Signal sending method, sensing method, device and equipment

Abstract

The invention discloses a signal sending method, a sensing method, a device and equipment, and belongs to the field of communication, and the signal sending method comprises the steps that first equipment sends a first signal for sensing on a first frequency domain resource, and sends a second signal on a second frequency domain resource; wherein the time domain resource occupied by the first signal comprises the time domain resource occupied by the second signal, and the first signal sent on a third frequency domain resource and the second signal sent on the third frequency domain resource are subjected to code division multiplexing. The third frequency domain resource is the overlapped frequency domain resource of the first frequency domain resource and the second frequency domain resource.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of communication, and particularly relates to a signal sending method, a sensing method, an apparatus and a device. BACKGROUND

[0002] In order to improve sensing performance, a signal used for sensing often needs to occupy more time domain, such as making sensing meet sensing requirements by occupying more time domain. In some related technologies, for a scenario of multiple signal sending, the main technical means is time division multiplexing of multiple signals, and in the case that the multiple signals include a signal used for sensing, if the signal used for sensing occupying more time domain resources is time division multiplexed with other signals, a low communication rate is caused. SUMMARY

[0003] Embodiments of the present application provide a signal sending method, a sensing method, an apparatus and a device, which can solve the problem of low communication rate.

[0004] In a first aspect, a signal sending method is provided, comprising:

[0005] A first device sends a first signal used for sensing on a first frequency domain resource, and sends a second signal on a second frequency domain resource;

[0006] The time domain resource occupied by the first signal includes the time domain resource occupied by the second signal, the first signal sent on a third frequency domain resource is code division multiplexed with the second signal sent on the third frequency domain resource, and the third frequency domain resource is a frequency domain resource overlapping the first frequency domain resource and the second frequency domain resource.

[0007] In a second aspect, a sensing method is provided, comprising:

[0008] A second device performs sensing measurement on a first signal used for sensing sent by a first device on a first frequency domain resource;

[0009] The time domain resource occupied by the first signal includes the time domain resource occupied by the second signal, the first signal sent on a third frequency domain resource is code division multiplexed with the second signal sent on the third frequency domain resource, and the third frequency domain resource is a frequency domain resource overlapping the first frequency domain resource and the second frequency domain resource.

[0010] In a third aspect, a signal sending apparatus is provided, comprising:

[0011] A first sending module is configured to send a first signal used for sensing on a first frequency domain resource, and send a second signal on a second frequency domain resource;

[0012] The time domain resource occupied by the first signal includes the time domain resource occupied by the second signal, the first signal transmitted on the third frequency domain resource is code division multiplexed with the second signal transmitted on the third frequency domain resource, and the third frequency domain resource is a frequency domain resource overlapping the first frequency domain resource and the second frequency domain resource.

[0013] In a fourth aspect, a sensing device is provided, comprising:

[0014] a sensing module configured to perform sensing measurement on a first signal transmitted by a first device on a first frequency domain resource for sensing;

[0015] The time domain resource occupied by the first signal includes the time domain resource occupied by the second signal, the first signal transmitted on the third frequency domain resource is code division multiplexed with the second signal transmitted on the third frequency domain resource, and the third frequency domain resource is a frequency domain resource overlapping the first frequency domain resource and the second frequency domain resource.

[0016] In a fifth aspect, a communication device is provided, comprising a processor and a memory, the memory storing programs or instructions executable on the processor, and the programs or instructions are executed by the processor to implement the steps of the signal transmission method provided in the embodiments of the present application.

[0017] In a sixth aspect, a communication device is provided, comprising a processor and a communication interface, wherein the communication interface is configured to transmit a first signal for sensing on a first frequency domain resource and transmit a second signal on a second frequency domain resource; the time domain resource occupied by the first signal includes the time domain resource occupied by the second signal, the first signal transmitted on the third frequency domain resource is code division multiplexed with the second signal transmitted on the third frequency domain resource, and the third frequency domain resource is a frequency domain resource overlapping the first frequency domain resource and the second frequency domain resource.

[0018] In a seventh aspect, a communication device is provided, comprising a processor and a memory, the memory storing programs or instructions executable on the processor, and the programs or instructions are executed by the processor to implement the steps of the sensing method provided in the embodiments of the present application.

[0019] In an eighth aspect, a communication device is provided, comprising a processor and a communication interface, wherein the communication interface is configured to perform sensing measurement on a first signal transmitted by a first device on a first frequency domain resource for sensing; the time domain resource occupied by the first signal includes the time domain resource occupied by the second signal, the first signal transmitted on the third frequency domain resource is code division multiplexed with the second signal transmitted on the third frequency domain resource, and the third frequency domain resource is a frequency domain resource overlapping the first frequency domain resource and the second frequency domain resource.

[0020] In a ninth aspect, a readable storage medium is provided, and the readable storage medium stores a program or instructions, which are executed by a processor to implement steps of the signal sending method provided by the embodiments of the present application, or implement steps of the sensing method provided by the embodiments of the present application.

[0021] In a tenth aspect, a wireless communication system is provided, and the wireless communication system includes a first device and a second device, the first device is configured to implement steps of the signal sending method provided by the embodiments of the present application, and the second device is configured to implement steps of the sensing method provided by the embodiments of the present application.

[0022] In an eleventh aspect, a chip is provided, and the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or instructions to implement the signal sending method provided by the embodiments of the present application, or implement the sensing method provided by the embodiments of the present application.

[0023] In a twelfth aspect, a computer program / program product is provided, and the computer program / program product is stored in a storage medium, and the computer program / program product is executed by at least one processor to implement steps of the signal sending method provided by the embodiments of the present application, or implement steps of the sensing method provided by the embodiments of the present application.

[0024] In the embodiments of the present application, the first device transmits a first signal for sensing on a first frequency domain resource, and transmits a second signal on a second frequency domain resource; wherein time domain resources occupied by the first signal include time domain resources occupied by the second signal, the first signal transmitted on a third frequency domain resource is code division multiplexed with the second signal transmitted on the third frequency domain resource, and the third frequency domain resource is a frequency domain resource overlapping the first frequency domain resource and the second frequency domain resource. In this way, since the first frequency domain resource and the second frequency domain resource have the overlapping third frequency domain resource, and the time domain resources occupied by the first signal include the time domain resources occupied by the second signal, the first signal transmitted on the third frequency domain resource is code division multiplexed with the second signal transmitted on the third frequency domain resource, so that the time domain resources occupied by the first signal and the second signal on the third frequency domain resource can have the same time domain resources, that is, the first signal and the second signal are simultaneously transmitted on the same time domain resources, and then the communication rate is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 FIG. 1 is a block diagram of a wireless communication system to which embodiments of the present application can be applied;

[0026] Figure 2 FIG. 2 is a scenario diagram of measurement provided by the embodiments of the present application;

[0027] Figure 3 is another measurement scenario provided by the embodiments of the present application;

[0028] Figure 4 is a flowchart of a signal sending method provided by the embodiments of the present application;

[0029] Figure 5 is a schematic diagram of signal frequency domain resources provided by the embodiments of the present application;

[0030] Figure 6a and Figure 6b is another measurement scenario provided by the embodiments of the present application;

[0031] Figure 7 is a schematic diagram of area division provided by the embodiments of the present application;

[0032] Figure 8 is another schematic diagram of area division provided by the embodiments of the present application;

[0033] Figure 9 is a flowchart of a sensing method provided by the embodiments of the present application;

[0034] Figure 10 is a schematic diagram of signal occupied resources provided by the embodiments of the present application;

[0035] Figure 11 is a schematic diagram of resource mapping provided by the embodiments of the present application;

[0036] Figure 12 is a schematic diagram of sequence mapping provided by the embodiments of the present application;

[0037] Figure 13 is a schematic diagram of sequence mapping provided by the embodiments of the present application;

[0038] Figure 14 is a schematic diagram of port mapping provided by the embodiments of the present application;

[0039] Figure 15 is another schematic diagram of port mapping provided by the embodiments of the present application;

[0040] Figure 16 is a schematic diagram of sequence mapping provided by the embodiments of the present application;

[0041] Figure 17 is a schematic diagram of sequence mapping provided by the embodiments of the present application;

[0042] Figure 18 is a schematic diagram of sequence mapping provided by the embodiments of the present application;

[0043] Figure 19 FIG. 1 is a schematic diagram of a signal sending device according to an embodiment of the present application;

[0044] Figure 20 FIG. 2 is a schematic diagram of a sensing device according to an embodiment of the present application;

[0045] Figure 21 FIG. 3 is a structural diagram of a communication device according to an embodiment of the present application;

[0046] Figure 22 FIG. 4 is a structural diagram of another communication device according to an embodiment of the present application;

[0047] Figure 23 FIG. 5 is a structural diagram of another communication device according to an embodiment of the present application. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0049] The terms "first", "second", and the like in the present 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 can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein, and the objects distinguished by "first", "second" are generally of a kind and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in the present application means at least one of the connected objects. For example, "A or B" covers three schemes, namely, scheme one: including A and not including B; scheme two: including B and not including A; scheme three: including A and including B. The character " / " generally represents that the objects before and after are in an "or" relationship.

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

[0051] It is worth noting that the technology described in the embodiments of the present application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, 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 described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following describes a New Radio (NR) system for the purpose of example, and 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 6th Generation (6G) communication systems. th

[0052] Figure 1 ​A block diagram of a wireless communication system to which embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a terminal-side device such as a mobile phone, a Tablet Personal Computer, a Laptop Computer, a notebook, a Personal Digital Assistant (PDA), a palmtop computer, a netbook, an Ultra-mobile Personal Computer (UMPC), a Mobile Internet Device (MID), an Augmented Reality (AR) device, a Virtual Reality (VR) device, a robot, a wearable device, a flight vehicle, a Vehicle User Equipment (VUE), a shipboard device, a Pedestrian User Equipment (PUE), a smart home (a home device with a wireless communication function such as a refrigerator, a television, a washing machine, or furniture), a game machine, a Personal Computer (PC), a kiosk, or a self-service machine. The wearable device includes a smart watch, a smart bracelet, a smart earphone, smart glasses, smart jewelry (a smart bracelet, a smart necklace, a smart ring, a smart necklace, a smart anklet, a smart necklace, and the like), a smart wristband, smart clothing, and the like. The vehicle-mounted device can also be referred to as a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application.

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

[0054] The core network device can include, but is not limited to, at least one of the following: a core network node, a core network function, a mobility management entity (MME), an access and mobility management function (AMF), a session management function (SMF), a user plane function (UPF), a policy control function (PCF), a policy and charging rules function (PCRF), an edge application server discovery function (EASDF), a unified data management (UDM), a unified data repository (UDR), a home subscriber server (HSS), a centralized network configuration (CNC), a network repository function (NRF), a network exposure function (NEF), a local NEF (or L-NEF), a binding support function (BSF), an application function (AF), a location management function (LMF), a gateway mobile location centre (GMLC), a network data analytics function (NWDAF), and the like. It should be noted that only the core network device in the NR system is taken as an example for introduction in the embodiments of the present application, and the specific type of the core network device is not limited.

[0055] In some embodiments, the network side device and the terminal can have sensing capability in addition to communication capability. The sensing capability, i.e., one or more devices having the sensing capability, can be capable of sensing the position, distance, speed, etc. of a target object, or detecting, tracking, identifying, imaging, etc. a target object, event or environment, etc. through transmission and reception of wireless signals. Some sensing functions and application scenarios are shown in Table 1:

[0056] Table 1

[0057]

[0058]

[0059] It should be noted that the sensing categories shown in Table 1 above are only an example, and the categories of sensing measurement in the embodiments of the present application are not limited.

[0060] In addition, the embodiments of the present application can be applied to a communication-sensing integrated scenario. The communication-sensing integration refers to integration of communication and sensing functions through spectrum sharing and hardware sharing in the same system. The system can sense the position, distance, speed, etc. while transmitting information, and detect, track, identify a target device or event. The communication system and the sensing system complement each other to improve the overall performance and bring better service experience.

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

[0062] In the embodiments of the present application, according to the differences between the sensing signal transmission node and the reception node, the following six sensing links can be included but are not limited to them. Figure 2 It should be noted that Figure 2 each sensing link in the above table is exemplified by one transmission node and one reception node. In actual systems, different sensing links can be selected according to different sensing requirements. The transmission node and the reception node of each sensing link can be one or more, and the actual sensing system can include multiple different sensing links. Figure 2 The sensing targets in the above table are exemplified by people and vehicles, and it is assumed that people and vehicles do not carry or install signal receiving / transmitting devices. The sensing targets in actual scenarios will be more diverse.

[0063] Sensing link 1: base station self-transmission and self-reception sensing. In this mode, the base station transmits a sensing signal, and obtains a sensing result by receiving the echo of the sensing signal.

[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 to obtain the sensing result.

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

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

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

[0068] Sensing link 6: inter-terminal sidelink sensing. For example, terminal 2 receives the sensing signal sent by terminal 1 to obtain the sensing result, or terminal 1 receives the sensing signal sent by terminal 2 to obtain the sensing result.

[0069] In some embodiments, the signaling transmission between the wireless access network device and the terminal, between different terminals, is through the radio resource control (RRC) signaling or the medium access control control element (MAC CE) or layer 1 signaling or other newly defined sensing signaling; the signaling transmission between the sensing network function and the terminal can be through the non-access layer (NAS) signaling (forwarded through the AMF) or through the RRC signaling or the MAC CE or the layer 1 signaling or other newly defined sensing signaling; the interaction between the sensing network function and the base station can be forwarded to the wireless access network through the N2 interface by the AMF; or the core network sensing network function is sent to the UPF, and the UPF is sent to the wireless access network through the N3 interface; or it is sent to the wireless access network (such as the base station) through a newly defined interface; the signaling transmission between the wireless access network devices can be through the Xn interface.

