Communication method, communication apparatus, communication system and storage medium

Abstract

Disclosed in the embodiments of the present application are a communication method, a communication apparatus, a communication system and a storage medium. The method comprises: sending first configuration information of a first pilot signal, wherein the first configuration information is used for instructing a first device to use the first pilot signal to divide at least one sensing target into X dynamic targets and Y static targets, X and Y being integers greater than or equal to 0; receiving first information, wherein the first information is used for indicating X and / or Y; and sending second configuration information of a second pilot signal, wherein the second configuration information is used for indicating a time-frequency resource for the second pilot signal, and the second configuration information is determined on the basis of the first information. In the embodiments of the present application, the number of dynamic targets and the number of static targets can be determined by means of the first pilot signal, so as to determine the second pilot signal on the basis of a numerical relationship between the dynamic targets and the static targets, such that the second pilot signal better conforms to the actual situation of the sensing target, thereby reducing the waste of time domain units.

Description

Communication method, communication device, communication system and storage medium

[0001] The present application claims priority from the Chinese patent application No. 202411336409.0 filed on September 23, 2024, and entitled "A communication method, a communication device, a communication system and a storage medium", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] Embodiments of the present application relate to the field of communication technology, and in particular to a communication method, a communication device, a communication system and a storage medium. BACKGROUND

[0003] With the large-scale popularity of Internet applications and wireless network devices, people's demand for wireless communication is further increasing. The future communication system will be a system with integrated communication and perception, that is, the communication system will not only have stronger communication capability, but also have the ability of perception. The form of communication and perception integration is diverse, for example, the perception function is completed through the communication signal or the communication is assisted based on the perception result.

[0004] Information is sent from the sending end, passes through the transmission channel and is received at the receiving end. Since the information may change in the transmission channel, it may cause differences between the received information and the sent information. In order to accurately restore the correct information, it is necessary to understand which changes the information has undergone in the transmission process, so the reference signal (RS) is introduced. Among them, the positioning reference signal (PRS) plays an important role in the downlink positioning process. Based on PRS, the speed of the target or the Doppler caused by the target movement will cause phase rotation between different time units, so the speed of the target can be estimated according to the channel information obtained on different time units. Therefore, the estimation of the speed of the target is related to the number of time domain units corresponding to PRS.

[0005] However, in the current environment perception, for a stationary target, if multiple time domain units are used for estimation, there is a serious problem of waste of time-frequency resources. SUMMARY

[0006] The present application provides a communication method, a communication device, a communication system and a storage medium, which are used for determining the time-frequency resources of pilot signals based on the quantity relationship between dynamic perception targets and static perception targets, thereby reducing the waste of time-frequency resources.

[0007] The first aspect of the present application provides a communication method. Optionally, the execution subject of the method can be a network device, a component or device (such as a processor, a chip, or a chip system) applied to the network device, or a logic module or software (such as a central unit (CU), a distributed unit (DU), or a radio unit (RU)) capable of realizing all or part of the functions of the network device. Taking the network device as an example, the network device sends first configuration information of a first pilot signal. The first configuration information is used to instruct a first device to divide at least one sensing target into X dynamic targets and Y static targets using the first pilot signal, X and Y are integers greater than or equal to 0. The network device receives first information. The first information is used to indicate X and / or Y. The network device sends second configuration information of a second pilot signal. The second configuration information is used to indicate time-frequency resources of the second pilot signal. The second configuration information is determined based on the first information.

[0008] In the embodiments of the present application, the number of dynamic targets and static targets is determined through the first pilot signal, and the second pilot signal is determined based on the number relationship between the dynamic targets and the static targets, so that the second pilot signal is more in line with the actual situation of the sensing target, thereby reducing the waste of time domain units and reducing the occurrence of Doppler ambiguity when measuring the speed of the dynamic target.

[0009] Based on the first aspect of the present application, in some possible implementation manners, the first configuration information includes a frequency domain unit number M1 of the first pilot signal and a time domain unit interval K1 of the first pilot signal, and the second configuration information includes a frequency domain unit number M2 of the second pilot signal and a time domain unit interval K2 of the second pilot signal, wherein:

[0010] If the ratio of X to Y is greater than or equal to a first threshold value and the sum of X and Y is greater than or equal to a second threshold value, M2 is less than M1, and K2 is less than K1; or, if the ratio of X to Y is less than the first threshold value or the sum of X and Y is less than the second threshold value, M2 is less than M1, and K2 is greater than K1.

[0011] In the embodiments of the present application, the number relationship between the dynamic targets and the static targets is determined, so that the second pilot signal is more in line with the actual situation of the sensing target, thereby reducing the waste of time domain units and reducing the occurrence of Doppler ambiguity when measuring the speed of the dynamic target.

[0012] Based on the first aspect of the present application, in some possible implementation manners, the network device sends at least one indication information. The indication information is used to instruct the first device to periodically evaluate the distance change of the at least one sensing target using the first pilot signal. The distance change of the at least one sensing target is used by the first device to determine the first information.

[0013] In the embodiments of the present application, based on the positioning accuracy of the first device, different evaluation periods need to be set for different speed perception targets. By sending the indication information, the receiver of the indication information can evaluate the position change of the perception target based on the indication information, thereby dividing the dynamic target and the static target in the perception target, and further obtaining the first information.

[0014] Based on the first aspect of the present application, in some possible embodiments, the at least one piece of indication information includes first indication information, the first indication information includes a first evaluation period t1 and an evaluation number n1, the first evaluation period is used to indicate the transmission period of the first pilot signal, and the evaluation number is used to indicate the transmission number of the first pilot signal, t1 is an integer multiple of the time domain unit interval K1 of the first pilot signal.

[0015] In the embodiments of the present application, by determining different indication information, the first device is instructed to evaluate the perception target based on different speeds, thereby accurately dividing the dynamic target and the static target in the perception target, and improving the accuracy of perception.

[0016] Based on the first aspect of the present application, in some possible embodiments, the evaluation period of each piece of indication information in the at least one piece of indication information is different, and the at least one piece of indication information further includes second indication information, the second indication information includes a second evaluation period t2, wherein:

[0017] If the evaluation number of each piece of indication information in the at least one piece of indication information is the same, the ratio of t2 to t1 is a, and a is an integer greater than or equal to 10.

[0018] In the embodiments of the present application, the evaluation periods of different indication information are different by at least 10 times, thereby being able to perceive the perception target based on different speeds, and improving the perception accuracy.

[0019] The second aspect of the present application provides a communication method. Optionally, the execution subject of the method can be a first device, which can be an access network device, a component or apparatus (for example, a processor, a chip, or a chip system) applied to the access network device, a logic module or software (for example, a CU, a DU, or a RU) capable of realizing all or part of the function of the access network device, a terminal device, a component or apparatus (for example, a processor, a chip, or a chip system) applied to the terminal device, or a logic module or software capable of realizing all or part of the function of the terminal device. In the method, the first device receives first configuration information of a first pilot signal, the first configuration information is used to instruct the first device to divide at least one sensing target into X dynamic targets and Y static targets by using the first pilot signal, X and Y are integers greater than or equal to 0. The first device determines first information based on the first pilot signal and sends the first information, the first information is used to indicate X and / or Y. The first device receives second configuration information of a second pilot signal, the second configuration information is used to indicate time-frequency resources of the second pilot signal, and the second configuration information is determined based on the first information. The first device estimates the speed of the sensing target based on the second pilot signal.

[0020] In the embodiments of the present application, the number of dynamic targets and static targets is determined through the first pilot signal, and the second pilot signal is determined based on the number relationship between the dynamic targets and the static targets, so that the second pilot signal is more in line with the actual situation of the sensing target, thereby reducing the waste of time domain units and reducing the occurrence of Doppler ambiguity when measuring the speed of the dynamic target.

[0021] Based on the second aspect of the present application, in some possible embodiments, the first configuration information includes the number M1 of frequency domain units of the first pilot signal and the time domain unit interval K1 of the first pilot signal, and the second configuration information includes the number M2 of frequency domain units of the second pilot signal and the time domain unit interval K2 of the second pilot signal, where:

[0022] If the ratio of X to Y is greater than or equal to a first threshold value and the sum of X and Y is greater than or equal to a second threshold value, M2 is less than M1 and K2 is less than K1; or, if the ratio of X to Y is less than the first threshold value and the sum of X and Y is less than the second threshold value, M2 is greater than M1 and K2 is greater than K1.

[0023] In the embodiments of the present application, the number relationship between the dynamic targets and the static targets is determined, so that the second pilot signal is more in line with the actual situation of the sensing target, thereby reducing the waste of time domain units and reducing the occurrence of Doppler ambiguity when measuring the speed of the dynamic target.

[0024] In some possible implementation manners based on the second aspect of the present application, the at least one piece of indication information comprises first indication information, and the first indication information comprises a first evaluation period t1 and an evaluation number n1, where t1 is a positive integer multiple of a time domain unit interval K1 of the first pilot signal.

[0025] In the embodiments of the present application, the indication information is sent, so that a receiver of the indication information can evaluate the position change of the sensing target based on the indication information, thereby dividing the dynamic target and the static target in the sensing target, and further obtaining the first information.

[0026] In the embodiments of the present application, based on the positioning accuracy of the first device, different evaluation periods need to be set for sensing targets with different speeds. The indication information is sent, so that a receiver of the indication information can evaluate the position change of the sensing target based on the indication information, thereby dividing the dynamic target and the static target in the sensing target, and further obtaining the first information.

[0027] In some possible implementation manners based on the second aspect of the present application, the at least one piece of indication information comprises first indication information, and the first indication information comprises a first evaluation period t1 and an evaluation number n1, where t1 is a positive integer multiple of a time domain unit interval K1 of the first pilot signal.

[0028] In the embodiments of the present application, different indication information is determined, so as to instruct the first device to evaluate based on sensing targets with different speeds, thereby accurately dividing the dynamic target and the static target in the sensing target, and improving the accuracy of sensing.

[0029] In some possible implementation manners based on the second aspect of the present application, the at least one sensing target comprises a first sensing target, and the first sensing target comprises:

[0030] If the distance change of the first sensing target in the n1 evaluations is greater than or equal to a threshold value, the first sensing target is a dynamic target, and the threshold value is determined based on the positioning accuracy of the first device; or, if the distance change of the first sensing target in the n1 evaluations is less than the threshold value, the first sensing target is a static target.

