Sensing method and corresponding apparatus

Abstract

A sensing method, which can be applied to an MIMO sensing communication system. The method comprises: on the basis of a speed measurement demand, a parameter of a carrier, the number of first transmitting ports and a first modulation type, a first communication apparatus can determine a signal configuration parameter of a second transmitting port, the second transmitting port being included in the first transmitting ports, and the first modulation type being at least one of signal modulation types supported by the first transmitting ports; sending the signal configuration parameter; and, on the basis of the signal configuration parameter, a transmitting end can send a sensing signal. In the method, as the signal configuration parameter is related to the speed measurement demand, the sensing signal sent on the basis of the signal configuration parameter can relatively well measure a moving sensing object in the range of the speed measurement demand, thus improving speed measurement performance and sensing quality.

Description

A perception method and a corresponding device

[0001] The present application claims priority to the Chinese Patent Application No. 202410627757.7, filed on May 20, 2024, and entitled "A Perception Method and a Corresponding Device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of communication technology, in particular to a perception method and a corresponding device. BACKGROUND

[0003] Multiple-input multiple-output (MIMO) is a wireless communication technology that uses multiple antennas to transmit and receive signals. Currently, this technology is introduced into the field of radar for perception, also known as MIMO perception. MIMO radar systems can use fewer transceiver antenna elements to achieve better spatial resolution. MIMO perception refers to perception using MIMO mode. Under MIMO perception, the signals transmitted by the transmitting antennas are usually orthogonal signals, so that the receiving antennas can separate the signals of different transmitting channels. Moreover, when the number of transmitting antennas is M and the number of receiving antennas is N, the receiving end can obtain MxN times signal processing gain.

[0004] Current MIMO perception usually cannot measure perception targets in a motion state well. Therefore, how to use MIMO perception to improve the speed measurement performance has become a problem to be solved. SUMMARY

[0005] The present application provides a perception method for improving the speed measurement performance of a perception target in a motion state. The present application also provides a corresponding device, a computer readable storage medium, and a computer program product, etc.

[0006] The first aspect of the present application provides a perception method, which is applied to a first communication device. The method comprises: determining a signal configuration parameter of a second transmitting port according to a speed measurement requirement, a parameter of a carrier, a number of first transmitting ports, and a first modulation type; wherein the second transmitting port is included in the first transmitting port, and the first modulation type is at least one of the signal modulation types supported by the first transmitting port; and transmitting the signal configuration parameter; wherein the signal configuration parameter is used for the second transmitting port to transmit a perception signal.

[0007] In the present application, the first communication device can be a central node or a receiving end. The central node can be a transmitting end of the sensing signal, or a node configured with sensing parameters for the receiving end of the sensing signal, and / or a node aggregating sensing results. The central node can be an access network device or a chip in the access network device. Of course, the central node can also be other forms of devices.

[0008] In the present application, the speed measurement requirement can include a maximum speed and a minimum speed that need to be sensed; or scene indication information, which is used to indicate a speed range that needs to be sensed.

[0009] In the present application, the parameters of the carrier can include the wavelength, frequency or pulse repetition frequency (PRF) of the carrier.

[0010] In the present application, the modulation type can be the type of orthogonal signal, which can include the following types, such as time division multiple access (TDMA), frequency division multiple access (FDMA), code division multiple access (CDMA), doppler diversity multiple access (DDMA), and empty-band-based DDMA.

[0011] In the present application, the second transmitting port is included in the first transmitting port means that the second transmitting port is part or all of the first transmitting port.

[0012] In the present application, the signal configuration parameter means the parameter required for generating the sensing signal of the second transmitting port, such as the index of the second transmitting port, the first modulation type, etc.

[0013] In the above first aspect, the first communication device can determine the signal configuration parameter of the second transmitting port based on the speed measurement requirement, the parameters of the carrier, the number of the first transmitting port, and the first modulation type; in this way, the sensing signal transmitted based on the signal configuration parameter can better measure the moving sensing target within the speed measurement requirement range, thereby improving the speed measurement performance and improving the sensing quality.

[0014] If the first communication device is a transmitting end, the first aspect can be: determining a signal configuration parameter of a second transmitting port according to a speed measurement requirement, a parameter of a carrier, a number of the first transmitting port, and a first modulation type, wherein the second transmitting port is included in the first transmitting port, and the first modulation type is at least one of signal modulation types supported by the first transmitting port; and transmitting a sensing signal according to the signal configuration parameter.

[0015] In a possible implementation, the first modulation type meets a signal-to-noise ratio requirement.

[0016] In this possible implementation, the first modulation type meets a signal-to-noise ratio requirement, which can narrow the range of modulation types of the sensing signal, and thus determine a more suitable modulation type for the sensing signal. In this way, not only sensing resources can be saved, but also speed measurement performance can be improved.

[0017] In a possible implementation, the step of determining the signal configuration parameter of the second transmitting port according to the speed measurement requirement, the parameter of the carrier, the number of the first transmitting port, and the first modulation type includes: determining a first time domain period according to the speed measurement requirement, the parameter of the carrier, and the number of the first transmitting port; and determining the signal configuration parameter of the second transmitting port according to the first modulation type, the first time domain period, and the number of the first transmitting port.

[0018] In this possible implementation, the first time domain period can be determined first, and the signal configuration parameter can be determined in combination with the modulation type. If the modulation type and the time domain period are preconfigured, only a small amount of signal configuration parameters need to be transmitted to the transmitting end in the transmission process, and the transmitting end can find the signal configuration parameter used to generate the sensing signal. In this way, air interface overhead can be saved.

[0019] In a possible implementation, the signal configuration parameter includes an index of the second transmitting port and a first mapping relationship, and the first mapping relationship includes a mapping relationship between the index of the second transmitting port and configuration information of the sensing signal.

[0020] In this possible implementation, the index of the second transmitting port and the first mapping relationship are transmitted to the transmitting end, which is beneficial to the transmitting end to determine the configuration information of the sensing signal corresponding to the second transmitting port, and thus improve the speed of transmitting the sensing signal.

[0021] In a possible implementation, the method further includes: transmitting an index of a receiving port and a first mapping relationship, and the first mapping relationship is used for the receiving port to process an echo signal of the sensing signal.

[0022] In the possible implementation, the first communication device sends the index of the receiving port and the first mapping relationship to the receiving end, so that the corresponding receiving port of the receiving end can better process the echo signal of the sensing signal.

[0023] In a possible implementation, the configuration information of the sensing signal includes indication information of the first modulation type, retrieval information, and relationship information; the indication information of the first modulation type is used to determine the first modulation type; the retrieval information is used to retrieve basic information of the sensing signal under the first modulation type, and the basic information includes at least one of the number indication information of the sensing signal, the subcarrier spacing of the frequency division multiple access, the time interval of the time division multiple access, the signal coding strategy of the code division multiple access, or the phase offset of the Doppler multiple access; and the relationship information is used to indicate the corresponding relationship between the sensing signals of different second transmitting ports, or / and the order relationship between different sensing signals corresponding to the same second transmitting port.

[0024] In the present application, the retrieval information is used to retrieve the basic information from a table. The retrieval information can include a row index in the table or a first time domain period.

[0025] In the possible implementation, the indication information of the first modulation type can be used to determine the first modulation type, and then the basic information can be retrieved in combination with the first modulation type through the retrieval information, and then the accurate correspondence between the second transmitting port and the sensing signal can be realized in combination with the relationship information, so as to improve the accuracy of the sensing signal.

[0026] In a possible implementation, the indication information of the first modulation type is represented by a first bit and / or a second bit in a plurality of bits, and the first bit and the second bit are respectively associated with different first modulation types.

[0027] In the possible implementation, the indication information of the first modulation type can be represented by a plurality of bits, wherein the first bit can be one or more bits in front of the plurality of bits, and the second bit can be one or more bits after the first bit. The first modulation type can be indicated by the plurality of bits, so that one or more modulation types supported by the second transmitting port can be indicated concisely.

[0028] In a possible implementation, the first modulation type satisfying the signal-to-noise ratio requirement includes that a first signal-to-noise ratio corresponding to the first modulation type is greater than the signal-to-noise ratio requirement; wherein the first signal-to-noise ratio is determined based on the transmitting power of the first transmitting port, the noise energy of the first transmitting port, and a first time domain period, and the first time domain period is determined based on the speed measurement requirement, the parameters of the carrier, and the number of the first transmitting ports.

[0029] In this possible implementation, the signal-to-noise ratio (SNR) of each modulation type supported by the first transmitting port can be determined based on the transmission power, noise energy, and time period of the first transmitting port. Then, the first modulation type with an SNR greater than the required SNR is selected to generate the sensing signal, which can improve the quality of the sensing signal and thus improve the speed measurement performance.

[0030] In one possible implementation, the speed measurement range of the first modulation type includes the speed measurement requirements.

[0031] In this possible implementation, the first communication device can further narrow the range of the first modulation type based on the speed measurement range of the first modulation type, thereby further improving the quality of the sensed signal.

[0032] In one possible implementation, when the first modulation type is time division multiple access, Doppler multiple access, or binary code division multiple access, the speed measurement range is: V max ≤λ / 4N t T c V min ≥-λ / 4N t T c ;

[0033] When the first modulation type is based on open-band Doppler multiple access, the velocity measurement range and the number of targets within the resolution cell are related. Related;

[0034] Among them, V max V represents the upper limit of the speed measurement range. min N represents the lower limit of the speed measurement range. t T represents the number of second transmit ports. c λ represents the time-domain period of each signal pulse, and λ represents the wavelength of the carrier wave.

[0035] In this possible implementation, different modulation types have different speed measurement ranges, which is beneficial for selecting the modulation type of the sensing signal with high accuracy.

[0036] In one possible implementation, At that time, V max ≤λ / 4T c V min ≥-λ / 4T c ,when At that time, V max ≤λ / 4(N t +N empty )T c V min ≥; N empty The number of empty bands.

[0037] The second aspect of the present application provides a sensing method, which can be applied to a second communication device in communication with a first communication device, and the method comprises:

[0038] receiving signal configuration parameters of a second transmission port from the first communication device; wherein the signal configuration parameters are determined based on a speed measurement requirement, parameters of a carrier, a number of the first transmission port, and a first modulation type, the second transmission port is included in the first transmission port, and the first modulation type is at least one of signal modulation types supported by the first transmission port;

[0039] sending a sensing signal through the second transmission port according to the signal configuration parameters of the second transmission port.

[0040] In the present application, the second communication device can be a transmission end, and the second communication device can be an access network device, a terminal device, or a chip in the access network device or a chip in the terminal device. The transmission end can be one or more, and when there are multiple transmission ends, the signal configuration parameters of different transmission ends are different.

[0041] In a possible implementation, the first modulation type meets a signal-to-noise ratio requirement.

[0042] In a possible implementation, the signal configuration parameters include an index of the second transmission port and a first mapping relationship, and the first mapping relationship includes a mapping relationship between the index of the second transmission port and configuration information of the sensing signal.

