Communication method and related apparatus

Abstract

The present application relates to the technical field of wireless communications, and in particular to a communication method and a related apparatus. The method comprises: sending first information for indicating a resource set, wherein the resource set is used for transmitting an uplink sensing signal and comprises M time-frequency resources, a time-frequency resource i among the M time-frequency resources comprises N1 discontinuous sub-time units within a time unit and N2 discontinuous sub-frequency domain units within a frequency domain unit, M, N1, and N2 are positive integers greater than or equal to 2, and i is an integer greater than or equal to 0; and sending second information, wherein the second information is used for indicating N3 time-frequency resources corresponding to N3 first time units, the described M time-frequency resources include these N3 time-frequency resources, and N3 is a positive integer greater than or equal to 2. The method provided by the present application can solve the problems of high overhead and poor configuration flexibility present in existing SRS resource configuration schemes.

Description

Communication method and related apparatus

[0001] The present application claims priority to the Chinese patent application No. 202411124767.5, filed on August 15, 2024, and entitled "A communication method and related apparatus", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of wireless communication, in particular to a communication method and related apparatus. BACKGROUND

[0003] Communication and sensing integration is a key technology in the next generation of wireless communication networks, aiming to integrate wireless communication and sensing functions in the same system, and use various propagation characteristics of sensing signals to achieve sensing functions such as positioning, detection, imaging and identification of targets, to obtain information about the surrounding physical environment, tap the communication capabilities, and enhance user experience. With the continuous evolution of communication technology, sounding reference signals (SRS) can also be used as sensing signals in communication and sensing integration technology. For example, a network device can estimate the location information of a terminal device according to the SRS sent by the terminal device.

[0004] In the current SRS resource configuration scheme, the time domain resources of SRS usually include multiple consecutive time domain symbols, and the frequency domain resources of SRS are multiple uniformly spaced subcarriers (such as two-part comb, four-part comb, etc.). In the scenario where SRS is used as a sensing signal, the existing SRS resource configuration scheme has the problems of large resource overhead and poor configuration flexibility, and has poor applicability. SUMMARY

[0005] In order to solve the above problems, the present application provides a communication method and related apparatus. The communication method is used to configure the time-frequency resources of the uplink sensing signal, which can solve the problems of large resource overhead and poor configuration flexibility existing in the existing scheme.

[0006] The present application is introduced from multiple aspects below, and it is easy to understand that the implementation manners and beneficial effects of the multiple aspects can be mutually referred.

[0007] In a first aspect, a communication method is provided. The method is applicable to a network device or a component (e.g., a modem chip, also referred to as a baseband chip, or a system on chip (SoC) chip or a system in package (SIP) chip containing a modem core, etc.) in the network device. The method comprises: sending first information. Here, the first information is used to indicate a resource set, and the resource set is used to transmit an uplink sensing signal. The resource set includes M time-frequency resources. A time-frequency resource i in the M time-frequency resources includes N1 sub-time units that are discontinuous within a time unit and N2 sub-frequency domain units that are discontinuous within a frequency domain unit. Here, M, N1 and N2 are positive integers greater than or equal to 2, and i is an integer greater than or equal to 0 and less than M. Sending second information. Here, the second information is used to indicate N3 time-frequency resources corresponding to N3 first time units, and the M time-frequency resources include the N3 time-frequency resources. N3 is a positive integer greater than or equal to 2.

[0008] In the above implementation, the network device indicates a resource set used to transmit an uplink sensing signal through the first information, and each time-frequency resource in the resource set includes multiple sparse sub-time units and multiple sparse sub-frequency domain units. The network device also indicates a time-frequency resource used to transmit an uplink sensing signal in any first time unit through the second indication information. On the one hand, the sub-time units in any time-frequency resource i in the resource set are sparse, which has less overhead compared to the continuous configuration of sub-time units in the existing SRS resource configuration scheme. On the other hand, the sub-frequency domain units in any time-frequency resource i are sparse, and the network device can also specify a time-frequency resource used to transmit an uplink sensing signal in any time unit through the second information, which has stronger flexibility in resource configuration compared to the fixed configuration of sub-frequency domain unit intervals such as two-part comb and four-part comb in the existing SRS resource configuration scheme. Therefore, configuring the time-frequency resources of SRS using the communication method provided in the present application can effectively solve the problems of large resource overhead and poor configuration flexibility in the existing SRS resource configuration scheme.

[0009] In combination with the first aspect, in a possible implementation, each time-frequency resource in the M time-frequency resources corresponds to the same number of resource elements (REs).

[0010] In the above implementation, designing each time-frequency resource to correspond to the same number of resource elements can ensure that each time-frequency resource has the same coverage capability for sensing, thereby avoiding the influence of different coverage capabilities of different time-frequency resources for sensing on the sensing performance.

[0011] In a possible implementation of the first aspect, intervals of any two adjacent sub-time units in the N1 sub-time units are the same. It can also be understood that, within any one time unit corresponding to the time-frequency resource i, the N1 sub-time units are periodically distributed. In this case, the first information can include first indication information of the time-frequency resource i. The first indication information can be used to indicate a first sub-time unit in the N1 sub-time units. The first indication information can also be used to indicate an interval of the N1 sub-time units.

[0012] In the above implementation, in the case where the N1 sub-time units are periodically distributed, the time domain resource of the time-frequency resource i can be indirectly indicated by indicating the first sub-time unit in the N1 sub-time units and the interval of the sub-time units, so as to reduce the overhead of the first information.

[0013] In a possible implementation of the first aspect, the first information further includes second indication information of the time-frequency resource i. The second indication information can be used to indicate the number N1 of sub-time units.

[0014] In a possible implementation of the first aspect, intervals of any two adjacent sub-time units in the N1 sub-time units are different. It can also be understood that, within any one time unit corresponding to the time-frequency resource i, the N1 sub-time units are non-periodically distributed. The first information can include first bit map of the time-frequency resource i, and the first bit map corresponds to all sub-time units in the time unit one by one. A value of a j1th bit in the first bit map can be used to indicate whether the time-frequency resource i includes a j1th sub-time unit in the time unit. Here, j1 is a positive integer. Alternatively, a value of any bit in the first bit map can be used to indicate whether the sub-time unit corresponding to the bit in the time unit is occupied by the time domain resource i.

[0015] In the above implementation, in the case where the N1 sub-time units are non-periodically distributed, the time-frequency resource i can be indicated by the first bit map corresponding to all sub-time units in the time unit, which is simple and easy to implement, and can ensure accurate control and flexible configuration of the time-frequency resource i.

[0016] In a possible implementation of the first aspect, intervals of any two adjacent sub-frequency domain units in the N2 sub-frequency domain units are the same. It can also be understood that, within any one frequency domain unit corresponding to the time-frequency resource i, the non-continuous N2 sub-frequency domain units are periodically distributed. In this case, the first information can include third indication information of the time-frequency resource i. The third indication information can be used to indicate a first sub-frequency domain unit in the N2 sub-frequency domain units. In other words, the third indication information can be used to indicate a position of the first sub-frequency domain unit in the N2 sub-frequency domain units in the frequency domain unit. The third indication information can also be used to indicate a sub-frequency domain unit interval corresponding to the N2 sub-frequency domain units. In other words, the third indication information can also be used to indicate a distribution period corresponding to the N2 sub-frequency domain units.

[0017] In the above implementation, in the case of periodic distribution of the N2 sub-frequency domain units, the frequency domain resource corresponding to the time-frequency resource i is indirectly indicated by indicating the first sub-frequency domain unit in the N2 sub-frequency domain units and the sub-frequency domain unit interval, which can also reduce the overhead of the first information.

[0018] In a possible implementation of the first aspect, intervals of any two adjacent sub-frequency domain units in the N2 sub-frequency domain units are different. It can also be understood that, within any one frequency domain unit corresponding to the time-frequency resource i, the non-continuous N2 sub-frequency domain units are non-periodically distributed. The first information can include a second bit map of the time-frequency resource i, and the second bit map corresponds to all sub-frequency domain units in the frequency domain unit one by one. A value of a j2th bit in the second bit map can be used to indicate whether the time-frequency resource i includes a j2th sub-frequency domain unit in the frequency domain unit. Here, j2 is a positive integer. In other words, a value of any bit in the first bit map can be used to indicate whether the sub-frequency domain unit corresponding to the bit in the frequency domain unit is occupied by the time domain resource i.

[0019] In the above implementation, in the case of non-periodic distribution of the N2 sub-frequency domain units, the time-frequency resource i can be indicated by the second bit map corresponding to all sub-frequency domain units in the frequency domain unit, which can also ensure accurate control and flexible configuration of the time-frequency resource i.

[0020] With reference to the first aspect, in a possible implementation manner, the first information can further include fourth indication information of all resource elements corresponding to the time-frequency resource i. The fourth indication information of any one resource element p in the all resource elements can include a first index of a sub-time unit corresponding to the resource element p in a time unit, and a second index of a sub-frequency domain unit corresponding to the resource element p in a frequency domain unit. Here, the first index can be used to indicate the position of the sub-time unit corresponding to the resource element p in the time unit in which the sub-time unit is located. The second index can be used to indicate the position of the sub-frequency domain unit corresponding to the resource element p in the frequency domain unit in which the sub-frequency domain unit is located.

[0021] With reference to the first aspect, in a possible implementation manner, the second information can include N3 characters corresponding to the N3 first time units. The kth character in the N3 characters is used to indicate the time-frequency resource corresponding to the kth first time unit in the N3 first time units, and k is a positive integer.

[0022] With reference to the first aspect, in a possible implementation manner, the method can further include: receiving an uplink sensing signal on the N3 time-frequency resources in the N3 first time units, and determining a sensing result based on the received uplink sensing signal.

[0023] With reference to the first aspect, in a possible implementation manner, the time unit is a time slot (slot), the sub-time unit is an orthogonal frequency division multiplexing (OFDM) symbol, which can also be referred to as a symbol for short. The frequency domain unit is a resource block (RB), and the sub-frequency domain unit is a subcarrier.

[0024] With reference to the first aspect, in a possible implementation manner, the uplink sensing signal is an SRS.

[0025] In a second aspect, the present application provides a communication method. The method is applicable to a terminal device or a component (such as a modem chip, a SoC chip containing a modem core, or a SIP chip) in the terminal device. The method comprises: receiving first information. Here, the first information is used to indicate a resource set, and the resource set is used to transmit an uplink sensing signal. The resource set includes M time-frequency resources. A time-frequency resource i in the M time-frequency resources includes N1 sub-time units that are discontinuous within a time unit and N2 sub-frequency domain units that are discontinuous within a frequency domain unit. Here, M, N1 and N2 are positive integers greater than or equal to 2, and i is an integer greater than or equal to 0 and less than M. Second information is received. Here, the second information is used to indicate N3 time-frequency resources corresponding to N3 first time units, and the M time-frequency resources include the N3 time-frequency resources. N3 is a positive integer greater than or equal to 2. In other words, the second information is used to indicate the N3 time-frequency resources corresponding to the N3 first time units from the M time-frequency resources.