[0031] In the embodiments of the present application, different threshold values are determined based on different positioning accuracies, so as to divide the dynamic target and the static target based on the threshold values, and improve the accuracy of division.

[0032] In some possible implementation manners based on the second aspect of the present application, the evaluation periods of each piece of indication information in the at least one piece of indication information are different, and the at least one piece of indication information further comprises second indication information, and the second indication information comprises a second evaluation period t2, where:

[0033] If the evaluation times of each piece of indication information in the at least one piece of indication information are same, the ratio of t2 to t1 is a, and a is an integer greater than or equal to 10.

[0034] In the embodiments of the present application, the difference between the evaluation periods of different indication information is at least 10 times, so that perception can be performed based on perception targets with different speeds, and the perception accuracy is improved.

[0035] Based on the second aspect of the present application, in some possible embodiments, the first pilot signal and the second pilot signal are transmitted by the first device using a plurality of different beams.

[0036] In the embodiments of the present application, different precoding is used to transmit the pilot signals on different beams, so that the idle resources of the time-frequency resources can be multiplexed, thereby reducing resource consumption.

[0037] The third aspect of the present application provides a communication device, comprising:

[0038] a processing module configured to generate first configuration information of a first pilot signal;

[0039] an interface module configured to transmit the first configuration information, the first configuration information being used to instruct the first device to divide at least one perception target into X dynamic targets and Y static targets using the first pilot signal, X and Y being integers greater than or equal to 0;

[0040] the interface module is further configured to receive first information, the first information being used to indicate X and / or Y;

[0041] the processing module is further configured to generate second configuration information of a second pilot signal based on the first information;

[0042] the interface module is further configured to transmit the second configuration information, the second configuration information being used to indicate time-frequency resources of the second pilot signal, and the second configuration information being determined based on the first information.

[0043] Based on the third aspect of the present application, in some possible embodiments, the first configuration information includes a frequency domain unit number M1 of the first pilot signal and a time domain unit interval K1 of the first pilot signal, and the second configuration information includes a frequency domain unit number M2 of the second pilot signal and a time domain unit interval K2 of the second pilot signal, wherein:

[0044] If the ratio of X to Y is greater than or equal to a first threshold value and the sum of X and Y is greater than or equal to a second threshold value, M2 is less than M1 and K2 is less than K1; or, if the ratio of X to Y is less than the first threshold value or the sum of X and Y is less than the second threshold value, M2 is less than M1 and K2 is greater than K1.

[0045] Based on the third aspect of the present application, in some possible implementation manners, the interface module is further configured to send at least one indication information, the indication information being used to indicate that the first device periodically evaluates distance changes of the at least one sensing target using the first pilot signal, and the distance changes of the at least one sensing target are used by the first device to determine the first information.

[0046] Based on the third aspect of the present application, in some possible implementation manners, the at least one indication information includes first indication information, the first indication information includes a first evaluation period t1 and an evaluation number n1, the first evaluation period is used to indicate a transmission period of the first pilot signal, the evaluation number is used to indicate a transmission number of the first pilot signal, and t1 is an integer multiple of a time domain unit interval K1 of the first pilot signal.

[0047] Based on the third aspect of the present application, in some possible implementation manners, the evaluation period of each of the at least one indication information is different, and the at least one indication information further includes second indication information, the second indication information includes a second evaluation period t2, wherein:

[0048] If the evaluation number of each of the at least one indication information is the same, then the ratio of t2 to t1 is a, and a is an integer greater than or equal to 10.

[0049] The fourth aspect of the present application provides a communication device, comprising:

[0050] an interface module configured to receive first configuration information of a first pilot signal, the first configuration information being used to indicate that the first device divides at least one sensing target into X dynamic targets and Y static targets using the first pilot signal, X and Y being integers greater than or equal to 0;

[0051] a processing module configured to generate first information;

[0052] the interface module is further configured to send the first information, the first information being used to indicate X and / or Y;

[0053] the interface module is further configured to receive second configuration information of a second pilot signal, the second configuration information being used to indicate time-frequency resources of the second pilot signal, and the second configuration information is determined based on the first information.

[0054] Based on the fourth aspect of the present application, in some possible implementation manners, the first configuration information includes a frequency domain unit number M1 of the first pilot signal and a time domain unit interval K1 of the first pilot signal, the second configuration information includes a frequency domain unit number M2 of the second pilot signal and a time domain unit interval K2 of the second pilot signal, and wherein:

[0055] If the ratio of X to Y is greater than or equal to the first threshold value and the sum of X and Y is greater than or equal to the second threshold value, M2 is less than M1 and K2 is less than K1; or, if the ratio of X to Y is less than the first threshold value and the sum of X and Y is less than the second threshold value, M2 is greater than M1 and K2 is greater than K1.

[0056] Based on the fourth aspect of the present application, in some possible implementation manners, the interface module is further configured to receive at least one piece of indication information, the indication information being used to indicate that the first device periodically evaluates distance changes of the at least one sensing target using the first pilot signal, and the distance changes of the at least one sensing target are used by the first device to determine the first information.

[0057] Based on the fourth aspect of the present application, in some possible implementation manners, the at least one piece of indication information includes first indication information, and the first indication information includes a first evaluation period t1 and an evaluation number n1, t1 being an integer multiple of K1, the time domain unit interval of the first pilot signal.

[0058] Based on the fourth aspect of the present application, in some possible implementation manners, the at least one sensing target includes a first sensing target, and wherein: if the distance change of the first sensing target in the n1 evaluations is greater than or equal to a threshold value, the first sensing target is a dynamic target, the threshold value being determined based on the positioning accuracy of the first device; or, if the distance change of the first sensing target in the n1 evaluations is less than the threshold value, the first sensing target is a static target.

[0059] Based on the fourth aspect of the present application, in some possible implementation manners, the evaluation periods of each piece of indication information in the at least one piece of indication information are different, and the at least one piece of indication information further includes second indication information, and the second indication information includes a second evaluation period t2, wherein:

[0060] If the evaluation numbers of each piece of indication information in the at least one piece of indication information are the same, the ratio of t2 to t1 is a, and a is an integer greater than or equal to 10.

[0061] Based on the fourth aspect of the present application, in some possible implementation manners, the first pilot signal and the second pilot signal are transmitted by the first device using a plurality of different beams.

[0062] The fifth aspect of the embodiments of the present application provides a communication apparatus, which can be a network device or a first device, can be a component (for example, a processor, a chip, or a chip system, etc.) applied to the network device or the first device, can also be a logic module or software (such as a CU, a DU, or a RU, etc.) capable of realizing all or part of the functions of the network device or the first device. The communication apparatus comprises:

[0063] The processor is configured to execute a program, so that the communication apparatus performs the method described in the foregoing first aspect or second aspect and any possible implementation manner thereof.

[0064] Optionally, the communication apparatus further comprises a memory, and the processor is coupled to the memory; and the memory is configured to store programs.

[0065] The sixth 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 interconnected through a line, and the at least one processor is configured to run computer programs or instructions to perform the communication method described in any of the possible implementation manners of the first aspect or the second aspect.

[0066] The communication interface in the chip can be an input / output interface, a pin or a circuit, etc.

[0067] In a possible implementation, the chip or the chip system described above in the present application further comprises at least one memory, and the at least one memory stores instructions. The memory can be a storage unit inside the chip, such as a register, a cache, etc., or a storage unit of the chip, such as a read-only memory, a random access memory, etc.

[0068] The seventh aspect of the present application provides a communication system, which comprises a communication apparatus performing the method according to the first aspect and any of its possible implementation manners, and a communication apparatus performing the method according to the second aspect and any of its possible implementation manners.

[0069] The eighth aspect of the present application provides a computer readable storage medium, which comprises instructions, when the instructions are run on a computer, the computer is caused to perform the method according to the first aspect, or the computer is caused to perform the method according to the second aspect.

[0070] The ninth aspect of the present application provides a computer program product comprising instructions, when the instructions are run on a computer, the computer is caused to perform the method according to the first aspect, or the computer is caused to perform the method according to the second aspect. BRIEF DESCRIPTION OF DRAWINGS

[0071] FIG. 1 is a schematic diagram of one embodiment of positioning reference signal mapping in the embodiment of the present application;

[0072] FIG. 2 is a network structure diagram in the embodiment of the present application;

[0073] FIG. 3 is a possible application scenario of the communication method in the embodiment of the present application;

[0074] FIG. 4 is a schematic diagram of one embodiment of the communication method in the embodiment of the present application;

[0075] FIG. 5 is a schematic diagram of one embodiment of first pilot signal mapping in the embodiment of the present application;

[0076] FIG. 6 is a schematic diagram of one embodiment of mapping of the second pilot signal in the embodiments of the present application;

[0077] FIG. 7 is a schematic diagram of another embodiment of mapping of the second pilot signal in the embodiments of the present application;

[0078] FIG. 8 is a schematic diagram of one embodiment of transmitting the pilot signal by the first device through multiple beams in the embodiments of the present application;

[0079] FIG. 9 is a schematic diagram of one embodiment of the communication apparatus in the embodiments of the present application;

[0080] FIG. 10 is a schematic diagram of another embodiment of the communication apparatus in the embodiments of the present application;

[0081] FIG. 11 is a schematic diagram of another embodiment of the communication apparatus in the embodiments of the present application;

[0082] FIG. 12 is a schematic diagram of another embodiment of the communication apparatus in the embodiments of the present application. DETAILED DESCRIPTION

[0083] The embodiments of the present application provide a communication method, a communication apparatus, a communication system and a storage medium, which are applied to the technical field of communication, and can determine the number of dynamic targets and static targets through the first pilot signal, so as to determine the second pilot signal based on the number relationship between the dynamic targets and the static targets, so that the second pilot signal is more in line with the actual situation of the perception target, thereby reducing the waste of the time domain unit and reducing the situation of Doppler ambiguity when measuring the speed of the dynamic target.

