Communication sensing method, signal receiving method, device and equipment

Abstract

The invention discloses a communication sensing method, a signal receiving method, devices and equipment, and belongs to the technical field of communication, and the communication sensing method comprises the steps that first equipment sends a target signal through x antenna ports, the target signal sent through the x antenna ports is used for sensing, and x is an integer greater than or equal to 1; the first device sends the target signal through y antenna ports, the target signal sent through the y antenna ports is used for communication, and y is an integer greater than or equal to 1.

Description

Technical Field

[0001] This application belongs to the field of communication technologies, and particularly relates to a communication perception method, a signal reception method, a device, and equipment. Background Art

[0002] Some communication systems support sensing measurements. In some related technologies, the signals used for sensing and the signals used for communication are configured independently of each other, that is, different types of signals are used for sensing measurements and communication. In this way, during the sensing measurement and communication processes, the device needs to process multiple signals, resulting in a relatively high complexity of sensing measurement and communication. Summary of the Invention

[0003] Embodiments of this application provide a communication perception method, a signal reception method, a device, and equipment, which can solve the problem of relatively high complexity of sensing measurement and communication caused by the need for the device to process multiple signals during the sensing measurement and communication processes.

[0004] In a first aspect, a communication perception method is provided, including:

[0005] A first device sends a target signal through x antenna ports, and the target signal sent through the x antenna ports is used for sensing, where x is an integer greater than or equal to 1;

[0006] The first device sends the target signal through y antenna ports, and the target signal sent through the y antenna ports is used for communication, where y is an integer greater than or equal to 1.

[0007] In a second aspect, a signal reception method is provided, including:

[0008] A second device performs a reception operation, and the reception operation includes:

[0009] Receiving the target signal sent by the first device through y antenna ports; or,

[0010] Receiving the target signal sent by the first device through y antenna ports, and the first device receiving the target signal sent through x antenna ports;

[0011] wherein, the target signal sent through the y antenna ports is used for communication, and y is an integer greater than or equal to 1;

[0012] The target signal sent through the x antenna ports is used for sensing, and x is an integer greater than or equal to 1.

[0013] In a third aspect, a communication perception device is provided, including:

[0014] A first transmission module, configured to transmit a target signal through x antenna ports, where the target signal transmitted through the x antenna ports is used for sensing, and x is an integer greater than or equal to 1;

[0015] A second transmission module, configured to transmit the target signal through y antenna ports, where the target signal transmitted through the y antenna ports is used for communication, and y is an integer greater than or equal to 1.

[0016] In a fourth aspect, a signal receiving device is provided, including:

[0017] An execution module, configured to perform a receiving operation, where the receiving operation includes:

[0018] Receiving a target signal transmitted by a first device through y antenna ports; or,

[0019] Receiving the target signal transmitted by the first device through y antenna ports, and the first device receiving the target signal transmitted through x antenna ports;

[0020] where the target signal transmitted through the y antenna ports is used for communication, and y is an integer greater than or equal to 1;

[0021] the target signal transmitted through the x antenna ports is used for sensing, and x is an integer greater than or equal to 1.

[0022] In a fifth aspect, a device is provided, which includes a processor and a memory, where the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the communication and sensing method provided in the embodiments of the present application are implemented.

[0023] In a sixth aspect, a device is provided, including a processor and a communication interface. Wherein, the communication interface is configured to transmit a target signal through x antenna ports, where the target signal transmitted through the x antenna ports is used for sensing, and x is an integer greater than or equal to 1; and transmit the target signal through y antenna ports, where the target signal transmitted through the y antenna ports is used for communication, and y is an integer greater than or equal to 1.

[0024] In a seventh aspect, a device is provided, which includes a processor and a memory, where the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the signal receiving method provided in the embodiments of the present application are implemented.

[0025] In an eighth aspect, a device is provided, including a processor and a communication interface. The communication interface is configured to perform a receiving operation, and the receiving operation includes: receiving a target signal sent by a first device through y antenna ports; or receiving the target signal sent by the first device through y antenna ports, and the first device receiving the target signal sent through x antenna ports. The target signal sent through the y antenna ports is used for communication, where y is an integer greater than or equal to 1. The target signal sent through the x antenna ports is used for sensing, where x is an integer greater than or equal to 1.

[0026] In a ninth aspect, a readable storage medium is provided. A program or instructions are stored on the readable storage medium, and when the program or instructions are executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0027] In a tenth aspect, a wireless communication system is provided, including: a first device and a second device. The first device can be used to execute the steps of the communication and sensing method provided in the embodiments of the present application, and the second device can be used to execute the steps of the signal receiving method provided in the embodiments of the present application.

[0028] In an eleventh aspect, a chip is provided. The chip includes a processor and a communication interface. The communication interface is coupled to the processor, and the processor is configured to run a program or instructions to implement the communication and sensing method provided in the embodiments of the present application, or to implement the signal receiving method provided in the embodiments of the present application.

[0029] In a twelfth aspect, a computer program / program product is provided. The computer program / program product is stored in a storage medium, and when the computer program / program product is executed by at least one processor, the steps of the communication and sensing method provided in the embodiments of the present application are implemented, and when the computer program / program product is executed by at least one processor, the steps of the signal receiving method provided in the embodiments of the present application are implemented.

[0030] In the embodiments of the present application, the first device sends a target signal through x antenna ports. The target signal sent through the x antenna ports is used for sensing, where x is an integer greater than or equal to 1. The first device sends the target signal through y antenna ports. The target signal sent through the y antenna ports is used for communication, where y is an integer greater than or equal to 1. In this way, by sending the target signal through multiple antenna ports, the target signal sent through the x antenna ports is used for sensing, and the target signal sent through the y antenna ports is used for communication, so that only one type of signal needs to be sent during the sensing measurement and communication process, that is, the sensing measurement and communication use the same type of signal, thereby reducing the complexity of the sensing measurement and communication. Brief Description of the Drawings

[0031] Figure 1 is a block diagram of a wireless communication system to which embodiments of the present application can be applied;

[0032] Figure 2 is a schematic diagram of a scenario for sensing measurement provided by embodiments of the present application;

[0033] Figure 3 is a schematic diagram of a bistatic radar architecture provided by embodiments of the present application;

[0034] Figure 4 is a schematic diagram of another bistatic radar architecture provided by embodiments of the present application;

[0035] Figure 5 is a flowchart of a communication sensing method provided by embodiments of the present application;

[0036] Figures 6 to 11 is a schematic diagram of resource mapping provided by embodiments of the present application;

[0037] Figure 12 is a flowchart of a signal receiving method provided by embodiments of the present application;

[0038] Figure 13 is a schematic diagram of a sensing measurement provided by embodiments of the present application;

[0039] Figure 14 is a schematic diagram of another sensing measurement provided by embodiments of the present application;

[0040] Figure 15 is a schematic diagram of an area division provided by embodiments of the present application;

[0041] Figure 16 is a schematic diagram of another area division provided by embodiments of the present application;

[0042] Figure 17 is a schematic diagram of a signal waveform provided by embodiments of the present application;

[0043] Figure 18 is a structural diagram of a communication sensing device provided by embodiments of the present application;

[0044] Figure 19 is a structural diagram of a signal receiving device provided by embodiments of the present application;

[0045] Figure 20 is a structural diagram of a communication device provided by embodiments of the present application;

[0046] Figure 21 is a structural diagram of another communication device provided by embodiments of the present application;

[0047] Figure 22 It is a structural diagram of another communication device provided by an embodiment of the present application. Detailed implementation manners

[0048] Next, the technical solutions in the embodiments of the present application will be clearly described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0049] The terms "first", "second", etc. in the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are usually of the same category, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "or" in the present application means at least one of the connected objects. For example, "A or B" covers three scenarios, namely, Scenario 1: including A and not including B; Scenario 2: including B and not including A; Scenario 3: including both A and B. The character " / " generally indicates an "or" relationship between the associated objects before and after.

[0050] The term "indication" in the present application can be either a direct indication (or an explicit indication) or an indirect indication (or an implicit indication). Among them, a direct indication can be understood as that the sender clearly tells the receiver specific information, operations to be performed, or request results, etc. in the sent indication; an indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or makes a judgment and determines the operations to be performed or request results, etc. according to the judgment result.

[0051] It should be noted that the technology described in the embodiments of this application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, and can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), or other systems. The terms "system" and "network" in the embodiments of this application are often used interchangeably, and the described technology can be used not only in the systems and radio technologies mentioned above, but also in other systems and radio technologies. The following description describes the New Radio (NR) system for example purposes, and uses the NR term in most of the following descriptions, but these technologies can also be applied to systems other than the NR system, such as the 6th Generation (6G) communication system. th Generation, 6G) communication system.

[0052] Figure 1The block diagram of a wireless communication system to which the embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network-side device 12. Among them, the terminal 11 can be a mobile phone, a tablet personal computer, a laptop computer, a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device, a flight vehicle, a vehicle user equipment (VUE), a shipborne device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), a game console, a personal computer (PC), a teller machine or a self-service machine, etc. Wearable devices include: smart watches, smart bracelets, smart earphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart ankle chains, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle user equipment can also be referred to as a vehicle terminal, a vehicle controller, a vehicle module, a vehicle component, a vehicle chip or a vehicle unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application.

[0053] The network - side device 12 may include an access network device or a core network device. Among them, the access network device may also be referred to as a radio access network (RAN) device, a radio access network function, or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AP), or a wireless fidelity (WiFi) node, etc. Among them, the base station may be referred to as Node B (NB), evolved Node B (eNB), next - generation Node B (gNB), new radio Node B (NR Node B), access point, relay base station (RBS), serving base station (SBS), base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), home Node B (HNB), home evolved Node B, transmission reception point (TRP), or some other suitable term in the art. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of this application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0054] The core network device may include, but is not limited to, at least one of the following: core network node, core network function, Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (L-NEF), Binding Support Function (BSF), Application Function (AF), Location Management Function (LMF), Gateway Mobile Location Centre (GMLC), Network Data Analytics Function (NWDAF), etc. It should be noted that in the embodiments of this application, only the core network devices in the NR system are taken as examples for introduction, and the specific types of core network devices are not limited.

[0055] In some embodiments, in addition to communication capabilities, the network-side device and the terminal may have sensing capabilities. The sensing capabilities refer to one or more devices with sensing capabilities that can sense information such as the orientation, distance, and speed of a target object through the transmission and reception of wireless signals, or detect, track, identify, image, etc. a target object, event, or environment. Some sensing functions and application scenarios are shown in Table 1:

[0056] Table 1

[0057]

[0058]

[0059] It should be noted that the sensing categories shown in Table 1 above are only for illustrative purposes, and the embodiments of the present application do not limit the categories of sensing measurements.

[0060] In addition, the embodiments of the present application can be applied to the scenario of communication and sensing integration. Among them, communication and sensing integration means that in the same system, through spectrum sharing and hardware sharing, the integrated design of communication and sensing functions is realized. While the system is transmitting information, it can sense information such as orientation, distance, and speed, detect, track, and identify a target device or event. The communication system and the sensing system complement each other, achieving an improvement in overall performance and bringing a better service experience.

[0061] For example: The integration of communication and radar belongs to a typical application of communication and sensing integration (communication and sensing fusion), and the integration of communication and radar systems can bring many advantages, such as cost savings, size reduction, power consumption reduction, spectrum efficiency improvement, mutual interference reduction, etc., thereby improving the overall performance of the system.

[0062] In the embodiments of the present application, according to the different sensing signal sending nodes and receiving nodes, it may include but is not limited to Figure 2 the 6 sensing links shown. It should be noted that Figure 2 each sensing link in is illustrated with a sending node and a receiving node. In an actual system, different sensing links can be selected according to different sensing requirements. Each sensing link may have one or more sending nodes and receiving nodes, and the actual sensing system may include multiple different sensing links. And Figure 2 the sensing targets in use people and vehicles as examples, and it is assumed that neither people nor vehicles carry or install signal transceiver devices. The sensing targets in the actual scenario will be more diverse.

[0063] Sensing Link 1: The base station sends and receives the sensing signal by itself. In this mode, the base station sends a sensing signal and obtains the sensing result by receiving the echo of the sensing signal;

[0064] Sensing link 2: Air interface sensing between base stations. In this mode, base station 2 receives the sensing signal sent by base station 1 and obtains the sensing result.

[0065] Sensing link 3: Uplink air interface sensing. In this mode, the base station receives the sensing signal sent by the terminal and obtains the sensing result.

[0066] Sensing link 4: Downlink air interface sensing. In this mode, the terminal receives the sensing signal sent by the base station and obtains the sensing result.

[0067] Sensing link 5: Self-transmitting and self-receiving sensing by the terminal. In this mode, the terminal sends a sensing signal and obtains the sensing result by receiving the echo of the sensing signal.

[0068] Sensing link 6: Sidelink sensing between terminals. For example, terminal 2 receives the sensing signal sent by terminal 1 and obtains the sensing result, or terminal 1 receives the sensing signal sent by terminal 2 and obtains the sensing result.

[0069] In some embodiments, taking NR as an example, the main functions of some signals can be as shown in Table 2:

[0070] Table 2:

[0071]

[0072]

[0073] Among them, for the Demodulation Reference Signal (DMRS), due to the randomness of service arrival and the uncertainty of scheduled time-frequency resources, the distribution of the demodulation reference signal in the time-frequency domain may be non-uniform and non-continuous.

[0074] The Channel State Information Reference Signal (CSI-RS), Tracking Reference Signal (TRS), or Sounding Reference Signal (SRS) can be sent periodically or aperiodically, and the time-frequency resources occupied can be flexibly allocated by the system according to the usage.

[0075] The above synchronization signal can be a Primary Synchronization Signal (PSS) or a Secondary Synchronization Signal (SSS). The synchronization signal can be an always-on signal that is continuously transmitted. Additionally, the period of the synchronization signal can be configured as 5 ms, 10 ms, 20 ms, 40 ms, 80 ms, or 160 ms. With a relatively large time domain interval, the speed measurement range is relatively small.

[0076] The Phase-tracking reference signal (PT-RS) has a sparse frequency domain distribution and a dense time domain distribution, making it suitable for speed measurement and Doppler-related sensing applications.

[0077] The Positioning Reference Signal (PRS) adopts a comb structure in the frequency domain and is mapped in a staggered manner in the time domain. It can adapt to different sensing resolution requirements through different time-frequency domain pattern configurations and can be used for high-precision sensing.

[0078] The time-frequency resources occupied by data signals are generally more than those of reference signals and can be used as a supplement to the channel information obtained through reference signals.

[0079] In some embodiments, in a radar system, radars can be classified into monostatic radars and bi / multi-static radars according to whether the transmitter and receiver are separated. For bi-static radars, it is generally required that the transmitting and receiving antennas are far apart, comparable to the radar operating range. Among them, the external radiation source radar is a special case of bi-static radars. It utilizes relevant electromagnetic wave detection theories and signal processing technologies to obtain non-cooperative electromagnetic signals transmitted by a third party (such as a communication base station) to achieve the detection, positioning, tracking, and identification of targets. It is also called a passive radar, bi / multi-static passive radar, passive radar, non-cooperative illumination source radar, or non-cooperative passive detection system.

[0080] The perception result calculation of bi-static radars can be based on the reference channel (direct path) signal and the monitoring channel (reflected path) signal. A schematic diagram of a typical bi-static radar architecture is as Figure 3 and Figure 4 shown. Figure 3 and Figure 4 correspond to two-dimensional space and three-dimensional space respectively. R T is the distance from the signal transmitting end (Tx) to the target, R R is the distance from the signal receiving end (Rx) to the target, L is the baseline distance, θ T is the angle of the target relative to the signal transmitting end, θ R (θ R1 、θR2 ) is the angle of the target relative to the signal receiving end, and β is the bistatic angle.

[0081] In some embodiments, for common distance, Doppler, or velocity measurements in sensing measurements, measurement ambiguity problems occur when the signal resource configuration does not meet the requirements. For example, for monostatic radar sensing, the relationship between the maximum unambiguous distance, Doppler, or velocity and the signal resource configuration is at least one of the following:

[0082] If considering the velocity direction, the time-domain resource interval satisfies ΔT ≤ 1 / (2|f dmax |) or ΔT ≤ c / (4f c |v max |); if not considering the velocity direction, the time-domain resource interval satisfies ΔT ≤ 1 / f dmax or ΔT ≤ c / (2f v v max ), where f dmax is the maximum unambiguous Doppler, v max is the maximum unambiguous velocity, f c is the carrier frequency, and c is the speed of light;

[0083] The frequency-domain resource interval satisfies Δf ≤ 1 / τ max or Δf ≤ c / (2R max ), where τ max is the maximum unambiguous time delay, and R max is the maximum unambiguous distance.

[0084] Next, in conjunction with the accompanying drawings, a communication sensing method, a signal receiving method, a device, and an apparatus provided by the embodiments of the present application will be described in detail through some embodiments and their application scenarios.

[0085] Please refer to Figure 5 , Figure 5 which is a flowchart of a communication sensing method provided by the embodiments of the present application. As Figure 5 shown, it includes the following steps:

[0086] Step 501: The first device sends a target signal through x antenna ports. The target signal sent through the x antenna ports is used for sensing, and x is an integer greater than or equal to 1.

[0087] The above-mentioned first device can be a terminal or a network-side device.

[0088] The above-mentioned target signal can be a reference signal, such as CSI-RS, SRS, DMRS, PRS, etc., or a newly designed signal, such as a signal generated based on a pseudo-random (PN) sequence, a Zadoff-Chu (ZC) sequence, etc., or a signal generated based on a chirp or a frequency modulated continuous wave (FMCW) signal.