[0026] In the above implementation, the terminal device can determine a resource set for transmitting an uplink sensing signal through the first information, and each time-frequency resource in the resource set includes multiple sparse sub-time units and multiple sparse sub-frequency domain units. The terminal device also determines a time-frequency resource used to transmit an uplink sensing signal at a certain first time unit through the second indication information. On the one hand, the sub-time units in any time-frequency resource i in the resource set are sparse, which has less overhead compared to the continuous configuration of sub-time units in the existing SRS resource configuration scheme. On the other hand, the sub-frequency domain units in any time-frequency resource i are sparse, and the time-frequency resource used to transmit an uplink sensing signal at any time unit can be determined through the second information, which has stronger resource configuration flexibility compared to the fixed configuration of sub-frequency domain unit intervals such as two-part comb and four-part comb in the existing SRS resource configuration scheme. Therefore, the time-frequency resources of the SRS configured by the communication method provided by the present application can effectively solve the problems of large resource overhead and poor configuration flexibility in the existing SRS resource configuration scheme.

[0027] In combination with the second aspect, in a possible implementation, each time-frequency resource in the M time-frequency resources corresponds to the same number of resource elements. In other words, each time-frequency resource includes an equal number of resource elements. It should be understood that, in the embodiments of the present application, one resource element corresponds to one sub-time unit in the time domain and one sub-frequency domain unit in the frequency domain.

[0028] In a possible implementation of the second aspect, the interval of any two adjacent sub-time units in the N1 sub-time units is the same. It can also be understood that, within any one time unit corresponding to the time-frequency resource i, the non-continuous N1 sub-time units are periodically distributed. In this case, the first information can include first indication information of the time-frequency resource i. The first indication information can be used to indicate the first sub-time unit in the N1 sub-time units. In other words, the first indication information can be used to indicate the position of the first sub-time unit in the N1 sub-time units in the time unit in which the N1 sub-time units are located. The first indication information can also be used to indicate the interval of the sub-time units corresponding to the N1 sub-time units. In other words, the first indication information can also be used to indicate the distribution period of the N1 sub-time units.

[0029] In a possible implementation of the second aspect, the first information further includes second indication information of the time-frequency resource i. The second indication information can be used to indicate the number N1 of sub-time units.

[0030] In a possible implementation of the second aspect, the interval of any two adjacent sub-time units in the N1 sub-time units is different. It can also be understood that, within any one time unit corresponding to the time-frequency resource i, the non-continuous N1 sub-time units are non-periodically distributed. The first information can include a first bit map of the time-frequency resource i, and the first bit map corresponds to all sub-time units in the time unit one by one. The value of the j1th bit in the first bit map can be used to indicate whether the time-frequency resource i includes the j1th sub-time unit in the time unit. Here, j1 is a positive integer. In other words, the value of any bit in the first bit map can be used to indicate whether the sub-time unit corresponding to the bit in the time unit is occupied by the time domain resource i.

[0031] In a possible implementation of the second aspect, the interval of any two adjacent sub-frequency domain units in the N2 sub-frequency domain units is the same. It can also be understood that, within any one frequency domain unit corresponding to the time-frequency resource i, the non-continuous N2 sub-frequency domain units are periodically distributed. In this case, the first information can include third indication information of the time-frequency resource i. The third indication information can be used to indicate the first sub-frequency domain unit in the N2 sub-frequency domain units. In other words, the third indication information can be used to indicate the position of the first sub-frequency domain unit in the N2 sub-frequency domain units in the frequency domain unit in which the N2 sub-frequency domain units are located. The third indication information can also be used to indicate the interval of the sub-frequency domain units corresponding to the N2 sub-frequency domain units. In other words, the third indication information can also be used to indicate the distribution period of the N2 sub-frequency domain units.

[0032] In a possible implementation manner of the second aspect, intervals of any two adjacent sub-frequency domain units in the N2 sub-frequency domain units are different. It can also be understood that, within any one frequency domain unit corresponding to the time-frequency resource i, the non-continuous N2 sub-frequency domain units are non-periodically distributed. The first information can include a second bit map of the time-frequency resource i, and the second bit map corresponds to all sub-frequency domain units in the frequency domain unit one by one. A value of a j2th bit in the second bit map can be used to indicate whether the time-frequency resource i includes a j2th sub-frequency domain unit in the frequency domain unit. Here, j2 is a positive integer. Alternatively, a value of any bit in the first bit map can be used to indicate whether the bit corresponds to a sub-frequency domain unit occupied by the time domain resource i in the frequency domain unit.

[0033] In a possible implementation manner of the second aspect, the first information can further include fourth indication information of all resource elements corresponding to the time-frequency resource i. The fourth indication information of any one resource element p in the all resource elements can include a first index of a sub-time unit corresponding to the resource element p in a time unit, and a second index of a sub-frequency domain unit corresponding to the resource element p in a frequency domain unit. Here, the first index can be used to indicate a position of the sub-time unit corresponding to the resource element p in the time unit in which the sub-time unit is located. The second index can be used to indicate a position of the sub-frequency domain unit corresponding to the resource element p in the frequency domain unit in which the sub-frequency domain unit is located.

[0034] In a possible implementation manner of the second aspect, the second information can include N3 characters corresponding to the N3 first time units one by one. A kth character in the N3 characters is used to indicate a time-frequency resource corresponding to a kth first time unit in the N3 first time units, and k is a positive integer.

[0035] In a possible implementation manner of the second aspect, the method can further include: transmitting the uplink sensing signal in the N3 first time units on the N3 time-frequency resources.

[0036] In a possible implementation manner of the second aspect, the time unit is a time slot, and the sub-time unit is a symbol. The frequency domain unit is a resource block, and the sub-frequency domain unit is a resource element.

[0037] In a possible implementation manner of the second aspect, the uplink sensing signal is an SRS.

[0038] In a third aspect, the present application provides a communication apparatus, which includes various modules or units for performing the method provided in any one of the first aspect to the second aspect or any possible implementation manner of any one of the aspects.

[0039] In a fourth aspect, the present application provides a computer program product comprising instructions which, when executed on a computer, cause the computer to carry out the communication method of any one of the first aspect to the second aspect or any possible implementation thereof.

[0040] In a fifth aspect, the present application provides a computer-readable storage medium having stored thereon a computer program which, when executed by a computer, carries out the communication method of any one of the first aspect to the second aspect or any possible implementation thereof.

[0041] In a sixth aspect, the present application provides a communication apparatus comprising at least one processor and a memory. The memory is configured to store a computer program. The processor is configured to execute the computer program stored in the memory to cause the communication apparatus to carry out the communication method of any one of the first aspect to the second aspect or any possible implementation thereof.

[0042] Optionally, the memory can be integrated with the processor, or the memory can be arranged separately from the processor.

[0043] It should be understood that the relevant data interaction process, for example, sending information, can be a process of outputting information from the processor, and receiving information can be a process of receiving information by the processor. Specifically, the data output by the processor can be output to the transmitter, and the input data received by the processor can come from the receiver. The transmitter and the receiver can be collectively referred to as a transceiver.

[0044] In a seventh aspect, the present application provides a chip comprising at least a processor. The processor is configured to execute computer execution instructions to cause the apparatus installed with the chip to carry out the communication method of any one of the first aspect to the second aspect or any possible implementation thereof.

[0045] In combination with the seventh aspect, in a possible implementation, the chip can further comprise an interface circuit. The interface circuit is configured to receive the computer execution instructions and transmit the computer execution instructions to the processor.

[0046] In an eighth aspect, the present application provides a communication system. The communication system can comprise the terminal device and the network device described above.

[0047] It should be understood that the communication method provided by any one of the first aspect to the second aspect or any possible implementation thereof is applicable to the communication system. BRIEF DESCRIPTION OF DRAWINGS

[0048] FIG. 1 is a structural schematic diagram of a communication system provided by the present application;

[0049] FIG. 2 is a schematic diagram of another communication system according to embodiments of the present application;

[0050] FIG. 3 is a schematic diagram of a communication method according to embodiments of the present application;

[0051] FIG. 4 is a schematic diagram of a time-frequency resource i according to embodiments of the present application;

[0052] FIG. 5 is another schematic diagram of a time-frequency resource i according to embodiments of the present application;

[0053] FIG. 6 is another schematic diagram of a communication method according to embodiments of the present application;

[0054] FIG. 7 is a schematic diagram of a communication apparatus according to embodiments of the present application;

[0055] FIG. 8 is a schematic diagram of another communication apparatus according to embodiments of the present application. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings provided by the embodiments of the present application.

[0057] The technical solutions provided by the embodiments of the present application can be applied to various communication systems, for example, a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD), a 5th generation (5G) system or a new radio (NR), and in addition, can be applied to subsequent evolution systems, such as a 6th generation (6G) mobile communication system, and the present application is not limited in this regard.

[0058] In addition, the technical solutions provided in the present application can also be applied to long term evolution-machine (LTE-M), machine type communication (MTC), device-to-device (D2D) network, machine to machine (M2M) network, IoT network, non-terrestrial network (NTN) or other network. The IoT network may, for example, include a vehicle network. In the vehicle network system, the communication modes are collectively referred to as vehicle to X (V2X) system, for example, the V2X may include vehicle to vehicle (V2V) communication, vehicle to infrastructure (V2I) communication, vehicle to pedestrian (V2P) communication or vehicle to network (V2N) communication, etc.

[0059] Referring to FIG. 1, FIG. 1 is a structural schematic diagram of a communication system provided in the present application. It should be understood that FIG. 1 shows a ground communication system to which the technical solutions provided in the present application are applicable. As shown in FIG. 1, the communication system 10 can include a radio access network (RAN) 100 and a core network (CN) 130. The RAN 100 includes at least one RAN node (e.g., 110a and 110b in FIG. 1) and at least one terminal (e.g., 120a-120j in FIG. 1). Other RAN nodes, such as wireless relay devices and / or wireless backhaul devices (not shown in FIG. 1), etc., can also be included in the RAN 100. The terminal is connected to the RAN node in a wireless manner. The RAN node is connected to the core network 130 in a wireless or wired manner. The core network device in the core network 130 and the RAN node in the RAN 100 can be different physical devices respectively, or can be the same physical device integrated with the logical functions of the core network and the logical functions of the radio access network.

[0060] The RAN 100 can be a 3rd generation partnership project (3GPP) -related cellular system, e.g., a 4G, 5G mobile communication system, or a future-oriented evolved system. The RAN 100 can also be an open radio access network (O-RAN or ORAN), a cloud radio access network (CRAN), or a wireless fidelity (WiFi) system. The RAN 100 can also be a communication system that combines two or more of the above systems.

[0061] In the communication system shown in FIG. 1, the RAN nodes, which can also be referred to as access network devices, network devices, RAN entities, or access nodes, etc., form part of the communication system to help terminals to access wirelessly. The RAN nodes in the communication system 10 can be nodes of the same type or nodes of different types. In some scenarios, the roles of the RAN nodes and the terminals are relative, for example, the network element 120i in FIG. 1 can be a helicopter or a drone, which can be configured as a mobile base station, and for those terminals 120j that access the RAN 100 through the network element 120i, the network element 120i is a base station. But for the base station 110a, the network element 120i is a terminal. The RAN nodes and the terminals are sometimes both referred to as communication apparatuses, for example, the network elements 110a and 110b in FIG. 1 can be understood as communication apparatuses with base station functions, and the network elements 120a-120j can be understood as communication apparatuses with terminal functions.