[0084] The embodiments of the present application are described below with reference to the drawings. It is known to those skilled in the art that, with the development of technology and the appearance of new scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0085] The terms "first", "second", and the like in the specification, claims, and drawings of the present application are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the terms used in this way can be interchanged, and this is only a distinguishing way adopted in the description of the embodiments of the present application to describe the objects with the same attribute. In addition, the numbering of the steps in each embodiment introduced in the present application is only to distinguish different steps, and does not limit the sequence of the steps. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, so that the process, method, system, product or equipment including a series of units does not have to be limited to those units, but can include other units not clearly listed or inherent to these processes, methods, products or equipment.

[0086] In the present application, "for indicating" can include for directly indicating and for indirectly indicating. When describing that certain indication information is for indicating A, it can include that the indication information directly indicates A or indirectly indicates A, and does not mean that A must be carried in the indication information.

[0087] In addition, the specific indication manner can also be various existing indication manners, for example but not limited to, the above-mentioned indication manners and various combinations thereof, etc. The specific details of various indication manners can refer to the prior art, and will not be described herein. As can be known from the above, for example, when multiple information of the same type needs to be indicated, the indication manner of different information can not be the same. In the specific implementation process, the required indication manner can be selected according to the specific needs, and the selected indication manner is not limited by the embodiments of the present application, so that the indication manner involved in the embodiments of the present application should be understood as covering various methods that can enable the to-be-indicated party to know the to-be-indicated information.

[0088] In the embodiments of the present application, "when", "in the case of", "if" and the like all refer to the device making corresponding processing under certain objective circumstances, and are not limited by time, and do not require the device to have a judgment action when implemented, nor does it mean that there are other limitations.

[0089] Firstly, some technical terms involved in the embodiments of the present application are introduced.

[0090] 1) Resource unit: time domain unit, frequency domain unit;

[0091] The resource includes two dimensions of time domain resource and / or frequency domain resource. The unit of the time domain resource is the time domain unit, and the unit of the frequency domain resource is the frequency domain unit.

[0092] The time domain unit can be a symbol, a slot, a mini-slot, a sub-frame, a frame, etc.

[0093] The frequency domain unit can be a resource element (RE), a resource block (RB), a channel, a subchannel, a control channel element (CCE), a resource pool, a bandwidth part (BWP), a carrier, a band, etc.

[0094] The time domain units and the frequency domain units above can be combined in any manner. For example, a resource can be a time-frequency unit with a symbol in the time domain and a RE in the frequency domain. For another example, a resource can be a time-frequency unit with a symbol in the time domain and a RB in the frequency domain.

[0095] In embodiments of the present application, the time domain unit in which the sensing signal is transmitted can also be referred to as a transmission occasion of the sensing signal, and the two can be used synonymously.

[0096] 2) Integrated sensing and communication (ISAC):

[0097] Integrated sensing and communication (also referred to as sensing) is an important technical direction. A communication system has sensing capability and implements integrated design of communication and sensing. Integrated sensing and communication has various forms, such as performing sensing functions through communication signals or assisting communication based on sensing results. The functions of sensing include target detection, etc.

[0098] A sensing target (which can also be translated as a sensing object or a sensing object) is also referred to as a sensed target, or simply as a target. The sensing target includes unmanned aerial vehicle (UAV) targets, human targets, automotive vehicle targets, automated guided vehicle targets, objects creating hazards on roads / railways, etc.

[0099] 3) Sensing signal;

[0100] A sensing signal can also be referred to as a signal for sensing, a sensing reference signal, or a reference signal for sensing. The sensing signal can be a signal transmitted alone, a signal transmitted together with a communication signal, or a communication signal used for sensing service.

[0101] The sensing signal can propagate via the path of “sensing transmitter-sensing target-sensing receiver”, via the path of “sensing transmitter-sensing receiver”, or via the path of “sensing transmitter-interference / environment-sensing receiver”. That is, the sensing signal can be the above individual paths, or a combination of the above paths. And what is received at the sensing receiver is the sum signal of the above paths.

[0102] 4) Positioning Reference Signal (PRS):

[0103] PRS is a signal specially designed for wireless positioning, through a specific signal sequence and transmission method, so that the receiving end can accurately determine the position of the signal source. The mapping of PRS is as follows:

[0104] Wherein, represents the offset of the starting symbol of PRS in a slot relative to symbol 0, m represents the number of REs occupied in the time domain, k represents the combination mode of PRS in the frequency domain, and l represents the number of symbol intervals of PRS.

[0105] According to the description in the protocol, PRS supports four combination forms of comb2, comb4, comb6 and comb12 in the frequency domain, and supports four symbol quantity configurations of 2, 4, 6 and 12 in the time domain. Taking comb4 on 4 symbols as an example, as shown in FIG. 1.

[0106] 5) Beam:

[0107] Beam is a kind of communication resource. The beam can be a wide beam, or a narrow beam, or other types of beams, and the technology for forming the beam can be beam forming technology or other technical means. The beam forming technology can be digital beam forming technology, analog beam forming technology and hybrid digital / analog beam forming technology. Different beams can be considered as different resources.

[0108] Beam in NR protocol can be referred to as spatial domain filter, spatial filter, spatial domain parameter, spatial parameter, spatial domain setting, spatial setting, quasi-colocation (QCL) information, QCL assumption, or QCL indication, etc. The beam can be indicated by TCI-state parameter, or indicated by spatial relation parameter. Therefore, in this application, the beam can be replaced by spatial domain filter, spatial filter, spatial domain parameter, spatial parameter, spatial domain setting, spatial setting, QCL information, QCL assumption, QCL indication, TCI-state (including uplink TCI-state and downlink TCI-state), or spatial relation, etc. The above terms are also equivalent to each other. The beam can also be replaced by other terms representing the beam, which is not limited in this application.

[0109] A beam used for transmitting a signal can be referred to as a transmission beam (Tx beam), a spatial domain transmission filter, a spatial transmission filter, a spatial domain transmission parameter, a spatial transmission parameter, a spatial domain transmission setting, or a spatial transmission setting. A downlink beam can be indicated by a TCI-state.

[0110] A beam used for receiving a signal can be referred to as a reception beam (Rx beam), a spatial domain reception filter, a spatial reception filter, a spatial domain reception parameter, a spatial reception parameter, a spatial domain reception setting, or a spatial reception setting. An uplink beam can be indicated by any one of a spatial relation, an uplink TCI-state, a sounding reference signal (SRS) resource (indicating a transmission beam using the SRS). Therefore, the uplink beam can also be replaced by the SRS resource.

[0111] A transmission beam can refer to a distribution of signal strength in different directions in space after a signal is transmitted by an antenna, and a reception beam can refer to a distribution of signal strength in different directions in space of a wireless signal received by an antenna.

[0112] In addition, a beam can be a wide beam, or a narrow beam, or other types of beams. The technology for forming a beam can be a beamforming technology or other technologies. The beamforming technology can be a digital beamforming technology, an analog beamforming technology, a hybrid digital beamforming technology, or a hybrid analog beamforming technology, etc.

[0113] A beam is generally associated with a resource. For example, when performing beam measurement, the network device measures different beams through different resources, and the terminal device feeds back the measured resource quality, so that the network device knows the quality of the corresponding beam. When data transmission, the beam-related information can also be indicated by its corresponding resource. For example, the network device indicates the information of the physical downlink shared channel (PDSCH) beam of the terminal device through the TCI field in the downlink control information (DCI). Optionally, in this application, the network device can be an access network device.

[0114] In one possible implementation, multiple beams with the same or similar communication characteristics are considered as one beam. One beam can include one or more antenna ports for transmitting data channels, control channels, and sounding signals, etc. One or more antenna ports forming a beam can also be regarded as an antenna port set.

[0115] 6) QCL:

[0116] The quasi-co-location relationship is used to indicate that multiple resources have one or more same or similar communication characteristics. For multiple resources with quasi-co-location relationship, the same or similar communication configuration can be used. For example, if two antenna ports have quasi-co-location relationship, the channel large-scale characteristics of one port transmitting one symbol can be inferred from the channel large-scale characteristics of another port transmitting one symbol. The large-scale characteristics can include: delay spread, average delay, Doppler spread, Doppler shift, average gain, reception parameters, terminal device reception beam number, transmission / reception channel correlation, reception angle of arrival, spatial correlation of receiver antenna, main angel-of-arrival (AoA), average angle of arrival, spread of AoA, etc. Specifically, the co-location indication is used to indicate whether at least two groups of antenna ports have co-location relationship, including: the co-location indication is used to indicate whether the channel state information reference signals sent by at least two groups of antenna ports come from the same transmission point, or the co-location indication is used to indicate whether the channel state information reference signals sent by at least two groups of antenna ports come from the same beam group.

[0117] 7) TCI:

[0118] Also referred to as TCI-state. In uplink and downlink transmission, both the network device and the terminal device need to use the correct beam to achieve correct transmission. In downlink transmission, the network device needs to indicate the downlink beam it uses to the terminal device. The terminal device can determine the appropriate receiving beam according to the downlink beam, which is used to receive information from the network device. In uplink transmission, the network device also needs to indicate to the terminal device which uplink beam the terminal device uses to send information to the network device. The network device can determine the uplink beam with better signal quality of the terminal device. Both the uplink beam and the downlink beam can be indicated by the corresponding TCI state. Specifically, the downlink beam can be indicated by the downlink TCI state, and the uplink beam can be indicated by the uplink TCI state.

[0119] In the 3GPP protocol, the network device can indicate the TCI state to the terminal device through the TCI field in the DCI. The size of the TCI field is 3 bits, which can be specifically represented as 8 different field values (codepoints). Each field value of the TCI field can be associated with an index of a TCI state. The index of the TCI state can uniquely identify a TCI state, which can be a downlink TCI state or an uplink TCI state. Each field value of the TCI field can also be associated with two TCI state indexes, which can uniquely identify two TCI states, which can include a downlink TCI state and an uplink TCI state.

