Communication and sensing method and apparatus, signal receiving method and apparatus, and device

Abstract

The present application belongs to the technical field of communications. Disclosed are a communication and sensing method and apparatus, a signal receiving method and apparatus, and a device. The communication and sensing method in the embodiments of the present application comprises: a first device transmitting a target signal by means of x antenna ports, wherein the target signal transmitted by means of the x antenna ports is configured for sensing, and x is an integer greater than or equal to 1; and the first device transmitting the target signal by means of y antenna ports, wherein the target signal transmitted by means of the y antenna ports is configured for communication, and y is an integer greater than or equal to 1.

Description

Communication sensing method, signal receiving method, device and equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on December 1, 2023, with application number 202311643309.8 and invention name “Communication perception method, signal receiving method, device and equipment”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application belongs to the field of communication technology, and specifically relates to a communication perception method, a signal receiving method, an apparatus and equipment. Background Art

[0004] Some communication systems support perception measurement. In some related technologies, the signals used for perception and the signals used for communication are configured independently of each other, that is, perception measurement and communication use different types of signals. In this way, during the perception measurement and communication process, the equipment needs to process multiple signals, resulting in high complexity of perception measurement and communication. Summary of the Invention

[0005] The embodiments of the present application provide a communication perception method, a signal receiving method, an apparatus, and a device, which can solve the problem of high complexity of perception measurement and communication caused by the need for the device to process multiple signals during the perception measurement and communication process.

[0006] In a first aspect, a communication perception method is provided, comprising:

[0007] The first device sends a target signal through x antenna ports, where the target signal sent through the x antenna ports is used for sensing, where x is an integer greater than or equal to 1;

[0008] The first device sends the target signal through y 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.

[0009] In a second aspect, a signal receiving method is provided, comprising:

[0010] The second device performs a receiving operation, where the receiving operation includes:

[0011] receiving a target signal sent by the first device through y antenna ports; or,

[0012] receiving a target signal sent by the first device through y antenna ports, and receiving by the first device the target signal sent through x antenna ports;

[0013] The target signal sent through y antenna ports is used for communication, and y is an integer greater than or equal to 1;

[0014] The target signal sent through x antenna ports is used for perception, where x is an integer greater than or equal to 1.

[0015] In a third aspect, a communication sensing device is provided, comprising:

[0016] A first sending module, configured to send a target signal through x antenna ports, where the target signal sent through the x antenna ports is used for sensing, where x is an integer greater than or equal to 1;

[0017] The second sending module is configured to send the target signal through y 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.

[0018] In a fourth aspect, a signal receiving device is provided, comprising:

[0019] The execution module is configured to execute a receiving operation, wherein the receiving operation includes:

[0020] receiving a target signal sent by the first device through y antenna ports; or,

[0021] receiving a target signal sent by the first device through y antenna ports, and receiving by the first device the target signal sent through x antenna ports;

[0022] The target signal sent through y antenna ports is used for communication, and y is an integer greater than or equal to 1;

[0023] The target signal sent through x antenna ports is used for perception, where x is an integer greater than or equal to 1.

[0024] In a fifth aspect, a device is provided, which includes a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the communication perception method provided in the embodiment of the present application are implemented.

[0025] In the sixth aspect, a device is provided, including a processor and a communication interface, wherein the communication interface is used to send a target signal through x antenna ports, the target signal sent through x antenna ports is used for perception, and x is an integer greater than or equal to 1; and the target signal is sent through y antenna ports, the target signal sent through y antenna ports is used for communication, and y is an integer greater than or equal to 1.

[0026] In the seventh aspect, a device is provided, which includes a processor and a memory, wherein the memory stores a program or instruction that can be 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 embodiment of the present application are implemented.

[0027] In the eighth aspect, a device is provided, including a processor and a communication interface, wherein 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 a target signal sent by the first device through y antenna ports, and the first device receiving the target signal sent through x antenna ports; wherein the target signal sent through y antenna ports is used for communication, y is an integer greater than or equal to 1; the target signal sent through x antenna ports is used for perception, and x is an integer greater than or equal to 1.

[0028] In the ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is 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.

[0029] In the tenth aspect, a wireless communication system is provided, including: a first device and a second device, wherein the first device can be used to execute the steps of the communication perception method provided in the embodiment of the present application, and the second device can be used to execute the steps of the signal receiving method provided in the embodiment of the present application.

[0030] In the eleventh aspect, a chip is provided, which includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the communication perception method provided in the embodiment of the present application, or to implement the signal receiving method provided in the embodiment of the present application.

[0031] In the twelfth aspect, a computer program / program product is provided, which is stored in a storage medium, and is executed by at least one processor to implement the steps of the communication perception method provided in the embodiment of the present application, and the computer program / program product is executed by at least one processor to implement the steps of the signal reception method provided in the embodiment of the present application.

[0032] In an embodiment of the present application, a first device transmits 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 a first device transmits 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. In this way, by transmitting the target signal 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. Thus, only one type of signal needs to be transmitted during the sensing measurement and communication process, i.e., 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

[0033] FIG1 is a block diagram of a wireless communication system to which embodiments of the present application may be applied;

[0034] FIG2 is a schematic diagram of a perception measurement scenario provided by an embodiment of the present application;

[0035] FIG3 is a schematic diagram of a bistatic radar architecture provided in an embodiment of the present application;

[0036] FIG4 is a schematic diagram of another bistatic radar architecture provided in an embodiment of the present application;

[0037] FIG5 is a flow chart of a communication perception method provided in an embodiment of the present application;

[0038] 6 to 11 are schematic diagrams of resource mapping provided in embodiments of the present application;

[0039] FIG12 is a flowchart of a signal receiving method provided in an embodiment of the present application;

[0040] FIG13 is a schematic diagram of a perception measurement provided in an embodiment of the present application;

[0041] FIG14 is a schematic diagram of another perception measurement provided in an embodiment of the present application;

[0042] FIG15 is a schematic diagram of a region division provided in an embodiment of the present application;

[0043] FIG16 is a schematic diagram of another area division provided in an embodiment of the present application;

[0044] FIG17 is a schematic diagram of a signal waveform provided in an embodiment of the present application;

[0045] FIG18 is a structural diagram of a communication sensing device provided in an embodiment of the present application;

[0046] FIG19 is a structural diagram of a signal receiving device provided in an embodiment of the present application;

[0047] FIG20 is a structural diagram of a communication device provided in an embodiment of the present application;

[0048] FIG21 is a structural diagram of another communication device provided in an embodiment of the present application;

[0049] Figure 22 is a structural diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0050] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0051] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, 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 generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0052] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0053] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but 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 the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and the NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as the 6th generation (6G) system. th Generation, 6G) communication system.

[0054] FIG1 is a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (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 (Wearable Device), an aircraft (Flight Vehicle), a vehicle-mounted device (VUE), a ship-mounted device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), an ATM, or a self-service machine, or other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, vehicle-mounted controller, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip or vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application.

[0055] The network-side device 12 may include an access network device or a core network device, wherein 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. Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the 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 (homeevolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the relevant field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0056] The core network equipment may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (MME), access mobility management function (AMF), session management function (SMF), user plane function (UPF), policy control function (PCF), policy and charging rules function unit (PCRF), edge application service discovery function (EASDF), unified data management (UDM), unified data repository (UDR), home subscriber server (HSS), centralized network configuration (CNC), network storage function (NRF), network exposure function (NEF), local NEF (L-NEF), binding support function (BSF), etc. Function, BSF), application function (AF), location management function (LMF), gateway mobile location center (GMLC), network data analysis function (NWDAF), etc. It should be noted that in the embodiment of the present application, only the core network device in the NR system is taken as an example to introduce, and the specific type of the core network device is not limited.

[0057] In some embodiments, network-side devices and terminals may have perception capabilities in addition to communication capabilities. Perception capabilities refer to one or more devices with the ability to sense the position, distance, speed, and other information of a target object through the transmission and reception of wireless signals, or to detect, track, identify, and image a target object, event, or environment. Some perception functions and application scenarios are shown in Table 1:

[0058] Table 1

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

[0060] In addition, the embodiments of the present application can be applied to the communication and perception integration scenario, where communication and perception integration refers to the integrated design of communication and perception functions through spectrum sharing and hardware sharing in the same system. While transmitting information, the system can perceive information such as direction, distance, speed, and detect, track, and identify target devices or events. The communication system and the perception system complement each other to achieve overall performance improvement and bring a better service experience.

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

[0062] In the embodiment of the present application, depending on the difference between the sending node and the receiving node of the perception signal, the six types of perception links shown in Figure 2 may be included but not limited to. It should be noted that each perception link in Figure 2 is illustrated by taking a sending node and a receiving node as an example. In the actual system, different perception links can be selected according to different perception needs. Each perception link may have one or more sending nodes and one receiving node, and the actual perception system may include a variety of different perception links. In addition, the perception targets in Figure 2 take people and cars as examples, and assuming that people and cars do not carry or install signal receiving / transmitting equipment, the perception targets of the actual scene will be richer.

[0063] Sensing link 1: The base station transmits and receives sensing signals autonomously. In this mode, the base station sends sensing signals and obtains sensing results by receiving the echo of the sensing signals.

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

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

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

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

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

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

[0070] Table 2:

[0071] Among them, the demodulation reference signal (DMRS) may be distributed non-uniformly and non-continuously in the time-frequency domain due to the randomness of service arrival and the uncertainty of scheduled time-frequency resources.

[0072] 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 occupied time-frequency domain resources can be flexibly allocated by the system according to the purpose.

[0073] The above-mentioned 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 sent. In addition, the period of the synchronization signal can be configured to 5ms, 10ms, 20ms, 40ms, 80ms or 160ms. The time domain interval is larger and the speed measurement range is smaller.

[0074] Phase-tracking reference signal (PT-RS) is sparsely distributed in the frequency domain and densely distributed in the time domain, making it suitable for speed measurement and Doppler-related sensing applications.

[0075] The Positioning Reference Signal (PRS) adopts a comb structure in the frequency domain and is mapped in an interleaved manner in the time domain. It can adapt to different perception resolution requirements through different time-frequency domain pattern configurations and can be used for high-precision perception.

[0076] The data signal generally occupies more time-frequency resources than the reference signal and can serve as a supplement to the channel information obtained through the reference signal.

[0077] In some embodiments, radar systems can be categorized as monostatic and bistatic / multistatic, depending on whether the transmitter and receiver are separated. Bistatic radars generally require a significant distance between the transmitting and receiving antennas, comparable to the radar's operating range. Exostatic radars are a special case of bistatic radars. They utilize relevant electromagnetic wave detection theory and signal processing techniques to acquire non-cooperative electromagnetic signals emitted by a third party (e.g., a communication base station) to detect, locate, track, and identify targets. These are also known as passive radars, bistatic / multistatic passive radars, passive radars, non-cooperative illuminating source radars, or non-cooperative passive detection systems.

[0078] The bistatic radar perception result calculation can be based on the reference channel (direct path) signal and the monitoring channel (reflection path) signal. The typical bistatic radar architecture diagrams are shown in Figures 3 and 4. Figures 3 and 4 correspond to two-dimensional space and three-dimensional space respectively. T is the distance from the signal transmitter (Tx) to the target, R R is the distance from the signal receiving end (Tx) to the target, L is the baseline distance, θ T is the angle of the target relative to the signal transmitter, θ R (θ R1 ,θ R2 ) is the angle of the target relative to the signal receiving end, and β is the bistatic angle.

[0079] In some embodiments, for common range, Doppler, or speed measurements in perception measurements, measurement ambiguity may occur when the signal resource configuration does not meet the requirements. For example, for single-base radar perception, the relationship between the maximum unambiguous range, Doppler, or speed and the signal resource configuration is at least one of the following:

[0080] If the speed direction is considered, the time domain resource interval satisfies ΔT≤1 / (2|f dmax |) or ΔT≤c / (4f c |v max|); If the time domain resource interval in the direction of speed is not considered and satisfies ΔT≤1 / f dmax Or ΔT≤c / (2f c v max ), where f dmax is the maximum unambiguous Doppler, v max is the maximum unambiguous velocity, f c is the carrier frequency, c is the speed of light;

[0081] Frequency domain resource spacing satisfies Δf≤1 / τ max Or Δf≤c / (2R max ), where τ max is the maximum unambiguous delay, R max is the maximum unambiguous distance.

[0082] Below, in combination with the accompanying drawings, a communication perception method, signal receiving method, device and equipment provided by the embodiments of the present application are described in detail through some embodiments and their application scenarios.

[0083] Please refer to FIG5 , which is a flowchart of a communication perception method provided in an embodiment of the present application. As shown in FIG5 , the method includes the following steps:

[0084] Step 501: A first device sends a target signal through x antenna ports, where the target signal sent through the x antenna ports is used for perception, and x is an integer greater than or equal to 1.

[0085] The first device mentioned above may be a terminal or a network side device.

[0086] The target signal may 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 ZC (Zadoff-Chu) sequence, etc., or a signal generated based on a chirp or frequency modulated continuous wave (FMCW) signal.

[0087] The target signal sent through the x antenna ports may be used for the first device to perform perception measurement, or may be used for the second device to perform perception measurement.

[0088] Step 502: The first device sends the target signal through y 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.

[0089] The target signal sent through the y antenna ports is used for communication, which means that the target signal sent through the y antenna ports communicates with the second device.

[0090] It should be noted that in the embodiment of the present application, the execution order of step 501 and step 502 is not limited. As shown in Figure 5, step 501 can be executed first and then step 502, or step 501 and step 502 can be executed at the same time, or step 502 can be executed first and then step 501.

[0091] The target signals sent by the x antenna ports and the y antenna ports are signals of the same type, such as reference signals of the same type, dedicated perception signals of the same type, and data signals of the same type.

[0092] In an embodiment of the present application, by sending the target signal through multiple antenna ports, the target signal sent through x antenna ports is used for perception, and the target signal sent through y antenna ports is used for communication, thereby achieving information transmission to the second device in the process of sending the signal for perception measurement, thereby improving the communication performance of the device.

[0093] In addition, since only the target signal needs to be sent during the sensing measurement and communication process, only the above-mentioned target signal needs to be configured, thereby reducing the overhead of signal configuration.

[0094] As an optional implementation manner, the x antenna ports and the y antenna ports have a common antenna port, and the target signal sent by the common antenna port is used for perception and communication.