[0062] In a possible scenario, the RAN node can be a base station, an evolved Node B (e-NodeB or eNB), an access point (AP), a transmission reception point (TRP), a next generation NodeB (gNB), a base station in a future mobile communication system, or an access node in a WiFi system, etc. The RAN node can be a macro base station (such as 110a in FIG. 1), a micro base station or an indoor station (such as 110b in FIG. 1), a relay node or a donor node, or a wireless controller in a CRAN scenario. Optionally, the RAN node can also be a server, a wearable device, a vehicle or a vehicle-mounted device, etc. For example, the access network device in the V2X technology can be a road side unit (RSU). All or part of the functions of the RAN node in the present application can also be implemented by software functions running on hardware, or by virtualized functions instantiated on a platform (such as a cloud platform). The RAN node can also be provided with a communication module, circuit or chip for performing corresponding communication functions, and program instructions for performing corresponding communication functions. The RAN node in the present application can also be a logical node, a logical module or software that can implement all or part of the functions of the RAN node.

[0063] In another possible scenario, multiple RAN nodes cooperate to assist a terminal to implement wireless access, and different RAN nodes respectively implement part of the functions of a base station. For example, the RAN node can be a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and the DU can be separately arranged, or can be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, such as a remote radio unit (RRU), an active antenna processing unit (AAU), or a remote radio head (RRH).

[0064] The CU (or CU-CP and CU-UP), DU or RU can also have different names in different systems, but those skilled in the art can understand their meanings. For example, in an ORAN system, the CU can also be referred to as an O-CU (open CU), the DU can also be referred to as an O-DU, the CU-CP can also be referred to as an O-CU-CP, the CU-UP can also be referred to as an O-CU-UP, and the RU can also be referred to as an O-RU. For the convenience of description, the CU, CU-CP, CU-UP, DU and RU are taken as examples for description in this application. Any one of the CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0065] In the communication system shown in FIG. 1, a terminal (i.e., terminal) can be a device or module with corresponding communication functions for accessing the above-mentioned communication system. The terminal can also be referred to as a terminal device, a user equipment (UE), a mobile station, a mobile terminal, etc. The terminal can be widely used in various scenarios, such as device-to-device (D2D), V2X, MTC, IoT, virtual reality, augmented reality, industrial control, autonomous driving, remote medical treatment, smart power grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, a drone, a helicopter, an airplane, a ship, a robot, a mechanical arm, a smart home device, a wireless communication function transport vehicle, a communication module, etc. Embodiments of the present application do not limit the device form of the terminal. The terminal is usually provided with a communication module, circuit or chip for executing corresponding communication functions. The terminal is also configured with program instructions for executing corresponding communication functions.

[0066] Please refer to FIG. 2, which is a schematic diagram of another communication system provided in the present application. It should be understood that FIG. 2 shows a non-terrestrial communication system, such as a satellite communication system, to which the technical solutions provided in the present application are applicable. As shown in FIG. 2, the communication system 20 can include at least one terminal device 210 and at least one network device 220. Exemplarily, the terminal device 210 can include a terminal device 210a and / or a terminal device 210b, and the network device 220 can include a satellite 220a and / or a satellite 220b. The network device 220 can communicate with the terminal device 210 directly or through a relay station, such as a relay satellite. It should be understood that the network device 220 can include one or more satellites. The satellite can provide communication services, navigation services, positioning services, etc. to the terminal device through multiple beams. The satellite covers a service area through multiple beams, and different beams can communicate through one or more of time division, frequency division, and space division. The satellite can establish an inter-satellite link with another satellite, and the satellite can process and forward data according to a protocol. The communication system 20 can further include a connection device 230, such as a gateway, wherein the network device 220 can communicate with the connection device 230, and the connection device 230 can communicate with a core network 240. It should be understood that FIG. 2 is only an example, and in actual scenarios, the communication system 20 can further include other types of network devices and / or other types of terminal devices, or the communication system 20 can further include more or fewer satellites, more or fewer terminal devices, or the communication system 20 can further include other non-terrestrial devices (such as unmanned aerial vehicles, etc.).

[0067] In the embodiments of the present application, the satellite communication system can include a transparent satellite architecture and a non-transparent satellite architecture. Transparent is also called as pipe-through forwarding transmission, that is, the signal only performs frequency conversion, signal amplification, etc. on the satellite. Non-transparent can be called as regenerative (onboard access / processing) transmission, that is, the satellite has part or all of the base station functions. The satellite involved in the embodiments of the present application refers to a man-made satellite. The satellite can be a satellite base station, can include an orbit receiver or a repeater for relaying information, or can be a network device carried on the satellite; the satellite can be a low earth orbit (LEO) satellite, a middle earth orbit (MEO) satellite, a highly elliptical orbit (HEO) satellite, a geostationary earth orbit (GEO) satellite, or a non-geostationary orbit (NGEO) satellite, etc. The present application does not make any limitation in this regard. It should be understood that the solutions in the embodiments of the present application can also be applied to other communication systems, and the corresponding names can also be replaced by the names of the corresponding functions in other communication systems.

[0068] In the communication system shown in FIG. 2, the network device 220 can be a device accessing a network using 3GPP technology, including but not limited to: a base station, a Node B (NodeB or NB), an evolved Node B, a gNB or TRP in a 5G (such as NR) system, a next-generation base station in a 6G mobile communication system, a base station in a future mobile communication system, a base station in a subsequent evolution of 3GPP, etc., and can also be a module or unit that completes part of the functions of a base station, for example, can be a CU, and can also be a DU. The network device can also be: a macro base station, a micro base station, a pico base station, a small station, a relay station, an indoor station, a balloon station, a satellite station, a wireless relay node, a wireless backhaul node, etc. The network device 220 can also be a device accessing a network using non-3GPP technology, for example, including but not limited to: an AP in a Wi-Fi system, a wireless relay node, a wireless backhaul node, etc. The network device can also be a server, a wearable device, or a vehicle-mounted device, etc. The network device can also be a network device in a CRAN scenario. The network device can also be a network device in an NTN, for example, can be a relay satellite, or a satellite with base station functions, etc. The network device can contain one or more co-sited or non-co-sited TRPs.

[0069] The terminal device 210 in the communication system shown in FIG. 2 can also be referred to as a UE, an access terminal, a vehicle-mounted terminal, an industrial control terminal, a UE unit, a UE station, a mobile station, a mobile station, a remote station, a remote terminal device, a mobile device, a UE terminal device, a user terminal, a terminal, a wireless communication device, a UE agent, or a UE apparatus, etc. It is a device with wireless transceiving function, which can be fixed or mobile. The terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; can also be deployed on the water surface (such as ships, etc.); can also be deployed in the air (such as airplanes, balloons and satellites, etc.). The terminal device can include but is not limited to: a mobile phone, a tablet computer, a computer with wireless transceiving function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a mixed reality (MR) terminal device, an extended reality (XR) terminal device, a wireless terminal in industrial control, a haptic terminal device, a vehicle-mounted terminal device, a wireless terminal in unmanned driving, a wireless terminal in remote medical treatment, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, a wearable terminal device, etc. The terminal device can support communication with multiple network devices of different technologies, for example, the terminal device can support communication with a base station supporting an LTE network, can also support communication with a base station supporting a 5G network, and can also support dual connectivity with a base station of an LTE network and a base station of a 5G network.

[0070] The application also provides a communication system obtained by combining the ground communication system shown in FIG. 1 and the non-ground communication system shown in FIG. 2, which is also applicable to the scheme provided by the application. For specific structures, please refer to FIG. 1 and FIG. 2 described above, and the application does not make specific limitations here.

[0071] It should be understood that in combination with the communication system 10 shown in FIG. 1, the scheme provided by the embodiments of the application can be specifically realized by the RAN node and the terminal in the communication system 10. In combination with the communication system shown in FIG. 2, the scheme provided by the application can be specifically realized by the terminal device 210 and the network device 220 in the communication system 20. For the convenience of understanding, in the embodiments of the application, the network device and the terminal device will be taken as examples for description.

[0072] In the current SRS resource configuration scheme, the time domain resource of the SRS usually includes multiple continuous time domain symbols, and the frequency domain resource of the SRS adopts a configuration mode of fixed-interval subcarriers (such as two-part comb, four-part comb, etc.). In the scenario of using the SRS as a sensing signal, the existing SRS resource configuration scheme has the problems of large resource overhead and poor configuration flexibility, and is not applicable.

[0073] Therefore, the technical problem to be solved by the present application is to provide a new resource configuration scheme to overcome the problems of large resource overhead and poor configuration flexibility in the existing SRS resource configuration scheme.

[0074] Please refer to FIG. 3, which is a flowchart of a communication method provided by the present application. The communication method is applicable to the communication system shown in FIG. 1 or FIG. 2. As shown in FIG. 3, the communication method can include the following steps:

[0075] S310, the network device determines first information, the first information being used to indicate a resource set for transmitting an uplink sensing signal, the resource set including M time-frequency resources, and the time-frequency resource i in the M time-frequency resources including N1 sub-time units within a time unit and N2 sub-frequency domain units within a frequency domain unit.

[0076] In some possible implementation manners, the network device can generate the first information. The first information can be used to indicate a resource set. The resource set can be used for transmitting an uplink sensing signal between the terminal device and the network device. The resource set can include M time-frequency resources, and the M time-frequency resources are all different. The time-frequency resource i in the M time-frequency resources includes N1 sub-time units within a time unit and N2 sub-frequency domain units within a frequency domain unit. That is, the time-frequency resource i is sparse in both the time domain and the frequency domain. Here, i is a positive integer greater than or equal to 0 and less than M. The time-frequency resource i can be any one of the M time-frequency resources. For example, assuming that the M time-frequency resources include a time-frequency resource #0, a time-frequency resource #1, and a time-frequency resource #M-1. When i is 0, the time-frequency resource i can be the time-frequency resource #0. When i is M-1, the time-frequency resource i can be the time-frequency resource #M-1.

[0077] Optionally, the network device can determine the resource set capable of being used for transmitting the uplink sensing signal according to the current allocable time-frequency resource of the network device and the capability information of the terminal device, and generate the first information used to indicate the resource set.

[0078] It should be noted that in the embodiments of the present application, each of the M time-frequency resources contains N1 sub-time units that are discontinuous in the time domain and N2 sub-frequency domain units that are discontinuous in the frequency domain. The difference between the time-frequency resources is that the time domain positions of the sub-time units and / or the frequency domain positions of the sub-frequency domain units are not the same or not completely the same. The specific implementation form and indication method of each time-frequency resource are similar. In order to avoid redundancy, the implementation form and configuration process of the resource set will be described below by taking any one of the M time-frequency resources i as an example.

