Communication method and related equipment

Abstract

The invention provides a communication method and related equipment, relates to the field of communication, and is used for improving the sensing performance in a communication system in a communication and sensing integrated scene. In the method, first equipment sends first information, the first information is used for scheduling a first resource, the first resource comprises N orthogonal frequency division multiplexing (OFDM) symbols on a first time slot, N is a positive integer, and time domain intervals between adjacent OFDM symbols in the N OFDM symbols are first intervals; the first device transmits a sensing signal, the sensing signal is carried in the N OFDM symbols, the sensing signal is modulated according to a first modulation mode, and the amplitudes of different constellation points in a constellation diagram corresponding to the first modulation mode are equal, or the amplitudes of the different constellation points in the constellation diagram corresponding to the first modulation mode are equal; the difference value of the amplitudes of different constellation points in the constellation diagram corresponding to the first modulation mode is smaller than or equal to a first threshold value.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication, and in particular to a communication method and related devices. BACKGROUND

[0002] Currently, integrated sensing and communication (ISAC) is widely considered as a key application scenario in future communication systems. In the scenario of integrated sensing and communication, a wireless signal transmitted by a sending end to a receiving end needs to have both sensing and communication capabilities. The sensing capability refers to the ability of the receiving end to sense the moving speed, distance, etc. of the sending end, or to sense the speed of an obstacle in the environment around the sending end, the relative position between the obstacle and the sending end, etc. based on the wireless signal.

[0003] For example, the sending end can allocate communication resources on a source block basis, that is, allocate certain resources to each user who needs to transmit a sensing signal, and the resources are used to carry the sensing signal, and then transmit the sensing signal. However, in the scenario of sensing speed, etc., the sensing performance is poor due to the inability to maximize the time domain diversity gain.

[0004] Therefore, in the scenario of integrated sensing and communication, how to improve the sensing performance in the communication system is a technical problem to be solved. SUMMARY

[0005] The present application provides a communication method and related devices for more accurately sensing speed, etc. in the scenario of integrated sensing and communication, and improving the sensing performance in the communication system.

[0006] The first aspect of the present application provides a communication method. Optionally, the method is executed by a first device, or the method is executed by part of components (such as a processor, a chip, or a chip system, etc.) in the first device, or the method can also be implemented by a logic module or software that can realize all or part of the functions of the first device. In the first aspect and its possible implementation manners, the communication method is taken as an example to be executed by the first device, the first device transmits first information, the first information is used to schedule first resources, the first resources include N orthogonal frequency division multiplexing (OFDM) symbols on a first time slot, N is a positive integer, and the time domain interval between adjacent OFDM symbols in the N OFDM symbols is a first interval; the first device transmits a sensing signal, the sensing signal is carried in the N OFDM symbols, and the sensing signal is modulated according to a first modulation mode, the amplitude of different constellation points in a constellation diagram corresponding to the first modulation mode is equal, or the difference between the amplitudes of different constellation points in the constellation diagram corresponding to the first modulation mode is less than or equal to a first threshold.

[0007] Based on the above method, the difference of the amplitude of different constellation points in the corresponding constellation diagram of the first modulation mode is small, and the sidelobe energy of the corresponding distance ambiguity function is low, so as to reduce the interference on other targets, and further improve the sensing performance. In addition, the time domain intervals of the N OFDM symbols carrying the sensing signal are equal, that is, the N OFDM symbols are uniformly distributed in the time domain. Compared with the concentrated distribution in the time domain, this uniform distribution can make the N OFDM symbols utilize the entire time domain as much as possible, so that the time domain diversity gain is greater, and the Doppler resolution of the sensing result obtained by transmitting the sensing signal is higher, which can more accurately sense the speed and the like, and improve the sensing performance in the communication system.

[0008] In a possible implementation of the first aspect, the first interval is determined according to a ratio of the first value and the N.

[0009] Based on the above implementation, the first interval between the N OFDM symbols is adapted to the ratio of the N OFDM symbols in the total scheduling resource, so that the N OFDM symbols can be distributed as evenly as possible according to the ratio, rather than concentrated in the entire time slot, and more time domain resources can be occupied as much as possible, so as to improve the Doppler resolution and more accurately sense the speed.

[0010] In a possible implementation of the first aspect, the first interval satisfies the following formula: E=floor(Δ1), where E is the first interval, Δ1 is the ratio of the first value and the N, and floor represents the floor operation.

[0011] Based on the above implementation, since the above formula is relatively simple, the first device can quickly determine the first interval. In addition, the first interval calculated by the above formula is as close as possible to the ratio of the N OFDM symbols in the total scheduling resource, so as to cover the entire time slot of the total scheduling resource as much as possible, so as to utilize the entire time slot as much as possible, and maximize the time domain diversity gain, so as to improve the performance of sensing the speed and the like.

[0012] In a possible implementation of the first aspect, the first information comprises: a first group of bits, a second group of bits, and a third group of bits, wherein the first group of bits is used to indicate a position of a first OFDM symbol in the N OFDM symbols, the second group of bits is used to indicate the first interval, and the third group of bits is used to indicate a position of a last OFDM symbol in the N OFDM symbols; or the first group of bits is used to indicate a position of a first OFDM symbol in the N OFDM symbols, the second group of bits is used to indicate the first interval, and the third group of bits is used to indicate the N; or the first group of bits is used to indicate a position of a last OFDM symbol in the N OFDM symbols, the second group of bits is used to indicate the first interval, and the third group of bits is used to indicate the N.

[0013] According to the implementation, the first information can accurately indicate the time domain positions of the plurality of OFDM symbols by using the first group of bits, the second group of bits, and the third group of bits. In addition, the implementation provides multiple ways of indicating the time domain positions of the plurality of OFDM symbols, and is more flexible.

[0014] In a possible implementation of the first aspect, the first information is also used to schedule a second resource, the second resource comprises M OFDM symbols on the first time slot, M is a positive integer, and time domain intervals between adjacent OFDM symbols in the M OFDM symbols are all the second interval; the first device transmits first data, the first data is carried in the M OFDM symbols, and the first data is modulated according to a second modulation manner, an order of the second modulation manner is greater than or equal to an order of the first modulation manner.

[0015] Based on the above implementation manner, in a case that the order of the second modulation manner is greater than the order of the first modulation manner, the perception signal modulated by the first modulation manner can be used to guarantee the perception performance, and the first data modulated by the second modulation manner can be used to guarantee the communication performance, so that the perception requirement and the communication requirement can be balanced. Moreover, the manner is based on the existing first modulation manner and the second modulation manner, for example, the modulation manner combining QPSK and 64-QAM. This manner does not change the modulation manner of the data or the signal, so that the modulation and coding scheme (MCS) table does not need to be changed, the influence on the standard is small, and the standard is easy to adopt, and thus the implementation is easy. In addition, in the manner, the first resource and the second resource are both scheduled in the granularity of the OFDM symbol, so that the resource can be flexibly scheduled for the perception signal corresponding to the low-order modulation manner (for example, the first modulation manner) and the data corresponding to the high-order modulation manner (for example, the second modulation manner). Compared with a scheme that can only be scheduled in the unit of RB, the manner can control the scheduling of each OFDM symbol, and by controlling the interval of the OFDM symbol used to carry the perception signal and the interval of the OFDM symbol used to carry the data, the two types of OFDM symbols can be uniformly distributed in the time slot, so that the time slot resource can be fully utilized, and the perception and communication performance can be improved.

[0016] In a possible implementation manner of the first aspect, the second interval is determined according to a ratio of the first value and the M.

[0017] Based on the above manner, the first interval between the M OFDM symbols is adapted to the ratio of the M OFDM symbols in the total scheduling resource, so that the M OFDM symbols can be as uniformly distributed as possible in the entire time slot according to the ratio, instead of being concentratedly distributed in the entire time slot. On the one hand, the time slot resource can be better utilized for communication, and on the other hand, the influence of the scheduling of the second resource on the scheduling of the first resource can be avoided, and the first resource is used for the transmission of the perception signal, so that the perception requirement and the communication requirement can be balanced.

[0018] In a possible implementation manner of the first aspect, the second interval satisfies the following formula: F=floor(Δ2), where F is the second interval, Δ2 is the ratio of the first value and the M, and floor represents a down rounding operation.

[0019] Based on the above manner, since the formula is relatively simple, the first device can quickly determine the second interval. And the first interval calculated by the formula is as close as possible to the ratio of the M OFDM symbols in the total scheduling resource, so as to cover the entire time slot of the total scheduling resource as much as possible, thereby utilizing the entire time slot as much as possible, and the time domain diversity gain maximization can be realized, thereby improving the communication performance.

[0020] In a possible implementation of the first aspect, the first information includes: a fourth group of bits, a fifth group of bits, and a sixth group of bits, where the fourth group of bits is used to indicate the position of the first OFDM symbol in the M OFDM symbols, the fifth group of bits is used to indicate the second interval, and the sixth group of bits is used to indicate the position of the last OFDM symbol in the M OFDM symbols; or the fourth group of bits is used to indicate the position of the first OFDM symbol in the M OFDM symbols, the fifth group of bits is used to indicate the second interval, and the sixth group of bits is used to indicate the M; or the fourth group of bits is used to indicate the position of the last OFDM symbol in the M OFDM symbols, the fifth group of bits is used to indicate the second interval, and the sixth group of bits is used to indicate the M.

[0021] Based on the above manner, the first information can accurately indicate the time domain position of the M OFDM symbols through the fourth group of bits, the fifth group of bits, and the sixth group of bits. And the manner provides multiple ways to indicate the time domain position of the M OFDM symbols, and is relatively flexible.

[0022] In a possible implementation of the first aspect, the first information is also used to schedule a third resource, the third resource includes K OFDM symbols on the first time slot, K is a positive integer, and each of the K OFDM symbols is adjacent to one of the N OFDM symbols; and the first device transmits a demodulation reference signal, which is carried in the K OFDM symbols.

[0023] Based on the above implementation, by making each of the K OFDM symbols adjacent to one of the N OFDM symbols, a pair of adjacent symbols can be formed, and then scheduling can be performed in the form of a group, and the signals carried by the adjacent symbols can also be bound.

[0024] In a possible implementation of the first aspect, the first information further includes: position distribution information of the demodulation reference signal, the position distribution information including: information used to describe the position of the N OFDM symbols.

[0025] Based on the above implementation manner, the OFDM symbol carrying the sensing signal and the OFDM symbol carrying the demodulation reference signal are formed into a two-by-two group, and both are uniformly distributed on the entire slot, thereby improving sensing performance.

[0026] The second aspect of the present application provides a communication method. Optionally, the method is executed by a second device, or the method is executed by some components (such as a processor, a chip, or a chip system) in the second device, or the method can also be implemented by a logic module or software that can realize all or part of the functions of the second device. In the second aspect and its possible implementation manners, the communication method is taken as an example to be executed by the second device. The second device transmits first information, the first information is used for scheduling a first resource and a third resource, the first resource includes N OFDM symbols on a first time slot, N is a positive integer, the third resource includes K OFDM symbols on the first time slot, K is a positive integer, and each of the K OFDM symbols is adjacent to one of the N OFDM symbols; the second device transmits a sensing signal, the sensing signal is carried in the N OFDM symbols, the sensing signal is modulated according to a first modulation manner, the amplitude of different constellation points in a constellation diagram corresponding to the first modulation manner is equal, or the difference between the amplitudes of different constellation points in the constellation diagram corresponding to the first modulation manner is less than or equal to a first threshold value; and the second device transmits a demodulation reference signal, the demodulation reference signal is carried in the K OFDM symbols.

[0027] In a possible implementation manner of the second aspect, the first information includes position distribution information of the demodulation reference signal, and the position distribution information includes information used for describing positions of the K OFDM symbols.

[0028] The third aspect of the present application provides a communication method. Optionally, the method is executed by a third device, or the method is executed by some components (such as a processor, a chip, or a chip system) in the third device, or the method can also be implemented by a logic module or software that can realize all or part of the functions of the third device. In the third aspect and its possible implementation manners, the communication method is taken as an example to be executed by the third device. The third device receives first information, the first information is used for scheduling a first resource, the first resource includes N OFDM symbols on a first time slot, N is a positive integer, and the time domain interval between adjacent OFDM symbols in the N OFDM symbols is a first interval; the third device transmits a sensing signal, the sensing signal is carried in the N OFDM symbols, the sensing signal is modulated according to a first modulation manner, the amplitude of different constellation points in a constellation diagram corresponding to the first modulation manner is equal, or the difference between the amplitudes of different constellation points in the constellation diagram corresponding to the first modulation manner is less than or equal to a first threshold value.

[0029] In a possible implementation of the third aspect, the first interval is determined according to a ratio of a first value and the N, and the first value is a total number of OFDM symbols in the total scheduled resource.

[0030] In a possible implementation of the third aspect, the first interval satisfies the following formula: E = floor (Δ1), where E is the first interval, Δ1 is the ratio of the first value and the N, and floor represents a floor operation.

[0031] In a possible implementation of the third aspect, the first information includes: a first group of bits, a second group of bits, and a third group of bits, where the first group of bits is used to indicate a position of a first OFDM symbol in the N OFDM symbols, the second group of bits is used to indicate the first interval, and the third group of bits is used to indicate a position of a last OFDM symbol in the N OFDM symbols; or the first group of bits is used to indicate a position of a first OFDM symbol in the N OFDM symbols, the second group of bits is used to indicate the first interval, and the third group of bits is used to indicate the N; or the first group of bits is used to indicate a position of a last OFDM symbol in the N OFDM symbols, the second group of bits is used to indicate the first interval, and the third group of bits is used to indicate the N.