[0089] The target signal transmitted through the x antenna ports can be used for the first device to perform sensing measurements or for the second device to perform sensing measurements.

[0090] Step 502: The first device transmits the target signal through y antenna ports. The target signal transmitted through the y antenna ports is used for communication, where y is an integer greater than or equal to 1.

[0091] The fact that the target signal transmitted through the y antenna ports is used for communication means that the target signal transmitted through the y antenna ports communicates with the second device.

[0092] It should be noted that in the embodiments of the present application, the execution order of step 501 and step 502 is not limited. It can be as Figure 5 shown, first execute step 501, then execute step 502, or step 501 and step 502 can be executed simultaneously, or it may be to first execute step 502 and then execute step 501.

[0093] The target signals transmitted through the above-mentioned x antenna ports and y antenna ports are of the same type of signal, such as the same type of reference signal, the same type of dedicated sensing signal, the same type of data signal.

[0094] In the embodiments of the present application, since the target signal is transmitted through multiple antenna ports, the target signal transmitted through the x antenna ports is used for sensing, and the target signal transmitted through the y antenna ports is used for communication, thereby realizing the transmission of information to the second device during the process of transmitting the signal for sensing measurement, so as to improve the communication performance of the device.

[0095] In addition, since only the target signal needs to be transmitted during the sensing measurement and communication processes, only the above-mentioned target signal needs to be configured, thereby reducing the signal configuration overhead.

[0096] As an optional implementation manner, there are common antenna ports among the x antenna ports and the y antenna ports. The target signal transmitted through the common antenna ports is used for sensing and communication.

[0097] The fact that there is a common antenna port among the above-mentioned x antenna ports and the above-mentioned y antenna ports means that there is the same antenna port within the x antenna ports and the y antenna ports, and this antenna port is the above-mentioned common antenna port. For example: there is antenna port A in both the x antenna ports and the y antenna ports, and the target signal sent by antenna port A is used for sensing and communication, that is, there can be the same antenna port among the x antenna ports and the y antenna ports, that is, the antenna port that is used for both sensing and communication.

[0098] In the above-mentioned optional implementation manner, since the target signal sent by the common antenna port is used for sensing and communication, in this way, it can be realized that the target signal sent by the same antenna port is used for sensing and communication, thereby reducing the overhead of signal transmission.

[0099] As an optional implementation manner, the value of the above-mentioned x is associated with at least one of the following:

[0100] The number of sensing targets, the number of sensing beams.

[0101] The above-mentioned value of x being associated with at least one of the above can be understood as that the number of antenna ports of the above-mentioned x antenna ports is determined based on at least one of the above-mentioned number of sensing targets or the number of sensing beams. For example: determining the value of the above-mentioned x based on the mapping relationship between the number of sensing targets and the number of antenna ports used for sensing, or determining the value of the above-mentioned x based on the mapping relationship between the number of sensing beams and the number of antenna ports used for sensing, or determining the value of the above-mentioned x based on the mapping relationship among the number of sensing targets, the number of sensing beams, and the number of antenna ports used for sensing.

[0102] In the above-mentioned optional implementation manner, since the value of x is associated with the number of sensing targets or the number of sensing beams, in this way, it can be ensured that the number of antenna ports used for sensing matches the number of sensing targets or the number of sensing beams, so as to improve the sensing performance.

[0103] As an optional implementation manner, the value of the above-mentioned y is associated with at least one of the following:

[0104] Channel rank (Rank) number, the number of devices supporting simultaneous communication, the number of transmission layers (layer), system throughput.

[0105] The above-mentioned value of y being associated with at least one of the above can be understood as that the number of antenna ports of the above-mentioned y antenna ports is determined based on at least one of the above-mentioned channel rank number, the number of devices supporting simultaneous communication, the number of transmission layers, or system throughput. For example: determining the value of the above-mentioned y based on the mapping relationship between at least one of these and the number of antenna ports used for communication.

[0106] In the above-mentioned optional implementation, since the value of y is associated with at least one of the channel rank, the number of devices supporting simultaneous communication, the number of transmission layers, or the system throughput, the number of antenna ports for communication can be made to match at least one of the channel rank, the number of devices supporting simultaneous communication, the number of transmission layers, or the system throughput, so as to improve communication performance.

[0107] In some implementations, the values of x and y above can be agreed upon by the protocol or configured by the network side.

[0108] As an optional implementation, when x is greater than 1, the x antenna ports use the same transmission beam; or,

[0109] When x is greater than 1, the x antenna ports use the same spatial domain filter or spatial domain filtering coefficient.

[0110] In this implementation, since the x antenna ports use the same transmission beam, spatial domain filter, or spatial domain filtering coefficient, the channels experienced by the signals transmitted by the x antenna ports can be made the same or similar, enabling the first device or the second device to jointly process the signals of the x antenna ports to obtain a sensing measurement result, so as to improve the sensing measurement performance. For example, the first device or the second device performs channel estimation based on the received signal to obtain channel information, and then further obtains delay or Doppler information through two-dimensional Fourier transform.

[0111] As an optional implementation, when x is greater than 1, the x antenna ports belong to different Code Division Multiplexing (CDM) antenna port groups; or,

[0112] At least two of the x antenna ports belong to the same CDM antenna port group.

[0113] In the embodiments of the present application, the CDM antenna port group can also be referred to as the CDM port group or the CDM group.

[0114] The above-mentioned x antenna ports belonging to different CDM antenna port groups means that the x antenna ports belong to different CDM antenna port groups respectively. In this case, the signal resources of the above-mentioned x antenna ports are time division multiplexing (TDM) or frequency division multiplexing (FDM), rather than CDM. In this way, the signals of the above-mentioned x antenna ports can occupy different time domain or frequency domain resources, and when jointly processing at the receiving end to obtain a sensing measurement result, the sensing measurement performance can be effectively improved.

[0115] At least two of the above x antenna ports belonging to the same CDM antenna port group may mean that the above x antenna ports belong to the same CDM antenna port group, or some of the above x antenna ports belong to the same CDM antenna port group, so as to implement signal CDM for sensing and improve resource utilization. For example, different antenna ports among the above x antenna ports that are not used for receiver joint measurement may belong to the same CDM antenna port group, and these antenna ports may send target signals using different transmission beams.

[0116] As an alternative implementation, the target signal transmitted through at least two antenna ports in the first CDM antenna port group has at least one of the following characteristics:

[0117] Generated based on different sequences;

[0118] Not mapped using an Orthogonal Cover Code (OCC);

[0119] Wherein, the first CDM antenna port group includes the antenna ports among the above x antenna ports.

[0120] The above first CDM antenna port group can be understood as a CDM antenna port group including antenna ports for sensing, that is, a CDM antenna port group including the antenna ports among the above x antenna ports is the above first CDM antenna port group.

[0121] The above generation based on different sequences means that the target signal transmitted by each antenna port in the first CDM antenna port group is generated based on different sequences, so as to achieve the generation of the target signal not based on the same sequence.

[0122] The target signal transmitted through at least two antenna ports in the first CDM antenna port group may be generated based on different sequences and does not adopt OCC mapping. Or, the target signal transmitted through at least two antenna ports in the first CDM antenna port group may be generated based on different sequences. Or, the target signal transmitted through at least two antenna ports in the first CDM antenna port group does not adopt OCC mapping. For example, when a CDM antenna port group includes antenna ports for sensing, the target signals transmitted by each antenna port in the CDM antenna port group are not generated based on the same reference signal sequence, and these target signals are not subjected to OCC mapping. As a result, there will be a phase difference between these target signals on adjacent resources, enabling the receiving end of the sensing measurement to utilize the phase difference information of these signals for sensing measurement to improve sensing performance. Additionally, the different sequences may have good cross-correlation characteristics, making the target signals transmitted by different antenna ports highly correlated with each other to reduce the complexity of signal parsing at the receiving end of the target signal.

[0123] In an optional implementation manner described above, since the target signal transmitted through at least two antenna ports in the first CDM antenna port group does not adopt OCC mapping, the phase difference of the target signal on adjacent resource elements (REs) can be obtained, and the receiving end can perform sensing measurement based on this phase difference to improve sensing performance.

[0124] In some implementation manners, the signal resources corresponding to the first CDM antenna port group may occupy continuous time-frequency domain resources.

[0125] As an optional implementation manner, the second CDM antenna port group including the antenna port among the x antenna ports only includes one antenna port.

[0126] The second CDM antenna port group refers to only including one antenna port among the x antenna ports, and no other antenna ports are included in this CDM antenna port group. In this way, since only one antenna port for sensing is included, the time-frequency domain resources in this CDM antenna port group can be allocated to this antenna port. Based on the measurement of the target signal transmitted by this antenna port, the receiving end can obtain channel information on more time-frequency resources and improve sensing performance.

[0127] As an optional implementation manner, there are antenna ports of the third CDM antenna port group among the x antenna ports, and there are antenna ports of the third CDM antenna port group among the y antenna ports.

[0128] The above-mentioned third CDM antenna port group includes antenna ports among the x antenna ports and also includes antenna ports among the y antenna ports, that is, the antenna ports for sensing and the antenna ports for communication can belong to the same CDM antenna port group, and the signal resources corresponding to these antenna ports adopt CDM and are mapped to the same time-domain or frequency-domain resources to improve resource utilization.

[0129] As an optional implementation manner, the method further includes:

[0130] The first device sends first information to the second device, where the first information includes at least one of the following:

[0131] Configuration information of the target signal, measurement configuration information, auxiliary information;

[0132] Wherein, the auxiliary information is used to assist at least one of sensing measurement and communication.

[0133] The above-mentioned configuration information of the target signal can be configuration information such as the resources, format, or sequence of the target signal. Through the above-mentioned configuration information of the target signal, the second device can receive the target signal more reliably, so as to improve the reliability of target signal transmission.

[0134] Optionally, the configuration information of the target signal includes at least one of the following:

[0135] Antenna port information, signal resource identifier, signal usage, waveform, subcarrier spacing, guard interval, frequency-domain start position, frequency-domain resource length, frequency-domain resource interval, time-domain start position, time-domain resource length, time-domain resource interval, signal power, sequence information, signal direction, Quasi Co-Location (QCL), cyclic prefix information.

[0136] Wherein, the above-mentioned antenna port information can be relevant information of the above-mentioned x antenna ports or the above-mentioned y antenna ports.

[0137] In some implementation manners, the above-mentioned antenna port information includes at least one of the following:

[0138] Antenna port number information, antenna port index information, CDM antenna port group number information, CDM antenna port group index information, indication information for disabling OCC.

[0139] Wherein, the antenna port number information can be information such as the above-mentioned x antenna ports or the above-mentioned y antenna ports. For example, the above-mentioned antenna port number information includes at least one of the following:

[0140] The total number of antenna ports corresponding to the target signal, the number of antenna ports for sensing, the number of antenna ports for communication, the number of common antenna ports.

[0141] Among them, the general antenna port is an antenna port used for both sensing and communication.

[0142] The total number of antenna ports corresponding to the above target signal may be the total number of antenna ports N, the number of antenna ports for sensing is x, the number of antenna ports for communication is y, and the general antenna port is an antenna port used for both sensing and communication, such as the number of general antenna ports z.

[0143] Through the above information on the number of antenna ports, the receiving end can more effectively identify the signals for sensing or communication.

[0144] The above antenna port index information may include at least one of the following:

[0145] The index information of all antenna ports corresponding to the target signal, the index information of the antenna ports for sensing, the index information of the antenna ports for communication, and the index information of the general antenna port.

[0146] The above index information may be an index list, such as including the index list of all antenna ports, the index list of the antenna ports for sensing, the index list of the antenna ports for communication, and the index list of the general antenna port.

[0147] Through the above antenna port index information, the receiving end can more effectively identify the signals for sensing or communication.

[0148] The above information on the number of CDM antenna port groups may include at least one of the following:

[0149] The total number of CDM antenna port groups corresponding to the target signal, the number of CDM antenna port groups for sensing, the number of CDM antenna port groups for communication, and the number of general CDM antenna port groups. The general CDM antenna port group includes antenna ports for sensing and antenna ports for communication, or the general CDM antenna port group includes general antenna ports.

[0150] The above CDM antenna port group index information may include at least one of the following:

[0151] The index information of all CDM antenna port groups corresponding to the target signal, the index information of the CDM antenna port groups for sensing, the index information of the CDM antenna port groups for communication, and the index information of the general CDM antenna port groups. The general CDM antenna port group includes antenna ports for sensing and antenna ports for communication, or the general CDM antenna port group includes general antenna ports.

[0152] Based on the above CDM antenna port group number information or CDM antenna port group index information, the receiving end can more effectively identify the CDM antenna port group where the antenna port for sensing or communication is located.

[0153] The above indication information for disabling OCC is used to indicate that the target signal does not use OCC mapping. For example, the above indication information for disabling OCC is used for at least one of the following:

[0154] Indicate that OCC mapping is not used within the same CDM antenna port group;

[0155] Implicitly indicate that the CDM antenna port group for sensing only includes one antenna port.

[0156] This can indicate that different antenna ports in the same CDM antenna port group use different sequences to generate the transmitted signal, or each CDM antenna port group only contains a single antenna port, or the specified CDM antenna port group (the CDM antenna port group for sensing) only contains a single antenna port.

[0157] In some embodiments, the above indication information for disabling OCC can be configured globally, indicating that all CDM antenna port groups do not use OCC mapping, or can be configured for each CDM antenna port group separately. For example, only the CDM antenna port group for sensing does not use OCC mapping, or it can also be that the CDM antenna port group that defaults to including the sensing antenna port does not use OCC mapping, or only supports a single antenna port and does not require explicit indication.

[0158] By the above indication information for disabling OCC, it can be achieved that the CDM antenna port group does not use OCC mapping. In this way, the phase difference of the target signal between adjacent REs can be obtained, and the receiving end can perform sensing measurements based on this phase difference to improve sensing performance.

[0159] The above signal resource identifier is used to distinguish different signal resource configurations;

[0160] The above signal usage indicates that the target signal is a signal for communication (such as channel measurement, channel estimation, synchronization, carrying data information, etc.), a signal for sensing, or a signal for both communication and sensing. Specifically, it can also be a signal for which sensing service, or a signal for which type of sensing service.

[0161] The above waveforms can be OFDM, single-carrier frequency-division multiple access (SC-FDMA), orthogonal time frequency space (OTFS), frequency modulated continuous wave (FMCW), or pulse signals, etc.;

[0162] The above subcarrier spacing can be the subcarrier spacing of an OFDM system, for example: 30 KHz.

[0163] The above guard interval can be the time interval between the end of the signal transmission time and the time when the latest echo signal of the signal is received. This parameter is proportional to the maximum sensing distance; for example, it can be calculated by c / (2Rmax), where Rrnax is the maximum sensing distance (belonging to the sensing requirement information). For a self-sending and self-receiving sensing signal, Rmax represents the maximum distance from the sensing signal transceiver point to the signal reflection point; in some cases, the cyclic prefix (CP) of the OFDM signal can act as the minimum guard interval, and c is the speed of light.

[0164] The above frequency domain start position can be the start frequency point, or it can be the start resource element (RE), resource block (RB) index.

[0165] The above frequency domain resource length can be the frequency domain bandwidth, and this frequency domain bandwidth is inversely proportional to the range resolution. The frequency domain bandwidth B of each signal is c / (2AR), where c is the speed of light and AR is the range resolution.

[0166] The above frequency domain resource interval represents the interval between adjacent signal frequency domain resource units, which can be expressed by the number of REs or RBs, or can be expressed by a density value (Densitv). For example, Densitv = 1 means that there is one RE in each RB for carrying the signal. The frequency domain resource interval is inversely proportional to the maximum unambiguous range / delay. Among them, for an OFDM system, when the subcarriers are continuously mapped, the frequency domain interval is equal to the subcarrier spacing;

[0167] The above time domain start position can be the start time point, or it can be the start symbol, time slot, frame index.

[0168] The above time domain resource length can be the burst duration, and the time domain resource length is inversely proportional to the Doppler resolution.

[0169] The above time-domain resource interval may be the time interval between two adjacent signal resource units, and the time-domain resource interval is associated with the maximum unambiguous Doppler shift or the maximum unambiguous speed.

[0170] The above time-domain resource characteristics may be periodic transmission, semi-persistent transmission, or aperiodic transmission.

[0171] The above signal power may be an interval power value. For example, a value is taken every 2 dBm from -20 dBm to 23 dBm.

[0172] The above sequence information may include sequence type information (such as ZC sequence, PN sequence, etc.), sequence generation method, or sequence length, etc.

[0173] The above signal direction may be the angle information or beam information of signal transmission.

[0174] The above QCL relationship may indicate that the above signal includes multiple resources, and each resource is QCL with a synchronization signal block (SSB), and QCL includes type A, type B, type C, or type D.

[0175] The above cyclic prefix (CP) information may include CP type or CP length, etc. Among them, the CP type may include normal cyclic prefix (NCP), extended cyclic prefix (ECP), or a newly designed CP dedicated to sensing measurement, etc.

[0176] The target signal can be flexibly configured through the above configuration information of the target signal, making the target signal more likely to meet the sensing requirements.

[0177] It should be noted that in the embodiments of the present application, one or more items included in the above configuration information of the target signal may also be agreed upon by the protocol or pre-configured, and this is not limited.

[0178] The above measurement configuration information is used to indicate the relevant configuration information of sensing measurement or communication measurement, so that the second device can better perform sensing measurement or communication measurement. For example: the above measurement configuration information includes at least one of the following:

[0179] Signal resource indication of measurement, number of signal resources of measurement, antenna port indication of measurement, CDM antenna port group indication of measurement, measurement result reporting configuration.

