Communication method and communication apparatus

Abstract

The present application relates to the field of communications, and specifically to a communication method and a communication apparatus. The method comprises: sending first information, the first information being used to indicate phase capability of a terminal device; and sending a first signal on a first resource, the first resource being determined on the basis of the phase capability. The described method and apparatus can cause a signal sent by a terminal device to meet a sensing function requirement.

Description

Communication method and communication device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on September 28, 2023, with application number 202311288762.1 and application name “Communication Method and Communication Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communications, and in particular to a communication method and a communication device. Background Art

[0003] The communication system has been upgraded from the fifth generation mobile communication technology (5 th generation mobile communication technology, 5G) towards the sixth generation mobile communication technology (6 th The advent of 6G (6th generation mobile communication technology) has given rise to network visions encompassing global coverage, green intelligence, and sensory connectivity. The realization of this 6G vision requires closed-loop information flow processing, encompassing the acquisition of environmental perception information, information interaction and sharing, intelligent information processing, and layer-by-layer distribution of control information. Existing wireless network technologies are struggling to meet the evolving application demands of the post-5G and 6G eras. There is an urgent need to develop new network architectures that enable efficient resource utilization, differentiated applications, and intelligent adaptation, integrating communication and perception—that is, achieving harmonized communication and sensing (HCS).

[0004] HCS is an information processing technology that enables collaborative perception and communication functions based on shared software and hardware resources or information. HCS can significantly reuse communication and perception resources, enabling unified design of communication and perception functions. However, communication and perception have different signal requirements. Existing terminal devices are typically designed for communication functions without considering perception requirements, making them unsuitable for perception scenarios.

[0005] Summary of the Invention

[0006] The embodiments of the present application provide a communication method, a communication device, a communication system, a computer-readable storage medium, and a computer program product, which can enable the signal sent by the terminal device to meet the requirements of the perception function.

[0007] In a first aspect, embodiments of the present application provide a communication method. The method may be performed by a terminal device or a chip implemented in the terminal device. The following description uses the terminal device as an example. The method includes: transmitting first information indicating the phase capability of the terminal device; and transmitting a first signal on a first resource, where the first resource is determined based on the phase capability.

[0008] The perception function requires that the transmitted signal have a stable phase value over a period of time in order to realize perception functions such as speed measurement. However, the communication function usually has no requirements for the phase value of the signal, and the communication method needs to be improved for the perception function. Different terminal devices have different phase capabilities. If the resource for transmitting the signal does not take into account the phase capability of the terminal device, the signal transmitted by the terminal device may not maintain a stable phase value. The terminal device informs the network device of its own phase capability, and the network device can determine and indicate the first resource based on the phase capability of the terminal device. In this way, the first resource matches the phase capability of the terminal device, and the first signal sent by the terminal device on the first resource can meet the requirements of the perception function. In addition, the matching of the first resource with the phase capability of the terminal device can also avoid resource waste.

[0009] Optionally, the above-mentioned phase capability includes: the ability to maintain phase continuity; or the ability to keep the phase value of the radio frequency link unchanged; or the ability that the absolute value of the difference between the phase value of the signal sent in the first time unit and the phase value of the signal sent in the second time unit is less than or equal to the first value, and the first time unit and the second time unit belong to the first time period.

[0010] In this embodiment, "unchanged phase value" can be considered to mean that the absolute value of the difference between the phase values ​​of any two sensing signals sent by the radio frequency link during the first time period is within an error range. The terminal device can indicate its phase capability in various ways, so that the network device can indicate the first resource based on the phase capability of the terminal device.

[0011] Optionally, the above-mentioned phase capability includes: maintaining the duration of phase continuity.

[0012] The ability to maintain phase continuity can be characterized by the duration of maintaining phase continuity. The terminal device informs the network device of the duration of maintaining phase continuity. The network device can configure the first resource for the terminal device based on the duration, so that the multiple signals sent by the terminal device on the first resource can maintain phase continuity.

[0013] Optionally, the duration of the first resource is less than or equal to the duration.

[0014] The duration of the first resource refers to the length of time between the start time and the end time of the first resource. If the duration of the first resource exceeds the duration time, the signal sent by the terminal device in the period outside the duration time cannot maintain phase continuity, resulting in the sent signal failing to meet the requirements of the perception function. Therefore, the duration of the first resource is less than or equal to the duration time, which can avoid resource waste.

[0015] Optionally, the first information includes a first field, and the first field is used to indicate the number of at least one time unit included in the duration.

[0016] By indicating the number of at least one time unit in the first field, the terminal device can flexibly indicate the duration for maintaining phase continuity.

[0017] Optionally, the above-mentioned phase capability includes: being able to maintain phase continuity after the transmission power changes or the transmission power level changes, and / or maintaining a transmission power range for phase continuity.

[0018] In various embodiments of the present application, “being able to maintain phase continuity after the transmission power changes or the transmission power level changes” may be replaced by the following expression:

[0019] During the first time period, when the transmission power or the transmission power level of the terminal device changes, the phase values ​​of the multiple perception signals sent are the same (or the absolute value of the difference between the phase values ​​of any two perception signals among the multiple perception signals sent is less than or equal to the first value, or the multiple perception signals sent can maintain phase continuity).

[0020] Changes in transmit power or transmit power levels may affect phase continuity. If the terminal device can maintain phase continuity after a change in transmit power or a change in transmit power level, or if the terminal device can maintain phase continuity within certain transmit power intervals, the terminal device can inform the network device of its own capability. The network device can configure or schedule a matching first resource for the terminal device based on the capability of the terminal device, and then indicate the first resource to the terminal device. The terminal device can adjust the transmit power or transmit power level within the time period between the start and end times of the first resource, wherein the transmit power before and after the adjustment is within the transmit power interval for maintaining phase continuity. In this way, the multiple signals sent by the terminal device on the first resource can maintain phase continuity and can also flexibly adapt to different communication scenarios.

[0021] Optionally, the above-mentioned phase capability includes: the phase continuity cannot be maintained after the transmission power changes or the transmission power level changes; the transmission power or transmission power level of the terminal device remains unchanged during the period between the start time and the end time of the first resource.

[0022] In various embodiments of the present application, “failure to maintain phase continuity after the transmission power changes or the transmission power level changes” may be replaced by the following expression:

[0023] During the first time period, when the transmission power or the transmission power level of the terminal device changes, the phase values ​​of the multiple perception signals sent are different (or, the absolute value of the difference between the phase values ​​of two perception signals among the multiple perception signals sent is greater than the first value, or, the multiple perception signals sent cannot maintain phase continuity).

[0024] Changes in transmit power or transmit power level may affect phase continuity. If a terminal device cannot maintain phase continuity after a change in transmit power or transmit power level, the terminal device may inform the network device of this capability. The network device may then configure or schedule a matching first resource for the terminal device based on this capability, and then indicate the first resource to the terminal device. The terminal device may maintain the transmit power or transmit power level unchanged during the period between the start and end times of the first resource, so that multiple signals transmitted by the terminal device on the first resource can maintain phase continuity.

[0025] Optionally, the above-mentioned phase capability includes: being able to maintain phase continuity after receiving the signal.

[0026] In various embodiments of the present application, “being able to maintain phase continuity after receiving a signal” may be replaced by the following expression:

[0027] During the first time period, when the terminal device receives a signal between sending multiple perception signals, the phase values ​​of the multiple perception signals sent are the same (or, the absolute value of the difference between the phase values ​​of any two perception signals in the multiple perception signals sent is less than or equal to the first value, or, the multiple perception signals sent can maintain phase continuity).

[0028] The received signal may affect the phase continuity of the transmitted signal. If the terminal device can maintain phase continuity after receiving the signal, the terminal device can inform the network device of its own capability. The network device can indicate a matching first resource to the terminal device based on the capability of the terminal device. The terminal device can receive the signal during the period between the start time and the end time of the first resource. In this way, the multiple signals sent by the terminal device on the first resource can maintain phase continuity and can also flexibly adapt to different communication scenarios.

[0029] Optionally, the above-mentioned phase capability includes: being unable to maintain phase continuity after receiving a signal; and the terminal device can only send signals during the period between the start time and the end time of the first resource.

[0030] In various embodiments of the present application, “failure to maintain phase continuity after receiving a signal” may be replaced by the following expression:

[0031] During the first time period, when the terminal device receives a signal between sending multiple perception signals, the phase values ​​of the multiple perception signals sent are different (or, the absolute value of the difference between the phase values ​​of two perception signals among the multiple perception signals sent is greater than the first value, or, the multiple perception signals sent cannot maintain phase continuity).

[0032] The received signal may affect the phase continuity of the transmitted signal. If the terminal device cannot maintain phase continuity after receiving the signal, the terminal device can inform the network device of its own capability. The network device can indicate a matching first resource to the terminal device based on the capability of the terminal device. The terminal device can only send signals during the period between the start time and the end time of the first resource. In this way, the multiple signals sent by the terminal device on the first resource can maintain phase continuity.

[0033] Optionally, before sending the first signal on the first resource, the method further includes: receiving second information, where the second information is used to indicate the first resource.

[0034] Optionally, the first signal is used for sensing.

[0035] In addition to being used for perception, the first signal can also be used for communication. The embodiment of the present application does not limit the function of the first signal other than perception.

[0036] In a second aspect, embodiments of the present application provide a communication method. The method may be performed by a network device or a chip implemented in the network device. The following description uses the network device as an example. The method includes: receiving first information indicating the phase capability of a terminal device; determining a first resource based on the phase capability; and receiving a first signal on the first resource.

[0037] The perception function requires that the transmitted signal have a stable phase value over a period of time in order to realize perception functions such as speed measurement. However, the communication function usually has no requirements for the phase value of the signal, and the communication method needs to be improved for the perception function. Different terminal devices have different phase capabilities. If the resource for transmitting the signal does not take into account the phase capability of the terminal device, the signal transmitted by the terminal device may not maintain a stable phase value. The terminal device informs the network device of its own phase capability, and the network device can determine and indicate the first resource based on the phase capability of the terminal device. In this way, the first resource matches the phase capability of the terminal device, and the first signal sent by the terminal device on the first resource can meet the requirements of the perception function. In addition, the matching of the first resource with the phase capability of the terminal device can also avoid resource waste.

[0038] Optionally, the above-mentioned phase capability includes: the ability to maintain phase continuity; or, the ability to keep the phase value of the radio frequency link unchanged; or, the ability to keep the absolute value of the difference between the phase value of the signal sent in the first time unit and the phase value of the signal sent in the second time unit less than or equal to the first value, and the first time unit and the second time unit belong to the first time period.

[0039] In this embodiment, "unchanged phase value" can be considered to mean that the absolute value of the difference between the phase values ​​of any two sensing signals sent by the radio frequency link during the first time period is within an error range. The terminal device can indicate its phase capability in various ways, and the network device can indicate the first resource based on the phase capability of the terminal device.

[0040] Optionally, the above-mentioned phase capability includes: maintaining the duration of phase continuity.

[0041] The ability to maintain phase continuity can be characterized by the duration of maintaining phase continuity. The terminal device informs the network device of the duration of maintaining phase continuity. The network device can indicate the first resource to the terminal device based on the duration, so that the multiple signals sent by the terminal device on the first resource can maintain phase continuity.

[0042] Optionally, the duration of the first resource is less than or equal to the duration.