[0120] The downlink TCI state includes several parameters, and the terminal device can determine the relevant information of the downlink transmission beam through these parameters, so as to determine the appropriate receiving beam to receive information from the network device. The TCI state is configured by the network device to each terminal device, and the structure of the downlink TCI state is as follows:

[0121] Each TCI state includes one own index (tci-StateId) and two quasi-colocation information (QCL-info). Each QCL-info includes one reference signal resource, which is used to indicate that the downlink transmission of this TCI state should use the same downlink timing, frequency offset or receiving beam as the reference signal resource. The specific value is determined by the type of the QCL-info. There are four types of QCL {typeA, typeB, typeC, typeD}. When the QCL type is typeA, typeB or typeC, the same downlink timing and frequency offset as the reference signal resource should be used for downlink transmission. When the QCL type is typeD, the same receiving beam as the reference signal resource should be used for downlink transmission. Among the above two QCL-infos, one is typeD and the other is typeA or typeB or typeC. The terminal device can determine which receiving beam to use to receive the corresponding downlink transmission through the QCL-info of typeD. The specific execution steps are as follows:

[0122] The network device indicates a certain downlink TCI state to the terminal device through DCI. The terminal device determines the reference signal resource in the QCL information of the downlink TCI state of typeD. The terminal device takes the receiving beam of the reference signal resource as the receiving beam used for downlink transmission. It should be noted that the receiving beam of the reference signal resource is obtained by the terminal device in advance through the beam management process. Through the beam management process, the terminal device can determine which receiving beam is best to receive the reference signal resource, and take the receiving beam as the receiving beam of the reference signal resource.

[0123] The uplink TCI state includes a reference signal resource, which is used to indicate that the uplink transmission of this TCI state should use the same uplink sending beam as the reference signal resource. The terminal device can determine which sending beam to use for uplink transmission through the reference signal resource. In the uplink TCI state, the reference signal resource is not included in the QCL-info, nor is the QCL type distinguished, because it is not necessary to refer to the uplink timing and frequency offset information, but only to the uplink sending beam. The structure of the uplink TCI state is as follows:

[0124] The specific execution steps are as follows:

[0125] The network device indicates a certain uplink TCI state to the terminal device through DCI. The terminal device determines the reference signal resource in the uplink TCI state. The terminal device takes the transmission beam of the reference signal resource as the transmission beam for uplink transmission. It should be noted that the transmission beam of the reference signal resource is obtained by the terminal device in advance through a beam management process.

[0126] The configuration, activation and indication of the TCI state are introduced below.

[0127] TCI-state configuration: The network device configures multiple TCI-states for the terminal device through RRC signaling. These TCI-states all include a typeD QCL-Info. The network device can also configure TCI-states that do not include typeD QCL-info, but these TCI-states are not used for data transmission beam indication, so they are not further described here.

[0128] TCI-state activation: After the network device configures multiple TCI-states, it also needs to activate 8 of them through MAC CE. The 8 TCI-states are one-to-one corresponding to the 8 values of the TCI field in the DCI. That is, which 8 TCI-states correspond to the 8 values of the TCI field in the DCI is determined through the MAC CE.

[0129] TCI state indication: The network device indicates a specific TCI state through the TCI field in the DCI. For example, the value of the TCI field in the DCI sent by the network device to the terminal device is 000, indicating that the data transmission beam adopts the TCI state corresponding to 000. The reference signal contained in the typeD QCL-Info in the TCI state is the channel state information-reference signal (CSI-RS) with index #1, indicating that the data transmission beam is the same as the receiving beam corresponding to the CSI-RS with index #1. The receiving beam corresponding to the CSI-RS with index #1 can be determined through a beam measurement process and is known to the terminal device. Therefore, through the specific value of the TCI field, the terminal device can determine the beam corresponding to the data transmission beam, and thus adopt the corresponding beam to transmit or receive data.

[0130] It should be noted that the three descriptions of TCI state, TCI-state and TCI state in this article can be replaced with each other.

[0131] In this application, the perception reference signal can be a sounding reference signal (SRS), a phase tracking reference signal (PTRS), a demodulation reference signal (DMRS), a downlink positioning reference signal (DL-PRS), or other reference signals, as long as the reference signal is transmitted by the terminal device for the network device to perceive the environment. The specific application does not limit it. In this application, the perception reference signal resource is used for the network device or the terminal device to transmit the perception reference signal.

[0132] Please refer to FIG. 2, the network architecture based on the communication method in the embodiment of the application is described as follows:

[0133] FIG. 2 is a possible, non-limiting system diagram. As shown in FIG. 2, the communication system 10 includes a radio access network (RAN) 100 and a core network (CN) 200. The RAN 100 includes at least one RAN node (such as 110a and 110b in FIG. 2, collectively referred to as 110) and at least one terminal (such as 120a-120j in FIG. 2, collectively referred to as 120). The RAN 100 can also include other RAN nodes, such as wireless relay devices and / or wireless backhaul devices (not shown in FIG. 2), etc. The 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 logical functions of the core network and the radio access network.

[0134] The RAN 100 can be a 3rd Generation Partnership Project (3GPP) -related cellular system, e.g., a 4th Generation Mobile Communication System (4G), a 5th Generation Mobile Communication System (5G) mobile communication system, or a future mobile communication system. The RAN 100 can also be an open radio access network (ORAN), a cloud-radio access network (CRAN), or a wireless fidelity (WiFi) system. The RAN 100 can also be a communication system in which two or more of the above systems are fused.

[0135] The RAN nodes 110, which can also be referred to as access network devices, RAN entities, or access nodes, etc., form part of the communication system 100 and are configured to facilitate wireless access to the communication system 100 by terminals. The RAN nodes 110 in the communication system 100 can be of the same type or of different types. In some scenarios, the roles of the RAN nodes 110 and the terminals 120 are relative, e.g., the network element 120i in Figure 2 can be a helicopter or a drone, which can be configured to be a mobile base station, to the terminals 120j that access the RAN 100 through the network element 120i, the network element 120i is a base station; but to the base station 110a, the network element 120i is a terminal. The RAN nodes 110 and the terminals 120 are sometimes referred to as communication apparatuses, e.g., the network elements 110a and 110b in Figure 2 can be understood as communication apparatuses with base station functionalities, and the network elements 120a-120j can be understood as communication apparatuses with terminal functionalities.

[0136] In a possible scenario, the access network device includes, but is not limited to, an evolved Node B (eNB), a radio network controller (RNC), a Node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (for example, a home evolved Node B, or home Node B, HNB), a baseband unit (BBU), an access point (AP) in a wireless fidelity (WiFi) system, a macro base station, a micro base station, a wireless relay node, a donor node, a radio controller in a CRAN scenario, a wireless backhaul node, a transmission point (TP), or a transmission and reception point (TRP), and the like, and can also be an access network device in a 5G mobile communication system. For example, a next generation NodeB (gNB), a TRP, or a TP in an NR system; or one or a group (including multiple antenna panels) of antenna panels of a base station in a 5G mobile communication system; or the access network device can also be a network node constituting a gNB or a transmission point. For example, a centralized unit (CU), a distributed unit (DU), a centralized unit control plane (CU-CP), a centralized unit user plane (CU-UP), or a radio unit (RU), and the like. The CU and the DU can be separately arranged, or can be included in the same network element, for example, a BBU. The RU can be included in a radio frequency device or a radio frequency unit. For example, in a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH). Or the access network device can also be a server, a wearable device, a vehicle or a vehicle-mounted device, and the like. For example, the access network device in V2X technology can be a road side unit (RSU). It should be understood that the above-mentioned TRP can be a device or module located at the network side of the above-mentioned communication system and having corresponding communication functions.The TRP is usually provided with a communication module, circuit or chip that performs a corresponding communication function. The TRP can be configured with program instructions for the corresponding communication function.

[0137] It should be noted that in different systems, the CU (or CU-CP and CU-UP), DU or RU can also have different names, but those skilled in the art can understand their meanings. For example, in an open radio access network (ORAN) system, the CU can also be referred to as an open centralized unit (O-CU) or an open CU, the DU can also be referred to as an open distributed unit (O-DU), the CU-CP can also be referred to as an open centralized unit control plane (O-CU-CP), the CU-UP can also be referred to as an open centralized unit user plane (O-CU-UP), and the RU can also be referred to as an open radio unit (O-RU). The specific application is not limited. Any one of the CU, CU-CP, CU-UP, DU and RU in the present application can be realized by a software module, a hardware module, or a combination of a software module and a hardware module.

[0138] Optionally, for network elements in the ORAN system, each network element can implement the protocol layer functions shown in Table 1 below.

[0139] Table 1

[0140] It should be noted that in the ORAN system, the access network device in the present application can be one or more network elements in Table 1 above.

[0141] The architecture of the CU and the DU of the access network device will be introduced below. The access network device includes at least one CU and at least one DU. Optionally, the access network device also includes at least one RU.

[0142] The following is introduced by taking an access network device including a CU and a DU as an example. The CU has part of the function of the core network, and the CU can include a CU-CP and a CU-UP. The CU and the DU can be configured according to the protocol layer function of the wireless network they implement. For example, the CU is configured to implement the function of the packet data convergence protocol (PDCP) layer and the protocol layer above (for example, the function of the RRC layer and / or the SDAP layer). The DU is configured to implement the function of the protocol layer below the PDCP layer (for example, the function of the RLC layer, the MAC layer, and / or the physical (PHY) layer). For another example, the CU is configured to implement the function of the protocol layer above the PDCP layer (for example, the function of the RRC layer and / or the SDAP layer), and the DU is configured to implement the function of the protocol layer below the PDCP layer (for example, the function of the RLC layer, the MAC layer, and / or the PHY layer).

[0143] When the CU includes the CU-CP and the CU-UP, the CU-CP is used to implement the control plane function of the CU, and the CU-UP is used to implement the user plane function of the CU. For example, when the CU is configured to implement the function of the PDCP layer, the RRC layer, and the SDAP layer, the CU-CP is used to implement the function of the RRC layer and the control plane function of the PDCP layer, and the CU-UP is used to implement the function of the SDAP layer and the user plane function of the PDCP layer.

[0144] The CU-CP can interact with a network element in the core network for implementing the control plane function. The network element in the core network for implementing the control plane function can be an access and mobility function network element, for example, an AMF in a 5G system. The AMF is used to be responsible for the mobility management in the mobile network, such as the location update of the terminal device, the registration network of the terminal device, the handover of the terminal device, and the like.