[0079] In addition, in the embodiments of the present application, the time-frequency resource i can correspond to one time unit or multiple time units. In the case where the time-frequency resource i corresponds to one time unit, the "time-frequency resource i includes N1 sub-time units that are discontinuous in the time unit" described above can be understood as that the time-frequency resource i includes only N1 sub-time units in one time unit. Correspondingly, the number of sub-time units included in the time-frequency resource i is N1. In the case where the time-frequency resource i corresponds to multiple time units, the "time-frequency resource i includes N1 sub-time units that are discontinuous in the time unit" described above can be understood as that the time-frequency resource i includes discontinuous N1 time units in each of the multiple time units. Correspondingly, the number of sub-time units included in the time-frequency resource i is the product of the number of time units corresponding to the time-frequency resource i and N1. For example, assuming that the time-frequency resource i corresponds to 5 time units, the time-frequency resource i includes 5*N1 sub-time units.

[0080] Similarly, any one of the time-frequency resources i can also correspond to one frequency domain unit or multiple frequency domain units. In the case where the time-frequency resource i corresponds to one frequency domain unit, the "time-frequency resource i includes N2 sub-frequency domain units that are discontinuous in the frequency domain unit" described above can be understood as that the time-frequency resource i includes only N2 sub-frequency domain units in one frequency domain unit. Correspondingly, the number of sub-frequency domain units included in the time-frequency resource i is N2. In the case where the time-frequency resource i corresponds to multiple frequency domain units, the "time-frequency resource i includes N2 sub-frequency domain units that are discontinuous in the frequency domain unit" described above can be understood as that the time-frequency resource i includes discontinuous N2 frequency domain units in each of the multiple frequency domain units. Correspondingly, the number of sub-frequency domain units included in the time-frequency resource i is the product of the number of frequency domain units corresponding to the time-frequency resource i and N2. For example, assuming that the time-frequency resource i corresponds to 3 frequency domain units, the time-frequency resource i includes 3*N2 sub-frequency domain units.

[0081] It should be further explained that in the embodiments of the present application, the number of sub-time units actually contained in each time unit is greater than N1. The non-continuous N1 sub-time units refer to specific N1 sub-time units in a time unit, and any two adjacent sub-time units in the N1 sub-time units are separated by at least one sub-time unit. Similarly, the number of sub-frequency domain units actually contained in each frequency domain unit is greater than N2. The non-continuous N2 sub-frequency domain units refer to specific N2 sub-frequency domain units in a frequency domain unit, and any two adjacent sub-frequency domain units in the N2 sub-frequency domain units are separated by at least one sub-frequency domain unit.

[0082] In a possible implementation, each of the M time-frequency resources can correspond to the same amount of resource elements. In other words, the number of resource elements occupied by each of the M time-frequency resources is the same. It should be understood that in the embodiments of the present application, one resource element corresponds to one sub-time unit in the time domain and one sub-frequency domain unit in the frequency domain. For example, the sub-time unit can be a symbol, and the sub-frequency domain unit can be a sub-carrier. In this case, one resource element is a resource corresponding to one time domain symbol and one sub-carrier.

[0083] In the above implementation, the design that each time-frequency resource corresponds to the same number of resource elements can ensure that each time-frequency resource has the same coverage capability for sensing, thereby avoiding the influence of different coverage capabilities of different time-frequency resources for sensing on the sensing performance.

[0084] In a possible implementation, the interval between any two adjacent sub-time units in the N1 sub-time units is the same. In other words, the non-continuous N1 sub-time units are periodically distributed in the time unit. In this case, the first indication information of the time-frequency resource i can be included in the first information. The first indication information can be used to indicate the first sub-time unit in the N1 sub-time units and the interval of the sub-time units corresponding to the N1 sub-time units. In other words, the first indication information can be used to indicate the position of the first sub-time unit in the N1 sub-time units in the time unit in which the N1 sub-time units are located and the period (or distribution period) corresponding to the N1 sub-time units.

[0085] Optionally, the first indication information can include two fields, a first field and a second field. The first field can be used to indicate the first sub-time unit in the N1 sub-time units, and the second field can be used to indicate the interval of the sub-time units corresponding to the N1 sub-time units.

[0086] For example, referring to FIG. 4, which is a schematic diagram of a time-frequency resource i provided by the present application. Here, it is assumed that the time unit provided by the present application is a time slot, the sub-time unit is a symbol within the time slot, the frequency domain unit is a resource block, and the sub-frequency domain unit is a subcarrier. One resource element corresponds to one symbol in the time domain and one subcarrier in the frequency domain. Furthermore, each time slot includes 14 symbols, namely symbol #0 to symbol #13, and the 14 symbols correspond to numbers 0 to 13. Each resource block corresponds to 12 subcarriers, namely subcarrier #0 to subcarrier #11, and the 12 subcarriers correspond to numbers 0 to 11.

[0087] As shown in (a) of FIG. 4, it should be understood herein that the squares filled with gray in FIG. 4 represent resource elements occupied by the time-frequency resource i, and the squares not filled represent resource elements not occupied by the time-frequency resource i. In the case that the interval of any two adjacent sub-time units is the same, it is assumed that the time-frequency resource i corresponds to time slot 1 in the time domain and specifically includes symbol #2, symbol #6, and symbol #10 within time slot 1. Correspondingly, the first indication information of the time-frequency resource i can specifically be [2, 3]. The value of the first field is 2, and the value of the second field is 3, to indicate that the interval of the non-continuous N1 sub-time units included by the time-frequency resource i corresponds to 3, and the first sub-time unit is symbol #2 (namely the third symbol in time slot 1). Alternatively, as shown in (b) of FIG. 4, it is assumed that the time-frequency resource i specifically includes symbol #1, symbol #6, and symbol #11 within time slot 1. Correspondingly, the first indication information of the time-frequency resource i can specifically be [1, 4]. The value of the first field is 1, and the value of the second field is 4, to indicate that the interval of the non-continuous N1 sub-time units included by the time-frequency resource i corresponds to 4, and the first sub-time unit is symbol #1 (namely the second symbol in time slot 1).

[0088] In addition, it should be understood in combination with the above description that, in the case that the time-frequency resource i corresponds to one time unit, the non-continuous N1 sub-time units within the one time unit are periodically distributed. The above first indication information indicates the first sub-time unit of the N1 sub-time units corresponding to the one time unit and the interval of the N1 sub-time units. In the case that the time-frequency resource i corresponds to multiple time units, non-continuous N1 sub-time units are periodically distributed in each of the multiple time units, and the N1 sub-time units of each time unit correspond to the same time domain position. The above first indication information uniformly indicates the first sub-time unit of the N1 sub-time units corresponding to each time unit and the interval of the N1 sub-time units.

[0089] In the above implementation, in the case that the N1 sub-time units are periodically distributed, the time domain resource of the time-frequency resource i can be indirectly indicated by indicating the first sub-time unit and the interval of the sub-time units in the N1 sub-time units, so as to reduce the overhead of the first information.

[0090] Optionally, in the case that the interval of any two adjacent sub-time units in the N1 sub-time units is the same, the first information can further include second indication information of the time-frequency resource i, and the second indication information can be used to indicate the number N1 of the sub-time units.

[0091] In combination with the example shown in FIG. 4, in the case shown in (a) of FIG. 4, the first indication information of the time-frequency resource i can be specifically [2, 3, 3], so as to indicate that the value of N1 is 3. Similarly, in the case shown in (b) of FIG. 4, the first indication information of the time-frequency resource i can be specifically [1, 4, 3], so as to indicate that the value of N1 is 3. It can also be understood that, in the case shown in (a) or (b) of FIG. 4, the first indication information is also used to indicate that any one time unit corresponding to the time-frequency resource i can include 3 non-continuous sub-time units.

[0092] In another possible implementation, the interval of any two adjacent sub-time units in the N1 sub-time units is different. In other words, the non-continuous N1 sub-time units are non-periodically distributed in the time unit. In this case, the first information can include first bit map of the time-frequency resource i. The first bit map corresponds to all the sub-time units in the time unit one by one, and the first bit map contains the same number of bits as the total number of the sub-time units contained in the time unit. The value of the j1th bit in the first bit map can be used to indicate whether the time-frequency resource i includes the j1th sub-time unit in the time unit. Wherein, j1 is a positive integer, and the value of j1 is greater than or equal to 1 and less than or equal to the total number of the sub-time units contained in the time unit.

[0093] For example, referring to FIG. 5, which is another schematic diagram of time-frequency resource i provided in the present application. Similar to FIG. 4, it is assumed that the time unit provided in the present application is a time slot, the sub-time unit is a symbol within the time slot, the frequency domain unit is a resource block, and the sub-frequency domain unit is a subcarrier. One resource element corresponds to one symbol in the time domain and one subcarrier in the frequency domain. Moreover, each time slot includes 14 symbols, and each resource block corresponds to 12 subcarriers. As shown in FIG. 5, in the case where the interval of any two adjacent sub-time units is not the same, it is assumed that time-frequency resource i corresponds to time slot 1 in the time domain and specifically includes symbol #2, symbol #4, and symbol #8 within time slot 1. In this case, as shown in FIG. 5, the first bit map can be 00101000100000. It is assumed here that the bit with a value of 1 in the first bit map is used to indicate that the sub-time unit corresponding thereto is occupied by time-frequency resource i, and the bit with a value of 0 is used to indicate that the sub-time unit corresponding thereto is not occupied by time-frequency resource i. There are 14 bits in the first bit map, which correspond to the 14 symbols in time slot 1 in sequence. Among them, the values of the 3rd bit, the 5th bit, and the 9th bit in the first bit map are all 1, and the values of the remaining other bits are all 0. Since the 3rd bit, the 5th bit, and the 9th bit correspond to the 3rd symbol (i.e., symbol #2), the 5th bit (i.e., symbol #4), and the 9th bit (i.e., symbol #8) in time slot 1, respectively, the current value of the first bit map can be used to indicate that time-frequency resource i includes symbol #2, symbol #4, and symbol #8 within time slot 1. Of course, the bit with a value of 1 in the first bit map can also be used to indicate that the sub-time unit corresponding thereto is not occupied by time-frequency resource i, and the bit with a value of 0 can be used to indicate that the sub-time unit corresponding thereto is occupied by time-frequency resource i. In this case, in combination with time-frequency resource i shown in FIG. 5, the first bit map can also be 11010111011111.

[0094] In the above implementation, in the case where the N1 sub-time units are distributed aperiodically, the time domain resource of time-frequency resource i can be indicated by the bit map corresponding to all the sub-time units contained in the time unit, which is simple and easy to implement and can ensure accurate control and flexible configuration of time-frequency resource i.

[0095] It should be noted that the intervals of the sub-time units described above can be completely different. That is, the intervals of each pair of adjacent sub-time units in the N1 sub-time units are all different. Alternatively, the intervals of the sub-time units can be partially different. That is, the intervals of some pairs of adjacent sub-time units in the N1 sub-time units are the same, and the intervals of the other pairs of adjacent sub-time units are all different from each other. For example, assuming that N1 is 4, the first and second sub-time units in the four sub-time units correspond to a first sub-time unit interval, the second and third sub-time units correspond to a second sub-time unit interval, and the third and fourth sub-time units correspond to a third sub-time unit interval. In the case where the intervals of the sub-time units are completely different, the first, second, and third sub-time unit intervals are all different from each other. In the case where the intervals of the sub-time units are partially different, the first and second sub-time unit intervals can be the same, and the third sub-time unit interval is different from the first and second sub-time unit intervals.