[0070] In some embodiments, the sensing network function can also be called a sensing network element or a sensing management function (Sensing MF), which can be on the RAN side or the core network side, refers to a network node in the core network or RAN responsible for at least one of the functions of sensing request processing, sensing resource scheduling, sensing information interaction, sensing data processing, etc., which can be based on the upgrade of AMF or LMF in the mobile communication network, or other network nodes or newly defined network nodes. Specifically, the function characteristics of the sensing network function / sensing network element can include at least one of the following:

[0071] The target information is exchanged with a wireless signal transmitting 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 auxiliary data, a perception measurement type, and perception resource configuration information, so that the wireless signal measuring device transmits a target perception result or a value of a perception measurement (an uplink measurement or a downlink measurement); the wireless signal can also be referred to as a perception signal.

[0072] The perception method used is determined according to a type of the perception service, information of a perception service consumer, required perception QoS requirement information, a perception capability of the wireless signal transmitting device, and a perception capability of the wireless signal measuring device, and the perception method can include: wireless access network device A transmits and wireless access network device B receives, or a wireless access network device transmits and a terminal receives, or wireless access network device A transmits and receives by itself, or a terminal transmits and a wireless access network device receives, or a terminal transmits and receives by itself, or terminal A transmits and terminal B receives, and the like.

[0073] The perception device serving the perception service is determined according to a type of the perception service, information of a perception service consumer, required perception QoS requirement information, a perception capability of the wireless signal transmitting device, and a perception capability of the wireless signal measuring device, and the perception device includes the wireless signal transmitting device or the wireless signal measuring device.

[0074] Overall coordination and scheduling of resources required for the perception service are managed, such as corresponding configuration of perception resources of the wireless access network device or the terminal;

[0075] Data processing is performed on a value of the perception measurement, or a perception result is obtained by calculation. The perception result can also be verified, and perception accuracy can be estimated.

[0076] In some embodiments, radars can be divided into single-base radars and double / multi-base radars according to whether the transmitter and the receiver are separated. The double-base radar generally requires that the transmitting and receiving antennas are far apart, and the distance is comparable to the radar action distance. Among them, the external radiation source radar is a special case of the double-base radar, which uses related electromagnetic wave detection theory and signal processing technology to obtain non-cooperative electromagnetic signals transmitted by a third party (such as a communication base station), and realizes the detection, positioning, tracking and identification of the target. It is also called passive radar, double / multi-base passive radar, passive radar, non-cooperative radiation source radar or non-cooperative passive detection system.

[0077] Among them, the double-base radar perception result calculation generally needs to be based on reference channel (direct path) signals and monitoring channel (reflected path) signals, and a typical double-base radar architecture diagram is shown in FIG. Figure 3 T ​R is the distance from the signal transmitter (Tx) to the target R L is the baseline distance, and θ T is the angle of the target relative to the signal transmitter R (θ R1 , θ R2 ) is the angle of the target relative to the signal receiver, and β is the bistatic angle.

[0078] In some embodiments, to improve the sensing performance, the relationship between the sensing requirement and the signal configuration can be as follows:

[0079] wherein the sensing resolution is associated with the signal resource length (bandwidth), and specifically can be as follows:

[0080] The relationship between the delay resolution Δτ and the sensing signal bandwidth B is as follows:

[0081] The relationship between the distance resolution ΔR and the sensing signal bandwidth B is as follows: for monostatic sensing, for bistatic sensing, c is the speed of light, and β is the bistatic angle.

[0082] The relationship between the Doppler resolution Δf d and the coherent processing window (also referred to as the coherent processing duration) T p (the time domain resource length of the target signal for each calculation of sensing information, for example, the time domain resource length corresponding to the range-Doppler map obtained by performing two-dimensional FFT operation) is as follows:

[0083] The relationship between the velocity resolution Δv and the coherent processing duration T p is as follows: for monostatic sensing, for bistatic sensing, λ is the signal wavelength, and β is the bistatic angle.

[0084] In some embodiments, to improve the sensing performance, the maximum unambiguous measurement range is associated with the signal resource interval, and at least one of the following relationships can exist:

[0085] The relationship between the maximum unambiguous delay τ max and the frequency domain resource interval Δf is as follows:

[0086] The relationship between the maximum unambiguous distance R max and the frequency domain resource interval Δf is as follows: for monostatic sensing, for bistatic sensing, c is the speed of light, and β is the bistatic angle.

[0087] The relationship between the maximum unambiguous Doppler R maxThe relationship between the frequency domain resource interval and the time domain resource interval ΔT is as follows:

[0088] Maximum unambiguous velocity v max The relationship between the frequency domain resource interval and the time domain resource interval ΔT is as follows: for single-base sensing, The velocity can be a radial velocity; for double-base sensing, The velocity can be a projection velocity on a double-base bisector, λ is a signal wavelength, and β is a double-base angle.

[0089] That is, when the frequency domain resource interval of a signal exceeds a certain value, ranging ambiguity occurs, and when the time domain resource interval exceeds a certain value, velocity / Doppler measurement ambiguity occurs.

[0090] The signal sending method, sensing method, device, and equipment provided by the embodiments of the present application will be described in detail below in combination with the accompanying drawings and some embodiments and application scenarios.

[0091] Please refer to Figure 4 , Figure 4 is a flowchart of a signal sending method provided by the embodiments of the present application, as shown in Figure 4 , including the following steps:

[0092] Step 401, a first device sends a first signal for sensing on a first frequency domain resource, and sends a second signal on a second frequency domain resource;

[0093] The time domain resource occupied by the first signal includes the time domain resource occupied by the second signal, the first signal sent on a third frequency domain resource is code division multiplexed with the second signal sent on the third frequency domain resource, and the third frequency domain resource is a frequency domain resource overlapping the first frequency domain resource and the second frequency domain resource.

[0094] The first device described above can be a terminal or a network side device.

[0095] The first device described above can send the first signal and the second signal to the same device, or can send the first signal or the second signal to different devices respectively.

[0096] The first signal described above can be sensed and measured by a second device based on the first signal, or can be sensed and measured by the first device based on a back echo signal of the first signal, that is, self-transmission and self-reception.

[0097] In the embodiments of the present application, the first signal can also be referred to as a sensing signal.

[0098] The second device described above can be a terminal or a network side device.

[0099] In some embodiments, the receiving device of the second signal can be the second device, or the receiving device of the second signal can be another device.

[0100] The first frequency domain resource can include one or more frequency domain resources, and the second frequency domain resource can include one or more frequency domain resources.

[0101] The third frequency domain resource is a frequency domain resource that overlaps the first frequency domain resource and the second frequency domain resource, where the overlap can be partial or complete overlap, for example, can include the three cases shown in Figure 5 Figure 5 The first frequency domain resource is represented by blue, and the second frequency domain resource is represented by yellow. The third frequency domain resource is the overlapping region of the two.

[0102] The first signal transmitted on the third frequency domain resource and the second signal transmitted on the third frequency domain resource can be code division multiplexed only on the third frequency domain resource, and the first signal and the second signal transmitted on other frequency domains are not code division multiplexed; or the first signal transmitted on the third frequency domain resource and the second signal transmitted on the third frequency domain resource are code division multiplexed, and the first signal and the second signal transmitted on other frequency domains are also code division multiplexed, which is not limited.

[0103] The time domain resource occupied by the first signal includes the time domain resource occupied by the second signal can be that the time domain resource occupied by the first signal is the same as the time domain resource occupied by the second signal, or the time domain resource occupied by the second signal is a subset of the time domain resource occupied by the first signal. Alternatively, the time domain resource occupied by the first signal includes the time domain resource occupied by the second signal can also be understood as a time domain resource conflict between the first signal and the second signal.

[0104] In some embodiments, the first signal can include at least one of the following:

[0105] A dedicated sensing signal, for example, a sensing signal generated based on a Chirp or Frequency Modulated Continuous Wave (FMCW) signal, or a sensing signal generated based on a Pseudo-Random (PN) sequence, a ZC sequence, or other Constant Amplitude Zero Auto-Correlation (CAZAC) sequence, etc.

[0106] ​a reference signal, such as a Demodulation Reference Signal (DMRS), a Channel State Information Reference Signal (CSI-RS), a Sounding Reference Signal (SRS), a Positioning Reference Signal (PRS), or the like;

[0107] a synchronization signal, such as a Primary Synchronization Signal (PSS) or a Secondary Synchronization Signal (SSS);

[0108] a signal carrying communication data, such as a Physical downlink shared channel (PDSCH), a Physical Uplink Shared Channel (PUSCH), a Physical Downlink Control Channel (PDCCH), a Physical Uplink Control Channel (PUCCH), or the like.

[0109] In some embodiments, in a case where the first signal is a dedicated sensing signal, the first signal can be a signal for sensing generated based on a Pseudo-Noise (PN) sequence.

[0110] The second signal can include at least one of the following:

[0111] a signal for sensing, a signal for communication.

[0112] The signal for sensing can refer to the first signal, which will not be described herein.

[0113] The signal for communication (which can be referred to as a communication signal) can include a signal for channel estimation, a signal for channel sounding, a signal for synchronization, or a signal for positioning of a communication device, and can include at least one of the following:

[0114] at least one of CSI-RS, DMRS, Tracking Reference Signal (TRS), Phase Tracking Reference Signal (PT-RS), SRS, PSS, SSS, PRS.

[0115] In the embodiments of the present application, since the first frequency domain resource and the second frequency domain resource have the third frequency domain resource in common, and the time domain resource occupied by the first signal includes the time domain resource occupied by the second signal, the first signal transmitted on the third frequency domain resource is code division multiplexed with the second signal transmitted on the third frequency domain resource, so that the same time domain resource occupied by the first signal and the second signal on the third frequency domain resource can be realized, that is, the first signal and the second signal are simultaneously transmitted on the same time domain resource, thereby improving the communication rate.

[0116] The embodiments of the present application can be applied to the following scenarios:

[0117] Scenario one, the scenario is single-base sensing, which can be as shown in Figure 6a In this scenario, the first device transmits the first signal and receives the echo signal thereof, and the first device transmits the second signal (such as a communication signal), and the second device receives the second signal; or the first device transmits the first signal and the second signal (a sensing signal) and receives the echo signal; the first device receives the signal configuration information or the sensing requirement information of the first signal transmitted by the fifth device, and the second device receives the configuration information of the second signal transmitted by the first device.

[0118] Scenario one, the scenario is double-base sensing, which can be as shown in Figure 6b In this scenario, the first device transmits the first signal and the second signal (such as a communication signal), and the second device receives the first signal and the second signal; or the first device transmits the first signal and the second signal (such as a sensing signal), and the second device receives the first signal and the second signal; the first device or the second device receives the signal configuration information or the sensing requirement information of the first signal or the second signal transmitted by the fifth device, and the second device receives the signal configuration information or the communication signal configuration information of the first signal or the second signal transmitted by the first device.

[0119] In the above two scenarios, the device receiving the first signal and the second signal (such as a communication signal or a sensing signal) can also be a different device.

[0120] In the single base station sensing and the double base station sensing scenarios, the first device and the second device can be a terminal or a network side device (such as a base station or a TRP), specifically, the first device can be a base station and the second device can be a terminal, or the first device can be a terminal and the second device can be a base station, or the first device and the second device can both be base stations, or the first device and the second device can both be terminals. The fifth device can be a core network sensing network function or a sensing network element, or can be another network side device or a terminal. That is, the first device is a signal sending device (for single base station sensing, it is also a sensing signal receiving device); the second device is a signal receiving device; and the fifth device is a device participating in the sensing service process but not performing signal sending or receiving.

[0121] As an optional implementation, the first frequency domain resource includes the second frequency domain resource, and the third frequency domain resource is equal to the second frequency domain resource.

[0122] In this implementation, the third frequency domain resource is the second frequency domain resource, for example, the second frequency domain resource is a subset of the first frequency domain resource.

[0123] In this way, the second signal can be sent on the frequency domain resource occupied by the first signal, so as to save resource overhead.

[0124] As an optional implementation, the base sequence of the first signal is the same as that of the second signal on the third frequency domain resource, and the OCC of the first signal is different from that of the second signal on the third frequency domain resource.

[0125] The base sequence can be a PN sequence or other sequences, such as a ZC sequence, and the PN sequence can be a QPSK PN sequence.

[0126] In this implementation, since the base sequence of the first signal is the same as that of the second signal, the base sequence overhead can be reduced, and since the OCC of the first signal is different from that of the second signal, the interference between the first signal and the second signal can be reduced.

[0127] In the above implementation, the first signal and the second signal occupy the same frequency domain resource unit on the third frequency domain resource.

[0128] In some implementations, a unified base sequence can be generated according to the maximum system bandwidth, and the second signal on the third frequency domain resource and the first signal on the first frequency domain resource are generated using the unified base sequence.

[0129] In some implementations, the second signal on the third frequency domain resource and the first signal on the third frequency domain resource belong to the same code division multiplexing (CDM) group, which may also be referred to as a CDM port group.

[0130] As an optional implementation manner, the generation parameter of the base sequence of the first signal or the second signal is associated with at least one of the following:

[0131] Perception service related information, information about devices involved in perception, frequency domain resource related information, time domain resource related information, spatial domain resource related information, and base sequence identification information.

[0132] The above generation parameter can be the initial value of the base sequence, such as the initial value c of the PN sequence. init .

[0133] The association of the above-mentioned generation parameter with the above-mentioned at least one item can be understood as that the generation parameter of the above-mentioned base sequence is generated or selected based on the above-mentioned at least one item.

[0134] The above-mentioned information related to the sensing service may include at least one of the following:

[0135] Perception measurement range identifier, perception area identifier, perception service identifier, perception service type, identifier of whether it is used for perception, perception target identifier, tag identifier associated with the perception target, number of perception targets, and perception measurement quantity information.

[0136] The above-mentioned perception measurement range identifier may indicate the range of the perception measurement area.