[0095] The x antenna ports and the y antenna ports having a common antenna port means that the x antenna ports and the y antenna ports have the same antenna port, and the antenna port is the common antenna port. For example, if the x antenna ports and the y antenna ports both have antenna port A, and the target signal transmitted by antenna port A is used for perception and communication, then the x antenna ports and the y antenna ports may have the same antenna port, i.e., an antenna port used for both perception and communication.

[0096] In the above optional implementation, since the target signal sent by the common antenna port is used for perception and communication, the target signal sent by the same antenna port can be used for perception and communication, thereby reducing the signal transmission overhead.

[0097] As an optional implementation manner, the value of x is associated with at least one of the following:

[0098] Number of perceived targets and number of perception beams.

[0099] The association of the value of x with the at least one item can be understood as meaning that the number of antenna ports of the x antenna ports is determined based on at least one of the number of sensing targets or the number of sensing beams. For example, the value of x is determined based on a mapping relationship between the number of sensing targets and the number of antenna ports used for sensing, or based on a mapping relationship between the number of sensing beams and the number of antenna ports used for sensing, or based on a mapping relationship among the number of sensing targets, the number of sensing beams, and the number of antenna ports used for sensing.

[0100] In the above optional implementation, since the value of x is associated with the number of perception targets or the number of perception beams, the number of antenna ports used for perception can match the number of perception targets or the number of perception beams to improve perception performance.

[0101] As an optional implementation manner, the value of y is associated with at least one of the following:

[0102] Channel rank number, number of devices supporting simultaneous communication, number of transport layers, and system throughput.

[0103] The association of the value of y with the at least one item can be understood as indicating that the number of antenna ports (y) is determined based on at least one of the channel rank, the number of devices supporting simultaneous communication, the number of transmission layers, or the system throughput. For example, the value of y is determined based on a mapping relationship between the at least one item and the number of antenna ports used for communication.

[0104] In one of the above optional implementations, since the value of y is associated with at least one of the channel rank number, the number of devices supporting simultaneous communication, the number of transmission layers or the system throughput, the number of antenna ports used for communication can be matched with at least one of the channel rank number, the number of devices supporting simultaneous communication, the number of transmission layers or the system throughput to improve communication performance.

[0105] In some implementations, the values ​​of x and y may be determined by protocol agreement or network configuration.

[0106] As an optional implementation manner, when x is greater than 1, the x antenna ports use the same transmit beam; or,

[0107] When x is greater than 1, the x antenna ports use the same spatial filter or spatial filter coefficient.

[0108] In this embodiment, because the x antenna ports use the same transmit beam, spatial filter, or spatial filter coefficient, the channels traversed by the signals transmitted by the x antenna ports are identical or similar, allowing the first device or the second device to jointly process the signals from the x antenna ports to obtain a perception measurement result, thereby improving perception 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 a two-dimensional Fourier transform.

[0109] As an optional implementation manner, when x is greater than 1, the x antenna ports belong to different code division multiplexing (CDM) antenna port groups; or,

[0110] Among the x antenna ports, at least two antenna ports belong to the same CDM antenna port group.

[0111] In the embodiment of the present application, the CDM antenna port group may also be referred to as a CDM port group or a CDM group.

[0112] The x antenna ports belonging to different CDM antenna port groups means that the x antenna ports belong to different CDM antenna port groups. In this case, the signal resources of the x antenna ports are time division multiplexing (TDM) or frequency division multiplexing (FDM) instead of CDM. In this way, the signals of the x antenna ports occupy different time domains or frequency domain resources. When the perception measurement results are obtained by joint processing at the receiving end, the perception measurement performance can be effectively improved.

[0113] At least two of the x antenna ports belong to the same CDM antenna port group. Alternatively, the x antenna ports may belong to the same CDM antenna port group, or some of the x antenna ports may belong to the same CDM antenna port group, to implement CDM of the signals used for sensing and improve resource utilization. For example, different antenna ports among the x antenna ports that are not used for joint measurement at the receiving end may belong to the same CDM antenna port group, and these antenna ports may use different transmit beams to transmit target signals.

[0114] As an optional implementation manner, 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:

[0115] Based on different sequence generation;

[0116] Orthogonal Cover Code (OCC) mapping is not used;

[0117] The first CDM antenna port group includes antenna ports among the x antenna ports.

[0118] The first CDM antenna port group may be understood as a CDM antenna port group including antenna ports used for sensing, that is, a CDM antenna port group including antenna ports among the x antenna ports is the first CDM antenna port group.

[0119] The generation based on different sequences means that the target signal sent by each antenna port in the first CDM antenna port group is generated based on a different sequence, so that the target signals are not generated based on the same sequence.

[0120] The target signals sent by at least two antenna ports in the first CDM antenna port group may be generated based on different sequences and may not use OCC mapping, or the target signals sent by at least two antenna ports in the first CDM antenna port group may be generated based on different sequences, or the target signals sent by at least two antenna ports in the first CDM antenna port group may not use OCC mapping. For example, when a CDM antenna port group includes antenna ports for perception, the target signals sent 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 OCC mapped, so that these target signals will have phase differences on adjacent resources, so that the receiving end of the perception measurement can use the phase difference information of these signals to perform perception measurement, thereby improving perception performance. In addition, the different sequences may have good cross-correlation characteristics, so that the target signals sent by different antenna ports have high mutual characteristics, thereby reducing the complexity of signal analysis at the receiving end of the target signal.

[0121] In one of the above optional embodiments, since the target signal sent 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 in adjacent resource elements (RE) can be perceived and measured by the receiving end based on the phase difference to improve the perception performance.

[0122] In some implementations, the signal resources corresponding to the first CDM antenna port group may occupy continuous time-frequency domain resources.

[0123] 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.

[0124] The second CDM antenna port group includes only one of the x antenna ports, and no other antenna ports are included in the CDM antenna port group. Because only one antenna port is included for perception, all time-frequency domain resources in the CDM antenna port group are allocated to that antenna port. The receiving end can obtain channel information on more time-frequency resources based on measurements of target signals transmitted by that antenna port, thereby improving perception performance.

[0125] As an optional implementation manner, the x antenna ports include antenna ports in a third CDM antenna port group, and the y antenna ports include antenna ports in the third CDM antenna port group.

[0126] The above-mentioned third CDM antenna port group includes antenna ports among the x antenna ports and also includes antenna ports among the above-mentioned y antenna ports, that is, the antenna ports used for perception and the antenna ports used 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.

[0127] As an optional implementation, the method further includes:

[0128] The first device sends first information to the second device, where the first information includes at least one of the following:

[0129] Configuration information, measurement configuration information, and auxiliary information of the target signal;

[0130] The auxiliary information is used to assist at least one of perception measurement and communication.

[0131] The configuration information of the target signal may be configuration information such as resources, format or sequence of the target signal. The configuration information of the target signal may enable the second device to receive the target signal more reliably, thereby improving the reliability of target signal transmission.

[0132] Optionally, the configuration information of the target signal includes at least one of the following:

[0133] Antenna port information, signal resource identifier, signal usage, waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction, Quasi Co-Location (QCL), and cyclic prefix information.

[0134] The antenna port information may be related information of the x antenna ports or the y antenna ports.

[0135] In some implementations, the antenna port information includes at least one of the following:

[0136] Antenna port number information, antenna port index information, CDM antenna port group number information, CDM antenna port group index information, and OCC disabling indication information.

[0137] The information on the number of antenna ports may be information such as the x antenna ports or the y antenna ports. For example, the information on the number of antenna ports includes at least one of the following:

[0138] The total number of antenna ports corresponding to the target signal, the number of antenna ports used for perception, the number of antenna ports used for communication, and the number of general antenna ports.

[0139] The universal antenna port is an antenna port used for both perception and communication.

[0140] The total number of antenna ports corresponding to the above-mentioned target signal can be the total number of antenna ports N, the number of antenna ports used for perception is x, the number of antenna ports used for communication is y, and the above-mentioned general antenna ports are antenna ports used for both perception and communication, such as the number of general antenna ports z.

[0141] The above-mentioned information on the number of antenna ports enables the receiving end to more effectively identify signals used for perception or communication.

[0142] The antenna port index information may include at least one of the following:

[0143] The index information of all antenna ports corresponding to the target signal, the index information of the antenna ports used for perception, the index information of the antenna ports used for communication, and the index information of the general antenna ports.

[0144] The above-mentioned index information may be an index list, such as an index list of all antenna ports, an index list of antenna ports used for perception, an index list of antenna ports used for communication, and an index list of general antenna ports.

[0145] The antenna port index information can enable the receiving end to more effectively identify signals used for perception or communication.

[0146] The CDM antenna port group number information may include at least one of the following:

[0147] The total number of CDM antenna port groups corresponding to the target signal, the number of CDM antenna port groups used for perception, the number of CDM antenna port groups used for communication, and the number of general CDM antenna port groups, wherein the general CDM antenna port group includes antenna ports for perception and antenna ports for communication, or includes a general CDM antenna port group including a general antenna port.

[0148] The CDM antenna port group index information may include at least one of the following:

[0149] The index information of all CDM antenna port groups corresponding to the target signal, the index information of the CDM antenna port group used for perception, the index information of the CDM antenna port group used for communication, and the index information of the general CDM antenna port group, wherein the general CDM antenna port group includes antenna ports for perception and antenna ports for communication, or includes a general CDM antenna port group including a general antenna port.

[0150] The above-mentioned CDM antenna port group number information or CDM antenna port group index information can enable the receiving end to more effectively identify the CDM antenna port group where the antenna port used for perception or communication is located.

[0151] The above-mentioned indication information of disabling OCC is used to indicate that the target signal does not adopt OCC mapping. For example, the above-mentioned indication information of disabling OCC is used for at least one of the following:

[0152] Indicates that OCC mapping is not used within the same CDM antenna port group;

[0153] It is implicitly indicated that the CDM antenna port group used for sensing includes only one antenna port.

[0154] This can indicate that different antenna ports in the same CDM antenna port group use different sequences to generate transmission signals, or each CDM antenna port group contains only a single antenna port, or a designated CDM antenna port group (CDM antenna port group used for perception) contains only a single antenna port.

[0155] In some embodiments, the above-mentioned indication information for disabling OCC can be configured as a whole, indicating that all CDM antenna port groups do not adopt OCC mapping, or it can be configured separately for each CDM antenna port group, for example, the CDM antenna port group used only for perception does not adopt OCC mapping, or the CDM antenna port group that includes the perception antenna port by default does not adopt OCC mapping, or only supports a single antenna port and does not require explicit indication.

[0156] The above-mentioned indication information of disabling OCC can realize that the CDM antenna port group does not adopt OCC mapping, so that the phase difference of the target signal in adjacent REs can be perceived and measured by the receiving end based on the phase difference, thereby improving the perception performance.

[0157] The above signal resource identifier is used to distinguish different signal resource configurations;

[0158] The signal usage indicates whether the target signal is used for communication (e.g., channel measurement, channel estimation, synchronization, carrying data information, etc.), a signal used for sensing, or a signal used for both communication and sensing. Specifically, it may also indicate which sensing service the signal is used for, or which type of sensing service the signal is used for.

[0159] The waveform may be OFDM, single-carrier frequency-division multiple access (SC-FDMA), orthogonal time-frequency space (OTFS), frequency modulated continuous wave (FMCW), or a pulse signal;

[0160] The above subcarrier spacing may be the subcarrier spacing of an OFDM system, for example, 30 kHz.

[0161] The guard interval can be the time interval from the moment the signal ends to the moment 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 / (2R max ) is calculated, R max is the maximum perception distance (belonging to the perception demand information), such as for the self-transmitted and self-received perception signal, R max Represents the maximum distance between the perceived signal transmission and reception point and the signal reflection point; in some cases, the OFDM signal cyclic prefix (CP) can serve as the minimum guard interval, and c is the speed of light.

[0162] The above-mentioned frequency domain starting position may be a starting frequency point, or a starting resource element (RE) or resource block (RB) index.

[0163] The frequency domain resource length may be a frequency domain bandwidth, which is inversely proportional to the distance resolution. The frequency domain bandwidth of each signal is B≥c / (2ΔR), where c is the speed of light and ΔR is the distance resolution.

[0164] The frequency domain resource spacing represents the spacing between adjacent signal frequency domain resource units and can be expressed as the number of REs or RBs, or as a density value (Density). For example, Density = 1 indicates that one RE in each RB is used to carry the signal. The frequency domain resource spacing is inversely proportional to the maximum unambiguous distance / delay. For OFDM systems, when subcarriers are mapped continuously, the frequency domain spacing is equal to the subcarrier spacing.

[0165] The above-mentioned time domain starting position can be a starting time point, or a starting symbol, time slot, or frame index.

[0166] The time domain resource length may be a burst duration, and the time domain resource length is inversely proportional to the Doppler resolution.

[0167] The time domain resource interval may be a time interval between two adjacent signal resource units, and the time domain resource interval is associated with a maximum unambiguous Doppler frequency shift or a maximum unambiguous speed.

[0168] The above-mentioned time domain resource characteristics may be periodic transmission, semi-persistent transmission or aperiodic transmission.

[0169] The above signal power may be an interval power value, for example, a value is taken every 2dBm from -20dBm to 23dBm.

[0170] The above sequence information may include sequence type information (such as ZC sequence, PN sequence, etc.), sequence generation method or sequence length, etc.

[0171] The above-mentioned signal direction may be angle information or beam information of signal transmission.

[0172] The above-mentioned QCL relationship may indicate that the above-mentioned signal includes multiple resources, each resource is associated with a synchronization signal block (Synchronization Signal Block, SSB) QCL, and the QCL includes type A, type B, type C or type D.

[0173] The above-mentioned cyclic prefix (CP) information may include a CP type or a CP length, etc., wherein the CP type may include a normal cyclic prefix (NCP), an extended cyclic prefix (ECP) or a newly designed perception measurement-specific CP, etc.

[0174] The target signal can be flexibly configured through the configuration information of the above target signal so that the target signal can more easily meet the perception requirements.

[0175] It should be noted that, in the embodiment of the present application, one or more items included in the configuration information of the above-mentioned target signal may also be agreed upon by the protocol or pre-configured, and this is not limited to this.

[0176] The measurement configuration information is used to indicate relevant configuration information of the perception measurement or communication measurement, so that the second device can better perform the perception measurement or communication measurement. For example, the measurement configuration information includes at least one of the following:

[0177] Measured signal resource indication, measured signal resource number, measured antenna port indication, measured CDM antenna port group indication, and measurement result reporting configuration.