[0096] In addition, in combination with the above description, it should also be understood that, in the case where the time-frequency resource i corresponds to one time unit, the N1 non-continuous sub-time units in the one time unit are non-periodically distributed. The first bit map indicates whether each of the sub-time units in the one time unit is included in the time-frequency resource i (or whether the sub-time unit is occupied by the time-frequency resource i). In the case where the time-frequency resource i corresponds to multiple time units, the N1 sub-time units are non-periodically distributed in each of the multiple time units, and the time domain positions of the N1 sub-time units in each time unit are consistent. The first bit map indicates whether each of the sub-time units in each time unit is included in the time-frequency resource i.

[0097] The above description is directed to the implementation form of the time-frequency resource i in the time domain and the indication manner of the first information for the time-frequency resource i in the time domain. The implementation form of the time-frequency resource i in the frequency domain and the indication manner of the first information for the time-frequency resource i in the frequency domain will be described below. It should be understood that the implementation form of the time-frequency resource i in the time domain and the indication manner of the first information for the time-frequency resource i in the time domain described above can be combined with the implementation form of the time-frequency resource i in the frequency domain and the indication manner of the first information for the time-frequency resource i in the frequency domain described below.

[0098] In yet another possible implementation, intervals of any two adjacent sub-frequency domain units in the N2 sub-frequency domain units are the same. In other words, the non-continuous N2 sub-frequency domain units are periodically distributed in the frequency domain unit. In this case, the third indication information of the time-frequency resource i can be included in the first information. The third indication information can be used to indicate a first sub-frequency domain unit in the N2 sub-frequency domain units, and to indicate a sub-frequency domain unit interval corresponding to the N2 sub-frequency domain units. In other words, the third indication information can be used to indicate a position of the first sub-frequency domain unit in the N2 sub-frequency domain units in the frequency domain unit and a period (or distribution period) corresponding to the N2 sub-frequency domain units.

[0099] Optionally, the third indication information can include two fields, a third field and a fourth field. The third field can be used to indicate a first sub-frequency domain unit in the N1 sub-frequency domain units, and the second field can be used to indicate a sub-frequency domain unit interval corresponding to the N1 sub-frequency domain units.

[0100] For example, continuing to refer to FIG. 4, as shown in (a) of FIG. 4, in the case where intervals of any two adjacent sub-frequency domain units are the same, assume that the time-frequency resource i corresponds to the resource block 1 in the frequency domain, and specifically includes the subcarrier #1, the subcarrier #6, and the subcarrier #11 in the resource block 1. In this case, the third indication information of the time-frequency resource i can be specifically [1, 4]. The third field has a value of 1, and the fourth field has a value of 4, to indicate that a sub-frequency domain unit interval corresponding to the non-continuous N2 sub-frequency domain units included in the time-frequency resource i is 4, and the first sub-frequency domain unit is the subcarrier #1 (the second subcarrier in the resource block 1). Alternatively, as shown in (b) of FIG. 4, assume that the time-frequency resource i specifically includes the subcarrier #1, the subcarrier #4, the subcarrier #7, and the subcarrier #10 in the resource block 1. In this case, the third indication information of the time-frequency resource i can be specifically [1, 2]. The third field has a value of 1, and the fourth field has a value of 2, to indicate that a sub-frequency domain unit interval corresponding to the non-continuous N2 sub-frequency domain units included in the time-frequency resource i is 2, and the first sub-frequency domain unit is the subcarrier #1 (the second subcarrier in the resource block 1).

[0101] In addition, it should be understood in combination with the above description that, in the case that the time-frequency resource i corresponds to one frequency domain unit, the non-continuous N2 sub-frequency domain units in the one frequency domain unit are periodically distributed. The third indication information indicates the first sub-frequency domain unit of the N2 sub-frequency domain units corresponding to the frequency domain unit and the sub-frequency domain unit interval corresponding to the N2 sub-frequency domain units. In the case that the time-frequency resource i corresponds to a plurality of frequency domain units, the non-continuous N2 sub-frequency domain units are periodically distributed in each of the plurality of frequency domain units, and the time domain positions of the N2 sub-frequency domain units of each frequency domain unit are consistent. The third indication information indicates the first sub-frequency domain unit of the N2 sub-frequency domain units corresponding to each frequency domain unit and the sub-frequency domain unit interval corresponding to the N2 sub-frequency domain units.

[0102] In the above implementation, in the case of periodic distribution of the N2 sub-frequency domain units, the frequency domain resource of the time-frequency resource i is indirectly indicated by indicating the first sub-frequency domain unit of the N2 sub-frequency domain units and the sub-frequency domain unit interval, and the overhead of the first information can be reduced.

[0103] In another possible implementation, the interval of any two adjacent sub-frequency domain units of the N2 sub-frequency domain units is different. In other words, the non-continuous N2 sub-frequency domain units are not periodically distributed in the frequency domain unit. In this case, the first information can include a second bit map of the time-frequency resource i. The second bit map corresponds to all sub-frequency domain units in the frequency domain unit one by one, and the number of bits contained in the second bit map is the same as the total number of sub-frequency domain units contained in the frequency domain unit. The value of the j2th bit in the second bit map can be used to indicate whether the time-frequency resource i includes the j2th sub-frequency domain unit in the frequency domain unit. Wherein, j2 is a positive integer, and the value of j2 is greater than or equal to 1 and less than or equal to the total number of sub-frequency domain units contained in the frequency domain unit.

[0104] For example, please continue to refer to FIG. 5. In the case that the interval of any two adjacent sub-frequency domain units is not the same, it is assumed that the time-frequency resource i corresponds to the resource block 1 in the frequency domain and specifically includes the subcarrier #1, the subcarrier #4, the subcarrier #6 and the subcarrier #11 in the resource block 1. In this case, as shown in FIG. 5, the second bit map can be 010010100001. It is assumed here that the bit with the value of 1 in the second bit map is used to indicate that the corresponding sub-frequency domain unit is occupied by the time-frequency resource i, and the bit with the value of 0 is used to indicate that the corresponding sub-frequency domain unit is not occupied by the time-frequency resource i. There are 12 bits in the second bit map, which correspond to the 12 subcarriers in the resource block 1 in turn. Among them, the values of the 2nd bit, the 5th bit, the 7th bit and the 12th bit in the second bit map are all 1, and the values of the remaining other bits are all 0. Since the 2nd bit, the 5th bit, the 7th bit and the 12th bit correspond to the 2nd subcarrier (i.e. the subcarrier #1), the 5th subcarrier (i.e. the subcarrier #4), the 7th bit (i.e. the subcarrier #6) and the 12th subcarrier (i.e. the subcarrier #11) in the resource block 1 in turn, therefore the current value of the second bit map can be used to indicate that the time-frequency resource i includes the subcarrier #2, the subcarrier #4, the subcarrier #6 and the subcarrier #11 in the resource block 1. Similarly, the bit with the value of 1 in the second bit map can be used to indicate that the corresponding sub-frequency domain unit is not occupied by the time-frequency resource i, and the bit with the value of 0 can be used to indicate that the corresponding sub-frequency domain unit is occupied by the time-frequency resource i. In this case, in combination with the time-frequency resource i shown in FIG. 5, the second bit map can also be 101101011110.

[0105] In the above implementation, in the case that the N2 sub-frequency domain units are non-periodically distributed, the frequency domain resource of the time-frequency resource i can be indicated by the second bit map corresponding to all the sub-frequency domain units contained in the frequency domain unit, and the accurate control and flexible configuration of the time-frequency resource i can also be ensured.

[0106] It should be noted that the intervals of the sub-frequency domain units described above can be completely different. That is, the intervals of each pair of adjacent sub-frequency domain units in the N2 sub-frequency domain units are all different. Alternatively, the intervals of the sub-frequency domain units described above can be partially different. That is, the intervals of a part of the adjacent sub-frequency domain units in the N2 sub-frequency domain units are the same, and the intervals of another part of the adjacent sub-frequency domain units are all different from each other. For example, assuming that the value of N2 is 4, the first sub-frequency domain unit and the second sub-frequency domain unit in the four sub-frequency domain units correspond to a first sub-frequency domain unit interval, the second sub-frequency domain unit and the third sub-frequency domain unit correspond to a second sub-frequency domain unit interval, and the third sub-frequency domain unit and the fourth sub-frequency domain unit correspond to a third sub-frequency domain unit interval. In the case where the intervals of the sub-frequency domain units are completely different, the first sub-frequency domain unit interval, the second sub-frequency domain unit interval, and the third sub-frequency domain unit interval are all different from each other. In the case where the intervals of the sub-frequency domain units are partially different, the first sub-frequency domain unit interval and the second sub-frequency domain unit interval can be the same, and the third sub-frequency domain unit interval is different from both the first sub-frequency domain unit interval and the second sub-frequency domain unit interval.

[0107] In addition, it should also be understood in combination with the above description that, in the case where the time-frequency resource i corresponds to one frequency domain unit, the non-continuous N2 sub-frequency domain units in the one frequency domain unit are non-periodically distributed. The second bit map described above indicates whether each sub-frequency domain unit in all the sub-frequency domain units in the one frequency domain unit is included in the time-frequency resource i (or whether it is occupied by the time-frequency resource i). In the case where the time-frequency resource i corresponds to a plurality of frequency domain units, N2 sub-frequency domain units are non-periodically distributed in each of the plurality of frequency domain units, and the time domain positions of the N2 sub-frequency domain units in each frequency domain unit are consistent. The second bit map described above uniformly indicates whether each sub-frequency domain unit in all the sub-frequency domain units in each frequency domain unit is included in the time-frequency resource i.

[0108] It should be noted that in actual implementation, the first indication information described above can also be referred to as time domain position information of the time-frequency resource i. The third indication information described above can also be referred to as frequency domain position information of the time-frequency resource i.

[0109] In some possible implementation manners, the first information further comprises fourth indication information of all resource elements corresponding to the time-frequency resource i. It should be understood that in the embodiments of the present application, one resource element of the time-frequency resource i corresponds to one fourth indication information. Since the implementation manners of the fourth indication information corresponding to each resource element are similar, in the following, taking any one resource element p in all resource elements corresponding to the time-frequency resource i as an example for description to avoid redundancy. The fourth indication information of the resource element p can comprise a first index of a sub-time unit corresponding to the resource element p in a time unit, and a second index of the resource element p in a frequency domain unit. The first index is used to indicate the position of the sub-time unit corresponding to the resource element p in the time unit, and the second index is used to indicate the position of the resource element p in the frequency domain unit. The first index can be understood as the time domain index of the resource element p, and the second index can be understood as the frequency domain index of the resource element.