[0032] The fourth aspect of the present application provides a communication method. Optionally, the method is executed by a fourth device, or the method is executed by some components (for example, a processor, a chip, or a chip system) in the fourth device, or the method can also be implemented by a logic module or software that can realize all or part of the functions of the fourth device. In the fourth aspect and possible implementation manners thereof, the communication method is taken as an example executed by the fourth device, the fourth device receives first information, the first information is used to schedule a second resource, the second resource includes M OFDM symbols on a first time slot, M is a positive integer, and time domain intervals between adjacent OFDM symbols in the M OFDM symbols are all the second interval; the fourth device transmits first data, the first data is carried in the M OFDM symbols, the first data is modulated according to a second modulation mode, the order of the second modulation mode is greater than or equal to the order of a first modulation mode, or the amplitude of different constellation points in a constellation diagram corresponding to the first modulation mode is equal, or the difference between the amplitudes of different constellation points in the constellation diagram corresponding to the first modulation mode is less than or equal to a first threshold value.

[0033] In a possible implementation of the fourth aspect, the second interval is determined according to a ratio of a first value and the M, and the first value is a total number of OFDM symbols in the total scheduled resource.

[0034] In a possible implementation of the fourth aspect, the second interval satisfies the following formula: F=floor(Δ2), where F is the second interval, Δ2 is a ratio of the first value and the M, and floor represents a floor operation.

[0035] In a possible implementation of the fourth aspect, the first information includes: a fourth group of bits, a fifth group of bits, and a sixth group of bits, where the fourth group of bits is used to indicate a position of a first OFDM symbol in the M OFDM symbols, the fifth group of bits is used to indicate the second interval, and the sixth group of bits is used to indicate a position of a last OFDM symbol in the M OFDM symbols; or the fourth group of bits is used to indicate the position of the first OFDM symbol in the M OFDM symbols, the fifth group of bits is used to indicate the second interval, and the sixth group of bits is used to indicate the M; or the fourth group of bits is used to indicate the position of the last OFDM symbol in the M OFDM symbols, the fifth group of bits is used to indicate the second interval, and the sixth group of bits is used to indicate the M.

[0036] The fifth aspect of the present application provides a communication method. Optionally, the method is executed by a fifth device, or the method is executed by part of components (for example, a processor, a chip, or a chip system) in the fifth device, or the method can also be implemented by a logic module or software that can realize all or part of the functions of the fifth device. In the fifth aspect and possible implementation manners thereof, the communication method is described by taking the example of being executed by the fifth device. The fifth device receives first information, where the first information is used to schedule a first resource and a third resource. The first resource includes N orthogonal frequency division multiplexing (OFDM) symbols on a first time slot, where N is a positive integer. The third resource includes K OFDM symbols on the first time slot, where K is a positive integer. Each of the K OFDM symbols is adjacent to one of the N OFDM symbols. The fifth device transmits a sensing signal, where the sensing signal is carried in the N OFDM symbols. The sensing signal is modulated according to a first modulation mode. In a constellation corresponding to the first modulation mode, amplitudes of different constellation points are equal, or a difference between amplitudes of different constellation points in the constellation corresponding to the first modulation mode is less than or equal to a first threshold. The fifth device transmits a demodulation reference signal, where the demodulation reference signal is carried in the K OFDM symbols.

[0037] In a possible implementation of the fifth aspect, the first information includes position distribution information of the demodulation reference signal, where the position distribution information includes information used to describe positions of the K OFDM symbols.

[0038] The sixth aspect of the present application provides a communication apparatus, which can be the first device described above. The communication apparatus includes modules or units for performing the methods described in the first aspect and any possible implementation manner thereof.

[0039] The seventh aspect of the present application provides a communication apparatus, which can be the second device. The communication apparatus comprises modules or units for performing the method described in the second aspect and any possible implementation manner thereof.

[0040] The eighth aspect of the present application provides a communication apparatus, which can be the third device. The communication apparatus comprises modules or units for performing the method described in the third aspect and any possible implementation manner thereof.

[0041] The ninth aspect of the present application provides a communication apparatus, which can be the fourth device. The communication apparatus comprises modules or units for performing the method described in the fourth aspect and any possible implementation manner thereof.

[0042] The tenth aspect of the present application provides a communication apparatus, which can be the fifth device. The communication apparatus comprises modules or units for performing the method described in the fifth aspect and any possible implementation manner thereof.

[0043] The eleventh aspect of the present application provides a communication apparatus, which can be the first device, the second device, the third device, the fourth device, or the fifth device, can be a component (for example, a processor, a chip, or a chip system, etc.) applied to the first device, the second device, the third device, the fourth device, or the fifth device, can also be a logic module or software (for example, a CU, a DU, or a RU, etc.) capable of realizing all or part of the functions of the first device, the second device, the third device, the fourth device, or the fifth device. The communication apparatus comprises:

[0044] The processor is configured to execute a program, so that the communication apparatus performs the method described in the first aspect or the second aspect and any possible implementation manner thereof.

[0045] Optionally, the communication apparatus further comprises a memory, and the processor is coupled to the memory; and the memory is configured to store the program.

[0046] The twelfth aspect of the present application provides a chip or a chip system, which comprises at least one processor and a communication interface, the communication interface and the at least one processor are connected through a line, and the at least one processor is configured to run a computer program or instruction to perform the communication method described in any one of the first aspect, the second aspect, the third aspect, the fourth aspect, or the fifth aspect, or any possible implementation manner thereof.

[0047] The communication interface in the chip can be an input / output interface, a pin, or a circuit, etc.

[0048] In a possible implementation, the chip or the chip system described in the foregoing description of the present application further includes at least one memory in which instructions are stored. The memory can be a storage unit inside the chip, for example, a register, a cache, etc., or a storage unit of the chip, for example, a read-only memory, a random access memory, etc.

[0049] The thirteenth aspect of the present application provides a communication system, including the communication device performing the method in the first aspect and any possible implementation manner thereof, the communication device performing the method in the second aspect and any possible implementation manner thereof, the communication device performing the method in the third aspect and any possible implementation manner thereof, the communication device performing the method in the fourth aspect and any possible implementation manner thereof, and the communication device performing the method in the fifth aspect and any possible implementation manner thereof.

[0050] Or,

[0051] The gateway station, the communication device performing the method in the first aspect and any possible implementation manner thereof, and the communication device performing the method in the third aspect and any possible implementation manner thereof.

[0052] The fourteenth aspect of the present application provides a computer readable storage medium including instructions, when the instructions are run on a computer, causing the computer to perform the method in the first aspect, or causing the computer to perform the method in the second aspect, or causing the computer to perform the method in the third aspect, or causing the computer to perform the method in the fourth aspect, or causing the computer to perform the method in the fifth aspect.

[0053] The fifteenth aspect of the present application provides a computer program product including instructions, when the instructions are run on a computer, causing the computer to perform the method in the first aspect, or causing the computer to perform the method in the second aspect, or causing the computer to perform the method in the third aspect, or causing the computer to perform the method in the fourth aspect, or causing the computer to perform the method in the fifth aspect.

[0054] The technical effects brought by the second aspect to the fifteenth aspect or any possible implementation manner thereof can refer to the technical effects brought by the first aspect or the related possible implementation manner of the first aspect, which will not be described here. BRIEF DESCRIPTION OF DRAWINGS

[0055] Figure 1 A schematic diagram of a system in an embodiment of the present application;

[0056] Figures 2A to 2D A schematic diagram of an application scenario in an embodiment of the present application;

[0057] Figure 3 Figure 1 is a flowchart of a communication method according to an embodiment of the present application;

[0058] Figure 4 Figure 2 is a schematic diagram of a structure of a first resource according to an embodiment of the present application;

[0059] Figures 5A to 5D Figure 3 is a schematic diagram of a composition of first information according to an embodiment of the present application;

[0060] Figure 6 Figure 4 is a schematic diagram of a distribution of OFDM symbols according to an embodiment of the present application;

[0061] Figures 7A to 7D Figure 5 is another schematic diagram of a composition of first information according to an embodiment of the present application;

[0062] Figure 8 Figure 6 is a schematic diagram of a composition of a third resource according to an embodiment of the present application;

[0063] Figure 9 Figure 7 is a diagram of a position distribution of DMRS according to an embodiment of the present application;

[0064] Figure 10 Figure 8 is a diagram of a distribution of symbol 1 and symbol 2 in time domain according to an embodiment of the present application;

[0065] Figure 11 Figure 9 is a schematic diagram of a technical effect according to an embodiment of the present application;

[0066] Figure 12 Figure 10 is another schematic diagram of a technical effect according to an embodiment of the present application;

[0067] Figure 13 Figure 11 is a schematic diagram of a communication device according to an embodiment of the present application;

[0068] Figure 14 Figure 12 is another schematic diagram of a communication device according to an embodiment of the present application;

[0069] Figure 15 Figure 13 is another schematic diagram of a communication device according to an embodiment of the present application. DETAILED DESCRIPTION

[0070] First, some terms in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

[0071] 1. Access network device:

[0072] Access network equipment typically contains communication modules, circuits, or chips that perform corresponding communication functions. It also contains programs or instructions for performing these functions, as well as the corresponding programs or instructions themselves. For example, access network equipment can be a base station (BS), an evolved NodeB (eNodeB), a transmitting point (TP), an access point (AP), a transmission OFDM symbol reception point (TRP), a mobile switching center, a next-generation NodeB (gNB), a next-generation base station in a future communication system, or an access node in a WiFi system, etc. Access network equipment can also be a macro base station (such as...). Figure 1 110a), micro base stations or indoor stations (such as Figure 1 The access network device can be a relay node or donor node (as described in section 110b), or a wireless controller, satellite, drone, balloon, or aircraft in a CRAN scenario. Optionally, the access network device can also be a server, wearable device, vehicle, or in-vehicle equipment. For example, in vehicle-to-everything (V2X) technology, the access network device can be a roadside unit (RSU). All or part of the functions of the access network device in this application can also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (e.g., a cloud platform). The access network device in this application can also be a logical node, logical module, or software capable of implementing all or part of the access network device functions.

[0073] 2. Terminal equipment

[0074] A terminal device can communicate with one or more core networks or the Internet via a radio access network (RAN), and the terminal device can be a mobile terminal device, such as a mobile phone (or called "cellular" phone, mobile phone), a computer, and a data card, for example, which can be a portable, pocket-sized, handheld, built-in computer, or vehicle-mounted mobile device that exchanges voice and / or data with a radio access network. For example, a personal communication service (PCS) phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a Pad, a computer with wireless transceiver function, and the like. The wireless terminal device can also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station (MS), a remote station, an access point (AP), a remote terminal, an access terminal, a user terminal, a user agent, a subscriber station (SS), a customer premises equipment (CPE), a terminal, a user equipment (UE), a mobile terminal (MT), and the like. The terminal device can also be a wearable device and a next-generation communication system, such as a terminal device in a 5G communication system or a terminal device in a future evolved public land mobile network (PLMN), and the like.

[0075] 3. Modulation and demodulation:

[0076] Modulation refers to that a transmitting end performs constellation mapping on a bit stream (which can be an encoded bit stream) to be transmitted according to a constellation diagram, to obtain modulation symbols (modulation symbols s); demodulation refers to that a receiving end, after receiving the modulation symbols, performs constellation demapping on the modulation symbols according to the constellation diagram, to recover the bit stream. The bit stream can include or carry data. Through the transmission mechanism, more information bits can be carried on a given transmission resource.

[0077] Common modulation modes include quadrature amplitude modulation (QAM) or phase shift keying (PSK).

[0078] According to the order of QAM, QAM can also be referred to as M-QAM or MQAM or QAM-M, etc. Wherein, M is the order of QAM. Exemplarily, QAM can include at least one of the following: 16QAM, 64QAM or 256QAM. Each QAM can correspond to a constellation diagram. The difference between the amplitudes of different constellation points in the QAM constellation diagram is large, and the modulation symbols obtained through the modulation mode are not constant modulus.

[0079] According to the order of PSK, PSK can also be referred to as M-PSK or MPSK or PSK-M, etc. Wherein, M is the order of PSK modulation. Exemplarily, PSK can include at least one of the following: 2PSK, 4PSK, 16PSK, 64PSK, etc. 2PSK is also called binary phase shift keying (BPSK), and 4PSK is also called quadrature phase shift keying (QPSK). Each PSK can correspond to a constellation diagram. The amplitudes of different constellation points in the PSK constellation diagram are equal, and the modulation symbols obtained through the modulation mode are constant modulus.

[0080] In this application, the modulation symbol can also be referred to as a modulation symbol sequence, a modulation symbol stream, a modulation symbol string or a modulation symbol set, etc., without limitation.

[0081] 4. Resource scheduling granularity:

[0082] Currently, the minimum granularity of resource scheduling can be a source block (RB). For example, an access network device can indicate a source block group (RBG) scheduled for a terminal through a bitmap, where each bit in the bitmap can be used to indicate whether an RBG is scheduled for the terminal. One RBG can include one or more RBs. Also for example, the access network device schedules a plurality of consecutive RBs for a terminal, and the access network device can indicate to the terminal a first RB in the plurality of RBs and a number of RBs in the plurality of RBs.