[0137] The above-mentioned perception area identifier may indicate a perception measurement area.

[0138] In some embodiments, the sensing area is a target area to be sensed, and may be divided in advance.

[0139] For example: multiple base station coverage areas (cells) form a perception area, associated with a perception area identifier n areaID ,like Figure 7 As shown, each hexagonal area represents a base station coverage area, and areas of the same color represent the same perception area. In particular, a RAN-based notification area (RNA) can be used as a perception area, and the RNA ID can be used as the perception area identifier.

[0140] For example, a single base station coverage area (cell) 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 FIG. 1, a base station covers a certain area, and the area is divided into a plurality of perception areas. Figure 8 The dashed line represents the coverage area of the base station, and each square represents a divided perception area.

[0141] For example, the area ID n is generated directly using a geographic area identifier, such as latitude and longitude or a coordinate position, which is independent of the base station position. areaID .

[0142] For example, different angle ranges relative to the base station are associated with different area IDs n areaID , for example, the azimuth angle x1°~x2° and the pitch angle y1°~y2° correspond to the perception area ID 1.

[0143] The identifier for whether it is used for perception can be n sensingID = 0 when it is not used for perception; and n sensingID = 1 when it is used for perception.

[0144] Different perception services correspond to different perception service identifiers ID n sensingID , or different categories correspond to different perception service identifiers ID n sensingID , for example: the perception function or service type is divided according to the range scale, for example:

[0145] The first type (short distance / small range): material analysis, component analysis, gesture recognition, lip reading, gait recognition, expression recognition, face recognition, respiratory monitoring, heart rate monitoring, pulse monitoring, etc.

[0146] The second type (medium distance / medium range): intrusion detection, quantity statistics, indoor positioning, etc.

[0147] The third type (long distance / large range): humidity / brightness / temperature / air pressure monitoring, air quality monitoring, weather condition monitoring, environment reconstruction, topography, building / vegetation distribution detection, people flow or vehicle flow detection, etc.

[0148] There can be other classification standards, such as dividing into positioning type perception, imaging type perception, and pattern recognition type perception according to functions; or dividing according to power consumption / energy consumption, dividing according to resource occupation, etc.

[0149] The above perception measurement quantity information can be a measurement quantity identifier, and at least one of the perception measurement quantities is associated with a measurement quantity identifier, for example, as shown in Table 2:

[0150] Table 2

[0151] Measurement ID Sensed Measurement ID1 Time delay / distance ID2 Doppler / velocity ID3 Angle ID4 Time delay / distance, Doppler / velocity ID4 Time delay / distance, Doppler / velocity, Angle … …

[0152] In some embodiments, the perception measurement quantity can be divided into the following types:

[0153] The first level measurement (also called received signal / raw channel information) includes at least one of the following:

[0154] The received signal / channel response complex result, amplitude / phase, I / Q and their related operation results (operations include addition / subtraction / multiplication / division, matrix addition / subtraction / multiplication, matrix transpose, trigonometric operation, square root operation, and power operation, etc., as well as threshold detection results of the above operation results, maximum / minimum value extraction results, etc.; wherein, the operations also include Fast Fourier Transform (FFT) / Inverse Fast Fourier Transform (IFFT), Discrete Fourier Transform (DFT) / Inverse Discrete Fourier Transform (IDFT), 2D-FFT, 3D-FFT, matched filtering, autocorrelation operation, wavelet transform, and digital filtering, etc., as well as threshold detection results of the above operation results, maximum / minimum value extraction results, etc.);

[0155] The second level measurement (also called basic measurement) includes at least one of the following: time delay, Doppler, angle, intensity, and their multi-dimensional combination representation; the multi-dimensional combination representation can be, for example, time delay-Doppler spectrum, or time delay-angle spectrum, or time delay-Doppler-angle spectrum;

[0156] The third level measurement (also called basic attribute / state) includes at least one of the following: distance, speed, orientation, spatial position, acceleration;

[0157] The fourth level measurement (also called advanced attribute / state) includes at least one of the following: whether the target exists, trajectory, action, expression, vital sign, quantity, imaging result, weather, air quality, shape, material, composition.

[0158] The label identification associated with the above-mentioned perceived target can be different for different perceived target identification n targetID Wherein, the determination of the perceived target can be based on prior information obtained from the existing measurement results, for example, the base station A sends a perceived measurement signal through an omnidirectional beam to perform preliminary measurement, the base station A obtains a distance-Doppler graph (or a distance-angle graph, etc.), determines the number of targets according to the distance-Doppler graph, and allocates an ID for each target; or, the base station A sends a perceived measurement signal through an omnidirectional beam to perform preliminary measurement, the receiving device (such as other base stations or terminals) obtains a distance-Doppler graph (or a distance-angle graph, etc.), determines the number of targets according to the distance-Doppler graph, and allocates an ID for each target, and then informs the sending base station of the target ID and / or target related information.

[0159] After the first device determines the ID of each sensing target, it generates signals for sensing different targets according to different sensing target IDs, and the sensing signals are sent in different beams, with the beam direction pointing to the sensing target associated with the target ID.

[0160] The above-mentioned identification of the sensing target can also be the identification of the sensing target type, different types corresponding to different identifications of the sensing target. For example, it is divided into stationary targets and moving targets, and the latter can be further divided into high-speed targets and low-speed targets. Different types of targets correspond to different n targetID .

[0161] In some embodiments, the sensing target is equipped with a tag (Tag), and different Tags are associated with different Tag IDs. The sending device obtains the Tag ID corresponding to the target, and then obtains the signal for sensing different targets. The Tag can be a device supporting backscatter communication, and its excitation source can be a device other than the Tag, or the excitation source is the Tag itself. It can also be a terminal, i.e. a normal transceiver module is installed on the sensing target, such as a communication device such as a vehicle terminal installed on a car.

[0162] Since the generation parameters of the base sequence of the first signal or the second signal are associated with the sensing service related information, the determined base sequence of the first signal or the second signal can be more easily matched with the sensing service, thereby improving the sensing performance.

[0163] The above-mentioned information of the device participating in sensing can be the identification of the device participating in sensing, such as the cell identification or terminal identification of the device, such as the radio network temporary identity (RNTI).

[0164] Since the generation parameters of the base sequence of the first signal or the second signal are associated with the information of the device participating in sensing, the first signal or the second signal can be more easily matched with the sensing, thereby improving the sensing performance.

[0165] The above-mentioned frequency domain resource related information can be related information of the above-mentioned first frequency domain resource, second frequency domain resource or third frequency domain resource, and can specifically include at least one of the following: RE index, RB index, frequency point information, frequency band information, bandwidth, frequency domain density, subcarrier spacing.

[0166] The above-mentioned time domain resource related information can be related information of the time domain resource of the above-mentioned first signal or second signal, and can specifically include at least one of the following:

[0167] a wireless frame index, a subframe index, a slot index, a symbol index, a time duration, a time domain density, a Cyclic Prefix (CP) type, a CP length, a coherent processing time window index, a coherent processing time window number;

[0168] The wireless frame index, the subframe index, the slot index, and the symbol index can be at least one of the following:

[0169] a wireless frame index and a subframe index defined by a communication system;

[0170] a relative wireless frame index and a relative subframe index within a sensing coherent processing time window / sensing resource block;

[0171] a symbol index within a slot

[0172] a symbol index within a coherent processing time window;

[0173] a symbol index within a sensing resource block;

[0174] a slot index within a wireless frame;

[0175] a slot index within a coherent processing time window;

[0176] a slot index within a sensing resource block.

[0177] The length of the coherent processing window can be a time domain resource length used for calculating a measurement result, for example, the coherent processing time window is a time window for calculating an output sensing measurement result each time, such as a time domain resource length corresponding to a distance-Doppler diagram obtained by performing two-dimensional FFT operation, and the coherent processing window can include multiple slots or symbols. In some embodiments, the length of the coherent processing window can be agreed upon by a protocol or a network side device, or informed by a device performing measurement, etc.

[0178] In some embodiments, the frequency domain resource related information or the time domain resource related information can further introduce a sensing resource block index, wherein the sensing resource block includes multiple Physical Resource Blocks (PRBs) and multiple slots or symbols, that is, the sensing resource block includes specific time-frequency domain resources, such as a frequency domain resource length and a time domain resource length corresponding to a distance-Doppler diagram obtained by performing two-dimensional FFT operation.

[0179] The spatial domain resource related information can be spatial domain resource related information of the first signal or the second signal, and the spatial domain resource related information can include at least one of the following:

[0180] Port index, port number, code division multiplexing (CDM) group index, CDM group number, antenna index, antenna group index, antenna subarray index, antenna panel index, maximum antenna number, maximum antenna group number, maximum antenna subarray number, maximum antenna panel number.

[0181] The port can be referred to as an antenna port, a logical port, or an antenna logical port.

[0182] Since the generation parameter of the base sequence of the first signal or the second signal is associated with the above-mentioned spatial domain resource related information, the determined first signal or second signal can be more easily matched with the spatial domain resource, thereby improving the sensing performance.

[0183] The base sequence identification information is used to indicate the base sequence of the first signal or the second signal. For example, the system directly configures identification information for generating the base sequence of the first signal or the second signal. The specific value of the identification information of the base sequence of the first signal or the second signal can be determined according to at least one of sensing service related information, information of a device participating in sensing, frequency domain resource related information, time domain resource related information, and spatial domain resource related information.

[0184] The generation parameter of the base sequence can be determined simply and directly through the above-mentioned base sequence identification information, so as to reduce the complexity of the device.

[0185] As an optional implementation, the method further includes at least one of the following:

[0186] The first device acquires signal configuration information of the first signal;

[0187] The first device acquires signal configuration information of the second signal;

[0188] The first device sends the signal configuration information of the first signal to the second device;

[0189] The first device sends the signal configuration information of the second signal to the second device.

[0190] The acquisition of the signal configuration information of the first signal or the second signal can be that the first device receives the signal configuration information of the first signal or the second signal sent by the second device or the fifth device. Or the first device can generate the signal configuration information of the first signal or the second signal.

[0191] In some embodiments, the signal configuration information of the first signal or the second signal can be associated with the perception requirement information. For example, the first device obtains the first perception requirement information and determines the signal configuration information of the first signal according to the first perception requirement information, and in the case that the second signal is used for perception, the first device obtains the second perception requirement information and determines the signal configuration information of the second signal according to the second perception requirement information. Since the signal configuration information is determined according to the perception requirement information, the perception can meet the perception requirement.

[0192] In some embodiments, the perception requirement information can include at least one of the following:

[0193] The perception service or the perception service type, wherein the perception service can include at least one of the following:

[0194] Detecting whether a target exists, positioning, speed detection, distance detection, angle detection, acceleration detection, material analysis, component analysis, shape detection, category division, radar cross section (RCS) detection, polarization scattering characteristic detection, fall detection, intrusion detection, quantity statistics, indoor positioning, gesture recognition, lip reading, gait recognition, expression recognition, face recognition, respiration monitoring, heart rate monitoring, pulse monitoring, humidity / brightness / temperature / air pressure monitoring, air quality monitoring, weather condition monitoring, environment reconstruction, topography, building / vegetation distribution detection, people flow or vehicle flow detection, crowd density or vehicle density detection, etc.; the perception service type can be a classification of a plurality of different perception services according to certain characteristics, for example, classified into detection type perception services (such as intrusion detection, fall detection), parameter estimation type perception services (distance, angle, speed calculation), recognition type perception services (action recognition, identity recognition), etc., and can also be classified according to the range of perception (short distance perception, medium distance perception, long distance perception), classified according to the degree of perception (coarse granularity perception, fine granularity perception, etc.), classified according to power consumption / energy consumption, classified according to resource occupation, etc.

[0195] The perception target area, which can refer to a position area where a perception object can exist, or a position area that needs to be imaged or environment reconstructed;

[0196] The perception object type, which can be a classification of perception objects according to possible motion characteristics of the perception objects, and each perception object type includes information such as motion speed, motion acceleration, and typical RCS of a typical perception object;

[0197] The perception QoS, which can be a performance indicator for perception of a perception target area or a perception object, and can include at least one of the following:

[0198] The perception resolution can be classified as: ranging resolution, angle resolution, speed resolution, imaging resolution, etc.

[0199] The perception accuracy can be classified as: ranging accuracy, angle accuracy, speed accuracy, positioning accuracy, etc.

[0200] The perception range can be classified as: ranging range, speed range, angle range, imaging range, etc.

[0201] The perception latency can be the time interval from the sending of the perception signal to the obtaining of the perception result, or the time interval from the initiation of the perception demand to the obtaining of the perception result.

[0202] The perception update rate is, for example, the time interval between two adjacent executions of the perception and the obtaining of the perception result.

[0203] The detection probability is, for example, the probability of being correctly detected in the presence of the perceived object.

[0204] The identification probability (for multi-element detection scenarios) is the probability of correctly detecting the state or category of the perceived target.

[0205] The false alarm probability is, for example, the probability of erroneously detecting the perceived target in the absence of the perceived object.

[0206] The maximum number of perceivable targets.

[0207] Thanks to the acquisition of the signal configuration information of the first signal or the second signal, the transmission of the first signal or the second signal can be performed based on the signal configuration information, so as to improve the transmission reliability of the first signal or the second signal and to improve the perception performance.

[0208] In some embodiments, the signal configuration information of the first signal and the signal configuration information of the second signal can be carried in the same message or the same configuration information, or the signal configuration information of the first signal and the signal configuration information of the second signal are carried in different messages or are independent signal configuration information.

[0209] In some embodiments, the signal configuration information of the first signal includes at least one of the following:

[0210] The base sequence related information of the first signal, the port related information of the first signal, and the first code division multiplexing information.

[0211] Or,

[0212] The signal configuration information of the second signal includes at least one of the following:

[0213] The base sequence related information of the second signal, the port related information of the second signal, and second code division multiplexing information.