[0178] The measured signal resource indication may indicate the signal resource measured by the second device. For example, the measured signal resource indication includes an identifier of the measurement signal. The second device determines the signal configuration information of the measurement signal through the identifier, and further determines the measured signal resource.

[0179] The antenna port indication for the measurement may include the number of antenna ports or antenna port indexes for the perception measurement. For example, by indicating multiple antenna port indexes, perception measurement based on x antenna port signals is performed. In this case, it can be assumed that the channels experienced by the signals of the x antenna ports are the same or similar, and a joint measurement can be performed to obtain a perception measurement result, that is, the measurement of one or more perception measurement quantities is performed based on the signals of the multiple antenna ports.

[0180] The CDM antenna port group indication of the above measurement may include at least one of the number of CDM antenna port groups or the CDM antenna port group index of the signal for the perception measurement. For example, by indicating multiple CDM antenna port group indexes, perception measurement based on multiple CDM antenna port group signals is performed. In this case, it can be considered that the channels traversed by the signals of the multiple CDM antenna port groups are the same or similar, and a joint measurement can be performed to obtain a perception measurement result, that is, the measurement of one or more perception measurement quantities is performed based on the signals of the multiple CDM antenna port groups.

[0181] The above-mentioned perceptual measurements can be divided into the following categories:

[0182] The first-level measurement quantity (also known as the received signal / original channel information) includes at least one of the following:

[0183] Received signal / channel response complex results, amplitude / phase, I-path / Q-path and related operation results (operations including addition, subtraction, multiplication, and division, matrix addition, subtraction, multiplication, and division, matrix transposition, trigonometric operations, square root operations, and power operations, as well as threshold detection results and maximum / minimum value extraction results of the above operation results; wherein, 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, as well as threshold detection results and maximum / minimum value extraction results of the above operation results);

[0184] The second-level measurement quantity (also called basic measurement quantity) includes at least one of the following: time delay, Doppler, angle, intensity, and their multi-dimensional combination representation;

[0185] The third level of measurement (also known as basic attributes / states) includes at least one of the following: distance, speed, direction, spatial position, acceleration;

[0186] The fourth level of measurement (also known as advanced attributes / states) includes at least one of the following: target presence, trajectory, movement, expression, vital signs, quantity, imaging results, weather, air quality, shape, material, and composition.

[0187] The measurement result reporting configuration is used to indicate the criteria for the second device to report the measurement result, for example, including at least one of the reported time-frequency domain resource configuration, the reporting period, or the reported triggering event. The triggering event may include at least one of the following:

[0188] Events of entering a specific area (e.g., a neighborhood);

[0189] Events arriving at a specific time;

[0190] An event where a certain type of measurement signal reaches a certain threshold;

[0191] Events where the device moves more than some predefined (linear) distance from its previous position;

[0192] Events where the device orientation changes by more than some predefined angle;

[0193] Events where the device's movement speed exceeds some predefined speed threshold;

[0194] An event in which changes in environmental information (such as temperature, humidity, or light intensity) measured by device sensors exceed a certain range.

[0195] In some implementations, the measurement configuration information may include one or more items that are agreed upon by a protocol or pre-configured to save overhead of the first information.

[0196] In some embodiments, the auxiliary information includes at least one of the following:

[0197] Number of data transmission layers, number of data transmission streams, number of channel ranks, transmit beam indication, receive beam indication, number of perception targets, location information of perception targets, direction information of perception targets relative to the second device, location information of the first device, and direction information of the first device relative to the second device.

[0198] Among them, the above-mentioned number of data transmission layers or data transmission streams is less than or equal to the total number of antenna ports corresponding to the above-mentioned target signal. The number of data transmission layers or data transmission streams can implicitly indicate the number of the above-mentioned x antenna ports or y antenna ports to assist the second device in receiving the target signal.

[0199] The channel rank number corresponds to the number of antenna ports used for communication to assist the second device in receiving the target signal.

[0200] The above-mentioned transmit beam indication or receive beam indication can assist the second device to better receive the target signal.

[0201] The number of the above-mentioned perception targets can assist the second device in better performing perception measurement.

[0202] The above-mentioned location information of the perception target, direction information relative to the candidate target node, location information of the first device or direction information of the first device relative to the second device can assist the second device in adjusting the beam or spatial filter coefficient during signal reception to improve perception measurement performance.

[0203] 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.

[0204] The above-mentioned relevant information may be the number of antenna ports, antenna port index or CDM antenna port group and other related information.

[0205] The auxiliary information implicitly indicating the relevant information of at least one of the x antenna ports and the y antenna ports may include a mapping relationship between the auxiliary information and the relevant information defined in the protocol, and information indicated by the auxiliary information is determined based on the mapping relationship, or the protocol defines a rule for the auxiliary information to indicate the relevant information. For example, when the number of data transmission layers y is less than the total number of antenna ports N, the second device believes that the N antenna ports include y antenna ports for communication and Ny antenna ports for sensing.

[0206] Since the above information is used to implicitly indicate 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.

[0207] In some implementations, one or more items included in the auxiliary information may be agreed upon by a protocol or pre-configured to save overhead of the first information.

[0208] It should be noted that the embodiments of the present application do not limit the disabling of OCC mapping. OCC mapping may also be used in some implementations, and at least one of TDM, FDM or CDM may be used between target signals sent from different antenna ports.

[0209] The following example illustrates the multiplexing and mapping between antenna ports in the embodiment of the present application:

[0210] In this embodiment, the time domain or frequency domain resource allocation scheme for multiple antenna ports is described. Taking 5G system DMRS as an example, Figure 6 shows the time domain or frequency domain resource format of DMRS configuration type 1. For DMRS configuration type 1, the following methods are included:

[0211] Single-symbol DMRS: The subcarriers within an OFDM symbol are divided into two frequency-divided comb resource groups, each of which constitutes a CDM antenna port group. Within a CDM antenna port group, two OCCs (OCC mapping is performed between every two adjacent REs) support two antenna ports multiplexing, supporting up to four antenna ports.

[0212] Dual-symbol DMRS adds time-domain OCC on the basis of single-symbol. Each group of comb resources occupies two consecutive OFDM symbols. Each CDM antenna port group realizes four orthogonal antenna ports through four time-frequency domain OCCs, supporting up to eight antenna ports.

[0213] Taking DMRS for communication and perception, taking DMRS configuration type 1, single symbol as an example, assuming the number of communication data transmission layers is 2, 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 perception antenna ports. 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. The specific cases can be divided into the following:

[0214] Case 1: Antenna port 0 and antenna port 1 are used as communication antenna ports, antenna port 2 and antenna port 3 are used as sensing antenna ports, and OCC mapping is used: the signals corresponding to antenna port 2 and antenna port 3 are generated according to the existing protocol generation method, that is, after the two antenna port signals are generated based on the same DMRS sequence, they are mapped to the same frequency domain resources using the frequency domain OCC method, as shown in Figure 7. For example, the OCC sequence used by antenna port 2 is [+1+1], and the OCC sequence used by 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 meet the orthogonal relationship and can be sent using different beams. The receiving end measures antenna port 2 and antenna port 3 separately to obtain their respective sensing measurement results, and no joint measurement is performed. Correspondingly, the antenna port information indicated in the above-mentioned first information can be the communication antenna port index {0, 1}, the perception antenna port index {2, 3}; it can also be the communication CDM antenna port group index {0}, the perception CDM antenna port group index {1}.

[0215] 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 in 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 as a sensing antenna port at the same time (the corresponding signal is used as a reference channel signal in bistatic sensing). At this time, the antenna port information indicated in the first information can be a communication antenna port index {0}, a sensing antenna port index {2, 3}, and a general antenna port index {1} (assuming that the antenna port 1 signal is also used as a sensing signal).

[0216] Case 2: Antenna port 0 and antenna port 1 are used as communication antenna ports, antenna port 2 and antenna port 3 are used as perception antenna ports, and OCC mapping is not used between the perception antenna ports: the signals corresponding to antenna port 2 and antenna port 3 are generated based on different sequences (the specific sequence generation method is described in Example 4), and are mapped to the same frequency domain resources, as shown in Figure 7. In this method, antenna port 2 and antenna port 3 signals can be sent using different beams, and the receiving end measures antenna port 2 and antenna port 3 respectively to obtain their respective perception measurement results without performing joint measurement; the advantage of this method over Case 1 is that OCC mapping and de-OCC are not required, and 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 and supporting a larger unambiguous ranging range. Accordingly, the first information at this time may include indication information for disabling OCC.

[0217] Case 3, antenna port 0 and antenna port 1 are used as communication antenna ports, and antenna port 2 is used as a perception antenna port: In this method, CDM antenna port group 1 contains only one antenna port 2 for perception. At this time, the signal corresponding to antenna port 2 is directly mapped to the frequency domain resources in Figure 7. Compared with Case 1, the number of supported antenna ports is reduced, but there is no need for OCC mapping and de-OCC. 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 from different antenna ports due to unsatisfactory sequence cross-correlation characteristics. Accordingly, the first information at this time may include indication information for disabling OCC.

[0218] 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 signals corresponding to antenna ports 0, 1, 2, and 3 are generated according to the generation method defined in the protocol. The antenna port signals in each CDM antenna port group are mapped to the same frequency domain resources using frequency domain OCC, as shown in Figure 6 (left).

[0219] 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, resulting in a higher frequency domain sampling density for the sensing signal. 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, also used for sensing.

[0220] Case 5: Antenna ports 0 and 2 are used as communication antenna ports, antenna ports 1 and 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, as shown in Figure 6 (left).

[0221] Compared to Case 4, this approach does not require OCC mapping and de-OCCing, which further improves the frequency domain resource sampling rate of the perception signal. Accordingly, the first information needs to include an indication of disabling OCC (this indication may indicate that all CDM antenna port groups do not use OCC mapping). Optionally, the communication antenna port can also be a general antenna port, also used for perception.

[0222] Assuming the number of communication data transmission layers is 1, the above situation is illustrated as an example. Under this assumption, one communication DMRS antenna port is required; antenna port 0 can be used as the communication antenna port, and antenna port 1, 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 required for sensing, antenna port 1 can be used as the sensing antenna port. In this case, the first information can indicate that antenna port 0 is the communication antenna port (optionally, it can also be a general antenna port used for sensing) and antenna port 1 is the sensing antenna port, or indicate that CDM antenna port group 0 is the general CDM antenna port group, which includes the communication antenna port, namely antenna port 0 (optionally, it can also be a general antenna port used for sensing), and the sensing antenna port, namely antenna port 1. In this case, the total number of antenna ports is 2, and the only CDM antenna port group without data transmission is 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 to transmit data signals or for 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 above.

[0223] When only the signal of a single antenna port is required for sensing, antenna port 2 (or antenna port 3) can also be used as the sensing antenna port. In this case, the first information can indicate that antenna port 0 is a communication antenna port (optionally, a general antenna port can also be used for sensing) and antenna port 2 is a sensing antenna port, or indicate that CDM antenna port group 0 is a communication CDM antenna port group, which includes the communication antenna port, namely antenna port 0, and CDM antenna port group 1 is a sensing CDM antenna port group, which includes the sensing antenna port, namely antenna port 1. In this case, the total number of antenna ports is 2, and the CDM antenna port groups without data transmission are CDM antenna port group 0 and CDM antenna port group 1.

[0224] When signals from at least two antenna ports are required for perception, the signals corresponding to the two perception antenna ports may not be used for joint measurement (for example, they are sent using different beams, used for measurements of different perception targets, or for measurements of different perception measurement quantities, and associated with different measurement configurations). In this case, the two perception antenna ports may belong to the same CDM antenna port group or to different CDM antenna port groups. The signals corresponding to the two perception antenna ports may also be used for joint measurement (for measurements of the same perception target or the same perception measurement quantity, and associated with the same measurement configuration). In this case, the two perception antenna ports belong to different CDM antenna port groups and occupy different frequency domain resources. The specific antenna port selection, signal generation, resource mapping method, and first information indication method are similar to those described above.

[0225] To further increase the maximum number of supported antenna ports, a dual-symbol configuration can also be used, as shown in Figure 6 (right). In this case, the number of supported CDM antenna port groups remains 2, but the maximum number of antenna ports is 8. The specific antenna port selection, signal generation, resource mapping method, and first information indication method are similar to those described above and will not be repeated here. Similarly, by disabling OCC-related configurations, the frequency domain sampling density of the perceived signal can be increased, while the minimum time domain sampling interval can also be reduced. That is, the phase information between two adjacent symbols in the time domain can be used to improve Doppler measurement performance.

[0226] In addition to configuration type 1, DMRS currently supports configuration type 2, which further increases the maximum number of supported antenna ports. In this case, the number of supported CDM antenna port groups is 3, and both single-symbol and dual-symbol configurations are supported, as shown in Figure 8. This includes the following methods:

[0227] Single-symbol DMRS: The subcarriers within an OFDM symbol are divided into three CDM antenna port groups, each consisting of two adjacent subcarriers. Two antenna ports are multiplexed within a CDM antenna port group using two OCCs, and inter-group FDM supports up to six antenna ports.

[0228] Dual-symbol DMRS adds time-domain OCC on the basis of single-symbol. Each CDM antenna port group occupies two consecutive OFDM symbols. Each CDM antenna port group realizes four orthogonal antenna ports through four time-frequency domain OCCs, supporting up to 12 antenna ports.

[0229] The specific antenna port selection, signal generation, resource mapping method and first information indication method are similar to those of the DMRS configuration type 1 described above.

[0230] Alternatively, taking the 5G system CSI-RS as an example, its resource configuration is more flexible, and multiple CSI-RS resources can be used for sensing. The number of CSI-RS resource antenna ports can be single or multi-port, with a maximum of 32 ports. CDM is used for multi-port mapping, that is, multiple CSI-RS ports can be distinguished and mapped on the same time-frequency resources through CDM. Currently, there are four types of CDM in NR: noCDM, fd-CDM2, cdm4-FD2-TD2, and cdm8-FD2-TD4. Among them, noCDM is the simplest. The CSI-RS is mapped to only one RE, and there is no concept of code division. fd-CDM2 implements the multiplexing of 2 ports on 2 REs with 2 subcarriers in the frequency domain and 1 OFDM symbol in the time domain. cdm4-FD2-TD2 implements the multiplexing of 4 ports on 4 REs with 2 subcarriers in the frequency domain and 2 OFDM symbols in the time domain. cdm8-FD2-TD4 implements the multiplexing of 8 ports on 8 REs with 2 subcarriers in the frequency domain and 4 OFDM symbols in the time domain. Figure 9 shows a schematic diagram of several CDM schemes.