[0083] 5、Symbol:

[0084] A symbol can be a unit of time domain resource; in other words, a symbol can be a time unit. For example, a symbol can be an orthogonal frequency division multiplexing (OFDM) symbol.

[0085] 6、Unit of time domain resource:

[0086] Time domain resource can be allocated in units of a TTI, that is, time domain resource is allocated in units of subframes. The minimum unit of scheduling within a TTI actually consists of 2 RBs (one RB per slot) that are connected in time on the same subframe, and is referred to as an RB pair. One slot can include multiple symbols. For example, one slot can include 14 OFDM symbols.

[0087] 7、The terms "system" and "network" in the embodiments of the present application can be used interchangeably. "At least one" means one or more, and "multiple" means two or more. The "and / or" describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent the cases of A alone, A and B together, and B alone, where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects. "At least one of the following" or similar expressions means any combination of these items, including any combination of single or multiple items. For example, "at least one of A, B and C" includes A, B, C, AB, AC, BC or ABC. In addition, unless otherwise specified, the ordinal numbers "first", "second", etc. mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, time sequence, priority or importance of the multiple objects; "sending information to (a terminal)" can be understood as that the destination of the information is the terminal, which can include directly or indirectly sending information to the terminal. "Receiving information from (a terminal)" can be understood as that the source of the information is the terminal, which can include directly or indirectly receiving information from the terminal. The information between the source and the destination of the information sending can be processed as necessary, for example, format change, etc., but the destination can understand the valid information from the source. Similar expressions in the present application can be understood similarly, and will not be repeated here.

[0088] To facilitate understanding of the method provided by the embodiments of the present application, the system architecture of the method provided by the embodiments of the present application will be described below. It can be understood that the system architecture described in the embodiments of the present application is used to more clearly illustrate the technical solutions of the embodiments of the present application, and does not constitute a limitation on the technical solutions provided by the embodiments of the present application.

[0089] To facilitate understanding of the method provided by the embodiments of the present application, Figure 1 a possible, non-limiting system schematic diagram is shown. As Figure 1 shown, the communication system 10 includes a radio access network (RAN) 100 and a core network (CN) 200. Optionally, the communication system 10 can also include the Internet 300.

[0090] The RAN 100 includes at least one RAN node (such as 110a and 110b in Figure 1 , collectively referred to as 110) and at least one terminal (such as 120a-120j in Figure 1 , collectively referred to as 120). Other RAN nodes, such as wireless relay devices and / or wireless backhaul devices (not shown) can also be included in the RAN 100. Figure 1The terminal 120 is connected to the RAN node 110 in a wireless manner. The RAN node 110 is connected to the core network 200 in a wireless or wired manner. The core network device in the core network 200 and the RAN node 110 in the RAN 100 can be different physical devices respectively, or can be the same physical device integrated with the core network logic function and the wireless access network logic function.

[0091] The RAN 100 can be a 3rd generation partnership project (3GPP) related cellular system, for example, a 4G, 5G mobile communication system, or a future evolution system. The RAN 100 can also be an open radio access network (O-RAN or ORAN), a cloud radio access network (CRAN), or a WiFi system. The RAN 100 can also be a communication system that integrates two or more of the above systems.

[0092] The RAN node 110, which can also be referred to as a RAN entity or an access node, etc., constitutes a part of the communication system and helps the terminal to realize wireless access. The RAN nodes 110 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 node 110 and the terminal 120 are opposite, for example, Figure 1 The network element 120i can be a helicopter or a drone, which can be configured as a mobile base station. 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 node 110 and the terminal 120 are sometimes collectively referred to as a communication apparatus, for example Figure 1 The network elements 110a and 110b 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.

[0093] The RAN node can also be referred to as an access network device. In the following, the access network device is used for description unless otherwise specified.

[0094] In a possible scenario, a terminal is assisted by multiple access network devices to implement wireless access, and different access network devices respectively implement part of functions of a base station. For example, an access network device 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, for example, a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, for example, included in a remote radio unit (RRU), an active antenna processing unit (AAU), or a remote radio head (RRH).

[0095] In different systems, the CU (or CU-CP and CU-UP), the DU, or the RU can also have different names, but a person skilled in the art can understand their meanings. For example, in an ORAN system, the CU can also be referred to as an open CU (O-CU), the DU can also be referred to as an open DU (O-DU), the CU-CP can also be referred to as an open CU-CP (O-CU-CP), the CU-UP can also be referred to as an open CU-UP (O-CU-UP), and the RU can also be referred to as an open RU (O-RU). Any of the CU (or CU-CP, CU-UP), the DU, and the 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.

[0096] Based on the above description of the access network device and the terminal, this application proposes several possible application scenarios:

[0097] A possible application scenario can be a satellite communication system, as shown in FIG. 1. The access network device can be a satellite base station, and one base station can serve multiple terminals. For example, the satellite base station transmits downlink data to the terminal, and the terminal transmits uplink data to the satellite base station. Figure 2A

[0098] Another possible application scenario can be an inter-satellite communication system, as shown in FIG. 2. The access network device can be a satellite base station, and one base station can serve multiple terminals. For example, the satellite base station transmits downlink data to the terminal, and the terminal transmits uplink data to the satellite base station. Figure 2B ​As shown. An inter-satellite communication system includes an acquisition, tracking, and pointing (APT) subsystem or a communication subsystem. The communication subsystem is responsible for transmitting inter-satellite information and is the main body of the inter-satellite communication system; the APT system is responsible for acquisition, alignment, and tracking between satellites. It determines the direction of the incoming incident signal (acquisition), adjusts the transmitted wave to aim at the receiving direction (alignment), and continuously adjusts alignment and acquisition throughout the communication process (tracking). For example, access network equipment may include... Figure 2B The communication module and transceiver antenna in the middle.

[0099] Another possible application scenario is for wireless communication systems such as cellular communication, etc. Figure 2C As shown. Access network equipment can be a base station, and one base station can serve multiple terminals, such as... Figure 2C As shown in (a) above; or, a terminal can communicate with multiple base stations, such as... Figure 2C As shown in (b) of the diagram.

[0100] Another possible application scenario is wireless communication systems such as wireless local area networks (WLANs). Figure 2D As shown. Access network devices can be access points (APs), and one AP can serve multiple terminals, such as... Figure 2D As shown in (a) above; or, a terminal can communicate with multiple APs, such as... Figure 2D As shown in (b) of the diagram.

[0101] It should be noted that the communication system described in the embodiments of this application is for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and does not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0102] In the aforementioned communication systems, ISAC is widely considered a key application scenario for future communication systems. In a scenario of integrated communication and sensing, the wireless signal transmitted from the transmitter to the receiver needs to possess both sensing and communication capabilities. Sensing capability refers to the receiver's ability to sense the transmitter's speed, distance, etc., or the speed of obstacles in the transmitter's surrounding environment and their relative positions to the transmitter, based on the wireless signal.

[0103] For example, the transmitting end can allocate communication resources based on source blocks, that is, allocate a certain amount of resources to each user who needs to send sensing signals. These resources are used to carry the sensing signals and then send them. However, in scenarios where speed and other parameters are sensed, the sensing performance is poor because the temporal diversity gain cannot be maximized.

[0104] To this end, in the scenario of communication and perception integration, how to improve the perception performance in the communication system is a technical problem to be solved.

[0105] To solve the above technical problem, the embodiment of the present application provides a communication method. Figure 3 The communication method provided by the embodiment of the present application corresponds to a flowchart. Figure 3 The embodiment of the present application takes the first device, the second device and the third device as the execution subject of the interaction diagram for example to illustrate the method, but the present application does not limit the execution subject of the interaction diagram. For example, Figure 3 In the embodiment and the corresponding embodiment, the execution subject in S301a-S304 is the first device, and the execution subject can also be a chip, a chip system or a processor supporting the first device to implement the method, and can also be a logic module or software capable of implementing all or part of the function of the first device. For example, Figure 3 In the embodiment and the corresponding embodiment, the execution subject in S301a-S304 is the first device, and the execution subject can also be a chip, a chip system or a processor supporting the first device to implement the method, and can also be a logic module or software capable of implementing all or part of the function of the first device. Figure 3 In the embodiment and the corresponding embodiment, the second device in S301a-S304 can also be replaced by a chip, a chip system or a processor supporting the second device to implement the method, and can also be replaced by a logic module or software capable of implementing all or part of the function of the second device. For example, Figure 3 In the embodiment and the corresponding embodiment, the third device in S301a-S304 can also be replaced by a chip, a chip system or a processor supporting the third device to implement the method, and can also be replaced by a logic module or software capable of implementing all or part of the function of the third device.

[0106] Among them, the second device and the third device can be different devices, or the second device and the third device can be the same device. For example, Figure 3 As shown in the method comprises:

[0107] S301a: The first device sends first information.

[0108] Correspondingly, the second device can receive the first information, as shown in S301a in Figure 3

[0109] ​It should be noted that the first information can be used to schedule the first resource for the second device; or the first information can be used to indicate the first resource, which is a resource scheduled for the second device. The first resource includes N orthogonal frequency division multiplexing (OFDM) symbols on a first time slot; or the first resource includes N orthogonal frequency division multiplexing (OFDM) symbols on a first TTL; or the first resource includes N orthogonal frequency division multiplexing (OFDM) symbols in a first time domain, where N is a positive integer, or the time domain interval between adjacent OFDM symbols among the N OFDM symbols is a first interval; the number of OFDM symbols with intervals between adjacent OFDM symbols among the N OFDM symbols is less than a threshold; or the multiple OFDM symbols are equally spaced; or the multiple OFDM symbols are uniformly distributed.

[0110] by Figure 4 For example, the first resource may include multiple OFDM symbols on a slot, and these multiple OFDM symbols include N OFDM symbols, where these N OFDM symbols are... Figure 4 A rectangle filled with black; the OFDM symbols other than these N OFDM symbols are... Figure 4 A white-filled rectangle. Each adjacent OFDM symbol is separated by a white-filled rectangle, which constitutes one OFDM symbol.

[0111] The following section will explain the N OFDM symbols and the first interval.

[0112] In one possible implementation, the total number of OFDM symbols in the total scheduling resources is a first value; or the total number of all OFDM symbols that can be scheduled to carry signals at the current time is a first value, and the total number of OFDM symbols in the scheduling resources is a first value; or the total number of OFDM symbols in the overall resources is a first value; or the total number of OFDM symbols in the candidate scheduling resources is a first value. The first interval is determined based on the ratio of N to the first value, and may be related to the ratio of the first value to N; or, the first device may determine the first interval based on the ratio of the first value to N; or, the first interval may be determined based on the first value and N; or, the first interval may be related to the first value and N; or, the first device may determine the first interval based on the first value and N. For example, if N is 3 and the first value is 7, then the first interval may be determined based on 2. In this method, the first interval between adjacent OFDM symbols among the plurality of OFDM symbols may be determined based on the ratio of the first value to N.

[0113] Based on the above implementation, the first interval between the N OFDM symbols is adapted to the ratio of the N OFDM symbols in the total scheduling resources, so that the N OFDM symbols can be distributed as evenly as possible on the entire time slot according to the ratio, rather than being concentrated on the entire time slot, occupying more time domain resources as much as possible, thereby improving the Doppler resolution and enabling more accurate speed perception.

[0114] For example, assuming that the first device needs to allocate the total scheduling resources to K users, and each user corresponds to n OFDM symbols k (k = 0, 1, … K-1). The number of OFDM symbols of the total scheduling resources, i.e., the first value, is

[0115] The first device needs to determine the target customer among the K users, and the target customer refers to a user who needs to modulate a signal by the following first modulation mode. The number of OFDM symbols allocated by the first device for the target customer is N, and the occupied OFDM symbol ratio is calculated as follows:

[0116] For example, the first interval can satisfy the following formula:

[0117] E = floor(Δ1),

[0118] Wherein, E can be the first interval, the unit can be OFDM symbol; Δ1 can be the ratio of the first value and N; floor represents the down rounding operation.

[0119] For example, if N is 2 and the first value is 14, E can be 7, and the first interval can be 7 OFDM symbols.

[0120] For example, if N is 2 and the first value is 14, E can be 7, and the first interval can be 7 OFDM symbols.

[0121] For example, if N is 3 and the first value is 14, E can be 4, and the first interval can be 4 OFDM symbols.

[0122] Through the example, since the above formula is relatively simple, the first device can quickly determine the first interval. And the first interval calculated by the above formula is as close as possible to the ratio of the N OFDM symbols in the total scheduling resources, so as to cover the entire time slot of the total scheduling resources as much as possible, thereby utilizing the entire time slot as much as possible, which can maximize the time domain diversity gain and improve the performance of speed perception and other parameters.

[0123] Optionally, when E = 1, the scheduling of the perception signal is the scheduling of the continuous OFDM symbols of NR.

[0124] In a possible implementation 1A, the first device schedules resources for S devices, where S is a positive integer. The S devices can include the second device. A position of a first OFDM symbol of the N OFDM symbols can be determined according to a number of devices in the S devices (that is, S); or the position of the first OFDM symbol of the N OFDM symbols is related to the number of devices in the S devices; or the first device can determine the position of the first OFDM symbol of the N OFDM symbols according to the number of devices in the S devices. The position of the first OFDM symbol of the N OFDM symbols can be replaced by: a first OFDM symbol of the N OFDM symbols, or a starting position of the N OFDM symbols. The first OFDM symbol of the N OFDM symbols can be referred to as (or can be replaced by) a starting OFDM symbol of the N OFDM symbols. The first OFDM symbol of the N OFDM symbols can be an OFDM symbol with a minimum time domain length in the N OFDM symbols, or can be an OFDM symbol with a minimum identity (ID) or index in the N OFDM symbols.