[0043] In a possible implementation, the configuration information of the sensing signal includes indication information of the first modulation type, retrieval information, and relationship information; wherein the indication information of the first modulation type is used to determine the first modulation type; the retrieval information is used to retrieve basic information of the sensing signal under the first modulation type, and the basic information includes quantity indication information of the sensing signal, and at least one of subcarrier spacing of frequency division multiple access, time interval of time division multiple access, signal coding strategy of code division multiple access, or phase offset of Doppler multiple access; and the relationship information is used to indicate a corresponding relationship between the sensing signals of different second transmission ports, or / and an order relationship between different sensing signals corresponding to the same second transmission port.

[0044] In a possible implementation, the step of sending the sensing signal through the second transmission port according to the signal configuration parameters of the second transmission port comprises: determining configuration information of the sensing signal of the second transmission port from the first mapping relationship according to the index of the second transmission port; and sending the sensing signal through the second transmission port according to the first modulation type, the retrieval information, and the relationship information.

[0045] In one possible implementation, the indication information of the first modulation type is represented by a first bit and / or a second bit among a plurality of bits, wherein the first bit and the second bit are respectively associated with different first modulation types.

[0046] In one possible implementation, the first modulation type satisfies the signal-to-noise ratio requirement by: the first signal-to-noise ratio corresponding to the first modulation type is greater than the signal-to-noise ratio requirement; wherein, the first signal-to-noise ratio is determined based on the transmit power of the first transmit port, the noise energy of the first transmit port, and the first time-domain period, and the first time-domain period is determined based on the velocity measurement requirement, the parameters of the carrier, and the number of the first transmit ports.

[0047] In one possible implementation, the speed measurement range of the first modulation type includes the speed measurement requirements.

[0048] In one possible implementation, when the first modulation type is time division multiple access, Doppler multiple access, or binary code division multiple access, the speed measurement range is: V max ≤λ / 4N t T c V min ≥-λ / 4N t T c ;

[0049] When the first modulation type is based on open-band Doppler multiple access, the velocity measurement range and the number of targets within the resolution cell are related. Related;

[0050] Among them, V max V represents the upper limit of the speed measurement range. min N represents the lower limit of the speed measurement range. t T represents the number of second transmit ports. c λ represents the time-domain period of each signal pulse, and λ represents the wavelength of the carrier wave.

[0051] In one possible implementation, At that time, V max ≤λ / 4T c V min ≥-λ / 4T c ,when At that time, V max ≤λ / 4(N t +N empty )T c V min ≥; N empty The number of empty bands.

[0052] The features and advantages of the second aspect or any possible implementation mode of the second aspect can be understood with reference to the corresponding features and advantages of the first aspect or any possible implementation mode of the first aspect, which will not be repeated here.

[0053] The third aspect of the present application provides a communication device, which can be the first communication device, comprising a transceiver module and a processing module.

[0054] The processing module is configured to determine the signal configuration parameter of the second transmission port according to the speed measurement requirement, the parameter of the carrier, the number of the first transmission ports, and the first modulation type, wherein the second transmission port is included in the first transmission port, and the first modulation type is at least one of the signal modulation types supported by the first transmission port.

[0055] The transceiver module is configured to send the signal configuration parameter, wherein the signal configuration parameter is used for the second transmission port to send the sensing signal.

[0056] In a possible implementation mode, the first modulation type meets the signal-to-noise ratio requirement.

[0057] In a possible implementation mode, the processing module is configured to determine a first time domain period according to the speed measurement requirement, the parameter of the carrier, and the number of the first transmission ports, and determine the signal configuration parameter of the second transmission port according to the first modulation type, the first time domain period, and the number of the first transmission ports.

[0058] In a possible implementation mode, the signal configuration parameter comprises an index of the second transmission port and a first mapping relationship, and the first mapping relationship comprises a mapping relationship between the index of the second transmission port and configuration information of the sensing signal.

[0059] In a possible implementation mode, the transceiver module is further configured to send the index of the receiving port and the first mapping relationship, and the first mapping relationship is used for the receiving port to process the echo signal of the sensing signal.

[0060] In a possible implementation mode, the configuration information of the sensing signal comprises indication information of the first modulation type, retrieval information, and relationship information, wherein the indication information of the first modulation type is used to determine the first modulation type, the retrieval information is used to retrieve the basic information of the sensing signal under the first modulation type, the basic information comprises quantity indication information of the sensing signal, and at least one of a subcarrier spacing of frequency division multiple access, a time interval of time division multiple access, a signal coding strategy of code division multiple access, or a phase offset of Doppler multiple access, and the relationship information is used to indicate a corresponding relationship between the sensing signals of different second transmission ports, or / and an order relationship between different sensing signals corresponding to the same second transmission port.

[0061] In a possible implementation, the indication information of the first modulation type is represented by a first bit and / or a second bit in a plurality of bits, and the first bit and the second bit are respectively associated with different first modulation types.

[0062] In a possible implementation, the first modulation type satisfies the signal-to-noise ratio requirement, including that a first signal-to-noise ratio corresponding to the first modulation type is greater than the signal-to-noise ratio requirement, and the first signal-to-noise ratio is determined based on a transmission power of the first transmission port, noise energy of the first transmission port, and a first time domain period, and the first time domain period is determined based on the speed measurement requirement, a parameter of the carrier, and a number of the first transmission port.

[0063] In a possible implementation, the speed measurement range of the first modulation type contains the speed measurement requirement.

[0064] In a possible implementation, when the first modulation type is time division multiple access, Doppler multiple access, or binary code division multiple access, the speed measurement range is V max ≤ λ / 4N t T c ,V min ≥ -λ / 4N t T c ;

[0065] When the first modulation type is Doppler multiple access based on an empty band, the speed measurement range is related to a number of targets in a resolution unit.

[0066] wherein V max represents an upper limit of the speed measurement range, V min represents a lower limit of the speed measurement range, N t represents a number of the second transmission port, T c represents a time domain period of each signal pulse, and λ represents a wavelength of the carrier.

[0067] In a possible implementation, V max ≤ λ / 4T c V min ≥ -λ / 4T c when V max ≤ λ / 4(N t +N empty )T c V min ≥ N empty is a number of empty bands.

[0068] The fourth aspect of the present application provides a communication device, which can be a second communication device in communication with a first communication device, and the communication device comprises a transceiver module and a processing module. ​

[0069] a transceiver configured to receive signal configuration parameters of a second transmission port from the first communication device, wherein the signal configuration parameters are determined based on a speed measurement requirement, parameters of a carrier, a number of the first transmission ports, and a first modulation type, the second transmission port is included in the first transmission ports, and the first modulation type is at least one of signal modulation types supported by the first transmission ports;

[0070] a processing module configured to generate a sensing signal of the second transmission port according to the signal configuration parameters of the second transmission port;

[0071] the transceiver is further configured to send the sensing signal.

[0072] In a possible implementation, the first modulation type satisfies a signal-to-noise ratio requirement.

[0073] In a possible implementation, the signal configuration parameters include an index of the second transmission port and a first mapping relationship, and the first mapping relationship includes a mapping relationship between the index of the second transmission port and configuration information of the sensing signal.

[0074] In a possible implementation, the configuration information of the sensing signal includes indication information of the first modulation type, retrieval information, and relationship information, wherein the indication information of the first modulation type is used to determine the first modulation type, the retrieval information is used to retrieve basic information of the sensing signal under the first modulation type, the basic information includes quantity indication information of the sensing signal, and at least one of a subcarrier spacing of frequency division multiple access, a time interval of time division multiple access, a signal coding strategy of code division multiple access, or a phase offset of Doppler multiple access, and the relationship information is used to indicate a corresponding relationship between the sensing signals of different second transmission ports, or / and an order relationship between different sensing signals corresponding to a same second transmission port.

[0075] In a possible implementation, the processing module is configured to determine, from the first mapping relationship, the configuration information of the sensing signal of the second transmission port according to the index of the second transmission port, and generate the sensing signal corresponding to the second transmission port according to the first modulation type, the retrieval information, and the relationship information.

[0076] In a possible implementation, the indication information of the first modulation type is represented by first bit and / or second bit in a plurality of bits, and the first bit and the second bit are respectively associated with different first modulation types.

[0077] In one possible implementation, the first modulation type satisfies the signal-to-noise ratio requirement by: the first signal-to-noise ratio corresponding to the first modulation type is greater than the signal-to-noise ratio requirement; wherein, the first signal-to-noise ratio is determined based on the transmit power of the first transmit port, the noise energy of the first transmit port, and the first time-domain period, and the first time-domain period is determined based on the velocity measurement requirement, the parameters of the carrier, and the number of the first transmit ports.

[0078] In one possible implementation, the speed measurement range of the first modulation type includes the speed measurement requirements.

[0079] In one possible implementation, when the first modulation type is time division multiple access, Doppler multiple access, or binary code division multiple access, the speed measurement range is: V max ≤λ / 4N t T c V min ≥-λ / 4N t T c ;

[0080] When the first modulation type is based on open-band Doppler multiple access, the velocity measurement range and the number of targets within the resolution cell are related. Related;

[0081] Among them, V max V represents the upper limit of the speed measurement range. min N represents the lower limit of the speed measurement range. t T represents the number of second transmit ports. c λ represents the time-domain period of each signal pulse, and λ represents the wavelength of the carrier wave.

[0082] In one possible implementation, At that time, V max ≤λ / 4T c V min ≥-λ / 4T c ,when At that time, V max ≤λ / 4(N t +N empty )T c V min ≥; N empty The number of empty bands.

[0083] A fifth aspect of this application provides a communication device including a processor. The processor is configured to call and run a computer program stored in a memory, causing the processor to implement as described in the first aspect or any of the implementations of the first aspect.

[0084] Optionally, the communication device also includes a transceiver; the processor is also used to control the transceiver to send and receive signals.

[0085] Optionally, the communication apparatus comprises a memory, and the memory stores a computer program.

[0086] The communication apparatus of the fifth aspect can be a device or a chip (system) in a device.

[0087] The sixth aspect of the present application provides a communication apparatus, which comprises a processor. The processor is configured to invoke and run a computer program stored in a memory, so that the processor implements the method / operation / step / action of the second aspect or any of the implementation manners of the second aspect.

[0088] Optionally, the communication apparatus further comprises a transceiver, and the processor is further configured to control the transceiver to transceive signals.

[0089] Optionally, the communication apparatus comprises a memory, and the memory stores a computer program.

[0090] The communication apparatus of the sixth aspect can be a device or a chip (system) in a device.

[0091] The seventh aspect of the present application provides a communication apparatus, which can be the first communication apparatus, or a module or unit (for example, a chip or a chip system or a circuit) in the first communication apparatus, which is configured to perform the method / operation / step / action of the first aspect.

[0092] The eighth aspect of the present application provides a communication apparatus, which can be the second communication apparatus, or a module or unit (for example, a chip or a chip system or a circuit) in the second communication apparatus, which is configured to perform the method / operation / step / action of the second aspect.

[0093] The ninth aspect of the present application provides a computer readable storage medium, which comprises computer instructions, and when the computer instructions are run on a computer, the computer is caused to perform the method of the first aspect or any of the implementation manners of the first aspect.

[0094] The tenth aspect of the present application provides a computer readable storage medium, which comprises computer instructions, and when the computer instructions are run on a computer, the computer is caused to perform the method of the second aspect or any of the implementation manners of the second aspect.

[0095] The eleventh aspect of the present application provides a computer program product comprising instructions, and when the computer program product is run on a computer, the computer is caused to perform the method of the first aspect or any of the implementation manners of the first aspect.