[0145] The CU-UP can interact with a network element in the core network for implementing the user plane function. The network element in the core network for implementing the user plane function, for example, a user function (UPF) in a 5G system, is used to be responsible for the forwarding and receiving of data in the terminal device.

[0146] The configuration of the CU and the DU above is merely an example, and the CU and the DU can be configured to have functions as needed. For example, the CU or the DU can be configured to have functions of more protocol layers, or the CU or the DU can be configured to have partial processing functions of the protocol layers. For example, partial functions of the RLC layer and functions of protocol layers above the RLC layer are arranged in the CU, and the remaining functions of the RLC layer and functions of protocol layers below the RLC layer are arranged in the DU. For another example, the functions of the CU or the DU can be divided according to a service type or other system requirements. For example, according to a delay, functions that need to meet a relatively low delay requirement are arranged in the DU, and functions that do not need to meet the delay requirement are arranged in the CU.

[0147] The DU and the RU can cooperate to jointly implement the functions of the PHY layer. One DU can be connected with one or more RUs. The functions of the DU and the RU can be configured in multiple ways according to design. For example, the DU is configured to implement baseband functions, and the RU is configured to implement intermediate radio frequency functions. For another example, the DU is configured to implement high-layer functions in the PHY layer, and the RU is configured to implement low-layer functions in the PHY layer or implement the low-layer functions and radio frequency functions. The high-layer functions in the PHY layer can include a part of functions of the PHY layer that are closer to the MAC layer, and the low-layer functions in the PHY layer can include another part of functions of the PHY layer that are closer to the intermediate radio frequency side.

[0148] It should be noted that the access network device can be a device or apparatus with a chip, or a device or apparatus integrated with a circuit, or a chip, a chip system, a module, or a control unit in the foregoing devices or apparatus, and the specific embodiments are not limited in the present application. It should be noted that in the present application, when referring to the access network device, it can refer to the access network device itself, or refer to a chip, a functional module, or an integrated circuit in the access network device that completes the method provided in the present application, and the specific embodiments are not limited in the present application.

[0149] In another possible scenario, multiple RAN nodes cooperate to assist a terminal to implement wireless access, and different RAN nodes respectively implement part of functions of a base station. For example, a RAN node can be a central unit (CU), a distributed unit (DU), a CU-CP, a CU-UP, or a radio unit (RU), etc. The CU and the DU can be separately arranged, or can also be included in the same network element, for example, in 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).

[0150] In different systems, the CU (or CU-CP and CU-UP), DU or RU can also have different names, but those skilled in the art can understand their meanings. For example, in an ORAN system, the CU can also be referred to as an O-CU (open CU), the DU can also be referred to as an O-DU, the CU-CP can also be referred to as an O-CU-CP, the CU-UP can also be referred to as an O-CU-UP, and the RU can also be referred to as an O-RU. For the convenience of description, the CU, the CU-CP, the CU-UP, the DU and the RU are taken as examples for description in this application. Any one of the CU (or the CU-CP, the 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.

[0151] A terminal can be a device or module with corresponding communication functions and can access the above-mentioned communication system. The terminal can also be referred to as a terminal device, user equipment (UE), mobile station, mobile terminal, etc. The terminal can be widely used in various scenarios, such as device-to-device (D2D), vehicle to everything (V2X) communication, machine-type communication (MTC), internet of things (IOT), virtual reality, augmented reality, industrial control, autonomous driving, remote medical treatment, smart grid, smart home, smart office, smart wear, smart transportation, smart city, etc. The terminal can be a mobile phone, tablet computer, computer with wireless transceiver function, wearable device, vehicle, unmanned aerial vehicle, helicopter, airplane, ship, robot, mechanical arm, smart home device, transport vehicle with wireless communication function, communication module, etc. Embodiments of the present application do not limit the device form of the terminal. The terminal usually has a communication module, circuit or chip for performing corresponding communication functions. The terminal can also be configured with program instructions for performing corresponding communication functions.

[0152] In addition, the embodiments of the present application can also be applicable to other communication technologies facing the future. The network architecture and service scenarios described in the present application are for more clearly illustrating the technical solutions of the present application and do not constitute a limitation on the technical solutions provided by the present application. Those skilled in the art can know that, with the evolution of network architecture and the appearance of new service scenarios, the technical solutions provided by the present application are also applicable to similar technical problems.

[0153] FIG. 3 shows an application scenario to which the embodiments of the present application are applicable. A sensing management function (SMF) network element 301 instructs a sensing device 302 to send a sensing signal to a sensing target 303, and the sensing device 302 determines information of the sensing target based on the sensing signal. The sensing device 302 can be an access network device or a terminal device, and the specific implementation is not limited here. Determining the information of the sensing target can also be referred to as sensing or running a sensing service. Specifically, sensing can include determining at least any one of motion information of the sensing target, motion change information of the sensing target, position information of the sensing target, distance information of the sensing target, speed information of the sensing target, angle information of the sensing target, etc. That is, determining the information of the sensing target can be replaced by determining at least one of the motion information, the motion change information, the position information, the distance information, the speed information, and the angle information.

[0154] Taking PRS as an example, in environmental perception, if PRS is used for global target distance estimation, there is a waste of data amount of RE resources. In addition, for static targets, too many symbols are used for perception, which is a waste of resources, but for dynamic targets, if the number of symbols is too small, it will cause too large Doppler ambiguity.

[0155] Based on this, an embodiment of the present application provides a method. Please refer to FIG. 4, a communication method in an embodiment of the present application includes:

[0156] 401, the SMF sends the first configuration information of the first pilot signal to the first device, and correspondingly, the first device receives the first configuration information of the first pilot signal from the SMF.

[0157] The SMF configures the first pilot signal to obtain the first configuration information of the first pilot signal. The first configuration information includes the number M1 of frequency domain units of the first pilot signal and the time domain unit interval K1 of the first pilot signal. Wherein, a possible mapping mode of the first pilot signal is shown in FIG. 5. Wherein, M1 is the number of REs occupied by the first pilot signal in the time domain, and K1 is the number of symbol intervals of the first pilot signal.

[0158] It should be noted that the first pilot signal shown in FIG. 5 is only an example, and in actual application, M1 and K1 of the first pilot signal can be different from the example in FIG. 5, which is not limited here. As an example, as shown in FIG. 5, M1 is 16 and K1 is 7.

[0159] The SMF sends the first configuration information to the first device to instruct the first device to divide the perception target based on the first pilot signal, so as to obtain the number of dynamic targets and the number of static targets.

[0160] 402, the first device obtains the first information;

[0161] The first device determines the first pilot signal based on the first configuration information. The first device determines the number of dynamic targets and the number of static targets in the perception target by sending the first pilot signal and receiving the reflected signal of the first pilot signal.

[0162] Wherein, the number of dynamic targets is denoted as X, and the number of static targets is denoted as Y, then the first information obtained by the first device can include the following cases:

[0163] 1) the number X of dynamic targets and the number Y of static targets;

[0164] 2) the number X of dynamic targets and the total number X+Y of perception targets;

[0165] 3) the number Y of static targets and the total number X+Y of perception targets;

[0166] 4) the ratio of dynamic targets to the total number of perception targets X / (X+Y);

[0167] 5) the ratio of static targets to the total number of perception targets Y / (X+Y);

[0168] 6) the ratio of dynamic targets to the total number of perception targets X / (X+Y), and the ratio of static targets to the total number of perception targets Y / (X+Y);

[0169] 7) the ratio of dynamic targets to static targets X / Y (for example, when X and Y are not both 0, and the number of static targets is much greater than the number of dynamic targets, or the ratio of dynamic targets to static targets is less than a first threshold, the first device takes the ratio of dynamic targets to static targets as the first information);

[0170] 8) the ratio of static targets to dynamic targets Y / X (for example, when X and Y are not both 0, and the number of static targets is much greater than the number of dynamic targets, or the ratio of dynamic targets to static targets is greater than a first threshold, the first device takes the ratio of static targets to dynamic targets as the first information);

[0171] 9) the total number of perception targets X+Y (for example, when the total number of perception targets is less than a second threshold, the first device takes the total number of perception targets as the first information);

[0172] 10) the ratio of dynamic targets to static targets X / Y, and the total number of perception targets X+Y (for example, when X and Y are not both 0, the first device takes the ratio of dynamic targets to static targets as the first information);

[0173] 11) the ratio of static targets to dynamic targets Y / X, and the total number of perception targets X+Y (for example, when X and Y are not both 0, the first device takes the ratio of static targets to dynamic targets as the first information).

[0174] It should be understood that the first information can include one or more of the above, which is not limited here.

[0175] The first device determines the dynamic targets and static targets in the perception targets based on a threshold. Specifically, the first device performs multiple evaluations on the distance of the perception targets. For example, the first device takes the first evaluation as a baseline, and compares the evaluation results after each subsequent evaluation with the evaluation results of the first evaluation to determine whether the distance of the perception target has changed. The distance can be the distance between the perception target and the perception sending end, or the distance between the perception target and the perception receiving end, which is not limited here. If the distance of the perception target has changed, and the change is greater than the threshold, the perception target is determined to be a dynamic target, otherwise it is determined to be a static target.

[0176] It should be noted that the threshold value is determined by the first device based on the positioning accuracy, and the positioning accuracy is determined by the positioning function and the specific application scenario. The association between the positioning accuracy and the positioning function and the application scenario is shown in Table 2 as follows:

[0177] Table 2: Association between positioning accuracy and positioning function and application scenario

[0178] For example, in an indoor office environment, the threshold value is 0.5 m. In the evaluation process, if it is determined that the distance change of the perception target exceeds 0.5 m, the perception target is a dynamic target.

[0179] 403、The first device sends first information to the SMF, and correspondingly, the SMF receives the first information from the first device.

[0180] The SMF receives the first information, which is used to indicate X and / or Y. The SMF determines the second pilot signal based on the quantity relationship between the dynamic target and the static target.

[0181] In one possible implementation, the ratio of X to Y is greater than or equal to a first threshold value, and the sum of X and Y is greater than or equal to a second threshold value. That is, the ratio of the dynamic target to the static target is greater than or equal to the first threshold value, and the total number of perception targets is greater than or equal to the second threshold value.