[0043] The duration of the first resource refers to the length of time between the start time and the end time of the first resource. If the duration of the first resource exceeds the duration time, the signal sent by the terminal device in the period outside the duration time cannot maintain phase continuity, resulting in the sent signal failing to meet the requirements of the perception function. Therefore, the duration of the first resource is less than or equal to the duration time, which can avoid resource waste.

[0044] Optionally, the first information includes a first field, and the first field is used to indicate the number of at least one time unit included in the duration.

[0045] By indicating the number of at least one time unit in the first field, the terminal device can flexibly indicate the duration for maintaining phase continuity.

[0046] Optionally, the above-mentioned phase capability includes: being able to maintain phase continuity after the transmission power changes or the transmission power level changes, and / or maintaining a transmission power range for phase continuity.

[0047] Changes in transmit power or transmit power levels may affect phase continuity. If the terminal device can maintain phase continuity after a change in transmit power or a change in transmit power level, or if the terminal device can maintain phase continuity within certain transmit power intervals, the terminal device can inform the network device of its own capability. The network device can configure or schedule a matching first resource for the terminal device based on the capability of the terminal device, and then indicate the first resource to the terminal device. The terminal device can adjust the transmit power or transmit power level within the time period between the start and end times of the first resource, wherein the transmit power before and after the adjustment is within the transmit power interval for maintaining phase continuity. In this way, the multiple signals sent by the terminal device on the first resource can maintain phase continuity and can also flexibly adapt to different communication scenarios.

[0048] Optionally, the above-mentioned phase capability includes: the phase continuity cannot be maintained after the transmission power changes or the transmission power level changes; the transmission power or transmission power level of the terminal device remains unchanged during the period between the start time and the end time of the first resource.

[0049] Changes in transmit power or transmit power level may affect phase continuity. If a terminal device cannot maintain phase continuity after a change in transmit power or transmit power level, the terminal device may inform the network device of this capability. The network device may then configure or schedule a matching first resource for the terminal device based on this capability, and then indicate the first resource to the terminal device. The terminal device may maintain the transmit power or transmit power level unchanged during the period between the start and end times of the first resource, so that multiple signals transmitted by the terminal device on the first resource can maintain phase continuity.

[0050] Optionally, the above-mentioned phase capability includes: being able to maintain phase continuity after receiving the signal.

[0051] The received signal may affect the phase continuity of the transmitted signal. If the terminal device can maintain phase continuity after receiving the signal, the terminal device can inform the network device of its own capability. The network device can indicate a matching first resource to the terminal device based on the capability of the terminal device. The terminal device can receive the signal during the period between the start time and the end time of the first resource. In this way, the multiple signals sent by the terminal device on the first resource can maintain phase continuity and can also flexibly adapt to different communication scenarios.

[0052] Optionally, the above-mentioned phase capability includes: being unable to maintain phase continuity after receiving a signal; and the terminal device can only send signals during the period between the start time and the end time of the first resource.

[0053] The received signal may affect the phase continuity of the transmitted signal. If the terminal device cannot maintain phase continuity after receiving the signal, the terminal device can inform the network device of its own capability. The network device can indicate a matching first resource to the terminal device based on the capability of the terminal device. The terminal device can only send signals during the period between the start time and the end time of the first resource. In this way, the multiple signals sent by the terminal device on the first resource can maintain phase continuity.

[0054] Optionally, before receiving the first signal on the first resource, the method further includes: sending second information, where the second information is used to indicate the first resource.

[0055] Optionally, the first signal is used for sensing.

[0056] In addition to being used for perception, the first signal can also be used for communication. The embodiment of the present application does not limit the function of the first signal other than perception.

[0057] In a third aspect, embodiments of the present application provide a communication method, which may be performed by a terminal device or a chip implemented in a terminal device. The method is described below using the terminal device as an example. The method includes: transmitting first information indicating a phase continuity capability of the terminal device; and transmitting a first signal on a first resource, where the first resource is determined based on the phase continuity capability.

[0058] Optionally, the capability of maintaining phase continuity includes: a duration of maintaining phase continuity.

[0059] Optionally, the duration of the first resource is less than or equal to the duration.

[0060] Optionally, the first information includes a first field, and the first field is used to indicate the number of at least one time unit included in the duration.

[0061] Optionally, the capability of maintaining phase continuity includes: being able to maintain phase continuity after a change in transmit power or a change in transmit power level, and / or a transmit power interval within which phase continuity is maintained.

[0062] Optionally, the above-mentioned ability to maintain phase continuity includes: the inability to maintain phase continuity after the transmission power changes or the transmission power level changes; the transmission power or transmission power level of the terminal device remains unchanged during the period between the start time and the end time of the first resource.

[0063] Optionally, the capability of maintaining phase continuity includes: being able to maintain phase continuity after receiving a signal.

[0064] Optionally, the above-mentioned ability to maintain phase continuity includes: being unable to maintain phase continuity after receiving a signal; and the terminal device can only send signals during the period between the start time and the end time of the first resource.

[0065] Optionally, before sending the first signal on the first resource, the method further includes: receiving second information, where the second information is used to indicate the first resource.

[0066] Optionally, the first signal is used for sensing.

[0067] The beneficial effects of each embodiment of the third aspect can refer to the beneficial effects of similar solutions in the first aspect, and will not be repeated here.

[0068] Fourthly, embodiments of the present application provide a communication method. The method may be performed by a network device or a chip implemented in a network device. The following description uses the network device as an example. The method includes: receiving first information indicating a terminal device's ability to maintain phase continuity; determining a first resource based on the phase continuity capability; and receiving a first signal on the first resource.

[0069] Optionally, the capability of maintaining phase continuity includes: a duration of maintaining phase continuity.

[0070] Optionally, the duration of the first resource is less than or equal to the duration.

[0071] Optionally, the first information includes a first field, and the first field is used to indicate the number of at least one time unit included in the duration.

[0072] Optionally, the capability of maintaining phase continuity includes: being able to maintain phase continuity after a change in transmit power or a change in transmit power level, and / or a transmit power interval within which phase continuity is maintained.

[0073] Optionally, the above-mentioned ability to maintain phase continuity includes: the inability to maintain phase continuity after the transmission power changes or the transmission power level changes; the transmission power or transmission power level of the terminal device remains unchanged during the period between the start time and the end time of the first resource.

[0074] Optionally, the capability of maintaining phase continuity includes: being able to maintain phase continuity after receiving a signal.

[0075] Optionally, the above-mentioned ability to maintain phase continuity includes: being unable to maintain phase continuity after receiving a signal; and the terminal device can only send signals during the period between the start time and the end time of the first resource.

[0076] Optionally, before receiving the first signal on the first resource, the method further includes: sending second information, where the second information is used to indicate the first resource.

[0077] Optionally, the first signal is used for sensing.

[0078] The beneficial effects of each embodiment of the fourth aspect can refer to the beneficial effects of similar schemes in the second aspect and will not be repeated here.

[0079] In a fifth aspect, embodiments of the present application provide a communication device. The communication device may include a processing unit and a transceiver unit, configured to perform: any of the methods in the first aspect and its optional embodiments described above, or any of the methods in the third aspect and its optional embodiments described above. The transceiver unit is a sending unit when performing the sending step, and is a receiving unit when performing the receiving step.

[0080] In a sixth aspect, embodiments of the present application provide a communication device, which may be a terminal device or a chip applied to a terminal device. The communication device may include a processor configured to execute: any method described in the first aspect and its optional embodiments, or any method described in the third aspect and its optional embodiments.

[0081] Optionally, the communication device may further include a transceiver. When the communication device is a terminal device, the transceiver may be a transceiver circuit, an antenna, etc.; when the communication device is a chip used in a terminal device, the transceiver may be an input / output interface, a pin, a circuit, etc.

[0082] Optionally, the communication device may further include a memory for storing instructions, and the processor executes the instructions stored in the memory to cause the communication device to perform: any one of the methods in the first aspect and its optional embodiments described above, or any one of the methods in the third aspect and its optional embodiments described above. When the communication device is a terminal device, the memory may be a read-only memory, a random access memory, or the like; when the communication device is a chip applied to a terminal device, the memory may be a register, a cache, or the like.

[0083] In a seventh aspect, embodiments of the present application provide a communication device. The communication device may include a processing unit and a transceiver unit, configured to perform: any of the methods in the second aspect and its optional embodiments described above, or any of the methods in the fourth aspect and its optional embodiments described above. The transceiver unit is a sending unit when performing the sending step, and is a receiving unit when performing the receiving step.

[0084] In an eighth aspect, an embodiment of the present application provides a communication device, which may be a network device or a chip used in a network device. The communication device may include a processor configured to execute: any method in the second aspect and its optional embodiments, or any method in the fourth aspect and its optional embodiments.

[0085] Optionally, the communication device may further include a transceiver. When the communication device is a network device, the transceiver may be a transceiver circuit, an antenna, etc.; when the communication device is a chip used in a network device, the transceiver may be an input / output interface, a pin, a circuit, etc.

[0086] Optionally, the communication device may further include a memory for storing instructions, and the processor executes the instructions stored in the memory to cause the communication device to perform: any of the methods in the second aspect and its optional embodiments described above, or any of the methods in the fourth aspect and its optional embodiments described above. When the communication device is a network device, the memory may be a read-only memory, a random access memory, or the like; when the communication device is a chip used in a network device, the memory may be a register, a cache, or the like.

[0087] In the ninth aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program. When the computer program is executed on a computer, the computer executes: any one of the methods in the first aspect and its optional embodiments, or any one of the methods in the third aspect and its optional embodiments.

[0088] In the tenth aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program. When the computer program is executed on a computer, it enables the computer to execute: any method in the second aspect and its optional embodiments, or any method in the fourth aspect and its optional embodiments.

[0089] In the eleventh aspect, an embodiment of the present application provides a computer program product, which includes: computer program code or computer program instructions, which, when the computer program code or computer program instructions are executed by a communication device, enable the communication device to execute: any one of the methods in the first aspect and its optional embodiments, or any one of the methods in the third aspect and its optional embodiments.

[0090] In the twelfth aspect, an embodiment of the present application provides a computer program product, which includes: computer program code or computer program instructions, which, when the computer program code or computer program instructions are executed by a communication device, enable the communication device to execute: any one of the methods in the second aspect and its optional embodiments, or any one of the methods in the fourth aspect and its optional embodiments.

[0091] In the thirteenth aspect, an embodiment of the present application provides a communication system, which includes: the communication device described in the fifth aspect and the communication device described in the seventh aspect, or the communication device described in the sixth aspect and the communication device described in the eighth aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0092] FIG1 is a schematic diagram of a communication system applicable to the present application;

[0093] FIG2 is a schematic diagram of a protocol stack applicable to the present application;

[0094] FIG3 is a schematic diagram of a single-base system provided in an embodiment of the present application;

[0095] FIG4 is a schematic diagram of another single-base system provided in an embodiment of the present application;

[0096] FIG5 is a schematic diagram of a dual-base system provided in an embodiment of the present application;

[0097] FIG6 is a schematic diagram of another dual-base system provided in an embodiment of the present application;

[0098] FIG7 is a schematic diagram of another dual-base system provided in an embodiment of the present application;

[0099] FIG8 is a schematic diagram of a time domain resource for sending a perception signal provided in an embodiment of the present application;

[0100] FIG9 is a schematic diagram of a communication method provided in an embodiment of the present application;

[0101] FIG10 is a schematic diagram of a duration for maintaining phase continuity provided by an embodiment of the present application;

[0102] FIG11 is a schematic diagram of a corresponding relationship between transmit power and a power amplifier provided in an embodiment of the present application;

[0103] FIG12 is a schematic diagram of a sensing resource provided in an embodiment of the present application;

[0104] FIG13 is a schematic diagram of another sensing resource provided in an embodiment of the present application;

[0105] FIG14 is a schematic diagram of another sensing resource provided in an embodiment of the present application;

[0106] FIG15 is a schematic diagram of another sensing resource provided in an embodiment of the present application;

[0107] FIG16 is a schematic diagram of a communication device provided in an embodiment of the present application;

[0108] FIG17 is a schematic diagram of another communication device provided in an embodiment of the present application;

[0109] FIG18 is a schematic diagram of a terminal device provided in an embodiment of the present application;

[0110] Figure 19 is a schematic diagram of a network device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0111] The technical solution in this application will be described below with reference to the accompanying drawings.