[0096] The twelfth aspect of the present application provides a computer program product comprising instructions, and when the computer program product is run on a computer, the computer is caused to perform the method of the second aspect or any of the implementation manners of the second aspect.

[0097] The thirteenth aspect of the present application provides a chip device, comprising a processor configured to invoke a program stored in a memory, so that the processor executes the first aspect or any of the implementation manners of the first aspect.

[0098] Optionally, the memory is located inside or outside the chip device.

[0099] The fourteenth aspect of the present application provides a chip device, comprising a processor configured to invoke a program stored in a memory, so that the processor executes the second aspect or any of the implementation manners of the second aspect.

[0100] Optionally, the memory is located inside or outside the chip device.

[0101] The fifteenth aspect of the present application provides a communication system, comprising a first communication device configured to execute the first aspect or any of the implementation manners of the first aspect, and a second communication device configured to execute the second aspect or any of the implementation manners of the second aspect.

[0102] The technical effects brought by the third aspect or any of the possible implementation manners of the third aspect, the fifth aspect, the seventh aspect, the ninth aspect, the eleventh aspect, the thirteenth aspect or the fifteenth aspect can refer to the technical effects brought by the first aspect or any of the possible implementation manners of the first aspect, which will not be repeated here.

[0103] The technical effects brought by the fourth aspect or any of the possible implementation manners of the fourth aspect, the sixth aspect, the eighth aspect, the tenth aspect, the twelfth aspect or the fourteenth aspect can refer to the technical effects brought by the second aspect or any of the possible implementation manners of the second aspect, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0104] FIG. 1A is a schematic diagram of an example of a MIMO scenario according to an embodiment of the present application;

[0105] FIG. 1B is a schematic diagram of an example of time division multiple access according to an embodiment of the present application;

[0106] FIG. 1C is a schematic diagram of an example of frequency division multiple access according to an embodiment of the present application;

[0107] FIG. 1D is a schematic diagram of an example of code division multiple access according to an embodiment of the present application;

[0108] FIG. 1E is a schematic diagram of an example of Doppler division multiple access according to an embodiment of the present application;

[0109] FIG. 1F is a schematic diagram of an example of Doppler division multiple access based on space bands according to an embodiment of the present application;

[0110] FIG. 2A is a schematic diagram of an example of a sensing scenario according to an embodiment of the present application;

[0111] FIG. 2B is a schematic diagram of another example of a sensing scenario according to an embodiment of the present application;

[0112] FIG. 3 is a schematic diagram of an embodiment of a sensing method according to an embodiment of the present application;

[0113] FIG. 4 is a schematic diagram of another embodiment of a sensing method according to an embodiment of the present application;

[0114] FIG. 5 is a schematic diagram of another embodiment of a sensing method according to an embodiment of the present application;

[0115] FIG. 6 is a schematic diagram of another embodiment of a sensing method according to an embodiment of the present application;

[0116] FIG. 7 is a schematic diagram of another embodiment of a sensing method according to an embodiment of the present application;

[0117] FIG. 8 is a schematic diagram of another embodiment of a sensing method according to an embodiment of the present application;

[0118] FIG. 9 is a schematic diagram of a structure of a communication apparatus according to an embodiment of the present application;

[0119] FIG. 10 is a schematic diagram of another structure of a communication apparatus according to an embodiment of the present application;

[0120] FIG. 11 is a schematic diagram of another structure of a communication apparatus according to an embodiment of the present application. DETAILED DESCRIPTION

[0121] The embodiments of the present application will be described below in conjunction with the accompanying drawings. It should be apparent that the described embodiments are merely a part of the embodiments of the present application and not all of the embodiments. It will be readily understood by those skilled in the art that the embodiments of the present application provided herein can be applied to other similar technical fields without departing from the spirit of the present application.

[0122] The terms "first", "second", and the like in the description and in the claims of the present specification and the above-described drawings are intended to distinguish similar objects and not necessarily to describe a particular order or sequence. It should be understood that the data thus designated can be interchanged where appropriate, so that the embodiments described herein can be carried out in other sequences than the one illustrated or described herein. Furthermore, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, a method, a system, a product, or an apparatus that comprises a list of steps or units is not necessarily limited to those steps or units that are clearly listed, but can include other steps or units that are not clearly listed or inherent to such processes, methods, products, or apparatuses.

[0123] The embodiment of the present application provides a perception method for improving the speed measurement performance of a perception target in a motion state. The present application also provides a corresponding device, a computer readable storage medium, and a computer program product, etc. The following are described in detail.

[0124] The technical solutions of the embodiment of the present application can be applied to various communication systems, such as satellite communication, a 5th generation (5G) system or new radio (NR), a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD), a universal mobile telecommunication system (UMTS), a mobile communication system after the 5G network (for example, a 6G mobile communication system), a vehicle to everything (V2X) communication system, and the like.

[0125] The communication system described above has stronger communication capability and also has perception capability, and is an integrated sensing and communication (ISAC) communication system. The integrated sensing and communication communication system refers to a communication system that can not only communicate through a communication signal (the communication signal can also be described as a communication channel), but also perform sensing measurement through a sensing signal (the sensing signal can also be described as a sensing channel).

[0126] In the present application, "perception" refers to using the transmission, reflection, and scattering of radio waves (radio frequency signals) to perceive the surrounding environment and detect targets, for example, in vehicle networking, other vehicles or objects around the vehicle are perceived through sensing signals; in an imaging system, sensing signals are used to image target points (tangible objects such as buildings and vehicles) in the environment. Of course, the communication system of the present application can also be an industrial automation system and other communication systems that may involve sensing.

[0127] The communication system of the present application can be an orthogonal frequency division multiplexing (OFDM) and / or time division multiplexing (TDM) based communication system, or a frequency modulated continuous waveform (FMCW) based communication system or communication and sensing system.

[0128] For the convenience of understanding, the technical terms related to the embodiments of the present application are briefly introduced as follows:

[0129] 1. Multiple-Input Multiple-Output (MIMO): a wireless communication technology, which refers to a technology of using multiple antennas to transmit and receive signals. The technology is introduced into the field of radar for perception, and a MIMO radar system can use fewer transmitting antennas and receiving antennas to obtain better spatial resolution, wherein the transmitting antennas can also be referred to as transmitting ports, and the receiving antennas can also be referred to as receiving ports. A MIMO communication system usually includes one or more network devices and one or more terminal devices. An example of the structure of a MIMO communication system can be understood with reference to FIG. 1A, as shown in FIG. 1A, the MIMO communication system includes multiple network devices and multiple terminal devices, such as network device 1 and network device 2, terminal device 1, terminal device 2 and terminal device 3. Network device 1 and network device 2 can communicate in MIMO mode, and network device 1 can also communicate with terminal device 1, terminal device 2 and terminal device 3 in MIMO mode, that is, multiple transmitting antennas transmit signals and multiple receiving antennas receive signals. In MIMO perception, the signals transmitted by the transmitting antennas are usually orthogonal signals, so that different transmitting channels can be separated during signal processing, and further, when the number of transmitting antennas is M and the number of receiving antennas is N, MxN times signal processing gain can be obtained through the processing of the receiving end.

[0130] 2. Orthogonal signal: a kind of special signal, whose autocorrelation function has the form of ideal impulse function, and the cross-correlation function is zero. However, such ideal signal does not exist, and only quasi-orthogonal signal can be designed, that is, to make the autocorrelation sidelobes and cross-correlation of the signal as low as possible. In this application, quasi-orthogonal signal and orthogonal signal are no longer distinguished, and orthogonal signal is used as a general term. Generally speaking, the common ways to realize orthogonal signal include time division multiple access (TDMA), frequency division multiple access (FDMA), code division multiple access (CDMA), doppler diversity multiple access (DDMA), and empty-band-based DDMA. Therefore, TDMA, FDMA, CDMA, DDMA, and empty-band-based DDMA can also be called types of orthogonal signal. Different types of orthogonal signal have certain limitations and application scenarios, and the appropriate orthogonal signal needs to be selected according to the requirements in actual use.

[0131] 3. TDMA: a most intuitive way to realize signal orthogonality, that is, the transmitting antenna alternately transmits its own signal, and there is no overlap in time between any two transmissions. As shown in FIG. 1B, signal 1 and signal 2 are alternately transmitted at different times in the same frequency band (freq). The period between signal 1 and signal 2 is a time domain period Tc. Signal 1 and signal 2 can be a block, which can be a resource block (RB). A frame can include multiple blocks. TDMA can realize relatively ideal orthogonality, the separation of the transmission channel is simple and easy to implement, but TDMA does not fully utilize the transmission resources, and there is no signal gain, so the signal to noise ratio (SNR) is low.

[0132] 4. FDMA: refers to transmitting different signals using different frequencies at the same time. As shown in FIG. 1C, signal 1, signal 2, signal 3, and signal 4 are transmitted at different frequencies at the same time. Using the FDMA method, the transmission resources can be better utilized, and the SNR is higher.

[0133] 5. CDMA: Different signals transmitted by different antennas are encoded using different coding strategies so that they can be separated and decoded at the receiving end. As shown in FIG. ID, signal 1 transmitted by transmitting antenna TX1 is encoded using coding strategy 1 (code 1), and signal 2 transmitted by transmitting antenna TX2 is encoded using coding strategy 2 (code 2). CDMA can achieve general orthogonality, but it can utilize all the transmission resources and has a high SNR.

[0134] 6. DDMA: DDMA has multiple forms, which can set differences in transmission frequencies to achieve separation purposes, or set differences in phases to achieve separation effects. FIG. IE shows an implementation of setting differences in phases. The initial phases of signals A, B, C, and D transmitted by the four TXs are all 0, but the front and back chirps of each transmitting antenna are offset by a specific phase value, so that the signals of different transmitting antennas can be separated in the Doppler domain. Similarly, DDMA utilizes all the transmission resources and has a high SNR, but requires high precision for phase control.

[0135] 7. Empty-band-based DDMA: The empty-band-based DDMA inherits the advantages of DDMA, and can further expand the maximum unambiguous velocity range under the condition of meeting the requirements. As shown in FIG. IF, an empty band is inserted between multiple transmitting antennas, such as B and C in FIG. IE. The position of the empty band can be used to achieve velocity de-aliasing, but the requirement for phase control is high.

[0136] 8. Sensing node: A communication device for sensing, which can include a transmitting end (Tx), a receiving end (Rx), or a transceiver integrated communication device.

[0137] 9. Transmitting end: A communication device that transmits communication signals or / and sensing signals (SS), which can also be referred to as a transmitting node or a transmitting device.

[0138] 10. Receiving end: A communication device that receives communication signals and / or echo signals of sensing signals, which can also be referred to as a receiving node or a receiving device.

[0139] 11. Sensing signal: refers to a radio frequency signal used for sensing an environment or a sensing target. The SS can be a sensing reference signal (SRS), a positioning reference signal (PRS), or a sounding reference signal (SRS), etc. The sensing signal can be transmitted in the form of a beam.

[0140] 12. Echo signal (ES): refers to a signal after the sensing signal is transmitted, reflected, or scattered. The sensing result can be determined by measuring the echo signal. The echo signal can be received by a beam.

[0141] 13. Sensing target: refers to a target object in an environment, such as a drone, a car, a mobile phone, a building, etc.