[0214] The base sequence related information of the first signal can be information used to determine the base sequence of the first signal.

[0215] The base sequence related information of the second signal can be information used to determine the base sequence of the second signal.

[0216] Optionally, the base sequence related information of the first signal comprises at least one of:

[0217] correlation information of a generation parameter of the base sequence of the first signal;

[0218] a sequence type of the base sequence of the first signal;

[0219] a length of the base sequence of the first signal.

[0220] or,

[0221] The base sequence related information of the second signal comprises at least one of:

[0222] correlation information of a generation parameter of the base sequence of the second signal;

[0223] a sequence type of the base sequence of the second signal;

[0224] a length of the base sequence of the second signal.

[0225] The correlation information of the generation parameter of the base sequence of the first signal refers to the correlation information of a generation parameter used to generate or determine the base sequence of the first signal.

[0226] The correlation information of the generation parameter of the base sequence of the second signal refers to the correlation information of a generation parameter used to generate or determine the base sequence of the second signal.

[0227] The correlation information can comprise at least one of:

[0228] sensing service related information, information of a device participating in sensing, frequency domain resource related information, time domain resource related information, space domain resource related information, and base sequence identification information.

[0229] The at least one item can refer to the description of the corresponding embodiments above, which will not be repeated here.

[0230] The sequence type of the base sequence of the first signal or the second signal can comprise at least one of:

[0231] a cell-specific reference signal sequence, a region-specific reference signal sequence, and a terminal-specific reference signal sequence.

[0232] The cell-specific reference signal sequence can be a reference signal sequence generated for a single cell, or a reference signal sequence generated for multiple cells, e.g., the reference signal sequence is commonly used by the multiple cells, and the generation parameter of the reference signal sequence is associated with information of a cell in the multiple cells, e.g., the generation parameter is associated with a physical cell identifier (PCI) of a cell in the multiple cells.

[0233] The area-specific reference signal sequence can be a sensing area-specific reference signal sequence, e.g., the area can be a specific area covered by multiple base stations jointly sensing in a sensing area definition.

[0234] The cell-specific reference signal sequence or the area-specific reference signal sequence can reduce base sequence overhead.

[0235] The port-related information of the first signal or the second signal can be information used to indicate a port associated with the first signal or the second signal, e.g., antenna port information, logical port information, or antenna logical port information.

[0236] Optionally, the port-related information of the first signal includes at least one of the following:

[0237] first port quantity information, first port index information, an indication used to indicate whether a port corresponding to the first signal is occupied by the second signal, and port information of a port corresponding to the second signal and occupied by the first signal.

[0238] Or,

[0239] The port-related information of the second signal includes at least one of the following:

[0240] second port quantity information, second port index information, and an indication used to indicate whether a port corresponding to the second signal is occupied by the first signal.

[0241] The first port quantity information can include at least one of the following:

[0242] a total number of ports, a number of ports invalid for the first signal, a number of ports valid for the first signal, a number of ports used for sensing, a number of ports used for communication, and a number of general-purpose ports.

[0243] The second port quantity information can include at least one of the following:

[0244] a total number of ports, a number of ports invalid for the second signal, a number of ports valid for the second signal, a number of ports used for sensing, a number of ports used for communication, and a number of general-purpose ports.

[0245] The first total port number is a total port number corresponding to the first signal, such as the maximum port number supported in the signal configuration information of the first signal, and the total port number includes the port number for sensing and the port number for communication. Alternatively, the total port number in the first port number information can be a total port number of code division multiplexing, or the total port number in the first port number information is a total port number in a CDM group in which the first signal is located.

[0246] The second total port number is a total port number corresponding to the second signal, such as the maximum port number supported in the signal configuration information of the first signal, and the total port number includes the port number for sensing and the port number for communication. Alternatively, the total port number in the second port number information can be a total port number of code division multiplexing, or the total port number in the second port number information is a total port number in a CDM group in which the first signal is located.

[0247] In some embodiments, the first total port number and the second total port number can refer to the same total port number, such as a total port number when the first signal and the second signal are code division multiplexed, or the first total port number and the second total port number can be different total port numbers.

[0248] In some embodiments, the total port number in the first port number information and the total port number in the second port number information are the same total port number. For example, in the case of the second signal being DMRS, the total port number is 4 for single-symbol DMRS, and the total port number is 8 for double-symbol DMRS.

[0249] The number of ports invalid for the first signal can be understood as the number of ports not used for transmitting the first signal, such as the number of ports used for transmitting the second signal.

[0250] The number of ports valid for the first signal can be understood as the number of ports used for transmitting the first signal, for example, it can be the number of ports that can be used for transmitting the first signal after removing the number of ports invalid for the first signal.

[0251] The number of ports invalid for the second signal can be understood as the number of ports not used for transmitting the second signal. For example, when the second signal is a communication signal, because the communication signal is code division multiplexed with the first signal, part of the resources of the communication signal ports are allocated to the first signal, and this part of the ports is not available for the communication signal.

[0252] The number of ports valid for the second signal can be understood as the number of ports used for transmitting the second signal, for example, it can be the number of ports that can be used for transmitting the second signal after removing the number of ports invalid for the second signal.

[0253] The above general port number refers to the port number common to the first signal and the second signal, that is, the ports are used for transmission of the first signal and the second signal, such as ports used for sensing and communication at the same time.

[0254] The above port number information can enable better transmission of the first signal or the second signal between the first device and the second device, thereby improving signal transmission reliability.

[0255] The above indication for indicating whether the port corresponding to the first signal is occupied by the second signal can be understood as an indication of whether the port resource is occupied by the signal corresponding to the non-current signal configuration information (such as the signal configuration information of the second signal). For example, when different signals need to be code division multiplexed, the system defaults a specific port number or port index to be assigned to the signal corresponding to the non-current signal configuration information, and the receiving end can determine the allocation of the port resource through the indication, such as determining which ports are available or unavailable.

[0256] The above port information that the port corresponding to the second signal is occupied by the first signal can also be understood as information that the first signal occupies the port corresponding to the second signal, which can be the number of ports or port index information of the port corresponding to the second signal occupied by the first signal. For example, the first signal is code division multiplexed with the second signal (such as DMRS) on the third frequency domain resource, the first signal occupies the port p = 1000 of the second signal, and the sensing signal receiving device knows the code division multiplexing type of the first signal and the second signal on the third frequency domain resource, that is, FD-cdm2, and the occupied port index 1000 (different ports correspond to specific frequency domain resource unit positions and OCCs used), which can effectively solve the first signal on the third frequency domain resource.

[0257] The above port index information can be the actual port index (1000, 1001,...) of the port corresponding to the second signal occupied by the first signal, or an equivalent port index (0, 1, 2,...), wherein the equivalent port index is the port index corresponding to the actual port index of the occupied reference signal. For example, in the above example, 1000 corresponds to port 0, 1001 corresponds to port 1,...; if it is CSI-RS, it can be p = 3000 corresponding to the equivalent port index 0, 3001 corresponding to 1,.... Alternatively, the first signal can occupy by default according to the port index from small to large, or according to other preset rules, at which time the information of the occupied port does not need to be specially indicated, and only the port number of the first signal needs to be known.

[0258] The above port information that the port corresponding to the second signal is occupied by the first signal can enable the receiving device of the first signal to more reliably parse the first signal, thereby improving the transmission reliability of the first signal.

[0259] The indication indicating whether the port corresponding to the second signal is occupied by the first signal can be understood as an indication of whether a port resource is occupied by a signal corresponding to non-current signal configuration information (such as signal configuration information of the first signal).

[0260] The first port index information can include at least one of the following:

[0261] all port indexes, port indexes invalid for the first signal, port indexes valid for the first signal, port indexes for sensing, port indexes for communication, and general port indexes;

[0262] The second port index information can include at least one of the following:

[0263] all port indexes, port indexes invalid for the second signal, port indexes valid for the second signal, port indexes for sensing, port indexes for communication, and general port indexes.

[0264] The all port indexes can be indexes of all ports corresponding to the total number of ports, such as indexes of all ports available for the first signal and the second signal. Alternatively, the all port indexes can be indexes of all ports subjected to code division multiplexing, and the all port indexes can be indexes of all ports in a CDM group. In addition, the all port indexes can be understood as indexes of a plurality of ports available for transmission of the first signal and the second signal.

[0265] In some embodiments, the port indexes can be a list of port indexes, such as a list of all port indexes. For example, for a port, the list of indexes corresponding to the port is the index of the port. For example, for a port invalid for the second signal, the list of indexes invalid for the second signal is the index invalid for the second signal.

[0266] In some embodiments, the port index information can be actual port indexes (1000, 1001, …) or equivalent port indexes (0, 1, 2, …), wherein the equivalent port indexes are port indexes corresponding to occupied actual port indexes, for example, actual port index 1000 corresponds to port 0, actual port index 1001 corresponds to port 1, and so on. The use of equivalent port indexes can enable a unified set of port indexes to indicate occupied ports when the first signal is subjected to code division multiplexing with different second signals, thereby reducing the complexity of signal configuration information.

[0267] The port index information can enable accurate ports to be used for signal transmission between the first device and the second device, thereby improving signal transmission reliability.

[0268] The first code division multiplexing information or the second code division multiplexing information is used to indicate relevant information of code division multiplexing of the first signal and the second signal. For example, the first code division multiplexing information includes at least one of the following:

[0269] a code division multiplexing type, an indication for indicating code division multiplexing with the second signal.

[0270] or,

[0271] The second code division multiplexing information includes at least one of the following:

[0272] a code division multiplexing type, an indication for indicating code division multiplexing with the first signal.

[0273] The code division multiplexing type can include at least one of the following:

[0274] fd-CDM2, fd-CDM2 is a multiplexing of 2 ports on 2 REs of 2 subcarriers in the frequency domain and 1 OFDM symbol in the time domain;

[0275] cdm4-FD2-TD2, cdm4-FD2-TD2 is a multiplexing of 4 ports on 4 REs of 2 subcarriers in the frequency domain and 2 OFDM symbols in the time domain;

[0276] cdm8-FD2-TD4, cdm8-FD2-TD4 is a multiplexing of 8 ports on 8 REs of 2 subcarriers in the frequency domain and 4 OFDM symbols in the time domain.

[0277] The indication for indicating code division multiplexing with the second signal in the first code division multiplexing information can be understood as an indication for code division multiplexing with a signal corresponding to non-current signal configuration information (such as signal configuration information of the second signal), such as an indication for whether to code division multiplexing with the second signal.

[0278] The indication for indicating code division multiplexing with the first signal in the second code division multiplexing information can be understood as an indication for code division multiplexing with a signal corresponding to non-current signal configuration information (such as signal configuration information of the first signal), such as an indication for whether to code division multiplexing with the first signal.

[0279] The code division multiplexing information can enable reliable code division multiplexing of the first signal and the second signal.

[0280] In some embodiments, the signal configuration information of the first signal or the second signal can be configured in a CDM group as a granularity, for example, indicating whether there is a port unavailable in the CDM group, or indicating which ports in the CDM group are unavailable.

[0281] In some embodiments, in the case that the first frequency domain resource comprises a plurality of the third frequency domain resources:

[0282] The port-related information of the first signal or the first code division multiplexing information is configured in granularity of the third frequency domain resource; or

[0283] The port-related information of the first signal or the first code division multiplexing information is shared by the plurality of the third frequency domain resources.

[0284] The plurality of the third frequency domain resources can correspond to a plurality of second signals. For example, the first signal is of a large bandwidth, and different parts of the bandwidth of the received signal of the first signal can be code division multiplexed with different second signals (on different third frequency domain resources). The receiving devices corresponding to the second signals can be different or the same.

[0285] The port-related information of the first signal or the first code division multiplexing information configured in granularity of the third frequency domain resource can be understood as that the first signal configuration information comprises the port-related information of the first signal or the first code division multiplexing information corresponding to the plurality of third frequency domain resources respectively, and the plurality of the port-related information of the first signal or the first code division multiplexing information can be the same or different, which can be configured according to actual needs.

[0286] Since the port-related information of the first signal or the first code division multiplexing information is configured in granularity of the third frequency domain resource, the receiving device of the first signal can better decode the first signal from the plurality of third frequency domain resources, and the transmission flexibility of the first signal and the plurality of second signals can be improved to meet the needs of more services or scenarios.

[0287] The port-related information of the first signal or the first code division multiplexing information shared by the plurality of the third frequency domain resources can be understood as that the code division multiplexing manners of the plurality of third frequency domain resources are the same, so that only one code division multiplexing information or port-related information needs to be included, thereby saving the overhead of signal configuration information.

[0288] In some embodiments, the signal configuration information of the first signal or the second signal can further comprise at least one of the following:

[0289] signal resource identifier, signal purpose, waveform, subcarrier spacing, guard interval, starting frequency domain position, ending frequency domain position, starting time domain position, ending time domain position, frequency domain resource length, time domain resource length, frequency domain resource interval, time domain resource interval, time domain resource characteristic, signal power, signal direction, sequence information, quasi co-location (QCL) relationship, cyclic prefix (CP) information.

[0290] The signal resource identifier is used to distinguish different signal resource configurations.

[0291] The signal usage is used to indicate that the target signal is a signal for measurement, a signal for sensing, or a signal for both communication measurement and sensing. Specifically, it can also be a signal for a certain sensing service or a signal for a certain type of sensing service.

[0292] The waveform can be OFDM, single-carrier frequency-division multiple access (SC-FDMA), orthogonal time frequency space (OTFS), frequency modulated continuous wave (FMCW), or pulse signal, etc.

[0293] The subcarrier spacing can be the subcarrier spacing of an OFDM system, for example, 30KHz.