[0231] Taking the table of CSI-RS positions within a time slot defined by the NR protocol (as shown in Table 3), where CSI-RS row (Row) = 3 is used as an example, frequency-domain CDM (frequency-domain OCC modulation) can support CSI-RS transmission for two antenna ports, using frequency-domain CDM2. The maximum density is 1, meaning that two REs in each resource block (RB) carry the CSI-RS signal for each antenna port.

[0232] Table 3:

[0233] Among them, the above-mentioned Ports indicates the number of antenna ports, the above-mentioned Density indicates the density value, and the above-mentioned cdm-Type indicates the CDM type. They represent the starting frequency domain position and starting time domain position of the CDM antenna port group, CDM group index represents the CDM port group index, k′ and l′ represent the relative positions of the RE in the CDM antenna port group to The frequency domain position offset and time domain position offset of .

[0234] For example, it can be indicated that antenna port 0 is the antenna port for CSI measurement (communication antenna port), and antenna port 1 is the sensing antenna port. In order to utilize the phase information between adjacent REs, the first information can include indication information for disabling OCC, and the 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, the corresponding CDM antenna port group can include only antenna port 0 as the sensing antenna port, and there is no need to multiplex resources with other antenna ports through OCC.

[0235] Furthermore, in order to increase the frequency domain resource density of the perception signal, multiple CSI-RS resources with Row=3 can be configured, and the multiple CSI-RS resources occupy different frequency domain positions in the same OFDM symbol (this can be achieved by configuring the corresponding starting RE), as shown in Figure 10. And indicate in the signal configuration information that the signal usage of the multiple signal resources is for perception, or associate the multiple CSI-RS resources in the measurement configuration for perception. At this time, the receiving end can perform joint measurement on the multiple CSI-RS signal resources to obtain the perception measurement result during processing. As mentioned above, OCC mapping can be used in the CDM antenna port group corresponding to different CSI-RS resources, and then the perception measurement result is obtained based on the joint measurement of the signals of each CSI-RS resource; or, it can be indicated that OCC mapping is not used in the CDM antenna port group of multiple CSI-RS resources. For example, only one antenna port 0 can be included in the CDM antenna port group as the perception antenna port, and there is no need to multiplex resources with other antenna ports through OCC.

[0236] Alternatively, the CSI-RS resource of Row=9 can be directly configured, which supports up to 12 antenna ports and 6 CDM antenna port groups, as shown in Figure 11. It can be indicated that multiple antenna ports or multiple CDM antenna port groups are used for perception. At this time, the receiving end can perform joint measurements on the multiple CSI-RS signal resources to obtain perception measurement results during processing. As mentioned above, OCC mapping can be adopted in each CDM antenna port group, and then the perception measurement results can be obtained based on the joint measurement of the signals of each CSI-RS resource; alternatively, the first information can be used to indicate that OCC mapping is not adopted, and the signals corresponding to multiple antenna ports can be generated using different sequences; or it can be indicated that only one antenna port is included in multiple CDM antenna port groups as a perception antenna port, and the receiving end performs joint measurements based on the signals corresponding to multiple antenna ports in multiple CDM antenna port groups to obtain perception results.

[0237] When multiple communication antenna ports and multiple sensing antenna ports need to be configured at the same time, the specific antenna port selection, signal generation, resource mapping method and first information indication method are similar to those described above and will not be repeated here.

[0238] As an optional implementation manner, the target signals sent through at least two antenna ports in the first CDM antenna port group are signals generated using different sequences;

[0239] The first CDM antenna port group includes antenna ports among the x antenna ports.

[0240] The first CDM antenna port group is a CDM antenna port group including antenna ports used for sensing, and may be one or more CDM antenna port groups.

[0241] The above different sequences may be different types of sequences, such as PN sequence, ZC (Zadoff-Chu) sequence, or the above different sequences may be sequences with different initial values, primitive polynomials, cyclic shift values ​​or truncation positions, etc., which is not limited to this.

[0242] In this embodiment, the target signals used for perception can be generated based on different sequences, so that the target signals sent by the same CDM antenna port group can have more channel information. Based on the measurement of these target signals, the receiving end can obtain more channel information on time-frequency resources and improve the perception performance.

[0243] Optionally, the target signal sent through at least two antenna ports in the first CDM antenna port group includes at least one of the following:

[0244] Signals generated based on pseudo-random (PN) sequences;

[0245] Generate pseudo-random based on ZC sequence;

[0246] A signal generated based on a chirp signal.

[0247] The above-mentioned target signals sent through at least two antenna ports in the first CDM antenna port group include at least one of the above items, which can be understood as follows: the target signals sent by different antenna ports in 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 antenna ports are generated based on different sequences or signals.

[0248] Optionally, at least one of an initial value, a primitive polynomial, a cyclic shift value, or a truncation position of the PN sequence is associated with the second information; or

[0249] At least one of the root sequence number or the cyclic shift value of the ZC sequence is associated with the second information; or

[0250] At least one of the frequency modulation slope or the starting frequency of the Chirp signal is associated with the second information;

[0251] The second information includes at least one of the following:

[0252] Perception area identifier, indication information on whether it is used for perception, perception service identifier, perception service type identifier, perception target identifier, tag 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.

[0253] Among them, associating at least one of the initial value, primitive polynomial, cyclic shift value or truncation position of the above-mentioned PN sequence with the second information can refer to determining at least one of the initial value, primitive polynomial, cyclic shift value or truncation position of the PN sequence based on the second information.

[0254] Associating at least one of the root sequence number or the cyclic shift value of the ZC sequence with the second information may be determining at least one of the root sequence number or the cyclic shift value of the ZC sequence according to the second information.

[0255] Associating at least one of the frequency modulation slope or the starting frequency of the Chirp signal with the second information may be determining at least one of the frequency modulation slope or the starting frequency of the Chirp signal according to the second information.

[0256] In this embodiment, it is possible to determine the generation sequence or signal of the target signal based on at least one item included in the above-mentioned second information, so as to associate the transmitted target signal with at least one item included in the above-mentioned second information, thereby improving the correlation characteristics of the target signal and making the target signal transmission more reliable.

[0257] As an optional implementation, the method further includes:

[0258] The first device performs perception measurement on the target signal to obtain a perception measurement result.

[0259] The sensing measurement performed by the first device on the target signal may be sensing measurement of an echo signal of the target signal, specifically self-transmitting and self-receiving sensing measurement. The sensing measurement performed by the first device on the target signal may also be referred to as sensing measurement based on the target signal.

[0260] In this embodiment, the first device can send the target signal through N antenna ports, and simultaneously 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.

[0261] The first device may perform sensing measurement on the target signal to realize single-base sensing, that is, the receiving end only receives and processes the communication antenna port signal, and does not receive and process the sensing antenna port signal.

[0262] In some implementations, bistatic sensing can also be used, where the receiving end simultaneously receives and processes the target signal transmitted by the antenna port used for communication and the target signal transmitted by the antenna port used for sensing. Optionally, the target signal transmitted by the antenna port used for communication can also serve as a sensing reference channel signal, that is, the corresponding antenna port functions as both a communication antenna port and a sensing antenna port.

[0263] In the embodiment of the present application, the first device and the second device may be network-side devices or terminals. The first device may obtain a sensing requirement from a third device, and the first device or the second device may send a sensing measurement result to the third device after obtaining the sensing measurement result. The third device may be a core network sensing network function or a sensing network element.

[0264] Among them, the signaling transmission between the base station and the terminal, and between different terminals is 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 via 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 wireless access network through the N2 interface by AMF; or the core network perception network function sends it to the UPF, and the UPF sends it to the wireless access network through the N3 interface; or it is sent to the wireless access network (base station) through a newly defined interface; the signaling transmission between base stations can be through the Xn interface.

[0265] In the embodiment of the present application, the perception network function may also be called a perception network element or a perception management function (Sensing Management Function, Sensing MF), which may be located on the RAN side or the core network side. It refers to a network node in the core network or RAN responsible for at least one function, such as perception request processing, perception resource scheduling, perception information interaction, and perception data processing. It may be based on an upgrade of the AMF or LMF in the mobile communication network, or it may be another network node or a newly defined network node. Specifically, the functional characteristics of the perception network function / perception network element may include at least one of the following:

[0266] Target information is exchanged with a wireless signal sending device or a wireless signal measuring device (including a target terminal or a serving base station of the target terminal or a base station associated with a target area), wherein the target information includes a perception processing request, a perception capability, perception assistance data, a perception measurement quantity type, a perception resource configuration information, etc., to obtain the value of the target perception result or the perception measurement quantity (uplink measurement quantity or downlink measurement quantity) sent by the wireless signal measuring device; wherein the wireless signal can also be referred to as a perception signal.

[0267] The perception method to be used is determined based on factors such as the type of perception service, perception service consumer information, required perception service quality (QoS) requirement information, the perception capability of the wireless signal sending device, and the perception capability of the wireless signal measuring device. The perception method may include: wireless access network device A sends and wireless access network device B receives, or the wireless access network device sends and the terminal receives, or the wireless access network device A sends and receives by itself, or the terminal sends and the wireless access network device receives, or the terminal sends and receives by itself, or terminal A sends and terminal B receives, etc.

[0268] The perception device serving the perception service is determined based on factors such as the type of perception service, information about the perception service consumer, required perception QoS requirement information, the perception capability of the wireless signal sending device, and the perception capability of the wireless signal measuring device. The perception device includes a wireless signal sending device or a wireless signal measuring device.

[0269] Manage the overall coordination and scheduling of resources required for sensing services, such as configuring sensing resources for wireless access network devices or terminals;

[0270] The sensory measurement values ​​are processed or calculated to obtain sensory results. Furthermore, the sensory results are verified and the sensory accuracy is estimated.

[0271] In this embodiment of the present application, the perceived demand information includes at least one of the following:

[0272] Perception services or perception service types, the perception services may be, for example, detecting whether a target exists, positioning, speed detection, distance detection, angle detection, acceleration detection, material analysis, component analysis, shape detection, category classification, RCS detection, polarization scattering characteristic detection, fall detection, intrusion detection, number statistics, indoor positioning, gesture recognition, lip reading recognition, gait recognition, expression recognition, facial recognition, breathing monitoring, heart rate monitoring, pulse monitoring, humidity / brightness / temperature / atmospheric pressure monitoring, air quality monitoring, weather condition monitoring, environmental reconstruction, topography, building / vegetation distribution detection, human flow or Traffic flow detection, crowd density, vehicle density detection, etc.; the sensing service type can be to classify multiple different sensing services according to certain characteristics, such as classification according to function into detection sensing services (such as intrusion detection, fall detection), parameter estimation sensing services (distance, angle, speed calculation), recognition sensing services (action recognition, identity recognition), etc.; it can also be classified according to the range of perception (close-range perception, medium-range perception, long-range perception), according to the degree of perception refinement (coarse-grained perception, fine force perception, etc.), according to power consumption / energy consumption, according to resource usage, etc.;

[0273] Perception target area: refers to the location area where the perception object may exist, or the location area where imaging or environmental reconstruction is required;

[0274] 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 a typical perception object.

[0275] Perception Quality of Service (QoS): Performance indicators for perceiving a target area or object, including at least one of the following:

[0276] Perception resolution, which can be divided into: ranging resolution, angle resolution, velocity resolution, imaging resolution, etc.;

[0277] Perception accuracy can be divided into: ranging accuracy, angle measurement accuracy, speed measurement accuracy, positioning accuracy, etc.

[0278] Perception range, which can be divided into: ranging range, speed measurement range, angle measurement range, imaging range, etc.;

[0279] Perception latency, such as the time interval from the sending of a perception signal to the acquisition of a perception result, or the time interval from the initiation of a perception request to the acquisition of a perception result;

[0280] Perception update rate, such as the time interval between two consecutive perception executions and the acquisition of perception results;

[0281] detection probability, i.e., the probability of correctly detecting the perceived object given its presence);

[0282] False alarm probability, such as the probability of incorrectly detecting a perceived target when the perceived target does not exist);

[0283] The maximum number of targets that can be perceived.

[0284] In an embodiment of the present application, a first device transmits 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. The first device transmits 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. In this way, by transmitting the target signal 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 enabling information to be transmitted to the second device during the process of transmitting the signal for sensing and measurement, thereby improving the communication performance of the device.

[0285] Please refer to FIG12, which is a flowchart of a signal receiving method provided in an embodiment of the present application. As shown in FIG12, the method includes the following steps:

[0286] Step 1201: The second device performs a receiving operation, where the receiving operation includes:

[0287] receiving a target signal sent by the first device through y antenna ports; or,

[0288] receiving a target signal sent by the first device through y antenna ports, and receiving, by the first device, the target signal sent through x antenna ports;

[0289] The target signal sent through y antenna ports is used for communication, and y is an integer greater than or equal to 1;

[0290] The target signal sent through x antenna ports is used for perception, where x is an integer greater than or equal to 1.

[0291] Optionally, the x antenna ports and the y antenna ports have a common antenna port, and the target signal sent by the common antenna port is used for perception and communication.

[0292] Optionally, the value of x is associated with at least one of the following:

[0293] Number of perceived targets and number of perception beams.

[0294] Optionally, the value of y is associated with at least one of the following:

[0295] Channel rank, number of devices supporting simultaneous communication, number of transmission layers, and system throughput.

[0296] Optionally, when x is greater than 1, the same receiving beam is used for the x antenna ports; or,

[0297] When x is greater than 1, the same spatial filter or spatial filter coefficient is used for the x antenna ports.

[0298] 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:

[0299] Based on different sequence generation;

[0300] Orthogonal cover code OCC mapping is not used;

[0301] The first CDM antenna port group includes antenna ports among the x antenna ports.

[0302] Optionally, the second CDM antenna port group including the antenna port among the x antenna ports includes only one antenna port.

[0303] Optionally, the x antenna ports include antenna ports in a third CDM antenna port group, and the y antenna ports include antenna ports in the third CDM antenna port group.

[0304] Optionally, the method further includes:

[0305] The second device receives first information sent by the first device, where the first information includes at least one of the following:

[0306] Configuration information, measurement configuration information, and auxiliary information of the target signal;

[0307] The auxiliary information is used to assist at least one of perception measurement and communication.