[0125] In a possible implementation 1B, the first OFDM symbol of the N OFDM symbols can belong to S OFDM symbols with a minimum time domain length in a first time slot of the total scheduled resources; or the first OFDM symbol of the N OFDM symbols can belong to S OFDM symbols with a minimum ID or index in the first time slot of the total scheduled resources. For example, if the first device schedules resources for three devices, the first OFDM symbol of the N OFDM symbols can belong to three OFDM symbols with a minimum time domain length in the first time slot of the total scheduled resources.

[0126] Optionally, the first device can determine a position of the first OFDM symbol of the N OFDM symbols in the S OFDM symbols according to an order of the second device in a first order of the S devices; or the first device can determine which one of the S OFDM symbols the first OFDM symbol of the N OFDM symbols is according to the order of the second device in the first order. The first order can be an order in which the first device schedules resources for the S devices.

[0127] In some examples, the second device is ranked R in the first order, R being a positive integer less than or equal to S. The first one of the N OFDM symbols can be the Rth one of the S OFDM symbols. For example, the first device schedules resources for devices #1 to #4 in turn. If the second device is device #1, R is 1, and the first one of the N OFDM symbols can be the first one of the four OFDM symbols with the smallest time domain length in the total scheduled resources. If the second device is device #2, R is 2, and the first one of the N OFDM symbols can be the second one of the four OFDM symbols with the smallest time domain length in the total scheduled resources. And so on, which will not be repeated here.

[0128] In other examples, the second device is ranked R in the first order, R being a positive integer less than or equal to S. The first one of the N OFDM symbols can be the S-R+1th one of the S OFDM symbols. For example, the first device schedules resources for devices #1 to #4 in turn. If the second device is device #1, R is 1, and the first one of the N OFDM symbols can be the fourth one of the four OFDM symbols with the smallest time domain length in the total scheduled resources. If the second device is device #2, R is 2, and the first one of the N OFDM symbols can be the third one of the four OFDM symbols with the smallest time domain length in the total scheduled resources. And so on, which will not be repeated here.

[0129] By the above implementation, the first device can quickly determine the position of the first one of the N OFDM symbols according to the number of devices in the S devices.

[0130] Optionally, the above implementation 1A can be replaced by implementation 1A': the first device schedules resources for S devices, S being a positive integer. The S devices can include the second device. The position of the last one of the N OFDM symbols can be determined according to the number of devices in the S devices (i.e., S); in other words, the position of the last one of the N OFDM symbols is related to the number of devices in the S devices; or the first device can determine the position of the last one of the N OFDM symbols according to the number of devices in the S devices.

[0131] The specific content of the implementation manner 1A' can refer to the description of the implementation manner 1A above, except that the first OFDM symbol in the N OFDM symbols is replaced by the last OFDM symbol in the N OFDM symbols, the starting OFDM symbol in the N OFDM symbols is replaced by the ending OFDM symbol in the N OFDM symbols, the starting position of the N OFDM symbols is replaced by the ending position of the N OFDM symbols, the minimum is replaced by the maximum, and details are not described herein again. In this way, the first device can quickly determine the position of the last OFDM symbol in the N OFDM symbols according to the number of devices in the S devices.

[0132] In some examples, the position of the first OFDM symbol in the N OFDM symbols, N, and the first interval between adjacent OFDM symbols in the N OFDM symbols can be used to determine the position of the N OFDM symbols, or the first device can determine the position of the N OFDM symbols according to the position of the first OFDM symbol in the N OFDM symbols, N, and the first interval between adjacent OFDM symbols in the N OFDM symbols. Wherein, the position of the first OFDM symbol in the N OFDM symbols can be determined according to the implementation manner A1, N can be determined according to the implementation manner A1 above, and the first interval can be determined according to the manner of determining the first interval above, and details are not described herein again. For example, if the first OFDM symbol in the N OFDM symbols is the first OFDM symbol in the 4 OFDM symbols with the smallest time domain length on the first time slot in the total scheduling resource, N is 100, and the first interval between adjacent OFDM symbols in the N OFDM symbols is 4 OFDM symbols, then the N OFDM symbols include the 1st, 5th, 9th, …, 397th OFDM symbols on the first time slot in the total scheduling resource.

[0133] In some examples, the position of the last OFDM symbol in the N OFDM symbols, N, and the first interval between adjacent OFDM symbols in the N OFDM symbols can be used to determine the position of the N OFDM symbols; or the first device can determine the position of the N OFDM symbols according to the position of the last OFDM symbol in the N OFDM symbols, N, and the first interval between adjacent OFDM symbols in the N OFDM symbols. The position of the last OFDM symbol in the N OFDM symbols can be determined according to the implementation A1, N can be determined according to the implementation A1' above, and the first interval can be determined according to the above manners of determining the first interval, which will not be repeated. For example, if the total scheduling resource includes 400 OFDM symbols in the first time slot, the last OFDM symbol in the N OFDM symbols is the first one of the 4 OFDM symbols with the largest time domain length in the first time slot of the total scheduling resource, N is 100, and the first interval between adjacent OFDM symbols in the N OFDM symbols is 4 OFDM symbols, then the N OFDM symbols include the 1st, 5th, 9th, …, 397th OFDM symbols in the first time slot.

[0134] Through the above examples, the first device can accurately determine the position of the N OFDM symbols.

[0135] Optionally, the first information can be traditional information, or can be new information, which is not limited. The first information can be broadcast information, or can be unicast information. For example, the first information can be downlink control information (DCI), sidelink control information (SCI), or a media access control control element (MAC CE).

[0136] The following describes how the first information indicates the first resource, which can refer to the following manners.

[0137] Optionally, in the implementation A1, Figure 5A For example, the first information can include a first group of bits, a second group of bits, and a third group of bits.

[0138] Based on the first group of bits, the second group of bits, and the third group of bits, the first device can determine the position of the N OFDM symbols in the first time slot included by the first resource. For example, the first device can determine the position of the N OFDM symbols by one or more of the following implementations 2A to 2C:

[0139] In a possible implementation 2A, the first group of bits can be used to indicate the position of the first OFDM symbol in the N OFDM symbols, the second group of bits can be used to indicate the first interval, and the third group of bits can be used to indicate the position of the last OFDM symbol in the N OFDM symbols.

[0140] For example, the first group of bits is the first two bits, which can be log(A) bits, where A represents the total number of OFDM symbols scheduled as a whole, and the first group of bits is used to indicate the position of the first OFDM symbol in the N OFDM symbols. The second group of bits is the third to sixth bits, which can be log(E) bits, where E is the first interval calculated above, and the second group of bits is used to indicate the interval between adjacent OFDM symbols in the N OFDM symbols. The third group of bits is the seventh to eighteenth bits, which is used to indicate the position of the last OFDM symbol in the N OFDM symbols. Figure 5B

[0141] For example, the number of bits in the first group of bits can be related to the maximum number of devices (denoted as Fmax below) that the first device can schedule, or in other words, the number of bits in the first group of bits can be determined according to Fmax. For example, the number of bits in the first group of bits can be floor(log(Fmax))+1 or ceiling(log(Emax)), where ceiling represents the ceiling operation. For example, if Fmax is 4, the number of bits in the first group of bits can be 2. Fmax can be preconfigured, for example, according to a protocol, or can be determined by the first device, or can be notified to the first device by another device (for example, a core network device). If Fmax is determined by the first device, the first device can also send indication information of Fmax to the second device. If Fmax is notified to the first device by another device (for example, a core network device), the other device or the first device can send indication information of Fmax to the second device.

[0142] ​The number of bits in the second group of bits can be related to a maximum interval (denoted as Emax below) between all schedulable OFDM symbols; or in other words, the number of bits in the second group of bits can be determined according to Emax. For example, the number of bits in the second group of bits can be floor(log(Emax))+1 or ceiling(log(Emax)). For example, if Emax is 274, the number of bits in the second group of bits can be 8. Emax can be pre-configured, e.g., specified in a protocol; or can be determined by the first device; or can be informed to the first device by another device (e.g., a core network device). If Emax is determined by the first device, the first device can also send indication information of Emax to the second device; if Emax is informed to the first device by another device (e.g., a core network device), the other device or the first device can send indication information of Emax to the second device.

[0143] The number of bits in the third group of bits can be related to a fast fourier transform (FFT) size; or in other words, the number of bits in the third group of bits can be determined according to the FFT size. For example, the number of bits in the third group of bits can be log(FFT-size). For example, if the FFT size is 1024, the number of bits in the third group of bits can be 10. For another example, if the FFT size is 2048, the number of bits in the third group of bits can be 11. For yet another example, if the FFT size is 4096, the number of bits in the third group of bits can be 12. The FFT size can be pre-configured, e.g., specified in a protocol; or can be determined by the first device; or can be informed to the first device by another device (e.g., a core network device). If the FFT size is determined by the first device, the first device can also send indication information of the FFT size to the second device; if the FFT size is informed to the first device by another device (e.g., a core network device), the other device or the first device can send indication information of the FFT size to the second device.

[0144] It should be understood that part or all of the number of bits in the first group, the number of bits in the second group, and the number of bits in the third group can also be determined in other manners, as long as the first device and the second device have consistent understanding of the same. For example, the number of bits in the first group can be related to the number of devices (denoted as F below) scheduled by the first device, and the details can be referred to the description of "the number of bits in the first group can be related to the maximum number of devices (denoted as Fmax below) that can be scheduled by the first device" above, except that Fmax is replaced by S, and thus the details are not repeated. Optionally, in this example, the first device can send indication information of S to the second device. For another example, the number of bits in the second group can be related to the first interval (denoted as E below), and the details can be referred to the description of "the number of bits in the second group can be related to the maximum interval (denoted as Emax below)", except that Emax is replaced by E, and thus the details are not repeated. Optionally, in this example, the first device can send indication information of E to the second device. It should be understood that the above examples can be combined or independent of each other.

[0145] In a possible implementation 2B, the first group of bits can be used to indicate the position of the first OFDM symbol in the N OFDM symbols, the second group of bits can be used to indicate the first interval, and the third group of bits can be used to indicate N.

[0146] For example, the first group of bits is the first two bits, which are used to indicate the position of the first OFDM symbol in the N OFDM symbols, the second group of bits is the third to sixth bits, which are used to indicate the interval between adjacent OFDM symbols in the N OFDM symbols, and the third group of bits is the seventh to thirteenth bits, which are used to indicate N. Figure 5C

[0147] For example, the first group of bits is the first two bits, which are used to indicate the position of the first OFDM symbol in the N OFDM symbols, the second group of bits is the third to sixth bits, which are used to indicate the interval between adjacent OFDM symbols in the N OFDM symbols, and the third group of bits is the seventh to thirteenth bits, which are used to indicate N.

[0148] ​Optionally, the number of bits in the third set of bits may be related to the number of OFDM symbols (hereinafter denoted as Fmax) that the first device can schedule for the second device; or, the number of bits in the third set of bits may be determined based on Fmax. Fmax is, for example, the number of OFDM symbols included in the total scheduling resources. For example, the number of bits in the third set of bits may be floor(log(Fmax))+1 or ceiling(log(Fmax)). Fmax may be preset, such as as specified by the protocol; or it may be determined by the first device; or it may be notified to the first device by other devices (e.g., core network devices). If Fmax is determined by the first device, the first device may also send Fmax indication information to the second device; if Fmax is notified to the first device by other devices (e.g., core network devices), the other devices or the first device may send Fmax indication information to the second device.

[0149] In one possible implementation 2C, the first set of bits can be used to indicate the position of the last OFDM symbol among multiple OFDM symbols, the second set of bits can be used to indicate the first interval, and the third set of bits can be used to indicate N.

[0150] by Figure 5D For example, the first group of bits consists of the first 12 bits, which indicate the position of the last OFDM symbol among multiple OFDM symbols. The second group of bits consists of bits 13 to 16, which are used to represent the interval between adjacent OFDM symbols among the N OFDM symbols. The third group of bits consists of bits 17 to 23, which are used to represent N among the N OFDM symbols.

[0151] The specific content of the first group of bits can be found in the description of the third group of bits in Method 2A; the specific content of the second group of bits can be found in the description of the second group of bits in Method 2A; and the specific content of the third group of bits can be found in the description of the third group of bits in Method 2B. Further details will not be provided here.

[0152] In methods 2A to 2C, the specific details of the position of the first OFDM symbol among the plurality of OFDM symbols can be found in the description of the position of the first OFDM symbol among the plurality of OFDM symbols in implementation method 1A; the specific details of the position of the last OFDM symbol among the plurality of OFDM symbols can be found in the description of the position of the last OFDM symbol among the plurality of OFDM symbols in implementation method 1A', and will not be repeated here.