[0182] As an example, the ratio of the dynamic target to the static target is greater than or equal to 1 / 5, that is, dynamic target: static target ≥ 1 / 5, and the total number of perception targets is greater than or equal to 5. At this time, the number of dynamic targets exceeds a certain proportion in the total number of perception targets, so the number of frequency domain units of the second pilot signal needs to be less than M1, and the time domain unit interval of the second pilot signal needs to be less than K1.

[0183] The number of frequency domain units of the second pilot signal under this condition is denoted as M21, and the time domain unit interval of the second pilot signal is denoted as K21. M21 is less than M1, and K21 is less than K1, as shown in FIG. 6.

[0184] It should be noted that the second pilot signal shown in FIG. 6 is only an example, and in actual application, the M 21 and K 21 of the second pilot signal can be different from the example in FIG. 6, which is not limited here. As an example, as shown in FIG. 6, M 21 is 4, and K 21 is 5.

[0185] Since the proportion of dynamic targets is high, the second pilot signal uses more symbols, and thus the symbol interval is smaller. In other words, in the same number of time slots, since K21 is less than K1, the second pilot signal uses more symbols. The frequency domain resource occupied by the second pilot signal can be appropriately reduced when the condition is limited. When the first device uses the second pilot signal to perform speed estimation, the estimated static target in the channel can be treated as a background to ensure lower complexity.

[0186] In the embodiments of the present application, the number of dynamic targets and static targets is determined through the first pilot signal, and the second pilot signal is determined based on the number relationship between the dynamic targets and the static targets, so that the second pilot signal is more in line with the actual situation of the perceived target, thereby reducing the waste of time domain units and reducing the case of Doppler ambiguity when measuring the speed of dynamic targets.

[0187] In this condition, the second pilot signal satisfies the following formula:

[0188] In the formula, X represents the number of dynamic targets, Y represents the number of static targets, and X+Y represents the total number of perceived targets. M21 represents the offset of the starting symbol of the second pilot signal relative to symbol 0 in a time slot, M 21 K21 represents the number of REs occupied by the second pilot signal in the time domain, k represents the combination mode of the second pilot signal in the frequency domain, and K 21 K21 represents the symbol interval of the second pilot signal.

[0189] In another possible implementation, the ratio of X to Y is less than a first threshold or the sum of X and Y is less than a second threshold. That is, the ratio of dynamic targets to static targets is less than the first threshold, or the total number of perceived targets is less than the second threshold.

[0190] As an example, the ratio of dynamic targets to static targets is less than 1 / 5, that is, dynamic targets: static targets < 1 / 5, or the total number of perceived targets is less than 5. At this time, the number of static targets is relatively large in the total number of perceived targets, and thus the number of frequency domain units of the second pilot signal needs to be less than M1, and the time domain unit interval of the second pilot signal needs to be greater than K1.

[0191] The number of frequency domain units of the second pilot signal under this condition is denoted as M22, and the time domain unit interval of the second pilot signal is denoted as K22, and M22 is less than M1 and K22 is greater than K1, as shown in FIG. 7. At the same time, M22 needs to be greater than M21.

[0192] It should be noted that the second pilot signal shown in FIG. 7 is only an example, and in actual application, the M 22 and K 22The example in FIG. 7 can be different, and the present disclosure is not limited in this regard. As an example, as shown in FIG. 6, M 22 K1 is 8, and K2 is 12. 22 K1 is 8, and K2 is 12.

[0193] Since the proportion of dynamic targets is low, the number of static targets in the perception target is much larger than the number of dynamic targets, or the total number of perception targets is small, the number of symbols used by the second pilot signal is smaller, so that the symbol interval is larger. In other words, in the same number of time slots, since K22 is greater than K1, the number of symbols used by the second pilot signal is smaller. At this time, the frequency domain resource is more intensive than the time domain resource. When the first device transmits the second pilot signal, the frequency domain resource can be relatively unchanged, and the time domain resource can be appropriately reduced, that is, the symbol interval can be set to be larger.

[0194] In the embodiments of the present application, the number of dynamic targets and static targets is determined through the first pilot signal, so that the second pilot signal is determined based on the number relationship between the dynamic targets and the static targets, so that the second pilot signal is more in line with the actual situation of the perception target, thereby reducing the waste of time domain units.

[0195] In this condition, the second pilot signal satisfies the following formula:

[0196] wherein, M represents the offset of the starting symbol of the second pilot signal in a time slot relative to symbol 0, M 22 K represents the number of REs occupied by the second pilot signal in the time domain, k represents the combination mode of the second pilot signal in the frequency domain, and K 22 represents the number of symbol intervals of the second pilot signal.

[0197] 404. The SMF sends second configuration information of the second pilot signal to the first device, and correspondingly, the first device receives the second configuration information of the second pilot signal from the SMF.

[0198] After the first device receives the second configuration information, the first device determines the second pilot signal based on the second configuration information. The first device uses the second pilot signal to estimate the speed of the perception target, thereby determining the speed of the perception target.

[0199] Optionally, the SMF sends the second configuration information under the above two different conditions to the access network device. The access network device can instruct the terminal device to send different second pilot signals on different beams, as shown in FIG. 8. Among them, the second pilot signals under different conditions are distinguished by the number of REs occupied by the second pilot signal in the time domain.

[0200] When the terminal device has multiple antennas and supports the function of beamforming, the access network device can multiplex the idle resources in the time-frequency resources by different precoding, thereby further reducing resource consumption. In the downlink non-codebook-based precoding, the access network device obtains the information of the downlink channel according to the reciprocity of the uplink and downlink channels through the received uplink SRS sent by the terminal device, and selects the precoding matrix by itself. In the downlink codebook-based precoding, the access network device issues the CSI-RS measurement to the terminal device, the terminal device reports the result of the CSI-RS measurement and includes the precoding matrix indicator (PMI) in the result, and the access network device obtains the precoding matrix through the PMI fed back by the terminal device.

[0201] Optionally, the embodiment shown in FIG. 4 further includes step 401a. Step 401a can be executed after step 401.

[0202] 401a. The SMF sends indication information to the first device, and correspondingly, the first device receives the indication information from the SMF.

[0203] The SMF sends at least one piece of indication information to the first device, which is used to instruct the first device to periodically evaluate the distance change of at least one sensing target using the first pilot signal, so that the first device obtains the first information.

[0204] Optionally, the indication information is carried in RRC signaling, MAC CE or DCI, which is not limited here.

[0205] As an example, the at least one piece of indication information includes first indication information, and the first indication information includes a first evaluation period t1 and an evaluation number n1. The first evaluation period is used to indicate the transmission period of the first pilot signal, and the evaluation number is used to indicate the transmission number of the first pilot signal. t1 is an integer multiple of the time domain unit interval K1 of the first pilot signal. For example, t1 is 100 ms, and n1 is 10. Based on the first indication information, the first device evaluates whether the distance of the sensing target changes every 100 ms, a total of 10 times. The product of t1 and n1 is the processing time length of the first indication information.

[0206] The SMF can send multiple pieces of indication information to the first device. When the evaluation number of each piece of indication information is the same, the evaluation periods of different indication information should be different by at least 10 times. As an example, the at least one piece of indication information includes second indication information, and the second indication information includes a second evaluation period t2. Assuming that t2 / t1 is a, then a is an integer greater than or equal to 10. For example, t2 is 1s.

[0207] As an example, the SMF can send at least three pieces of indication information to the first device, corresponding to the fast target, the medium target and the slow target respectively. For example, the first indication information includes a first evaluation period t1, t1 is 100 ms. The second indication information includes a second evaluation period t2, t2 is 1 s. The third indication information includes a third evaluation period t3, t3 is 10 s. Wherein, the first indication information is used for the fast target, the second indication information is used for the medium target, and the third indication information is used for the slow target, which is not limited here.

[0208] The communication method in the embodiments of the present application is described above, and the communication device in the embodiments of the present application is described below. Referring to FIG. 9, the communication device 900 can be used to execute the process executed by the SMF in the embodiment shown in FIG. 4. For details, please refer to the related description in the foregoing method embodiments. The communication device 900 can be a network device, or a component or device (such as a processor, a chip, or a chip system, etc.) applied to a network device, or a logic module or software capable of realizing all or part of the functions of the network device. The communication device 900 includes an interface module 901 and a processing module 902.

[0209] The processing module 902 is configured to perform data processing. The interface module 901 can realize corresponding communication functions. The interface module 901 can also be referred to as a communication interface or a communication module.

[0210] Optionally, the communication device 900 can further include a storage module, which can be used to store program codes, program instructions and / or data. The processing module 902 can read the instructions and / or data in the storage module, so that the communication device 900 realizes the foregoing method embodiments.

[0211] The communication device 900 can be used to execute the actions performed by the SMF in the foregoing method embodiments. For example, the SMF or a communication module in the SMF, or a circuit or chip responsible for the communication function in the SMF. The communication device 900 can be the SMF or a component configurable to the SMF. The processing module 902 is configured to perform operations related to processing on the SMF side in the foregoing method embodiments. The interface module 901 is configured to perform operations related to receiving on the SMF side in the foregoing method embodiments.

[0212] Optionally, the interface module 901 can include a sending module and a receiving module. The sending module is configured to perform the sending operations in the foregoing method embodiments. The receiving module is configured to perform the receiving operations in the foregoing method embodiments.

[0213] It should be noted that the communication apparatus 900 can include the sending module and not include the receiving module. Alternatively, the communication apparatus 900 can include the receiving module and not include the sending module. Whether the communication apparatus 900 includes the sending module and the receiving module can depend on whether the communication apparatus 900 performs the sending action and the receiving action in the above-mentioned schemes. For example, the communication apparatus 900 is configured to perform the actions performed by the SMF in the embodiment shown in Fig. 4. Details can be referred to the related description in the embodiment shown in Fig. 4, which will not be repeated here.

[0214] For example, the communication apparatus 900 is configured to perform the following scheme.

[0215] The processing module 902 is configured to generate first configuration information of the first pilot signal.

[0216] The interface module 901 is configured to send the first configuration information, and the first configuration information is used to instruct the first device to divide the at least one sensing target into X dynamic targets and Y static targets using the first pilot signal, X and Y are integers greater than or equal to 0.