[0308] Optionally, the configuration information of the target signal includes at least one of the following:

[0309] Antenna port information, signal resource identification, waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction, quasi-co-location QCL relationship, cyclic prefix information.

[0310] Optionally, the antenna port information includes at least one of the following:

[0311] Antenna port number information, antenna port index information, CDM antenna port group number information, CDM antenna port group index information, and indication information for disabling orthogonal cover code OCC.

[0312] Optionally, the antenna port number information includes at least one of the following:

[0313] The total number of antenna ports corresponding to the target signal, the number of antenna ports used for sensing, the number of antenna ports used for communication, and the number of general antenna ports; or

[0314] The antenna port index information includes at least one of the following:

[0315] Index information of all antenna ports corresponding to the target signal, index information of antenna ports used for perception, index information of antenna ports used for communication, and index information of general antenna ports; or,

[0316] The CDM antenna port group number information includes at least one of the following:

[0317] the total number of CDM antenna port groups corresponding to the target signal, the number of CDM antenna port groups used for sensing, the number of CDM antenna port groups used for communication, and the number of general CDM antenna port groups, wherein the general CDM antenna port group includes antenna ports used for sensing and antenna ports used for communication, or includes a general CDM antenna port group including a general antenna port; or,

[0318] The CDM antenna port group index information includes at least one of the following:

[0319] Index information of all CDM antenna port groups corresponding to the target signal, index information of the CDM antenna port group for sensing, index information of the CDM antenna port group for communication, and index information of a general CDM antenna port group, where the general CDM antenna port group includes antenna ports for sensing and antenna ports for communication, or includes a general CDM antenna port group including a general antenna port;

[0320] The universal antenna port is an antenna port used for both perception and communication.

[0321] Optionally, the indication information for disabling OCC is used to indicate at least one of the following:

[0322] OCC mapping is not used within the same CDM antenna port group;

[0323] The CDM antenna port group used for sensing includes only one antenna port.

[0324] Optionally, the measurement configuration information includes at least one of the following:

[0325] Measured signal resource indication, measured number of signal resources, measured antenna port indication, measured CDM antenna port group indication, perception measurement quantity, and measurement result reporting configuration.

[0326] Optionally, the auxiliary information includes at least one of the following:

[0327] Number of data transmission layers, number of data transmission streams, number of channel ranks, transmit beam indication, receive beam indication, number of perception targets, location information of perception targets, direction information of perception targets relative to the second device, location information of the first device, and direction information of the first device relative to the second device.

[0328] 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.

[0329] Optionally, the target signal sent through at least two antenna ports in the first CDM antenna port group includes at least one of the following:

[0330] Signal generated based on pseudo-random PN sequence;

[0331] Generate pseudo-random based on ZC sequence;

[0332] A signal generated based on a chirp signal.

[0333] Optionally, at least one of an initial value, a primitive polynomial, a cyclic shift value, or a truncation position of the PN sequence is associated with the second information; or

[0334] At least one of the root sequence number or the cyclic shift value of the ZC sequence is associated with the second information; or

[0335] At least one of the frequency modulation slope or the starting frequency of the Chirp signal is associated with the second information;

[0336] The second information includes at least one of the following:

[0337] Perception area identifier, indication information on whether it is used for perception, perception service identifier, perception service type identifier, perception target identifier, tag 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.

[0338] It should be noted that this embodiment is an implementation of the second device corresponding to the embodiment shown in Figure 3. Its specific implementation can refer to the relevant description of the embodiment shown in Figure 3. In order to avoid repeated description, this embodiment will not be repeated.

[0339] The following describes the method provided in the embodiments of the present application through multiple examples:

[0340] Example 1:

[0341] This embodiment mainly describes the perception and communication process of device A sending and device B receiving.

[0342] In this embodiment, taking the base station sending 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 shown in Figure 13, including the following steps:

[0343] Step 1: The perception network function sends perception requirement information to the base station (optionally). The perception requirement information is described in Explanation 2.

[0344] Step 2: The base station sends first information to the terminal, where the first information includes at least one of the following:

[0345] Target signal configuration information, measurement configuration information, and auxiliary information.

[0346] The target 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:

[0347] Information on the number of antenna ports, including at least one of the following: the total number of antenna ports N, the number of antenna ports used for sensing x, the number of antenna ports used for communication y, and the number of general antenna ports (antenna ports used for both sensing and communication) z;

[0348] Antenna port index information, including the index list of all antenna ports, the index list of sensing antenna ports, the index list of communication antenna ports, and the index list of common antenna ports (antenna ports used for both sensing and communication);

[0349] Information on the number of CDM antenna port groups, including the total number of CDM antenna port groups, the number of CDM antenna port groups used for sensing (CDM antenna port groups contain only sensing antenna ports), the number of CDM antenna port groups used for communication (CDM antenna port groups contain only sensing antenna ports), and the number of CDM antenna port groups used for both sensing and communication (corresponding to CDM antenna port groups that contain both sensing and communication antenna ports, or contain general-purpose antenna ports).

[0350] CDM antenna port group index information, including the indexes of all CDM antenna port groups, the index of the CDM antenna port group used for sensing (the CDM antenna port group only contains sensing antenna ports), the index of the CDM antenna port group used for communication (the CDM antenna port group only contains sensing antenna ports), and the index of the CDM antenna port group used for both sensing and communication (the corresponding CDM antenna port group contains both sensing antenna ports and communication antenna ports, or contains general antenna ports);

[0351] The indication information of disabling OCC indicates that the target signal does not use OCC mapping. Different antenna ports in the same CDM antenna port group may use different sequences to generate transmit signals, or each CDM antenna port group contains only a single antenna port, or a designated CDM antenna port group (CDM antenna port group used for perception) contains only a single antenna port.

[0352] The above-mentioned indication of disabling OCC can be configured as a whole, indicating that all CDM antenna port groups do not adopt OCC mapping, or it can be configured separately for each CDM antenna port group, for example, the CDM antenna port group used only for perception does not adopt OCC mapping; it can also be that the CDM antenna port group that includes the perception antenna port by default does not adopt OCC mapping, or only supports a single antenna port, and no indication needs to be displayed.

[0353] In addition to the above, the configuration information of the target signal may also include at least one of the following:

[0354] Signal resource identification, signal purpose, waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction, QCL relationship, cyclic prefix information.

[0355] The measurement configuration information includes at least one of the following:

[0356] an indication of the signal resource being measured, such as a signal resource identifier (ID);

[0357] The number of signal resources measured;

[0358] The measured signal antenna port indication includes at least one of the number of measured signal antenna ports and the antenna port index. For example, by indicating multiple antenna port indexes, a perception measurement based on signals from multiple antenna ports is performed. In this case, it is considered that the channels experienced by the signals of the multiple antenna ports are the same or similar, and a joint measurement can be performed to obtain a perception measurement result, that is, the measurement of one or several perception measurement quantities is performed based on the signals of the multiple antenna ports;

[0359] 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 indices, perception measurement based on multiple CDM antenna port group signals is 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 a joint measurement can be performed to obtain a perception measurement result, that is, the measurement of one or several perception measurement quantities is based on the signals of the multiple CDM antenna port groups;

[0360] Perceptual measurement quantity;

[0361] The reporting configuration, i.e., the criteria for reporting the measurement result of the second device, includes at least one of the reported time-frequency domain resource configuration, the reporting period, and the reported triggering event. The triggering event includes at least one of the following:

[0362] Events of entering a specific area (e.g., a neighborhood);

[0363] Events arriving at a specific time;

[0364] Or an event where a certain type of measurement signal reaches a certain threshold;

[0365] or events where the device moves more than some predefined (linear) distance from its previous position;

[0366] Or events where the device orientation changes by more than some predefined angle;

[0367] Or the event that the device's movement speed exceeds some predefined speed threshold;

[0368] Or the environmental information measured by the device sensor changes (such as temperature / humidity / light intensity) beyond a certain range.

[0369] The auxiliary information includes at least one of the following:

[0370] Number of data transmission layers / streams (less than or equal to the total number of antenna ports);

[0371] Channel rank number;

[0372] Transmit beam indication, including at least one of the total number of transmit beams, the number of sensing beams, and the number of communication beams;

[0373] Receive beam indication, including a recommended receive beam direction or corresponding index;

[0374] Number of perceived targets;

[0375] Sense the target's location information, or its direction relative to the second device (to help the second device adjust the beam (spatial filter coefficient) when receiving the signal);

[0376] Location information of the first device, or direction information of the first device relative to the second device.

[0377] Optionally, the above information can be used to implicitly indicate the configuration of communication antenna ports and perception antenna ports. For example, when the number of data transmission layers y is less than the total number of antenna ports N, the receiving end believes that the N antenna ports include y communication antenna ports and Ny perception antenna ports.

[0378] Among them, at least one of the target signal configuration information, measurement configuration information, and auxiliary information may also be sent by the perception network function to the terminal (and base station); and the target signal configuration information, measurement configuration information, and auxiliary information may be sent by the same signaling, or sent by different signaling, or two of them may be sent by the same signaling, and the other may be sent by different signaling.

[0379] Step 3: The base station transmits the target signal.

[0380] Step 4: The terminal receives the target signal and performs communication measurement and perception measurement to obtain the perception measurement result.

[0381] Step 5: The terminal sends the perception measurement result to the perception network function.

[0382] Step 6: The perception network function calculates the perception result based on the perception measurement result. Optionally, the terminal may send the perception measurement result to the base station, and the base station may calculate the perception result based on the perception measurement result and send it to the perception network function.

[0383] If the signal corresponding to the communication antenna port is a signal for channel measurement or beam management, the communication-related measurement results need to be fed back, including but not limited to 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-to-noise ratio (SNR), signal to interference plus noise ratio (SINR), bit error probability (BER), block error rate (BLER), and beam indication (for example, beam index). At least one of the following.

[0384] The above perception results are further calculated based on the perception measurement results. The perception measurement results and perception results are the values ​​of the perception measurement quantities. For example, the perception measurement results are the delay and angle information corresponding to the perception target, and the perception results are the position or trajectory information of the perception target.

[0385] It should be noted that for the scenario where device A sends and device B receives perception and communication, the terminal can also send a target signal based on the first information after receiving the first information, and the base station receives the signal to measure and obtain the perception measurement result and send it to the perception network function; or the target signal can be sent and received between base stations, or between terminals. This embodiment does not limit this.

[0386] Example 2:

[0387] This embodiment mainly describes the self-transmitting and self-receiving perception and communication process.

[0388] In this embodiment, a base station sends a target signal and receives a target signal echo for sensing as an example to illustrate a specific signal transmission, reception, and interaction process, as shown in FIG14 , including the following steps:

[0389] Step 1: The sensing network function sends sensing requirement information to the base station (optional).

[0390] Step 2: The base station sends first information to the terminal, where the first information includes at least one of the following:

[0391] Configuration information of the target signal;

[0392] Measurement configuration information (when the target signal is a reference signal used by the terminal for channel estimation and demodulation, measurement configuration information does not need to be sent);

[0393] Auxiliary Information

[0394] Step 3: The base station sends a target signal.

[0395] Step 4: Receive the target signal and measure it. This can be done in two ways:

[0396] Step 4a: The base station performs measurement based on the received target signal echo to obtain a perception measurement result;

[0397] Step 4b: The terminal receives the target signal and performs measurement to obtain a communication measurement result; alternatively, the terminal receives the target signal and uses it for channel estimation and demodulation.

[0398] Step 5: Feedback of measurement results can be provided in the following two ways:

[0399] Step 5a: The base station sends the perception measurement result to the perception network function;

[0400] Step 5b: 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 feed back the measurement result.

[0401] Step 6: The perception network function calculates the perception result based on the perception measurement result. Alternatively, the base station may calculate the perception result based on the perception measurement result and send it to the perception network function.

[0402] It should be noted that for the scenario of spontaneous perception and communication, the terminal may also receive the first information and then send the target signal according to the first information. The terminal receives the target signal echo for measurement, obtains the perception measurement result and sends it to the perception network function. The base station receives the target signal for measurement to obtain the communication measurement result, or the base station receives the target signal for channel estimation and demodulation.

[0403] Example 3:

[0404] This embodiment mainly describes the generation of a sequence of target signals for perception.

[0405] In this embodiment, a specific method of generating different antenna port signals using different sequences is further described.

[0406] The signal sequence generation method for each antenna port may be at least one of the following:

[0407] Based on PN sequence generation;

[0408] Generated based on a ZC sequence (or a cyclically extended sequence of a ZC sequence, or a truncated sequence of a ZC sequence);

[0409] Based on Chirp signal generation.

[0410] If the sequence is generated and associated with the second information based on a PN sequence, for example, by performing quadrature phase shift keying (QPSK) modulation, then an initial value of the PN sequence, or a primitive polynomial of the PN sequence, or a cyclic shift value of the PN sequence, or a truncation position of the PN sequence (i.e., the sequence may be generated by obtaining an entire sequence based on the system bandwidth and then truncation based on the actual bandwidth) is associated with the second information;

[0411] If the sequence is generated based on a ZC sequence, the root sequence number or cyclic shift value of the ZC sequence is associated with the second information;

[0412] If the sequence is generated based on a Chirp signal, the frequency modulation slope or the starting frequency of the Chirp signal is associated with the second information.

[0413] The second information includes at least one of the following:

[0414] Perception area identification;

[0415] Whether it is used for perception identification, perception service identification, or perception service type identification;

[0416] Perception target identification, the tag identification associated with the perception target;

[0417] Number of perceived targets;

[0418] Perceptual measurement quantity identification;

[0419] The device identifier involved in the sensing measurement may be, for example, a cell identifier or a terminal identifier, such as a Radio Network Temporary Identifier (RNTI);

[0420] Time domain resource information;

[0421] Frequency domain resource information;

[0422] Antenna port index;

[0423] CDM antenna port group index;

[0424] Number of antenna ports;

[0425] Number of CDM antenna port groups;

[0426] Antenna index, or antenna group index / subarray index / antenna panel index

[0427] Maximum number of antennas, or number of antenna groups / subarrays / antenna panels

[0428] Codeword index.