[0110] It should be understood that in the case where the time unit is a time slot, the sub-time unit is a symbol, the frequency domain unit is a resource block, and the sub-frequency domain unit is a resource element, for the resource element p, the first index indicates the corresponding symbol as the first symbol in the time slot, and the second index indicates the first resource element in the resource block.

[0111] For example, as shown in (a) of FIG. 4, the time-frequency resource i comprises 9 resource elements. The fourth indication information corresponding to the 9 resource elements can be [2, 1], [2, 6], [2, 11], [6, 1], [6, 6], [6, 11], [10, 1], [10, 6], and [10, 11] respectively. Each fourth indication information comprises two index values, the first index value is the first index, and the second index value is the second index. For example, assuming that the fourth indication information corresponding to the resource element p is [2, 1], the first index corresponding to the resource element p is 2, and the second index is 1. The first index indicates that the sub-time unit corresponding to the resource element p is symbol #2 in time slot 1, and the second index indicates that the number in the resource block 1 is #1 (i.e., it is the second sub-carrier in the resource block 1). For another example, assuming that the fourth indication information corresponding to the resource element p is [6, 11], the first index corresponding to the resource element p is 6, and the second index is 11. The first index indicates that the sub-time unit corresponding to the resource element p is symbol #6 in time slot 1, and the second index indicates that the number in the resource block 1 is #11 (i.e., it is the twelfth sub-carrier in the resource block 1). Other cases can be analogized, which will not be listed one by one here.

[0112] S320, the network device sends the first information to the terminal device. Correspondingly, the terminal device receives the first information.

[0113] In some possible implementation manners, the network device can send the first information to the terminal device after determining the first information. Correspondingly, the terminal device can receive the first information and determine the resource set based on the first information.

[0114] Optionally, the network device can send the first information to the terminal device through a radio resource control (RRC) message, downlink control information (DCI), or the like, which is not limited in the present application.

[0115] S330, the network device determines second information, the second information is used to indicate N3 time-frequency resources corresponding to N3 first time units, and the M time-frequency resources include the N3 time-frequency resources.

[0116] In some possible implementation manners, the network device can further determine the second information. The second information can be used to indicate the N3 time-frequency resources corresponding to the N3 first time units, and the N3 time-frequency resources should be included in the M time-frequency resources. That is, the second information can be used to indicate the time-frequency resource corresponding to each of the N3 first time units from the M time-frequency resources. Here, N3 is a positive integer greater than or equal to 2. It should be understood that the time-frequency resource corresponding to each first time unit can be used to transmit the uplink sensing signal in each first time unit. It should also be understood that in the embodiments of the present application, one first time unit corresponds to only one time-frequency resource. Moreover, the N3 time-frequency resources can be all different, or some of them can be the same and some of them can be different, which is not limited in the present application.

[0117] Optionally, in actual implementation, each time-frequency resource in the resource set corresponds to a respective identifier, and the identifier corresponding to any time-frequency resource can be used to uniquely indicate the any time-frequency resource in the resource set. Here, the identifier corresponding to any time-frequency resource can be the number of the any time-frequency resource in the resource set, such as the number i of the time-frequency resource described above. Alternatively, the identifier corresponding to any time-frequency resource can also be the index of the any time-frequency resource in the resource set. Alternatively, the identifier corresponding to any time-frequency resource can also be the unique name of the any time-frequency resource in the resource set. It should be understood that the specific implementation of the identifier corresponding to the time-frequency resource is not limited in the present application.

[0118] Further, the second information can include N3 identifiers of the N3 time-frequency resources corresponding to the N3 first time units respectively, to indicate the respective time-frequency resources corresponding to the N3 first time units.

[0119] In a possible implementation, the second information can include N3 characters corresponding to the N3 first time units. The kth character in the N3 characters can be used to indicate the time-frequency resource corresponding to the kth first time unit in the N3 first time units. Here, k is a positive integer, and k is greater than or equal to 1 and less than or equal to N3. In other words, the second information can include a character string, the length of the character string is equal to N3, and the kth character in the character string can be used to indicate the time-frequency resource corresponding to the kth first time unit in the N3 first time units. Here, the value of each character can be an identifier of a time-frequency resource, or a value that can be used to indicate an identifier of a time-frequency resource, which is not limited in the present application.

[0120] For example, it is assumed that the resource set includes time-frequency resource 1 and time-frequency resource 2, and the N3 first time units are first time unit 1, first time unit 2, first time unit 3, and first time unit 4 in sequence. The second information can be a character string {1, 2, 1, 1}, which is used to indicate that the time-frequency resources used for sending the uplink sensing signal on the first time unit 1, the first time unit 2, the first time unit 3, and the first time unit 4 are time-frequency resource 1, time-frequency resource 2, time-frequency resource 1, and time-frequency resource 1 respectively.

[0121] For another example, it is assumed that the resource set includes time-frequency resource 1, time-frequency resource 2, time-frequency resource 3, and time-frequency resource 4, and the N3 first time units are first time unit 1, first time unit 2, first time unit 3, and first time unit 4 in sequence. The second information can be a character string {1, 2, 3, 4}, which is used to indicate that the time-frequency resources used for sending the uplink sensing signal on the first time unit 1, the first time unit 2, the first time unit 3, and the first time unit 4 are time-frequency resource 1, time-frequency resource 2, time-frequency resource 3, and time-frequency resource 4 respectively.

[0122] It should be noted that in the embodiments of the present application, the first time unit mainly refers to a time unit in which the uplink reference signal needs to be transmitted. The second information can also be understood as a trigger information provided by the network device to trigger the terminal device to send the uplink sensing signal on the N3 first time units.

[0123] In S340, the network device sends the second information to the terminal device. Correspondingly, the terminal device receives the second information.

[0124] In some possible implementations, after determining the second information, the network device can send the second information to the terminal device. Correspondingly, the terminal device can receive the second information, and determine the N3 time-frequency resources corresponding to the N3 first time units based on the second information.

[0125] Optionally, the network device can also send the second information to the terminal device through an RRC message, DCI, etc., which is not limited in the present application.

[0126] In addition, the network device can send the first information and the second information through the same message, or send the first information and the second information through different messages, which is not limited in the present application.

[0127] In the above embodiment, the network device indicates a resource set for transmitting the uplink sensing signal to the terminal device through the first information, and each time-frequency resource in the resource set includes a plurality of sparse sub-time units and a plurality of sparse sub-frequency domain units. The network device also indicates the time-frequency resource used for transmitting the uplink sensing signal in any first time unit to the terminal device through the second indication information. On the one hand, the sub-time units in any time-frequency resource i in the resource set are sparse, which is less expensive than the continuous configuration of sub-time units in the existing SRS resource configuration scheme. On the other hand, the sub-frequency domain units in any time-frequency resource i are sparse, and the network device can also specify the time-frequency resource used for transmitting the uplink sensing signal in any time unit through the second information, which is more flexible in resource configuration than the fixed configuration of sub-frequency domain unit interval in the existing SRS resource configuration scheme such as two-part comb and four-part comb. Therefore, the above method can effectively solve the problems of large resource overhead and poor configuration flexibility in the existing SRS resource configuration scheme.

[0128] In some possible implementation manners, referring to FIG. 6, FIG. 6 is another flow diagram of a communication method provided by the present application. As shown in FIG. 6, the communication method can further include the following steps:

[0129] S350, the terminal device sends the uplink sensing signal to the network device based on the N3 time-frequency resources in the N3 first time units. Correspondingly, the network device receives the uplink sensing signal sent by the terminal device based on the N3 time-frequency resources in the N3 first time units.

[0130] In some possible implementation manners, after obtaining the N3 time-frequency resources corresponding to the N3 first time units, the terminal device can use the corresponding time-frequency resource to send the uplink sensing signal to the network device in each first time unit in turn. Correspondingly, the network device can receive the uplink sensing signal based on the corresponding time-frequency resource in each first time unit in turn.

[0131] S360, the network device determines the sensing result based on the uplink sensing signal received in the N3 first time units.

[0132] In some possible implementation manners, the network device can determine the sensing result based on the uplink sensing signals received by the network device in the N3 first time units. It should be understood that the sensing result can be specifically a sensing result of a target (or referred to as a sensing object) in the environment. Here, the target can be a pedestrian, a building, a vehicle, or the like in the surrounding environment of the network device and the terminal device, and the present application does not limit this.

[0133] Since the uplink sensing signals are received by the network device after being reflected, scattered, diffracted, or the like of the target, the network device can sense the target based on the received sensing signals. The sensing result can include the speed of the target, the distance between the target and the terminal device or the network device, the acceleration of the target, and the like. For example, the network device can determine the distance between the network device and the target based on the time delay of the received uplink sensing signals. For another example, the network device can determine the speed of the target based on the Doppler frequency domain of the received uplink sensing signals.

[0134] In an optional implementation manner, the network device can receive N3 sensing signals in the N3 first time units, and determine N3 sensing results corresponding to the target based on the N3 sensing signals. Then, the network device can jointly process the N3 sensing results, such as averaging, to obtain the final sensing result of the target. It should be understood that this implementation manner can improve the sensing accuracy.

[0135] It should be further understood that in the embodiments of the present application, the first indication information can also be understood as time domain location information of the time domain resource i. The third indication information can also be understood as frequency domain location information of the time-frequency resource i.

[0136] The first information described above can further include other information, such as information for indicating at least one antenna port corresponding to each time-frequency resource, information for indicating a beam direction corresponding to each antenna port, and the like, and the present application does not limit the specific content of the first information.

[0137] In addition, the foregoing is mainly described by taking a time unit as a time slot, a sub-time unit as a symbol, a frequency domain unit as a resource block, and a sub-frequency domain unit as a subcarrier as an example. In actual implementation, the time unit, the sub-time unit, the frequency domain unit, and the sub-frequency domain unit provided by the present application can also have possible implementation manners, as long as one time unit includes multiple sub-time units and one frequency domain unit includes multiple sub-frequency domain units, and the present application does not limit this.

[0138] In addition, the uplink reference signal provided by the embodiments of the present application can be various types of uplink signals, such as SRS, and the like. The present application does not limit the specific implementation form of the uplink reference signal.

[0139] The communication method provided by the embodiments of the present application is described in detail above in combination with FIG. 1 to FIG. 6. The communication apparatus provided by the embodiments of the present application will be described in detail below in combination with FIG. 7 and FIG. 8. It should be understood that the description of the embodiments of the communication apparatus corresponds to the description of the embodiments of the communication method, and thus the parts not described in detail can be referred to the foregoing description of the embodiments of the communication method.

[0140] Referring to FIG. 7, FIG. 7 is a structural schematic diagram of a communication apparatus provided by the present application. As shown in FIG. 7, the communication apparatus 70 can include a processing unit 71 and a transceiver unit 72. The processing unit 71 and the transceiver unit 72 can be software, hardware, or a combination of software and hardware.

[0141] The transceiver unit 72 can include a sending unit and a receiving unit. The sending unit is configured to implement a sending function, and the receiving unit is configured to implement a receiving function. The transceiver unit 72 can implement the sending function and / or the receiving function. The transceiver unit can also be described as a communication unit.