[0153] Optionally, in the manner A1, the first group of bits, the second group of bits and the third group of bits can be continuous or discontinuous. In the first information, the order of the first group of bits, the second group of bits and the third group of bits can have multiple possible manners. For example, the first information includes the first group of bits, the second group of bits and the third group of bits in sequence, as shown in FIG. 3. For another example, the first information includes the second group of bits, the first group of bits and the third group of bits in sequence. For yet another example, the first information includes the third group of bits, the second group of bits and the first group of bits in sequence. It should be understood that the order of the first group of bits, the second group of bits and the third group of bits here is only an example, and other possible manners of the order of the first group of bits, the second group of bits and the third group of bits can also be used without limitation. Figures 5B to 5D

[0154] Optionally, the order of the first group of bits, the second group of bits and the third group of bits can not be limited, i.e., the sequence number or order of each group of bits in one or more time slots can have no order, for example, the second group of bits can be before the third group of bits or after the third group of bits.

[0155] By implementing the manner A1, the first information can accurately indicate the time domain position of the plurality of OFDM symbols through the first group of bits, the second group of bits and the third group of bits. Moreover, the manner provides multiple manners of indicating the time domain position of the plurality of OFDM symbols, and the implementation is more flexible.

[0156] Optionally, in the manner A2, the first information can indicate the first mode, and the first mode can be used to determine the first resource.

[0157] Optionally, at least one mode can correspond to at least one resource pattern. The first information can indicate the first mode. The first mode belongs to the at least one mode, the first mode corresponds to a first resource pattern in the at least one resource pattern, and the first resource can be a resource corresponding (or indicated) to the first resource pattern. The correspondence (hereinafter referred to as the first correspondence) between the at least one mode and the at least one resource pattern can be pre-set, for example, specified by a protocol, determined by the first device, or notified to the first device by another device (for example, a core network device). If the first correspondence is determined by the first device, the first device can also send indication information of the first correspondence to the second device; if the first correspondence is notified to the first device by another device (for example, a core network device), the other device or the first device can send the indication information of the first correspondence to the second device.

[0158] ​Table 1 shows one possible example of the first correspondence. For example, if the first mode is mode 3, the first one of the plurality of OFDM symbols can be the first one of the OFDM symbols on the first time slot in the total scheduled resources, and the interval of the adjacent OFDM symbols in the plurality of OFDM symbols is 4 OFDM symbols, as shown in Table 1. For another example, if the first mode is mode 2, the first one of the plurality of OFDM symbols can be the second one of the OFDM symbols on the first time slot in the total scheduled resources, and the interval of the adjacent OFDM symbols in the plurality of OFDM symbols is 2 OFDM symbols. For example, if the first mode is mode 3, the first one of the plurality of OFDM symbols can be the first one of the OFDM symbols on the first time slot in the total scheduled resources, and the interval of the adjacent OFDM symbols in the plurality of OFDM symbols is 4 OFDM symbols, as shown in Table 1. It should be understood that Table 1 is used as an example to illustrate 7 modes and 7 resource patterns, and the number of modes and resource patterns can be more or less, without limitation.

[0159] Table 1

[0160]

[0161] Optionally, the number of bits (hereinafter referred to as number #1) in the first information for indicating the first mode can be related to the number of modes (hereinafter referred to as number #2) in the at least one mode; or the number #1 can be determined according to the number #2. For example, the number #1 can be floor(log(number #2))+1 or ceiling(log(number #2)). For example, if the number #2 is 4, the number #1 can be 2, i.e. the first information can use 2 bits to indicate the first mode, so as to indicate the plurality of OFDM symbols on the first time slot included by the first resource.

[0162] Optionally, in the mode A2, the mode can be replaced by other names, such as type, index, etc.; and the resource pattern can be replaced by other names, such as pattern.

[0163] Through the mode A2, the first information can accurately indicate the time domain position of the plurality of OFDM symbols by indicating the first mode. And in this mode, the first information can indicate the first mode by fewer bits, so as to save the signaling overhead.

[0164] Optionally, in the mode A1 or the mode A2, the first information can further indicate the first time slot, for example, the first information can be the order of the first time slot in all time slots or the number of the first time slot, etc. In this way, after receiving the first information, the second device can quickly and accurately determine the position of the plurality of OFDM symbols according to the first time slot and the time domain position of the plurality of OFDM symbols.

[0165] S302: The first device can transmit a sensing signal.

[0166] Correspondingly, the second device can transmit the sensing signal.

[0167] It should be noted that the sensing signal can be carried in the plurality of OFDM symbols. The sensing signal can be modulated according to a first modulation mode. Wherein, the amplitudes of different constellation points in the constellation diagram corresponding to the first modulation mode can be equal, in other words, the different constellation points in the constellation diagram corresponding to the first modulation mode are constant modulus; or the difference between the amplitudes of different constellation points in the constellation diagram corresponding to the first modulation mode can be less than or equal to a first threshold value. The first threshold value can be pre-set, for example, specified by a protocol; or can be determined by the first device; or can be notified to the first device by another device (for example, a core network device); or the order of the first modulation mode is less than a second threshold value, the first threshold value can be pre-set, for example, specified by a protocol; or can be determined by the first device; or can be notified to the first device by another device (for example, a core network device). For example, the first modulation mode can be PSK or P-QAM. Wherein, the PSK can be a traditional PSK, for example, the PSK can be one of the following: 2PSK, 4PSK, 16PSK or 64PSK, etc.; or the PSK can be an evolution of the traditional PSK, the name of the evolved PSK can change or not change; or the PSK can be a new PSK.

[0168] In some examples, the first device can send a sensing signal; correspondingly, the second device can receive the sensing signal. Optionally, the first device can also receive the sensing signal (or the echo signal of the sensing signal). That is, the first device can send a sensing signal, and receive the sensing signal (or the echo signal of the sensing signal). In this way, the first device can perform sensing according to the received sensing signal. For example, the first device sends a sensing signal, which is transmitted to a sensing target and can reach the first device after being affected (for example, reflected, diffracted or scattered) by the sensing target. Wherein, the sensing target can be various objects in the environment that can reflect, diffract or scatter electromagnetic waves. For example, the sensing target can be stationary objects such as mountains, forests or buildings, or movable objects such as vehicles, drones, pedestrians or terminal devices, without limitation.

[0169] In other examples, the second device may transmit a sensing signal; correspondingly, the first device may receive the sensing signal. Optionally, the second device may also receive the sensing signal (or the echo signal of the sensing signal). That is, the second device may both transmit and receive the sensing signal (or the echo signal of the sensing signal). In this way, the second device can perform sensing based on the received sensing signal. For example, the second device transmits a sensing signal, which is transmitted to the sensing target and, after being acted upon by the sensing target (e.g., reflected, diffracted, or scattered), can reach the second device.

[0170] Optionally, S302 can be replaced by one of the following: the first device can transmit a sensing signal according to the plurality of OFDM symbols; correspondingly, the second device can transmit the sensing signal according to the plurality of OFDM symbols. Alternatively, the first device can transmit a sensing signal; correspondingly, the second device can transmit the sensing signal. The sensing signal can be carried in a first resource. Alternatively, the first device can transmit a sensing signal according to the first resource; correspondingly, the second device can transmit the sensing signal according to the first resource.

[0171] Optionally, in S302, the sensing signal can be replaced with: data, or modulation symbols containing or carrying data, such as the N OFDM symbols. The data can be used for sensing; or the modulation symbols can be used for sensing.

[0172] The above describes how the first information can be used to schedule the first resource for the second device. Optionally, the first information can also be used to schedule resources for other devices. For details, please refer to the following implementation:

[0173] In one possible implementation, in S301a, the first information can also be used to schedule a second resource for the third device; in other words, the first information is also used to indicate that the second resource is a resource scheduled for the third device. Accordingly, the third device can receive the first information, such as... Figure 3 As shown in S301b, the second resource may include M OFDM symbols on the first time slot, where M is a positive integer. The interval between adjacent OFDM symbols among the M OFDM symbols is the second interval; or the M OFDM symbols are equally spaced; or the M OFDM symbols are uniformly distributed. The second interval and the first interval may be the same or different.

[0174] by Figure 6 For example, the third device is user 2's device, the second device is user 1's device, and the first resource may include multiple OFDM symbols on a slot, and these multiple OFDM symbols include the M OFDM symbols, where the M OFDM symbols are... Figure 6The middle white filled rectangle, the OFDM symbols other than the M OFDM symbols are the aforementioned N OFDM symbols, wherein the N OFDM symbols are Figure 6 The middle black filled rectangle. The M OFDM symbols are adjacent to each other, and the interval between the adjacent OFDM symbols is a black filled rectangle, i.e., one OFDM symbol.

[0175] In this way, Figure 3 The method shown can also include:

[0176] S303: The first device transmits the first data; correspondingly, the third device transmits the first data. The first data can be carried in the M OFDM symbols.

[0177] The first data can be modulated according to a second modulation mode. The second modulation mode can be one of the following, for example: 16QAM, 64QAM, or 256QAM.

[0178] In some examples, the order of the second modulation mode can be greater than or equal to the order of the first modulation mode. For example, the second modulation mode is one of the following: 16QAM, 64QAM, or 256QAM; the first modulation mode is QPSK, the order is 4, and the order of the second modulation mode is greater than the order of the first modulation mode. For another example, the first modulation mode and the second modulation mode are both QPSK, the order of the second modulation mode is equal to the order of the first modulation mode, or the amplitude of the second modulation mode.

[0179] In yet other examples, there are constellation points with a difference in amplitude in the constellation diagram corresponding to the second modulation mode that is less than or equal to a third threshold value. The third threshold value can be pre-set, for example, specified by a protocol; or can be determined by the first device; or can be notified to the first device by another device (for example, a core network device). Optionally, the third threshold value can be greater than or equal to the first threshold value. For example, the second modulation mode is QAM. The QAM can be a traditional QAM, for example, the QAM can be one of the following: 16QAM, 64QAM, or 256QAM; or the QAM can be an evolution of the traditional QAM, the name of the evolved QAM can change or remain unchanged; or the QAM can be a new QAM.

[0180] In other examples, the order of the second modulation mode is greater than or equal to a fourth threshold value, and the third threshold value can be pre-set, for example, specified by a protocol; or can be determined by the first device; or can be notified to the first device by another device (for example, a core network device). Optionally, the fourth threshold value can be greater than or equal to the second threshold value.

[0181] In some implementations, the first device can send the first data; correspondingly, the third device can receive the first data. In some examples, the first data can be used for communication. Optionally, the example can be applicable to at least one of the following cases: the order of the second modulation mode is greater than the order of the first modulation mode; or, there are constellation points in the constellation corresponding to the second modulation mode with a difference in amplitude greater than a third threshold; or, the order of the second modulation mode is greater than or equal to a fourth threshold. In other examples, the first data can be used for sensing. Optionally, the example can be applicable to at least one of the following cases: the order of the second modulation mode is greater than or equal to the order of the first modulation mode; or, there are constellation points in the constellation corresponding to the second modulation mode with a difference in amplitude greater than a third threshold; or, the order of the second modulation mode is greater than or equal to a fourth threshold. Optionally, in the example, the first device can also receive the first data (or the echo signal of the first data). That is, the first device can send the first data, and receive the first data (or the echo signal of the first data). In this way, the first device can perform sensing according to the received first data. For example, the first device sends the first data, which is transmitted to a sensing target, and can reach the first device after being affected (e.g., reflected, diffracted, or scattered) by the sensing target.

[0182] In other implementations, the third device can send the first data; correspondingly, the first device can receive the first data. In some examples, the first data can be used for communication. Optionally, the example can be applicable to at least one of the following cases: the order of the second modulation mode is greater than the order of the first modulation mode; or, there are constellation points in the constellation corresponding to the second modulation mode with a difference in amplitude greater than a third threshold; or, the order of the second modulation mode is greater than or equal to a fourth threshold. In other examples, the first data can be used for sensing. Optionally, the example can be applicable to at least one of the following cases: the order of the second modulation mode is greater than or equal to the order of the first modulation mode; or, there are constellation points in the constellation corresponding to the second modulation mode with a difference in amplitude greater than a third threshold; or, the order of the second modulation mode is greater than or equal to a fourth threshold. Optionally, in the example, the first device can also receive the first data (or the echo signal of the first data). That is, the first device can send the first data, and receive the first data (or the echo signal of the first data). In this way, the first device can perform sensing according to the received first data. For example, the first device sends the first data, which is transmitted to a sensing target, and can reach the first device after being affected (e.g., reflected, diffracted, or scattered) by the sensing target.

[0183] Optionally, S303 can be replaced by one of the following: the first device can transmit first data according to the M OFDM symbols; correspondingly, the third device can transmit the first data according to the M OFDM symbols. Alternatively, the first device can transmit first data; correspondingly, the third device can transmit the first data. Wherein, the first data can be carried in the second resource. Alternatively, the first device can transmit first data according to the second resource; correspondingly, the third device can transmit the first data according to the second resource.

[0184] Optionally, the first data can be replaced by modulation symbols containing or carrying the first data, for example, the M OFDM symbols.

[0185] The order of S303 and S302 is not limited.

[0186] In this way, in the case that the order of the second modulation mode is greater than the order of the first modulation mode, the sensing signal modulated by the first modulation mode can be used to guarantee the sensing performance, and the first data modulated by the second modulation mode can be used to guarantee the communication performance, so that the sensing requirement and the communication requirement can be balanced. Moreover, this mode is based on the existing first modulation mode and second modulation mode, for example, the modulation mode combining QPSK and 64-QAM. This mode does not change the modulation mode of data or signal, so it does not need to change the modulation and coding scheme (MCS) table (MCStable), has less impact on the standard, is easy to be adopted by the standard, and is easy to implement. In addition, in this mode, the first resource and the second resource are both scheduled in the granularity of OFDM symbols, so that the resources can be flexibly scheduled for the sensing signal corresponding to the low-order modulation mode (for example, the first modulation mode) and the data corresponding to the high-order modulation mode (for example, the second modulation mode). Compared with the scheme that can only be scheduled in the unit of RB, this mode can control the scheduling of each OFDM symbol, control the interval of the OFDM symbol used to carry the sensing signal and the interval of the OFDM symbol used to carry the data, and realize the uniform distribution of the two types of OFDM symbols in the time slot, so as to fully utilize the time slot resource and improve the sensing and communication performance.