[0429] Among them, the time domain resource information may include the following

[0430] Radio frame index, subframe index, time slot index, symbol index, duration, time domain density, CP type, CP length, and also coherent processing time window index or number of coherent processing time windows;

[0431] Among them, the wireless frame index, subframe index, time slot index, and symbol index can be the wireless frame index and subframe index defined by the communication system, or the relative wireless frame index and subframe index within the perception coherent processing time window / perception resource block, or the symbol index within the time slot, or the symbol index within the coherent processing time window / perception resource block, or the time slot index within the wireless frame, or the time slot index within the coherent processing time window / perception resource block.

[0432] The above-mentioned coherent processing time window is the time window for each calculation and output of the perception measurement result (for example, the time domain resource length corresponding to the range-Doppler map obtained by performing a two-dimensional FFT operation), which can include multiple time slots / symbols.

[0433] 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, and subcarrier spacing.

[0434] The above-mentioned frequency domain resource information can also introduce a perception resource block index. The perception resource block includes multiple physical resource blocks (PRBs) and multiple time slots / symbols, that is, it includes 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);

[0435] Further explanation of the above second information and sequence generation is as follows:

[0436] Perception area identification:

[0437] The sensing area is the target area to be sensed, which can be divided in advance and includes:

[0438] Multiple base station coverage areas (cells) form a perception area, associated with a perception area identifier n areaIDAs shown in Figure 15, each hexagonal area represents a base station coverage area, and areas with the same number represent the same perception area. In particular, the access network notification area (RAN-based notification area, RNA) can be used as a perception area, and the RNA ID can be used as the perception area identifier.

[0439] The coverage area (cell) of a single base station contains multiple sensing areas, which are associated with multiple sensing area identifiers. For example, with the base station as the origin, its coverage area is rasterized and divided into multiple sensing areas, and each area is associated with an area ID recorded as n. areaID ,As shown in Figure 16, the dotted line represents the base station ,coverage area, and each square represents the divided sensing area.

[0440] Alternatively, the area IDn may be generated by directly using a geographical area identifier such as longitude and latitude or coordinates that is not related to the base station location. areaID .

[0441] It can also be that different angle ranges relative to the base station are associated with different area IDn areaID For example, the azimuth angle x1°~x2° and the pitch angle y1°~y2° correspond to the sensing area ID1, where x and y are real numbers.

[0442] The above-mentioned indication information (such as an identifier) ​​indicating whether it is used for perception, or the perception service identifier, or the perception service type identifier may be generated as follows:

[0443] Based on whether it is used for perception, when it is not used for perception, n sensingID =0; when used for perception n sensingID =1.

[0444] Based on the specific perception service identification, such as different perception services corresponding to different perception service ID n sensingID , wherein the sensing service may be, for example, the following:

[0445] Detection of target presence, positioning, speed detection, distance detection, angle detection, acceleration detection, material analysis, component analysis, shape detection, classification, Radar Cross Section (RCS) detection, polarization scattering characteristic detection, fall detection, intrusion detection, population statistics, indoor positioning, gesture recognition, lip reading recognition, gait recognition, expression recognition, facial recognition, respiration monitoring, heart rate monitoring, pulse monitoring, humidity / brightness / temperature / atmospheric pressure monitoring, air quality monitoring, weather monitoring, environmental reconstruction, topography, building / vegetation distribution detection, pedestrian or vehicle flow detection, crowd density, vehicle density detection, etc.

[0446] It can also be the identification of the perception service type. Different categories correspond to different perception service IDs n sensingID , for example, the perception functions or business types are divided according to the scope and scale, for example:

[0447] Category 1 (close distance / small range): material analysis, component analysis, gesture recognition, lip reading recognition, gait recognition, expression recognition, facial recognition, respiratory monitoring, heart rate monitoring, pulse monitoring, etc.

[0448] Category 2 (medium distance / medium range): intrusion detection, population counting, indoor positioning, etc.

[0449] Category 3 (long distance / large range): humidity / brightness / temperature / atmospheric pressure monitoring, air quality monitoring, weather condition monitoring, environmental reconstruction, topography, building / vegetation distribution detection, pedestrian or vehicle flow detection, etc.

[0450] Other classification standards can also be used, such as classification based on function into positioning perception, imaging perception, pattern recognition perception, etc.; classification based on power consumption / energy consumption, classification based on resource occupancy, etc.

[0451] Alternatively, the perception signal may be generated according to the measurement quantity identifier, that is, at least one of the perception measurement quantities is associated with a measurement quantity identifier, for example, as shown in Table 4 below:

[0452] Table 4:

[0453] The perception measurement quantity is described above and will not be elaborated here.

[0454] The above-mentioned perception target identifier (or the tag identifier associated with the perception target) may be as follows:

[0455] The signal sending device obtains the identification of the sensing target. Different sensing targets correspond to different sensing target ID n targetID , where the determination of the perception target can be based on prior information obtained from existing measurement results. For example, base station A sends a perception measurement signal through an omnidirectional beam to perform preliminary measurement, base station A obtains a range-Doppler map (or a range-angle map, etc.), determines the number of targets based on the range-Doppler map, and assigns an ID to each target. Alternatively, base station A sends a perception measurement signal through an omnidirectional beam to perform preliminary measurement, and a receiving device (such as another base station or terminal) obtains a range-Doppler map (or a range-angle map, etc.), determines the number of targets based on the range-Doppler map, assigns an ID to each target, and then notifies the sending base station of the target ID or target-related information.

[0456] After the signal sending device determines the ID of each target, it generates signals for sensing different targets according to different target IDs. These sensing signals are sent using different beams, with the beam direction pointing to the sensing target associated with the target ID.

[0457] The sensing target is equipped with a tag, and different tags are associated with different tag IDs. The transmitting device obtains the corresponding tag ID and generates the signal used to sense the 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 tag itself. It can also be a terminal, that is, a sensing target equipped with a standard transceiver module, such as a communication device such as an in-vehicle terminal installed in a car.

[0458] It can also be the identification of the perception target type. Different types correspond to different perception target IDs. For example, they are divided into stationary targets and moving targets. The latter can be further divided into high-speed targets and low-speed targets. Different types of targets correspond to different n targetID .

[0459] Specifically, the perception area is identified by n areaID For example, the initial value of the PN sequence can be:

[0460] c init =n areaID , where n ereaID Identify the sensing area; or

[0461] or, or, or

[0462] in, is the number of symbols in each time slot, is the time slot index in the radio frame, l is the symbol index in the time slot, n araaID is the perception area identifier, x is a non-negative positive integer.

[0463] Among them, the coefficient parameter of the first term in the initialization formula can be determined according to the variable value range and the value of the coefficient parameter of the following terms. For example, if there are 1000 perception area IDs in total and they need to be represented by 10-bit binary numbers, then x=10 can be set to ensure that no repeated generation sequence occurs. Where A is a non-negative positive integer, and A=31 can be set.

[0464] or in is the physical cell identifier, or or Where x and y are non-negative positive integers.

[0465] 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.

[0466] or It can also be or Where x, y, and A are non-negative positive integers, and A can be set to 31.

[0467] or Where q is the codeword index, which can also be or Where x, y, and A are non-negative positive integers, and A can be set to 31.

[0468] Alternatively, taking the sensing area identifier and the sensing target identifier as an example, the initial value of the PN sequence may be: or

[0469] Alternatively, use antenna port index n port For example, the initial value of the PN sequence can be:

[0470] or or or

[0471] Where x, y, z, and A are non-negative positive integers, so A=31, n port is the antenna port index, is the physical cell identifier, is the number of symbols in each time slot, is the time slot index in the radio frame, l is the symbol index in the time slot, n period is the coherent processing time window index. It should be noted that the symbol index l and the time slot index It can be the symbol index and time slot index corresponding to a symbol in a certain perceptual coherent processing time window.

[0472] Alternatively, the perceptual coherence processing time window index n period and antenna port index n port For example, the initial value of the PN sequence can be:

[0473] c init =(2 x (n period +1)+n port )mod2 A or c init =2 x (n period +1)+n port

[0474] or or or or

[0475] in represents the number of time slots corresponding to each coherent processing time window, The time slot index within the coherent processing time window.

[0476] The signal sequence may also be generated based on a ZC sequence. The perception signal generated in this manner has a smaller peak-to-average power ratio (PAPR) than a perception signal generated based on a PN sequence, has higher power amplifier efficiency, and is beneficial to improving perception measurement coverage performance. The root sequence number value or cyclic shift value of the ZC sequence is associated with the first information. Specifically, the generation method may be:

[0477] Determined by the root sequence number q

[0478] Then we get the base sequence 0≤n <M,N ZC is the largest prime number less than the sequence length M. Further, the perception signal is obtained by cyclic shift:

[0479] The sequence length M is related to the perception signal resource and the sequence length. For example, the number of frequency domain resource units used to transmit the perception signal, that is, the sequence length, is determined according to the perception signal bandwidth and the frequency domain resource interval.

[0480] Among them, the cyclic shift value α and the root sequence number q are associated with the first information. The association method can be that the perception area identifier is an 8-bit ID, and all or part of the 8 bits can be used to calculate the root sequence number q or 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; for another example, the cyclic shift value α is determined according to the perception service identifier, and the root sequence number q is determined according to the perception area identifier. There may be a preset mapping relationship between different perception area identifiers and the root sequence number q, as shown in Table 5 below. The preset mapping relationship is agreed upon or obtained through a signaling message.

[0481] Table 5:

[0482] It can also be calculated according to a formula. Specifically, the root sequence number q can be calculated, for example:

[0483] Among them, u∈{0,1,...,29} is the group number, v is the base sequence number in the group, and taking the perception area identifier as an example, the value can be u=(n areaID )mod30,v=0.

[0484] The calculation method of the cyclic shift value can be in, is the maximum value in the region identifier.

[0485] Alternatively, the signal sequence may be generated based on a chirp or FMCW signal, where the frequency modulation slope of the chirp or FMCW signal is associated with the first information. FMCW transmits a waveform whose frequency varies with time, typically linearly. A frequency modulation cycle of an FMCW waveform is generally also called a chirp, as shown in FIG17 .

[0486] Chirp signal can be expressed by the following formula:

[0487] Among them, A0 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).

[0488] Among them, different frequency modulation slopes are associated with the second information. For example, different perception services have different requirements on bandwidth and Chirp duration, that is, different frequency modulation slope requirements. There may be a preset mapping relationship between different perception service IDs and different frequency modulation slopes.

[0489] In addition, different starting frequencies are associated with the second information, for example, there is a preset mapping relationship between different perception areas and starting frequencies.

[0490] The method provided in the embodiment of the present application can solve the problem of high overhead when the perception signal and the communication signal are independently configured and allocated, and when frequency domain resources are used, while ensuring that the perception performance meets the requirements by rationally allocating signal resources of multiple antenna ports. The methods include the allocation and resource mapping of perception antenna ports and communication antenna ports under the same signal type; using multiple signal antenna ports of different CDM antenna port groups for joint perception; when a CDM antenna port group contains a perception antenna port, limiting the number of antenna ports in the CDM antenna port group, or not using OCC mapping, etc. The method provides specific antenna port selection and allocation, signal generation, resource mapping methods, and signal transmission and indication methods.

[0491] The communication perception method provided in the embodiment of the present application can be executed by a communication perception device. In the embodiment of the present application, the communication perception device provided in the embodiment of the present application is described by taking the communication perception method executed by the communication perception device as an example.

[0492] The signal receiving method provided in the embodiment of the present application can be executed by a signal receiving device. In the embodiment of the present application, the signal receiving device performing the signal receiving method is taken as an example to illustrate the signal receiving device provided in the embodiment of the present application.

[0493] Please refer to FIG. 18 , which is a structural diagram of a communication sensing device provided in an embodiment of the present application. As shown in FIG. 18 , the communication sensing device 1800 includes:

[0494] A first sending module 1801 is configured to send a target signal through x antenna ports, where the target signal sent through the x antenna ports is used for sensing, where x is an integer greater than or equal to 1;

[0495] The second sending module 1802 is configured to send the target signal through y 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.

[0496] Optionally, the x antenna ports and the y antenna ports have a common antenna port, and the target signal sent by the common antenna port is used for perception and communication.

[0497] Optionally, the value of x is associated with at least one of the following:

[0498] Number of perceived targets and number of perception beams.

[0499] Optionally, the value of y is associated with at least one of the following:

[0500] Channel rank, number of devices supporting simultaneous communication, number of transmission layers, and system throughput.

[0501] Optionally, when x is greater than 1, the x antenna ports use the same transmit beam; or,

[0502] When x is greater than 1, the x antenna ports use the same spatial filter or spatial filter coefficient.

[0503] Optionally, when x is greater than 1, the x antenna ports belong to different code division multiplexing (CDM) antenna port groups; or,

[0504] Among the x antenna ports, at least two antenna ports belong to the same CDM antenna port group.

[0505] 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:

[0506] Based on different sequence generation;

[0507] Orthogonal cover code OCC mapping is not used;

[0508] The first CDM antenna port group includes antenna ports among the x antenna ports.

[0509] Optionally, the second CDM antenna port group including the antenna port among the x antenna ports includes only one antenna port.

[0510] Optionally, the x antenna ports include antenna ports in a third CDM antenna port group, and the y antenna ports include antenna ports in the third CDM antenna port group.

[0511] Optionally, the device further includes:

[0512] The third sending module is configured to send first information to the second device, where the first information includes at least one of the following:

[0513] Configuration information, measurement configuration information, and auxiliary information of the target signal;

[0514] The auxiliary information is used to assist at least one of perception measurement and communication.

[0515] Optionally, the configuration information of the target signal includes at least one of the following:

[0516] Antenna port information, signal resource identification, signal usage, waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction, quasi-co-site QCL relationship, and cyclic prefix information.

[0517] Optionally, the antenna port information includes at least one of the following:

[0518] Antenna port number information, antenna port index information, CDM antenna port group number information, CDM antenna port group index information, and indication information for disabling orthogonal cover code OCC.

[0519] Optionally, the antenna port number information includes at least one of the following:

[0520] The total number of antenna ports corresponding to the target signal, the number of antenna ports used for sensing, the number of antenna ports used for communication, and the number of general antenna ports; or

[0521] The antenna port index information includes at least one of the following:

[0522] Index information of all antenna ports corresponding to the target signal, index information of antenna ports used for perception, index information of antenna ports used for communication, and index information of general antenna ports; or,

[0523] The CDM antenna port group number information includes at least one of the following:

[0524] the total number of CDM antenna port groups corresponding to the target signal, the number of CDM antenna port groups used for sensing, the number of CDM antenna port groups used for communication, and the number of general CDM antenna port groups, wherein the general CDM antenna port group includes antenna ports used for sensing and antenna ports used for communication, or includes a general CDM antenna port group including a general antenna port; or,

[0525] The CDM antenna port group index information includes at least one of the following:

[0526] Index information of all CDM antenna port groups corresponding to the target signal, index information of the CDM antenna port group for sensing, index information of the CDM antenna port group for communication, and index information of a general CDM antenna port group, where the general CDM antenna port group includes antenna ports for sensing and antenna ports for communication, or includes a general CDM antenna port group including a general antenna port;

[0527] The universal antenna port is an antenna port used for both perception and communication.