[0294] The guard interval can be the time interval between the end of signal transmission and the time when the latest echo signal of the signal is received, which is proportional to the maximum sensing distance. For example, it can be calculated by c / (2R max ), where R max is the maximum sensing distance (belonging to sensing requirement information), such as for self-emitting and self-receiving sensing signals, R max represents the maximum distance from the sensing signal transmission point to the signal transmission point; in some cases, the OFDM cyclic prefix (CP) can act as a minimum guard interval, and c is the speed of light.

[0295] The frequency domain starting position can be a starting frequency point, or a starting RE or RB index.

[0296] The terminal frequency domain position, i.e., the terminal frequency point, can be represented by a terminal RE or RB index.

[0297] The time domain starting position can be a starting time point, or a starting symbol, time slot, or frame index.

[0298] The frequency domain resource length can be understood as a frequency domain bandwidth, and the frequency domain bandwidth is inversely proportional to the distance resolution. The frequency domain bandwidth B of each signal satisfies B≥c / (2ΔR), where c is the speed of light and ΔR is the distance resolution.

[0299] The time domain resource length can be a burst duration, and the time domain resource length is inversely proportional to the Doppler resolution (which belongs to the perception requirement information).

[0300] The frequency domain resource interval can represent an interval of adjacent signal frequency domain resource units, which can be represented by the number of REs or RBs, or by a density value (Density). For example, Density = 1 means that one RE in each RB is used to carry signals. The frequency domain resource interval is inversely proportional to the maximum unambiguous range / delay. For an OFDM system, when the subcarriers are continuously mapped, the frequency domain interval is equal to the subcarrier interval. The frequency domain resource unit interval can also be represented by a comb mapping parameter K comb , for example, comb1 (K comb = 1) represents continuous mapping in the frequency domain, comb2 (K comb = 2) represents sequence mapping every 1 subcarrier in the frequency domain (for example, signals occupy subcarriers 0, 2, 4,...), and comb4 (K comb = 4) represents sequence mapping every 3 subcarriers in the frequency domain (for example, signals occupy subcarriers 0, 4, 8,...).

[0301] The time domain resource interval can be the time interval between two adjacent signals, and the time domain resource interval is associated with the maximum unambiguous Doppler shift or the maximum unambiguous velocity.

[0302] The time domain characteristics satisfy at least one of the following: periodic transmission, semi-persistent transmission, and aperiodic transmission.

[0303] The signal power can be an interval power value, for example, from -20 dBm to 23 dBm, with a value every 2 dBm.

[0304] The signal direction can be angle information or beam information of signal transmission.

[0305] The QCL relationship can indicate that the signal includes multiple resources, each resource is QCL with an SSB, and the QCL includes Type A, Type B, Type C, or Type D.

[0306] The cyclic prefix (CP) information can include CP type or CP length, such as normal cyclic prefix (NCP), extended cyclic prefix (ECP), or a newly designed CP dedicated for perception measurement.

[0307] The signal configuration information can also include a time domain burst resource interval or a time domain burst transmission period, which is associated with the perception result refresh frequency.

[0308] In some embodiments, all or part of the signal configuration information of the first signal or the second signal can be agreed upon or pre-configured.

[0309] As an optional embodiment, the first signal and a third signal are frequency division multiplexed or code division multiplexed on the first frequency domain resource, and the third signal is a signal transmitted by a third device for sensing.

[0310] Or,

[0311] The second signal and a fourth signal are frequency division multiplexed or code division multiplexed on the second frequency domain resource, and the fourth signal is a signal transmitted by a fourth device.

[0312] The third device can be a terminal or a network side device.

[0313] The time domain resources occupied by the first signal and the third signal overlap, such as the time domain resources occupied by the first signal and the third signal being the same, or the time domain resources occupied by the first signal containing the time domain resources occupied by the third signal, or the time domain resources occupied by the third signal containing the time domain resources occupied by the first signal.

[0314] The time domain resources occupied by the second signal and the fourth signal overlap, such as the time domain resources occupied by the second signal and the fourth signal being the same, or the time domain resources occupied by the second signal containing the time domain resources occupied by the fourth signal, or the time domain resources occupied by the fourth signal containing the time domain resources occupied by the second signal.

[0315] For frequency division multiplexing, the first signal and the third signal on the first frequency domain resource can occupy different frequency domain resource units through frequency domain Comb mapping, or the second signal and the fourth signal on the second frequency domain resource can occupy different frequency domain resource units through frequency domain Comb mapping.

[0316] In some embodiments, in the case where the first signal and the third signal are code division multiplexed on the first frequency domain resource, the base sequence of the first signal is the same as that of the third signal, the orthogonal cover code of the first signal is different from that of the third signal, and the frequency domain resources occupied by the first signal and the third signal are the same.

[0317] In some embodiments, in the case where the second signal and the fourth signal are code division multiplexed on the second frequency domain resource, the base sequence of the second signal is the same as that of the fourth signal, the orthogonal cover code of the second signal is different from that of the fourth signal, and the frequency domain resources occupied by the second signal and the fourth signal are the same.

[0318] In the optional implementation, the signals transmitted by the multiple signal transmitting devices are frequency division multiplexed or code division multiplexed to improve the communication rate.

[0319] As an optional implementation, the third frequency domain resource includes M frequency domain resources, the M frequency domain resources carry M second signals, the signal receiving devices of the M second signals are different, and the first signal carried on the M frequency domain resources is part of the sensing signal in the sensing service, and M is an integer greater than 1.

[0320] The M frequency domain resources can be M frequency domain resource units.

[0321] The M second signals can be the same signal, or the same type of signal, or different types of signals, such as the M second signals can include M signals of CSI-RS, DMRS, SRS, PSS, SSS, and PRS.

[0322] The signal receiving devices of the M second signals can be different, which means that the second signals carried on different frequency domain resources are directed to different communication devices, thereby transmitting the second signals to M devices to improve signal transmission performance.

[0323] The first signal carried on the M frequency domain resources can be part of the signal detected by the sensing service, such as the signal detected by the sensing service including all first signals transmitted on the first frequency domain resource.

[0324] The signal receiving device of the second signal and the sensing receiving device of the first signal can be the same device or different devices.

[0325] As an optional implementation, the first signal or the second signal can be a periodic signal, a semi-persistent signal, or an aperiodic signal, and when the time domain resources of the first signal and the second signal conflict, the first signal and the second signal are code division multiplexed.

[0326] In this implementation, it can be a periodic signal, a semi-persistent signal, or an aperiodic signal, which can be flexibly code division multiplexed, suitable for more services or scenarios.

[0327] In the embodiment of the present application, the first device transmits the first signal for sensing on the first frequency domain resource, and transmits the second signal on the second frequency domain resource; wherein the time domain resource occupied by the first signal includes the time domain resource occupied by the second signal, the first signal transmitted on the third frequency domain resource is code division multiplexed with the second signal transmitted on the third frequency domain resource, and the third frequency domain resource is the frequency domain resource overlapping the first frequency domain resource and the second frequency domain resource. In this way, since the first frequency domain resource and the second frequency domain resource have the overlapping third frequency domain resource, and the time domain resource occupied by the first signal includes the time domain resource occupied by the second signal, the first signal transmitted on the third frequency domain resource is code division multiplexed with the second signal transmitted on the third frequency domain resource, so that the time domain resource occupied by the first signal and the second signal on the third frequency domain resource can be the same, that is, the first signal and the second signal are transmitted on the same time domain resource at the same time, thereby improving the communication rate.

[0328] Please refer to Figure 9 , Figure 9 is a flowchart of a sensing method provided by the embodiment of the present application, as shown in Figure 9 , comprising the following steps:

[0329] Step 901, the second device performs sensing measurement on the first signal for sensing transmitted by the first device on the first frequency domain resource.

[0330] Wherein, the time domain resource occupied by the first signal includes the time domain resource occupied by the second signal, the first signal transmitted on the third frequency domain resource is code division multiplexed with the second signal transmitted on the third frequency domain resource, and the third frequency domain resource is the frequency domain resource overlapping the first frequency domain resource and the second frequency domain resource.

[0331] Optionally, the first frequency domain resource includes the second frequency domain resource, and the third frequency domain resource is equal to the second frequency domain resource.

[0332] Optionally, the base sequence of the first signal and the second signal on the third frequency domain resource is the same, and the orthogonal cover code of the first signal and the second signal on the third frequency domain resource is different.

[0333] Optionally, the generation parameter of the base sequence of the first signal or the second signal is associated with at least one of the following:

[0334] Sensing service related information, information of the device participating in sensing, frequency domain resource related information, time domain resource related information, space domain resource related information, base sequence identification information.

[0335] Optionally, the method further comprises at least one of the following:

[0336] The second device acquires signal configuration information of the first signal;

[0337] The second device acquires signal configuration information of the second signal;

[0338] The second device sends, to the first device, signal configuration information of the first signal;

[0339] The second device sends, to the first device, signal configuration information of the second signal.

[0340] Optionally, the signal configuration information of the first signal comprises at least one of:

[0341] base sequence related information of the first signal, port related information of the first signal, first code division multiplexing information;

[0342] or,

[0343] The signal configuration information of the second signal comprises at least one of:

[0344] base sequence related information of the second signal, port related information of the second signal, second code division multiplexing information.

[0345] Optionally, the base sequence related information of the first signal comprises at least one of:

[0346] associated information of generation parameters of a base sequence of the first signal;

[0347] a type of the base sequence of the first signal;

[0348] a length of the base sequence of the first signal;

[0349] or,

[0350] The base sequence related information of the second signal comprises at least one of:

[0351] associated information of generation parameters of a base sequence of the second signal;

[0352] a type of the base sequence of the second signal;

[0353] a length of the base sequence of the second signal.

[0354] Optionally, the associated information comprises at least one of:

[0355] sensing service related information, information of a device participating in sensing, frequency domain resource related information, time domain resource related information, space domain resource related information, base sequence identification information.

[0356] Optionally, the sensing service related information comprises at least one of:

[0357] a perception measurement range identifier, a perception area identifier, a perception service identifier, a perception service type, an identifier indicating whether to be used for perception, an identifier of a perception target, an identifier of a tag associated with the perception target, a number of perception targets, and perception measurement quantity information.

[0358] Optionally, the spatial domain resource related information comprises at least one of the following:

[0359] a port index, a number of ports, a code division multiplexing (CDM) group index, a number of CDM groups, an antenna index, an antenna group index, an antenna subarray index, an antenna panel index, a maximum number of antennas, a maximum number of antenna groups, a maximum number of antenna subarrays, and a maximum number of antenna panels.

[0360] Optionally, the sequence type comprises at least one of the following:

[0361] a cell-specific reference signal sequence, a region-specific reference signal sequence, and a terminal-specific reference signal sequence.

[0362] Optionally, the port related information of the first signal comprises at least one of the following:

[0363] first port number information, first port index information, an indication indicating whether a port corresponding to the first signal is occupied by the second signal, and port information of a port corresponding to the second signal and occupied by the first signal.

[0364] or

[0365] the port related information of the second signal comprises at least one of the following:

[0366] second port number information, second port index information, and an indication indicating whether a port corresponding to the second signal is occupied by the first signal.

[0367] Optionally, the first port number information comprises at least one of the following:

[0368] a total number of ports for the first signal, a number of ports invalid for the first signal, a number of ports valid for the first signal, a number of ports used for perception, a number of ports used for communication, and a number of general-purpose ports.

[0369] or

[0370] the second port number information comprises at least one of the following:

[0371] a total number of ports for the second signal, a number of ports invalid for the second signal, a number of ports valid for the second signal, a number of ports used for perception, a number of ports used for communication, and a number of general-purpose ports.

[0372] Optionally, the first port index information comprises at least one of:

[0373] all port indexes, port indexes invalid for the first signal, port indexes valid for the first signal, port indexes for sensing, port indexes for communication, general port indexes;

[0374] or,

[0375] The second port index information comprises at least one of:

[0376] all port indexes, port indexes invalid for the second signal, port indexes valid for the second signal, port indexes for sensing, port indexes for communication, general port indexes.

[0377] Optionally, the first code division multiplexing information comprises at least one of:

[0378] code division multiplexing type, an indication for indicating code division multiplexing with the second signal;

[0379] or,

[0380] The second code division multiplexing information comprises at least one of:

[0381] code division multiplexing type, an indication for indicating code division multiplexing with the first signal.

[0382] Optionally, in the case where the first frequency domain resource comprises a plurality of the third frequency domain resources:

[0383] the port related information of the first signal or the first code division multiplexing information is configured in granularity of the third frequency domain resource; or

[0384] the port related information of the first signal or the first code division multiplexing information is shared by a plurality of the third frequency domain resources.

[0385] It should be noted that the embodiment is as an implementation of the corresponding second device in the embodiment shown in Figure 4 The specific implementation of the embodiment can be referred to the related description of the embodiment shown in Figure 4 To avoid repeated description, the embodiment will not be described here.

[0386] The following will take measurement as sensing as an example to illustrate the method provided by the embodiment of the present application through a plurality of embodiments:

[0387] Embodiment one:

[0388] This embodiment mainly describes the overall process of the code division multiplexing scheme of the first signal and the second signal used for perception, and takes the second signal as a communication signal for example. When the second signal is a signal used for perception, the signal generation and mapping processes are similar and will not be repeated.

[0389] The scenario corresponding to this embodiment is a scenario where the time domain resources of the first signal and the communication signal conflict, for example, the first signal and the communication signal need to be sent on the same OFDM symbol, such as Figure 10 As shown. Among them, B1 is the first frequency domain resource; B2 is the third frequency domain resource, B 21 、B 22 、B 23 The third frequency domain resources allocated to different users are Figure 10 The third frequency domain resource is equal to the second frequency domain resource (the third frequency domain resource is equal to the second frequency domain resource for illustration in the following embodiment), where different users here can be different receiving devices or sending devices; ΔT is the time domain resource interval of the first signal, or the time domain sending period, T p The coherent processing time is the time domain resource length used to calculate the perception measurement results each time (for example, the time domain resource length corresponding to the range-Doppler spectrum obtained by performing a two-dimensional FFT operation). The coherent processing time may include multiple time slots or symbols.