[0180] Among them, the above-mentioned measured signal resource indication may indicate the signal resources measured by the second device. For example, the above-mentioned measured signal resource indication includes the identifier of the above-mentioned measured signal. The second device determines the signal configuration information of the measured signal through this identifier, and further determines the measured signal resources.

[0181] The above-mentioned measured antenna port indication may include the number of antenna ports or the antenna port index of the signal for sensing measurement. For example, by indicating multiple antenna port indexes, sensing measurement based on the signals of x antenna ports is performed. At this time, it can be considered that the channels experienced by the signals of the above-mentioned x antenna ports are the same or similar, and joint measurement can be performed to obtain the sensing measurement result, that is, the measurement of a certain or certain sensing measurement quantities is based on the signals of the multiple antenna ports.

[0182] The above-mentioned measured CDM antenna port group indication may include at least one of the number of CDM antenna port groups or the CDM antenna port group index of the signal for sensing measurement. For example, by indicating multiple CDM antenna port group indexes, sensing measurement based on the signals of multiple CDM antenna port groups is performed. At this time, it can be considered that the channels experienced by the signals of the multiple CDM antenna port groups are the same or similar, and joint measurement can be performed to obtain the sensing measurement result, that is, the measurement of a certain or certain sensing measurement quantities is based on the signals of the multiple CDM antenna port groups.

[0183] Among them, the above-mentioned sensing measurement quantities can be classified into the following types:

[0184] The first-level measurement quantities (also known as received signals / raw channel information) include at least one of the following:

[0185] Received signal / channel response complex results, amplitude / phase, I-channel / Q-channel and their related operation results (operations include addition, subtraction, multiplication, division, matrix addition, subtraction, multiplication, matrix transpose, triangular relationship operations, square root operations, and power operations, etc., as well as the threshold detection results and maximum / minimum value extraction results of the above operation results; among them, the operations also include Fast Fourier Transform (FFT) / Inverse Fast Fourier Transform (IFFT), Discrete Fourier Transform (DFT) / Inverse Discrete Fourier Transform (IDFT), 2D-FFT, 3D-FFT, matched filtering, autocorrelation operation, wavelet transform, and digital filtering, etc., as well as the threshold detection results and maximum / minimum value extraction results of the above operation results;

[0186] The second-level measurement quantities (also known as basic measurement quantities) include at least one of the following: time delay, Doppler, angle, intensity, and their multi-dimensional combined representations;

[0187] The third-level measurement quantities (also known as basic attributes / statuses) include at least one of the following: distance, speed, orientation, spatial position, acceleration;

[0188] The fourth-level measurement quantities (also known as advanced attributes / statuses) include at least one of the following: presence of a target, trajectory, action, expression, vital signs, quantity, imaging result, weather, air quality, shape, material, composition.

[0189] The above measurement result reporting configuration is used to indicate the criteria for the second device to report measurement results. For example, it includes at least one of the time-frequency domain resource configuration for reporting, reporting period, or triggering event for reporting. Among them, the triggering event may include at least one of the following:

[0190] An event of entering a specific area (such as a cell);

[0191] An event of reaching a specific time;

[0192] An event that a certain type of measurement signal reaches a certain threshold;

[0193] An event that the device moves more than some predefined (straight-line) distance from its previous position;

[0194] An event that the device's orientation changes by more than some predefined angle;

[0195] An event that the device's moving speed exceeds some predefined speed threshold;

[0196] An event that the environmental information change (such as temperature / humidity / light intensity) measured by the device's sensor exceeds a certain range.

[0197] In some embodiments, the above measurement configuration information includes one or more items that can be protocol-agreed or pre-configured to save the overhead of the first information.

[0198] In some embodiments, the above auxiliary information includes at least one of the following:

[0199] Number of data transmission layers, number of data transmission streams, channel rank, transmit beam indication, receive beam indication, number of sensed targets, location information of sensed targets, direction information of sensed targets relative to the second device, location information of the first device, direction information of the first device relative to the second device.

[0200] Among them, the above data transmission layer number or data transmission stream number is less than or equal to the total number of antenna ports corresponding to the above target signal. The number of the above x antenna ports or y antenna ports can be implicitly indicated by the data transmission layer number or data transmission stream number to assist the second device in receiving the target signal.

[0201] The above channel rank number corresponds to the number of antenna ports used for communication to assist the second device in receiving the target signal.

[0202] The above transmit beam indication or receive beam indication can assist the second device in better receiving the target signal.

[0203] The number of the above sensed targets can assist the second device in better performing sensing measurements.

[0204] The position information of the above sensed target, the direction information relative to the candidate target node, the position information of the first device, or the direction information of the first device relative to the second device can assist the second device in adjusting the beam or spatial domain filtering coefficient during signal reception to improve the sensing measurement performance.

[0205] Optionally, the above auxiliary information is also used to implicitly indicate the relevant information of at least one of the above x antenna ports and the above y antenna ports.

[0206] The above relevant information can be relevant information such as the number of antenna ports, antenna port index, or CDM antenna port group.

[0207] The above auxiliary information implicitly indicating the relevant information of at least one of the above x antenna ports and the above y antenna ports can be that the protocol defines the mapping relationship between the auxiliary information and the relevant information, and the information indicated by the auxiliary information is determined based on this mapping relationship, or the protocol defines the indication rule of the above auxiliary information indicating the relevant information. For example: when the data transmission layer number y < the total number of antenna ports N, the second device believes that at this time, y of the N antenna ports are used for communication, and N - y are used for sensing.

[0208] Since the above information is used to implicitly indicate the relevant information of at least one of the x antenna ports and the y antenna ports, the overhead of the first information can be saved.

[0209] In some embodiments, one or more of the above auxiliary information can be protocol-agreed or pre-configured to save the overhead of the first information.

[0210] It should be noted that in the embodiments of the present application, the disabling of OCC mapping is not limited. In some embodiments, OCC mapping can also be used. At least one of TDM, FDM, or CDM can be used between the target signals sent by different antenna ports.

[0211] The following uses an embodiment to illustrate the multiplexing and mapping between antenna ports in the embodiments of the present application:

[0212] In this embodiment, the signal time-domain or frequency-domain resource allocation scheme for multiplexing multiple antenna ports is described. Taking the 5G system DMRS as an example, as Figure 6 Configure the time-domain or frequency-domain resource format for DMRS type 1. For DMRS type 1, the following methods are included:

[0213] Single-symbol DMRS. The subcarriers within one OFDM symbol are divided into two groups of frequency-division comb-like resources, where each group of comb-like resources constitutes a CDM antenna port group. Within the CDM antenna port group, 2 antenna ports can be multiplexed through 2 OCCs (OCC mapping is performed between every two adjacent REs), and up to 4 antenna ports are supported.

[0214] Dual-symbol DMRS. Based on the single-symbol DMRS, time-domain OCC is added. Each group of comb-like resources occupies two consecutive OFDM symbols. Each CDM antenna port group can achieve 4 orthogonal antenna ports through 4 time-frequency-domain OCCs, and up to 8 antenna ports are supported.

[0215] Taking the use of DMRS for communication and sensing, taking DMRS type 1 and single-symbol as an example, assuming that the number of communication data transmission layers is 2 and two DMRS antenna ports for communication are required; then antenna port 0 and antenna port 1 can be used as communication antenna ports, and antenna port 2 or antenna port 3 can be used as sensing antenna ports. Among them, antenna port 0 and antenna port 1 belong to CDM antenna port group 0, and antenna port 2 and antenna port 3 belong to CDM antenna port group 1. Specifically, it can be divided into the following situations:

[0216] Situation 1: Antenna port 0 and antenna port 1 are used as communication antenna ports, and antenna port 2 and antenna port 3 are used as sensing antenna ports, and OCC mapping is adopted: The signals corresponding to antenna port 2 and antenna port 3 are generated according to the existing protocol generation method, that is, after the signals of the two antenna ports are generated based on the same DMRS sequence, they are mapped to the same frequency-domain resources in the frequency-domain OCC manner, as Figure 7As shown. For example, the OCC sequence used for antenna port 2 is [+1 +1], and the one used for antenna port 3 is [+1 -1]. At this time, the signal sequence corresponding to antenna port 2 is {r(0), r(1), r(2), r(3),...}, and the signal sequence corresponding to antenna port 3 is {r(0), -r(1), r(2), -r(3),...}; in this solution, the signals of antenna port 2 and antenna port 3 satisfy the orthogonal relationship, and different beams can be used for transmission. The receiving end measures antenna port 2 and antenna port 3 respectively to obtain their respective sensing measurement results without performing joint measurement. Correspondingly, the antenna port information indicated in the above first information can be the communication antenna port index {0, 1}, the sensing antenna port index {2, 3}; or it can be the communication CDM antenna port group index {0}, the sensing CDM antenna port group index {1}.

[0217] In particular, for bistatic sensing, if there is a line of sight (LOS) path and the signal beam corresponding to antenna port 0 or antenna port 1 points to the LOS direction, that is, the received signal corresponding to antenna port 0 or antenna port 1 contains the LOS path, then antenna port 0 or antenna port 1 can be used simultaneously as the sensing antenna port (the corresponding signal is used as the reference channel signal in bistatic sensing). At this time, the antenna port information indicated in the first information can be the communication antenna port index {0}, the sensing antenna port index {2, 3}, and the common antenna port index {1} (assuming that the signal of antenna port 1 is used as the sensing signal at the same time).

[0218] Case 2: Antenna port 0 and antenna port 1 are used as communication antenna ports, and antenna port 2 and antenna port 3 are used as sensing antenna ports. OCC mapping is not used between the sensing antenna ports: After the signals corresponding to antenna port 2 and antenna port 3 are generated based on different sequences (the specific sequence generation method is shown in Embodiment 4), they are mapped to the same frequency-domain resource, as Figure 7 shown. In this method, the signals of antenna port 2 and antenna port 3 can be transmitted using different beams. The receiving end measures antenna port 2 and antenna port 3 respectively to obtain their respective sensing measurement results without performing joint measurement; the advantage of this method compared with Case 1 is that OCC mapping and de-OCC are not required, and the phase information between adjacent resource elements (REs) can be used to calculate the sensing measurement results (delay or distance), that is, it is equivalent to increasing the frequency-domain sampling density and can support a larger unambiguous ranging range. Correspondingly, the first information can include an indication information for disabling OCC at this time.

[0219] Case 3: Antenna port 0 and antenna port 1 are used as communication antenna ports, and antenna port 2 is used as the sensing antenna port: In this method, CDM antenna port group 1 only includes one antenna port 2 for sensing. At this time, the signal corresponding to antenna port 2 is directly mapped to Figure 7In terms of frequency domain resources, compared with case 1, the number of supported antenna ports is reduced, but OCC mapping and de-OCC are not required. The phase information between adjacent REs can be used to calculate the perception measurement results (delay or distance), which is equivalent to increasing the frequency domain sampling density. Compared with case 2, there is no problem of interference between signals of different antenna ports due to unsatisfactory sequence cross-correlation characteristics. Accordingly, the first information may include indication information for disabling OCC.

[0220] Case 4: Antenna port 0 and antenna port 2 are used as communication antenna ports, antenna port 1 and antenna port 3 are used as sensing antenna ports, and OCC mapping is adopted: the signal generation corresponding to antenna ports 0, 1, 2, and 3 is based on the generation method defined in the protocol, and the antenna port signals in each CDM antenna port group are mapped to the same frequency domain resources using frequency domain OCC, such as Figure 6 (Left) shown.

[0221] The difference from case 1 is that in this method, the two sensing antenna ports belong to different CDM antenna port groups and occupy different REs in the frequency domain, so the frequency domain sampling density of the sensing signal is higher. The antenna port information indicated in the first information can be the communication antenna port index {0,2} and the sensing antenna port index {1,3}; optionally, the communication antenna port can also be a general antenna port and used for sensing at the same time.

[0222] Case 5: Antenna port 0 and antenna port 2 are used as communication antenna ports, antenna port 1 and antenna port 3 are used as sensing antenna ports, and OCC mapping is not used: the signals corresponding to antenna ports 0, 1, 2, and 3 are generated based on different sequences, and the signals corresponding to the antenna ports in each CDM antenna port group are mapped to the same frequency domain resources, such as Figure 6 (Left) shown.

[0223] Compared with situation 4, this method does not require OCC mapping and de-OCC, which is equivalent to further improving the sampling rate of frequency domain resources of the perception signal. Accordingly, the first information needs to include indication information of disabling OCC (the indication can be an indication that all CDM antenna port groups do not use OCC mapping). Optionally, the communication antenna port can also be a general antenna port, which is also used for perception.

[0224] Assume that the number of communication data transmission layers is 1. An example is given for the above situation. Under this assumption, one communication DMRS antenna port is required. Then, antenna port 0 can be used as the communication antenna port, and antenna port 1 or antenna port 2 or antenna port 3 can be used as the sensing antenna port. When only the signal of a single antenna port is needed for sensing, antenna port 1 can be used as the sensing antenna port. At this time, the first information can indicate that antenna port 0 is the communication antenna port (optionally, it can also be a common antenna port used for sensing at the same time), and antenna port 1 is the sensing antenna port, or indicate that CDM antenna port group 0 is a common CDM antenna port group, which includes the communication antenna port, i.e., antenna port 0 (optionally, it can also be a common antenna port used for sensing at the same time), and the sensing antenna port, i.e., antenna port 1. At this time, the total number of antenna ports is 2. The CDM antenna port group without data transmission is only CDM antenna port group 0. The frequency domain resources corresponding to antenna ports 2 and 3 in CDM antenna port group 1 can be used for transmitting data signals or other purposes. The signals corresponding to antenna port 0 and antenna port 1 can be mapped using OCC or not, and the specific method is similar to the content described above.

[0225] When only the signal of a single antenna port is needed for sensing, antenna port 2 (or antenna port 3) can also be used as the sensing antenna port. At this time, the first information can indicate that antenna port 0 is the communication antenna port (optionally, it can also be a common antenna port used for sensing at the same time), and antenna port 2 is the sensing antenna port, or indicate that CDM antenna port group 0 is the communication CDM antenna port group, which includes the communication antenna port, i.e., antenna port 0, and CDM antenna port group 1 is the sensing CDM antenna port group, which includes the sensing antenna port, i.e., antenna port 1. At this time, the total number of antenna ports is 2. The CDM antenna port groups without data transmission are CDM antenna port group 0 and CDM antenna port group 1.

[0226] When the signals of at least two antenna ports are needed for sensing, the signals corresponding to the two sensing antenna ports can be not used for joint measurement (for example, different beams are used for transmission respectively, for measurements on different sensing targets, or for measurements of different sensing measurement quantities, associated with different measurement configurations). At this time, the two sensing antenna ports can belong to the same CDM antenna port group or different CDM antenna port groups. The signals corresponding to the two sensing antenna ports can also be used for joint measurement (for the same sensing target or the same sensing measurement quantity, associated with the same measurement configuration). At this time, the two sensing antenna ports belong to different CDM antenna port groups and occupy different frequency domain resources. The specific selection of antenna ports, signal generation, resource mapping method, and the indication method of the first information are similar to the content described above.

[0227] To further increase the maximum number of supported antenna ports, dual-symbol configuration can also be adopted, such as Figure 6 (right) shows. At this time, the number of CDM antenna port groups supported is still 2, but the maximum number of antenna ports is 8. The selection of specific antenna ports, signal generation, resource mapping method, and the first information indication method are similar to those described above and will not be elaborated here. Similarly, by disabling the OCC-related configuration, the frequency-domain sampling density of the sensing signal can be increased, and at the same time, the minimum time-domain sampling interval can be reduced. That is, the phase information between two adjacent symbols in the time domain can be used to improve the Doppler measurement performance.

[0228] In addition to configuration type 1, DMRS currently also supports configuration type 2, which further increases the maximum number of supported antenna ports. At this time, the number of CDM antenna port groups supported is 3, and single-symbol configuration and dual-symbol configuration are also supported, such as Figure 8 shown, including the following methods:

[0229] Single-symbol DMRS: The subcarriers within one OFDM symbol are divided into 3 CDM antenna port groups, and each CDM antenna port group consists of two adjacent subcarriers. 2 antenna ports within the CDM antenna port group are multiplexed through 2 OCCs, and FDM is used between groups, supporting up to 6 antenna ports.

[0230] Dual-symbol DMRS: Based on the single-symbol configuration, time-domain OCC is added. Each CDM antenna port group occupies two consecutive OFDM symbols. 4 orthogonal antenna ports are achieved through 4 time-frequency-domain OCCs for each CDM antenna port group, supporting up to 12 antenna ports.

[0231] The selection of specific antenna ports, signal generation, resource mapping method, and the first information indication method are similar to those of DMRS configuration type 1 described above.

[0232] Alternatively, taking the 5G system CSI-RS as an example, its resource configuration is more flexible, and multiple CSI-RS resources can be jointly used for sensing. The number of antenna ports of the CSI-RS resource can be a single port or multiple antenna ports (multi-port), up to 32 ports. CDM is used in multi-port mapping, that is, multiple CSI-RS ports can be distinguished and mapped in the same time-frequency resource through CDM. Currently, there are 4 types of CDM in NR, namely noCDM, fd-CDM2, cdm4-FD2-TD2, and cdm8-FD2-TD4. Among them, noCDM is the simplest, where the CSI-RS is only mapped on one RE, without the concept of code division; fd-CDM2 realizes the multiplexing of 2 ports on 2 REs in 2 subcarriers in the frequency domain and 1 OFDM symbol in the time domain; cdm4-FD2-TD2 realizes the multiplexing of 4 ports on 4 REs in 2 subcarriers in the frequency domain and 2 OFDM symbols in the time domain; cdm8-FD2-TD4 realizes the multiplexing of 8 ports on 8 REs in 2 subcarriers in the frequency domain and 4 OFDM symbols in the time domain. Figure 9 Several schematic diagrams of CDM are given.