[0112] Figure 1 is a schematic diagram of a communication system applicable to the present application. The communication system includes a terminal device 110 and a network device 120. The following describes each part of the communication system.

[0113] 1. Terminal device 110.

[0114] In the embodiment of the present application, the terminal device 110 may be a device that provides voice and / or data to a user, such as a handheld device or vehicle-mounted device with a wireless connection function. The terminal device 110 may also be referred to as user equipment (UE), terminal, access station, UE station, remote station, wireless communication device, or user device.

[0115] For example, the terminal device 110 can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a whole vehicle, a wireless communication module in the whole vehicle, a telematics box (T-box), a roadside unit (RSU), a wireless terminal in unmanned driving, a smart speaker in the Internet of Things (IoT), a wireless terminal device in remote medical, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home. The embodiments of the present application are not limited to this.

[0116] As an example and not a limitation, in the embodiment of the present application, the terminal device 110 may also be a wearable device. Wearable devices may also be referred to as wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include electronic devices that are fully functional, large in size, and can achieve full or partial functions without relying on smartphones, such as smart watches or smart glasses, or electronic devices that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets and smart jewelry for measuring vital signs.

[0117] The terminal device 110 may also be a vehicle-to-everything (V2X) device, such as a smart car (or intelligent car), a digital car, an unmanned car (or driverless car, or pilotless car, or automobile), a self-driving car (or autonomous car), a pure electric vehicle (or battery EV), a hybrid electric vehicle (or HEV), a range-extended EV (or REEV), a plug-in hybrid electric vehicle (or PHEV), or a new energy vehicle. The various terminal devices described above, if located on a vehicle (e.g., placed inside or installed inside a vehicle), may be considered as on-board terminal devices, which are also referred to as on-board units (OBUs).

[0118] The terminal device 110 of the present application can also be a vehicle-mounted module, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip or vehicle-mounted unit built into the vehicle as one or more components or units. The vehicle can implement the method of the present application through the built-in vehicle-mounted module, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip or vehicle-mounted unit.

[0119] In addition, in the embodiment of the present application, the terminal device 110 may also be a device in a future-evolved public land mobile communication network (PLMN), for example, the terminal device 110 may be a sixth-generation mobile communication (6G th The embodiment of the present application does not limit the specific type of the terminal device 110.

[0120] 2. Network device 120.

[0121] The network device 120 is a device that provides wireless communication functions for terminal devices and is responsible for functions related to the air interface (abbreviated as "air interface"). The network device can also be called a network device or a radio access network (RAN) device, and the network device includes but is not limited to: a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation base station (gNB) in the fifth-generation (5G) mobile communication system, a next-generation base station in the sixth-generation (6G) mobile communication system, a base station in a future mobile communication system, a wireless fidelity (WiFi) system, a long-range radio (LoRa) system, or an access node in a vehicle network system. The RAN device can also be a module or unit that performs some of the functions of a base station, for example, a centralized unit (CU), a distributed unit (DU), or a radio unit (RU). The CU here implements the functions of the radio resource control protocol and packet data convergence protocol (PDCP) of the base station, and can also implement the functions of the service data adaptation protocol (SDAP); the DU implements the functions of the radio link control layer and medium access control (MAC) layer of the base station, and can also implement some or all of the physical layer functions. For detailed descriptions of the above-mentioned protocol layers, please refer to the relevant technical specifications of the 3rd Generation Partnership Project (3GPP). The CU and DU can be set separately, or they can be included in the same network element, such as the baseband unit (BBU). The RU can be included in a radio frequency device or radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH). In different systems, CU, DU, or RU may have different names, but those skilled in the art will understand their meanings.For example, in an open radio access network (ORAN) system, CU may also be referred to as O-CU (open CU), DU may also be referred to as O-DU (open DU), and RU may also be referred to as O-RU (open RU). Any unit of CU (or CU-CP, CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module. The wireless access network device may be a macro base station, a micro base station or an indoor station, a relay node or a donor node, etc. The network device 120 in the embodiment of the present application may be any of the above-mentioned devices or devices in the device, and the embodiment of the present application does not limit the specific technology and specific device form adopted by the network device 120. For the sake of ease of description, the network device 120 is used as an abbreviation for the wireless access network device, and the base station is used as an example of a wireless access network device.

[0122] The multiple network devices in the communication system can be base stations of the same type or different types. The base station can communicate with the terminal device 110, or it can communicate with the terminal device 110 through a relay station. The network device 120 in the present application can also be a device with a sensing function, which can transmit a sensing signal, receive and process reflected signals from targets in the environment. In the embodiments of the present application, the communication device for implementing the functions of the network device 120 can be a network device, or a network device with some of the functions of a base station, or a device that can support the network device to implement the function, such as a chip system, which can be installed in the network device.

[0123] The network device 120 may also be a base station corresponding to a small cell. The small cell here may include: a metro cell, a micro cell, a pico cell, or a femto cell. The embodiment of the present application does not limit the specific type of the network device.

[0124] In various embodiments of the present application, the network device 120 may also be referred to as a cell, and the two may be interchangeable. For the sake of brevity, they will not be described in detail later.

[0125] The following describes the protocol stack applicable to this application.

[0126] The protocol stack of the terminal device 110 and the network device 120 is shown in Figure 2. This protocol stack is mainly the protocol stack of the access layer, where the access layer can be divided into the radio resource control (RRC) layer, the packet data convergence protocol (PDCP) layer, the radio link control (RLC) layer, the medium access control (MAC) layer, and the physical (PHY) layer.

[0127] The following describes the workflow of the protocol stack using uplink transmission as an example.

[0128] (1) The main functions of the RRC layer include system messages, admission control, security management, measurement and reporting, as well as handover and mobility. The control plane data related to these functions is generated in the non-access stratum (NAS). The RRC layer is also responsible for radio resource management for the transmission of NAS protocol data units (PDUs). After the NAS PDU reaches the RRC layer, it is processed as an RRC service data unit (SDU) to generate an RRC PDU. Control plane data generated by the RRC layer (such as RRC reconfiguration messages) is also packaged into RRC PDUs.

[0129] (2) The main functions of the PDCP layer include transmitting user plane and control plane data, maintaining PDCP sequence numbers, routing and repetition, encryption / decryption and integrity protection, reordering, supporting out-of-order delivery, and duplicate discard. After the RRC PDU reaches the PDCP layer, it is processed as a PDCP SDU to generate a PDCP PDU.

[0130] (3) The main functions of the RLC layer include error detection and correction, segmentation and reassembly, resegmentation, and duplicate packet detection. After the PDCP PDU reaches the RLC layer, it is processed as an RLC SDU and generates an RLC PDU.

[0131] (4) The main functions of the MAC layer include mapping between logical channels and transport channels, multiplexing / demultiplexing, scheduling, hybrid automatic repeat request (HARQ), and logical channel priority setting. After the RLC PDU reaches the MAC layer, it is processed as a MAC SDU to generate a MAC sub-PDU. Multiple MAC sub-PDUs are concatenated to form a MAC PDU.

[0132] (5) The main functions of the PHY layer include coding, modulation, and multiple-input multiple-output (MIMO). After the MAC PDU reaches the PHY layer, it is sent out on the corresponding time-frequency resources.

[0133] As can be seen above, data transferred between the same protocol layers can be called SDUs, and data transferred between adjacent protocol layers can be called PDUs. For a protocol layer, the data it processes can be called SDUs, and the data it outputs can be called PDUs.

[0134] For example, the data processed by the RRC layer of terminal device 110 is an RRC SDU. The RRC layer adds protocol control information (PCI) to the RRC SDU and encapsulates it into an RRC PDU. The RRC PDU is processed by the PDCP layer, RLC layer, MAC layer, and PHY layer, and then transmitted to network device 120 via a wireless signal. The information carried by the wireless signal reaching network device 120 is processed by the PHY layer, MAC layer, RLC layer, and PDCP layer in sequence, and reaches the RRC layer in the form of an RRC PDU. The RRC layer decapsulates the RRC PDU, removes the PCI, and restores the RRC SDU.

[0135] If the data volume of an SDU is large, the terminal device 110 can divide the SDU into multiple segments, encapsulate them into multiple PDUs, and send them out. The network device 120 then decapsulates the multiple PDUs and reassembles them into an SDU. If the data volume of multiple SDUs is small, the terminal device 110 can concatenate the multiple SDUs, encapsulate them into a single PDU, and send them out. The network device 120 then decapsulates the PDU and separates the multiple SDUs.

[0136] To facilitate understanding of the technical solution of this application, we first briefly introduce the concepts involved in this application.

[0137] (1) Synaesthesia fusion.

[0138] The term "sensing" refers to the process of transmitting electromagnetic waves into space and, by receiving electromagnetic waves reflected from objects within that space, calculating information about the object, such as its position, direction, altitude, speed, size, trajectory, and / or detecting the object's internal and external shape and structure. It explores the transmission, echoes, reflections, and scattering of electromagnetic waves to perceive and better understand the physical world. Perception can also be referred to as detection.

[0139] Table 1 is an example of some perception application scenarios provided by the embodiments of this application.

[0140] Table 1

[0141] As shown in Table 1, perception technology has three typical application scenarios: infrastructure, autonomous driving, and portable devices. Different application scenarios have different perception service types, and different perception service types correspond to different business needs.

[0142] For infrastructure scenarios, perception capabilities can be used to perform tasks such as security checks and track management at airports, personnel counting and positioning in factories, and imaging and environmental reconstruction in buildings.

[0143] For autonomous driving scenarios, autonomous driving equipment with perception capabilities can be used to perform tasks such as posture recognition, in-vehicle behavior perception, collision avoidance sensing, traffic management, and pedestrian detection.

[0144] For portable device scenarios, electronic devices with perception functions can be used for health detection, cycling helmets with perception functions can be used for safety prediction, and detectors with perception functions can be used for life detection and other tasks.

[0145] The broad definition of perception mentioned above is the use of electromagnetic waves to understand and detect objects and signals in space, etc., which can include positioning, radar, imaging, motion recognition, object recognition and environment reconstruction.

[0146] The integration of electromagnetic signals used for communication and perception creates an integrated communication and perception system. In this system, communication nodes and perception nodes may be integrated (hereinafter referred to as HCS nodes), and there are various types of integrated HCS nodes. These HCS nodes are a fusion of communication and perception nodes. By sharing some resources, such as hardware, computing, spatial, temporal, and frequency resources, they enable efficient communication and perception design, reducing power consumption, site requirements, and costs.

[0147] For example, Table 2 is an example of different fusion types of an HCS node provided in an embodiment of the present application.