[0187] In the case that the order of the second modulation mode is equal to the order of the first modulation mode, the sensing signal modulated by the first modulation mode and the first data modulated by the second modulation mode can both be used for sensing, so as to further improve the sensing performance.

[0188] In a possible implementation, the second interval is determined according to a ratio of the first value and the M, and details can refer to the description of the first value in S301a, and will not be repeated. Alternatively, the second interval can be related to the ratio of the first value and the M; or the first device can determine the second interval according to the ratio of the first value and the M; or the second interval can be determined according to the first value and the M; or the second interval can be related to the first value and the M; or the first device can determine the second interval according to the first value and the M. For example, if the M is 7 and the first value is 14, the second interval can be determined according to 2. In this way, the second interval between adjacent OFDM symbols in the M OFDM symbols can be determined according to the ratio of the first value and the M.

[0189] For example, it is assumed that the first device needs to allocate total scheduling resources to K users, and the number of OFDM symbols corresponding to each user is n k (k = 0, 1, …, K-1). The number of OFDM symbols of the total scheduling resources, that is, the first value, is

[0190] The first device needs to determine target customers in the K users, and the target customers refer to users who need to modulate signals by the second modulation mode. The number of OFDM symbols allocated by the first device to the target customers is M, and the ratio of the occupied OFDM symbols is calculated as follows:

[0191] Based on the above manner, the first interval between the M OFDM symbols is adapted to the ratio of the M OFDM symbols in the total scheduling resources, so that the M OFDM symbols can be distributed as evenly as possible on the entire time slot according to the ratio, instead of being concentrated on the entire time slot. On the one hand, the time slot resources can be better utilized for communication, and on the other hand, the influence of the scheduling of the second resources on the scheduling of the first resources can be avoided, and the first resources are used for transmitting sensing signals, so that the sensing demand and the communication demand can be balanced.

[0192] For example, the second interval can satisfy the following formula:

[0193] F = floor(Δ2),

[0194] wherein F can be the second interval, the unit can be OFDM symbol; Δ2 can be the ratio of the first value and the M; floor can represent the down rounding operation.

[0195] For example, if the M is 14 and the first value is 28, F can be 8, and the second interval can be 2 OFDM symbols.

[0196] For another example, if the M is 8 and the first value is 14, F can be 1, and the second interval can be 1 OFDM symbol.

[0197] Through the above example, since the above formula is relatively simple, the first device can quickly determine the second interval. And the first interval calculated by the above formula is as close as possible to the ratio of the M OFDM symbols in the total scheduling resources, so as to fill the entire time slot of the total scheduling resources as much as possible, so as to utilize the entire time slot as much as possible, and the time domain diversity gain maximization can be realized, so as to improve the communication performance.

[0198] Optionally, if the second interval is 1 OFDM symbol, the M OFDM symbols can be continuous, or in other words, the M OFDM symbols are continuous in the time domain.

[0199] Optionally, the specific content of the M OFDM symbols can refer to the description of the N OFDM symbols in S301a, except that the N OFDM symbols are replaced by the M OFDM symbols, and the second device is replaced by the third device, which will not be repeated here.

[0200] The following describes how the first information indicates the second resource, which can refer to the following ways:

[0201] Optionally, in mode B1, as shown in Figure 7A The first information can include: a fourth group of bits, a fifth group of bits, and a sixth group of bits.

[0202] As described above, the first information can indicate the second resource, and the indication mode can be various, for example, implementation mode 3A or implementation mode 3B.

[0203] Optionally, the fourth group of bits, the fifth group of bits, and the sixth group of bits can be used to indicate the M OFDM symbols. In this way, the third device can determine the position of the M OFDM symbols in the first time slot according to the four groups of bits, the fifth group of bits, and the sixth group of bits, that is, determine the position of the M OFDM symbols in the time domain.

[0204] The fourth group of bits, the fifth group of bits, and the sixth group of bits can indicate the M OFDM symbols in various ways, for example, one or more of modes 3A to 3C can be used.

[0205] In one possible implementation mode 3A: the fourth group of bits can be used to indicate the position of the first OFDM symbol in the M OFDM symbols, the fifth group of bits can be used to indicate the second interval, and the sixth group of bits can be used to indicate the position of the last OFDM symbol in the M OFDM symbols.

[0206] In Figure 7BFor example, the fourth group of bits is the first bit, which is used to indicate the position of the first OFDM symbol among the M OFDM symbols; the fifth group of bits is the 2nd to 5th bits, which is used to indicate the interval between adjacent OFDM symbols among the M OFDM symbols; the sixth group of bits is the 6th to 19th bits, which is used to indicate the position of the last OFDM symbol among the M OFDM symbols.

[0207] In one possible implementation 3B: the fourth set of bits can be used to indicate the position of the first OFDM symbol among the M OFDM symbols, the fifth set of bits can be used to indicate the second interval, and the sixth set of bits can be used to indicate M.

[0208] by Figure 7C For example, the fourth group of bits is the first bit, which is used to indicate the position of the first OFDM symbol among the M OFDM symbols; the fifth group of bits is the 2nd to 5th bits, which is used to indicate the interval between adjacent OFDM symbols among the M OFDM symbols; the sixth group of bits is the 6th to 12th bits, which is used to indicate the M.

[0209] In one possible implementation 3C: the fourth set of bits can be used to indicate the position of the last OFDM symbol among the M OFDM symbols; the fifth set of bits can be used to indicate the second interval; and the sixth set of bits can be used to indicate M.

[0210] by Figure 7C For example, the fourth group of bits consists of the first 13 bits, which are used to indicate the position of the last OFDM symbol in the M OFDM symbols. The fifth group of bits consists of the 14th to 17th bits, which are used to indicate the interval between adjacent OFDM symbols in the M OFDM symbols, i.e., the second interval. The sixth group of bits consists of the 18th to 24th bits, which are used to indicate the M.

[0211] The specific contents of the fourth, fifth, and sixth bit groups can be found in the descriptions of the first, second, and third bit groups in method a1, respectively. The only difference is that the first bit group is replaced by the fourth bit group, the second bit group by the fifth bit group, the third bit group by the sixth bit group, N OFDM symbols are replaced by M OFDM symbols, the first interval is replaced by the second interval, and the second device is replaced by the third device. Further details are omitted here. Additionally, in the first information, the order of any bit group from the fourth, fifth, and sixth bit groups relative to any bit group from the first, second, and third bit groups is not restricted.

[0212] By means B1, the first information can accurately indicate the time domain positions of the M OFDM symbols through the fourth group of bits, the fifth group of bits and the sixth group of bits. And, the means provides multiple ways of indicating the time domain positions of the M OFDM symbols, which is more flexible.

[0213] Optionally, in means B2, the first information can indicate a second mode, and the second mode can be used to determine the second resource.

[0214] The specific content of means B2 can refer to means A2, except that the first mode is replaced by the second mode, the first resource is replaced by the second resource, and the second device is replaced by the third device, which will not be repeated here.

[0215] By means B2, the first information can accurately indicate the time domain positions of the M OFDM symbols included in the second resource by indicating the second mode. And, in this means, the first information can indicate the second mode through fewer bits, thereby saving signaling overhead.

[0216] Optionally, in means B1 or means B2, the first information can also indicate a first time slot. In this way, after receiving the first information, the third device can quickly and accurately determine the positions of the M OFDM symbols according to the first time slot and the time domain positions of the M OFDM symbols.

[0217] In some examples, the first information can be information broadcast by the first device. In this example, the first information can include: information for indicating the first resource (hereinafter referred to as information #1), and information for indicating the second resource (hereinafter referred to as information #2). The information #1 and the information #2 can be carried in the same message, or can be carried in different messages, which is not limited. If the information #1 and the information #2 are carried in different messages, the sending order of the information #1 and the information #2 is not limited.

[0218] In other examples, the first information can be information unicast by the first device. For example, the first information can be information sent by the first device to the second device. In this example, the first information can also be used to schedule the second resource for the third device, which can be replaced by: the first device sends second information; correspondingly, the third device receives the second information, and the second information can be used to schedule the second resource for the third device, in other words, the second information can be used to indicate the second resource, and the second resource is the resource scheduled for the third device. The specific content of the second information for indicating the second resource can refer to the above description of the first information for indicating the second resource, which will not be repeated here. The order of the first device sending the second information and the first device sending the first information is not limited.

[0219] In a possible implementation, the first information is further used for scheduling a third resource, or the first information is used for indicating the third resource, the third resource being a resource scheduled for a fourth device. Accordingly, the third device can receive the first information, as shown in S301c in Figure 3 . The third resource includes K OFDM symbols on the first time slot, K being a positive integer, each of the K OFDM symbols being adjacent to one of the N OFDM symbols; or each of the K OFDM symbols forming a group with one of the N OFDM symbols.

[0220] For example, refer to Figure 8 , the third resource can include a plurality of OFDM symbols on one slot, and the plurality of OFDM symbols include symbols for carrying a Demodulation Reference Signal (DMRS), i.e., the K OFDM symbols, and the plurality of OFDM symbols include symbols for carrying QPSK, i.e., the N OFDM symbols. Figure 8 , the plurality of OFDM symbols include symbols for carrying a Demodulation Reference Signal (DMRS), i.e., the K OFDM symbols, and the plurality of OFDM symbols include symbols for carrying QPSK, i.e., the N OFDM symbols. Figure 8 , the plurality of OFDM symbols include symbols for carrying a Demodulation Reference Signal (DMRS), i.e., the K OFDM symbols, and the plurality of OFDM symbols include symbols for carrying QPSK, i.e., the N OFDM symbols. Figure 8 , the plurality of OFDM symbols include symbols for carrying a Demodulation Reference Signal (DMRS), i.e., the K OFDM symbols, and the plurality of OFDM symbols include symbols for carrying QPSK, i.e., the N OFDM symbols.

[0221] Based on the above implementation, by letting each of the K OFDM symbols be adjacent to one of the N OFDM symbols, the adjacent symbols can form a group of two, and then can be scheduled in the form of a group, and the signals carried by the adjacent symbols can also be bound.

[0222] In a possible implementation, the first information includes: position distribution information of a demodulation reference signal, the position distribution information of the demodulation reference signal including information describing positions of the N OFDM symbols; or the first information includes: position index information of a demodulation reference signal, the position index information of the demodulation reference signal including information describing positions of the N OFDM symbols; or the first information includes: a position index table of a demodulation reference signal, the position index table of the demodulation reference signal including a column of information describing positions of the N OFDM symbols.

[0223] For example, refer to Figure 9 , Figure 9 , a position distribution diagram of the DMRS is added with a column of information describing positions of OFDM symbols carrying signals modulated by a first modulation mode.

[0224] In this way, the bearing can be modulated by the first modulation mode to form a two-to-one group with the DMRS, and both are uniformly distributed on the entire slot to improve the sensing performance.

[0225] For example, in the existing NR standard, a column is added to the DMRS position distribution table, which is used to configure the position of the OFDM symbol in the time domain of the QPSK signal.

[0226] In a possible implementation, S302 can include: if at least one OFDM symbol in the first resource overlaps with the resource used to transmit the first signal, the first device can transmit the sensing signal in the at least one OFDM symbol, and correspondingly, the second device can transmit the sensing signal in the at least one OFDM symbol. Alternatively, if at least one OFDM symbol in the first resource has an overlapping part with the resource used to transmit the first signal, the first device can transmit the sensing signal in the overlapping part, and correspondingly, the second device can transmit the sensing signal in the at least one OFDM symbol. Alternatively, if at least one OFDM symbol in the first resource has an overlapping part with the resource used to transmit the first signal, the first device can puncture the overlapping part in the resource used to transmit the first signal, and correspondingly, the second device can puncture the overlapping part in the resource used to transmit the first signal. The first signal can include a reference signal and / or a synchronization signal and a physical broadcast channel (PBCH) block (SS / PBCH block, SSB). The reference signal can be a traditional reference signal, for example, the reference signal can be one of the following: PRS, DMRS, PTRS, SRS or CSI-RS; or the reference signal can be an evolution of the traditional reference signal, and the name of the evolved reference signal can change or remain unchanged; or the reference signal can be a new reference signal or a future defined reference signal. The SSB can be a traditional SSB, or it can be an evolution of the traditional SSB, and the name of the evolved SSB can change or remain unchanged.

[0227] For example, as shown in the first row in Table 1, the first resource can include multiple OFDM symbols on symbol 1 filled with slashes; as shown in the second row in Table 1, the resource used to transmit the first signal can include an OFDM symbol on symbol 1 filled with a horizontal line. Figure 10 Figure 12 For example, as shown in the first row in Table 1, the first resource can include multiple OFDM symbols on symbol 1 filled with slashes; as shown in the second row in Table 1, the resource used to transmit the first signal can include an OFDM symbol on symbol 1 filled with a horizontal line. Figure 10 The resources in the first row and the second row in Table 1 are both resources on symbol 1, and the OFDM symbols with the same frequency in the first row and the second row are the same OFDM symbols. The first resource and the resource used to transmit the first signal have an overlapping part, and the overlapping part can be used to transmit the sensing signal. ​

[0228] In this way, if there is an overlapping part between the first resource and the resource used for transmitting the first signal, the overlapping part can be used for transmitting the sensing signal, so as to reduce or avoid the interference between the first signal and the sensing signal. Also, in this way, the overlapping part can be used for transmitting the sensing signal, so as to guarantee the transmission of the sensing signal, and further improve the sensing performance.