[0233] Taking the case where the CSI-RS row (Row) = 3 in the table of CSI-RS positions within the time slot defined by the NR protocol (specifically shown in Table 3) as an example, it can support the transmission of 2-antenna-port CSI-RS based on frequency-domain CDM (frequency-domain OCC modulation), using frequency-domain CDM2. The maximum density is 1, that is, 2 REs in each resource block (RB) carry the CSI-RS signals of each antenna port.

[0234] Table 3:

[0235]

[0236] Among them, the above Ports represents the number of antenna ports, the above Density represents the density value, and the above cdm-Type represents the CDM type. respectively represent the starting frequency-domain position and starting time-domain position of the CDM antenna port group. The CDM group index represents the CDM port group index, and k′ and l′ respectively represent the frequency-domain position offset and time-domain position offset of the RE within the CDM antenna port group relative to the.

[0237] For example, it may be indicated that antenna port 0 is the antenna port (communication antenna port) for CSI measurement, and antenna port 1 is the sensing antenna port. To utilize the phase information between adjacent REs, indication information for disabling OCC may be included in the first information, and signals corresponding to antenna port 0 and antenna port 1 are generated using different sequences. Alternatively, if the CSI-RS is specifically configured for sensing, only one antenna port 0 may be included in the corresponding CDM antenna port group as the sensing antenna port, and there is no need for resource multiplexing with other antenna ports through OCC.

[0238] Further, to increase the frequency-domain resource density of the sensing signal, multiple CSI-RS resources with Row = 3 can be configured. The multiple CSI-RS resources occupy different frequency-domain positions in the same OFDM symbol (which can be achieved by configuring the corresponding starting RE), for example Figure 10 as shown. And it is indicated in the signal configuration information that the signal usage of the multiple signal resources is for sensing, or the multiple CSI-RS resources are associated in the measurement configuration for sensing. At this time, when the receiving end processes, the multiple CSI-RS signal resources can be jointly measured to obtain the sensing measurement result. As described above, OCC mapping may be used within the CDM antenna port groups corresponding to different CSI-RS resources, and then the sensing measurement result is obtained based on the joint measurement of the signals of each CSI-RS resource; or it may be indicated that OCC mapping is not used within the CDM antenna port groups of the multiple CSI-RS resources. For example, only one antenna port 0 may be included in the CDM antenna port group as the sensing antenna port, and there is no need for resource multiplexing with other antenna ports through OCC.

[0239] Alternatively, a CSI-RS resource with Row = 9 can be directly configured. At this time, up to 12 antenna ports and 6 CDM antenna port groups are supported, as Figure 11 shown. It may be indicated that multiple antenna ports or multiple CDM antenna port groups are for sensing. At this time, when the receiving end processes, the multiple CSI-RS signal resources can be jointly measured to obtain the sensing measurement result. As described above, OCC mapping may be used within each CDM antenna port group, and then the sensing measurement result is obtained based on the joint measurement of the signals of each CSI-RS resource; or it may be indicated through the first information that OCC mapping is not used, and signals corresponding to multiple antenna ports may be generated using different sequences; or it may be indicated that only one antenna port is included in the multiple CDM antenna port groups as the sensing antenna port, and the receiving end obtains the sensing result based on the joint measurement of the signals corresponding to the multiple antenna ports in the multiple CDM antenna port groups.

[0240] When multiple communication antenna ports and multiple sensing antenna ports need to be configured simultaneously, the selection of specific antenna ports, signal generation, resource mapping method, and the first information indication method are similar to the content described above and will not be elaborated here.

[0241] As an optional implementation, the target signals sent through at least two antenna ports within the first CDM antenna port group are signals generated using different sequences;

[0242] Among them, the first CDM antenna port group includes the antenna ports among the x antenna ports.

[0243] The above-mentioned first CDM antenna port group is a CDM antenna port group including antenna ports for sensing, and can be one or more CDM antenna port groups.

[0244] The above different sequences can be different types of sequences, such as PN sequences, ZC (Zadoff-Chu) sequences, or the above different sequences can be different in terms of the initial value, primitive polynomial, cyclic shift value, or truncation position of the sequence, etc., and no limitation is made in this regard.

[0245] In this implementation, it can be realized that the target signals for sensing are generated based on different sequences, which can enable more channel information to exist between the target signals sent by the same CDM antenna port group. Based on the measurement of these target signals at the receiving end, more channel information on time-frequency resources can be obtained, improving the sensing performance.

[0246] Optionally, the target signals sent through at least two antenna ports within the first CDM antenna port group include at least one of the following:

[0247] Signals generated based on a pseudo-random (PN) sequence;

[0248] Generate pseudo-random based on a ZC sequence;

[0249] Signals generated based on a chirp signal.

[0250] The above-mentioned target signals sent through at least two antenna ports within the first CDM antenna port group including at least one of the above can be understood as follows: the target signals sent by different antenna ports within the first CDM antenna port group can be target signals generated based on different initial values, primitive polynomials, cyclic shift values, or truncation positions of the same sequence, or can be target signals generated based on different sequences or signals, or the target signals sent by some antenna ports are generated based on the same sequence or signal, and the target signals sent by some antennas are generated based on different sequences or signals.

[0251] Optionally, at least one of the initial value, primitive polynomial, cyclic shift value, or truncation position of the PN sequence is associated with the second information; or

[0252] At least one of the root sequence number or cyclic shift value of the ZC sequence is associated with the second information; or

[0253] At least one of the frequency modulation slope or starting frequency of the Chirp signal is associated with the second information;

[0254] Wherein, the second information includes at least one of the following:

[0255] Perception area identifier, indication information on whether it is used for perception, perception service identifier, perception service type identifier, perception target identifier, label identifier associated with the perception target, number of perception targets, perception measurement quantity identifier, device identifier participating in the perception measurement, time-domain resource information, frequency-domain resource information, antenna port index, CDM antenna port group index, number of antenna ports, number of CDM antenna port groups, antenna index, maximum number of antennas, codeword index.

[0256] Wherein, at least one of the initial value, primitive polynomial, cyclic shift value, or truncation position of the above PN sequence being associated with the second information may mean determining at least one of the initial value, primitive polynomial, cyclic shift value, or truncation position of the PN sequence according to the second information.

[0257] At least one of the root sequence number or cyclic shift value of the above ZC sequence being associated with the second information may be determining at least one of the root sequence number or cyclic shift value of the ZC sequence according to the second information.

[0258] At least one of the frequency modulation slope or starting frequency of the above Chirp signal being associated with the second information may be determining at least one of the frequency modulation slope or starting frequency of the Chirp signal according to the second information.

[0259] In this embodiment, it is possible to determine the generation sequence or signal of the target signal based on at least one of the above second information, so as to associate the transmitted target signal with at least one of the above second information, improve the correlation characteristics of the target signal, and make the transmission of the target signal more reliable.

[0260] As an optional embodiment, the method further includes:

[0261] The first device performs perception measurement on the target signal to obtain a perception measurement result.

[0262] The above-mentioned first device's perception measurement of the target signal can be the perception measurement of the echo signal of the target signal, specifically self-transmitting and self-receiving perception measurement. The above-mentioned first device's perception measurement of the target signal can also be referred to as perception measurement based on the target signal.

[0263] In this embodiment, it is possible to enable the first device to send the target signal through N antenna ports, and at the same time receive the signal echoes of x antenna ports for perception, and the second device receives the signals of y antenna ports for communication, so as to improve the communication performance of the device.

[0264] The above-mentioned first device's perception measurement of the target signal can achieve monostatic perception, that is, the receiving end only receives and processes the signals of the communication antenna ports, and does not receive and process the signals of the perception antenna ports.

[0265] In some embodiments, it can also be bistatic perception, where the receiving end simultaneously receives and processes the target signals sent by the antenna ports for communication and the target signals sent by the antenna ports for perception. Optionally, the target signal sent by the antenna port for communication can also be used as the perception reference channel signal, that is, the corresponding antenna port serves as both a communication antenna port and a perception antenna port.

[0266] In the embodiments of the present application, the first device and the second device can be network-side devices or terminals. The first device can obtain the perception requirements from the third device. After the first device or the second device obtains the perception measurement result, it can be sent to the third device. The third device can be the core network perception network function or the perception network element.

[0267] Among them, the signaling transmission between the base station and the terminal, and between different terminals can be through Radio Resource Control (RRC) signaling or Medium Access Control Control Element (MAC CE) or layer 1 signaling or other newly defined perception signaling; the signaling transmission between the perception network function and the terminal can be through Non-Access-Stratum (NAS) signaling (forwarded by the AMF) or through RRC signaling or MAC CE or layer 1 signaling or other newly defined perception signaling; the interaction between the perception network function and the base station can be forwarded to the radio access network by using the AMF through the N2 interface; or the core network perception network function sends to the UPF, and the UPF sends to the radio access network through the N3 interface; or sends to the radio access network (base station) through a newly defined interface; the signaling transmission between base stations can be through the Xn interface.

[0268] In the embodiments of the present application, the sensing network function can also be called a sensing network element or a sensing management function (Sensing Management Function, Sensing MF). It can be located on the RAN side or the core network side and refers to a network node in the core network or RAN that is responsible for at least one of the functions such as sensing request processing, sensing resource scheduling, sensing information interaction, and sensing data processing. It can be an upgrade of the AMF or LMF in the mobile communication network, or other network nodes or newly defined network nodes. Specifically, the functional characteristics of the sensing network function / sensing network element can include at least one of the following:

[0269] Perform target information interaction with a wireless signal transmitting device or a wireless signal measuring device (including the target terminal or the serving base station of the target terminal or the base station associated with the target area), where the target information includes a sensing processing request, sensing capabilities, sensing auxiliary data, sensing measurement type, sensing resource configuration information, etc., to obtain the value of the target sensing result or sensing measurement (uplink measurement or downlink measurement) sent by the wireless signal measuring device; where the wireless signal can also be called a sensing signal.

[0270] Determine the sensing method to be used based on factors such as the type of sensing service, sensing service consumer information, required sensing quality of service (Quality of Service, QoS) requirement information, sensing capabilities of the wireless signal transmitting device, and sensing capabilities of the wireless signal measuring device. The sensing method can include: wireless access network device A sends and wireless access network device B receives, or wireless access network device sends and terminal receives, or wireless access network device A sends and receives by itself, or terminal sends and wireless access network device receives, or terminal sends and receives by itself, or terminal A sends and terminal B receives, etc.

[0271] Determine the sensing device for the sensing service based on factors such as the type of sensing service, information of the sensing service consumer, required sensing QoS requirement information, sensing capabilities of the wireless signal transmitting device, and sensing capabilities of the wireless signal measuring device, where the sensing device includes a wireless signal transmitting device or a wireless signal measuring device.

[0272] Manage the overall coordination and scheduling of the resources required for the sensing service, such as performing corresponding configuration of the sensing resources of the wireless access network device or the terminal;

[0273] Perform data processing on the value of the sensing measurement, or perform calculations to obtain the sensing result. Further, verify the sensing result, estimate the sensing accuracy, etc.

[0274] In the embodiments of the present application, the sensing requirement information includes at least one of the following:

[0275] Perception services or perception service types. The perception services can be, for example, detecting the presence of a target, positioning, speed detection, distance detection, angle detection, acceleration detection, material analysis, component analysis, shape detection, classification, RCS detection, polarization scattering characteristic detection, fall detection, intrusion detection, quantity statistics, indoor positioning, gesture recognition, lip reading recognition, gait recognition, expression recognition, face recognition, breathing monitoring, heart rate monitoring, pulse monitoring, humidity / brightness / temperature / atmospheric pressure monitoring, air quality monitoring, weather condition monitoring, environment reconstruction, terrain and landform, building / vegetation distribution detection, pedestrian or vehicle flow detection, crowd density / vehicle density detection, etc. The perception service types can classify multiple different perception services according to certain characteristics. For example, they can be classified by function into detection-type perception services (such as intrusion detection, fall detection), parameter estimation-type perception services (distance, angle, speed calculation), recognition-type perception services (action recognition, identity recognition), etc. They can also be classified according to the perception range (close-range perception, medium-range perception, long-range perception), according to the perception fineness (coarse-grained perception, fine-grained perception, etc.), according to power consumption / energy consumption, according to resource occupancy, etc.

[0276] Perception target area: It refers to the area where the perception object may exist, or the area where imaging or environment reconstruction needs to be performed.

[0277] Perception object type: Classify the perception object according to its possible motion characteristics. Each perception object type contains information such as the motion speed, motion acceleration, and typical RCS of the typical perception object.

[0278] Perception service quality (Quality of Service, QoS): The performance indicators for perceiving the perception target area or perception object, including at least one of the following:

[0279] Perception resolution, which can be divided into: ranging resolution, angle measurement resolution, speed measurement resolution, imaging resolution, etc.

[0280] Perception accuracy, which can be divided into: ranging accuracy, angle measurement accuracy, speed measurement accuracy, positioning accuracy, etc.

[0281] Perception range, which can be divided into: ranging range, speed measurement range, angle measurement range, imaging range, etc.

[0282] Perception latency, such as the time interval from the sending of the perception signal to the obtaining of the perception result, or the time interval from the initiation of the perception requirement to the obtaining of the perception result.

[0283] Perception update rate, such as the time interval between two adjacent executions of perception and the obtaining of the perception result.

[0284] Detection probability, such as the probability of being correctly detected when the perceived object exists);

[0285] False alarm probability, such as the probability of erroneously detecting a perceived target when the perceived object does not exist);

[0286] The maximum number of perceivable targets.

[0287] In the embodiment of the present application, the first device sends a target signal through x antenna ports, and the target signal sent through the x antenna ports is used for sensing, where x is an integer greater than or equal to 1; the first device sends the target signal through y antenna ports, and the target signal sent through the y antenna ports is used for communication, where y is an integer greater than or equal to 1. In this way, by sending the target signal through multiple antenna ports, the target signal sent through the x antenna ports is used for sensing, and the target signal sent through the y antenna ports is used for communication, so as to transmit information to the second device during the process of sending the signal for sensing measurement, thereby improving the communication performance of the device.

[0288] Please refer to Figure 12 , Figure 12 which is a flowchart of a signal receiving method provided by the embodiment of the present application. As Figure 12 shown, it includes the following steps:

[0289] Step 1201. The second device performs a receiving operation, and the receiving operation includes:

[0290] Receiving the target signal sent by the first device through y antenna ports; or,

[0291] Receiving the target signal sent by the first device through y antenna ports, and the first device receiving the target signal sent through x antenna ports;

[0292] wherein, the target signal sent through the y antenna ports is used for communication, and y is an integer greater than or equal to 1;

[0293] The target signal sent through the x antenna ports is used for sensing, and x is an integer greater than or equal to 1.

[0294] Optionally, there are common antenna ports among the x antenna ports and the y antenna ports, and the target signal sent by the common antenna ports is used for both sensing and communication.

[0295] Optionally, the value of x is associated with at least one of the following:

[0296] The number of perceivable targets, the number of sensing beams.

[0297] Optionally, the value of y is associated with at least one of the following:

[0298] Channel rank, number of devices supporting simultaneous communication, number of transmission layers, system throughput.

[0299] Optionally, when x > 1, the same receive beam is used for the x antenna ports; or,

[0300] When x > 1, the same spatial domain filter or spatial domain filter coefficient is used for the x antenna ports.

[0301] Optionally, the target signal transmitted through at least two antenna ports in the first CDM antenna port group has at least one of the following characteristics:

[0302] Generated based on different sequences;

[0303] Does not use orthogonal cover code (OCC) mapping;

[0304] Wherein, the first CDM antenna port group includes the antenna ports among the x antenna ports.

[0305] Optionally, the second CDM antenna port group including the antenna ports among the x antenna ports contains only one antenna port.

[0306] Optionally, there are antenna ports in the third CDM antenna port group among the x antenna ports, and there are antenna ports in the third CDM antenna port group among the y antenna ports.

[0307] Optionally, the method further includes:

[0308] The second device receives the first information sent by the first device, where the first information includes at least one of the following:

[0309] Configuration information of the target signal, measurement configuration information, auxiliary information;

[0310] Wherein, the auxiliary information is used to assist at least one of sensing measurement and communication.

[0311] Optionally, the configuration information of the target signal includes at least one of the following:

[0312] Antenna port information, signal resource identifier, waveform, subcarrier spacing, guard interval, starting frequency domain position, frequency domain resource length, frequency domain resource interval, starting time domain position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction, quasi - co - location (QCL) relationship, cyclic prefix information.

[0313] Optionally, the antenna port information includes at least one of the following:

[0314] Antenna port number information, antenna port index information, number of CDM antenna port groups information, CDM antenna port group index information, indication information for disabling orthogonal cover code OCC.