[0142] Optionally, the transceiver unit 72 can be configured to receive information sent by another apparatus and / or send information to another apparatus. The processing unit 71 can be configured to perform internal processing of the apparatus.

[0143] In a possible design, the communication apparatus 70 can correspond to a network device in the communication method shown in FIG. 3 or FIG. 6. For example, the communication apparatus 70 can be the network device itself, or a chip in the network device. The communication apparatus 70 can include units configured to perform operations performed by the network device in the communication method shown in FIG. 3 or FIG. 6, and each unit in the communication apparatus 70 is configured to implement the operations performed by the network device in the communication method shown in FIG. 3 or FIG. 6.

[0144] For example, the transceiver unit 72 is configured to send first information generated by the processing unit 71. Here, the first information is used to indicate a resource set, and the resource set is used to transmit an uplink sensing signal. The resource set includes M time-frequency resources. A time-frequency resource i in the M time-frequency resources includes N1 sub-time units that are discontinuous in a time unit and N2 sub-frequency units that are discontinuous in a frequency unit. Here, M, N1 and N2 are positive integers greater than or equal to 2, and i is an integer greater than or equal to 0 and less than M. The transceiver unit 72 is configured to send second information generated by the processing unit 71. Here, the second information is used to indicate N3 time-frequency resources corresponding to N3 time units, and the M time-frequency resources include the N3 time-frequency resources. N3 is a positive integer greater than or equal to 2.

[0145] For example, each time-frequency resource in the M time-frequency resources corresponds to the same number of resource elements.

[0146] For example, intervals of any two adjacent sub-time units in the N1 sub-time units are the same. It can also be understood that, within any one time unit corresponding to the time-frequency resource i, the non-continuous N1 sub-time units are periodically distributed. In this case, the first information can include first indication information of the time-frequency resource i. The first indication information can be used to indicate a first sub-time unit in the N1 sub-time units. The first indication information can also be used to indicate a sub-time unit interval corresponding to the N1 sub-time units.

[0147] For example, the first information further includes second indication information of the time-frequency resource i. The second indication information can be used to indicate the number N1 of sub-time units.

[0148] For example, intervals of any two adjacent sub-time units in the N1 sub-time units are different. The first information can include first bitmap information of the time-frequency resource i, and the first bitmap information corresponds to all sub-time units in a time unit one by one. A value of a j1th bit in the first bitmap information can be used to indicate whether the time-frequency resource i includes a j1th sub-time unit in the time unit. Here, j1 is a positive integer.

[0149] For example, intervals of any two adjacent sub-frequency domain units in the N2 sub-frequency domain units are the same. In this case, the first information can include third indication information of the time-frequency resource i. The third indication information can be used to indicate a first sub-frequency domain unit in the N2 sub-frequency domain units. The third indication information can also be used to indicate a sub-frequency domain unit interval corresponding to the N2 sub-frequency domain units.

[0150] For example, intervals of any two adjacent sub-frequency domain units in the N2 sub-frequency domain units are different. The first information can include second bitmap information of the time-frequency resource i, and the second bitmap information corresponds to all sub-frequency domain units in a frequency domain unit one by one. A value of a j2th bit in the second bitmap information can be used to indicate whether the time-frequency resource i includes a j2th sub-frequency domain unit in the frequency domain unit. Here, j2 is a positive integer.

[0151] For example, the first information can further include fourth indication information of all resource elements corresponding to the time-frequency resource i. The fourth indication information of any one resource element p in the all resource elements can include a first index of a sub-time unit corresponding to the resource element p in a time unit, and a second index of a sub-frequency domain unit corresponding to the resource element p in a frequency domain unit. Here, the first index can be used to indicate a position of the sub-time unit corresponding to the resource element p in the time unit in which the sub-time unit is located. The second index can be used to indicate a position of the sub-frequency domain unit corresponding to the resource element p in the frequency domain unit in which the sub-frequency domain unit is located.

[0152] For example, the second information can include N3 characters corresponding to the N3 first time units. The kth character in the N3 characters indicates the time-frequency resource corresponding to the kth first time unit in the N3 first time units, where k is a positive integer.

[0153] For example, the transceiver 72 can be configured to receive the uplink sensing signal based on the N3 time-frequency resources in the N3 first time units. The processing unit 71 can be further configured to determine the sensing result based on the received uplink sensing signal.

[0154] In one possible design, the communication apparatus 70 can correspond to a terminal device in the communication method of FIG. 3 or FIG. 6. For example, the communication apparatus 70 can be the terminal device itself, or a chip in the terminal device. The communication apparatus 70 can include units configured to perform operations performed by the terminal device in the communication method of FIG. 3 or FIG. 6, respectively.

[0155] For example, the transceiver 72 can be configured to receive the first information. Here, the first information indicates a resource set, and the resource set is used to transmit the uplink sensing signal. The resource set includes M time-frequency resources. The ith time-frequency resource in the M time-frequency resources includes N1 non-consecutive sub-time units in a time unit and N2 non-consecutive sub-frequency domain units in a frequency domain unit, where M, N1, and N2 are positive integers greater than or equal to 2, and i is an integer greater than or equal to 0 and less than M. The processing unit 71 can be configured to determine the resource set based on the first information. The transceiver 72 can be further configured to receive second information. Here, the second information indicates N3 time-frequency resources corresponding to N3 first time units, and the N3 time-frequency resources are included in the M time-frequency resources. N3 is a positive integer greater than or equal to 2. The processing unit 71 can be further configured to determine the N3 time-frequency resources corresponding to the N3 first time units based on the second information.

[0156] For example, each time-frequency resource in the M time-frequency resources corresponds to the same number of resource elements.

[0157] For example, any two adjacent sub-time units in the N1 sub-time units have the same interval. It can also be understood that, in any time unit corresponding to the ith time-frequency resource, the N1 non-consecutive sub-time units are periodically distributed. In this case, the first information can include first indication information of the ith time-frequency resource. The first indication information can be used to indicate the first sub-time unit in the N1 sub-time units. The first indication information can also be used to indicate the sub-time unit interval corresponding to the N1 sub-time units.

[0158] The first information further includes second indication information of the time-frequency resource i. The second indication information is used for indicating the number N1 of sub-time units.

[0159] The first information further includes second indication information of the time-frequency resource i. The second indication information is used for indicating the number N1 of sub-time units.

[0160] The first information further includes second indication information of the time-frequency resource i. The second indication information is used for indicating the number N1 of sub-time units.

[0161] The first information further includes second indication information of the time-frequency resource i. The second indication information is used for indicating the number N1 of sub-time units.

[0162] The first information further includes second indication information of the time-frequency resource i. The second indication information is used for indicating the number N1 of sub-time units.

[0163] The second information includes N3 characters corresponding to the N3 first time units. The kth character in the N3 characters is used for indicating the time-frequency resource corresponding to the kth first time unit in the N3 first time units, and k is a positive integer.

[0164] The transceiver 72 is further configured to transmit the uplink sensing signal on the N3 first time units based on the N3 time-frequency resources.

[0165] Please refer to FIG. 8, which is a structural diagram of another communication apparatus provided in the present application. The communication apparatus 80 can be used to implement the operation performed by the terminal device or the network device in the communication method shown in FIG. 3 or FIG. 6. Alternatively, the communication apparatus 80 can be the terminal device or the network device in the communication method shown in FIG. 3 or FIG. 6. The communication apparatus 80 includes a processor 81, a memory 82 and a bus system 83.

[0166] The memory 82 is configured to store relevant instructions and data. The memory 82 stores the following elements, executable modules or data structures, or a subset of them, or an extended set of them:

[0167] Operation instructions: include various operation instructions for implementing various operations.

[0168] Operating system: includes various system programs for implementing various basic services and processing hardware-based tasks.

[0169] Only one memory is shown in FIG. 8, but the memory can also be set to multiple according to the needs.

[0170] The communication apparatus 80 can further include a transceiver 84. The transceiver 84 can be a communication module, a transceiver circuit. In the embodiments of the present application, the transceiver 84 is configured to perform the receiving and transmitting operations of the messages or information involved in the methods shown in embodiments 1 to 4.

[0171] The processor 81 can be a controller, 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 device, a transistor logic device, a hardware component or any combination thereof. The processor 81 can also be a combination for implementing computing functions, such as one or more microprocessor combinations, combinations of DSP and microprocessor, etc.

[0172] In specific applications, the various components of the communication apparatus 80 are coupled together through the bus system 83, which can include not only a data bus, but also a power bus, a control bus and a status signal bus, etc. However, in order to clearly illustrate, all kinds of buses are marked as the bus system 83 in FIG. 8. For the convenience of representation, only the schematic diagram is shown in FIG. 8.

[0173] In the implementation, the communication device 80 can perform the method steps performed by the terminal device or the network device in the communication method shown in FIG. 3 or FIG. 6, the processor 81 can implement the functions of the processing unit 71, and the transceiver 84 can implement the functions of the transceiving unit 72.

[0174] It should be noted that in actual applications, the processor in the embodiments of the present application can be an integrated circuit chip with a signal processing capability. In the implementation process, each step of the method embodiments can be completed by integrated logic circuits of hardware in the processor or instructions in the form of software. The processor mentioned above can be a general processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. Each method, step and logic block diagram disclosed in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as a hardware code processor for execution, or a combination of hardware and software modules in the code processor for execution. The software module can be located in a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register or other mature storage media in the art. The storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.

[0175] It is to be appreciated that the memory in the embodiments of the application can be a volatile or non-volatile memory, or can include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable ROM (PROM), erasable PROM (EPROM), electrically EPROM (EEPROM), or flash memory. The volatile memory can be random access memory (RAM) used as external cache. By way of example, and not limitation, many forms of RAM are available, for example, static RAM (SRAM), dynamic RAM (DRAM), synchronous dynamic RAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct rambus RAM (DR RAM). Note that the memory described herein is intended to include, among others, these and any other suitable types of memory.

[0176] The application further provides a computer readable medium, which has stored thereon a computer program, and the computer program is executed by a computer to implement the method steps performed by the network device or the terminal device in the communication method shown in FIG. 3 or FIG. 6.

[0177] The application further provides a computer program product, which is executed by a computer to implement the method steps performed by the network device or the terminal device in the communication method shown in FIG. 3 or FIG. 6.

[0178] The application further provides a chip, which includes at least a processor. The processor is configured to execute computer execution instructions to enable a device installed with the chip to implement the method steps performed by the network device or the terminal device in the communication method shown in FIG. 3 or FIG. 6.

[0179] Optionally, the chip can further include an interface circuit. The interface circuit is configured to receive the computer execution instructions and transmit the computer execution instructions to the processor.

[0180] The application further provides a chip system, which comprises a processor for supporting a device on which the chip system is installed to implement the method steps performed by the network device or the terminal device in the communication method shown in FIG. 3 or FIG. 6. For example, data and / or information involved in the above method are generated or processed. In a possible design, the chip system further comprises a memory, and the memory is configured to store program instructions and data necessary for the data sending device. The chip system can be composed of a chip, or can include a chip and other discrete devices.