[0148] Table 2

[0149] As shown in Table 2, HCS nodes can have three different fusion types.

[0150] In the first type of fusion, HCS nodes can share hardware resources, including radio frequency resources, baseband resources, time resources, and spectrum resources, but communication signals and perception signals are processed separately. Taking the joint waveform as an example, the advantages of this fusion approach include the simultaneous transmission of communication and perception signals and strong anti-interference capabilities.

[0151] In the second type of fusion, HCS nodes can share radio and baseband resources. In this case, in addition to separate processing of communication and perception signals, communication and perception signals can be transmitted separately through time-division multiplexing or frequency-division multiplexing. Taking the time-division multiplexing waveform as an example, the advantages of this fusion approach include strong independence between communication and perception signals and minimal interference between communication and perception nodes.

[0152] In the third type of fusion, HCS nodes can share baseband resources, and communication signals and perception signals are transmitted using their own resources in the spatial, time, and frequency domains.

[0153] It should be understood that there may be other different fusion types, and the embodiments of the present application are not limited to this.

[0154] (2) Synaesthesia fusion system.

[0155] Depending on whether the transmitter and receiver of the sensing signal are co-located or separated, integrated communication and sensing systems can be categorized as monostatic, bi-static, and multi-static. Multi-static systems are typically hybrid systems consisting of monostatic and bi-static systems. Two typical integrated communication and sensing systems are shown in Figures 3-7.

[0156] FIG3 is a schematic diagram of a single-base system provided by an embodiment of the present application. As shown in FIG3 , a terminal device 110 establishes a communication connection with a network device 120. Terminal device 110 can send uplink data to network device 120, and network device 120 can send downlink data to terminal device 110. The signals between terminal device 110 and network device 120 can be referred to as communication signals. Network device 120 can use communication signals to indicate or configure wireless resources for terminal device 110, which are used for sensing and / or communication. In the single-base system shown in FIG3 , terminal device 110, as an HCS node, also has sensing capabilities. While communicating, it can also send sensing signals to sense the surrounding environment. For example, terminal device 110 can send a sensing signal into the surrounding environment. After the sensing signal is reflected by a sensing target in the environment, terminal device 110 receives an echo signal reflected by the sensing target. Terminal device 110 can then sense and measure the echo signal to obtain a sensing result. For example, terminal device 110 can determine information such as the distance between the sensing target and terminal device 110 and the speed of the sensing target.

[0157] FIG4 is a schematic diagram of another single-base system provided in an embodiment of the present application. As shown in FIG4 , a terminal device 110 establishes a communication connection with a network device 120. The terminal device 110 can send uplink data to the network device 120, and the network device 120 can send downlink data to the terminal device 110. The signals between the terminal device 110 and the network device 120 can be referred to as communication signals. In the single-base system shown in FIG4 , the network device 120, as an HCS node, also has sensing capabilities. While communicating, it can also send sensing signals to sense the surrounding environment. For example, the network device 120 can send a sensing signal to the surrounding environment. After the sensing signal is reflected by a sensing target in the environment, the network device 120 receives an echo signal reflected by the sensing target. In this way, the network device 120 can sense and measure the echo signal to obtain a sensing result. For example, the network device 120 can determine information such as the distance between the sensing target and the network device 120 and the speed of the sensing target.

[0158] Figure 5 is a schematic diagram of a dual-static system provided by an embodiment of the present application. Unlike the monostatic systems shown in Figures 3 and 4, in the dual-static system shown in Figure 5 and the subsequent Figures 6 and 7, the device that transmits the sensing signal and the device that receives the echo signal reflected from the sensing target are two different devices. That is, device A transmits the sensing signal, which is reflected by the sensing target. Device B then receives and senses the echo signal to obtain the sensing result.

[0159] As shown in Figure 5, the terminal device 110 establishes a communication connection with the network device 120. The network device 120 can indicate or configure wireless resources for the terminal device 110 through communication signals. The wireless resources are used for perception and / or communication. As an HCS node, the terminal device 110 also has perception capabilities. While communicating, it can also send perception signals to perceive the surrounding environment. After the perception signal sent by the terminal device 110 is reflected by the perception target in the environment, the network device 120 receives the echo signal reflected by the perception target. Then, the network device 120 performs perception measurement on the echo signal to obtain a perception result. For example, the network device 120 can determine information such as the location of the perception target and the speed of the perception target.

[0160] Figure 6 is a schematic diagram of another dual-base system provided by an embodiment of the present application. In the dual-base system shown in Figure 6, network device 120, as an HCS node, also has sensing capabilities. While communicating, it can also send sensing signals to sense the surrounding environment. After the sensing signal sent by network device 120 is reflected by a sensing target in the environment, the terminal device 110 receives the echo signal reflected by the sensing target. The terminal device 110 then performs sensing measurements on the echo signal to obtain a sensing result. For example, the terminal device 110 can determine information such as the location and speed of the sensing target.

[0161] FIG7 is a schematic diagram of another dual-base system provided by an embodiment of the present application. As shown in FIG7 , terminal device 110 establishes a wireless link connection with network device 120. Terminal device 110 can send uplink data to network device 120, and network device 120 can send downlink data to terminal device 110. The signals between terminal device 110 and network device 120 can be referred to as communication signals. Network device 120 can indicate or configure wireless resources for terminal device 110 through communication signals. These wireless resources are used for sensing and / or communication. In the dual-base system shown in FIG7 , terminal device 110, as an HCS node, also has sensing capabilities. While communicating, it can also send sensing signals to sense the surrounding environment. For example, terminal device 110 can send a sensing signal into the surrounding environment. After the sensing signal is reflected by a sensing target in the environment, terminal device 130 receives an echo signal reflected by the sensing target. Terminal device 130 then senses and measures the echo signal to obtain a sensing result. For example, terminal device 130 can determine information such as the location and speed of the sensing target.

[0162] The term "sensing target" can refer to any tangible object in the environment that can reflect electromagnetic waves, such as mountains, forests, or buildings. It can also include movable objects such as vehicles, drones, pedestrians, and terminal devices. The sensing target may also be referred to as the target, the sensed target, the detected target, the sensed object, the detected object, or the sensed device, and is not limited in this embodiment.

[0163] The above-mentioned perception signal can be called a detection signal, a linear frequency modulation signal, a radar signal, a radar perception signal, a radar detection signal, or an environmental perception signal, etc. The perception signal can be a pulse signal or a signal in a wireless communication system. For example, the perception signal can be an orthogonal frequency division multiplexing (OFDM) signal obtained by modulating a specific sequence on a subcarrier, and the specific sequence can be any one of the following sequences: a Zadoff-Chu sequence (abbreviated as ZC sequence), a pseudo-random sequence, a predefined sequence, etc. Among them, the pseudo-random sequence includes any one of the following sequences: the longest linear feedback shift register sequence (abbreviated as m sequence), a Gold sequence, etc. The predefined sequence can be, for example, a random data symbol, for example, it can be a random data symbol modulated by quadrature phase shift keying (QPSK), 16-quadrature amplitude modulation (QAM), etc.

[0164] Optionally, when the above-mentioned perception signal is used for communication, the perception signal may also be referred to as an HCS signal. It can be understood that the HCS signal carries communication data or a communication reference signal sequence transmitted between communication devices.

[0165] (3) Factors affecting perception.

[0166] The transmitter of the perception signal needs to determine the time domain resource of the perception signal and send the perception signal on the time domain resource. An example of a time domain resource for sending the perception signal is shown in FIG8 .

[0167] The time period shown in Figure 8 includes N+1 time slots. The last symbol of each time slot is used to transmit a perception signal. Within the N+1 time slots, a total of N+1 symbols are used for transmitting perception signals. These N+1 symbols are referred to as perception resources. The transmitter can transmit the perception signal within the last symbol of each time slot. When the perception signal is also used for communication, the perception resource is also referred to as a synaesthesia fusion resource. The perception resources shown in Figure 8 are examples and are not intended to be limiting. The transmitter of the perception signal can also transmit the perception signal over multiple symbols within a time slot.

[0168] The perception signal sent on the last symbol of the mth time slot in Figure 8 can be recorded as Where j is the imaginary unit, φ m is the phase value of the mth time slot, s m(t) is the baseband sensing signal of the mth time slot, m is an integer greater than or equal to 0, m is any value from 0 to N, and N is a positive integer. The echo signal received by the receiving end (i.e., the sensing signal after being reflected by the sensing target) is Among them, τ is the delay of the echo signal relative to the sensing signal, T is the sensing signal sending period, and f d The Doppler shift caused by target motion is detected, where A is the amplitude attenuation of the echo signal relative to the sensing signal. A is affected by path loss and the reflectivity of the target. During sensing measurements, the receiver measures and estimates the time delay of the echo signal relative to the sensing signal to estimate the distance to the target, thus achieving ranging. The receiver also measures and estimates the phase relationship between multiple echo signals to estimate the Doppler shift of the target, thus achieving speed measurement.

[0169] For the speed measurement function, the receiving end needs to measure the phase relationship between multiple echo signals, which requires that the phase values ​​of the multiple perception signals corresponding to the multiple echo signals remain unchanged. In various embodiments of the present application, the absolute value of the difference between the phase values ​​of any two perception signals or multiple perception signals within the error range can be considered as "phase value unchanged". For the sake of brevity, no further details are given. Returning to Figure 8, in time slot 0, the perception signal sent by the transmitting end is Among them, the phase value is φ0; in time slot 1, the perception signal sent by the transmitter is Among them, the phase value is φ1. The speed measurement function requires the transmitter to maintain phase continuity within the perception time period, that is, the phase values ​​of different perception signals within the perception time period are the same or the absolute value of the difference between the phase values ​​of different perception signals is less than the first value. However, the phase value is randomly generated by the radio frequency oscillator and it is difficult to have any regularity. The duration of the time period for sending the perception signal, the change of the transmission power or the transmission power level during the time period for sending the perception signal, or the reception of other signals within a period of time (such as between the last symbol of time slot 0 and the last symbol of time slot 1 in Figure 8) may cause different phase values ​​of different perception signals (such as the perception signal sent in time slot 0 and the perception signal sent in time slot 1 in Figure 8) to be different, making the speed measurement function impossible.

[0170] In various embodiments of the present application, the “phase value” may also be referred to as the “initial phase”, which will not be described in detail for the sake of brevity.

[0171] The following describes a communication method provided by an embodiment of the present application, which can enable the signal sent by the terminal device to meet the requirements of the sensing function. As shown in Figure 9, the method 900 includes the following contents:

[0172] S910 , the terminal device 110 sends first information, where the first information is used to indicate the phase capability of the terminal device 110 .

[0173] Accordingly, the network device 120 receives the first information.

[0174] The first information may be physical layer information, such as uplink control information (UCI), or may be MAC layer or RRC layer information. The embodiment of the present application does not limit the specific type of the first information.

[0175] The aforementioned phase ability can be one of the following abilities:

[0176] Ability to maintain phase continuity;

[0177] The ability to maintain the phase value of the RF link unchanged;

[0178] The ability that an absolute value of a difference between a phase value of a signal sent in a first time unit and a phase value of a signal sent in a second time unit is less than or equal to a first value, and the first time unit and the second time unit belong to a first time period.