[0390] Generate a base sequence r = [r(0), r(1), ..., r(N-1)] of the first signal or communication signal, the length N of the base sequence is equal to the maximum system bandwidth (Maximum number of PRBs ) or the bandwidth allocated by the system for perception (the maximum bandwidth resource occupied by the first signal) is associated.

[0391] For example: Maximum system bandwidth At this time, the OFDM subcarrier spacing Δf=30kHz, and the maximum number of PRBs Length of base sequence in, The number of subcarriers in each RB is taken

[0392] Another example: Maximum system bandwidth At this time, the OFDM subcarrier spacing Δf = 120kHz, and the maximum number of PRBs Length of base sequence

[0393] Determine the orthogonal cover codes used by the first signal and the communication signal. Figure 11 As shown, the RE associated with CDM can be as follows Figure 11The adjacent REs shown can also be non-adjacent REs. Figure 11 fd-CDM2, cdm4-FD2-TD2, cdm8-FD2-TD4, and fd-CDM2 orthogonal codes.

[0394] The first signal sequence is obtained according to the OCC used by the base sequence and the first signal, and is mapped to the first frequency domain resource; the communication signal sequence is obtained according to the OCC used by the base sequence and the communication signal, and is mapped to the third frequency domain resource. The first frequency domain resource includes the third frequency domain resource. The specific mapping elements are as follows:

[0395]

[0396] k'∈{0,1}

[0397] l'∈{0,1,2,3}

[0398] wherein, represents an element mapped on a resource with RE index k and symbol index l, k is the RE index, l is the symbol index, p is the port index, μ refers to a numerology corresponding to a subcarrier spacing, and β RS is a power adjustment factor, k is the RE index, l is the symbol index, r(k) represents a corresponding element in the base sequence, w f (k')w t (l') represents the OCC.

[0399] The values of k and l are associated with the time and frequency domain resource patterns of the first signal and the communication signal, for example: the frequency domain mapping position, i.e. the RE index, is determined according to the frequency domain starting position, the frequency domain resource density or the comb mapping parameter; the time domain mapping position, i.e. the OFDM symbol index, is determined according to the time domain transmission period and the symbol offset in the time slot. In addition, the elements of the above base sequence are not selected in order, but the corresponding element r(k) is selected according to the frequency domain mapping position.

[0400] Optionally, the CDM type can only support frequency domain CDM, for example, only fd-CDM2, in which case k'∈{0,1} and l'=0.

[0401] The specific values of the OCC are shown in Tables 3, 4 and 5:

[0402] Table 3 shows the values of w f (k')w t (l') when the CDM type is fd-CDM2

[0403] Table 3:

[0404] Index [[w f (0) w f (1)]]]> w t (0)]]> 0 [+1 +1] 1 1 [+1 -1] 1

[0405] Table 4 shows the value of w when the CDM type is cdm4-FD2-TD2 f (k')w t the value of (l')

[0406] Table 4:

[0407] Index [[w f (0) w f (1)]]]> [[w t (0) w t (1)]]]> 0 [+1 +1] [+1 +1] 1 [+1 -1] [+1 +1] 2 [+1 +1] [+1 -1] 3 [+1 -1] [+1 -1]

[0408] Table 5 shows the value of w when the CDM type is cdm8-FD2-TD4 f (k')w t the value of (l')

[0409] Table 5:

[0410] Index [[w f (0) w f (1)]]]> [[w t (0) w t (1) w t (2) w t (3)]]]> 0 [+1 +1] [+1 +1 +1 +1] 1 [+1 -1] [+1 +1 +1 +1] 2 [+1 +1] [+1 -1 +1 -1] 3 [+1 -1] [+1 -1 +1 -1] 4 [+1 +1] [+1 +1 -1 -1] 5 [+1 -1] [+1 +1 -1 -1] 6 [+1 +1] [+1 -1 -1 +1] 7 [+1 -1] [+1 -1 -1 +1]

[0411] For example, the first signal and the communication signal use fd-CDM2, the OCC used by the first signal is [w f (0) w f (1)] = [+1 +1], and the OCC used by the communication signal is [w f (0) w f (1)] = [+1 -1]. The first signal sequence is obtained according to the base sequence and the OCC used by the first signal, and is mapped to the first frequency domain resource (RB0~RB272); the communication signal sequence is obtained according to the base sequence and the OCC used by the communication signal, and is mapped to the third frequency domain resource (RB0~RB1), as shown in Figure 12 .

[0412] The resource unit mapped by the sequence can be continuous or discontinuous, as shown in Figure 13 .

[0413] Embodiment Two

[0414] This embodiment mainly describes the base sequence generation method of the first signal and the second signal.

[0415] For example, the base sequence of the first signal and the second signal is a QPSK modulated Gold sequence, and the specific generation method is as follows:

[0416] A Gold sequence c(n) of length 2N is generated, n=0, 1,…,2N-1, and the Gold sequence generation method is

[0417] c(n) = (x1(n+N c )+x2(n+N c ))mod 2

[0418] x1(n+31) = (x1(n+3)+x1(n))mod 2

[0419] x2(n+31) = (x2(n+3) + x2(n+2) + x2(n+1) + x2(n)) mod 2

[0420] where n = 0, 1, …, M PN -1, M PN = 2N is the sequence length. N c = 1600, the first m sequence x1(n) is initialized as x1(0) = 1, x1(n) = 0, n = 1, 2, …, 30; the second m sequence x2(n) is initialized as

[0421] The base sequence of the length of N is obtained by QPSK modulation of the Gold sequence c(n) of the length of 2N:

[0422]

[0423] where the initialization factor c init is associated with at least one of the following: sensing service related information, device information, time domain resource related information, frequency domain resource related information, spatial domain resource related information, sequence identifier Specifically, it can be:

[0424] or or

[0425] wherein is the number of symbols per slot, is the slot index within a radio frame, l is the symbol index within a slot, and x is a non-negative positive integer. Wherein the coefficient parameter of the first term in the initialization formula can be determined according to the variable value range and the coefficient parameter value of the following several terms, for example, the sensing area ID is 1000, which needs to be represented by 10 bits of binary number, then x = 10 can be set, so as to ensure that there is no repeated generated sequence, wherein A is a non-negative positive integer, which can be set as A = 31.

[0426] or or wherein is a physical cell identifier, which can also be wherein x, y are non-negative positive integers.

[0427] or wherein n port is a port index, x, y, z are non-negative positive integers.

[0428] or c init = (2 x (n win +1) + n port ) mod 2A , also can be wherein n win is a coherent processing time window / sensing resource block index.

[0429] Or, taking the sensing area as an example,

[0430] wherein is the number of symbols per slot, is the number of slots per frame when the subcarrier spacing configuration is n areaID is a sensing area identifier, and x is a non-negative positive integer. In the initialization formula, the coefficient parameter of the first term can be determined according to the variable value range and the coefficient parameter value of the following several terms, for example, if the sensing area ID is 1000, it needs to be represented by 10 bits of binary number, then x can be set to 10, so as to ensure that there is no repeated generated sequence, wherein A is a non-negative positive integer, which can be set to 31.

[0431] Or, wherein is a physical cell identifier, which can also be wherein x and y are non-negative positive integers.

[0432] Embodiment three:

[0433] This embodiment mainly describes multi-port resource allocation, and further describes signal resource allocation corresponding to multiple ports and related indication.

[0434] Taking the second signal as the 5G system DMRS as an example, as shown in Figure 14 is a time-frequency domain resource format of DMRS type 1, for DMRS type 1:

[0435] Single-symbol DMRS, the subcarriers in one OFDM symbol are divided into two groups of frequency-divided comb resources, wherein each group of comb resources constitutes a CDM group. 2-port multiplexing is supported in the CDM group through 2 OCCs (OCC mapping is performed between every two adjacent re), and at most 4 ports are supported.

[0436] Double-symbol DMRS, on the basis of single-symbol, time-domain OCC is added, each group of comb resources occupies two consecutive OFDM symbols, and 4 orthogonal ports are realized through 4 time-frequency domain OCCs in each CDM group, and at most 8 ports are supported.

[0437] According to the scheme provided in the embodiment of the present application, for the configuration type 1 single symbol DMRS, assuming that the first signal occupies the continuous RE resources on the first frequency domain resource (for example, RB0~RB272), the RE occupied by the signal corresponding to the DMRS port 0 or 1 on the RB occupied by the DMRS can be the same, which can be that the first signal and the DMRS use the same base sequence, and the base sequence generation manner is as shown in the embodiment 2. Wherein, the first signal and the signal corresponding to the DMRS port 0 use the same OCC, the CDM type of the first signal and the communication signal (DMRS) uses fd-CDM2, and the OCC used by the first signal is [w f (0)w f (1)] = [+1+1], that is, the resource of the DMRS port 0 (p = 1000) is allocated to the first signal. In this way, for the DMRS type 1 single symbol configuration, the maximum total number of communication ports supported is 3 (the number of communication ports in the CDM group 0 is 1, and the number of communication ports in the CDM group 1 is 2). That is, for the communication receiving device, the DMRS port 0 is set as an invalid port.

[0438] For the double symbol DMRS, assuming that the first signal occupies the continuous RE resources on the first frequency domain resource (for example, RB0~RB272), the RE occupied by the signal corresponding to the DMRS port 0 or 1 or 4 or 5 on the RB occupied by the DMRS can be the same, which can be that the first signal and the DMRS use the same base sequence, and the base sequence generation manner is as shown in the embodiment 2. Wherein, the first signal and the signal corresponding to the DMRS port 0 use the same OCC, the CDM type of the first signal and the communication signal (DMRS) uses cdm4-FD2-TD2, and the frequency domain OCC used by the first signal is [w f (0)w f (1)] = [+1+1], the time domain OCC used is [w t (0)w t (1)] = [+1+1]. That is, the resource of the DMRS port 0 (p = 1000) is allocated to the first signal. In this way, for the DMRS type 1 double symbol configuration, the maximum total number of communication ports supported is 7 (the number of communication ports in the CDM group 0 is 3, and the number of communication ports in the CDM group 1 is 4). That is, for the communication receiving device, the DMRS port 0 is set as an invalid port. That is, for the first signal, the index of the port of the DMRS occupied is 1000, and the corresponding equivalent port index is 0. The equivalent port index is the port index corresponding to the actual port index of the reference signal occupied, and the use of the equivalent port index can make that when the first signal and different reference signals are code division multiplexed, the ports occupied by the first signal can be indicated by a unified port index set.

[0439] In addition to configuration type 1, DMRS currently supports configuration type 2, which further increases the maximum number of supported ports. At this time, the number of supported CDM groups is 3, and single-symbol configuration and double-symbol configuration are also supported. Figure 15 As shown:

[0440] Single-symbol DMRS: Subcarriers within an OFDM symbol are divided into three CDM groups, each consisting of two adjacent subcarriers. Two OCCs are used within a CDM group to support two-port multiplexing, and inter-group FDM supports up to six subcarriers.

[0441] Dual-symbol DMRS adds time-domain OCC to the single-symbol system. Each CDM group occupies two consecutive OFDM symbols. Each CDM group implements four orthogonal ports through four time-frequency domain OCCs, supporting a maximum of 12 ports.

[0442] According to the solution provided in the embodiment of the present application, for a single-symbol DMRS, assuming that the first signal occupies continuous RE resources on the first frequency domain resource (e.g., RB0 to RB272), and the REs occupied by the signals corresponding to DMRS ports 0 to 5 on the RB occupied by the DMRS are the same (i.e., the first signal occupies RE0 to 11 on the RB occupied by the DMRS), the first signal and the DMRS may use the same base sequence, and the base sequence generation method is as in Example 2. Among them, the first signal and the signals corresponding to DMRS ports 0, 2, and 4 use the same OCC, the CDM type of the first signal and the communication signal (DMRS) adopts fd-CDM2, and the OCC used by the first signal is [w f (0)w f (1)] = [+1+1], that is, the resources of DMRS ports 0 (p = 1000), 2 (p = 1002), and 4 (p = 1004) are allocated to the first signal. In this way, for the DMRS type 2 single symbol configuration, the maximum total number of communication ports supported is 3 (the number of communication ports in CDM group 0 is 1, the number of communication ports in CDM group 1 is 1, and the number of communication ports in CDM group 2 is 1). That is, for the communication receiving device, DMRS ports 0, 2, and 4 are set to invalid ports. That is, for the first signal, the indexes of the DMRS ports it occupies are 1000, 1002, and 1004, and the corresponding equivalent port indexes are 0, 2, and 4.

[0443] For the case of double symbols, the method of port resource allocation is similar and will not be repeated here. It can be that the port resource with a smaller index in each CDM group is allocated to the first signal by default, or other communication port resources can be allocated to the first signal. That is, for the communication equipment, the invalid port number and invalid specific port index can also be other situations, all within the protection scope of the embodiments of the present application.

[0444] Or, for example, the second signal is a 5G system CSI-RS, which has more flexible resource configuration and can be multiple CSI-RS resources used for sensing measurement. The number of ports of the CSI-RS resource (CSI-RS resource) can be single-port or multi-port (multi-port), up to 32 ports.