[0142] The sensing method provided by the embodiments of the present application can be applied to a dual-base joint sensing scenario or a single-base joint sensing scenario. The dual-base joint sensing scenario refers to a joint sensing scenario with separate transmission and reception. The transmitting end of the sensing signal and the receiving end of the echo signal are not the same communication device. The single-base joint sensing scenario refers to a joint sensing scenario with integrated transmission and reception. The transmitting end of the sensing signal and the receiving end of the echo signal belong to the same communication device. The single-base joint sensing scenario can also be referred to as a self-sensing scenario.

[0143] The dual-base joint sensing scenario can be understood with reference to FIG. 2A. As shown in FIG. 2A, the dual-base joint sensing scenario includes two transmitting ends, two receiving ends, a sensing target, and a central node. The two transmitting ends are transmitting end Tx201 and transmitting end Tx202, respectively. The two receiving ends are receiving end Rx203 and receiving end Rx204, respectively. The sensing target can be in a motion state, such as sensing target 1, sensing target 2, and sensing target 3 in FIG. 2A. Of course, the sensing target can also be a stationary object, such as a building.

[0144] The central node 205 can determine signal configuration parameter 1 and signal configuration parameter 2, and transmit the signal configuration parameter 1 to the transmitting end Tx201 and the signal configuration parameter 2 to the transmitting end Tx202. Of course, the central node 205 can also determine receiving parameter 1 and receiving parameter 2, and transmit the receiving parameter 1 to the receiving end Rx203 and the receiving parameter 2 to the receiving end Rx204.

[0145] The central node 205 is a node that configures sensing parameters for the transmitting end of the sensing signal or the receiving end of the sensing signal, and / or a node that aggregates sensing results. The central node can be an access network device or a chip in an access network device. Of course, the central node can also be other forms of devices.

[0146] The transmitting end Tx 201 transmits SS1 according to the signal configuration parameter 1, and the echo signal ES1 generated by the sensing target 1 is received by the receiving end Rx 203. The transmitting end Tx 201 transmits SS2 according to the signal configuration parameter 1, and the echo signal ES2 generated by the sensing target 2 is received by the receiving end Rx 203;

[0147] The transmitting end Tx 202 transmits SS3 according to the signal configuration parameter 2, and the echo signal ES3 generated by the sensing target 2 is received by the receiving end Rx 204. The transmitting end Tx 202 transmits SS4 according to the signal configuration parameter 2, and the echo signal ES4 generated by the sensing target 3 is received by the receiving end Rx 204.

[0148] It should be noted that SS1 and SS2, or SS3 and SS4 can be sensing signals transmitted by the same transmitting beam, and the sensing signals in the range of the transmitting beam will encounter sensing targets at different positions to generate echo signals in different directions, such as ES1, ES2, ES3, and ES4, which can be received by different receiving ends. Of course, SS1 and SS2 can also be sensing signals in different beams of the transmitting end Tx 201, and SS3 and SS4 can also be sensing signals in different beams of the transmitting end Tx 202.

[0149] In the dual-base joint sensing scenario, the echo signals generated by the sensing signals transmitted by the same transmitting end can be received by different receiving ends, such as ES2 received by the receiving end Rx 203 and ES3 received by the receiving end Rx 204. The echo signals generated by the sensing signals transmitted by different transmitting ends can also be received by the same receiving end, such as ES2 and ES3 both received by the receiving end Rx 203. Of course, the echo signals generated by the sensing signals transmitted by the same transmitting end can also be received only by the same receiving end. The correspondence between the transmitting end and the receiving end is not limited by the present application, and is related to the number of transmitting ends or receiving ends in a certain area. Regardless of which scenario, the receiving end can determine the sensing result according to the received echo signals, and of course, the receiving end can also send the relevant data in the received echo signals to other communication devices to determine the sensing result.

[0150] It should be noted that the above process can also not require the center node 205 to participate, and the receiving end Rx 203 or Rx 204 can implement the function of determining and sending the signal configuration parameter 1 or the signal configuration parameter 2 by the center node. Or, the transmitting end Tx 201 determines the signal configuration parameter 1 by itself, and the transmitting end Tx 202 determines the signal configuration parameter 2 by itself, and then the transmitting end Tx 201 transmits the sensing signals SS1 and SS2 according to the signal configuration parameter 1; the transmitting end Tx 202 transmits the sensing signals SS3 and SS4 according to the signal configuration parameter 2.

[0151] The single-base joint sensing scenario can be understood with reference to FIG. 2B. As shown in FIG. 2B, the single-base joint sensing scenario can include two measurement nodes, a center node, and a sensing target. The two measurement nodes are measurement node 211 and measurement node 212, which can both transmit sensing signals and receive echo signals.

[0152] When the measurement nodes sense the sensing target in the measurement environment, the measurement nodes can transmit one or more beams, and the sensing signals SS on the one or more beams can probe different positions of the sensing target. Then, the measurement nodes receive corresponding echo signals ES, and can determine the sensing result according to the ES. Of course, the measurement nodes can also send relevant data in the received echo signals to other communication devices, and the other communication devices determine the sensing result.

[0153] As shown in FIG. 2B, the center node 205 determines the signal configuration parameter 1 and the receiving parameter 1 for the measurement node 211, and sends the signal configuration parameter 1 and the receiving parameter 1 to the measurement node 211. The measurement node 211 generates and transmits SS1 and SS2 according to the signal configuration parameter 1, and then receives ES1 and ES2; the measurement node 112 generates and transmits SS3 and SS4 according to the signal configuration parameter 2, and receives ES3 and ES4.

[0154] It should be noted that in the above FIG. 2A or FIG. 2B, SS1 and SS2 can be sensing signals sent through different transmission ports of the transmission end Tx201 or the measurement node 211, or sensing signals sent through the same transmission port at different times. Similarly, SS3 and SS4 can be sensing signals sent through different transmission ports of the transmission end Tx202 or the measurement node 212, or sensing signals sent through the same transmission port at different times.

[0155] In the scenarios described in the above FIG. 2A and FIG. 2B, there are multiple receiving ends, transmission ends, or measurement nodes. In fact, there can be one receiving end, one transmission end, or one measurement node, and the measurement of different positions of the sensing target can be achieved by adjusting the angle of the receiving end, the transmission end, or the measurement node. Therefore, the number of receiving ends, transmission ends, or measurement nodes is not limited in the present application, and can be one or more.

[0156] In the scenarios described in the above FIG. 2A and FIG. 2B, the receiving end, the transmission end, or the measurement node can be referred to as a sensing node. The receiving end, the transmission end, the measurement node, and the center node can be terminal devices or access network devices. The specific forms of the receiving end, the transmission end, the measurement node, and the center node shown in the above FIG. 2A and FIG. 2B are not limited in the present application.

[0157] The terminal equipment and access network equipment of this application are described below.

[0158] The terminal device can be a wireless terminal device capable of receiving scheduling and instruction information from access network devices. The wireless terminal device can be a device that provides voice and / or data connectivity to the user, a handheld device with wireless connectivity, another processing device connected to a wireless modem, or a device with sensing capabilities.

[0159] Terminal equipment, also known as user equipment (UE), mobile station (MS), or mobile terminal (MT), is a device that includes wireless communication and / or sensing functions (providing voice or data connectivity to the user). Examples include handheld devices with wireless connectivity or in-vehicle devices. Currently, some examples of terminal equipment include: mobile phones, tablets, laptops, PDAs, drones, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in vehicle-to-everything (V2X) communication, wireless terminals in self-driving cars, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, and wireless terminals in smart homes. For example, wireless terminals in the Internet of Vehicles (IoV) can be in-vehicle equipment, vehicle-mounted equipment, in-vehicle modules, and vehicles themselves. Wireless terminals in industrial control can be cameras, robots, etc. Wireless terminals in smart homes can be televisions, air conditioners, robot vacuums, speakers, set-top boxes, etc.

[0160] Access network equipment is a device deployed in a radio access network (RAN) that provides wireless communication and / or sensing functions to terminal devices. For example, an access network device can be a RAN node that connects terminal devices to a wireless network. Access network equipment can also be a device deployed in a RAN that can communicate with other access network devices and provide wireless communication and / or sensing functions between access network devices.

[0161] 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 NodeB, or a home Node B, HNB), a baseband unit (BBU), an access point (AP) in a wireless fidelity (WIFI) system, a wireless relay node, 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) in a new radio (NR) system, a transmission reception point (TRP), a transmission point (TP); 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 baseband unit (BBU), or a distributed unit (DU), and the like.

[0162] In some deployments, a gNB can include a centralized unit (CU) and a DU. The gNB can also include an active antenna unit (AAU). The CU implements part of the functions of the gNB, and the DU implements part of the functions of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, implementing the radio resource control (RRC), and the functions of the packet data convergence protocol (PDCP) layer. The DU is responsible for processing the physical layer protocol and real-time services, implementing the functions of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical (PHY) layer. The AAU implements part of the physical layer processing functions, radio frequency processing, and related functions of the active antenna. The information of the RRC layer will eventually become the information of the PHY layer, or be converted from the information of the PHY layer. Therefore, under this architecture, high-layer signaling (such as RRC layer signaling) can also be considered as being sent by the DU, or being sent by the DU and the AAU. It can be understood that the access network device can be a device including one or more of the CU node, the DU node, and the AAU node. In addition, the CU can be divided into an access network device in the radio access network (RAN), or can be divided into an access network device in the core network (CN), which is not limited in the present application.

[0163] The communication system and the application scenario are introduced above, and the sensing method provided by the embodiments of the present application is introduced below in combination with the interaction process of the first communication device and the second communication device.

[0164] In the present application, the first communication device can be a center node in the sensing scenario described above. The second communication device can be a transmitting end of a sensing signal, or a measurement node with a transceiver, and the like. The second communication device can be an access network device, a terminal device, or a chip in the access network device, a chip in the terminal device, and the second communication device can have one or more.

[0165] As shown in FIG. 3, the sensing method provided by the embodiments of the present application includes:

[0166] S301. The first communication device determines the signal configuration parameter of the second transmission port according to the speed measurement requirement, the parameter of the carrier, the number of the first transmission port, and the first modulation type.

[0167] The second transmitting port is included in the first transmitting port, and the first modulation type is at least one of signal modulation types supported by the first transmitting port.

[0168] In this application, the speed measurement requirement can include a maximum speed and a minimum speed that need to be perceived; or, scene indication information, which is used to indicate a speed range that needs to be perceived.

[0169] In this application, the parameters of the carrier can include the wavelength, frequency or pulse repetition frequency (PRF) of the carrier.

[0170] In this application, the modulation type can be the type of orthogonal signal, such as TDMA, FDMA, CDMA, DDMA, and space-based DDMA as described above.

[0171] In this application, the second transmitting port is included in the first transmitting port means that the second transmitting port is part or all of the first transmitting port.

[0172] In this application, the signal configuration parameter refers to the parameter required for generating the perception signal of the second transmitting port, such as the index of the second transmitting port, the first modulation type, etc.

[0173] S302. The first communication device sends the signal configuration parameter to the second communication device. Correspondingly, the second communication device receives the signal configuration parameter.

[0174] S303. The second communication device generates the perception signal corresponding to the second transmitting port according to the signal configuration parameter.

[0175] S304. The second communication device sends the perception signal through the second transmitting port.