[0229] In some implementations, Figure 3 The method can further include:

[0230] S305: The first device can send the first indication information; correspondingly, the second device can receive the first indication information.

[0231] The first indication information can be used to indicate that if at least one OFDM symbol in the first resource overlaps with the resource used for transmitting the first signal, the sensing signal is transmitted in the at least one OFDM symbol. The indication can be in various ways. In some examples, if the value of the first indication information is M (for example, 0 or 1), the first indication information can be used to indicate that if at least one OFDM symbol in the first resource overlaps with the resource used for transmitting the first signal, the sensing signal is transmitted in the at least one OFDM symbol. In other examples, the first indication information can be a message specially used to indicate that if at least one OFDM symbol in the first resource overlaps with the resource used for transmitting the first signal, the sensing signal is transmitted in the at least one OFDM symbol.

[0232] The first indication information can be carried in a conventional message, or can also be carried in a new message. The first indication information can be broadcast information, or can be unicast information. For example, the first indication information can be carried in DCI, SCI or MAC CE. The first indication information and the first information can be carried in the same message, or can be carried in different messages. If the first indication information and the first information are carried in different messages, the order of S305 and S301a is not limited.

[0233] Optionally, S305 can be before S302.

[0234] In this implementation, the second device can accurately determine, according to the first indication information, that if at least one OFDM symbol in the first resource overlaps with the resource used for transmitting the first signal, the sensing signal is transmitted in the at least one OFDM symbol. Also, since the first indication information is sent by the first device, the flexibility of the first device in managing (or configuring) the second device can be improved.

[0235] In some other implementations, it can be pre-configured (e.g., specified in a protocol) that if at least one OFDM symbol in the first resource overlaps with the resource used for transmitting the first signal, the sensing signal is transmitted in the at least one OFDM symbol. In this way, the first device and the second device do not need to transmit information indicating that if at least one OFDM symbol in the first resource overlaps with the resource used for transmitting the first signal, the sensing signal is transmitted in the at least one OFDM symbol, thereby saving signaling overhead.

[0236] In the method shown in FIG. 6, the sensing signal is modulated by using the first modulation manner. Since the amplitudes of different constellation points in the constellation corresponding to the first modulation manner are equal, or the difference between the amplitudes of different constellation points in the constellation corresponding to the first modulation manner is less than or equal to the first threshold, the amplitudes of different constellation points in the constellation corresponding to the first modulation manner are not greatly different, and the sidelobe energy of the corresponding distance ambiguity function is low, thereby reducing interference to other targets and improving sensing performance. Figure 3 In addition, in the method, the granularity in scheduling the resource is an OFDM symbol rather than an RB, thereby improving the precision in scheduling the time domain resource for transmitting the sensing signal and avoiding the case that the granularity is too large to control the scheduling of each OFDM symbol. In addition, in the method, the interval of the OFDM symbols for transmitting the sensing signal is a fixed interval, and therefore the OFDM symbols for transmitting the sensing signal are uniformly distributed in the time domain, which can cover the entire time domain as much as possible, i.e., the time domain resource occupied by the sensing signal is maximized as much as possible. Therefore, when sensing the speed, etc., the method can improve the Doppler resolution and improve the measurement accuracy of the speed, etc., thereby improving the sensing performance of the speed, etc.

[0237] The following takes the first modulation manner as QPSK and the second modulation manner as 64QAM as an example to describe the effect of the method shown in FIG. 6.

[0238] Figure 3 The method shown in FIG. 7 schedules resources for the second device and the third device. The first resource scheduled for the second device includes the resource filled with diagonal lines, which can be used for transmitting the sensing signal, and the sensing signal can be modulated by using QPSK. The second resource scheduled for the third device includes the resource filled with diagonal squares, which can be used for transmitting the first data, and the first data can be modulated by using 64QAM.

[0239] The modulation manner shown in FIG. 7 can be referred to as QPSK+64QAM. Figure 11 Figure 13

[0240] Figure 12 ​​A schematic diagram of sensing performance and communication performance is shown. Among them, the horizontal axis is the signal-to-noise ratio (SNR) in decibels (dB), the larger the SNR, the better the communication performance, the smaller the SNR, the worse the communication performance; the vertical axis is the root mean square error (RMSE) in meters (m), the smaller the RMSE, the better the sensing performance, the larger the RMSE, the worse the sensing performance. Figure 12 The sensing performance and communication performance of three modulation modes are shown in the middle. The three modulation modes are: QPSK+64QAM under the existing NR scheduling method, 8-P-QAM under the existing NR scheduling method, and the time domain symbol level scheduling: QPSK+64QAM proposed in this application. As shown in Figure 12 Compared with QPSK+64QAM under the existing NR scheduling method, the sensing performance achieved by the present application is improved, and the present application can achieve similar effects as 8-P-QAM under the existing NR scheduling method, but, as mentioned earlier, the present application combines existing modulation modes such as QPSK and 64-QAM, and the present application does not change the modulation mode of data or signals, so there is no need to change the modulation and coding scheme (MCS) table (MCS table), and compared with 8-P-QAM, the present application is easier to be adopted by standards.

[0241] The above describes the communication method in the embodiments of the present application, and the communication device in the embodiments of the present application is described below. Please refer to Figure 13 One embodiment of the communication device includes:

[0242] The interface unit 1301 is configured to send first information, the first information is used to schedule a first resource, the first resource includes N orthogonal frequency division multiplexing (OFDM) symbols on a first time slot, N is a positive integer, and the time domain interval between adjacent OFDM symbols in the N OFDM symbols is a first interval; transmit a sensing signal, the sensing signal is carried in the N OFDM symbols, and the sensing signal is modulated according to a first modulation mode, and the amplitude of different constellation points in the constellation diagram corresponding to the first modulation mode is equal, or the difference between the amplitudes of different constellation points in the constellation diagram corresponding to the first modulation mode is less than or equal to a first threshold value;

[0243] The processing unit 1302 is configured to perform operations other than transceiving operations.

[0244] Another embodiment of the communication device includes:

[0245] The interface unit 1301 is configured to transmit first information, the first information being used to schedule a first resource and a third resource, the first resource including N OFDM symbols on a first time slot, N being a positive integer, the third resource including K OFDM symbols on the first time slot, K being a positive integer, each of the K OFDM symbols being adjacent to one of the N OFDM symbols; transmit a sensing signal, the sensing signal being carried in the N OFDM symbols, the sensing signal being modulated according to a first modulation manner, the first modulation manner corresponding to a constellation diagram in which amplitudes of different constellation points are equal, or the first modulation manner corresponding to a constellation diagram in which a difference between amplitudes of different constellation points is less than or equal to a first threshold; and transmit a demodulation reference signal, the demodulation reference signal being carried in the K OFDM symbols.

[0246] The processing unit 1302 is configured to perform operations other than the transceiving operations.

[0247] Another embodiment of the communication apparatus includes:

[0248] The interface unit 1301 is configured to receive first information, the first information being used to schedule a first resource, the first resource including N OFDM symbols on a first time slot, N being a positive integer, time domain intervals between adjacent OFDM symbols in the N OFDM symbols all being a first interval; and transmit a sensing signal, the sensing signal being carried in the N OFDM symbols, the sensing signal being modulated according to a first modulation manner, the first modulation manner corresponding to a constellation diagram in which amplitudes of different constellation points are equal, or the first modulation manner corresponding to a constellation diagram in which a difference between amplitudes of different constellation points is less than or equal to a first threshold.

[0249] The processing unit 1302 is configured to perform operations other than the transceiving operations.

[0250] Another embodiment of the communication apparatus includes:

[0251] The interface unit 1301 is configured to receive first information, the first information being used to schedule a second resource, the second resource including M OFDM symbols on a first time slot, M being a positive integer, time domain intervals between adjacent OFDM symbols in the M OFDM symbols all being a second interval; and transmit first data, the first data being carried in the M OFDM symbols, the first data being modulated according to a second modulation manner, the first data being modulated according to the second modulation manner, an order of the second modulation manner being greater than or equal to an order of a first modulation manner, the first modulation manner corresponding to a constellation diagram in which amplitudes of different constellation points are equal, or the first modulation manner corresponding to a constellation diagram in which a difference between amplitudes of different constellation points is less than or equal to a first threshold.

[0252] The processing unit 1302 is configured to perform operations other than the transceiving operations.

[0253] A further embodiment of the communication apparatus comprises:

[0254] The interface unit 1301 is configured to receive first information, the first information being used to schedule a first resource and a third resource, the first resource comprising N orthogonal frequency division multiplexing, OFDM, symbols in a first time slot, N being a positive integer, the third resource comprising K OFDM symbols in the first time slot, K being a positive integer, each of the K OFDM symbols being adjacent to one of the N OFDM symbols; transmit a sensing signal, the sensing signal being carried in the N OFDM symbols, the sensing signal being modulated according to a first modulation mode, the first modulation mode corresponding to a constellation diagram in which amplitudes of different constellation points are equal, or the first modulation mode corresponding to a constellation diagram in which a difference between amplitudes of different constellation points is less than or equal to a first threshold; and transmit a demodulation reference signal, the demodulation reference signal being carried in the K OFDM symbols.

[0255] The processing unit 1302 is configured to perform operations other than the transceiving operations.

[0256] Next, a communication apparatus provided by an embodiment of the present application is introduced. Referring to Figure 14 , Figure 14 FIG. 1 is a schematic diagram of a structure of a communication apparatus provided by an embodiment of the present application. The communication apparatus can be the first device, the second device, the third device, or the fourth device in the method embodiments, and can also be a chip, a chip system, or a processor, etc. that supports the first device, the second device, the third device, or the fourth device to implement the method. The communication apparatus can be used to implement the method described in the method embodiments, and details can be referred to the description in the method embodiments.

[0257] The communication apparatus can include one or more processors 1401, which are connected to a memory 1402, an input and output unit 1403, and a bus 1404. The processor 1401 can be a general-purpose processor or a special-purpose processor, etc. For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process a communication protocol and communication data, and the central processing unit can be used to control the communication apparatus (such as a base station, a baseband chip, a terminal, a terminal chip, a DU, or a CU, etc.), execute a software program, and process data of the software program.

[0258] Optionally, the communication apparatus can include one or more memories 1402, which can have instructions stored thereon. The instructions can be run on the processor 1401, so that the communication apparatus performs the method described in the method embodiments. Optionally, the memory 1402 can also store data. The processor 1401 and the memory 1402 can be separately arranged or integrated together.

[0259] Optionally, the communication device can further include a transceiver, an antenna. The transceiver can be referred to as a transceiving unit, a transceiver, or a transceiving circuit, etc., and is used to realize the transceiving function. The transceiver can include a receiver and a transmitter. The receiver can be referred to as a receiver or a receiving circuit, etc., and is used to realize the receiving function. The transmitter can be referred to as a transmitter or a transmitting circuit, etc., and is used to realize the transmitting function.

[0260] In another possible design, the processor 1401 can include a transceiver for realizing the receiving and transmitting functions. For example, the transceiver can be a transceiving circuit, or an interface, or an interface circuit. The transceiving circuit, the interface, or the interface circuit for realizing the receiving and transmitting functions can be separate or integrated together. The transceiving circuit, the interface, or the interface circuit described above can be used for reading and writing of codes / data, or the transceiving circuit, the interface, or the interface circuit described above can be used for transmission or delivery of signals.

[0261] In yet another possible design, the processor 1401 can store instructions. The instructions can run on the processor 1401, and can enable the communication device to perform the methods described in the above method embodiments. The instructions can be fixed in the processor 1401. In this case, the processor 1401 can be implemented by hardware.

[0262] In yet another possible design, the communication device can include a circuit. The circuit can realize the functions of transmitting or receiving or communicating of the first device, the second device, the third device, or the fourth device described in the foregoing method embodiments. The processor and the transceiver described in the embodiments of the present application can be implemented on an integrated circuit (IC), an analog IC, an RFIC, a mixed-signal IC, an application-specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processor and the transceiver can also be manufactured by various IC technologies, such as a complementary metal oxide semiconductor (CMOS), an N-type metal oxide semiconductor (NMOS), a P-type metal oxide semiconductor (PMOS), a bipolar junction transistor (BJT), a bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0263] The communication apparatus in the above embodiments can be a first device, a second device, a third device or a fourth device, but the communication apparatus described in the embodiments of the present application is not limited to this, and the structure of the communication apparatus can not be limited by Figure 14 . The communication apparatus can be a stand-alone device or can be part of a larger device. For example, the communication apparatus can be:

[0264] (1) a stand-alone integrated circuit (IC), or chip, or chip system or subsystem;

[0265] (2) a set of one or more ICs, optionally including memory elements for storing data and instructions;

[0266] (3) an ASIC, such as a modem (KSK);

[0267] (4) a module that can be embedded within other devices;

[0268] (5) a receiver, terminal, intelligent terminal, cellular phone, wireless device, handset, mobile unit, vehicle-mounted device, network device, cloud device, artificial intelligence device, etc.;

[0269] (6) and the like.