[0181] In the above method embodiments, the methods can be implemented by software, hardware, firmware or any combination thereof, entirely or partially. When implemented by software, the methods can be implemented in the form of a computer program product, entirely or partially. The computer program product comprises one or more computer instructions. When the computer instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the application are entirely or partially generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable apparatus. The computer instructions can be stored in a computer readable storage medium, or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be transferred from one website, computer, server or data center to another website, computer, server or data center through a wired (such as coaxial cable, optical fiber, digital subscriber line (DSL) or wireless (such as infrared, wireless, microwave, etc.)) way. 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, data center, etc. integrated with one or more available media. The available medium can be a magnetic medium (such as a floppy disk, a hard disk, a magnetic tape), an optical medium (such as a high-density digital video disc (digital video disc, DVD)) or a semiconductor medium (such as a solid state disk (solid state disk, SSD) and the like.

[0182] In various embodiments of the present application, the terms and / or descriptions of different embodiments are consistent and can be referred to each other if there is no special description and logical conflict. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0183] As used in the present specification, the terms "component," "module," "system" and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component can be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, or a computer. By way of illustration, both an application running on a computing device and the computing device can be a component. One or more components can reside within a process or thread of execution and a component can be localized, either in whole or in part, in a computer system. In addition, these components can execute from various computer readable media having various data structures stored thereon. The components can communicate via local or remote processes such as in accordance with a signal having one or more data packets (e.g., data from one component interacting with another component in a local system, distributed system, or across the Internet with another system, e.g., via an API, web service, etc.).

[0184] It should be understood that the "embodiments" mentioned throughout the specification mean that the specific features, structures or characteristics related to the embodiments are included in at least one of the embodiments of the present application. Therefore, the various embodiments throughout the specification do not necessarily refer to the same embodiments. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner.

[0185] It should be understood that in the embodiments of the present application, the numbers "first", "second", … are only used to distinguish different objects, such as to distinguish different network devices, and do not limit the scope of the embodiments of the present application, and the embodiments of the present application are not limited thereto.

[0186] It should also be understood that in the present application, "when", "if" and "if" all refer to the case where the network element will make corresponding processing under certain objective conditions, and are not limited by time, and do not require the network element to have a judgment action when it is implemented, nor does it mean that there are other limitations.

[0187] It should also be understood that in the embodiments of the present application, "A corresponding to B" means that B is associated with A, and B can be determined according to A. However, it should also be understood that the determination of B according to A does not mean that B is determined only according to A, but B can also be determined according to A and / or other information.

[0188] It should also be understood that the term "and / or" herein is only a description of the association relationship between the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0189] The meaning of the expression similar to "the item includes one or more of the following: A, B, and C" appearing in this application, if not specifically stated, generally means that the item can be any one of the following: A; B; C; A and B; A and C; B and C; A, B and C; A and A; A, A and A; A, A and B; A, A and C, A, B and B; A, C and C; B and B, B, B and B, B, B and C, C and C; C, C and C, and other combinations of A, B and C. The above is an example of three elements A, B and C to illustrate the optional items of the item. When expressed as "the item includes at least one of the following: A, B, …, and X", that is, when there are more elements in the expression, the applicable items of the item can also be obtained according to the foregoing rules.

[0190] Those skilled in the art can appreciate that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be realized in electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. A person skilled in the art can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0191] Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working processes of the above-described system, device and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

[0192] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be realized by other ways. For example, the device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0193] The units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0194] In addition, each function unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit.

[0195] The functions, if implemented in the form of software functional units and sold or used as independent products, can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application or the parts of the technical solutions that essentially contribute to the prior art or the parts of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0196] The above only describes the preferred embodiments of the technical solutions of the present application and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A communication method characterized by comprising: The method comprises: sending first information, wherein the first information is used to indicate a resource set for transmitting an uplink sensing signal, the resource set comprises M time-frequency resources, a time-frequency resource i in the M time-frequency resources comprises N1 sub-time units which are discontinuous in a time unit and N2 sub-frequency domain units which are discontinuous in a frequency domain unit, N1 and N2 are positive integers greater than or equal to 2, M is a positive integer greater than or equal to 2, and i is an integer greater than or equal to 0 and less than M; sending second information, wherein the second information is used to indicate N3 time-frequency resources corresponding to N3 first time units, and the M time-frequency resources comprise the N3 time-frequency resources, and N3 is a positive integer greater than or equal to 2.

2. The method of claim 1, wherein, Each time-frequency resource in the M time-frequency resources corresponds to the same number of resource elements.

3. The method according to claim 1 or 2, characterized in that, Any two adjacent sub-time units in the N1 sub-time units have the same interval, the first information comprises first indication information of the time-frequency resource i, the first indication information is used to indicate a first sub-time unit in the N1 sub-time units, and the first indication information is also used to indicate a sub-time unit interval corresponding to the N1 sub-time units.

4. The method of claim 3, wherein, The first information further comprises second indication information of the time-frequency resource i, and the second indication information is used to indicate the number N1 of sub-time units.

5. The method according to claim 1 or 2, characterized in that, Any two adjacent sub-time units in the N1 sub-time units have different intervals, the first information comprises first bitmap of the time-frequency resource i, the first bitmap corresponds to all sub-time units in the time unit one by one, and a value of a j1th bit in the first bitmap is used to indicate whether the time-frequency resource i comprises a j1th sub-time unit in the time unit, j1 being a positive integer.

6. The method according to any one of claims 1 to 5, characterized in that, Any two adjacent sub-frequency domain units in the N2 sub-frequency domain units have the same interval, the first information further comprises third indication information of the time-frequency resource i, the third indication information is used to indicate a first sub-frequency domain unit in the N2 sub-frequency domain units, and the third indication information is also used to indicate a sub-frequency domain unit interval corresponding to the N2 sub-frequency domain units.

7. The method according to any one of claims 1 to 5, characterized in that, Any two adjacent sub-frequency domain units in the N2 sub-frequency domain units have different intervals, the first information further comprises second bitmap of the time-frequency resource i, the second bitmap corresponds to all sub-frequency domain units in the frequency domain unit one by one, and a value of a j2th bit in the second bitmap is used to indicate whether the time-frequency resource i comprises a j2th sub-frequency domain unit in the frequency domain unit, j2 being a positive integer.

8. The method according to any one of claims 1 to 7, characterized in that, The first information further comprises fourth indication information of all resource elements corresponding to the time-frequency resource i, the fourth indication information of any one resource element p in the all resource elements comprises a first index of a sub-time unit corresponding to the resource element p in the time unit, and a second index of the resource element p in the frequency domain unit.

9. The method according to any one of claims 1 to 8, characterized in that, The second information includes N3 characters corresponding to the N3 first time units, and a kth character in the N3 characters is used to indicate a time-frequency resource corresponding to a kth first time unit in the N3 first time units, where k is a positive integer.

10. A communication method characterized by comprising: The method comprises: receiving first information, wherein the first information is used to indicate a resource set for transmitting an uplink sensing signal, the resource set includes M time-frequency resources, a time-frequency resource i in the M time-frequency resources includes N1 sub-time units that are discontinuous in a time unit and N2 sub-frequency domain units that are discontinuous in a frequency domain unit, N1 and N2 are positive integers greater than or equal to 2, M is a positive integer greater than or equal to 2, and i is an integer greater than or equal to 0 and less than M; receiving second information, wherein the second information is used to indicate N3 time-frequency resources corresponding to N3 first time units, and the M time-frequency resources include the N3 time-frequency resources, and N3 is a positive integer greater than or equal to 2.

11. The method of claim 10, wherein, Each time-frequency resource in the M time-frequency resources corresponds to the same number of resource elements.

12. The method according to claim 10 or 11, characterized in that, Any two adjacent sub-time units in the N1 sub-time units have the same interval, the first information includes first indication information of the time-frequency resource i, the first indication information is used to indicate a first sub-time unit in the N1 sub-time units, and the first indication information is also used to indicate a sub-time unit interval corresponding to the N1 sub-time units.

13. The method of claim 12, wherein, The first information also includes second indication information of the time-frequency resource i, and the second indication information is used to indicate a sub-time unit number N1.

14. The method of claim 10 or 11, wherein, Any two adjacent sub-time units in the N1 sub-time units have different intervals, the first information includes a first bit map of the time-frequency resource i, the first bit map corresponds to all sub-time units in the time unit one by one, and a value of a j1th bit in the first bit map is used to indicate whether the time-frequency resource i includes a j1th sub-time unit in the time unit, where j1 is a positive integer.

15. The method according to any one of claims 10 to 14, characterized in that, Any two adjacent sub-frequency domain units in the N2 sub-frequency domain units have the same interval, the first information also includes third indication information of the time-frequency resource i, the third indication information is used to indicate a first sub-frequency domain unit in the N2 sub-frequency domain units, and the third indication information is also used to indicate a sub-frequency domain unit interval corresponding to the N2 sub-frequency domain units.

16. The method according to any one of claims 10-14, characterized in that, Any two adjacent sub-frequency domain units in the N2 sub-frequency domain units have different intervals, the first information also includes a second bit map of the time-frequency resource i, the second bit map corresponds to all sub-frequency domain units in the frequency domain unit one by one, and a value of a j2th bit in the second bit map is used to indicate whether the time-frequency resource i includes a j2th sub-frequency domain unit in the frequency domain unit, where j2 is a positive integer.

17. The method according to any one of claims 10-16, characterized in that, The fourth indication information of any one resource element p in the first information includes a first index of a sub-time unit corresponding to the resource element p in the time unit, and a second index of a sub-frequency unit corresponding to the resource element p in the frequency unit.

18. The method according to any one of claims 10-17, characterized in that, The second information includes N3 characters corresponding to the N3 first time units, and a kth character in the N3 characters is used to indicate time-frequency resources corresponding to a kth first time unit in the N3 first time units, where k is a positive integer.

19. A communications device, characterized by The communication device includes modules or units for implementing the communication method in any one of claims 1-9 or in any one of claims 10-18.

20. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a computer program, and when the computer program is executed, the communication method in any one of claims 1-9 or in any one of claims 10-18 is implemented.

21. A chip, characterized by The processor is configured to execute computer execution instructions to enable a device installed with the chip to perform the communication method in any one of claims 1-9 or in any one of claims 10-18. The chip further includes an interface circuit configured to receive the computer execution instructions and transmit the computer execution instructions to the processor.

22. The chip of claim 21, wherein, 23. A computer program product, the computer program product being configured to execute the communication method in any one of claims 1-9 or in any one of claims 10-18. The processor is configured to execute computer execution instructions to enable a device installed with the chip to perform the communication method in any one of claims 1-9 or in any one of claims 10-18.

24. A communications device, characterized by The chip further includes an interface circuit configured to receive the computer execution instructions and transmit the computer execution instructions to the processor.

23. A computer program product, the computer program product being configured to execute the communication method in any one of claims 1-9 or in any one of claims 10-18. The processor is configured to execute computer execution instructions to enable a device installed with the chip to perform the communication method in any one of claims 1-9 or in any one of claims 10-18. ​

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