[0528] Optionally, the indication information for disabling OCC is used for at least one of the following:

[0529] Indicates that OCC mapping is not used within the same CDM antenna port group;

[0530] It is implicitly indicated that the CDM antenna port group used for sensing includes only one antenna port.

[0531] Optionally, the measurement configuration information includes at least one of the following:

[0532] Measured signal resource indication, measured number of signal resources, measured antenna port indication, measured CDM antenna port group indication, perception measurement quantity, and measurement result reporting configuration.

[0533] Optionally, the auxiliary information includes at least one of the following:

[0534] Number of data transmission layers, number of data transmission streams, number of channel ranks, transmit beam indication, receive beam indication, number of perception targets, location information of perception targets, direction information of perception targets relative to the second device, location information of the first device, and direction information of the first device relative to the second device.

[0535] 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.

[0536] Optionally, the target signal sent through at least two antenna ports in the first CDM antenna port group includes at least one of the following:

[0537] Signal generated based on pseudo-random PN sequence;

[0538] Generate pseudo-random based on ZC sequence;

[0539] A signal generated based on a chirp signal.

[0540] Optionally, at least one of an initial value, a primitive polynomial, a cyclic shift value, or a truncation position of the PN sequence is associated with the second information; or

[0541] At least one of the root sequence number or the cyclic shift value of the ZC sequence is associated with the second information; or

[0542] At least one of the frequency modulation slope or the starting frequency of the Chirp signal is associated with the second information;

[0543] The second information includes at least one of the following:

[0544] Perception area identifier, indication information on whether it is used for perception, perception service identifier, perception service type identifier, perception target identifier, tag 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.

[0545] Optionally, the device further includes:

[0546] The measurement module is used to perform perceptual measurement on the target signal to obtain a perceptual measurement result.

[0547] The above-mentioned communication perception device can reduce the complexity of perception measurement and communication.

[0548] In the embodiments of the present application, the communication sensing 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 may be a device other than a terminal. For example, the terminal may include but is not limited to the types of terminals listed in the embodiments of the present application, and the other devices may be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0549] The communication perception device provided in the embodiment of the present application can implement the various processes implemented in the method embodiment shown in Figure 5 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0550] Please refer to FIG. 19 , which is a structural diagram of a signal receiving device provided in an embodiment of the present application. As shown in FIG. 19 , the signal receiving device 1900 includes:

[0551] The execution module 1901 is configured to execute a receiving operation, wherein the receiving operation includes:

[0552] receiving a target signal sent by the first device through y antenna ports; or,

[0553] receiving a target signal sent by the first device through y antenna ports, and receiving, by the first device, the target signal sent through x antenna ports;

[0554] The target signal sent through y antenna ports is used for communication, and y is an integer greater than or equal to 1;

[0555] The target signal sent through x antenna ports is used for perception, where x is an integer greater than or equal to 1.

[0556] Optionally, the x antenna ports and the y antenna ports have a common antenna port, and the target signal sent by the common antenna port is used for perception and communication.

[0557] Optionally, the value of x is associated with at least one of the following:

[0558] Number of perceived targets and number of perception beams.

[0559] Optionally, the value of y is associated with at least one of the following:

[0560] Channel rank, number of devices supporting simultaneous communication, number of transmission layers, and system throughput.

[0561] Optionally, when x is greater than 1, the same receiving beam is used for the x antenna ports; or,

[0562] When x is greater than 1, the same spatial filter or spatial filter coefficient is used for the x antenna ports.

[0563] 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:

[0564] Based on different sequence generation;

[0565] Orthogonal cover code OCC mapping is not used;

[0566] The first CDM antenna port group includes antenna ports among the x antenna ports.

[0567] Optionally, the second CDM antenna port group including the antenna port among the x antenna ports includes only one antenna port.

[0568] Optionally, the x antenna ports include antenna ports in a third CDM antenna port group, and the y antenna ports include antenna ports in the third CDM antenna port group.

[0569] Optionally, the device further includes:

[0570] A receiving module, configured to receive first information sent by the first device, wherein the first information includes at least one of the following:

[0571] Configuration information, measurement configuration information, and auxiliary information of the target signal;

[0572] The auxiliary information is used to assist at least one of perception measurement and communication.

[0573] Optionally, the configuration information of the target signal includes at least one of the following:

[0574] Antenna port information, signal resource identification, waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction, quasi-co-location QCL relationship, cyclic prefix information.

[0575] Optionally, the antenna port information includes at least one of the following:

[0576] Antenna port number information, antenna port index information, CDM antenna port group number information, CDM antenna port group index information, and indication information for disabling orthogonal cover code OCC.

[0577] Optionally, the antenna port number information includes at least one of the following:

[0578] The total number of antenna ports corresponding to the target signal, the number of antenna ports used for sensing, the number of antenna ports used for communication, and the number of general antenna ports; or

[0579] The antenna port index information includes at least one of the following:

[0580] Index information of all antenna ports corresponding to the target signal, index information of antenna ports used for perception, index information of antenna ports used for communication, and index information of general antenna ports; or,

[0581] The CDM antenna port group number information includes at least one of the following:

[0582] the total number of CDM antenna port groups corresponding to the target signal, the number of CDM antenna port groups used for sensing, the number of CDM antenna port groups used for communication, and the number of general CDM antenna port groups, wherein the general CDM antenna port group includes antenna ports used for sensing and antenna ports used for communication, or includes a general CDM antenna port group including a general antenna port; or,

[0583] The CDM antenna port group index information includes at least one of the following:

[0584] Index information of all CDM antenna port groups corresponding to the target signal, index information of the CDM antenna port group for sensing, index information of the CDM antenna port group for communication, and index information of a general CDM antenna port group, where the general CDM antenna port group includes antenna ports for sensing and antenna ports for communication, or includes a general CDM antenna port group including a general antenna port;

[0585] The universal antenna port is an antenna port used for both perception and communication.

[0586] Optionally, the indication information for disabling OCC is used for at least one of the following:

[0587] Indicates that OCC mapping is not used within the same CDM antenna port group;

[0588] It is implicitly indicated that the CDM antenna port group used for sensing includes only one antenna port.

[0589] Optionally, the measurement configuration information includes at least one of the following:

[0590] Measured signal resource indication, measured number of signal resources, measured antenna port indication, measured CDM antenna port group indication, perception measurement quantity, and measurement result reporting configuration.

[0591] Optionally, the auxiliary information includes at least one of the following:

[0592] Number of data transmission layers, number of data transmission streams, number of channel ranks, transmit beam indication, receive beam indication, number of perception targets, location information of perception targets, direction information of perception targets relative to the second device, location information of the first device, and direction information of the first device relative to the second device.

[0593] 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.

[0594] Optionally, the target signal sent through at least two antenna ports in the first CDM antenna port group includes at least one of the following:

[0595] Signal generated based on pseudo-random PN sequence;

[0596] Generate pseudo-random based on ZC sequence;

[0597] A signal generated based on a chirp signal.

[0598] Optionally, at least one of an initial value, a primitive polynomial, a cyclic shift value, or a truncation position of the PN sequence is associated with the second information; or

[0599] At least one of the root sequence number or the cyclic shift value of the ZC sequence is associated with the second information; or

[0600] At least one of the frequency modulation slope or the starting frequency of the Chirp signal is associated with the second information;

[0601] The second information includes at least one of the following:

[0602] Perception area identifier, indication information on whether it is used for perception, perception service identifier, perception service type identifier, perception target identifier, tag 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.

[0603] The above-mentioned signal receiving device can reduce the complexity of perception measurement and communication.

[0604] The signal receiving device in the embodiment 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.

[0605] The signal receiving device provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in Figure 12 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0606] Optionally, as shown in FIG20 , an embodiment of the present application further provides a communication device 2000, comprising a processor 2001 and a memory 2002, wherein the memory 2002 stores a program or instruction that can be run on the processor 2001. For example, when the communication device 2000 is a first device, the program or instruction is executed by the processor 2001 to implement the various steps of the above-mentioned communication perception method embodiment and can achieve the same technical effect. When the communication device 2000 is a second device, the program or instruction is executed by the processor 2001 to implement the various steps of the above-mentioned signal receiving method embodiment and can achieve the same technical effect. To avoid repetition, they are not described here.

[0607] An embodiment of the present application further provides a communication device, including a processor and a communication interface, wherein the communication interface is configured to transmit a target signal through x antenna ports, the target signal transmitted through the x antenna ports being used for sensing, where x is an integer greater than or equal to 1; and transmit the target signal through y antenna ports, the target signal transmitted through the y antenna ports being used for communication, where y is an integer greater than or equal to 1. This communication device embodiment corresponds to the above-mentioned communication sensing method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment are applicable to this communication device embodiment and can achieve the same technical effects.

[0608] Specifically, Figure 21 is a schematic diagram of the hardware structure of a device that implements an embodiment of the present application, and the device is a first device or a second device.

[0609] The device 2100 includes but is not limited to: 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 at least some of the components of the processor 2110.

[0610] Those skilled in the art will appreciate that device 2100 may also include a power source (such as a battery) to power various components. The power source may be logically connected to processor 2110 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The device structure shown in FIG21 does not limit the device. The device may include more or fewer components than shown, or may combine certain components or arrange the components differently, which will not be described in detail here.

[0611] It should be understood that in an embodiment of the present application, the input unit 2104 may include a graphics processing unit (GPU) 21041 and a microphone 21042, and the graphics processing unit 21041 processes the image data of a static picture or video 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 a touch panel 21071 and at least one of 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. 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 repeated here.

[0612] In the embodiment of the present application, after receiving downlink data from the network-side device, the RF unit 2101 can transmit the data to the processor 2110 for processing. In addition, the RF unit 2101 can send uplink data to the network-side device. Generally, the RF unit 2101 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0613] 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, wherein the first storage area may store an operating system, applications 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 volatile and non-volatile memories. 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. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM). The memory 2109 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0614] Processor 2110 may include one or more processing units. Optionally, processor 2110 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 2110.

[0615] In this embodiment, the above device is taken as the first device, and the first device is taken as the terminal for illustration.

[0616] The radio frequency unit 2101 is used to send the target signal through x antenna ports, where the target signal sent through x antenna ports is used for perception, and x is an integer greater than or equal to 1; and to send the target signal through y 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.

[0617] Optionally, the x antenna ports and the y antenna ports have a common antenna port, and the target signal sent by the common antenna port is used for perception and communication.

[0618] Optionally, the value of x is associated with at least one of the following:

[0619] Number of perceived targets and number of perception beams.

[0620] Optionally, the value of y is associated with at least one of the following:

[0621] Channel rank, number of devices supporting simultaneous communication, number of transmission layers, and system throughput.

[0622] Optionally, when x is greater than 1, the x antenna ports use the same transmit beam; or,

[0623] When x is greater than 1, the x antenna ports use the same spatial filter or spatial filter coefficient.

[0624] Optionally, when x is greater than 1, the x antenna ports belong to different code division multiplexing (CDM) antenna port groups; or,

[0625] Among the x antenna ports, at least two antenna ports belong to the same CDM antenna port group.

[0626] 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:

[0627] Based on different sequence generation;

[0628] Orthogonal cover code OCC mapping is not used;

[0629] The first CDM antenna port group includes antenna ports among the x antenna ports.

[0630] Optionally, the second CDM antenna port group including the antenna port among the x antenna ports includes only one antenna port.

[0631] Optionally, the x antenna ports include antenna ports in a third CDM antenna port group, and the y antenna ports include antenna ports in the third CDM antenna port group.

[0632] Optionally, the radio frequency unit 2101 is further configured to:

[0633] Sending first information to a second device, where the first information includes at least one of the following:

[0634] Configuration information, measurement configuration information, and auxiliary information of the target signal;

[0635] The auxiliary information is used to assist at least one of perception measurement and communication.

[0636] Optionally, the configuration information of the target signal includes at least one of the following:

[0637] Antenna port information, signal resource identification, signal usage, waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction, quasi-co-site QCL relationship, and cyclic prefix information.

[0638] Optionally, the antenna port information includes at least one of the following:

[0639] Antenna port number information, antenna port index information, CDM antenna port group number information, CDM antenna port group index information, and indication information for disabling orthogonal cover code OCC.

[0640] Optionally, the antenna port number information includes at least one of the following:

[0641] The total number of antenna ports corresponding to the target signal, the number of antenna ports used for sensing, the number of antenna ports used for communication, and the number of general antenna ports; or

[0642] The antenna port index information includes at least one of the following:

[0643] Index information of all antenna ports corresponding to the target signal, index information of antenna ports used for perception, index information of antenna ports used for communication, and index information of general antenna ports; or,

[0644] The CDM antenna port group number information includes at least one of the following:

[0645] the total number of CDM antenna port groups corresponding to the target signal, the number of CDM antenna port groups used for sensing, the number of CDM antenna port groups used for communication, and the number of general CDM antenna port groups, wherein the general CDM antenna port group includes antenna ports used for sensing and antenna ports used for communication, or includes a general CDM antenna port group including a general antenna port; or,

[0646] The CDM antenna port group index information includes at least one of the following:

[0647] Index information of all CDM antenna port groups corresponding to the target signal, index information of the CDM antenna port group for sensing, index information of the CDM antenna port group for communication, and index information of a general CDM antenna port group, where the general CDM antenna port group includes antenna ports for sensing and antenna ports for communication, or includes a general CDM antenna port group including a general antenna port;

[0648] The universal antenna port is an antenna port used for both perception and communication.

[0649] Optionally, the indication information for disabling OCC is used for at least one of the following:

[0650] Indicates that OCC mapping is not used within the same CDM antenna port group;

[0651] It is implicitly indicated that the CDM antenna port group used for sensing includes only one antenna port.