[0217] The interface module 901 is further configured to receive first information, and the first information is used to indicate X and / or Y.

[0218] The processing module 902 is further configured to generate second configuration information of a second pilot signal based on the first information.

[0219] The interface module 901 is further configured to send the second configuration information, and the second configuration information is used to indicate time-frequency resources of the second pilot signal, and the second configuration information is determined based on the first information.

[0220] In a possible implementation, the first configuration information includes a frequency domain unit number M1 of the first pilot signal and a time domain unit interval K1 of the first pilot signal, and the second configuration information includes a frequency domain unit number M2 of the second pilot signal and a time domain unit interval K2 of the second pilot signal, where:

[0221] If a ratio of X to Y is greater than or equal to a first threshold value and a sum of X and Y is greater than or equal to a second threshold value, M2 is less than M1 and K2 is less than K1; or, if the ratio of X to Y is less than the first threshold value or the sum of X and Y is less than the second threshold value, M2 is less than M1 and K2 is greater than K1.

[0222] In another possible implementation, the interface module 901 is further configured to send at least one indication information, and the indication information is used to instruct the first device to periodically evaluate distance changes of the at least one sensing target using the first pilot signal, and the distance changes of the at least one sensing target are used by the first device to determine the first information.

[0223] In another possible implementation, the at least one piece of indication information includes first indication information, the first indication information includes a first evaluation period t1 and an evaluation number n1, the first evaluation period is used to indicate a transmission period of the first pilot signal, and the evaluation number is used to indicate a transmission number of the first pilot signal, where t1 is an integer multiple of the time domain unit interval K1 of the first pilot signal.

[0224] In another possible implementation, the evaluation periods of each piece of indication information in the at least one piece of indication information are different, and the at least one piece of indication information further includes second indication information, the second indication information includes a second evaluation period t2, where:

[0225] If the evaluation numbers of each piece of indication information in the at least one piece of indication information are the same, a ratio of t2 to t1 is a, and a is an integer greater than or equal to 10.

[0226] It should be understood that specific processes in which the modules perform the corresponding processes described above are described in detail in the method embodiments described above, and thus are not described herein again for the sake of brevity.

[0227] The processing module 902 in the embodiments described above can be implemented by at least one processor or processor-related circuit. The interface module 901 can be implemented by a transceiver or transceiver-related circuit. The interface module 901 can also be referred to as a communication module or a communication interface. The storage module can be implemented by at least one memory.

[0228] Another structural schematic diagram of a communication apparatus according to the embodiments of the present application is shown below. Please refer to FIG. 10. The communication apparatus 1000 can be used to execute the processes performed by the first device in the embodiments shown in FIG. 4, and can be specifically referred to the related descriptions in the method embodiments described above. The communication apparatus 1000 can be an access network device, or a component or apparatus (for example, a processor, a chip, or a chip system) applied to the access network device, or a logic module or software capable of implementing all or part of the functions of the access network device. The communication apparatus can also be a terminal device, or a component or apparatus (for example, a processor, a chip, or a chip system) applied to the terminal device, or a logic module or software capable of implementing all or part of the functions of the terminal device.

[0229] The communication apparatus 1000 includes an interface module 1001 and a processing module 1002.

[0230] The processing module 1002 is configured to perform data processing. The interface module 1001 can implement corresponding communication functions. The interface module 1001 can also be referred to as a communication interface or a communication module.

[0231] Optionally, the communication apparatus 1000 further includes a storage module, which can be used to store program codes, program instructions and / or data. The processing module 1002 can read the instructions and / or data in the storage module, so that the communication apparatus 1000 implements the foregoing method embodiments.

[0232] The communication apparatus 1000 can be used to perform the actions performed by the first device in the foregoing method embodiments. For example, the first device or a communication module in the first device, or a circuit or chip responsible for communication functions in the first device. The communication apparatus 1000 can be the first device or a component configurable to the first device. The processing module 1002 is configured to perform processing-related operations on the first device side in the foregoing method embodiments. The interface module 1001 is configured to perform receiving-related operations on the first device side in the foregoing method embodiments.

[0233] Optionally, the interface module 1001 can include a sending module and a receiving module. The sending module is configured to perform the sending operations in the foregoing method embodiments. The receiving module is configured to perform the receiving operations in the foregoing method embodiments.

[0234] It should be noted that the communication apparatus 1000 can include the sending module and not include the receiving module. Alternatively, the communication apparatus 1000 can include the receiving module and not include the sending module. Specifically, whether the sending module and the receiving module are included in the communication apparatus 1000 can depend on whether the sending actions and the receiving actions are included in the foregoing schemes performed by the communication apparatus 1000. For example, the communication apparatus 1000 is configured to perform the actions performed by the first device in the embodiment shown in FIG. 4. Details can be referred to the related description in the embodiment shown in FIG. 4, which will not be described here in detail.

[0235] For example, the communication apparatus 1000 is configured to perform the following scheme:

[0236] The interface module 1001 is configured to receive first configuration information of a first pilot signal. The first configuration information is used to instruct the first device to divide at least one sensing target into X dynamic targets and Y static targets using the first pilot signal. X and Y are integers greater than or equal to 0.

[0237] The processing module 1002 is configured to generate first information.

[0238] The interface module 1001 is further configured to send the first information. The first information is used to indicate X and / or Y.

[0239] The interface module 1001 is further configured to receive second configuration information of a second pilot signal. The second configuration information is used to indicate time-frequency resources of the second pilot signal. The second configuration information is determined based on the first information.

[0240] In a possible implementation, the first configuration information comprises a frequency domain unit quantity M1 of the first pilot signal and a time domain unit interval K1 of the first pilot signal, and the second configuration information comprises a frequency domain unit quantity M2 of the second pilot signal and a time domain unit interval K2 of the second pilot signal, where:

[0241] If a ratio of X to Y is greater than or equal to a first threshold value and a sum of X and Y is greater than or equal to a second threshold value, M2 is less than M1 and K2 is less than K1; or, if the ratio of X to Y is less than the first threshold value and the sum of X and Y is less than the second threshold value, M2 is greater than M1 and K2 is greater than K1.

[0242] In another possible implementation, the interface module 1001 is further configured to receive at least one piece of indication information, where the indication information is used to instruct the first device to periodically evaluate distance changes of at least one sensing target using the first pilot signal, and the distance changes of the at least one sensing target are used by the first device to determine the first information.

[0243] In another possible implementation, the at least one piece of indication information comprises first indication information, and the first indication information comprises a first evaluation period t1 and an evaluation quantity n1, where t1 is a positive integer multiple of the time domain unit interval K1 of the first pilot signal.

[0244] In another possible implementation, the at least one sensing target comprises a first sensing target, where: if a distance change of the first sensing target in the n1 evaluations is greater than or equal to a threshold value, the first sensing target is a dynamic target, and the threshold value is determined based on a positioning accuracy of the first device; or, if the distance change of the first sensing target in the n1 evaluations is less than the threshold value, the first sensing target is a static target.

[0245] In another possible implementation, the evaluation periods of each piece of indication information in the at least one piece of indication information are different, and the at least one piece of indication information further comprises second indication information, and the second indication information comprises a second evaluation period t2, where:

[0246] If the evaluation quantities of each piece of indication information in the at least one piece of indication information are the same, a ratio of t2 to t1 is a, and a is an integer greater than or equal to 10.

[0247] In another possible implementation, the first pilot signal and the second pilot signal are transmitted by the first device using a plurality of different beams.

[0248] It should be understood that specific processes in which each module performs the corresponding processes described above are described in detail in the method embodiments described above, and thus are not described herein again for the sake of brevity.

[0249] Optionally, when the communication apparatus 1000 is a terminal device or a communication module in a terminal device, the processing module 1002 in the above embodiment can be implemented by at least one processor or processor-related circuit. Specifically, the processor can include a Modem chip, or a system on chip (SoC) chip or a system in package (SIP) chip containing a Modem core. The interface module 1001 can be implemented by a transceiver or transceiver-related circuit. The interface module 1001 can also be referred to as a communication module or a communication interface. The storage module can be implemented by at least one memory.

[0250] Optionally, when the communication apparatus 1000 is a circuit or chip responsible for communication functions in a terminal device, such as a Modem chip or a SoC chip or a SIP chip containing a Modem core, the functions of the processing module 1002 can be implemented by the circuit system including one or more processors or processing cores in the above-mentioned chip. The functions of the interface module 1001 can be implemented by the interface circuit or data transceiver circuit on the above-mentioned chip.

[0251] Next, a communication apparatus provided by an embodiment of the present application is introduced. Referring to FIG. 11, FIG. 11 is a structural schematic diagram of a communication apparatus provided by an embodiment of the present application. The communication apparatus can be an SMF or a first device in the above method embodiments, and can also be a chip, a chip system, or a processor, etc. supporting the SMF or the first device to implement the above method. The communication apparatus can be used to implement the methods described in the above method embodiments, and specific can refer to the descriptions in the above method embodiments.

[0252] The communication apparatus can include one or more processors 1101, which are connected with a memory 1102, an input and output unit 1103, and a bus 1104. The processor 1101 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 communication protocols 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 software programs, and process data of software programs.

[0253] Optionally, the communication apparatus can include one or more memories 1102, which can have instructions stored thereon. The instructions can be run on the processor 1101, so that the communication apparatus executes the methods described in the above method embodiments. Optionally, the memory 1102 can also store data. The processor 1101 and the memory 1102 can be separately arranged, or can be integrated together.

[0254] 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.

[0255] In another possible design, the processor 1101 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 can be used for reading and writing codes / data, or the transceiving circuit, the interface, or the interface circuit can be used for signal transmission or transfer.

[0256] In yet another possible design, the processor 1101 can store instructions. The instructions can run on the processor 1101, and can cause the communication device to perform the methods described in the above method embodiments. The instructions can be fixed in the processor 1101. In this case, the processor 1101 can be implemented by hardware.