[0315] Optionally, the antenna port number information includes at least one of the following:

[0316] The total number of antenna ports corresponding to the target signal, the number of antenna ports for sensing, the number of antenna ports for communication, the general antenna port number; or,

[0317] The antenna port index information includes at least one of the following:

[0318] The index information of all antenna ports corresponding to the target signal, the index information of antenna ports for sensing, the index information of antenna ports for communication, the index information of general antenna ports; or,

[0319] The number of CDM antenna port groups information includes at least one of the following:

[0320] The total number of CDM antenna port groups corresponding to the target signal, the number of CDM antenna port groups for sensing, the number of CDM antenna port groups for communication, the number of general CDM antenna port groups, where the general CDM antenna port group includes antenna ports for sensing and antenna ports for communication, or includes general antenna ports; or,

[0321] The CDM antenna port group index information includes at least one of the following:

[0322] The index information of all CDM antenna port groups corresponding to the target signal, the index information of CDM antenna port groups for sensing, the index information of CDM antenna port groups for communication, the index information of general CDM antenna port groups, where the general CDM antenna port group includes antenna ports for sensing and antenna ports for communication, or includes general antenna ports;

[0323] Wherein, the general antenna port is an antenna port used for both sensing and communication.

[0324] Optionally, the indication information for disabling OCC is used to indicate at least one of the following:

[0325] Do not use OCC mapping within the same CDM antenna port group;

[0326] The CDM antenna port group for sensing only includes one antenna port.

[0327] Optionally, the measurement configuration information includes at least one of the following:

[0328] Measured signal resource indication, number of measured signal resources, measured antenna port indication, measured CDM antenna port group indication, sensed measurement quantity, measurement result reporting configuration.

[0329] Optionally, the auxiliary information includes at least one of the following:

[0330] Number of data transmission layers, number of data transmission streams, channel rank number, transmit beam indication, receive beam indication, number of sensed targets, location information of sensed targets, direction information of sensed targets relative to the second device, location information of the first device, direction information of the first device relative to the second device.

[0331] Optionally, the auxiliary information is further used to implicitly indicate relevant information of at least one of the x antenna ports and the y antenna ports.

[0332] Optionally, the target signal transmitted through at least two antenna ports within the first CDM antenna port group includes at least one of the following:

[0333] Signal generated based on a pseudo-random PN sequence;

[0334] Generate pseudo-random based on a ZC sequence;

[0335] Signal generated based on a chirp Chirp signal.

[0336] Optionally, at least one of the initial value, primitive polynomial, cyclic shift value, or truncation position of the PN sequence is associated with the second information; or

[0337] At least one of the root sequence number or cyclic shift value of the ZC sequence is associated with the second information; or

[0338] At least one of the frequency modulation slope or start frequency of the Chirp signal is associated with the second information;

[0339] Wherein, the second information includes at least one of the following:

[0340] Sensing area identifier, indication information on whether it is used for sensing, sensing service identifier, sensing service type identifier, sensed target identifier, label identifier associated with the sensed target, number of sensed targets, sensed measurement quantity identifier, device identifier participating in the sensing measurement, time domain resource information, frequency domain resource information, antenna port index, CDM antenna port group index, number of antenna ports, number of CDM antenna port groups, antenna index, maximum number of antennas, codeword index.

[0341] It should be noted that this embodiment is used in conjunction with Figure 3The implementation manner of the corresponding second device in the illustrated embodiment, for the specific implementation manner, reference may be made to Figure 3 the relevant description of the illustrated embodiment. To avoid repeated description, this embodiment will not be elaborated herein.

[0342] The method provided by the embodiments of the present application will be illustrated by multiple embodiments as follows:

[0343] Embodiment 1:

[0344] In this embodiment, the perception and communication process of device A transmitting and device B receiving is mainly described.

[0345] In this embodiment, taking the base station transmitting a signal and the UE receiving the signal for perception and communication as an example, the specific signal transmission, reception and interaction process is described, as Figure 13 shown, including the following steps:

[0346] Step 1. The perception network function sends perception requirement information (optionally) to the base station, and the perception requirement information is shown in Explanation 2.

[0347] Step 2. The base station sends the first information to the terminal, and the first information includes at least one of the following:

[0348] Configuration information of the target signal, measurement configuration information, and auxiliary information.

[0349] Among them, for the target signal configuration information, the target signal is a multi-antenna port signal, and the signal configuration information includes signal antenna port indication related information, and the signal antenna port indication related information includes at least one of the following:

[0350] Antenna port number information, including at least one of the total number of antenna ports N, the number of antenna ports x for perception, the number of antenna ports y for communication, and the number of common antenna ports (antenna ports simultaneously used for perception and communication) z;

[0351] Antenna port index information, including the entire antenna port index list, the perception antenna port index list, the communication antenna port index list, and the common antenna port (antenna ports simultaneously used for perception and communication) index list;

[0352] CDM antenna port group number information, including the total number of CDM antenna port groups, the number of CDM antenna port groups for perception (the CDM antenna port group only contains perception antenna ports), the number of CDM antenna port groups for communication (the CDM antenna port group only contains communication antenna ports), and the number of CDM antenna port groups simultaneously used for perception and communication (the corresponding CDM antenna port group contains both perception antenna ports and communication antenna ports, or contains common antenna ports);

[0353] CDM antenna port group index information, including all CDM antenna port group indexes, indexes of CDM antenna port groups for sensing (the CDM antenna port groups only contain sensing antenna ports), indexes of CDM antenna port groups for communication (the CDM antenna port groups only contain sensing antenna ports), indexes of CDM antenna port groups for both sensing and communication (the corresponding CDM antenna port groups contain both sensing antenna ports and communication antenna ports, or contain common antenna ports);

[0354] Indicator information for disabling OCC, indicating that the target signal does not use OCC mapping. It can be that different antenna ports in the same CDM antenna port group use different sequences to generate transmission signals, or each CDM antenna port group only contains a single antenna port, or a specified CDM antenna port group (the CDM antenna port group for sensing) only contains a single antenna port.

[0355] The above indicator for disabling OCC can be configured globally, indicating that all CDM antenna port groups do not use OCC mapping, or can be configured for each CDM antenna port group respectively. For example, only the CDM antenna port group for sensing does not use OCC mapping; it can also be that the CDM antenna port group that default contains sensing antenna ports does not use OCC mapping, or only supports single antenna ports and does not require explicit indication.

[0356] In addition to the above content, the configuration information of the target signal further includes at least one of the following:

[0357] Signal resource identifier, signal usage, waveform, subcarrier spacing, guard interval, starting position in frequency domain, length of frequency domain resource, interval of frequency domain resource, starting position in time domain, length of time domain resource, interval of time domain resource, signal power, sequence information, signal direction, QCL relationship, cyclic prefix information.

[0358] The above measurement configuration information includes at least one of the following:

[0359] Indicator of the signal resource to be measured, such as the signal resource identifier (ID);

[0360] Number of signal resources to be measured;

[0361] Indicator of the signal antenna ports to be measured, including at least one of the number of signal antenna ports to be measured and the antenna port index. For example, by indicating multiple antenna port indexes, sensing measurements based on signals of multiple antenna ports are performed. At this time, it is considered that the channels experienced by the signals of the multiple antenna ports are the same or similar, and joint measurements can be performed to obtain sensing measurement results, that is, the measurements of certain sensing measurement quantities are based on the signals of the multiple antenna ports;

[0362] The measured signal CDM antenna port group indication includes at least one of the number of measured signal CDM antenna port groups and the CDM antenna port group index. For example, by indicating multiple CDM antenna port group indexes, perception measurements based on signals of multiple CDM antenna port groups are performed. At this time, it is considered that the channels experienced by the signals of the multiple CDM antenna port groups are the same or similar, and joint measurements can be performed to obtain perception measurement results, that is, the measurement of a certain or certain perception measurement quantities is based on the signals of the multiple CDM antenna port groups;

[0363] Perception measurement quantity;

[0364] Reporting configuration, that is, the criterion for the second device to report measurement results, includes at least one of the time-frequency domain resource configuration for reporting, the reporting period, and the triggering event for reporting. Among them, the triggering event includes at least one of the following:

[0365] The event of entering a specific area (such as a cell);

[0366] The event of reaching a specific time;

[0367] Or the event that a certain type of measurement signal reaches a certain threshold;

[0368] Or the event that the device moves more than some predefined (straight-line) distance from its previous position;

[0369] Or the event that the device's orientation changes by more than some predefined angle;

[0370] Or the event that the device's movement speed exceeds some predefined speed threshold;

[0371] Or the event that the environmental information (such as temperature / humidity / light intensity) measured by the device's sensor changes by more than a certain range.

[0372] The above auxiliary information includes at least one of the following:

[0373] The number of data transmission layers / streams (less than or equal to the total number of antenna ports);

[0374] The number of channel ranks (Rank);

[0375] The transmit beam indication includes at least one of the total number of transmit beams, the number of sensing beams, and the number of communication beams;

[0376] The receive beam indication includes the recommended receive beam direction or the corresponding index;

[0377] The number of sensing targets;

[0378] Perceive the location information of the target or the direction information relative to the second device (to help the second device adjust the beam (spatial domain filtering coefficient) during signal reception);

[0379] The location information of the first device or the direction information of the first device relative to the second device.

[0380] Optionally, the above information can be used to implicitly indicate the communication antenna port and sensing antenna port configurations. For example, when the number of data transmission layers y < the total number of antenna ports N, the receiving end considers that among the N antenna ports, there are y communication antenna ports and N - y sensing antenna ports.

[0381] Among them, at least one of the configuration information of the target signal, the measurement configuration information, and the auxiliary information can also be sent by the sensing network function to the terminal (and the base station); and the configuration information of the target signal, the measurement configuration information, and the auxiliary information can be sent by the same signaling, or by different signallings, or two of them are sent by the same signaling and the other one is sent by a different signaling.

[0382] Step 3: The base station transmits the target signal.

[0383] Step 4: The terminal receives the target signal and performs communication measurements and sensing measurements to obtain sensing measurement results.

[0384] Step 5: The terminal sends the sensing measurement results to the sensing network function.

[0385] Step 6: The sensing network function calculates the sensing result based on the sensing measurement results. Optionally, it can also be that the terminal sends the sensing measurement results to the base station, and the base station calculates the sensing result based on the sensing measurement results and sends it to the sensing network function.

[0386] If the signal corresponding to the communication antenna port is a signal for channel measurement or beam management, it is also necessary to feedback communication-related measurement results, including but not limited to at least one of precoding matrix indicator (PMI), rank indicator (RI), channel quality indicator (CQI), reference signal received power (RSRP), reference signal received quality (RSRQ), received signal strength indication (RSSI), signal noise ratio (SNR), signal to interference plus noise ratio (SINR), bit error ratio (BER), block error rate (BLER), and beam indication (such as beam index).

[0387] The above perception result is further calculated based on the perception measurement result. The perception measurement result and the perception result are the values of the perception measurement quantity. For example, the perception measurement result is the time delay and angle information corresponding to the perception target, and the perception result is the position or trajectory information of the perception target.

[0388] It should be noted that for the scenario of device A sending and device B receiving perception and communication, it can also be that after the terminal receives the first information, it sends a target signal according to the first information, and the base station receives the signal, performs measurement to obtain the perception measurement result, and sends it to the perception network function; or it can be that the base stations send and receive target signals to each other, or the terminals send and receive target signals to each other. This embodiment does not limit this.

[0389] Embodiment 2:

[0390] This embodiment mainly describes the self-transmitting and self-receiving perception and communication process.

[0391] In this embodiment, taking the base station sending a target signal and receiving the echo of the target signal for perception as an example, the specific signal transmission, reception, and interaction process is described as follows Figure 14 shown, including the following steps:

[0392] Step 1: The perception network function sends perception requirement information to the base station (optionally).

[0393] Step 2: The base station sends the first information to the terminal. The first information includes at least one of the following:

[0394] Configuration information of the target signal

[0395] Measurement configuration information (when the target signal is a reference signal used by the terminal for channel estimation and demodulation, there is no need to send measurement configuration information);

[0396] Auxiliary information

[0397] Step 3: The base station sends the target signal.

[0398] Step 4: Receive the target signal and perform measurements, which can include the following two methods:

[0399] The base station performs measurements based on the received echo of the target signal to obtain the perception measurement result;

[0400] The terminal receives the target signal and performs measurements to obtain the communication measurement result; or, the terminal receives the target signal and uses it for channel estimation and demodulation.

[0401] Step 5: Feedback of the measurement results, which can include the following two methods:

[0402] The base station sends the perception measurement result to the perception network function;

[0403] The terminal sends the communication measurement result to the base station. When the target signal is a reference signal used by the terminal for channel estimation and demodulation, there is no need to feedback the measurement result.

[0404] Step 6: The perception network function calculates the perception result according to the perception measurement result. Optionally, it can also be that the base station calculates the perception result according to the perception measurement result and sends it to the perception network function.

[0405] It should be noted that for the scenario of self-sensing and self-communicating, it can also be that after the terminal receives the first information, it sends the target signal according to the first information, the terminal receives the echo of the target signal and performs measurements to obtain the perception measurement result and sends it to the perception network function, the base station receives the target signal and performs measurements to obtain the communication measurement result, or the base station receives the target signal for channel estimation and demodulation.

[0406] Embodiment 3:

[0407] This embodiment mainly describes the sequence generation of the target signal for sensing.

[0408] In this embodiment, the specific method of generating different sequences for signals of different antenna ports is further described.

[0409] The generation method of the signal sequence of each antenna port can be at least one of the following:

[0410] Generated based on the PN sequence;

[0411] Generated based on ZC sequences (or circularly extended sequences of ZC sequences, truncated sequences of ZC sequences);

[0412] Generated based on Chirp signals.

[0413] If the sequence is generated based on a PN sequence and is associated with the second information, for example, by performing quadrature phase shift keying (QPSK) modulation, then the initial value of the PN sequence, or the primitive polynomial of the PN sequence, or the cyclic shift value of the PN sequence, or the truncation position of the PN sequence (i.e., the generation of the sequence can be to obtain the overall sequence based on the system bandwidth and then truncate it based on the actual bandwidth) is associated with the second information;

[0414] If the sequence is generated based on a ZC sequence, then the root sequence number or cyclic shift value of the ZC sequence is associated with the second information;

[0415] If the sequence is generated based on a Chirp signal, then the frequency modulation slope or starting frequency of the Chirp signal is associated with the second information.

[0416] Wherein, the second information includes at least one of the following:

[0417] Perception area identifier;

[0418] An identifier indicating whether it is used for perception, or a perception service identifier, or a perception service type identifier;

[0419] Perception target identifier, identifier of the tag associated with the perception target;

[0420] Number of perception targets;

[0421] Perception measurement quantity identifier;

[0422] Identifier of the device participating in the perception measurement, which can be, for example, a cell identifier or a terminal identifier, such as a Radio Network Temporary Identifier (RNTI);

[0423] Time domain resource information;

[0424] Frequency domain resource information;

[0425] Antenna port index;

[0426] CDM antenna port group index;

[0427] Number of antenna ports;

[0428] Number of CDM antenna port groups;

[0429] Antenna index, or antenna group index / sub-array index / antenna panel index

[0430] Maximum number of antennas, or number of antenna groups / sub-arrays / antenna panels

[0431] Codeword index.

[0432] Among them, the time-domain resource information may include one of the following

[0433] Wireless frame index, sub-frame index, time slot index, symbol index, duration, time-domain density, CP type, CP length, and may also be the coherent processing time window index or the number of coherent processing time windows;

[0434] Among them, the wireless frame index, sub-frame index, time slot index, and symbol index may be the wireless frame index and sub-frame index defined by the communication system, or the relative wireless frame index and sub-frame index within the sensing coherent processing time window / sensing resource block, or the symbol index within the time slot, or the symbol index within the coherent processing time window / sensing resource block, or the time slot index within the wireless frame, or the time slot index within the coherent processing time window / sensing resource block.

[0435] The above-mentioned coherent processing time window is the time window for calculating and outputting the sensing measurement result each time (for example, the time-domain resource length corresponding to the range-Doppler map obtained by performing a two-dimensional FFT operation), and may include multiple time slots / symbols.

[0436] The above-mentioned frequency-domain resource information may include at least one of the following: RE index, RB index, frequency point information, frequency band information, bandwidth, frequency-domain density, sub-carrier spacing.

[0437] The above-mentioned frequency-domain resource information may also introduce the sensing resource block index. The sensing resource block contains multiple physical resource blocks (Physical Resource Block, PRB) and multiple time slots / symbols, that is, it contains specific time-frequency domain resources (for example, the frequency-domain resource length and time-domain resource length corresponding to the range-Doppler map obtained by performing a two-dimensional FFT operation);

[0438] The further description of the above-mentioned second information and sequence generation is as follows:

[0439] Sensing area identifier:

[0440] The sensing area is the target area to be sensed, which can be pre-divided and includes:

[0441] Multiple base station coverage areas (cells) form a sensing area, associated with a sensing area identifier n areaID , such as Figure 15As shown, each hexagonal area represents the coverage area of a base station, and areas with the same number represent the same sensing area. In particular, the RAN-based notification area (RNA) can be used as a sensing area, and the RNA ID can be used as the identifier of the sensing area.

[0442] The coverage area (cell) of a single base station contains multiple sensing areas and is associated with multiple sensing area identifiers. For example, with the base station as the origin, its coverage range is rasterized into multiple sensing areas, and each area is associated with an area ID denoted as n. areaID , such as Figure 16 As shown, the dotted line represents the coverage area of the base station, and each square represents the divided sensing area.

[0443] It is also possible to directly use geographical area identifiers such as longitude and latitude or coordinate positions that have nothing to do with the base station location to generate the area ID n. areaID .

[0444] It is also possible to associate different angular ranges relative to the base station with different area IDs n. areaID , for example, the azimuth angle x1° to x2° and the elevation angle y1° to y2° correspond to the sensing area ID1, where x and y are real numbers.

[0445] The above indication information (such as identifier) for sensing, or the sensing service identifier, or the sensing service type identifier can be generated as follows:

[0446] Based on the identifier for whether it is used for sensing, when it is not used for sensing, n sensingID = 0; when it is used for sensing, n sensingID = 1.