[0179] The substantive contents of the above descriptions are equivalent. For example, the terminal device 110 sends two perception signals in a first time period (a time period for sending perception signals, also referred to as a "perception time period") (these two perception signals may be any two perception signals in the first time period), wherein the terminal device 110 sends perception signal 1 in the first time unit and sends perception signal 2 in the second time unit; if the phase values ​​of the two perception signals are equal, or if the absolute value of the difference between the phase values ​​of the two perception signals is less than or equal to the first value, then it can be considered that: the terminal device 110 has the ability to maintain phase continuity in the first time period, or the terminal device 110 has the ability to keep the phase value of the radio frequency link unchanged in the first time period, or the terminal device 110 has the ability to "have the absolute value of the difference between the phase value of the signal sent in the first time unit and the phase value of the signal sent in the second time unit be less than the first value" in the first time period.

[0180] Optionally, the first time unit and the second time unit may be any two time units used to send the perception signal within the first time period. For example, the first time unit and the second time unit may be two adjacent time units used to send the perception signal within the first time period, where the first value is the first threshold; or the first time unit is the first time unit used to send the perception signal within the first time period (or, the earliest time unit used to send the perception signal), and the second time unit is a time unit used to send the perception signal within the first time period other than the first time unit, where the first value is the second threshold.

[0181] Optionally, the first time unit and the second time unit may be any two time units within the first time period. For example, the first time unit and the second time unit may be two adjacent time units within the first time period, wherein the first value is the first threshold value; or, the first time unit may be the first time unit (or the earliest time unit) within the first time period, and the second time unit may be a time unit other than the first time unit within the first time period, wherein the first value is the second threshold value.

[0182] The above-mentioned time unit can be a time slot, and the embodiment of the present application does not limit the specific type of the time unit.

[0183] The first value may be a predefined value, such as a value defined by a protocol; or the first value may be a value configured or indicated by a network device. The embodiment of the present application does not limit the manner in which the terminal device 110 obtains the first value.

[0184] Based on the above example, the terminal device 110 may indicate its own phase capability in different ways, so that the network device 120 indicates the first resource based on the phase capability of the terminal device 110 .

[0185] Phase capability may also be described in other ways, which are not limited in the present embodiment. Below, "the first information is used to indicate the capability of the terminal device 110 to maintain phase continuity" is used as an example for description.

[0186] S920: The network device 120 determines a first resource according to the phase capability.

[0187] The first resource is, for example, the N+1 symbols in FIG8 . The period between the start time and the end time of the first resource can be referred to as the first period, such as the period corresponding to the start position of the last symbol in time slot 0 to the end position of the last symbol in time slot N in FIG8 . As can be seen above, the length of the first period, changes in transmit power or transmit power levels within the first period, or reception of other signals within the first period may all result in different phase values ​​for different perception signals within the first period. Network device 120 may determine the first resource based on different phase capabilities.

[0188] The above-mentioned "time length of the first time period" can also be called "the time period between the start time and the end time of the first resource" or "the time period occupied by the first resource", such as the time period between the start position of the last symbol in time slot 0 and the end position of the last symbol in time slot N in Figure 8.

[0189] The following describes the method for the network device 120 to determine the first resource from these three aspects respectively.

[0190] Ⅰ. The ability to maintain phase continuity includes: the duration of maintaining phase continuity.

[0191] Due to cost constraints, the oscillator of the terminal device 110 may experience oscillation jitter. If the oscillation jitter is severe, the phase value of the RF link of the terminal device 110 will change in a short period of time. If the oscillation jitter is weak, after a sufficiently long time, the cumulative value of the oscillation jitter will be relatively large, and the phase value of the RF link of the terminal device 110 will also change. By reporting the duration of maintaining phase continuity to the network device 120, the network device 120 believes that the phase value of the perception signal sent by the terminal device 110 during the duration remains unchanged. The network device 120 can schedule a first resource with a time length less than or equal to the duration to the terminal device 110, thereby realizing perception functions such as speed measurement.

[0192] Optionally, the terminal device 110 may indicate the number of at least one time unit in the duration through a first field in the first information.

[0193] The terminal device 110 may indicate the duration through the first field shown in Table 3.

[0194] Table 3

[0195] As shown in Table 3, if the value of the first field is 00, it indicates that the terminal device 110 can maintain phase continuity within 1 time unit; if the value of the first field is 01, it indicates that the terminal device 110 can maintain phase continuity within 2 time units; if the value of the first field is 10, it indicates that the terminal device 110 can maintain phase continuity within 4 time units; if the value of the first field is 11, it indicates that the terminal device 110 can maintain phase continuity within 8 time units.

[0196] If more time units need to be indicated by the first field, the first field may be provided with more bits. The time unit may be a time slot, a frame, or another type of time unit. By indicating the number of at least one time unit in the first field, the terminal device 110 can flexibly indicate the duration for maintaining phase continuity.

[0197] As shown in Figure 10, the terminal device 110 sends a perception signal on the last symbol of each time slot, and can keep the phase value of the perception signal unchanged within 8 consecutive time slots. The above duration is 8 time slots, and the terminal device 110 can set the first field to 11, indicating that the terminal device 110 can maintain phase continuity within 8 time slots. After the network device 120 receives the first information, the duration of the first resource determined according to the value of the first field in the first information ("11") can be less than or equal to 8 time slots (an example of duration), so that the multiple perception signals sent by the terminal device 110 on the first resource can maintain phase continuity. In addition, the perception signal sent by the terminal device 110 in the time period outside the duration cannot meet the requirements of the perception function. Therefore, the duration of the first resource is less than or equal to the duration, which can avoid resource waste.

[0198] II. The ability to maintain phase continuity includes: whether phase continuity can be maintained after changes in transmit power or transmit power level.

[0199] The ability to maintain phase continuity may also include one or more of the following:

[0200] Ability to maintain phase continuity after transmission power changes;

[0201] The phase continuity cannot be maintained after the transmission power changes;

[0202] Ability to maintain phase continuity after transmission power level changes;

[0203] Phase continuity cannot be maintained after the transmit power level changes.

[0204] The radio frequency front end of the terminal device 110 generally includes multiple power amplifiers (PAs). When transmitting a signal, the terminal device 110 selects different PAs or PA combinations to amplify the signal according to the required transmission power requirements.

[0205] Figure 11 shows a possible correspondence between transmit power requirements and PAs. The RF front-end of terminal device 110 includes two PAs, designated PA1 and PA2. When a signal needs to be transmitted at a power less than or equal to P1, the RF front-end uses PA1 to amplify the signal and then transmits it via the antenna. When a signal needs to be transmitted at a power greater than P1 but less than or equal to P2, the RF front-end uses PA2 to amplify the signal and then transmits it via the antenna. When a signal needs to be transmitted at a power greater than P2, the RF front-end uses PA1 and PA2 in cascade to amplify the signal and then transmits it via the antenna. Because terminal device 110 may be mobile or have multiple signal transmission requirements, the transmit power requirements of signals at different times may vary. Therefore, when terminal device 110 transmits a signal, PA cascading and switching may be involved.

[0206] Changes in transmit power or transmit power levels may affect phase continuity. If the terminal device 110 is able to maintain phase continuity after a change in transmit power, the terminal device 110 may inform the network device 120 of this capability. The network device 120 may indicate a matching first resource to the terminal device 110 based on this capability. The terminal device 110 may adjust the transmit power during a period between the start and end times of the first resource, wherein the transmit power before and after the adjustment is within a transmit power interval for maintaining phase continuity. For example, the transmit power interval is [A, B], and the transmit power during the first time period may be adjusted between the power interval [A, B].

[0207] If the terminal device 110 is capable of maintaining phase continuity after the transmission power level changes, the terminal device 110 may inform the network device 120 of this capability. The network device 120 may indicate a matching first resource to the terminal device 110 based on this capability. The terminal device 110 may adjust the transmission power level during the period between the start time and the end time of the first resource, wherein the transmission power levels before and after the adjustment are within the transmission power interval for maintaining phase continuity. For example, the transmission power interval is [A, C]. The transmission power level within the first time period may be adjusted from power level [A, B] to power level [B, C], where A is less than or equal to B, and B is less than or equal to C.

[0208] If the terminal device 110 is capable of maintaining phase continuity in some transmission power intervals, the terminal device 110 may inform the network device 120 of this capability, and the network device 120 may indicate a matching first resource to the terminal device 110 based on this capability of the terminal device 110, with the transmission power before and after adjustment being within the transmission power interval that maintains phase continuity. For example, the transmission power interval is [A, B], and the transmission power within the first time period may be adjusted between the power interval [A, B].

[0209] In this way, the terminal device 110 can flexibly adapt to different communication scenarios while ensuring that the multiple signals sent on the first resource maintain phase continuity.

[0210] If the terminal device 110 cannot maintain phase continuity after the transmission power or the transmission power level changes, the terminal device 110 may also inform the network device 120 of its own capability. The network device 120 may indicate a matching first resource to the terminal device 110 based on the capability of the terminal device 110. The terminal device 110 may maintain the transmission power or the transmission power level unchanged during the period between the start time and the end time of the first resource. In this way, the terminal device 110 can ensure that the multiple signals sent on the first resource maintain phase continuity.

[0211] Optionally, the terminal device 110 may indicate through the second field whether phase continuity can be maintained after a change in the transmission power or a change in the transmission power level.

[0212] The second field and the first field may belong to the same information (for example, both belong to the first information), or may belong to different information, which is not limited in this embodiment of the present application.

[0213] For example, the second field includes 1 bit. When the second field is 0, it indicates that the phase continuity cannot be maintained after the transmission power changes or the transmission power level changes within the first time period; when the second field is 1, it indicates that the phase continuity can be maintained after the transmission power changes or the transmission power level changes within the first time period.

[0214] If the second field is 1, the network device 120 can schedule the first resource according to Figure 12. As shown in Figure 12, the perception resource (i.e., the first resource) includes the last symbol of time slot 0 and the last symbol of time slot 1. Time slot 1 also includes non-perception resources, wherein the non-perception resources are used to send non-perception signals. For example, when the terminal device 110 sends an uplink signal on the non-perception resource, the non-perception resource can be used to carry the physical uplink shared channel (PUSCH); when the terminal device 110 sends a sidelink signal on the non-perception resource, the non-perception resource can be used to carry the physical sidelink shared channel (PSSCH). The embodiment of the present application does not limit the specific form of the non-perception resource. The transmission power of the terminal device 110 on the non-perception resource and the transmission power of the terminal device 110 on the perception resource can be the same or different. The terminal device 110 can send a perception signal with an unchanged phase value on the perception resource shown in Figure 12.

[0215] For example, the power at which the terminal device 110 transmits the perception signal during the first time period is power 1, and the power at which the terminal device 110 transmits data on the PUSCH during the first time period is power 2. The transmit power levels that maintain phase continuity include [P1, P2] and [P2, P3]. Power 1 belongs to [P1, P2], and power 2 belongs to [P2, P3]. Therefore, the perception signal transmitted by the terminal device 110 during the first time period can maintain phase continuity.

[0216] For another example, the power level at which the terminal device 110 transmits the perception signal during the first time period is [P1, P2], and the power level at which the terminal device 110 transmits data on the PUSCH during the first time period is [P2, P3]. The transmit power levels that maintain phase continuity include [P1, P2] and [P2, P3]. [P1, P2] and [P2, P3] are transmit power levels that maintain phase continuity. Therefore, the perception signal transmitted by the terminal device 110 during the first time period can maintain phase continuity.