[0652] Optionally, the measurement configuration information includes at least one of the following:

[0653] Measured signal resource indication, measured number of signal resources, measured antenna port indication, measured CDM antenna port group indication, perception measurement quantity, and measurement result reporting configuration.

[0654] Optionally, the auxiliary information includes at least one of the following:

[0655] Number of data transmission layers, number of data transmission streams, number of channel ranks, transmit beam indication, receive beam indication, number of perception targets, location information of perception targets, direction information of perception targets relative to the second device, location information of the first device, and direction information of the first device relative to the second device.

[0656] 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.

[0657] Optionally, the target signal sent through at least two antenna ports in the first CDM antenna port group includes at least one of the following:

[0658] Signal generated based on pseudo-random PN sequence;

[0659] Generate pseudo-random based on ZC sequence;

[0660] A signal generated based on a chirp signal.

[0661] Optionally, at least one of an initial value, a primitive polynomial, a cyclic shift value, or a truncation position of the PN sequence is associated with the second information; or

[0662] At least one of the root sequence number or the cyclic shift value of the ZC sequence is associated with the second information; or

[0663] At least one of the frequency modulation slope or the starting frequency of the Chirp signal is associated with the second information;

[0664] The second information includes at least one of the following:

[0665] Perception area identifier, indication information on whether it is used for perception, perception service identifier, perception service type identifier, perception target identifier, tag 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.

[0666] Optionally, the radio frequency unit 2101 is also used to

[0667] Performing perceptual measurement on the target signal to obtain a perceptual measurement result.

[0668] The above-mentioned device can reduce the complexity of perception measurement and communication.

[0669] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the above-mentioned perception measurement result sending method and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0670] It should be noted that the above-mentioned device can also implement the steps in the method shown in Figure 12, or can implement the method executed by each module shown in Figure 19.

[0671] The present application also provides an embodiment of a device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown in FIG12 . This device embodiment corresponds to the above-mentioned signal receiving method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this device embodiment and can achieve the same technical effects.

[0672] An embodiment of the present application also provides a device, including a processor and a communication interface, wherein 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 a target signal sent by the first device through y antenna ports, and the first device receiving the target signal sent through x antenna ports; wherein the target signal sent through y antenna ports is used for communication, y is an integer greater than or equal to 1; the target signal sent through x antenna ports is used for perception, and x is an integer greater than or equal to 1.

[0673] Specifically, an embodiment of the present application further provides a device, which is a first device or a second device. As shown in Figure 22, 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 via 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. The radio frequency device 2202 processes the received information and sends it through the antenna 2201.

[0674] The perception measurement method in the above embodiment may be implemented in the baseband device 2203 , which includes a baseband processor.

[0675] The baseband device 2203 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 22, one of which 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 embodiment.

[0676] The device may further include a network interface 2206, such as a Common Public Radio Interface (CPRI).

[0677] Specifically, the device 2200 of the embodiment of the present application also includes: instructions or programs stored in the memory 2205 and executable on the processor 2204. The processor 2204 calls the instructions or programs in the memory 2205 to execute the methods executed by the modules shown in FIG19 and achieve the same technical effect. To avoid repetition, they will not be elaborated here.

[0678] In this embodiment, the above device is taken as an example for description as the second device.

[0679] The radio frequency device 2202 is configured to perform a receiving operation, wherein the receiving operation includes:

[0680] receiving a target signal sent by the first device through y antenna ports; or,

[0681] receiving a target signal sent by the first device through y antenna ports, and receiving, by the first device, the target signal sent through x antenna ports;

[0682] The target signal sent through y antenna ports is used for communication, and y is an integer greater than or equal to 1;

[0683] The target signal sent through x antenna ports is used for perception, where x is an integer greater than or equal to 1.

[0684] Optionally, the x antenna ports and the y antenna ports have a common antenna port, and the target signal sent by the common antenna port is used for perception and communication.

[0685] Optionally, the value of x is associated with at least one of the following:

[0686] Number of perceived targets and number of perception beams.

[0687] Optionally, the value of y is associated with at least one of the following:

[0688] Channel rank, number of devices supporting simultaneous communication, number of transmission layers, and system throughput.

[0689] Optionally, when x is greater than 1, the same receiving beam is used for the x antenna ports; or,

[0690] When x is greater than 1, the same spatial filter or spatial filter coefficient is used for the x antenna ports.

[0691] 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:

[0692] Based on different sequence generation;

[0693] Orthogonal cover code OCC mapping is not used;

[0694] The first CDM antenna port group includes antenna ports among the x antenna ports.

[0695] Optionally, the second CDM antenna port group including the antenna port among the x antenna ports includes only one antenna port.

[0696] Optionally, the x antenna ports include antenna ports in a third CDM antenna port group, and the y antenna ports include antenna ports in the third CDM antenna port group.

[0697] Optionally, the radio frequency device 2202 is further configured to:

[0698] Receive first information sent by the first device, where the first information includes at least one of the following:

[0699] Configuration information, measurement configuration information, and auxiliary information of the target signal;

[0700] The auxiliary information is used to assist at least one of perception measurement and communication.

[0701] Optionally, the configuration information of the target signal includes at least one of the following:

[0702] Antenna port information, signal resource identification, waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction, quasi-co-location QCL relationship, cyclic prefix information.

[0703] Optionally, the antenna port information includes at least one of the following:

[0704] Antenna port number information, antenna port index information, CDM antenna port group number information, CDM antenna port group index information, and indication information for disabling orthogonal cover code OCC.

[0705] Optionally, the antenna port number information includes at least one of the following:

[0706] The total number of antenna ports corresponding to the target signal, the number of antenna ports used for sensing, the number of antenna ports used for communication, and the number of general antenna ports; or

[0707] The antenna port index information includes at least one of the following:

[0708] Index information of all antenna ports corresponding to the target signal, index information of antenna ports used for perception, index information of antenna ports used for communication, and index information of general antenna ports; or,

[0709] The CDM antenna port group number information includes at least one of the following:

[0710] the total number of CDM antenna port groups corresponding to the target signal, the number of CDM antenna port groups used for sensing, the number of CDM antenna port groups used for communication, and the number of general CDM antenna port groups, wherein the general CDM antenna port group includes antenna ports used for sensing and antenna ports used for communication, or includes a general CDM antenna port group including a general antenna port; or,

[0711] The CDM antenna port group index information includes at least one of the following:

[0712] Index information of all CDM antenna port groups corresponding to the target signal, index information of the CDM antenna port group for sensing, index information of the CDM antenna port group for communication, and index information of a general CDM antenna port group, where the general CDM antenna port group includes antenna ports for sensing and antenna ports for communication, or includes a general CDM antenna port group including a general antenna port;

[0713] The universal antenna port is an antenna port used for both perception and communication.

[0714] Optionally, the indication information for disabling OCC is used for at least one of the following:

[0715] Indicates that OCC mapping is not used within the same CDM antenna port group;

[0716] It is implicitly indicated that the CDM antenna port group used for sensing includes only one antenna port.

[0717] Optionally, the measurement configuration information includes at least one of the following:

[0718] Measured signal resource indication, measured number of signal resources, measured antenna port indication, measured CDM antenna port group indication, perception measurement quantity, and measurement result reporting configuration.

[0719] Optionally, the auxiliary information includes at least one of the following:

[0720] Number of data transmission layers, number of data transmission streams, number of channel ranks, transmit beam indication, receive beam indication, number of perception targets, location information of perception targets, direction information of perception targets relative to the second device, location information of the first device, and direction information of the first device relative to the second device.

[0721] 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.

[0722] Optionally, the target signal sent through at least two antenna ports in the first CDM antenna port group includes at least one of the following:

[0723] Signal generated based on pseudo-random PN sequence;

[0724] Generate pseudo-random based on ZC sequence;

[0725] A signal generated based on a chirp signal.

[0726] Optionally, at least one of an initial value, a primitive polynomial, a cyclic shift value, or a truncation position of the PN sequence is associated with the second information; or

[0727] At least one of the root sequence number or the cyclic shift value of the ZC sequence is associated with the second information; or

[0728] At least one of the frequency modulation slope or the starting frequency of the Chirp signal is associated with the second information;

[0729] The second information includes at least one of the following:

[0730] Perception area identifier, indication information on whether it is used for perception, perception service identifier, perception service type identifier, perception target identifier, tag 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.

[0731] The above-mentioned device can reduce the complexity of perception measurement and communication.

[0732] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the above-mentioned method embodiment and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0733] It should be noted that the above-mentioned device can also implement the steps in the method shown in Figure 5, or can implement the method executed by each module shown in Figure 18.

[0734] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned communication perception method or signal receiving method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0735] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0736] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned communication perception method or signal receiving method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0737] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0738] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned communication perception method or signal reception method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0739] An embodiment of the present application further provides a wireless communication system, including: a first device and a second device, wherein the first device can be used to execute the steps of the communication perception method provided in the embodiment of the present application, and the second device can be used to execute the steps of the signal receiving method provided in the embodiment of the present application.

[0740] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising 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, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0741] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0742] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A communication sensing method, wherein: include: The first device sends 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; 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 of claim 1, wherein: The x antenna ports and the y antenna ports have a common antenna port, and the target signal sent by the common antenna port is used for perception and communication.

3. The method according to claim 1 or 2, wherein: The value of x is associated with at least one of the following: The number of perceived targets and the number of perception beams.

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

5. The method according to any one of claims 1 to 4, wherein: When x is greater than 1, the x antenna ports use the same transmit beam; or, When x is greater than 1, the x antenna ports use the same spatial domain filter or spatial domain filter coefficient.

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

7. The method according to any one of claims 1 to 6, wherein: 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: Based on different sequence generation; Orthogonal cover code OCC mapping is not used; The first CDM antenna port group includes antenna ports among the x antenna ports.

8. The method according to any one of claims 1 to 7, wherein: The second CDM antenna port group including an antenna port among the x antenna ports includes only one antenna port.

9. The method according to any one of claims 1 to 8, wherein: The x antenna ports include antenna ports in a third CDM antenna port group, and the y antenna ports include antenna ports in the third CDM antenna port group.

10. The method according to any one of claims 1 to 9, wherein: The method further comprises: The first device sends first information to the second device, wherein the first information includes at least one of the following: Configuration information, measurement configuration information, and auxiliary information of the target signal; The auxiliary information is used to assist at least one of perception measurement and communication.

11. The method of claim 10, wherein: The configuration information of the target signal includes at least one of the following: Antenna port information, signal resource identification, signal usage, waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting 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 of claim 11, wherein: The antenna port information includes at least one of the following: Antenna port number information, antenna port index information, CDM antenna port group number information, CDM antenna port group index information, and indication information for disabling orthogonal cover code OCC.

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

14. The method of claim 13, wherein: The indication information for disabling OCC is used for at least one of the following: Indicates that OCC mapping is not used in the same CDM antenna port group; It is implicitly indicated that the CDM antenna port group used for sensing includes only 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: Measured signal resource indication, measured signal resource number, measured antenna port indication, measured CDM antenna port group indication, perception measurement quantity, and 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 number of channel ranks, 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 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 sent through at least two antenna ports in the first CDM antenna port group includes at least one of the following: A signal generated based on a pseudo-random PN sequence; Generate pseudo-random based on ZC sequence; Signal generated based on chirp signal; wherein at least one of an initial value, a primitive polynomial, a cyclic shift value or a truncation position of the PN sequence is associated with the second information; or At least one of a root sequence number or a cyclic shift value of the ZC sequence is associated with the second information; or At least one of the frequency modulation slope or the starting frequency of the Chirp signal is associated with the second information; The second information includes at least one of the following: Perception area identifier, indication information whether used for perception, perception service identifier, perception service type identifier, perception target identifier, tag identifier associated with the perception target, number of perception targets, perception measurement quantity identifier, device identifier involved 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.

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

20. A signal receiving method, wherein: include: The second device performs a receiving operation, where the receiving operation includes: receiving a target signal sent by the first device through y antenna ports; or, receiving a target signal sent by the first device through y antenna ports, and receiving by the first device the target signal sent through x antenna ports; 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 perception, where x is an integer greater than or equal to 1.

21. The method of claim 20, wherein: When x is greater than 1, the same receiving beam is used for the x antenna ports; or, When x is greater than 1, the same spatial domain filter or spatial domain filter coefficient is used for the x antenna ports.

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

23. A communication sensing device, wherein: include: A first sending module, configured to send a target signal through x antenna ports, wherein 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 second sending module is used 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.

24. The device of claim 23, wherein: When x is greater than 1, the x antenna ports use the same transmit beam; or, When x is greater than 1, the x antenna ports use the same spatial domain filter or spatial domain filter coefficient.

25. The device of claim 23 or 24, wherein: 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: Based on different sequence generation; Orthogonal cover code OCC mapping is not used; The first CDM antenna port group includes antenna ports among the x antenna ports.

26. The device according to any one of claims 23 to 25, wherein: The device also includes: The third sending module is configured to send first information to the second device, wherein the first information includes at least one of the following: Configuration information, measurement configuration information, and auxiliary information of the target signal; The auxiliary information is used to assist at least one of perception measurement and communication.

27. The device of any one of claims 23 to 26, wherein: The device also includes: The measurement module is used to perform perceptual measurement on the target signal to obtain a perceptual measurement result.

28. A signal receiving device, wherein: include: The execution module is used to execute a receiving operation, wherein the receiving operation includes: receiving a target signal sent by the first device through y antenna ports; or, receiving a target signal sent by the first device through y antenna ports, and receiving by the first device the target signal sent through x antenna ports; 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 perception, where x is an integer greater than or equal to 1.

29. The apparatus of claim 28, wherein: When x is greater than 1, the same receiving beam is used for the x antenna ports; or, When x is greater than 1, the same spatial domain filter or spatial domain filter coefficient is used for the x antenna ports.

30. The device of claim 28 or 29, wherein: The device also includes: A receiving module, configured to receive first information sent by the first device, wherein the first information includes at least one of the following: Configuration information, measurement configuration information, and auxiliary information of the target signal; The auxiliary information is used to assist at least one of perception measurement and communication.

31. A device, wherein: It includes a processor and a memory, the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, it implements the steps of the communication perception method as described in any one of claims 1 to 19, or when the program or instruction is executed by the processor, it implements the steps of the communication perception method as described in any one of claims 20 to 22.

32. A readable storage medium, wherein: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, it implements the steps of the communication perception method as described in any one of claims 1 to 19, or implements the steps of the communication perception method as described in any one of claims 20 to 22.

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