[0176] The scheme provided by the embodiments of this application can determine the signal configuration parameter of the second transmitting port based on the speed measurement requirement, the parameters of the carrier, the number of the first transmitting port, and the first modulation type; in this way, the perception signal sent based on the signal configuration parameter can better measure the moving perception target within the speed measurement requirement range, thereby improving the speed measurement performance and enhancing the perception quality.

[0177] Optionally, the above S301 can include S301a and S301b.

[0178] S301a. The first communication device determines the first time domain period according to the speed measurement requirement, the parameters of the carrier, and the number of the first transmitting port.

[0179] In this application, the process of determining the first time domain period can be implemented in different ways, respectively as follows:

[0180] Manner one

[0181] In this application, the first communication device can determine the first time domain period according to the relationship T c = λ / (N t ΔV), wherein λ represents the wavelength of the carrier, N t represents the number of first transmission ports, and ΔV represents the speed measurement range.

[0182] If the speed measurement requirement is the maximum speed V max and the minimum speed V min that need to be perceived, then ΔV is determined by V max and V min , that is, ΔV = (V max -V min ).

[0183] If the speed measurement requirement is given by the scene indication information, then ΔV can be determined by the scene indication information. The scene indication information can indicate a static scene, a low-speed scene, a high-speed scene, etc. Among them, the static scene is, for example, a scene of perceiving a static perception target such as a building; the low-speed scene is, for example, a scene of perceiving a perception target with a relatively low speed such as a pedestrian / bicycle; and the high-speed scene is, for example, a scene of perceiving a perception target with a relatively high speed such as a car / train / drone. Different perception scenes usually have corresponding speed measurement ranges, so that the ΔV of the corresponding scene can be determined.

[0184] Manner two

[0185] In this application, the first communication device can determine the first time domain period by table lookup, as shown in Table 1:

[0186] Table 1: Time domain period and corresponding maximum speed measurement range

[0187] In Table 1, N t represents the number of first transmission ports, (V max -V min ) represents the speed measurement range, which can be determined according to the speed measurement requirement, and f represents the frequency of the carrier. Under different frequencies, different time domain periods correspond to different maximum speed measurement ranges, for example: f = 3.5 GHz, Tc = 0.001 s, the maximum speed measurement range is 42.8 / 21.4, wherein 42.8 is the speed measurement range of one-way reception, and 24.1 is the speed measurement range of round-trip transmission and reception. Similarly, if f is known, after determining the maximum speed measurement range, the corresponding time domain period can be determined by Table 1. For example: if f = 3.5 GHz, the determined maximum speed measurement range is 42.8 / 21.4, then the first time domain period can be determined as 0.001 s.

[0188] Method three:

[0189] In the present application, the first communication device can determine the first time domain period T T by the relationship PRF = 1 / (N c *T c , where PRF represents the pulse repetition frequency, and N t represents the number of the first transmitting ports. In this way, after PRF and N t are known, T T can be determined by PRF = 1 / (N c *T c .

[0190] S301b. The first communication device determines the signal configuration parameters of the second transmitting ports according to the first modulation type, the first time domain period, and the number of the first transmitting ports.

[0191] In the present application, the first communication device can also determine the first modulation type satisfying the signal-to-noise ratio requirement according to the signal-to-noise ratio requirement and the signal modulation types supported by the first transmitting ports. In this way, the range of the modulation types of the sensing signal can be narrowed, so as to determine a more suitable modulation type for the sensing signal. In this way, not only the sensing resources can be saved, but also the speed measurement performance can be improved.

[0192] The process of determining the first modulation type satisfying the signal-to-noise ratio requirement can be: first calculating the signal-to-noise ratios of various signal modulation types supported by the first transmitting ports, and then comparing them with the signal-to-noise ratio threshold given by the signal-to-noise ratio requirement.

[0193] The process of calculating the signal-to-noise ratios of various signal modulation types can be:

[0194] According to the relationship , the signal-to-noise ratios of various signal modulation types can be calculated. Wherein, P port represents the transmitting power of the first transmitting ports, T c represents the first time domain period, and E noise represents the noise energy of the first transmitting ports; according to the relationship, the SNR0 can be calculated by P port , T c , and E noise .

[0195] If the signal modulation type is TDMA, SNR all = SNR0, that is, the signal-to-noise ratio SNR all corresponding to TDMA is equal to SNR0.

[0196] If the signal modulation type is CDMA, FDMA, DDMA, or DDMA based on empty bands, SNRall = SNR0 + 10*logN t , that is, the signal-to-noise ratio SNR corresponding to CDMA, FDMA, DDMA or DDMA based on empty bands all On the basis of SNR0, 10*logN is further added t , N t is the number of first transmission ports.

[0197] If the signal modulation type is in the form of a mixture of TDMA and CDMA, FDMA, DDMA or DDMA based on empty bands, then SNR all = SNR0 + 10*log n t , that is, the signal-to-noise ratio SNR corresponding to the mixture of TDMA and CDMA, FDMA, DDMA or DDMA based on empty bands all On the basis of SNR0, 10*log n is further added t , wherein n t is the number of transmission ports of the simultaneously transmitted signals.

[0198] After SNR all is determined, SNR all can be determined according to the signal-to-noise ratio requirement SNR, and the modulation type with SNR max ≥ SNR is the first modulation type.

[0199] In addition, in the embodiments of the present application, the range of the first modulation type can be narrowed based on the speed measurement range of the first modulation type or further narrowed on the basis of the signal-to-noise ratio requirement, so that the quality of the perceived signal can be further improved.

[0200] The scheme of narrowing the range of the first modulation type by using the speed measurement range can be: determining whether the speed measurement requirement falls within the speed measurement range of the first modulation type.

[0201] When the first modulation type is TDMA, DDMA or binary code division multiple access in CDMA, the speed measurement range is: V max ≤ λ / 4N t T c , V min ≥ -λ / 4N t T c ;

[0202] When the first modulation type is Doppler multiple access based on empty bands, the speed measurement range is related to the number of targets within the resolution unit .

[0203] Wherein, V max represents the upper limit of the speed measurement range, V min represents the lower limit of the speed measurement range, N t represents the number of second transmission ports, Tc λ represents the time-domain period of each signal pulse, and λ represents the wavelength of the carrier wave.

[0204] in, At that time, V max ≤λ / 4T c V min ≥-λ / 4T c ,when At that time, V max ≤λ / 4(N t +N empty )T c V min ≥; N empty The number of empty bands.

[0205] In this embodiment, different modulation types have different speed measurement ranges, which is beneficial for accurately selecting the first modulation type of the sensing signal.

[0206] In this embodiment, the first communication device can determine a second transmission port for transmitting sensing signals from the first transmission ports. For example, if there are 16 first transmission ports, 8 can be selected for transmitting sensing signals; these 8 transmission ports are then the second transmission ports. Of course, this is just an example; the first communication device can select fewer than 8 or more transmission ports as second transmission ports based on the requirements for transmitting sensing signals. Alternatively, all 16 first transmission ports can be designated as second transmission ports.

[0207] Each first transmit port has an index, which can be represented in binary form. For example, if there are 16 first transmit ports, their indices can be: 0000, 0001, 0010, 0011, 0100, 0101, 0110, 0111, 1000, 1001, 1010, 1011, 1100, 1101, 1110, 1111.

[0208] Of course, the indices of these 16 first transmission ports can also be represented in other forms, such as 0, 1, 2, ... 15; or other forms. This application does not limit this.

[0209] If the first communication device selects the first four transmission ports from the 16 first transmission ports as the second transmission ports, then the indices of these four second transmission ports can be 0000, 0001, 0010 and 0011.

[0210] In the embodiments of the present application, the corresponding signal configuration parameters can be configured in advance for different time domain periods of various modulation types, as shown in Tables 2 to 6, which exemplify the signal configuration parameter tables of TDMA, FDMA, CDMA, DDMA, and DDMA based on empty bands.

[0211] Table 2: TDMA signal configuration parameter table

[0212] In Table 2, T c = 0.001, the corresponding time interval is 80us, and the value of n can be determined by the number of the second transmitting ports, for example, if the number of the second transmitting ports is 4, then n = 2, and if the number of the second transmitting ports is 8, then n = 3. Here, n represents the quantity indication information of the sensing signals. Of course, if the number of the second transmitting ports is not 2 n , the quantity of the sensing signals can be indicated by other ways.

[0213] After the first communication device determines the first time domain period and the first modulation type as TDMA, the corresponding signal configuration parameters can be determined by Table 2. For example, if the first time domain period = 0.001s, it can be determined that the time interval of the sensing signal transmission is 80us, that is, the second transmitting port transmits a sensing signal every 80us.

[0214] Table 3: FDMA signal configuration parameter table

[0215] In Table 3, T c = 0.001, the corresponding subcarrier interval is 15KHz, and the value of n can be understood by referring to the introduction in Table 2.

[0216] After the first communication device determines the first time domain period and the first modulation type as FDMA, the corresponding signal configuration parameters can be determined by Table 3. For example, if the first time domain period = 0.001s, it can be determined that the subcarrier interval of the sensing signal transmission is 15KHz, that is, if the frequency domain of the sensing signal 1 and the sensing signal 2 belongs to two adjacent signals, the subcarrier interval between the sensing signal 1 and the sensing signal 2 is 15KHz; if the frequency domain of the sensing signal 3 and the sensing signal 2 belongs to two adjacent signals, the subcarrier interval between the sensing signal 2 and the sensing signal 3 is 15KHz; at this time, the subcarrier interval between the sensing signal 1 and the sensing signal 3 can be 30KHz.

[0217] Table 4: CDMA signal configuration parameter table

[0218] In Table 4, T cWhen n = 0.001, the corresponding signal coding strategy is coding strategy 1, and the value of n can be understood by referring to the introduction of Table 2.

[0219] The first communication device determines the first time domain period, and after determining that the first modulation type is CDMA, the corresponding signal configuration parameter can be determined by referring to Table 4. For example, if the first time domain period = 0.001 s, it can be determined that the signal coding strategy of the sensing signal is coding strategy 1. That is, the sensing signal is encoded by using coding strategy 1.

[0220] Table 5: DDMA signal configuration parameter table

[0221] In Table 5, T c When n = 0.001, the corresponding signal phase offset is phase offset 1, and the value of n can be understood by referring to the introduction of Table 2.

[0222] The first communication device determines the first time domain period, and after determining that the first modulation type is DDMA, the corresponding signal configuration parameter can be determined by referring to Table 5. For example, if the first time domain period = 0.001 s, it can be determined that the phase offset of the sensing signal is phase offset 1. That is, the phase offset between adjacent sensing signals is phase offset 1, and the phase offset can be understood by referring to the principle of subcarrier spacing.

[0223] In addition, the DDMA based on the empty band can be understood by referring to Table 5. It is possible to increase the indication information of the number N empty of empty bands in the signal configuration parameter in the possible empty band based DDMA.

[0224] It should be noted that each row index in Tables 2 to 5 is associated with a row of data, and of course, Tables 2 to 5 can not include the row index of the first column.

[0225] No matter whether the first modulation type belongs to one or a combination of the above-mentioned TDMA, FDMA, CDMA, DDMA, or empty band based DDMA, the signal configuration parameter can include the index of the second transmission port and the first mapping relationship, and the first mapping relationship includes the mapping relationship between the index of the second transmission port and the configuration information of the sensing signal.