[0217] If the second field is 0, the network device 120 may schedule the first resource according to FIG12 , wherein the network device 120 configures the transmit power of the non-perceptual resource so that the transmit power of the terminal device 110 on the non-perceptual resource is the same as the transmit power of the terminal device 110 on the perceptual resource. Alternatively, the network device 120 may schedule the first resource according to FIG13 .

[0218] For example, the power of the perception signal sent by the terminal device 110 in the first time period is power 1, the power of the data sent by the terminal device 110 on the PUSCH in the first time period is power 1, and the transmission power of the terminal device 110 in the first time period remains unchanged. Therefore, the perception signal sent by the terminal device 110 in the first time period can maintain phase continuity.

[0219] For another example, the power level at which the terminal device 110 sends the perception signal in the first time period is [P1, P2], and the power level at which the terminal device 110 sends data on the PUSCH in the first time period is [P1, P2]. The transmission power level of the terminal device 110 in the first time period remains unchanged. Therefore, the perception signal sent by the terminal device 110 in the first time period can maintain phase continuity.

[0220] As shown in Figure 13, the perception resources (i.e., the first resources) include the last symbol of time slot 1 and the last symbol of time slot 2. Time slot 1 also includes non-perception resources. Non-perception resources can be used to carry PUSCH or PSSCH. There are no non-perception resources in the time period between any two perception resources. In this way, the transmission power or transmission power level of the perception signal sent by the terminal device 110 in time slot 1 and time slot 2 remains unchanged, which matches the phase capability of the terminal device 110. The terminal device 110 can send a perception signal with an unchanged phase value on the perception resources shown in Figure 13.

[0221] Optionally, the terminal device 110 can maintain phase continuity within the first transmission power interval, and the terminal device 110 can inform the network device 120 of the first power interval through the third field.

[0222] The third field, the second field, and the first field may belong to the same information (for example, all belong to the first information), or may belong to different information, which is not limited in this embodiment of the present application.

[0223] Optionally, the third field may include multiple bits, and the multiple bits are used to indicate the first transmit power interval. In various embodiments of the present application, the transmit power interval may also be referred to as a transmit power level.

[0224] In one implementation manner, the first transmission power range is described in conjunction with Table 4.

[0225] Table 4

[0226] In Table 4, the bits in the third field can take different values ​​to indicate different power values, "00" indicates power value A, "01" indicates power value B, "10" indicates power value C, and "11" indicates power value D. The terminal device 110 can indicate multiple power values ​​through multiple third fields. For example, the third field can be set to 0010 to indicate power value A and power value C. These two power values ​​can represent the two endpoints of a transmit power interval, that is, the power interval [A, C].

[0227] For example, terminal device 110 is capable of maintaining phase continuity within the first transmit power interval [A, B]. Terminal device 110 may send power value A and power value B to network device 120 via the third field. According to Table 4, the third field may be set to 0001. After receiving the third field, network device 120 determines that terminal device 110 is capable of maintaining phase continuity within the first transmit power interval. Network device 120 may determine that the left endpoint of the first transmit power interval is A based on the first two bits 00 in the third field, and the right endpoint of the first transmit power interval is B based on the last two bits 01. Network device 120 may schedule the first resource according to FIG12 and limit the transmit power of the sensing resource and the non-sensing resource to within the power interval [A, B].

[0228] For another example, terminal device 110 is capable of maintaining phase continuity within the first transmit power interval [B, D]. Terminal device 110 may send power values ​​B and D to network device 120 via the third field. According to Table 4, the third field may be set to 0111. After receiving the third field, network device 120 determines that terminal device 110 is capable of maintaining phase continuity within the first transmit power interval. Network device 120 may determine that the left endpoint of the first transmit power interval is B based on the first two bits 01 in the third field, and that the right endpoint of the first transmit power interval is D based on the last two bits 11. Network device 120 may schedule the first resource according to FIG12 and limit the transmit power of the sensing resource and the non-sensing resource to within the power interval [B, D].

[0229] In another implementation manner, the first transmission power range is described in conjunction with Table 5.

[0230] Table 5

[0231] In Table 4, the bits in the third field can take different values ​​to indicate different power values. "00" indicates that phase continuity cannot be maintained after the transmit power changes, "01" indicates the power interval [A, B], "10" indicates the power interval [B, C], and "11" indicates the power interval [C, D]. The terminal device 110 can indicate multiple power intervals through multiple third fields. For example, the third field is set to 0110 to indicate the power interval [A, B] and the power interval [B, C]. These two power intervals can represent a transmit power interval that maintains phase continuity, that is, the power interval [A, C].

[0232] For example, terminal device 110 is capable of maintaining phase continuity within the first transmit power interval [C, D]. Terminal device 110 may send the power interval [C, D] to network device 120 via the third field. According to Table 5, the third field may be set to 11. After receiving the third field, network device 120 determines that terminal device 110 is capable of maintaining phase continuity within the first transmit power interval. Network device 120 may determine that the first transmit power interval is [C, D] based on bit 11 in the third field. Network device 120 may schedule the first resource according to FIG12 and limit the transmit power levels of the sensing resources and non-sensing resources to within the power interval [C, D].

[0233] For another example, the terminal device 110 cannot maintain phase continuity after the transmission power changes. According to Table 5, the terminal device 110 can set the third field to 00. After the network device 120 receives the third field, the network device 120 can determine that the terminal device 110 cannot maintain phase continuity after the transmission power changes based on the bit 00 in the third field. The network device 120 can schedule the first resource according to Figure 12, and set the transmission power of the non-perceptual resource and the transmission power of the perceptual resource to the same power.

[0234] The third field may also include more or fewer bits, and the embodiment of the present application does not limit the specific type of the third field.

[0235] The terminal device 110 may send the third field and the second field, or may send only the third field without sending the second field.

[0236] Optionally, the terminal device 110 may send the second field only when the phase continuity can be maintained after the transmission power changes or the transmission power level changes, wherein the second field indicates that the phase continuity can be maintained after the transmission power changes or the transmission power level changes; or, the terminal device 110 may send the second field only when the phase continuity cannot be maintained after the transmission power changes or the transmission power level changes, wherein the second field indicates that the phase continuity cannot be maintained after the transmission power changes or the transmission power level changes; or, regardless of whether the phase continuity can be maintained after the transmission power changes or the transmission power level changes, the terminal device 110 sends the second field, wherein the second field indicates whether the phase continuity can be maintained after the transmission power changes or the transmission power level changes.

[0237] III. The ability to maintain phase continuity includes: whether the phase continuity can be maintained after receiving the signal.

[0238] The ability to maintain phase continuity may also include one or more of the following:

[0239] Ability to maintain phase continuity after receiving the signal;

[0240] The phase continuity cannot be maintained after receiving the signal.

[0241] Time division duplexing is a typical duplexing method that uses time division to send and receive data. The received signal may affect the phase continuity of the transmitted signal. If the terminal device 110 is able to maintain phase continuity after receiving the signal, the terminal device 110 can inform the network device 120 of its own ability. The network device 120 can indicate a matching first resource to the terminal device 110 based on this ability of the terminal device 110. The terminal device 110 can receive signals during the period between the start time and the end time of the first resource. In this way, the terminal device 110 can flexibly adapt to different communication scenarios while ensuring that the multiple signals sent on the first resource maintain phase continuity.

[0242] If the terminal device 110 cannot maintain phase continuity after receiving the signal, the terminal device 110 can inform the network device 120 of its own capability. The network device 120 can indicate a matching first resource to the terminal device 110 based on the capability of the terminal device 110. The terminal device 110 can only send signals during the period between the start time and the end time of the first resource. In this way, the terminal device 110 can also ensure that the multiple signals sent on the first resource maintain phase continuity.

[0243] Optionally, the terminal device 110 may indicate through the fourth field whether phase continuity can be maintained after receiving the signal.

[0244] The fourth field, the third field, the second field and the first field may belong to the same information (for example, all belong to the first information), or may belong to different information, and this embodiment of the present application does not limit this.

[0245] For example, the fourth field includes 1 bit. When the fourth field is 0, it indicates that the phase continuity cannot be maintained after the signal is received; when the fourth field is 1, it indicates that the phase continuity can be maintained after the signal is received.

[0246] If the fourth field is 1, the network device 120 can schedule the first resource according to Figure 14. As shown in Figure 14, the perception resource (i.e., the first resource) includes four symbols in time slot 0 and four symbols in time slot 2, and time slot 1 includes non-perception resources, wherein the non-perception resources are used to receive signals. For example, when the terminal device 110 receives a downlink signal on the non-perception resource, the non-perception resource can be used to carry the physical downlink shared channel (PDSCH) of the terminal device 110; when the terminal device 110 receives a sidelink signal on the non-perception resource, the non-perception resource can be used to carry the PSSCH. The embodiment of the present application does not limit the specific form of the non-perception resource. The terminal device 110 can send a perception signal with an unchanged phase value on the perception resource shown in Figure 14.

[0247] If the fourth field is 0, the network device 120 can schedule the first resource according to Figure 15. As shown in Figure 15, the sensing resources (i.e., the first resources) include four symbols in time slot 2 and four symbols in time slot 3. Time slot 1 includes non-sensing resources, which can be used to carry PDSCH or PSSCH. There are no non-sensing resources for receiving signals during the time period where the sensing resources are located. In this way, the terminal device 110 does not receive signals during the time period when the sensing signal is sent in time slot 2 and time slot 3. The sensing resources match the phase capability of the terminal device 110, and the terminal device 110 can send a sensing signal with a constant phase value on the sensing resources shown in Figure 15.

[0248] Optionally, the terminal device 110 may send the fourth field only when the phase continuity can be maintained after the signal is received, wherein the fourth field indicates that the phase continuity can be maintained after the signal is received; or, the terminal device 110 may send the fourth field only when the phase continuity cannot be maintained after the signal is received, wherein the fourth field indicates that the phase continuity cannot be maintained after the signal is received; or, regardless of whether the phase continuity can be maintained after the signal is received, the terminal device 110 sends the fourth field, wherein the fourth field indicates whether the phase continuity can be maintained after the signal is received.

[0249] The above details different types of phase capabilities and examples of network device 120 scheduling first resources based on these different types of phase capabilities. Optionally, terminal device 110 may report one phase capability or multiple phase capabilities. When terminal device 110 reports multiple phase capabilities, network device 120 needs to schedule first resources that meet the requirements of multiple phase capabilities simultaneously.

[0250] For example, the terminal device 110 reports through the first field that the duration of maintaining phase continuity is 8 consecutive time slots, and reports through the second field that the phase continuity cannot be maintained after the transmission power changes, then the first resource scheduled by the network device 120 needs to meet the following requirements: the duration is less than or equal to 8 time slots, and there are no resources for sending signals between the start time and the end time of the first resource (or, there are resources for sending signals between the start time and the end time of the first resource, but the transmission power corresponding to the resource is the same as the transmission power of the first resource).

[0251] For another example, the terminal device 110 reports through the first field that the duration of maintaining phase continuity is 8 consecutive time slots, and reports the transmission power interval [C, D] through the third field, and can maintain phase continuity after reporting the received signal through the fourth field, then the first resource scheduled by the network device 120 needs to meet the following requirements: the duration is less than or equal to 8 time slots; and, between the start time and the end time of the first resource, there may be resources for sending non-perceptual signals, and the resources for sending non-perceptual signals are, for example, PUSCH or PSSCH, and the corresponding transmission power level of the resource needs to be limited to the transmission power interval [C, D] (or, there are no resources for sending non-perceptual signals between the start time and the end time of the first resource), and the corresponding transmission power of the first resource is within the power interval [C, D]; and, between the start time and the end time of the first resource, there may be resources for receiving signals (or, there are no resources for receiving signals between the start time and the end time of the first resource), and the resources for receiving signals are, for example, PDSCH or PSSCH.