[0445] For example, CSI-RS Row = 3, which supports 2-port CSI-RS transmission based on frequency domain CDM (frequency domain OCC modulation), uses frequency domain CDM2. The CSI-RS frequency domain density configuration is 1, that is, there are 2 REs in each resource block (RB) carrying 2-port CSI-RS signals. Assuming that the first signal occupies 273 RBs (RB0~RB272) and occupies continuous REs, the CSI-RS occupies 50 RBs (RB0~RB49). As shown in Figure 16 , RE0 and RE1 in each RB are used to transmit CSI-RS, that is, RE0 and RE1 in each of RB0~RB49 are REs commonly occupied by the first signal and CSI-RS. The CSI-RS port 0 (for example, p = 3000) resource can be allocated to the first signal. The first signal and the CSI-RS use the same base sequence, the first signal and the CSI-RS port 0 corresponding signal use the same OCC, the first signal and the CSI-RS signal use fd-CDM2 as the CDM type, and the first signal uses the OCC [w f (0)w f (1)] = [+1+1], and the OCC used by the CSI-RS port 1 (for example, p = 3001) is [w f (0)w f (1)] = [+1 -1]. In this way, for the current CSI-RS configuration, the maximum number of communication ports supported is 1, that is, for the CSI-RS receiving device, the CSI-RS port 0 is set as an invalid port. That is, for the first signal, the index of the occupied CSI-RS port is 3000, and the corresponding equivalent port index is 0.

[0446] In addition, for the scenario of configuring multiple CSI-RS resources of Row = 3, multiple CSI-RS resources occupy different frequency domain positions in the same OFDM symbol (which can be realized by configuring the corresponding starting re). The CSI-RS frequency domain density configuration is 1, that is, for each CSI-RS resource, there are 2 REs in each resource block (RB) carrying 2-port CSI-RS signals. Assuming that the first signal occupies 273 RBs (RB0~RB272) and occupies continuous REs, the CSI-RS occupies 50 RBs (RB0~RB49). As shown in Figure 17As shown, RE0 and RE1 in each RB are used to transmit CSI-RS resource 1, RE2 and RE3 are used to transmit CSI-RS resource 2, RE0-RE11 in each of RB0-RB49 are REs shared by the first signal and CSI-RS, i.e., the third frequency domain resource includes frequency domain resources corresponding to multiple CSI-RS resource pairs. Port 0 (e.g., p=3000) of each CSI-RS resource can be allocated to the first signal. The first signal uses the same base sequence as the CSI-RS, the first signal uses the same OCC as the CSI-RS port 0 corresponding signal, the first signal uses fd-CDM2 as the CDM type of the CSI-RS signal, and the first signal uses [w f (0)w f (1)] = [+1+1], and the OCC used by CSI-RS port 1 (e.g., p=3001) is [w f (0)w f (1)] = [+1-1]. In this way, for each CSI-RS resource, the maximum number of communication ports supported is 1, i.e., for a CSI-RS receiving device, port 0 of the corresponding CSI-RS resource is set as an invalid port. That is, for the first signal, the index of the port of each CSI-RS resource occupied is 3000, and the corresponding equivalent port index is 0.

[0447] Alternatively, for the case where multiple CDM groups are included in the same CSI-RS resource, for example, the case where Row=9 is configured, 12 ports and 6 CDM groups are supported at most, and multiple CSI-RS resources occupy different frequency domain positions in the same OFDM symbol (which can be implemented by configuring the corresponding starting re). The CSI-RS frequency domain density is configured as 1, i.e., for a CSI-RS resource, 12 REs in each resource block (RB) carry 12-port CSI-RS signals. Assuming that the first signal occupies 273 RBs (RB0-RB272) and occupies consecutive REs, and the CSI-RS occupies 50 RBs (RB0-RB49). As shown in FIG. 6, the first signal occupies 273 RBs (RB0-RB272) and occupies consecutive REs, and the CSI-RS occupies 50 RBs (RB0-RB49). Figure 18As shown, RE0-RE11 in each of RB0-RB49 is a RE shared by the first signal and the CSI-RS, i.e. the third frequency domain resource includes the frequency domain resource corresponding to each of the CDM groups in the CSI-RS resource. One port (e.g. p=3000, p=3002, p=3004, p=3006, p=3008, p=3010) in each of the CDM groups can be allocated to the first signal. The first signal uses the same base sequence as the CSI-RS, the first signal and the CSI-RS port 0, 2, 4, 6, 8, 10 (e.g. p=3000, p=3002, p=3004, p=3006, p=3008, p=3010) correspond to the same OCC, the CDM type of the first signal and the CSI-RS signal in each of the CDM groups uses fd-CDM2, and the OCC used by the first signal is [w f (0) w f (1)] = [+1 +1], the OCC used by the CSI-RS port is [w f (0) w f (1)] = [+1 -1]. In this way, for this CSI-RS resource, the maximum number of communication ports supported is 11, i.e. for the CSI-RS receiving device, the corresponding ports 0, 2, 4, 6, 8, 10 (e.g. p=3000, p=3002, p=3004, p=3006, p=3008, p=3010) of the CSI-RS resource are set as invalid ports. I.e. for the first signal, the indexes of the occupied CSI-RS ports are 3000, 3002, 3004, 3006, 3008, 3010, and the corresponding equivalent port indexes are 0, 2, 4, 6, 8, 10.

[0448] It should be noted that in Figure 12 , Figure 13 , and 16 to Figure 18 , the first signal sequence is represented by a first sensing signal sequence.

[0449] According to the scheme provided in the embodiment of the present application, the code division multiplexing scheme of the first signal and the communication signal (CSI-RS) on the third frequency domain resource can be that the port resource with the smallest index among all port resources supported by the default communication signal is allocated to the first signal, or the odd-indexed port resource is allocated to the first signal, or the port resource using the OCC with all sequence elements +1 is allocated to the first signal; or it can be that specific port resources in each CDM group in the communication signal are allocated to the first signal, or specific port resources in a specific CDM group (for example, CDM group 0) in the communication signal are allocated to the first signal; or it can be other default port resource allocation methods, at this time, it can only be notified whether the communication signal has a port allocated to the first signal, that is, whether code division multiplexing is performed with the signal corresponding to the non-current signal configuration information, or whether there is an indication that the port resource is occupied by the signal corresponding to the non-current signal configuration information, or the communication signal receiving device is notified of the invalid port number or the valid port number of the communication signal, and the receiving device can determine which specific port resources are allocated to the first signal according to the specific port resource allocation rule.

[0450] Alternatively, the communication signal receiving device may be notified of the specific port resources allocated to the first signal, such as a specific valid or invalid port index list. In a scenario where the first signal and the second signal (another perception signal) are code-division multiplexed, different perception signals are code-division multiplexed and use common port resources. The total number of ports of the perception signal is indicated to each perception signal receiving device through relevant signaling, as well as a specific valid or invalid port index list. This indicates which ports are valid and which are invalid for the perception signal, i.e., which are allocated to other perception signals.

[0451] In the method provided in the embodiment of the present application, when the time domain resources of the perception signal and other signals conflict, that is, when the two signals occupy the same time domain position, the joint transmission of the two signals is achieved through code division multiplexing. Specifically, it includes: the first device sends a first signal on a first frequency domain resource, and sends a second signal (communication signal or other perception signal) on at least one third frequency domain resource, wherein the third frequency domain resource is a subset of the first frequency domain resource; the first signal and the second signal on the third frequency domain resource are code division multiplexed. Due to the design of code division multiplexing of the second signal and the second signal, resource utilization efficiency is improved without reducing perception performance or communication performance.

[0452] The signal sending method provided in the embodiment of the present application can be executed by a signal sending device. In the embodiment of the present application, the signal sending device provided in the embodiment of the present application is described by taking the signal sending method executed by the signal sending device as an example.

[0453] The perception method provided in the embodiments of the present application can be executed by a perception device. The perception device provided in the embodiments of the present application is described by taking the perception device executing the perception method as an example.

[0454] Please refer to Figure 19 , Figure 19 is a structural diagram of a signal sending device provided in the embodiments of the present application, as shown in Figure 19 The signal sending device 1900 includes:

[0455] The first sending module 1901 is configured to send a first signal for perception on a first frequency domain resource, and send a second signal on a second frequency domain resource.

[0456] The time domain resource occupied by the first signal includes the time domain resource occupied by the second signal, the first signal sent on a third frequency domain resource is code division multiplexed with the second signal sent on the third frequency domain resource, and the third frequency domain resource is a frequency domain resource overlapping the first frequency domain resource and the second frequency domain resource.

[0457] Optionally, the first frequency domain resource includes the second frequency domain resource, and the third frequency domain resource is equal to the second frequency domain resource.

[0458] Optionally, the base sequence of the first signal and the second signal is the same on the third frequency domain resource, and the orthogonal cover code of the first signal and the second signal is different on the third frequency domain resource.

[0459] Optionally, the generation parameter of the base sequence of the first signal or the second signal is associated with at least one of the following:

[0460] Perception service related information, information of a device participating in perception, frequency domain resource related information, time domain resource related information, space domain resource related information, and base sequence identification information.

[0461] Optionally, the device further includes at least one of the following:

[0462] The first obtaining module is configured to obtain signal configuration information of the first signal.

[0463] The second obtaining module is configured to obtain signal configuration information of the second signal.

[0464] The second sending module is configured to send the signal configuration information of the first signal to a second device.

[0465] The third sending module is configured to send the signal configuration information of the second signal to the second device.

[0466] Optionally, the signal configuration information of the first signal includes at least one of the following:

[0467] base sequence related information of the first signal, port related information of the first signal, first code division multiplexing information;

[0468] or,

[0469] the signal configuration information of the second signal comprises at least one of:

[0470] base sequence related information of the second signal, port related information of the second signal, second code division multiplexing information.

[0471] Optionally, the base sequence related information of the first signal comprises at least one of:

[0472] associated information of generation parameters of the base sequence of the first signal;

[0473] a sequence type of the base sequence of the first signal;

[0474] a length of the base sequence of the first signal;

[0475] or,

[0476] the base sequence related information of the second signal comprises at least one of:

[0477] associated information of generation parameters of the base sequence of the second signal;

[0478] a sequence type of the base sequence of the second signal;

[0479] a length of the base sequence of the second signal.

[0480] Optionally, the associated information comprises at least one of:

[0481] perception service related information, information of a device participating in perception, frequency domain resource related information, time domain resource related information, space domain resource related information, base sequence identification information.

[0482] Optionally, the perception service related information comprises at least one of:

[0483] perception measurement range identification, perception area identification, perception service identification, perception service type, identification of whether used for perception, identification of a perception target, identification of a tag associated with the perception target, number of perception targets, perception measurement quantity information.

[0484] Optionally, the space domain resource related information comprises at least one of:

[0485] port index, port number, code division multiplexing (CDM) group index, CDM group number, antenna index, antenna group index, antenna subarray index, antenna panel index, maximum antenna number, maximum antenna group number, maximum antenna subarray number, maximum antenna panel number.

[0486] Optionally, the sequence type comprises at least one of:

[0487] cell-specific reference signal sequence, zone-specific reference signal sequence, terminal-specific reference signal sequence.

[0488] Optionally, the port-related information of the first signal comprises at least one of:

[0489] first port number information, first port index information, an indication indicating whether a port corresponding to the first signal is occupied by the second signal, port information of a port corresponding to the second signal and occupied by the first signal.

[0490] or,

[0491] the port-related information of the second signal comprises at least one of:

[0492] second port number information, second port index information, an indication indicating whether a port corresponding to the second signal is occupied by the first signal.

[0493] Optionally, the first port number information comprises at least one of:

[0494] first total port number, port number invalid for the first signal, port number valid for the first signal, port number for sensing, port number for communication, general port number.

[0495] or,

[0496] the second port number information comprises at least one of:

[0497] second total port number, port number invalid for the second signal, port number valid for the second signal, port number for sensing, port number for communication, general port number.

[0498] Optionally, the first port index information comprises at least one of:

[0499] all port indexes, port indexes invalid for the first signal, port indexes valid for the first signal, port indexes for sensing, port indexes for communication, general port indexes.

[0500] or,

[0501] the second port index information comprises at least one of:

[0502] all port indexes, port indexes invalid for the second signal, port indexes valid for the second signal, port indexes for sensing, port indexes for communication, general port indexes.

[0503] Optionally, the first code division multiplexing information comprises at least one of:

[0504] a code division multiplexing type, an indication for indicating code division multiplexing with the second signal;

[0505] or,

[0506] the second code division multiplexing information comprises at least one of:

[0507] a code division multiplexing type, an indication for indicating code division multiplexing with the first signal.

[0508] Optionally, in a case where the first frequency domain resource comprises a plurality of the third frequency domain resources:

[0509] the port related information of the first signal or the first code division multiplexing information is configured in granularity of the third frequency domain resource; or

[0510] the port related information of the first signal or the first code division multiplexing information is common to the plurality of the third frequency domain resources.

[0511] Optionally, the first signal is frequency division multiplexed or code division multiplexed with a third signal on the first frequency domain resource, the third signal being a signal for sensing transmitted by a third device;

[0512] or,

[0513] the second signal is frequency division multiplexed or code division multiplexed with a fourth signal on the second frequency domain resource, the fourth signal being a signal transmitted by a fourth device.

[0514] Optionally, in a case where the first signal is code division multiplexed with the third signal on the first frequency domain resource, a base sequence of the first signal is same as that of the third signal, an orthogonal cover code of the first signal is different from that of the third signal, and frequency domain resources occupied by the first signal are same as those occupied by the third signal;

[0515] or,

[0516] in a case where the second signal is code division multiplexed with the fourth signal on the second frequency domain resource, a base sequence of the second signal is same as that of the fourth signal, an orthogonal cover code of the second signal is different from that of the fourth signal, and frequency domain resources occupied by the second signal are same as those occupied by the fourth signal.

[0517] Optionally, the third frequency domain resource includes M frequency domain resources, M second signals are carried on the M frequency domain resources, signal receiving devices of the M second signals are different, and the first signal carried on the M frequency domain resources is part of a sensing signal in a sensing service, and M is an integer greater than 1.

[0518] The signal sending apparatus can improve a communication rate.

[0519] The signal sending apparatus in the embodiments of the present application can be an electronic device, for example, an electronic device with an operating system, or a component in the electronic device, for example, an integrated circuit or a chip. For example, the electronic device can be a terminal or another device other than the terminal. Exemplarily, the terminal can include, but is not limited to, the types of terminals listed in the embodiments of the present application, and the other device can be a server, a network attached storage (NAS), or the like, which is not limited in the embodiments of the present application.

