-domain unit are DL time-domain units; or, The first device and the second device are different base stations, and the first time domain unit is a UL time domain unit, while the second time domain unit is a DL time domain unit; or, The first device is a terminal, the second device is a base station, and the first time domain unit is a DL time domain unit, and the second time domain unit is a UL time domain unit; or... The first device is a base station, the second device is a terminal, and the first time domain unit is a UL time domain unit, and the second time domain unit is a DL time domain unit; or... The first device and the second device are different terminals, and the first time domain unit is a UL time domain unit and the second time domain unit is a UL time domain unit.

36. The method according to any one of claims 30 to 35, wherein, Multiple first devices with different self-interference capabilities have different first protection intervals.

37. The method of any one of claims 25 to 27, wherein, When the first device and the second device are not the same device, and there is a signal from an interfering device interfering with the first device, the first protection interval is a first duration.

38. The method of claim 37, wherein, The first device and the second device are different base stations, and the first time domain unit is a DL time domain unit, while the second time domain unit is a UL time domain unit; or, The first device and the second device are different base stations, and the first time domain unit is a UL time domain unit, and the second time domain unit is a UL time domain unit; or, The first device is a terminal, the second device is a base station, and the first time domain unit is a DL time domain unit, and the second time domain unit is a DL time domain unit; or... The first device is a base station, the second device is a terminal, and the first time domain unit is a UL time domain unit, and the second time domain unit is a UL time domain unit; or... The first device and the second device are different terminals, and the first time domain unit is a UL time domain unit and the second time domain unit is a DL time domain unit.

39. The method according to any one of claims 25 to 38, wherein, The first duration is greater than or equal to a first value; wherein the first value is determined based on the sensing and detection distance of the first device.

40. The method of any one of claims 25 to 38, wherein, When the first device and the second device are different terminals, the first duration is greater than or equal to the second value; wherein the second value is determined based on the time advance TA interval between the different terminals and the sensing and detection distance of the first device.

41. The method of claim 40, wherein, The interval of the TA is either the maximum allowed TA in the cell where the first device is located or zero.

42. The method according to any one of claims 24 to 41, wherein, The first protection interval satisfies at least one of the following: If the first protection interval is less than or equal to the second protection interval, the first protection interval is set within the second protection interval; The first protection interval is less than or equal to the sum of the second protection interval and the additionally configured protection interval; The first protection interval is the sum of the second protection interval and the protection interval used for sensing signals; The second protection interval is the protection interval between the UL time domain unit and the DL time domain unit.

43. A communication system, comprising a first device and a second device, wherein, The first device is configured to implement the method as described in any one of claims 1 to 23; The second device is configured to implement the method as described in any one of claims 24 to 42.

44. A system frame, comprising: First time-domain unit, second time-domain unit, and first protection interval; The first protection interval is located between the first time domain unit and the second time domain unit. The first time domain unit is a time domain resource for sensing signals or reflecting sensing signals, and the second time domain unit is a time domain resource for communication signals.

45. The system frame as claimed in claim 44, wherein, The first protection interval configuration or definition has multiple candidate durations.

46. ​​A first device, comprising: The transceiver module is used to receive sensing signals sent by the second device in the first time domain unit; wherein, a first guard interval is provided between the first time domain unit and the second time domain unit, and the second time domain unit is a time domain resource for communication signals.

47. A second device, comprising: A transceiver module is used to send a sensing signal to a first device in a first time domain unit; wherein a first guard interval is provided between the first time domain unit and the second time domain unit, and the second time domain unit is a time domain resource for communication signals.

48. A communication device, comprising: One or more processors; The communication device is configured to implement the method according to any one of claims 1 to 23 or claims 24 to 42.

49. A storage medium storing instructions, wherein, When the instructions are executed on the communication device, the communication device performs the method as described in any one of claims 1 to 23 or any one of claims 24 to 42.

50. A program product, wherein, When the program product is executed by a communication device, the communication device performs the method as described in any one of claims 1 to 23, or any one of claims 24 to 42.

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