[0252] It should be noted that if the terminal device 110 reports the phase capability through multiple fields (such as the first field, second field, third field and fourth field mentioned above), the multiple fields can be located in the same information (such as the first information) or in different information. The embodiment of the present application does not limit this.

[0253] Optionally, the above-mentioned multiple fields can be fields in an RRC layer message; they can also be fields in a MAC layer message, such as fields in a MAC control element (CE); they can also be fields in a physical layer message, such as fields in UCI.

[0254] After determining the first resource, the network device 120 performs the following steps.

[0255] S930: The network device 120 sends second information, where the second information is used to indicate the first resource.

[0256] Accordingly, the terminal device 110 receives the second information.

[0257] The second information is used to indicate the first resource, and can also be expressed as:

[0258] The second information is used to configure the first resource; or,

[0259] The second information is used to reconfigure the first resource; or,

[0260] The second information is used to schedule the first resource.

[0261] The second information may be a field in an RRC layer message; may also be a field in a MAC layer message, such as a MAC CE; may also be a field in a physical layer message, such as a field in downlink control information (DCI).

[0262] This embodiment of the present application does not limit the message that carries the second information.

[0263] S940, the terminal device 110 sends a first signal on a first resource.

[0264] Accordingly, the network device 120 receives the first signal, wherein the first signal received by the network device 120 may be a signal reflected by a sensing target in the environment, that is, an echo signal.

[0265] The first signal may be a reference signal. In this case, the first signal may be used for channel estimation and / or channel measurement. The first signal may also be used for sensing. In addition to sensing, the first signal may also be used for communication. This embodiment of the present application does not limit the functions of the first signal other than sensing.

[0266] In addition, the first signal can also be called a first channel, first data, perception information, perception signal, synaesthesia signal, synaesthesia fusion signal, etc. The embodiment of the present application does not limit the specific form of the first signal.

[0267] The perception function requires that the transmitted signal maintain a stable phase value over a period of time. Different terminal devices have different phase capabilities. If the resource used to transmit the signal does not take the terminal device's phase capability into account, the signal transmitted by the terminal device may not maintain a stable phase value. In method 900, terminal device 110 notifies network device 120 of its phase capability. Network device 120 can indicate a first resource based on the phase capability of terminal device 110. In this way, the first resource matches the phase capability of terminal device 110, and the first signal transmitted by terminal device 110 on the first resource can meet the requirements of the perception function.

[0268] The above describes in detail the method examples provided by the embodiments of the present application. It is understandable that, in order to implement the above functions, the corresponding device includes hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should easily appreciate that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in a hardware or computer software driven hardware manner depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0269] FIG16 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application. The device 1600 includes a processing unit 1610 and a transceiver unit 1620. The transceiver unit 1620 performs a receiving step and / or a sending step under the control of the processing unit 1610. Specifically, the transceiver unit 1620 functions as a sending unit when performing the sending step and as a receiving unit when performing the receiving step.

[0270] The transceiver unit 1620 is used to: send first information, where the first information is used to indicate the phase capability of the terminal device; and send a first signal on a first resource, where the first resource is determined based on the phase capability.

[0271] Optionally, the above-mentioned phase capability includes: the ability to maintain phase continuity; or the ability to keep the phase value of the radio frequency link unchanged; or the ability that the absolute value of the difference between the phase value of the signal sent in the first time unit and the phase value of the signal sent in the second time unit is less than or equal to the first value, and the first time unit and the second time unit belong to the first time period.

[0272] Optionally, the above-mentioned phase capability includes: maintaining the duration of phase continuity.

[0273] Optionally, the duration of the first resource is less than or equal to the duration.

[0274] Optionally, the first information includes a first field, and the first field is used to indicate the number of at least one time unit included in the duration.

[0275] Optionally, the above-mentioned phase capability includes: being able to maintain phase continuity after the transmission power changes or the transmission power level changes, and / or maintaining a transmission power range for phase continuity.

[0276] Optionally, the above-mentioned phase capability includes: the phase continuity cannot be maintained after the transmission power changes or the transmission power level changes; the transmission power or transmission power level of the terminal device remains unchanged during the period between the start time and the end time of the first resource.

[0277] Optionally, the above-mentioned phase capability includes: being able to maintain phase continuity after receiving the signal.

[0278] Optionally, the above-mentioned phase capability includes: being unable to maintain phase continuity after receiving a signal; and the terminal device can only send signals during the period between the start time and the end time of the first resource.

[0279] Optionally, before sending the first signal on the first resource, the transceiver unit 1620 is further used to: receive second information, where the second information is used to indicate the first resource.

[0280] Optionally, the first signal is used for sensing.

[0281] Those skilled in the art can clearly understand that the specific working process of the device 1600 and the technical effects produced by the execution steps can be referred to the description in the aforementioned corresponding method embodiment. For the sake of brevity, they will not be repeated here.

[0282] Device 1600 may be a terminal device or a chip. Processing unit 1610 may be implemented by hardware or software. When implemented by hardware, processing unit 1610 may be a logic circuit, an integrated circuit, or the like. When implemented by software, processing unit 1610 may be a general-purpose processor implemented by reading software code stored in a storage unit. The storage unit may be integrated into processing unit 1610 or located independently of processing unit 1610.

[0283] FIG17 is a schematic diagram of the structure of another communication device provided in an embodiment of the present application. The device 1700 includes a processing unit 1710 and a transceiver unit 1720. The transceiver unit 1720 performs a receiving step or a sending step under the control of the processing unit 1710. Specifically, the transceiver unit 1720 is a sending unit when performing the sending step, and is a receiving unit when performing the receiving step.

[0284] The transceiver unit 1720 is configured to: receive first information, where the first information is used to indicate the phase capability of the terminal device;

[0285] The processing unit 1710 is configured to: determine a first resource according to the phase capability;

[0286] The transceiver unit 1720 is further configured to receive a first signal on a first resource.

[0287] Optionally, the above-mentioned phase capability includes: the ability to maintain phase continuity; or the ability to keep the phase value of the radio frequency link unchanged; or the ability that the absolute value of the difference between the phase value of the signal sent in the first time unit and the phase value of the signal sent in the second time unit is less than or equal to the first value, and the first time unit and the second time unit belong to the first time period.

[0288] Optionally, the above-mentioned phase capability includes: maintaining the duration of phase continuity.

[0289] Optionally, the duration of the first resource is less than or equal to the duration.

[0290] Optionally, the first information includes a first field, and the first field is used to indicate the number of at least one time unit included in the duration.

[0291] Optionally, the above-mentioned phase capability includes: being able to maintain phase continuity after the transmission power changes or the transmission power level changes, and / or maintaining a transmission power range for phase continuity.

[0292] Optionally, the above-mentioned phase capability includes: the phase continuity cannot be maintained after the transmission power changes or the transmission power level changes; the transmission power or transmission power level of the terminal device remains unchanged during the period between the start time and the end time of the first resource.

[0293] Optionally, the above-mentioned phase capability includes: being able to maintain phase continuity after receiving the signal.

[0294] Optionally, the above-mentioned phase capability includes: being unable to maintain phase continuity after receiving a signal; and the terminal device can only send signals during the period between the start time and the end time of the first resource.

[0295] Optionally, before receiving the first signal on the first resource, the method further includes: sending second information, where the second information is used to indicate the first resource.

[0296] Optionally, the first signal is used for sensing.

[0297] Those skilled in the art can clearly understand that the specific working process of device 1700 and the technical effects produced by the execution steps can be referred to the description in the aforementioned corresponding method embodiment. For the sake of brevity, they will not be repeated here.

[0298] Device 1700 may be a network device or a chip. Processing unit 1710 may be implemented in hardware or software. When implemented in hardware, processing unit 1710 may be a logic circuit, an integrated circuit, or the like. When implemented in software, processing unit 1710 may be a general-purpose processor implemented by reading software code stored in a storage unit. The storage unit may be integrated into processing unit 1710 or located independently of processing unit 1710.

[0299] Figure 18 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application. For ease of illustration, Figure 18 only shows the main components of terminal device 1800. Terminal device 1800 can be used in the system shown in Figure 1 to implement the functions of the terminal device in the above-mentioned method embodiment. As shown in the device figure, terminal device 1800 includes a processor, memory, control circuitry, an antenna, and input / output devices. The processor is primarily used to process communication protocols and communication data, as well as control the entire terminal device, execute software programs, and process software program data, for example, to support the terminal device in performing the actions described in the above-mentioned method embodiment. The memory is primarily used to store software programs and data. The control circuit is primarily used to convert digital signals into radio frequency signals and process radio frequency signals. The control circuitry and antenna together can also be referred to as a transceiver, which is primarily used to transmit and receive radio frequency signals in the form of electromagnetic waves. The input / output devices, such as a touch screen, display screen, and keyboard, are primarily used to receive data input by the user and output data to the user.

[0300] When a terminal device is powered on, the processor reads the software program in memory, interprets and executes its instructions, and processes the data. When data needs to be sent wirelessly, the processor processes the data and outputs a digital signal to the RF circuit. The RF circuit then processes the digital signal and transmits it as electromagnetic waves via the antenna. When data is sent to the terminal device, the RF circuit receives the RF signal via the antenna, converts it into a digital signal, and outputs the digital signal to the processor, which converts the digital signal into data and processes it.

[0301] Those skilled in the art will appreciate that, for ease of explanation, FIG18 illustrates only one memory and one processor. In an actual terminal device, multiple processors and multiple memories may exist. A memory may also be referred to as a storage medium or storage device, etc., which is not limited in this application.

[0302] As an optional implementation, the processor may include a baseband processor and / or a central processing unit (CPU). The baseband processor is primarily responsible for processing communication protocols and communication data, while the CPU is primarily responsible for controlling the entire terminal device, executing software programs, and processing data from software programs. The processor in Figure 18 may integrate the functions of a baseband processor and a CPU. Those skilled in the art will appreciate that the baseband processor and the CPU may also be independent processors interconnected via a bus or other technology. Those skilled in the art will appreciate that a terminal device may include multiple baseband processors to accommodate different network standards, multiple CPUs to enhance its processing capabilities, and that the various components of the terminal device may be connected via various buses. The baseband processor may also be referred to as a baseband processing circuit or a baseband processing chip. The CPU may also be referred to as a central processing circuit or a central processing chip. The function of processing communication protocols and communication data may be built into the processor or stored in memory as a software program, with the processor executing the software program to implement the baseband processing function.

[0303] In the embodiments of the present application, the antenna and control circuit with transceiver functions can be regarded as the transceiver unit 1801 of the terminal device 1800, for example, used to support the terminal device to implement the receiving function and transmitting function described in the method embodiment. The processor with processing function can be regarded as the processor 1802 of the terminal device 1800. The terminal device 1800 includes a transceiver unit 1801 and a processor 1802. The transceiver unit 1801 can also be referred to as a transceiver, a transceiver, a transceiver device, etc. For example, the device used to implement the receiving function in the transceiver unit 1801 can be regarded as a receiving unit, and the device used to implement the transmitting function in the transceiver unit 1801 can be regarded as a transmitting unit, that is, the transceiver unit 1801 includes a receiving unit and a transmitting unit. The receiving unit can also be referred to as a receiver, an input port, a receiving circuit, etc., and the transmitting unit can be referred to as a transmitter, a transmitter, or a transmitting circuit, etc. For example, the transceiver unit 1801 can include no antenna and only include the circuit portion, so that the antenna is external to the transceiver unit.