[0447] Based on the specific sensing service identifier, such as different sensing services corresponding to different sensing service IDs n sensingID , where the sensing services can be, for example, the following:

[0448] Detecting the presence of a target, positioning, speed detection, distance detection, angle detection, acceleration detection, material analysis, component analysis, shape detection, category classification, Radar Cross Section (RCS) detection, polarization scattering characteristic detection, fall detection, intrusion detection, quantity statistics, indoor positioning, gesture recognition, lip reading recognition, gait recognition, expression recognition, face recognition, respiration monitoring, heart rate monitoring, pulse monitoring, humidity / brightness / temperature / atmospheric pressure monitoring, air quality monitoring, weather condition monitoring, environmental reconstruction, terrain and landform, building / vegetation distribution detection, pedestrian or vehicle flow detection, crowd density / vehicle density detection, etc.

[0449] It can also be an identifier of the sensing service type, with different categories corresponding to different sensing service IDs n sensingID , for example, dividing the sensing function or service type by scope scale, such as:

[0450] The first category (short distance / small range): material analysis, component analysis, gesture recognition, lip reading recognition, gait recognition, expression recognition, face recognition, respiration monitoring, heart rate monitoring, pulse monitoring, etc.;

[0451] The second category (medium distance / medium range): intrusion detection, quantity statistics, indoor positioning, etc.;

[0452] The third category (long distance / large range): humidity / brightness / temperature / atmospheric pressure monitoring, air quality monitoring, weather condition monitoring, environmental reconstruction, terrain and landform, building / vegetation distribution detection, human or vehicle flow detection, etc.

[0453] There can also be other classification criteria, such as being classified into positioning-type sensing, imaging-type sensing, pattern recognition-type sensing, etc. according to functions; it can also be divided according to power consumption / energy consumption, resource occupancy, etc.

[0454] It can also be generating a sensing signal according to the measurement quantity identifier, that is, at least one of the sensing measurement quantities is associated with a measurement quantity identifier. For example, as shown in Table 4 below:

[0455] Table 4:

[0456] Measurement Quantity ID Perceived Measurement Quantity ID1 Time Delay / Distance ID2 Doppler / Velocity ID3 Angle ID4 Time Delay / Distance, Doppler / Velocity ID4 Time Delay / Distance, Doppler / Velocity, Angle … …

[0457] Among them, for the sensing measurement quantity, refer to the above description and will not be elaborated here.

[0458] The above sensing target identifier (or the Tag identifier associated with the sensing target) can be as follows:

[0459] The signal sending device obtains the identifier of the sensing target, and different sensing targets correspond to different sensing target IDs n targetID , where the determination of the sensing target can be based on the prior information obtained from the existing measurement results. For example, base station A sends a sensing measurement signal through an omnidirectional beam for preliminary measurement, base station A obtains a range-Doppler map (or a range-angle map, etc.), determines the number of targets according to the range-Doppler map, and assigns an ID to each target; or, base station A sends a sensing measurement signal through an omnidirectional beam for preliminary measurement, the receiving device (such as other base stations or terminals) obtains a range-Doppler map (or a range-angle map, etc.), determines the number of targets according to the range-Doppler map, and assigns an ID to each target, and then notifies the target ID or target-related information to the sending base station.

[0460] After the signal transmission device determines the ID of each target, it generates signals for sensing different targets according to different target IDs, and these sensing signals are transmitted using different beams, and the beam directions point to the sensing targets associated with the target IDs;

[0461] The sensing target is equipped with a Tag, and different Tags are associated with different Tag IDs. The transmitting device obtains the Tag ID of the corresponding target, and then obtains the signals for sensing different targets. The Tag can be a device that supports backscatter communication, and its excitation source can be a device other than the Tag, or the excitation source is the Tag itself. It can also be a terminal, that is, a general transceiver module is installed on the sensing target. For example, a communication device such as a vehicle terminal is installed on a car.

[0462] It can also be an identifier of the sensing target type, and different types correspond to different sensing target IDs. For example, they are divided into stationary targets and moving targets, and the latter can be further divided into high-speed targets and low-speed targets. Different types of targets correspond to different n targetID 。

[0463] Specifically, taking the sensing area identifier n areaID as an example, the initial value of the PN sequence can be:

[0464] c init =n areaID ,where n areaID is the sensing area identifier; or

[0465] or,

[0466] or, or

[0467] Among them, is the number of symbols in each time slot, is the time slot index within the radio frame, l is the symbol index within the time slot, n areaID is the sensing area identifier, and x is a non-negative positive integer.

[0468] Among them, the coefficient parameter of the previous term in the initialization formula can be determined according to the value ranges of the variables and the coefficient parameters of the following several terms. For example, if there are 1000 sensing area IDs in total and they need to be represented by 10-bit binary numbers, then x can be set to 10 to ensure that no repeated generated sequences occur. Among them, A is a non-negative positive integer, and A can be set to 31.

[0469] or Among them is a physical cell identifier, or it can be or where x and y are non - negative positive integers. c init =(2 x n RNTI +n areaID )mod2 A or c init =2 x n RNTI +n areaID , where n RNTI is the terminal identifier, where x and A are non - negative positive integers, and A can be set to 31.

[0470] or or it can be or where x, y, and A are non - negative positive integers, and A can be set to 31.

[0471] or where q is the codeword index, or it can be or where x, y, and A are non - negative positive integers, and A can be set to 31.

[0472] Or, taking the sensing area identifier and the sensing target identifier as an example, the initial value of the PN sequence can be: or

[0473] Or, taking the antenna port index n port as an example, the initial value of the PN sequence can be:

[0474] or

[0475] or

[0476] or

[0477]

[0478] where x, y, z, and A are non - negative positive integers, A can be set to 31, and n port is the antenna port index, is the physical cell identifier, is the number of symbols per time slot, is the time slot index within the radio frame, l is the symbol index within the time slot, and nperiod is the coherent processing time window index. It should be noted that among them, the symbol index l and the time slot index It can be the symbol index and time slot index corresponding to a certain symbol within a certain sensing coherent processing time window.

[0479] Alternatively, taking the sensing coherent processing time window index n period and the antenna port index n port as an example, the initial value of the PN sequence can be:

[0480] c init =(2 x (n period +1)+n port )mod2 A or c init =2 x (n period +1)+n port

[0481] Or or or or

[0482] where represents the number of time slots corresponding to each coherent processing time window, the time slot index within the coherent processing time window.

[0483] The signal sequence can also be generated based on the ZC sequence. The sensing signal generated in this way has a smaller peak-to-average power ratio (PAPR) compared to the method of generating the sensing signal based on the PN sequence, has a higher power amplifier efficiency, and is beneficial to improving the sensing measurement coverage performance. Among them, the root sequence number value or cyclic shift value of the ZC sequence is associated with the first information. Specifically, the generation method can be:

[0484] Determine according to the root sequence number q

[0485] and then obtain the base sequence Nzc is the largest prime number less than the sequence length M. Further, the sensing signal is obtained by cyclic shift:

[0486] where the sequence length M is related to the sensing signal resource and the sequence length. For example, according to the sensing signal bandwidth and the frequency domain resource interval, the number of frequency domain resource units used to transmit the sensing signal is determined, that is, the length of the sequence.

[0487] Among them, the cyclic shift value α and the root sequence number q are associated with the first piece of information. The association method can be that if the sensing area identifier is an 8-bit ID, all or part of the 8 bits can be used to calculate the root sequence number q or the cyclic shift value α of the sequence. For example, the cyclic shift value α can be determined by the first 4 bits of the ID, and the root sequence number q is determined by the last 4 bits of the ID. Another example is that the cyclic shift value α is determined according to the sensing service identifier, and the root sequence number q is determined according to the sensing area identifier. There may be a preset mapping relationship between different sensing area identifiers and the root sequence number q, as shown in Table 5 below. This preset mapping relationship is agreed upon or obtained through signaling messages.

[0488] Table 5:

[0489] Perceived Region ID Root Serial Number q ID1 X1 ID2 X2 … …

[0490] It can also be calculated according to a formula. Specifically, the calculation of the root sequence number q can be, for example:

[0491]

[0492]

[0493] Among them, u ∈ {0, 1,..., 29} is the group number, and v is the base sequence number within the group. Taking the sensing area identifier as an example again, the value can be u = (n areaID ) mod 30, v = 0.

[0494] The calculation method of the cyclic shift value can be Among them, is the maximum value in the area identifier.

[0495] It can also be to generate a signal sequence based on a Chirp or FMCW signal, where the frequency modulation slope of the Chirp or FMCW signal is associated with the first piece of information. FMCW transmits a waveform whose frequency changes with time, usually linearly. One frequency modulation period of the FMCW waveform is generally also called a Chirp, as Figure 17 shown.

[0496] The Chirp signal can be expressed by the following formula:

[0497]

[0498] Among them, A 0 is the amplitude, f c is the starting frequency, |k| = ±B / T is the frequency modulation slope, where B is the bandwidth and T is the Chirp duration (i.e., the frequency modulation period of FMCW).

[0499] Among them, different frequency modulation slopes are associated with the second information. For example, different sensing services have different requirements for bandwidth and Chirp duration, that is, different requirements for frequency modulation slopes. There may be a preset mapping relationship between different sensing service IDs and different frequency modulation slopes.

[0500] In addition, different starting frequencies are associated with the second information. For example, there is a preset mapping relationship between different sensing regions and starting frequencies.

[0501] The method provided by the embodiments of the present application can solve the problem of large overhead when configuring and allocating time and frequency domain resources for sensing signals and communication signals independently, and at the same time ensure that the sensing performance meets the requirements by reasonably allocating signal resources of multiple antenna ports. The methods include the allocation and resource mapping of sensing antenna ports and communication antenna ports under the same signal type; using multiple signal antenna ports of different CDM antenna port groups jointly for sensing; when a certain CDM antenna port group includes sensing antenna ports, restricting the number of antenna ports in the CDM antenna port group, or not using OCC mapping, etc. Specific methods for selecting and allocating antenna ports, signal generation, resource mapping, as well as signal sending and indication are given.

[0502] For the communication sensing method provided by the embodiments of the present application, the execution subject may be a communication sensing device. In the embodiments of the present application, taking the communication sensing device executing the communication sensing method as an example, the communication sensing device provided by the embodiments of the present application is described.

[0503] For the signal receiving method provided by the embodiments of the present application, the execution subject may be a signal receiving device. In the embodiments of the present application, taking the signal receiving device executing the signal receiving method as an example, the signal receiving device provided by the embodiments of the present application is described.

[0504] Please refer to Figure 18 , Figure 18 which is a structural diagram of a communication sensing device provided by the embodiments of the present application. As Figure 18 shown, the communication sensing device 1800 includes:

[0505] A first sending module 1801, configured to send a target signal through x antenna ports, where the target signal sent through the x antenna ports is used for sensing, and x is an integer greater than or equal to 1;

[0506] A second sending module 1802, configured to send the target signal through y antenna ports, where the target signal sent through the y antenna ports is used for communication, and y is an integer greater than or equal to 1.

[0507] Optionally, there are common antenna ports among the x antenna ports and the y antenna ports, and the target signal sent by the common antenna ports is used for both sensing and communication.

[0508] Optionally, the value of x is associated with at least one of the following:

[0509] The number of sensed targets, the number of sensing beams.

[0510] Optionally, the value of y is associated with at least one of the following:

[0511] Channel rank, the number of devices supporting simultaneous communication, the number of transmission layers, system throughput.

[0512] Optionally, when x>1, the x antenna ports use the same transmit beam; or,

[0513] When x>1, the x antenna ports use the same spatial domain filter or spatial domain filtering coefficient.

[0514] Optionally, when x>1, the x antenna ports belong to different code division multiplexing (CDM) antenna port groups; or,

[0515] At least two of the x antenna ports belong to the same CDM antenna port group.

[0516] Optionally, the target signal transmitted through at least two antenna ports in the first CDM antenna port group has at least one of the following characteristics:

[0517] Generated based on different sequences;

[0518] Does not use orthogonal cover code (OCC) mapping;

[0519] Wherein, the first CDM antenna port group includes the antenna ports among the x antenna ports.

[0520] Optionally, the second CDM antenna port group including the antenna ports among the x antenna ports contains only one antenna port.

[0521] Optionally, there are antenna ports in the third CDM antenna port group among the x antenna ports, and there are antenna ports in the third CDM antenna port group among the y antenna ports.

[0522] Optionally, the device further includes:

[0523] A third transmission module, configured to send first information to a second device, where the first information includes at least one of the following:

[0524] Configuration information of the target signal, measurement configuration information, auxiliary information;

[0525] Wherein, the auxiliary information is used to assist at least one of sensing measurement and communication.

[0526] Optionally, the configuration information of the target signal includes at least one of the following:

[0527] Antenna port information, signal resource identifier, signal usage, waveform, subcarrier spacing, guard interval, starting frequency-domain position, frequency-domain resource length, frequency-domain resource interval, starting time-domain position, time-domain resource length, time-domain resource interval, signal power, sequence information, signal direction, quasi-co-location (QCL) relationship, cyclic prefix information.

[0528] Optionally, the antenna port information includes at least one of the following:

[0529] Antenna port number information, antenna port index information, number of CDM antenna port groups information, CDM antenna port group index information, indication information for disabling orthogonal cover code (OCC).

[0530] Optionally, the antenna port number information includes at least one of the following:

[0531] The total number of antenna ports corresponding to the target signal, the number of antenna ports for sensing, the number of antenna ports for communication, the number of general antenna ports; or,

[0532] The antenna port index information includes at least one of the following:

[0533] The index information of all antenna ports corresponding to the target signal, the index information of antenna ports for sensing, the index information of antenna ports for communication, the index information of general antenna ports; or,

[0534] The number of CDM antenna port groups information includes at least one of the following:

[0535] The total number of CDM antenna port groups corresponding to the target signal, the number of CDM antenna port groups for sensing, the number of CDM antenna port groups for communication, the number of general CDM antenna port groups, where the general CDM antenna port group includes antenna ports for sensing and antenna ports for communication, or includes general antenna ports; or,

[0536] The CDM antenna port group index information includes at least one of the following:

[0537] The index information of all CDM antenna port groups corresponding to the target signal, the index information of CDM antenna port groups for sensing, the index information of CDM antenna port groups for communication, the index information of general CDM antenna port groups, where the general CDM antenna port group includes antenna ports for sensing and antenna ports for communication, or includes general antenna ports;

[0538] Among them, the general antenna port is an antenna port used for both sensing and communication.

[0539] Optionally, the indication information for disabling OCC is used for at least one of the following:

[0540] Indicating that OCC mapping is not adopted within the same CDM antenna port group;

[0541] Implicitly indicating that the CDM antenna port group for sensing includes only one antenna port.

[0542] Optionally, the measurement configuration information includes at least one of the following:

[0543] Signal resource indication for measurement, number of signal resources for measurement, antenna port indication for measurement, CDM antenna port group indication for measurement, sensing measurement quantity, measurement result reporting configuration.

[0544] Optionally, the auxiliary information includes at least one of the following:

[0545] Number of data transmission layers, number of data transmission streams, channel rank number, transmit beam indication, receive beam indication, number of sensing targets, location information of sensing targets, direction information of sensing targets relative to the second device, location information of the first device, direction information of the first device relative to the second device.

[0546] Optionally, the auxiliary information is also used to implicitly indicate relevant information of at least one of the x antenna ports and the y antenna ports.

[0547] Optionally, the target signal transmitted through at least two antenna ports within the first CDM antenna port group includes at least one of the following:

[0548] Signal generated based on a pseudo-random PN sequence;

[0549] Generating pseudo-random based on a ZC sequence;

[0550] Signal generated based on a chirp Chirp signal.

[0551] Optionally, at least one of the initial value, primitive polynomial, cyclic shift value, or truncation position of the PN sequence is associated with the second information; or

[0552] At least one of the root sequence number or cyclic shift value of the ZC sequence is associated with the second information; or

[0553] At least one of the frequency modulation slope or starting frequency of the Chirp signal is associated with the second information;

[0554] Among them, the second information includes at least one of the following:

[0555] Perception area identifier, indication information on whether it is used for perception, perception service identifier, perception service type identifier, perception target identifier, label identifier associated with the perception target, number of perception targets, perception measurement quantity identifier, device identifier participating in the perception measurement, time domain resource information, frequency domain resource information, antenna port index, CDM antenna port group index, number of antenna ports, number of CDM antenna port groups, antenna index, maximum number of antennas, codeword index.

[0556] Optionally, the device further includes:

[0557] A measurement module, configured to perform perception measurement on the target signal to obtain a perception measurement result.

[0558] The above communication perception device can reduce the complexity of perception measurement and communication.

[0559] In the embodiments of the present application, the communication perception device may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. For example: The electronic device may be a terminal or other devices other than the terminal. Exemplarily, the terminal may include, but is not limited to, the types of terminals listed in the embodiments of the present application, and other devices may be a server, a Network Attached Storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0560] The communication perception device provided in the embodiments of the present application can implement Figure 5 each process implemented by the method embodiment shown, and achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0561] Please refer to Figure 19 , Figure 19 is a structural diagram of a signal receiving device provided in the embodiments of the present application. As Figure 19 shown, the signal receiving device 1900 includes:

[0562] An execution module 1901, configured to perform a receiving operation, and the receiving operation includes:

[0563] Receiving a target signal sent by a first device through y antenna ports; or,

[0564] Receiving the target signal sent by the first device through y antenna ports, and the first device receiving the target signal sent through x antenna ports;

[0565] Wherein, the target signal sent through y antenna ports is used for communication, and y is an integer greater than or equal to 1;

[0566] The target signal transmitted through x antenna ports is used for sensing, where x is an integer greater than or equal to 1.