[0226] Taking the case that the first communication device determines four second transmission ports as an example, the first mapping relationship can include:

[0227] <Second transmission port 1 (such as 0000), configuration information of sensing signal 1>;

[0228] <Second transmission port 2 (such as 0001), configuration information of sensing signal 2>;

[0229] <Second transmission port 3 (e.g., 0010), configuration information of sensing signal 3>;

[0230] <Second transmission port 4 (e.g., 0011), configuration information of sensing signal 4>.

[0231] The first mapping relationship can be understood as a combination of a plurality of key-value pairs, and the index of the second transmission port is used as the key to determine the configuration information of the corresponding sensing signal.

[0232] Therefore, S303 can optionally include S303a.

[0233] S303a. The second communication device determines, according to the index of the second transmission port, the configuration information of the sensing signal of the second transmission port from the first mapping relationship.

[0234] For example, after the first communication device sends the indexes of the four second transmission ports (e.g., 0000, 0001, 0010, and 0011) and the four key-value pairs in the above first mapping relationship to the second communication device, the second communication device can determine, according to the index 0000 of the second transmission port, that the configuration information of the corresponding sensing signal is the configuration information of sensing signal 1. Similarly, the configuration information of sensing signal 2 can also be determined according to the index 0001 of the second transmission port, the configuration information of sensing signal 3 can be determined according to the index 0010 of the second transmission port, and the configuration information of sensing signal 4 can be determined according to the index 0011 of the second transmission port.

[0235] In the embodiments of the present application, the configuration information of the sensing signal can include indication information of the first modulation type, retrieval information, and relationship information. The following will be introduced respectively:

[0236] 1. Indication information of the first modulation type;

[0237] The indication information of the first modulation type is used to determine the first modulation type by the second communication device.

[0238] The indication information of the first modulation type can be represented in binary form, such as the indication information of the first modulation type is represented by a first bit and / or a second bit in a plurality of bit positions, and the first bit and the second bit are respectively associated with different first modulation types.

[0239] The first bit can be one or more bits in the front of the multiple bits, and the second bit can be one or more bits after the first bit. For example, if two bits are used to represent the first modulation type, such as XY, where X can be the first bit and Y can be the second bit, X can be associated with a modulation type, such as FDMA, and Y can be associated with another modulation type, such as TDMA. If XY is 10, it can indicate that the first modulation type is FDMA; if XY is 01, it can indicate that the first modulation type is TDMA; and if XY is 11, it can indicate that the first modulation type is FDMA+TDMA. Of course, the indication information of the first modulation type can also be used to represent more modulation types through more bits, such as XYZWQ, where X, Y, Z, W, and Q can be associated with different modulation types, respectively.

[0240] In addition, in the embodiments of the present application, the number of bits of the indication information of the first modulation type can also be related to the number of second transmission ports. For example, if there are 16 second transmission ports, 8-bit data can be used to map the modulation type, that is, 11110000, where the first 4 bits 1111 can be associated with FDMA, and the last 4 bits 0000 can be associated with TDMA.

[0241] In addition, if the indexes of the 16 second transmission ports are represented in the form of 8-bit data, if the index of the second transmission port is mapped on the first 4 bits, it can indicate that the first modulation type of the sensing signal of the second transmission port is FDMA; if the index of the second transmission port is mapped on the last 4 bits, it can indicate that the first modulation type of the sensing signal of the second transmission port is TDMA. If the index of the second transmission port is mapped on both the first 4 bits and the last 4 bits, it can indicate that the first modulation type of the sensing signal of the second transmission port is FDMA+TDMA. In this way, the first modulation type can be represented, and the amount of data transmission can be reduced.

[0242] It should be noted that the modulation types associated with the different bits described above are only described by taking FDMA and TDMA as examples. In fact, the bits represented by X or Y can also be associated with CDMA, DDMA, etc., which is not limited in the present application.

[0243] 2. search information;

[0244] The search information is used by the second communication device to search for the basic information of the sensing signal under the first modulation type. For example, the search information is used to search for the basic information from a table. The search information can include a row index in the table or a first time domain period.

[0245] The basic information includes a number indication of the sensing signals, and at least one of a subcarrier spacing of frequency division multiple access, a time interval of time division multiple access, a signal coding strategy of code division multiple access, or a phase offset of Doppler multiple access.

[0246] The second communication device is also pre-configured with the above Tables 2-5.

[0247] If the first modulation type is TDMA, the search information is a first time domain period T c , T c = 0.001, the second communication device can determine that T c = 0.001 is used to determine from Table 2 that the corresponding time interval is 80us.

[0248] If the first modulation type is FDMA, the search information is a first time domain period T c , T c = 0.001, the second communication device can determine that T c = 0.001 is used to determine from Table 3 that the corresponding subcarrier spacing is 15KHz.

[0249] If the first modulation type is CDMA, the search information is a first time domain period T c , T c = 0.001, the second communication device can determine that T c = 0.001 is used to determine from Table 4 that the corresponding coding strategy is coding strategy 1.

[0250] If the first modulation type is DDMA, the search information is a first time domain period T c , T c = 0.001, the second communication device can determine that T c = 0.001 is used to determine from Table 5 that the corresponding phase offset is phase offset 1.

[0251] 3. relationship information;

[0252] The relationship information is used to indicate a corresponding relationship between sensing signals of different second transmitting ports, or / and an order relationship between different sensing signals corresponding to a same second transmitting port.

[0253] If the first modulation type is TDMA, or multiple sensing signals are transmitted through a second transmitting port, the relationship information can indicate an order relationship between the multiple sensing signals, such as transmitting sensing signal 1, sensing signal 4, sensing signal 2 and sensing signal 3 through a second transmitting port, the second transmitting port will transmit the sensing signal 1, the sensing signal 4, the sensing signal 2 and the sensing signal 3 in turn according to the time interval of 80us.

[0254] If the first modulation type is FDMA, the second relationship can indicate the corresponding relationship between the sensing signals of different transmission ports. For example:

[0255] The corresponding relationship is sensing signal 1 (sensing signal of transmission port 0000), sensing signal 2 (sensing signal of transmission port 0001), sensing signal 3 (sensing signal of transmission port 0010), and sensing signal 4 (sensing signal of transmission port 0011). The corresponding relationship indicates that the subcarrier spacing between sensing signal 2 and sensing signal 1 is 15 KHz; the subcarrier spacing between sensing signal 3 and sensing signal 2 is 15 KHz, the subcarrier spacing between sensing signal 3 and sensing signal 1 is 30 KHz; the subcarrier spacing between sensing signal 4 and sensing signal 3 is 15 KHz; the subcarrier spacing between sensing signal 4 and sensing signal 2 is 30 KHz, and the subcarrier spacing between sensing signal 4 and sensing signal 1 is 45 KHz.

[0256] If the corresponding relationship is sensing signal 1 (sensing signal of transmission port 0000), sensing signal 4 (sensing signal of transmission port 0011), sensing signal 2 (sensing signal of transmission port 0001), and sensing signal 3 (sensing signal of transmission port 0010), the corresponding relationship indicates that the subcarrier spacing between sensing signal 4 and sensing signal 1 is 15 KHz; the subcarrier spacing between sensing signal 2 and sensing signal 4 is 15 KHz, the subcarrier spacing between sensing signal 2 and sensing signal 1 is 30 KHz; the subcarrier spacing between sensing signal 3 and sensing signal 2 is 15 KHz, the subcarrier spacing between sensing signal 3 and sensing signal 4 is 30 KHz, and the subcarrier spacing between sensing signal 3 and sensing signal 1 is 45 KHz.

[0257] The principle of phase offset of DDMA can also be understood by referring to the principle of FDMA subcarrier spacing.

[0258] If the index of a second transmission port is associated with TDMA and FDMA. Taking the four second transmission ports introduced above as an example, if the time intervals associated with the indexes of the four second transmission ports are all 80us, the four second transmission ports all transmit the sensing signals with the above-mentioned subcarrier spacing of 15 KHz according to the time interval of 80us. Specifically, the transmission port 0000 can transmit a sensing signal 1 every 80us, the transmission port 0001 can transmit a sensing signal 2 every 80us, the transmission port 0010 can transmit a sensing signal 3 every 80us, and the transmission port 0011 can transmit a sensing signal 4 every 80us. The subcarrier spacing between the sensing signals transmitted by the four second transmission ports can be understood according to the introduction of the corresponding relationship part above.

[0259] The above scheme provided by the embodiments of the present application can determine the first modulation type through the indication information of the first modulation type, and then can retrieve the basic information by combining the first modulation type through the retrieval information, and then can realize the accurate correspondence between the second transmitting port and the perception signal by combining the relationship information, so as to improve the accuracy of the perception signal.

[0260] In the above scheme, the first communication device and the second communication device are preconfigured with Table 2 to Table 5, so that only a small amount of signal configuration parameters need to be transmitted to the second communication device in the transmission process, and the second communication device can find the signal configuration parameters used to generate the perception signal. In this way, the air interface overhead can be saved.

[0261] Optionally, in the above perception method, the first communication device can further send the index of the receiving port and the first mapping relationship, and the first mapping relationship is used for the receiving port to process the echo signal of the perception signal.

[0262] The index of the receiving port refers to the port determined by the first communication device for the receiving end to receive the echo signal of the perception signal, and sending the first mapping relationship to the receiving end is beneficial to the corresponding receiving port of the receiving end to better process the echo signal of the perception signal.

[0263] The above scheme introduced in combination with FIG. 3 can be applied to different perception scenarios, which will be introduced in combination with the accompanying drawings.

[0264] As shown in FIG. 4, taking the first communication device as a central node and the second communication device as a transmitting end as an example, the perception method includes:

[0265] S401. The receiving end sends the perception area, the resolution performance requirement, and the speed requirement to the central node.

[0266] The speed requirement is represented by a speed setting or a scene setting, for example,

[0267] The speed setting: {V min ,V max}, and optionally, in the DDMA scene based on the air band, the speed setting can further include The role of can be understood by referring to the introduction of the speed range corresponding to the different modulation types.

[0268] The scene setting: setting scene indication information to indicate the perception scene, the perception scene can include a static scene, a low-speed scene or a high-speed scene, and the static scene, the low-speed scene or the high-speed scene can correspond to different speed ranges.

[0269] S402. The central node broadcasts a joint perception request.

[0270] S403. The transmitting end and the receiving end report the antenna panel configuration to the center node in response to the joint sensing request.

[0271] The antenna panel configuration can include the first number of transmitting ports, the number of receiving ports, etc. The transmitting end and the receiving end can also report the moving track of the transmitting port or the receiving port, so as to facilitate more accurate selection of the transmitting port for transmitting the sensing signal and the receiving port for receiving the echo signal of the sensing signal.

[0272] S404. The transmitting end sends the performance information to the center node.

[0273] The performance information can include the transmitting power P port supported by the transmitting port, and the type Type signal of the orthogonal signal supported by the transmitting port, that is, the type of the orthogonal signal is the type of signal modulation.

[0274] S405. The center node determines the second transmitting port participating in sensing and the receiving port participating in sensing according to the antenna panel configuration of the transmitting end and the antenna panel configuration of the receiving end.