[0270] For the case where the communication apparatus is a chip or chip system, refer to the structure diagram of the chip shown in Figure 15 . Figure 15 The chip 1500 shown in the structure diagram includes a processor 1501, an interface 1502. Optionally, it can also include a memory 1503. Among them, the number of processors 1501 can be one or more, and the number of interfaces 1502 can be multiple.

[0271] For the case where the chip is used to implement the functions of the network device or terminal device in the embodiments of the present application:

[0272] The interface 1502 is configured to receive or output signals;

[0273] The processor 1501 is configured to perform data processing operations of the network device or terminal device.

[0274] It can be understood that some optional features in the embodiments of the present application can be implemented independently in some scenarios without relying on other features, such as the scheme currently based on, to solve the corresponding technical problems and achieve the corresponding effects. Also, in some scenarios, it can be combined with other features according to the needs. Correspondingly, the communication apparatus given in the embodiments of the present application can also realize these features or functions, which will not be described here.

[0275] It should be understood that the processor in the embodiments of the present application can be an integrated circuit chip with a processing capability of signals. In the implementation process, each step of the method embodiments described above can be completed by an integrated logic circuit of hardware in the processor or an instruction in the form of software. The processor described above can be a general processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (application specific integrated circuit, ASIC), a field programmable gate array (field programmable gate array, FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component.

[0276] It can be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (read-only memory, ROK), a programmable read-only memory (programmable ROK, PROK), an erasable programmable read-only memory (erasable PROK, EPROK), an electrically erasable programmable read-only memory (electrically erasable PROK, EEPROK) or a flash memory. The volatile memory can be a random access memory (random access memory, RAK) used as an external cache. By way of example but not limitation, many forms of RAK are available, such as static random access memory (static RAK, SRAK), dynamic random access memory (dynamic RAK, DRAK), synchronous dynamic random access memory (synchronous DRAK, SDRAK), double data rate synchronous dynamic random access memory (double data rate SDRAK, DDR SDRAK), enhanced synchronous dynamic random access memory (enhanced SDRAK, ESDRAK), synchronous link dynamic random access memory (synchronous link DRAK, SLDRAK) and direct memory bus random access memory (direct RAK bus, DR RAK). It should be noted that the memory of the system and method described herein is intended to include but not limited to these and any other suitable types of memory.

[0277] The embodiments of the present application also provide a computer readable storage medium comprising instructions which, when executed on a computer, cause the computer to perform the method in the foregoing embodiments.

[0278] The embodiment of the present application further provides a computer program product comprising instructions which, when executed on a computer, cause the computer to perform the method in the foregoing embodiment.

[0279] Those skilled in the art can clearly understand that, for the convenience and brevity of 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 described here.

[0280] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other manners. For example, the above-described device embodiments are merely schematic, and the division of the units is merely a logical function division, and there can be another division manner in actual implementation, 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 displayed or discussed mutual couplings or direct couplings or communication connections between the units can be indirect couplings or communication connections through some interfaces, devices or units, and can be electrical, mechanical or in other forms.

[0281] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, can be located in one place, or can be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0282] In addition, each functional unit in the embodiments of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware, or in the form of software functional units.

[0283] The integrated unit, if realized in the form of software functional units and sold or used as an independent product, can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application essentially or the part of the prior art that makes a contribution or the whole or part 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 the embodiments of the present application. The foregoing 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.

[0284] In the foregoing embodiments, all or some of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or some of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or some of the processes or functions according to the embodiments of the present application are 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 transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be transmitted from one website site, computer, server or data center to another website site, computer, server or data center through wired (for example, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (for example, infrared, wireless, microwave, etc.). The computer readable storage medium can be any available medium accessible by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media. The available media can be a magnetic medium (for example, floppy disk, hard disk, magnetic tape), an optical medium (for example, high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, solid state disk (solid state disk, SSD)), etc.

Claims

1. A communication method, characterized in that, include: Send first information, the first information is used to schedule first resources, the first resources include N orthogonal frequency division multiplexing (OFDM) symbols on a first time slot, where N is a positive integer, and the time domain interval between adjacent OFDM symbols among the N OFDM symbols is a first interval; The sensing signal is transmitted and carried in the N OFDM symbols. The sensing signal is modulated according to a first modulation scheme. The amplitudes of different constellation points in the constellation diagram corresponding to the first modulation scheme are equal, or the difference in amplitudes of different constellation points in the constellation diagram corresponding to the first modulation scheme is less than or equal to a first threshold.

2. The method according to claim 1, characterized in that, The first interval is determined based on the ratio of a first value to N, where the first value is the total number of OFDM symbols in the total scheduling resources.

3. The method according to claim 2, characterized in that, The first interval is determined based on the ratio of the first value to N, including: The first interval satisfies the following formula: Ε = floor(Δ1), Where E is the first interval, Δ1 is the ratio of the first value to N, and floor represents the floor operation.

4. The method according to any one of claims 1 to 3, characterized in that, The first information includes: a first set of bits, a second set of bits, and a third set of bits, wherein, The first set of bits is used to indicate the position of the first OFDM symbol among the N OFDM symbols; the second set of bits is used to indicate the first interval; and the third set of bits is used to indicate the position of the last OFDM symbol among the N OFDM symbols; or The first set of bits is used to indicate the position of the first OFDM symbol among the N OFDM symbols, the second set of bits is used to indicate the first interval, and the third set of bits is used to indicate the N; or The first set of bits is used to indicate the position of the last OFDM symbol among the N OFDM symbols, the second set of bits is used to indicate the first interval, and the third set of bits is used to indicate the N.

5. The method according to any one of claims 1 to 4, characterized in that, The first information is also used to schedule a second resource, which includes M OFDM symbols on the first time slot, where M is a positive integer, and the time domain interval between adjacent OFDM symbols among the M OFDM symbols is the second interval. The method further includes: Transmit first data, which is carried in the M OFDM symbols. The first data is modulated according to a second modulation scheme, the order of which is greater than or equal to the order of the first modulation scheme.

6. The method according to claim 5, characterized in that, The second interval is determined based on the ratio of the first value to M.

7. The method according to claim 6, characterized in that, The second interval is determined based on the ratio of the first value to M, including: The second interval satisfies the following formula: F = floor(Δ2), Where F is the second interval, Δ2 is the ratio of the first value to M, and floor represents the floor operation.

8. The method according to any one of claims 5 to 7, characterized in that, The first information includes: the fourth group of bits, the fifth group of bits, and the sixth group of bits, wherein, The fourth set of bits is used to indicate the position of the first OFDM symbol among the M OFDM symbols; the fifth set of bits is used to indicate the second interval; and the sixth set of bits is used to indicate the position of the last OFDM symbol among the M OFDM symbols; or The fourth set of bits is used to indicate the position of the first OFDM symbol among the M OFDM symbols; the fifth set of bits is used to indicate the second interval; and the sixth set of bits is used to indicate the M; or The fourth set of bits is used to indicate the position of the last OFDM symbol among the M OFDM symbols, the fifth set of bits is used to indicate the second interval, and the sixth set of bits is used to indicate the M.

9. The method according to any one of claims 1 to 8, characterized in that, The first information is also used to schedule a third resource, which includes K OFDM symbols on the first time slot, where K is a positive integer, and each of the K OFDM symbols is adjacent to one of the N OFDM symbols. The method further includes: A demodulation reference signal is transmitted, which is carried in the K OFDM symbols.

10. The method according to claim 9, characterized in that, The first information also includes: the position distribution information of the demodulation reference signal, wherein the position distribution information includes: information describing the positions of the N OFDM symbols.

11. A communication method, characterized in that, include: Send first information, which is used to schedule first resources and third resources. The first resource includes N OFDM symbols on a first time slot, where N is a positive integer. The third resource includes K OFDM symbols on the first time slot, where K is a positive integer. Each of the K OFDM symbols is adjacent to one of the N OFDM symbols. Transmit a sensing signal, the sensing signal being carried in the N OFDM symbols, the sensing signal being modulated according to a first modulation scheme, wherein the amplitudes of different constellation points in the constellation diagram corresponding to the first modulation scheme are equal, or the difference in amplitudes of different constellation points in the constellation diagram corresponding to the first modulation scheme is less than or equal to a first threshold. A demodulation reference signal is transmitted, which is carried in the K OFDM symbols.

12. The method according to claim 11, characterized in that, The first information includes: the position distribution information of the demodulation reference signal, wherein the position distribution information includes: information describing the positions of the K OFDM symbols.

13. A communication method, characterized in that, include: Receive first information, the first information is used to schedule first resources, the first resources include N orthogonal frequency division multiplexing (OFDM) symbols on a first time slot, where N is a positive integer, and the time domain interval between adjacent OFDM symbols in the N OFDM symbols is a first interval; The sensing signal is transmitted and carried in the N OFDM symbols. The sensing signal is modulated according to a first modulation scheme. The amplitudes of different constellation points in the constellation diagram corresponding to the first modulation scheme are equal, or the difference in amplitudes of different constellation points in the constellation diagram corresponding to the first modulation scheme is less than or equal to a first threshold.

14. The method according to claim 13, characterized in that, The first interval is determined based on the ratio of a first value to N, where the first value is the total number of OFDM symbols in the total scheduling resources.

15. The method according to claim 14, characterized in that, The first interval is determined based on the ratio of the first value to N, including: The first interval satisfies the following formula: Ε = floor(Δ1), Where E is the first interval, Δ1 is the ratio of the first value to N, and floor represents the floor operation.

16. The method according to any one of claims 13 to 15, characterized in that, The first information includes: a first set of bits, a second set of bits, and a third set of bits, wherein, The first set of bits is used to indicate the position of the first OFDM symbol among the N OFDM symbols; the second set of bits is used to indicate the first interval; and the third set of bits is used to indicate the position of the last OFDM symbol among the N OFDM symbols; or The first set of bits is used to indicate the position of the first OFDM symbol among the N OFDM symbols, the second set of bits is used to indicate the first interval, and the third set of bits is used to indicate the N; or The first set of bits is used to indicate the position of the last OFDM symbol among the N OFDM symbols, the second set of bits is used to indicate the first interval, and the third set of bits is used to indicate the N.

17. A communication method, characterized in that, include: Receive first information, the first information is used to schedule second resources, the second resources include M OFDM symbols on a first time slot, M is a positive integer, and the time domain interval between adjacent OFDM symbols in the M OFDM symbols is the second interval; Transmit first data, which is carried in the M OFDM symbols. The first data is modulated according to a second modulation scheme. The order of the second modulation scheme is greater than or equal to the order of the first modulation scheme. The amplitudes of different constellation points in the constellation diagram corresponding to the first modulation scheme are equal, or the difference in amplitudes of different constellation points in the constellation diagram corresponding to the first modulation scheme is less than or equal to a first threshold.

18. The method according to claim 17, characterized in that, The second interval is determined based on the ratio of a first value to M, where the first value is the total number of OFDM symbols in the total scheduling resources.

19. The method according to claim 18, characterized in that, The second interval is determined based on the ratio of the first value to M, including: The second interval satisfies the following formula: F = floor(Δ2), Where F is the second interval, Δ2 is the ratio of the first value to M, and floor represents the floor operation.

20. The method according to any one of claims 17 to 19, characterized in that, The first information includes: the fourth group of bits, the fifth group of bits, and the sixth group of bits, wherein, The fourth set of bits is used to indicate the position of the first OFDM symbol among the M OFDM symbols; the fifth set of bits is used to indicate the second interval; and the sixth set of bits is used to indicate the position of the last OFDM symbol among the M OFDM symbols; or The fourth set of bits is used to indicate the position of the first OFDM symbol among the M OFDM symbols; the fifth set of bits is used to indicate the second interval; and the sixth set of bits is used to indicate the M; or The fourth set of bits is used to indicate the position of the last OFDM symbol among the M OFDM symbols, the fifth set of bits is used to indicate the second interval, and the sixth set of bits is used to indicate the M.

21. A communication method, characterized in that, include: Receive first information, the first information is used to schedule first resources and third resources, the first resources include N orthogonal frequency division multiplexing (OFDM) symbols on the first time slot, where N is a positive integer, the third resources include K OFDM symbols on the first time slot, where K is a positive integer, and each of the K OFDM symbols is adjacent to one of the N OFDM symbols; Transmit a sensing signal, the sensing signal being carried in the N OFDM symbols, the sensing signal being modulated according to a first modulation scheme, wherein the amplitudes of different constellation points in the constellation diagram corresponding to the first modulation scheme are equal, or the difference in amplitudes of different constellation points in the constellation diagram corresponding to the first modulation scheme is less than or equal to a first threshold. A demodulation reference signal is transmitted, which is carried in the K OFDM symbols.

22. The method according to claim 21, characterized in that, The first information includes: the position distribution information of the demodulation reference signal, wherein the position distribution information includes: information describing the positions of the K OFDM symbols.

23. A communication device, characterized in that, Includes units for performing the method as described in any one of claims 1 to 22.

24. A communication device, characterized in that, Includes a processor for executing computer programs or instructions that cause the apparatus to perform the method as claimed in any one of claims 1 to 22.

25. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program or instructions, which, when executed, implement the method as described in any one of claims 1 to 22.

26. A computer program product, characterized in that, The computer program product includes: computer program code, wherein when the computer program code is run, the method as described in any one of claims 1 to 22 is implemented.

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