[0567] Optionally, there are common antenna ports among the x antenna ports and the y antenna ports, and the target signal transmitted by the common antenna ports is used for sensing and communication.

[0568] Optionally, the value of x is associated with at least one of the following:

[0569] The number of sensing targets, the number of sensing beams.

[0570] Optionally, the value of y is associated with at least one of the following:

[0571] Channel rank, the number of devices supporting simultaneous communication, the number of transmission layers, system throughput.

[0572] Optionally, when x is greater than 1, the same receiving beam is used for the x antenna ports; or,

[0573] When x is greater than 1, the same spatial domain filter or spatial domain filtering coefficient is used for the x antenna ports.

[0574] Optionally, the target signal transmitted through at least two antenna ports in the first CDM antenna port group has at least one of the following characteristics:

[0575] Generated based on different sequences;

[0576] Do not use orthogonal cover code (OCC) mapping;

[0577] Wherein, the first CDM antenna port group includes the antenna ports among the x antenna ports.

[0578] Optionally, the second CDM antenna port group including the antenna ports among the x antenna ports only contains one antenna port.

[0579] Optionally, there are antenna ports in the third CDM antenna port group among the x antenna ports, and there are antenna ports in the third CDM antenna port group among the y antenna ports.

[0580] Optionally, the device further includes:

[0581] A receiving module, configured to receive first information sent by the first device, where the first information includes at least one of the following:

[0582] Configuration information of the target signal, measurement configuration information, auxiliary information;

[0583] Among them, the auxiliary information is used to assist at least one of sensing measurement and communication.

[0584] Optionally, the configuration information of the target signal includes at least one of the following:

[0585] Antenna port information, signal resource identifier, waveform, subcarrier spacing, guard interval, starting frequency domain position, frequency domain resource length, frequency domain resource interval, starting time domain position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction, quasi co-location (QCL) relationship, cyclic prefix information.

[0586] Optionally, the antenna port information includes at least one of the following:

[0587] Antenna port number information, antenna port index information, number of CDM antenna port groups information, CDM antenna port group index information, indication information for disabling orthogonal cover code (OCC).

[0588] Optionally, the antenna port number information includes at least one of the following:

[0589] The total number of antenna ports corresponding to the target signal, the number of antenna ports for sensing, the number of antenna ports for communication, the number of common antenna ports; or,

[0590] The antenna port index information includes at least one of the following:

[0591] Index information of all antenna ports corresponding to the target signal, index information of antenna ports for sensing, index information of antenna ports for communication, index information of common antenna ports; or,

[0592] The number of CDM antenna port groups information includes at least one of the following:

[0593] The total number of CDM antenna port groups corresponding to the target signal, the number of CDM antenna port groups for sensing, the number of CDM antenna port groups for communication, the number of common CDM antenna port groups, the common CDM antenna port group includes antenna ports for sensing and antenna ports for communication, or the common CDM antenna port group includes common antenna ports; or,

[0594] The CDM antenna port group index information includes at least one of the following:

[0595] Index information of all CDM antenna port groups corresponding to the target signal, index information of CDM antenna port groups for sensing, index information of CDM antenna port groups for communication, index information of common CDM antenna port groups, the common CDM antenna port group includes antenna ports for sensing and antenna ports for communication, or the common CDM antenna port group includes common antenna ports;

[0596] Among them, the general antenna port is an antenna port that is simultaneously used for sensing and communication.

[0597] Optionally, the indication information for disabling OCC is used for at least one of the following:

[0598] Indicate that OCC mapping is not adopted within the same CDM antenna port group;

[0599] Implicitly indicate that the CDM antenna port group for sensing only includes one antenna port.

[0600] Optionally, the measurement configuration information includes at least one of the following:

[0601] Signal resource indication for measurement, number of signal resources for measurement, antenna port indication for measurement, CDM antenna port group indication for measurement, sensing measurement quantity, measurement result reporting configuration.

[0602] Optionally, the auxiliary information includes at least one of the following:

[0603] Number of data transmission layers, number of data transmission streams, channel rank number, transmit beam indication, receive beam indication, number of sensing targets, location information of sensing targets, direction information of sensing targets relative to the second device, location information of the first device, direction information of the first device relative to the second device.

[0604] Optionally, the auxiliary information is also used to implicitly indicate the relevant information of at least one of the x antenna ports and the y antenna ports.

[0605] Optionally, the target signal sent through at least two antenna ports within the first CDM antenna port group includes at least one of the following:

[0606] Signal generated based on a pseudo-random PN sequence;

[0607] Generate pseudo-random based on a ZC sequence;

[0608] Signal generated based on a chirp Chirp signal.

[0609] Optionally, at least one of the initial value, primitive polynomial, cyclic shift value, or truncation position of the PN sequence is associated with the second information; or

[0610] At least one of the root sequence number or cyclic shift value of the ZC sequence is associated with the second information; or

[0611] At least one of the frequency modulation slope or starting frequency of the Chirp signal is associated with the second information;

[0612] Among them, the second information includes at least one of the following:

[0613] Perception area identifier, indication information on whether it is used for perception, perception service identifier, perception service type identifier, perception target identifier, label identifier associated with the perception target, number of perception targets, perception measurement quantity identifier, device identifier participating in perception measurement, time domain resource information, frequency domain resource information, antenna port index, CDM antenna port group index, number of antenna ports, number of CDM antenna port groups, antenna index, maximum number of antennas, codeword index.

[0614] The above signal receiving device can reduce the complexity of perception measurement and communication.

[0615] The signal receiving device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal or a network-side device.

[0616] The signal receiving device provided in the embodiments of the present application can implement Figure 12 each process implemented by the method embodiment shown and achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0617] Optionally, as Figure 20 shown, the embodiments of the present application further provide a communication device 2000, including a processor 2001 and a memory 2002. A program or instruction that can run on the processor 2001 is stored on the memory 2002. For example, when the communication device 2000 is the first device, when the program or instruction is executed by the processor 2001, it implements each step of the above communication perception method embodiment and can achieve the same technical effect. When the communication device 2000 is the second device, when the program or instruction is executed by the processor 2001, it implements each step of the above signal receiving method embodiment and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0618] The embodiments of the present application further provide a communication device, including a processor and a communication interface. The communication interface is used to send a target signal through x antenna ports, and the target signal sent through the x antenna ports is used for perception, where x is an integer greater than or equal to 1; the target signal is sent through y antenna ports, and the target signal sent through the y antenna ports is used for communication, where y is an integer greater than or equal to 1. This communication device embodiment corresponds to the above communication perception method embodiment. Each implementation process and implementation manner of the above method embodiment can be applied to this communication device embodiment and can achieve the same technical effect.

[0619] Specifically, Figure 21 A schematic diagram of the hardware structure of a device for implementing the embodiments of the present application. The device is the first device or the second device.

[0620] The device 2100 includes, but is not limited to, at least some components such as a radio frequency unit 2101, a network module 2102, an audio output unit 2103, an input unit 2104, a sensor 2105, a display unit 2106, a user input unit 2107, an interface unit 2108, a memory 2109, and a processor 2110.

[0621] Those skilled in the art can understand that the device 2100 may further include a power source (such as a battery) for powering each component. The power source can be logically connected to the processor 2110 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system. Figure 21 The device structure shown does not limit the device. The device may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0622] It should be understood that in the embodiments of the present application, the input unit 2104 may include a Graphics Processing Unit (GPU) 21041 and a microphone 21042. The graphics processing unit 21041 processes the image data of static pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 2106 may include a display panel 21061, and the display panel 21061 may be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 2107 includes at least one of a touch panel 21071 and other input devices 21072. The touch panel 21071 is also called a touch screen. The touch panel 21071 may include two parts: a touch detection device and a touch controller. The other input devices 21072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be elaborated here.

[0623] In the embodiments of the present application, after the radio frequency unit 2101 receives downlink data from a network-side device, it can be transmitted to the processor 2110 for processing; in addition, the radio frequency unit 2101 can send uplink data to the network-side device. Generally, the radio frequency unit 2101 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0624] The memory 2109 can be used to store software programs or instructions and various data. The memory 2109 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data. Among them, the first storage area may store an operating system, application programs or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 2109 may include a volatile memory or a non-volatile memory, or the memory 2109 may include both a volatile and a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (Synchronous DRAM, SDRAM), a double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), an enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), a synchronous link dynamic random access memory (Synch link DRAM, SLDRAM), and a direct rambus random access memory (Direct Rambus RAM, DRRAM). The memory 2109 in the embodiments of the present application includes, but is not limited to, these and any other suitable types of memories.

[0625] The processor 2110 may include one or more processing units; optionally, the processor 2110 integrates an application processor and a modem processor. Among them, the application processor mainly processes operations related to the operating system, user interface, and application programs, etc., and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above modem processor may not be integrated into the processor 2110 either.

[0626] In this embodiment, taking the above device as the first device and the first device being a terminal as an example for illustration.

[0627] The radio frequency unit 2101 is configured to transmit a target signal through x antenna ports, where the target signal transmitted through the x antenna ports is used for sensing, and x is an integer greater than or equal to 1; and transmit the target signal through y antenna ports, where the target signal transmitted through the y antenna ports is used for communication, and y is an integer greater than or equal to 1.

[0628] Optionally, there are common antenna ports among the x antenna ports and the y antenna ports, and the target signal transmitted through the common antenna ports is used for both sensing and communication.

[0629] Optionally, the value of x is associated with at least one of the following:

[0630] The number of sensing targets, the number of sensing beams.

[0631] Optionally, the value of y is associated with at least one of the following:

[0632] Channel rank, the number of devices supporting simultaneous communication, the number of transmission layers, system throughput.

[0633] Optionally, when x > 1, the x antenna ports use the same transmit beam; or,

[0634] When x > 1, the x antenna ports use the same spatial filter or spatial filtering coefficient.

[0635] Optionally, when x > 1, the x antenna ports belong to different code division multiplexing (CDM) antenna port groups; or,

[0636] At least two of the x antenna ports belong to the same CDM antenna port group.

[0637] Optionally, the target signal transmitted through at least two antenna ports in the first CDM antenna port group has at least one of the following characteristics:

[0638] Generated based on different sequences;

[0639] Does not use orthogonal cover code (OCC) mapping;

[0640] Wherein, the first CDM antenna port group includes the antenna ports among the x antenna ports.

[0641] Optionally, the second CDM antenna port group including the antenna ports among the x antenna ports contains only one antenna port.

[0642] Optionally, there are antenna ports in the third CDM antenna port group among the x antenna ports, and there are antenna ports in the third CDM antenna port group among the y antenna ports.

[0643] Optionally, the radio frequency unit 2101 is further configured to:

[0644] Send first information to a second device, where the first information includes at least one of the following:

[0645] Configuration information of the target signal, measurement configuration information, auxiliary information;

[0646] where the auxiliary information is used to assist at least one of sensing measurement and communication.

[0647] Optionally, the configuration information of the target signal includes at least one of the following:

[0648] Antenna port information, signal resource identifier, signal usage, waveform, subcarrier spacing, guard interval, starting frequency domain position, frequency domain resource length, frequency domain resource interval, starting time domain position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction, quasi co-location (QCL) relationship, cyclic prefix information.

[0649] Optionally, the antenna port information includes at least one of the following:

[0650] Antenna port number information, antenna port index information, CDM antenna port group number information, CDM antenna port group index information, indication information for disabling orthogonal cover code (OCC).

[0651] Optionally, the antenna port number information includes at least one of the following:

[0652] Total number of antenna ports corresponding to the target signal, number of antenna ports for sensing, number of antenna ports for communication, number of common antenna ports; or,

[0653] Optionally, the antenna port index information includes at least one of the following:

[0654] Index information of all antenna ports corresponding to the target signal, index information of antenna ports for sensing, index information of antenna ports for communication, index information of common antenna ports; or,

[0655] Optionally, the CDM antenna port group number information includes at least one of the following:

[0656] The total number of CDM antenna port groups corresponding to the target signal, the number of CDM antenna port groups for sensing, the number of CDM antenna port groups for communication, the general CDM antenna port group, where the general CDM antenna port group includes antenna ports for sensing and antenna ports for communication, or the general CDM antenna port group includes general antenna ports; or,

[0657] The CDM antenna port group index information includes at least one of the following:

[0658] The index information of all CDM antenna port groups corresponding to the target signal, the index information of CDM antenna port groups for sensing, the index information of CDM antenna port groups for communication, the index information of the general CDM antenna port group, where the general CDM antenna port group includes antenna ports for sensing and antenna ports for communication, or the general CDM antenna port group includes general antenna ports;

[0659] Among them, the general antenna port is an antenna port used for both sensing and communication.

[0660] Optionally, the indication information for disabling OCC is used for at least one of the following:

[0661] Indicate that OCC mapping is not used within the same CDM antenna port group;

[0662] Implicitly indicate that the CDM antenna port group for sensing includes only one antenna port.

[0663] Optionally, the measurement configuration information includes at least one of the following:

[0664] Signal resource indication for measurement, number of signal resources for measurement, antenna port indication for measurement, CDM antenna port group indication for measurement, sensing measurement quantity, measurement result reporting configuration.

[0665] Optionally, the auxiliary information includes at least one of the following:

[0666] Number of data transmission layers, number of data transmission streams, channel rank number, transmit beam indication, receive beam indication, number of sensing targets, location information of sensing targets, direction information of sensing targets relative to the second device, location information of the first device, direction information of the first device relative to the second device.

[0667] Optionally, the auxiliary information is also used to implicitly indicate relevant information of at least one of the x antenna ports and the y antenna ports.

[0668] Optionally, the target signal sent through at least two antenna ports within the first CDM antenna port group includes at least one of the following:

[0669] Signals generated based on pseudo-random PN sequences;

[0670] Generate pseudo-random based on ZC sequences;

[0671] Signals generated based on chirp signals.

[0672] Optionally, at least one of the initial value, primitive polynomial, cyclic shift value, or truncation position of the PN sequence is associated with second information; or

[0673] At least one of the root sequence number or cyclic shift value of the ZC sequence is associated with second information; or

[0674] At least one of the frequency modulation slope or starting frequency of the chirp signal is associated with second information;

[0675] Wherein, the second information includes at least one of the following:

[0676] Perception area identifier, indication information on whether it is used for perception, perception service identifier, perception service type identifier, perception target identifier, label identifier associated with the perception target, number of perception targets, perception measurement quantity identifier, device identifier participating in the perception measurement, time domain resource information, frequency domain resource information, antenna port index, CDM antenna port group index, number of antenna ports, number of CDM antenna port groups, antenna index, maximum number of antennas, codeword index.

[0677] Optionally, the radio frequency unit 2101 is further configured to

[0678] Perform perception measurement on the target signal to obtain a perception measurement result.

[0679] The above device can reduce the complexity of perception measurement and communication.

[0680] It can be understood that the implementation processes of the various implementation manners mentioned in this embodiment can refer to the relevant descriptions of the above method for sending perception measurement results, and achieve the same or corresponding technical effects. To avoid repetition, they will not be elaborated here.

[0681] It should be noted that the above device can also implement Figure 12 the steps in the method shown, or can implement Figure 19 the methods executed by the various modules shown.

[0682] This embodiment of the present application further provides a device, including a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run programs or instructions to implement as Figure 12Steps of the method embodiments shown. This device embodiment corresponds to the above signal receiving method embodiments. Each implementation process and realization manner of the above method embodiments can be applied to this device embodiment and can achieve the same technical effects.

[0683] An embodiment of the present application further provides a device, including a processor and a communication interface. Among them, the communication interface is used to perform a receiving operation, and the receiving operation includes: receiving a target signal sent by a first device through y antenna ports; or, receiving the target signal sent by the first device through y antenna ports, and the first device receiving the target signal sent through x antenna ports; where the target signal sent through y antenna ports is used for communication, and y is an integer greater than or equal to 1; the target signal sent through x antenna ports is used for sensing, and x is an integer greater than or equal to 1.

[0684] Specifically, an embodiment of the present application further provides a device, and this device is a first device or a second device. As Figure 22 shown, the device 2200 includes: an antenna 2201, a radio frequency device 2202, a baseband device 2203, a processor 2204, and a memory 2205. The antenna 2201 is connected to the radio frequency device 2202. In the uplink direction, the radio frequency device 2202 receives information through the antenna 2201 and sends the received information to the baseband device 2203 for processing. In the downlink direction, the baseband device 2203 processes the information to be sent and sends it to the radio frequency device 2202. After the radio frequency device 2202 processes the received information, it is sent out through the antenna 2201.

[0685] In the above embodiments, the sensing measurement method can be implemented in the baseband device 2203, and the baseband device 2203 includes a baseband processor.

[0686] The baseband device 2203 may include, for example, at least one baseband board, and a plurality of chips are arranged on this baseband board. As Figure 22 shown, one of the chips is, for example, a baseband processor, which is connected to the memory 2205 through a bus interface to call the program in the memory 2205 and execute the device operations shown in the above method embodiments.

[0687] The device may further include a network interface 2206, and this interface is, for example, a Common Public Radio Interface (CPRI).

[0688] Specifically, the device 2200 of the embodiment of the present application further includes: instructions or programs stored on the memory 2205 and executable on the processor 2204. The processor 2204 calls the instructions or programs in the memory 2205 to execute Figure 19The methods executed by the modules shown achieve the same technical effects. To avoid repetition, they will not be elaborated here.

[0689] In this embodiment, the above device is taken as the second device for illustration.