[0275] S406. The center node determines the signal configuration parameter of the second transmitting port according to the speed measurement requirement, the parameter of the carrier, the number of the first transmitting port, and the first modulation type.

[0276] This step can be understood by referring to the corresponding part of FIG. 3.

[0277] S407. The center node sends the index of the second transmitting port and the first mapping relationship to the transmitting end.

[0278] S408. The center node sends the index of the receiving port and the first mapping relationship to the receiving end.

[0279] S409. The transmitting end transmits the sensing signal according to the signal configuration parameter.

[0280] This step can be understood by referring to the corresponding part of FIG. 3.

[0281] S410. The receiving end receives the echo signal.

[0282] The receiving end can receive the echo signal using the index of the receiving port participating in sensing. After receiving the echo signal, the receiving end can process the echo signal according to the first mapping relationship to determine the sensing result, or can forward the echo signal to other nodes for processing the echo signal to determine the sensing result. In this regard, the present application is not limited.

[0283] As shown in FIG. 5, taking the first communication device as the receiving end, that is, integrating the function of the center node corresponding to the content of FIG. 4 above in the receiving end, and taking the second communication device as the transmitting end as an example, the sensing method comprises:

[0284] S501. The receiving end acquires the sensing area, the resolution performance requirement, and the speed measurement requirement.

[0285] The process can be that the receiving end determines the sensing area, the resolution performance requirement, and the speed measurement requirement by itself; or that the receiving end receives the sensing area, the resolution performance requirement, and the speed measurement requirement from other nodes.

[0286] S502. The receiving end broadcasts the joint sensing request.

[0287] S503. The transmitting end reports the antenna panel configuration to the receiving end in response to the joint sensing request.

[0288] S504. The transmitting end sends the performance information to the receiving end.

[0289] S505. The receiving end determines the second transmitting port participating in sensing and the receiving port participating in sensing according to the antenna panel configuration of the transmitting end and the antenna panel configuration of the receiving end.

[0290] S506. The receiving end determines the signal configuration parameter of the second transmitting port according to the speed measurement requirement, the parameter of the carrier, the number of the first transmitting port, and the first modulation type.

[0291] The step can be understood by referring to the content of the corresponding part of FIG. 3.

[0292] S507. The center node sends the index of the second transmitting port and the first mapping relationship to the transmitting end.

[0293] S508. The transmitting end transmits the sensing signal according to the signal configuration parameter.

[0294] The step can be understood by referring to the content of the corresponding part of FIG. 3.

[0295] S509. The receiving end receives the echo signal.

[0296] As shown in FIG. 6, taking the first communication device as the transmitting end, that is, integrating the function of the center node corresponding to the content of FIG. 4 above in the transmitting end, the transmitting end is also the second communication device in this scenario, and the interaction process between the above first communication device and the second communication device can be cancelled, and the sensing method comprises:

[0297] S601. The receiving end sends the sensing area, the resolution performance requirement, and the speed measurement requirement to the transmitting end.

[0298] S602. The transmitting end broadcasts the joint sensing request.

[0299] S603. The receiving end reports the antenna panel configuration to the transmitting end in response to the joint sensing request.

[0300] S604. The transmitting end determines the second transmitting port participating in sensing and the receiving port participating in sensing according to the antenna panel configuration of the transmitting end and the antenna panel configuration of the receiving end.

[0301] S605. The transmitting end determines the signal configuration parameter of the second transmitting port according to the speed measurement requirement, the parameter of the carrier, the number of the first transmitting port, and the first modulation type.

[0302] This step can be understood by referring to the content of the corresponding part of FIG. 3.

[0303] S606. The transmitting end sends the index of the receiving port and the first mapping relationship to the receiving end.

[0304] S607. The transmitting end transmits the sensing signal according to the signal configuration parameter.

[0305] This step can be understood by referring to the content of the corresponding part of FIG. 3.

[0306] S608. The receiving end receives the echo signal.

[0307] As shown in FIG. 7, taking the first communication device as the center node and the second communication device as the transmitting end 1 and the transmitting end 2 as an example, the sensing method comprises the following steps:

[0308] S701. The receiving end sends the sensing area, the resolution performance requirement, and the speed measurement requirement to the center node.

[0309] S702. The center node broadcasts the joint sensing request.

[0310] S703. The transmitting end 1, the transmitting end 2, and the receiving end report the antenna panel configuration to the center node in response to the joint sensing request.

[0311] S704. The transmitting end 1 and the transmitting end 2 send the respective performance information to the center node.

[0312] S705. The center node determines the second transmitting port participating in sensing and the receiving port participating in sensing according to the antenna panel configuration of the transmitting end 1, the antenna panel configuration of the transmitting end 2, and the antenna panel configuration of the receiving end.

[0313] S706. The center node determines the signal configuration parameter of the second transmitting port according to the speed measurement requirement, the parameter of the carrier, the number of the first transmitting port, and the first modulation type.

[0314] This step can be understood by referring to the content of the corresponding part of FIG. 3.

[0315] S707. The central node sends the index of the corresponding second transmit port and the first mapping relationship to the first and second transmit ends respectively.

[0316] S708. The central node sends the index of the receive port and the first mapping relationship to the receive end.

[0317] S709. The first and second transmit ends transmit the sensing signal according to the respective signal configuration parameters.

[0318] This step can be understood by referring to the content of the corresponding part of FIG. 3.

[0319] S710. The receive end receives the echo signal.

[0320] As shown in FIG. 8, taking the first communication device as the central node and the second communication device as the measurement node as an example, the sensing method comprises:

[0321] S801. The measurement node sends the sensing area, the resolution performance requirement, and the speed measurement requirement to the central node.

[0322] S802. The central node broadcasts the joint sensing request.

[0323] S803. The measurement node reports the antenna panel configuration to the central node in response to the joint sensing request.

[0324] S804. The measurement node sends the performance information to the central node.

[0325] S805. The central node determines the second transmit port participating in sensing and the receive port participating in sensing according to the antenna panel configuration of the measurement node.

[0326] S806. The central node determines the signal configuration parameters of the second transmit port according to the speed measurement requirement, the parameters of the carrier, the number of the first transmit port, and the first modulation type.

[0327] This step can be understood by referring to the content of the corresponding part of FIG. 3.

[0328] S807. The central node sends the index of the second transmit port, the index of the receive port participating in sensing, and the first mapping relationship to the measurement node.

[0329] S808. The measurement node transmits the sensing signal according to the signal configuration parameters.

[0330] This step can be understood by referring to the content of the corresponding part of FIG. 3.

[0331] S809. The receive end receives the echo signal.

[0332] The above Figs. 4 to 8 exemplify several different scenarios. In fact, the application is not limited to the above scenarios, and the perception method of the application can also be applied to other scenarios with multiple transmitting ends, multiple receiving ends and multiple measurement nodes.

[0333] The above introduces the communication system and the perception method in the embodiments of the application. The communication device provided by the embodiments of the application is described below. Please refer to Fig. 9, which is a structural schematic diagram of a communication device according to an embodiment of the application. The communication device 900 can be used to execute the steps in the embodiments shown in Figs. 3 to 8. For details, please refer to the related description in the above method embodiments.

[0334] The communication device 900 includes a transceiver module 901 and a processing module 902. The transceiver module 901 can implement corresponding communication functions, and the processing module 902 is used for data processing. The transceiver module 901 can also be referred to as a communication interface or a communication unit.

[0335] Optionally, the communication device 900 can also include a storage unit, which can be used to store instructions and / or data. The processing module 902 can read the instructions and / or data in the storage unit, so that the communication device implements the above method embodiments.

[0336] The communication device 900 can be used to execute the actions in the above method embodiments. The communication device 900 can be a terminal device or an access network device, or a component or module configurable to a terminal device or an access network device. The transceiver module 901 is used to execute the receiving operations in the above method embodiments, and the processing module 902 is used to execute the processing operations in the above method embodiments.

[0337] Optionally, the transceiver module 901 can include a sending module and a receiving module. The sending module is used to execute the sending operations in the above method embodiments. The receiving module is used to execute the receiving operations in the above method embodiments.

[0338] It should be noted that the communication device 900 can include a sending module and not include a receiving module. Alternatively, the communication device 900 can include a receiving module and not include a sending module. Specifically, whether the sending module and the receiving module are included in the communication device 900 can depend on whether the above scheme executed by the communication device 900 includes sending actions and receiving actions.

[0339] As an example, the communication device 900 is used to execute the actions in the embodiment shown in Fig. 3.

[0340] The processing module 902 is configured to determine signal configuration parameters of a second transmitting port according to a speed measurement requirement, parameters of a carrier, a number of first transmitting ports and a first modulation type, wherein the second transmitting port is included in the first transmitting port, and the first modulation type is at least one of signal modulation types supported by the first transmitting port.

[0341] The transceiver module 901 is configured to transmit the signal configuration parameter, where the signal configuration parameter is used for the second transmitting port to transmit the sensing signal.

[0342] It should be understood that the specific process of each module performing the corresponding steps described above has been described in detail in the above method embodiments, and for the sake of brevity, will not be repeated here.

[0343] The processing module 902 in the above embodiments can be implemented by at least one processor or processor-related circuit. The transceiver module 901 can be implemented by a transceiver or transceiver-related circuit. The transceiver module 901 can also be referred to as a communication unit or a communication interface. The storage unit can be implemented by at least one memory.

[0344] The embodiments of the present application also provide another communication apparatus 1000. As shown in FIG. 10, the communication apparatus 1000 includes a processor 1010, and the processor 1010 is coupled with a memory 1020, the memory 1020 is used to store computer programs or instructions and / or data, and the processor 1010 is used to execute the computer programs or instructions and / or data stored in the memory 1020, so that the method in the above method embodiments is executed.

[0345] Optionally, the processor 1010 included in the communication apparatus 1000 is one or more.

[0346] Optionally, as shown in FIG. 10, the communication apparatus 1000 can also include the memory 1020.

[0347] Optionally, the memory 1020 included in the communication apparatus 1000 can be one or more.

[0348] Optionally, the memory 1020 can be integrated with the processor 1010 or separately arranged.

[0349] Optionally, as shown in FIG. 10, the communication apparatus 1000 can also include a transceiver 1030, and the transceiver 1030 is used for receiving and / or transmitting signals. For example, the processor 1010 is used to control the transceiver 1030 to receive and / or transmit signals.

[0350] As an option, the communication apparatus 1000 is used to implement the operations in the above method embodiments.

[0351] For example, the processor 1010 is used to implement the operations related to processing in the above method embodiments, and the transceiver 1030 is used to implement the operations related to transceiving in the above method embodiments.

[0352] The embodiment of the present application further provides a communication device 1000, which can be a terminal device or an access network device, and can also be a chip or a module in a terminal device or an access network device or a device of a core network. The communication device 1000 can be used to execute the operations in the method embodiments.

[0353] When the communication device 1000 is a communication device, FIG. 11 shows a simplified structural schematic diagram of the communication device. As shown in FIG. 11, the communication device includes a processor, a memory, a transceiver, wherein the memory can store computer program code, the transceiver includes a transmitter 1031, a receiver 1032, a radio frequency circuit (not shown in the figure), an antenna 1033 and an input and output device (not shown in the figure). The processor is mainly used for processing communication protocols and communication data, and controlling the communication device, executing software programs, processing data of the software programs and the like. The memory is mainly used for storing software programs and data. The radio frequency circuit is mainly used for conversion between baseband signals and radio frequency signals and processing of the radio frequency signals. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. The input and output device, such as a touch screen, a display screen, a keyboard and the like, is mainly used for receiving data input by a user and outputting data to the user. It should be noted that some types of communication devices can not have an input and output device.