[0257] In yet another possible design, the communication device can include a circuit. The circuit can realize the functions of the transmitting or receiving or communicating of the SMF or the first device 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 complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (PMOS), Bipolar Junction Transistor (BJT), BiCMOS, silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0258] The communication apparatus in the above embodiments can be an SMF or a first 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 FIG. 11. The communication apparatus can be a standalone device or can be part of a larger device. For example, the communication apparatus can be:

[0259] (1) a standalone integrated circuit (IC), or a chip, or a chip system or subsystem;

[0260] (2) a set of one or more ICs, which can optionally also include storage components for storing data, instructions, etc.

[0261] (3) an ASIC, such as a modem;

[0262] (4) a module that can be embedded within other devices;

[0263] (5) a receiver, terminal, intelligent terminal, cellular phone, wireless device, handset, mobile unit, vehicular device, network device, cloud device, artificial intelligence device, etc.

[0264] (6) other, etc.

[0265] For the case where the communication apparatus is a chip or chip system, refer to the structure diagram of the chip shown in FIG. 12. The chip 1200 shown in FIG. 12 includes a processor 1201, an interface 1202. Optionally, it can also include a memory 1203. Among them, the number of processors 1201 can be one or more, and the number of interfaces 1202 can be multiple.

[0266] For the case where the chip is used to implement the functions of the SMF or the first device in the embodiments of the present application:

[0267] The interface 1202 is configured to receive or output a signal.

[0268] The processor 1201 is configured to perform data processing operations of an access network device or a terminal device.

[0269] In a possible implementation, the embodiment of the present application can be applied to a baseband chip of a network device or a terminal device. The sending / receiving can correspond to the behavior of signal sending or receiving, and can be understood as the behavior of sending / receiving a radio frequency signal in an analog / intermediate frequency / radio frequency domain, or can be understood as the operation of starting or controlling sending / receiving in a digital domain, or a combination of the two. For example, when the device sends or receives various signals, the processor in the device realizes the sending or receiving by driving or controlling the radio frequency circuit. Therefore, when the signal is sent or received, the processor is the decision maker or controller of the sending and receiving operation, and the radio frequency circuit is the specific sending and receiving executor, and the two cooperate with the antenna to jointly realize the sending and receiving operation. The processor includes but is not limited to a CPU, a DSP, a microprocessor, and the like. The radio frequency circuit includes but is not limited to a radio frequency chip, a radio frequency front end, a PA, an LNA, a mixer, a filter, a duplexer, and the like, and can selectively include an antenna integrated with the radio frequency circuit.

[0270] 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. In some scenarios, the features can be combined with other features according to the needs. Correspondingly, the communication apparatus given in the embodiments of the present application can also implement these features or functions, which will not be described here.

[0271] It should be understood that the processor in the embodiments of the present application can be an integrated circuit chip with a signal processing capability. In the implementation process, each step of the above method embodiments can be completed by an integrated logic circuit of hardware in the processor or an instruction in the form of software. The processor can be a general processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0272] It can be appreciated that the memory in the embodiments of the present application can be a volatile memory or a nonvolatile memory, or can include both volatile and nonvolatile memory. Among them, the nonvolatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM) used as an external cache. By way of example, and not limitation, many forms of RAK are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the system and method described herein is intended to include, but not be limited to, these and any other suitable types of memory.

[0273] 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.

[0274] The embodiments of the present application also provide a computer program product comprising instructions which, when executed on a computer, cause the computer to perform the method in the foregoing embodiments.

[0275] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiments, which will not be described here.

[0276] 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 described device embodiments are merely schematic. For example, the division of the units is only a logical function division. There can be another division manner for the 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 can be indirect couplings or communication connections through some interfaces, devices or units, and can be in electrical, mechanical or other forms.

[0277] The units described as separated components can or can not be physically separated, and the components displayed as units can or can not be physical units, i.e., can be located in one place, or can be distributed on a plurality of network units. In actual implementation, some or all of the units can be selected according to the actual needs to achieve the purposes of the embodiments of the present application.

[0278] 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 as a separate unit, or two or more units can be integrated in one unit. The integrated unit can be implemented in the form of hardware, or in the form of software functional units.

[0279] When the integrated unit is implemented in the form of software functional units and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on such an understanding, the technical solutions of the present application essentially, or the part that contributes to the prior art, or all or a 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 several 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: U disk, mobile hard disk, read-only memory (ROM, read-only memory), random access memory (RAM, random access memory), magnetic disk or optical disk, and various other media that can store program codes.

[0280] 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 medium 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 by comprising: The method comprises: sending first configuration information of a first pilot signal, the first configuration information being used to instruct a first device to divide at least one sensing target into X dynamic targets and Y static targets using the first pilot signal, the X and the Y being integers greater than or equal to 0; receiving first information, the first information being used to instruct the X and / or the Y; sending second configuration information of a second pilot signal, the second configuration information being used to instruct time-frequency resources of the second pilot signal, the second configuration information being determined based on the first information.

2. The method of claim 1, wherein, The first configuration information comprises a frequency domain unit quantity M1 of the first pilot signal and a time domain unit interval K1 of the first pilot signal, the second configuration information comprises a frequency domain unit quantity M2 of the second pilot signal and a time domain unit interval K2 of the second pilot signal, wherein: if a ratio of the X to the Y is greater than or equal to a first threshold value and a sum of the X and the Y is greater than or equal to a second threshold value, the M2 is less than the M1 and the K2 is less than the K1; or, if the ratio of the X to the Y is less than the first threshold value or the sum of the X and the Y is less than the second threshold value, the M2 is less than the M1 and the K2 is greater than the K1.

3. The method according to claim 1 or 2, characterized in that, The method further comprises: sending at least one piece of indication information, the indication information being used to instruct the first device to periodically evaluate distance changes of the at least one sensing target using the first pilot signal, the distance changes of the at least one sensing target being used by the first device to determine the first information.

4. The method of claim 3, wherein, The at least one piece of indication information comprises first indication information, the first indication information comprising a first evaluation period t1 and an evaluation frequency n1, the first evaluation period being used to instruct a transmission period of the first pilot signal, the evaluation frequency being used to instruct a transmission frequency of the first pilot signal, the t1 being a positive integer multiple of the time domain unit interval K1 of the first pilot signal.

5. The method of claim 4, wherein, Evaluation periods of each piece of indication information in the at least one piece of indication information are different, the at least one piece of indication information further comprises second indication information, the second indication information comprising a second evaluation period t2, wherein: if evaluation frequencies of each piece of indication information in the at least one piece of indication information are the same, a ratio of the t2 to the t1 is a, the a being an integer greater than or equal to 10.

6. A communication method characterized by comprising: The method comprises: receiving first configuration information of a first pilot signal, the first configuration information being used to instruct a first device to divide at least one sensing target into X dynamic targets and Y static targets using the first pilot signal, the X and the Y being integers greater than or equal to 0; sending first information, the first information being used to instruct the X and / or the Y; receiving second configuration information of a second pilot signal, the second configuration information being used to instruct time-frequency resources of the second pilot signal, the second configuration information being determined based on the first information.

7. The method of claim 6, wherein, The first configuration information comprises a frequency domain unit quantity M1 of the first pilot signal and a time domain unit interval K1 of the first pilot signal, and the second configuration information comprises a frequency domain unit quantity M2 of the second pilot signal and a time domain unit interval K2 of the second pilot signal, wherein: If a ratio of the X to the Y is greater than or equal to a first threshold value and a sum of the X and the Y is greater than or equal to a second threshold value, the M2 is less than the M1, and the K2 is less than the K1; Or, If the ratio of the X to the Y is less than the first threshold value and the sum of the X and the Y is less than the second threshold value, the M2 is greater than the M1, and the K2 is greater than the K1.

8. The method according to claim 6 or 7, characterized in that, The method further comprises: receiving at least one indication information, the indication information being used to indicate that the first device periodically evaluates distance changes of the at least one sensing target using the first pilot signal, and the distance changes of the at least one sensing target are used by the first device to determine the first information.

9. The method of claim 8, wherein, The at least one indication information comprises first indication information, and the first indication information comprises a first evaluation period t1 and an evaluation times n1, and the t1 is an integer multiple of the time domain unit interval K1 of the first pilot signal.

10. The method of claim 9, wherein, The at least one sensing target comprises a first sensing target, wherein: If a distance change of the first sensing target in the n1 evaluations is greater than or equal to a threshold value, the first sensing target is the dynamic target, and the threshold value is determined based on a positioning accuracy of the first device; Or, If the distance change of the first sensing target in the n1 evaluations is less than the threshold value, the first sensing target is the static target.

11. The method according to claim 9 or 10, characterized in that, Evaluation periods of each of the at least one indication information are different, and the at least one indication information further comprises second indication information, and the second indication information comprises a second evaluation period t2, wherein: If evaluation times of each of the at least one indication information are the same, a ratio of the t2 to the t1 is a, and the a is an integer greater than or equal to 10.

12. The method according to any one of claims 7 to 11, characterized in that, The first pilot signal and the second pilot signal are transmitted by the first device using a plurality of different beams.

13. A communications device, characterized by A module or unit for performing the method of any of claims 1 to 5.

14. A communications device, characterized by A module or unit for performing the method of any of claims 6 to 12.

15. A communications device, characterized by Comprise: at least one processor configured to execute a program to cause the communication device to perform the method of any of claims 1 to 5.

16. The communication apparatus according to claim 15, wherein The communication device further comprises at least one memory storing instructions that, when executed on the communication device, cause the communication device to perform the method of any of claims 1 to 5.

17. A communications device, characterized by Comprise: at least one processor configured to execute a program to cause the communication device to perform the method of any of claims 6 to 12.

18. The communication apparatus according to claim 17, wherein The communication device further comprises at least one memory storing instructions that, when executed on the communication device, cause the communication device to perform the method of any of claims 6 to 12.

19. A communication system, characterized by Comprise: A communications device for performing the method of any one of steps 1 to 5, and a communications device for performing the method of any one of claims 6 to 12.

20. A computer-readable storage medium, characterized in that, Computer program comprising instructions which, when said instructions are run on a computer, cause the computer to perform the method of any one of claims 1 to 5, or cause the computer to perform the method of any one of claims 6 to 12.

21. A computer program product comprising instructions, wherein: Computer program which, when it is run on a computer, causes the computer to perform the method of any one of claims 1 to 5, or causes the computer to perform the method of any one of claims 6 to 12.

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