[0690] Among them, the radio frequency device 2202 is used to perform a receiving operation, and the receiving operation includes:

[0691] Receiving the target signal sent by the first device through y antenna ports; or,

[0692] Receiving the target signal sent by the first device through y antenna ports, and the first device receiving the target signal sent through x antenna ports;

[0693] Among them, the target signal sent through y antenna ports is used for communication, and y is an integer greater than or equal to 1;

[0694] The target signal sent through x antenna ports is used for sensing, and x is an integer greater than or equal to 1.

[0695] Optionally, there are common antenna ports among the x antenna ports and the y antenna ports, and the target signal sent by the common antenna ports is used for sensing and communication.

[0696] Optionally, the value of x is associated with at least one of the following:

[0697] The number of sensing targets, the number of sensing beams.

[0698] Optionally, the value of y is associated with at least one of the following:

[0699] Channel rank, the number of devices supporting simultaneous communication, the number of transmission layers, system throughput.

[0700] Optionally, when x is greater than 1, the same receiving beam is used for the x antenna ports; or,

[0701] When x is greater than 1, the same spatial domain filter or spatial domain filter coefficient is used for the x antenna ports.

[0702] Optionally, the target signal sent through at least two antenna ports in the first CDM antenna port group has at least one of the following characteristics:

[0703] Generated based on different sequences;

[0704] Does not use orthogonal cover code OCC mapping;

[0705] Among them, the first CDM antenna port group includes the antenna ports among the x antenna ports.

[0706] Optionally, the second CDM antenna port group including the antenna port among the x antenna ports only includes one antenna port.

[0707] Optionally, there are antenna ports in the third CDM antenna port group among the x antenna ports, and there are antenna ports in the third CDM antenna port group among the y antenna ports.

[0708] Optionally, the radio frequency device 2202 is further configured to:

[0709] Receive the first information sent by the first device, where the first information includes at least one of the following:

[0710] Configuration information of the target signal, measurement configuration information, auxiliary information;

[0711] Wherein, the auxiliary information is used to assist at least one of sensing measurement and communication.

[0712] Optionally, the configuration information of the target signal includes at least one of the following:

[0713] Antenna port information, signal resource identifier, waveform, subcarrier spacing, guard interval, frequency domain start position, frequency domain resource length, frequency domain resource interval, time domain start position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction, quasi co-location (QCL) relationship, cyclic prefix information.

[0714] Optionally, the antenna port information includes at least one of the following:

[0715] Antenna port number information, antenna port index information, CDM antenna port group number information, CDM antenna port group index information, indication information for disabling orthogonal cover code (OCC).

[0716] Optionally, the antenna port number information includes at least one of the following:

[0717] The total number of antenna ports corresponding to the target signal, the number of antenna ports for sensing, the number of antenna ports for communication, the number of common antenna ports; or,

[0718] The antenna port index information includes at least one of the following:

[0719] Index information of all antenna ports corresponding to the target signal, index information of antenna ports for sensing, index information of antenna ports for communication, index information of common antenna ports; or,

[0720] The CDM antenna port group number information includes at least one of the following:

[0721] The total number of CDM antenna port groups corresponding to the target signal, the number of CDM antenna port groups for sensing, the number of CDM antenna port groups for communication, the general CDM antenna port group, where the general CDM antenna port group includes antenna ports for sensing and antenna ports for communication, or the general CDM antenna port group includes general antenna ports; or,

[0722] The CDM antenna port group index information includes at least one of the following:

[0723] The index information of all CDM antenna port groups corresponding to the target signal, the index information of CDM antenna port groups for sensing, the index information of CDM antenna port groups for communication, the index information of the general CDM antenna port group, where the general CDM antenna port group includes antenna ports for sensing and antenna ports for communication, or the general CDM antenna port group includes general antenna ports;

[0724] Wherein, the general antenna port is an antenna port used for both sensing and communication.

[0725] Optionally, the indication information for disabling OCC is used for at least one of the following:

[0726] Indicate that OCC mapping is not used within the same CDM antenna port group;

[0727] Implicitly indicate that the CDM antenna port group for sensing includes only one antenna port.

[0728] Optionally, the measurement configuration information includes at least one of the following:

[0729] Signal resource indication for measurement, number of signal resources for measurement, antenna port indication for measurement, CDM antenna port group indication for measurement, sensing measurement quantity, measurement result reporting configuration.

[0730] Optionally, the auxiliary information includes at least one of the following:

[0731] Number of data transmission layers, number of data transmission streams, channel rank number, transmit beam indication, receive beam indication, number of sensing targets, location information of sensing targets, direction information of sensing targets relative to the second device, location information of the first device, direction information of the first device relative to the second device.

[0732] Optionally, the auxiliary information is also used to implicitly indicate relevant information of at least one of the x antenna ports and the y antenna ports.

[0733] Optionally, the target signal transmitted through at least two antenna ports within the first CDM antenna port group includes at least one of the following:

[0734] Signals generated based on pseudo-random PN sequences;

[0735] Generate pseudo-random based on ZC sequences;

[0736] Signals generated based on chirp signals.

[0737] Optionally, at least one of the initial value, primitive polynomial, cyclic shift value, or truncation position of the PN sequence is associated with second information; or

[0738] At least one of the root sequence number or cyclic shift value of the ZC sequence is associated with second information; or

[0739] At least one of the frequency modulation slope or starting frequency of the chirp signal is associated with second information;

[0740] Wherein, the second information includes at least one of the following:

[0741] Perception area identifier, indication information on whether it is used for perception, perception service identifier, perception service type identifier, perception target identifier, label identifier associated with the perception target, number of perception targets, perception measurement quantity identifier, device identifier participating in perception measurement, time-domain resource information, frequency-domain resource information, antenna port index, CDM antenna port group index, number of antenna ports, number of CDM antenna port groups, antenna index, maximum number of antennas, codeword index.

[0742] The above device can reduce the complexity of perception measurement and communication.

[0743] It can be understood that the implementation processes of the various implementation manners mentioned in this embodiment can refer to the relevant descriptions of the above method embodiments and achieve the same or corresponding technical effects. To avoid repetition, they will not be elaborated here.

[0744] It should be noted that the above device can also implement Figure 5 the steps in the method shown, or can implement Figure 18 the methods executed by the various modules shown.

[0745] This application embodiment also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, it implements each process of the above communication perception method or signal reception method embodiment and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0746] Among them, the processor is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disks, or optical discs, etc. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0747] Another embodiment of the present application provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement each process of the above embodiments of the communication perception method or the signal reception method, and can achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0748] It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, system chip, chip system, or system-on-chip, etc.

[0749] Another embodiment of the present application provides a computer program / program product. The computer program / program product is stored in a storage medium. The computer program / program product is executed by at least one processor to implement each process of the above embodiments of the communication perception method or the signal reception method, and can achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0750] Another embodiment of the present application provides a wireless communication system, including: a first device and a second device. The first device can be used to execute the steps of the communication perception method provided in the embodiments of the present application, and the second device can be used to execute the steps of the signal reception method provided in the embodiments of the present application.

[0751] It should be noted that in this article, the term "including", "comprising", or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article, or device. Without more limitations, the element defined by the statement "including one..." does not exclude the existence of other identical elements in the process, method, article, or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed. It may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0752] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-described example methods can be implemented by means of computer software products plus the necessary general hardware platforms, and of course, they can also be implemented by hardware. The computer software products are stored in storage media (such as ROM, RAM, magnetic disks, optical disks, etc.) and include several instructions for causing a terminal or a network-side device to execute the methods described in various embodiments of the present application.

[0753] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms of embodiments without departing from the purpose of the present application and the scope protected by the claims. These embodiments are all within the protection scope of the present application.

Claims

1. A communication and sensing method, characterized in that, it includes: The first device sends a target signal through x antenna ports, and the target signal sent through the x antenna ports is used for sensing, where x is an integer greater than or equal to 1; The first device sends the target signal through y antenna ports, and the target signal sent through the y antenna ports is used for communication, where y is an integer greater than or equal to 1.

2. The method according to claim 1, characterized in that, There are common antenna ports among the x antenna ports and the y antenna ports, and the target signal sent by the common antenna ports is used for sensing and communication.

3. The method according to claim 1 or 2, characterized in that, The value of x is associated with at least one of the following: The number of sensing targets, the number of sensing beams.

4. The method according to any one of claims 1 to 3, characterized in that, The value of y is associated with at least one of the following: Channel rank, the number of devices supporting simultaneous communication, the number of transmission layers, system throughput.

5. The method according to any one of claims 1 to 4, characterized in that, When x is greater than 1, the x antenna ports use the same transmission beam; or, When x is greater than 1, the x antenna ports use the same spatial domain filter or spatial domain filtering coefficient.

6. The method according to any one of claims 1 to 5, characterized in that, When x is greater than 1, the x antenna ports belong to different code division multiplexing (CDM) antenna port groups; or, There are at least two antenna ports among the x antenna ports that belong to the same CDM antenna port group.

7. The method according to any one of claims 1 to 6, characterized in that, The target signal sent through at least two antenna ports in the first CDM antenna port group has at least one of the following characteristics: Generated based on different sequences; Does not use orthogonal cover code (OCC) mapping; Wherein, the first CDM antenna port group includes the antenna ports among the x antenna ports.

8. The method according to any one of claims 1 to 7, characterized in that, The second CDM antenna port group including the antenna ports among the x antenna ports only contains one antenna port.

9. The method according to any one of claims 1 to 8, characterized in that, There are antenna ports in the third CDM antenna port group among the x antenna ports, and there are antenna ports in the third CDM antenna port group among the y antenna ports.

10. The method according to any one of claims 1 to 9, characterized in that, The method further includes: The first device sends first information to the second device, where the first information includes at least one of the following: The configuration information of the target signal, measurement configuration information, auxiliary information; Wherein, the auxiliary information is used to assist at least one of sensing measurement and communication.

11. The method according to claim 10, characterized in that, The configuration information of the target signal includes at least one of the following: Antenna port information, signal resource identifier, signal usage, waveform, subcarrier spacing, guard interval, starting frequency-domain position, frequency-domain resource length, frequency-domain resource interval, starting time-domain position, time-domain resource length, time-domain resource interval, signal power, sequence information, signal direction, quasi-co-location (QCL) relationship, cyclic prefix information.

12. The method according to claim 11, wherein, the antenna port information includes at least one of the following: number of antenna ports information, antenna port index information, number of CDM antenna port groups information, CDM antenna port group index information, indication information for disabling orthogonal cover code (OCC).

13. The method according to claim 12, wherein, the number of antenna ports information includes at least one of the following: total number of antenna ports corresponding to the target signal, number of antenna ports for sensing, number of antenna ports for communication, general antenna port number; or, the antenna port index information includes at least one of the following: index information of all antenna ports corresponding to the target signal, index information of antenna ports for sensing, index information of antenna ports for communication, index information of general antenna ports; or, the number of CDM antenna port groups information includes at least one of the following: total number of CDM antenna port groups corresponding to the target signal, number of CDM antenna port groups for sensing, number of CDM antenna port groups for communication, general CDM antenna port group number, the general CDM antenna port group includes antenna ports for sensing and antenna ports for communication, or the general CDM antenna port group includes general antenna ports; or, the CDM antenna port group index information includes at least one of the following: index information of all CDM antenna port groups corresponding to the target signal, index information of CDM antenna port groups for sensing, index information of CDM antenna port groups for communication, index information of general CDM antenna port groups, the general CDM antenna port group includes antenna ports for sensing and antenna ports for communication, or the general CDM antenna port group includes general antenna ports; wherein, the general antenna port is an antenna port used for both sensing and communication.

14. The method according to claim 13, wherein, the indication information for disabling OCC is used for at least one of the following: indicating that OCC mapping is not adopted within the same CDM antenna port group; implicitly indicating that the CDM antenna port group for sensing only includes one antenna port.

15. The method according to any one of claims 10 to 14, wherein, the measurement configuration information includes at least one of the following: measurement signal resource indication, number of measurement signal resources, measurement antenna port indication, measurement CDM antenna port group indication, sensing measurement quantity, measurement result reporting configuration.

16. The method according to any one of claims 10 to 15, wherein, the auxiliary information includes at least one of the following: The number of data transmission layers, the number of data transmission streams, the channel rank, the transmit beam indication, the receive beam indication, the number of sensing targets, the location information of the sensing targets, the direction information of the sensing targets relative to the second device, the location information of the first device, and the direction information of the first device relative to the second device.

17. The method according to any one of claims 10 to 16, wherein, the auxiliary information is further used to implicitly indicate the relevant information of at least one of the x antenna ports and the y antenna ports.

18. The method according to any one of claims 1 to 17, wherein, the target signal transmitted through at least two antenna ports within the first CDM antenna port group includes at least one of the following: a signal generated based on a pseudo-random PN sequence; generating pseudo-random based on a ZC sequence; a signal generated based on a chirp Chirp signal; wherein at least one of the initial value, primitive polynomial, cyclic shift value, or truncation position of the PN sequence is associated with the second information; or at least one of the root sequence number or cyclic shift value of the ZC sequence is associated with the second information; or at least one of the frequency modulation slope or starting frequency of the Chirp signal is associated with the second information; wherein the second information includes at least one of the following: a sensing area identifier, an indication information of whether it is used for sensing, a sensing service identifier, a sensing service type identifier, a sensing target identifier, a label identifier associated with the sensing target, the number of sensing targets, a sensing measurement quantity identifier, an identifier of the device participating in the sensing measurement, time domain resource information, frequency domain resource information, an antenna port index, a CDM antenna port group index, the number of antenna ports, the number of CDM antenna port groups, an antenna index, the maximum number of antennas, and a codeword index.

19. The method according to any one of claims 1 to 18, wherein, the method further includes: the first device performs sensing measurement on the target signal to obtain a sensing measurement result.

20. A signal receiving method, wherein, it includes: the second device performs a receiving operation, and the receiving operation includes: receiving a target signal transmitted by the first device through y antenna ports; or, receiving the target signal transmitted by the first device through y antenna ports, and the first device receives the target signal transmitted through x antenna ports; wherein the target signal transmitted through the y antenna ports is used for communication, and y is an integer greater than or equal to 1; the target signal transmitted through the x antenna ports is used for sensing, and x is an integer greater than or equal to 1.

21. The method according to claim 20, wherein, when x is greater than 1, the same receive beam is adopted for the x antenna ports; or, when x is greater than 1, the same spatial domain filter or spatial domain filter coefficient is adopted for the x antenna ports.

22. The method according to claim 20 or 21, wherein, the method further includes: the second device receives the first information sent by the first device, and the first information includes at least one of the following: Configuration information of the target signal, measurement configuration information, and auxiliary information; Among them, the auxiliary information is used to assist at least one of sensing measurement and communication.

23. A communication sensing device, characterized in that, it includes: A first transmission module, configured to transmit a target signal through x antenna ports, where the target signal transmitted through the x antenna ports is used for sensing, and x is an integer greater than or equal to 1; A second transmission module, configured to transmit the target signal through y antenna ports, where the target signal transmitted through the y antenna ports is used for communication, and y is an integer greater than or equal to 1.

24. The device according to claim 23, characterized in that, when x>1, the x antenna ports use the same transmission beam; or, when x>1, the x antenna ports use the same spatial domain filter or spatial domain filter coefficient.

25. The device according to claim 23 or 24, characterized in that, The target signal transmitted through at least two antenna ports in the first CDM antenna port group has at least one of the following characteristics: Generated based on different sequences; Do not use orthogonal cover code OCC mapping; Among them, the first CDM antenna port group includes the antenna ports among the x antenna ports.

26. The device according to any one of claims 23 to 25, characterized in that, The device further includes: A third transmission module, configured to send first information to a second device, where the first information includes at least one of the following: Configuration information of the target signal, measurement configuration information, and auxiliary information; Among them, the auxiliary information is used to assist at least one of sensing measurement and communication.

27. The device according to any one of claims 23 to 26, characterized in that, The device further includes: A measurement module, configured to perform sensing measurement on the target signal to obtain a sensing measurement result.

28. A signal receiving device, characterized in that, it includes: An execution module, configured to perform a receiving operation, and the receiving operation includes: Receiving a target signal sent by a first device through y antenna ports; or, Receiving the target signal sent by the first device through y antenna ports, and the first device receiving the target signal sent through x antenna ports; Among them, the target signal transmitted through the y antenna ports is used for communication, and y is an integer greater than or equal to 1; The target signal transmitted through the x antenna ports is used for sensing, and x is an integer greater than or equal to 1.

29. The device according to claim 28, characterized in that, when x>1, the same receiving beam is used for the x antenna ports; or, when x>1, the same spatial domain filter or spatial domain filter coefficient is used for the x antenna ports.

30. The device according to claim 28 or 29, characterized in that, The device further includes: A receiving module, configured to receive the first information sent by the first device, where the first information includes at least one of the following: Configuration information of the target signal, measurement configuration information, and auxiliary information; Wherein, the auxiliary information is used to assist at least one of sensing measurement and communication.

31. A device, characterized in that, comprising a processor and a memory, the memory storing programs or instructions that can run on the processor, and when the programs or instructions are executed by the processor, the steps of the communication sensing method described in any one of claims 1 to 19 are implemented, or when the programs or instructions are executed by the processor, the steps of the communication sensing method described in any one of claims 20 to 22 are implemented.

32. A readable storage medium, characterized in that, the readable storage medium stores programs or instructions, and when the programs or instructions are executed by a processor, the steps of the communication sensing method described in any one of claims 1 to 19 are implemented, or the steps of the communication sensing method described in any one of claims 20 to 22 are implemented.

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