[0304] Processor 1802 can be used to execute instructions stored in the memory to control transceiver unit 1801 to receive and / or transmit signals, thereby completing the functions of the terminal device in the above-mentioned method embodiment. As an implementation method, the functions of transceiver unit 1801 can be implemented by a transceiver circuit or a dedicated transceiver chip. When performing the transmission and reception of various signals, processor 1802 controls transceiver unit 1801 to implement the reception. Therefore, processor 1802 is the signal transmission and reception decision maker and initiates data transmission and reception operations, while transceiver unit 1801 is the executor of signal transmission and reception.

[0305] Figure 19 is a schematic diagram of the structure of a network device provided in an embodiment of the present application. For ease of explanation, Figure 19 only shows the main components of the network device 1900. The network device 1900 can be applied to the system shown in Figure 1 to implement the functions of the network device in the above method embodiment. As shown in Figure 19, the network device 1900 may include one or more DUs 1910 and one or more CUs 1920. The DU 1910 may include at least one antenna 1911, at least one radio frequency unit 1912, at least one processor 1913, and at least one memory 1914. The CU 1920 can communicate with the core network, and the CU 1920 may include at least one processor 1922 and at least one memory 1921.

[0306] The DU 1910 is primarily responsible for transmitting and receiving RF signals, converting RF signals into baseband signals, and performing some baseband processing functions. The CU 1920 includes at least one processor 1922 and at least one memory 1921. The CU 1920 and DU 1910 can communicate via interfaces. The control plane (CP) interface can be an Fs-C interface, such as F1-C, and the user plane (UP) interface can be an Fs-U interface, such as F1-U.

[0307] CU1920 is the control center of network device 1900, also known as a processing unit. It primarily performs baseband processing functions such as channel coding, multiplexing, modulation, and spread spectrum. For example, CU1920 can be used to control network device 1900 to execute the network device operation procedures described in the above method embodiments. DU1910 and CU1920 can be physically co-located or physically separated, i.e., a distributed base station.

[0308] The baseband processing functions on the DU1910 and CU1920 can be divided according to the protocol layers of the wireless network. For example, the functions of the PDCP layer and above are set on the CU1920, and the functions of the protocol layers below PDCP are set on the DU1910.

[0309] In an optional embodiment, DU1910 can be composed of one or more single boards, and multiple single boards can jointly support a wireless access network with a single access indication (such as an NR network), or can separately support wireless access networks with different access standards (such as an LTE network and an NR network). The memory 1914 is used to store necessary instructions and data, and the processor 1913 is used to control the network device 1900 to perform necessary actions. The memory 1914 and the processor 1913 can serve one or more single boards. In other words, a memory and a processor can be set separately on each single board. It is also possible to set a shared memory and processor for multiple single boards. In addition, necessary circuits can also be set on each single board.

[0310] In an optional embodiment, CU1920 can be composed of one or more single boards, and multiple single boards can jointly support a wireless access network with a single access indication (such as an NR network), or can respectively support wireless access networks with different access standards (such as an LTE network and an NR network). The memory 1921 is used to store necessary instructions and data, and the processor 1922 is used to control the network device 1900 to perform necessary actions, such as controlling the network device 1900 to execute the operation process of the network device in the above method embodiment. The memory 1921 and the processor 1922 can serve one or more single boards. That is, a memory and a processor can be set separately on each single board. It is also possible to set a shared memory and processor for multiple single boards. In addition, necessary circuits can also be set on each single board.

[0311] It should be understood that network device 1900 shown in FIG19 is capable of implementing each process related to the network device in the method embodiments. The operations and / or functions of each module in network device 1900 are respectively for implementing the corresponding processes in the above method embodiments. For details, please refer to the description of the above method embodiments and will not be repeated here.

[0312] It should be understood that the network device 1900 shown in FIG19 is only one possible architecture of a network device and does not constitute any limitation to this application. The method provided in this application is applicable to network devices with other architectures. For example, a network device including a CU, DU, and AAU, or a network device including a BBU and RRU. This application does not limit the specific architecture of the network device.

[0313] It is understood that the processor in each embodiment of the present application can be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above-mentioned method embodiment can be completed by hardware integrated logic circuits in the processor or by software instructions. The above-mentioned processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the various embodiments of the present application can be directly implemented and executed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium well-known in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and, in conjunction with its hardware, completes the steps of the above-mentioned method.

[0314] It is understood that the memory in each embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct RAM bus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0315] It can be understood that the chip in each embodiment of the present application can be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), a central processor unit (CPU), a network processor (NP), a digital signal processor (DSP), a microcontroller unit (MCU), a programmable logic device (PLD) or other integrated chips.

[0316] During implementation, each step of the above method can be completed by an integrated logic circuit of the hardware in the processor or by instructions in the form of software. The steps of the method disclosed in conjunction with the embodiments of the present application can be directly embodied as being executed by a hardware processor, or can be executed by a combination of hardware and software modules in the processor. The software module can be located in a storage medium mature in the art such as a random access register, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in a memory, and the processor reads the information in the memory and completes the steps of the above method in conjunction with its hardware. To avoid repetition, it will not be described in detail here.

[0317] The present application also provides a computer-readable medium having a computer program stored thereon, which implements the functions of any of the above method embodiments when executed by a computer.

[0318] The present application also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.

[0319] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless or microwave, etc.) method. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0320] It should be understood that the “embodiment” mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, the various embodiments in the entire specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in various embodiments of the present application, the terminal device and / or the network device can perform some or all of the steps in each embodiment. These steps or operations are merely examples, and the embodiments of the present application can also perform other operations or variations of various operations. In addition, the various steps can be performed in a different order than presented in the various embodiments, and it is possible that not all operations in the embodiments of the present application need to be performed. Moreover, the size of the sequence number of each of the above processes does not mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0321] It should also be understood that in this application, "when", "if" and "if" all mean that the UE or base station will take corresponding measures under certain objective circumstances. It does not limit the time, and does not require the UE or base station to take judgment actions when implementing it, nor does it mean that there are other limitations.

[0322] Additionally, the terms "system" and "network" are often used interchangeably. The term "and / or" is simply used to describe an association between related objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone.

[0323] It should be understood that in each embodiment of the present application, "B corresponding to A" means that B is associated with A and B can be determined based on A. However, it should also be understood that determining B based on A does not mean determining B based solely on A, but B can also be determined based on A and / or other information.

[0324] The above contents are optional embodiments of the technical solution of this application and are not intended to limit the scope of protection of this application. Any modifications, equivalent replacements, improvements, etc. made within the principles of this application should be included in the scope of protection of this application.

Claims

1. A communication method, characterized in that: include: Sending first information, where the first information is used to indicate a phase capability of a terminal device; A first signal is sent on a first resource, the first resource being determined based on the phase capability.

2. The method according to claim 1, characterized in that The phase capabilities include: The ability to maintain phase continuity; or, The ability to maintain a constant phase value in a radio frequency link; or, The ability that an absolute value of a difference between a phase value of a signal sent in a first time unit and a phase value of a signal sent in a second time unit is less than or equal to a first value, and the first time unit and the second time unit belong to a first time period.

3. The method according to claim 1 or 2, characterized in that: The phase capability includes: a duration for maintaining phase continuity.

4. The method according to claim 3, characterized in that: The duration of the first resource is less than or equal to the duration.

5. The method according to claim 3 or 4, characterized in that: The first information includes a first field, and the first field is used to indicate the number of at least one time unit included in the duration.

6. The method according to any one of claims 1 to 5, characterized in that The phase capability includes: being able to maintain phase continuity after a change in transmit power or a change in transmit power level, and / or a transmit power interval within which phase continuity is maintained.

7. The method according to any one of claims 1 to 5, characterized in that The phase capability includes: the inability to maintain phase continuity after the transmission power changes or the transmission power gear changes; During the time period between the start time and the end time of the first resource, the transmission power or the transmission power level of the terminal device remains unchanged.

8. The method according to any one of claims 1 to 7, characterized in that The phase capability includes: being able to maintain phase continuity after receiving a signal.

9. The method according to any one of claims 1 to 7, characterized in that The phase capability includes: the inability to maintain phase continuity after receiving the signal; During the period between the start time and the end time of the first resource, the terminal device can only send signals.

10. The method according to any one of claims 1 to 9, characterized in that Before sending the first signal on the first resource, the method further includes: Second information is received, where the second information is used to indicate the first resource.

11. The method according to any one of claims 1 to 10, characterized in that The first signal is used for sensing.

12. A communication method, characterized in that: include: receiving first information, where the first information is used to indicate a phase capability of a terminal device; determining a first resource according to the phase capability; A first signal is received on the first resource.

13. The method according to claim 12, characterized in that The phase capabilities include: The ability to maintain phase continuity; or, The ability to maintain a constant phase value in a radio frequency link; or, The ability that an absolute value of a difference between a phase value of a signal sent in a first time unit and a phase value of a signal sent in a second time unit is less than or equal to a first value, and the first time unit and the second time unit belong to a first time period.

14. The method according to claim 12 or 13, characterized in that The phase capability includes: a duration for maintaining phase continuity.

15. The method according to claim 14, characterized in that The duration of the first resource is less than or equal to the duration.

16. The method according to claim 14 or 15, characterized in that The first information includes a first field, and the first field is used to indicate the number of at least one time unit included in the duration.

17. The method according to any one of claims 12 to 16, characterized in that The phase capability includes: being able to maintain phase continuity after a change in transmit power or a change in transmit power level, and / or a transmit power interval within which phase continuity is maintained.

18. The method according to any one of claims 12 to 16, characterized in that The phase capability includes: the inability to maintain phase continuity after the transmission power changes or the transmission power gear changes; During the time period between the start time and the end time of the first resource, the transmission power or the transmission power level of the terminal device remains unchanged.

19. The method according to any one of claims 12 to 18, characterized in that The phase capability includes: being able to maintain phase continuity after receiving a signal.

20. The method according to any one of claims 12 to 18, characterized in that The phase capability includes: the inability to maintain phase continuity after receiving the signal; During the period between the start time and the end time of the first resource, the terminal device can only send signals.

21. The method according to any one of claims 12 to 20, characterized in that Before receiving the first signal on the first resource, the method further includes: Send second information, where the second information is used to indicate the first resource.

22. The method according to any one of claims 12 to 21, characterized in that The first signal is used for sensing.

23. A communication device, characterized in that: include: A module for executing the method according to any one of claims 1 to 11, or a module for executing the method according to any one of claims 12 to 22.

24. A communication device, characterized in that: include: A processor, configured to execute a computer program stored in a memory, so that the apparatus performs the method according to any one of claims 1 to 11, or so that the apparatus performs the method according to any one of claims 12 to 22; A communication interface is coupled to the processor and is used to input or output information.

25. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the processor executes the method according to any one of claims 1 to 11, or the processor executes the method according to any one of claims 12 to 22.

26. A computer program product, characterized in that When the computer program product is executed by a processor, the method according to any one of claims 1 to 11 is executed, or the method according to any one of claims 12 to 22 is executed.

27. A communication system, characterized in that: include: A communication device for executing the method according to any one of claims 1 to 11, and a communication device for executing the method according to any one of claims 12 to 22.

Images