[0354] When data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal, and transmits the radio frequency signal in the form of electromagnetic waves through the antenna. When data is sent to the communication device, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data. For the sake of description, only one memory, one processor and one transceiver are shown in FIG. 11. In actual communication device products, there can be one or more processors and one or more memories. The memory can also be referred to as a storage medium or a storage device. The memory can be arranged independently of the processor, or can be integrated with the processor. The embodiments of the present application do not limit this.

[0355] In the embodiments of the present application, the antenna and the radio frequency circuit with transceiving functions can be regarded as a transceiving unit of the communication device, and the processor with processing functions can be regarded as a processing unit of the communication device.

[0356] As shown in FIG. 11, the communication device includes a processor 1010, a memory 1020 and a transceiver 1030. The processor 1010 can also be referred to as a processing unit, a processing board, a processing module, a processing device and the like. The transceiver 1030 can also be referred to as a transceiving unit, a transceiver, a transceiving device and the like.

[0357] Optionally, the device for implementing the receiving function in the transceiver 1030 can be regarded as a receiving unit, and the device for implementing the sending function in the transceiver 1030 can be regarded as a sending unit, that is, the transceiver 1030 includes a receiver and a transmitter. The transceiver can also be referred to as a transceiver, a transceiving unit, or a transceiving circuit, etc. The receiver can also be referred to as a receiver, a receiving unit, or a receiving circuit, etc. The transmitter can also be referred to as a transmitter, a transmitting unit, or a transmitting circuit, etc.

[0358] For example, in an implementation manner, the processor 1010 is configured to perform the processing actions in the embodiments shown in FIG. 3, and the transceiver 1030 is configured to perform the transceiving actions in FIG. 3. For example, the transceiver 1030 is configured to perform the transceiving operation of step S302 in the embodiments shown in FIG. 3. The processor 1010 is configured to perform the processing operation of step S301 in the embodiments shown in FIG. 3.

[0359] It should be understood that FIG. 11 is merely an example and not a limitation, and the above communication apparatus including a transceiving unit and a processing unit can not depend on the structure shown in FIG. 11.

[0360] When the communication apparatus 1000 is a chip, the chip includes a processor, a memory, and a transceiver. The transceiver can be an input / output circuit or a communication interface; the processor can be a processing unit or a microprocessor or an integrated circuit integrated on the chip. The sending operation of the communication apparatus in the above method embodiments can be understood as the output of the chip, and the receiving operation of the communication apparatus in the above method embodiments can be understood as the input of the chip.

[0361] The embodiments of the present application also provide a computer readable storage medium having stored thereon computer instructions for implementing the method in the above method embodiments.

[0362] For example, the computer program is executed by a computer, so that the computer can implement the method executed in the above method embodiments.

[0363] The embodiments of the present application also provide a computer program product including instructions, which are executed by a computer to make the computer implement the method executed in the above method embodiments.

[0364] The embodiments of the present application also provide a communication system including the access network device and the terminal device in the above embodiments.

[0365] The embodiments of the present application also provide a chip apparatus including a processor, which is configured to invoke computer degrees or computer instructions stored in a memory, so that the processor executes the method in the embodiments shown in FIG. 3 to FIG. 8.

[0366] In a possible implementation, the input of the chip device corresponds to the receiving operation in the embodiments shown in FIGS. 3 to 8, and the output of the chip device corresponds to the sending operation in the embodiments shown in FIGS. 3 to 8.

[0367] Optionally, the processor is coupled with the memory through an interface.

[0368] Optionally, the chip device further includes a memory, and the memory stores computer degrees or computer instructions.

[0369] The processor mentioned in any of the above can be a general central processing unit, a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling execution of programs of the method of the embodiments shown in FIGS. 3 to 8. The memory mentioned in any of the above can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM), and the like.

[0370] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the explanation and beneficial effects of the related content in any of the above communication devices can refer to the corresponding method embodiments provided above, and will not be repeated here.

[0371] 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, and will not be repeated here.

[0372] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units or components shown or discussed can be indirect coupling or communication connection through some interfaces, devices or units, and can be electrical, mechanical or other forms.

[0373] The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0374] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present alone, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0375] The integrated unit, if realized in the form of a software functional unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on such understanding, the essential part of the technical scheme of the present application or the whole or part of the technical scheme can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or an access network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk or an optical disk, and various media that can store program codes.

Claims

1. A perception method, comprising: The method is applied to a first communication device, and the method comprises: determining signal configuration parameters of a second transmission port according to a speed measurement requirement, parameters of a carrier, a number of first transmission ports, and a first modulation type; wherein the second transmission port is included in the first transmission ports, and the first modulation type is at least one of signal modulation types supported by the first transmission ports; sending the signal configuration parameters; wherein the signal configuration parameters are used for the second transmission port to send a sensing signal.

2. The method of claim 1, wherein, The first modulation type meets a signal-to-noise ratio requirement.

3. The method according to claim 1 or 2, characterized in that, The determination of the signal configuration parameters of the second transmission port according to the speed measurement requirement, the parameters of the carrier, the number of the first transmission ports, and the first modulation type comprises: determining a first time domain period according to the speed measurement requirement, the parameters of the carrier, and the number of the first transmission ports; determining the signal configuration parameters of the second transmission port according to the first modulation type, the first time domain period, and the number of the first transmission ports.

4. The method according to any one of claims 1 to 3, characterized in that, The signal configuration parameters comprise an index of the second transmission port and a first mapping relationship, and the first mapping relationship comprises a mapping relationship between the index of the second transmission port and configuration information of the sensing signal.

5. The method of claim 4, wherein, The method further comprises: sending an index of a receiving port and the first mapping relationship, and the first mapping relationship is used for the receiving port to process an echo signal of the sensing signal.

6. The method according to claim 4 or 5, characterized in that, The configuration information of the sensing signal comprises indication information of the first modulation type, retrieval information, and relationship information; wherein, the indication information of the first modulation type is used for determining the first modulation type; the retrieval information is used for retrieving basic information of the sensing signal under the first modulation type, and the basic information comprises quantity indication information of the sensing signal, and at least one of a subcarrier spacing of frequency division multiple access, a time interval of time division multiple access, a signal coding strategy of code division multiple access, or a phase offset of Doppler multiple access; the relationship information is used for indicating a corresponding relationship between different sensing signals of the second transmission port, or / and an order relationship between different sensing signals corresponding to a same second transmission port.

7. The method of claim 6, wherein, The indication information of the first modulation type is represented by first bit and / or second bit in a plurality of bits, and the first bit and the second bit are respectively associated with different first modulation types.

8. The method of claim 2, wherein, The first modulation type meets a signal-to-noise ratio requirement, which comprises that a first signal-to-noise ratio corresponding to the first modulation type is greater than the signal-to-noise ratio requirement; wherein the first signal-to-noise ratio is determined based on a transmission power of the first transmission port, a noise energy of the first transmission port, and a first time domain period, and the first time domain period is determined based on the speed measurement requirement, the parameters of the carrier, and the number of the first transmission ports.

9. The method according to any one of claims 1 to 8, characterized in that, A speed measurement range of the first modulation type contains the speed measurement requirement.

10. The method of claim 9, wherein, The first modulation type is time division multiple access, Doppler multiple access, or binary code division multiple access, and the velocity measurement range is: V max ≤ λ / 4N t T c , V min ≥ -λ / 4N t T c ; The first modulation type is based on Doppler multiple access with null bands, the velocity range and resolution cell size The speed measurement requirement comprises a maximum speed and a minimum speed that need to be sensed; or scene indication information, which is used for indicating a speed range that need to be sensed. wherein V max represents an upper limit of a measurement speed range, V min represents a lower limit of a measurement speed range, N t represents a number of the second transmission ports, T c represents a time domain period of each signal pulse, and λ represents a wavelength of the carrier.

11. The method of claim 10, wherein, V max ≤ λ / 4T c V min ≥ -λ / 4T c V ≤ λ / 4(N max +N t )T empty V c ≥ -λ / 4(N min +N empty )T N is the number of empty bands.

12. The method according to any one of claims 1 to 11, characterized in that, The method comprises:

13. A perception method comprising: ​ receiving signal configuration parameters of a second transmission port from a first communication device; wherein the signal configuration parameters are determined based on a speed measurement requirement, parameters of a carrier, a number of first transmission ports, and a first modulation type, the second transmission port is included in the first transmission ports, and the first modulation type is at least one of signal modulation types supported by the first transmission ports; transmitting a sensing signal through the second transmission port according to the signal configuration parameters of the second transmission port.

14. The method of claim 13, wherein, The first modulation type meets a signal-to-noise ratio requirement.

15. The method according to claim 13 or 14, characterized in that, The signal configuration parameters include an index of the second transmission port and a first mapping relationship, and the first mapping relationship includes a mapping relationship between the index of the second transmission port and configuration information of the sensing signal.

16. The method according to claim 13 or 14, characterized in that The configuration information of the sensing signal includes indication information of the first modulation type, retrieval information, and relationship information; wherein The indication information of the first modulation type is used to determine the first modulation type. The retrieval information is used to retrieve basic information of the sensing signal under the first modulation type, and the basic information includes quantity indication information of the sensing signal, and at least one of subcarrier spacing of frequency division multiple access, time interval of time division multiple access, signal coding strategy of code division multiple access, or phase offset of Doppler multiple access. The relationship information is used to indicate a corresponding relationship between different sensing signals of the second transmission port, or / and an order relationship between different sensing signals corresponding to the same second transmission port.

17. The method of claim 16, wherein, The transmitting the sensing signal through the second transmission port according to the signal configuration parameters of the second transmission port includes: determining, according to the index of the second transmission port, configuration information of the sensing signal of the second transmission port from the first mapping relationship; transmitting the sensing signal through the second transmission port according to the first modulation type, the retrieval information, and the relationship information.

18. The method of claim 16 or 17, wherein, The indication information of the first modulation type is represented by first bit and / or second bit in a plurality of bits, and the first bit and the second bit are respectively associated with different first modulation types.

19. A communications device, characterized by It includes: a transceiver module and a processing module, the transceiver module is used to perform the transmitting step or the receiving step in the method of any one of claims 1-18; the processing module is used to perform steps other than the transmitting step and the receiving step in the method of any one of claims 1-18.

20. A communications device, characterized by It includes at least one processor coupled with a memory; the memory is used to store programs or instructions; the at least one processor is used to execute the programs or instructions to enable the device to implement the method of any one of claims 1-18.

21. A chip device, characterized by The processor is used to call the program stored in the memory to enable the processor to execute the method of any one of claims 1-18.

22. The chip device of claim 21, wherein, The chip device further includes the memory.

23. A computer-readable storage medium, characterized in that, The computer readable storage medium stores program instructions, and when the program instructions are executed, the method of any one of claims 1-18 is executed.

24. A computer program product comprising program instructions, characterized in that, The program instructions, when run on a computer, cause the computer to perform the method of any one of claims 1 to 18.

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