[0520] The signal sending apparatus provided in the embodiments of the present application can achieve Figure 4 The method embodiments shown achieve various processes and achieve the same technical effects, and to avoid repetition, details are not repeated here.

[0521] Please refer to Figure 20 , Figure 20 is a structure diagram of a sensing device provided in the embodiments of the present application, as Figure 20 shown, the sensing device 2000 includes:

[0522] a sensing module 2001, configured to perform sensing measurement on a first signal for sensing sent by a first device on a first frequency domain resource;

[0523] The time domain resource occupied by the first signal includes the time domain resource occupied by the second signal, the first signal sent on a third frequency domain resource is code division multiplexed with the second signal sent on the third frequency domain resource, and the third frequency domain resource is a frequency domain resource overlapping the first frequency domain resource and the second frequency domain resource.

[0524] Optionally, the first frequency domain resource includes the second frequency domain resource, and the third frequency domain resource is equal to the second frequency domain resource.

[0525] Optionally, the base sequence of the first signal and the second signal on the third frequency domain resource is the same, and the orthogonal cover code of the first signal and the second signal on the third frequency domain resource is different.

[0526] Optionally, the generation parameter of the base sequence of the first signal or the second signal is associated with at least one of the following:

[0527] sensing service related information, information of a device participating in sensing, frequency domain resource related information, time domain resource related information, space domain resource related information, base sequence identification information.

[0528] Optionally, the apparatus further comprises at least one of:

[0529] a first obtaining module, configured to obtain signal configuration information of the first signal;

[0530] a second obtaining module, configured to obtain signal configuration information of the second signal;

[0531] a first sending module, configured to send the signal configuration information of the first signal to the first device;

[0532] a second sending module, configured to send the signal configuration information of the second signal to the first device.

[0533] Optionally, the signal configuration information of the first signal comprises at least one of:

[0534] base sequence related information of the first signal, port related information of the first signal, first code division multiplexing information;

[0535] or,

[0536] the signal configuration information of the second signal comprises at least one of:

[0537] base sequence related information of the second signal, port related information of the second signal, second code division multiplexing information.

[0538] Optionally, the base sequence related information of the first signal comprises at least one of:

[0539] association information of generation parameters of a base sequence of the first signal;

[0540] a type of the base sequence of the first signal;

[0541] a length of the base sequence of the first signal;

[0542] or,

[0543] the base sequence related information of the second signal comprises at least one of:

[0544] association information of generation parameters of a base sequence of the second signal;

[0545] a type of the base sequence of the second signal;

[0546] a length of the base sequence of the second signal.

[0547] Optionally, the association information comprises at least one of the following:

[0548] sensing service related information, information of a device participating in sensing, frequency domain resource related information, time domain resource related information, space domain resource related information, base sequence identification information.

[0549] Optionally, the sensing service related information comprises at least one of the following:

[0550] sensing measurement range identification, sensing area identification, sensing service identification, sensing service type, identification of whether used for sensing, identification of a sensing target, identification of a tag associated with the sensing target, number of sensing targets, sensing measurement quantity information.

[0551] Optionally, the space domain resource related information comprises at least one of the following:

[0552] port index, number of ports, code division multiplexing (CDM) group index, number of CDM groups, antenna index, antenna group index, antenna subarray index, antenna panel index, maximum number of antennas, maximum number of antenna groups, maximum number of antenna subarrays, maximum number of antenna panels.

[0553] Optionally, the sequence type comprises at least one of the following:

[0554] cell-specific reference signal sequence, area-specific reference signal sequence, terminal-specific reference signal sequence.

[0555] Optionally, the port related information of the first signal comprises at least one of the following:

[0556] first port number information, first port index information, indication for indicating whether a port corresponding to the first signal is occupied by the second signal, port information of a port corresponding to the second signal occupied by the first signal.

[0557] or,

[0558] the port related information of the second signal comprises at least one of the following:

[0559] second port number information, second port index information, indication for indicating whether a port corresponding to the second signal is occupied by the first signal.

[0560] Optionally, the first port number information comprises at least one of the following:

[0561] first total number of ports, number of ports invalid for the first signal, number of ports valid for the first signal, number of ports used for sensing, number of ports used for communication, number of general-purpose ports.

[0562] or,

[0563] The second port number information includes at least one of the following:

[0564] The second total port number, the port number invalid for the second signal, the port number valid for the second signal, the port number for sensing, the port number for communication, the general port number.

[0565] Optionally, the first port index information includes at least one of the following:

[0566] The total port index, the port index invalid for the first signal, the port index valid for the first signal, the port index for sensing, the port index for communication, the general port index.

[0567] Or,

[0568] The second port index information includes at least one of the following:

[0569] The total port index, the port index invalid for the second signal, the port index valid for the second signal, the port index for sensing, the port index for communication, the general port index.

[0570] Optionally, the first code division multiplexing information includes at least one of the following:

[0571] The code division multiplexing type, the indication for indicating code division multiplexing with the second signal.

[0572] Or,

[0573] The second code division multiplexing information includes at least one of the following:

[0574] The code division multiplexing type, the indication for indicating code division multiplexing with the first signal.

[0575] Optionally, in the case where the first frequency domain resource includes a plurality of the third frequency domain resources:

[0576] The port related information of the first signal or the first code division multiplexing information is configured in granularity of the third frequency domain resource; or

[0577] The port related information of the first signal or the first code division multiplexing information is shared by a plurality of the third frequency domain resources.

[0578] The sensing device can improve the communication rate.

[0579] The sensing device in the embodiments of the present application can be an electronic device, for example, an electronic device with an operating system, or a component in an electronic device, for example, an integrated circuit or a chip. The electronic device can be a terminal or a network side device.

[0580] The sensing device provided in the embodiment of the present application can achieve Figure 9 The various processes implemented in the method embodiment shown achieve the same technical effect, and to avoid repetition, they will not be described again here.

[0581] Optional, such as Figure 21 As shown, an embodiment of the present application further provides a communication device 2100, including a processor 2101 and a memory 2102, wherein the memory 2102 stores a program or instruction that can be run on the processor 2101. For example, when the communication device 2100 is a first device, the program or instruction is executed by the processor 2101 to implement the various steps of the above-mentioned signal sending method embodiment and can achieve the same technical effect. When the communication device 2100 is a second device, the program or instruction is executed by the processor 2101 to implement the various steps of the above-mentioned perception method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0582] An embodiment of the present application also provides a communication device, including a processor and a communication interface, wherein the communication interface is used to send a first signal for perception on a first frequency domain resource, and to send a second signal on a second frequency domain resource; wherein the time domain resources occupied by the first signal include the time domain resources occupied by the second signal, the first signal sent on a third frequency domain resource and the second signal sent on the third frequency domain resource are code division multiplexed, and the third frequency domain resource is a frequency domain resource where the first frequency domain resource and the second frequency domain resource overlap. This communication device embodiment corresponds to the above-mentioned signal transmission method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this communication device embodiment and can achieve the same technical effect.

[0583] Specifically, Figure 22 A schematic diagram of the hardware structure of a device for implementing an embodiment of the present application is provided, where the device is a first device or a second device.

[0584] The device 2200 includes but is not limited to: a radio frequency unit 2201, a network module 2202, an audio output unit 2203, an input unit 2204, a sensor 2205, a display unit 2206, a user input unit 2207, an interface unit 2208, a memory 2209 and at least some of the components of the processor 2210.

[0585] Those skilled in the art will understand that the device 2200 may also include a power supply (such as a battery) to power each component, and the power supply may be logically connected to the processor 2210 through a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system. Figure 22The device structure shown in the figure does not constitute a limitation on the device, and the device can include more or fewer components than the figure, or combine certain components, or different component arrangements, which are not described here.

[0586] It should be understood that in the embodiments of the present application, the input unit 2204 can include a graphics processing unit (GPU) 22041 and a microphone 22042. The graphics processing unit 22041 processes image data of a still picture or a video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 2206 can include a display panel 22061, which can be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 2207 includes at least one of a touch panel 22071 and other input devices 22072. The touch panel 22071 is also called a touch screen. The touch panel 22071 can include two parts of a touch detection device and a touch controller. The other input devices 22072 can include, but are not limited to, a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), a trackball, a mouse, an operating rod, etc., which are not described here.

[0587] In the embodiments of the present application, after the radio frequency unit 2201 receives the downlink data from the network side device, it can be transmitted to the processor 2210 for processing. In addition, the radio frequency unit 2201 can send uplink data to the network side device. Generally, the radio frequency unit 2201 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0588] The memory 2209 can be used to store software programs or instructions and various data. The memory 2209 can mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area can store an operating system, application programs or instructions required by at least one function (such as a sound playing function, an image playing function, etc.), and the like. In addition, the memory 2209 can include a volatile memory or a non-volatile memory, or the memory 2209 can include both volatile and non-volatile memories. The non-volatile memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a Random Access Memory (RAM), a Static RAM (SRAM), a Dynamic RAM (DRAM), a Synchronous DRAM (SDRAM), a Double Data Rate SDRAM (DDR SDRAM), an Enhanced SDRAM (ESDRAM), a Synch link DRAM (SLDRAM), and a Direct Rambus RAM (DRRAM). The memory 2209 in the embodiment of the present application includes but is not limited to these and any other suitable types of memories.

[0589] The processor 2210 can include one or more processing units; optionally, the processor 2210 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and an application program, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 2210.

[0590] In this embodiment, the above-mentioned device is taken as a first device, and the first device is taken as a terminal for illustration.

[0591] The radio frequency unit 2201 is configured to transmit a first signal for sensing on a first frequency domain resource, and transmit a second signal on a second frequency domain resource.

[0592] The time domain resource occupied by the first signal includes the time domain resource occupied by the second signal, the first signal transmitted on the third frequency domain resource is code division multiplexed with the second signal transmitted on the third frequency domain resource, and the third frequency domain resource is a frequency domain resource overlapping the first frequency domain resource and the second frequency domain resource.

[0593] Optionally, the first frequency domain resource includes the second frequency domain resource, and the third frequency domain resource is equal to the second frequency domain resource.

[0594] Optionally, the base sequence of the first signal is the same as the second signal on the third frequency domain resource, and the orthogonal cover code of the first signal is different from the second signal on the third frequency domain resource.

[0595] Optionally, the generation parameter of the base sequence of the first signal or the second signal is associated with at least one of the following:

[0596] The sensing service related information, the information of the device participating in sensing, the frequency domain resource related information, the time domain resource related information, the space domain resource related information, and the base sequence identification information.

[0597] Optionally, the processor 2210 or the radio frequency unit 2201 is further configured to perform at least one of the following:

[0598] Receive the signal configuration information of the first signal;

[0599] Receive the signal configuration information of the second signal;

[0600] Send the signal configuration information of the first signal to the second device;

[0601] Send the signal configuration information of the second signal to the second device.

[0602] Optionally, the signal configuration information of the first signal includes at least one of the following:

[0603] The base sequence related information of the first signal, the port related information of the first signal, and the first code division multiplexing information;

[0604] Or,

[0605] The signal configuration information of the second signal includes at least one of the following:

[0606] The base sequence related information of the second signal, the port related information of the second signal, and the second code division multiplexing information.

[0607] Optionally, the base sequence related information of the first signal includes at least one of the following:

[0608] The association information of the generation parameter of the base sequence of the first signal;

[0609] a sequence type of the base sequence of the first signal;

[0610] a length of the base sequence of the first signal;

[0611] or,

[0612] the base sequence related information of the second signal comprises at least one of:

[0613] association information of a generation parameter of the base sequence of the second signal;

[0614] a sequence type of the base sequence of the second signal;

[0615] a length of the base sequence of the second signal.

[0616] Optionally, the association information comprises at least one of:

[0617] sensing service related information, information of a device participating in sensing, frequency domain resource related information, time domain resource related information, space domain resource related information, base sequence identification information.

[0618] Optionally, the sensing service related information comprises at least one of:

[0619] sensing measurement range identification, sensing area identification, sensing service identification, sensing service type, identification of whether used for sensing, identification of a sensing target, identification of a tag associated with the sensing target, number of sensing targets, sensing measurement quantity information.

[0620] Optionally, the space domain resource related information comprises at least one of:

[0621] port index, number of ports, code division multiplexing (CDM) group index, number of CDM groups, antenna index, antenna group index, antenna subarray index, antenna panel index, maximum number of antennas, maximum number of antenna groups, maximum number of antenna subarrays, maximum number of antenna panels.

[0622] Optionally, the sequence type comprises at least one of:

[0623] cell-specific reference signal sequence, area-specific reference signal sequence, terminal-specific reference signal sequence.

[0624] Optionally, the port related information of the first signal comprises at least one of:

[0625] first port number information, first port index information, indication indicating whether a port corresponding to the first signal is occupied by the second signal, port information of a port corresponding to the second signal occupied by the first signal;

[0626] or,

[0627] The port-related information of the second signal includes at least one of the following:

[0628] Second port number information, second port index information, and an indication for indicating whether the port corresponding to the second signal is occupied by the first signal.

[0629] Optionally, the first port number information includes at least one of the following:

[0630] The first total number of ports, the number of ports invalid for the first signal, the number of ports valid for the first signal, the number of ports used for sensing, the number of ports used for communication, and the number of general ports;

[0631] or,

[0632] The second port number information includes at least one of the following:

[0633] The second total number of ports, the number of ports invalid for the second signal, the number of ports valid for the second signal, the number of ports used for sensing, the number of ports used for communication, and the number of general ports.

[0634] Optionally, the first port index information includes at least one of the following:

[0635] All port indexes, port indexes invalid for the first signal, port indexes valid for the first signal, port indexes used for sensing, port indexes used for communication, and general port indexes;

[0636] or,

[0637] The second port index information includes at least one of the following:

[0638] All port indexes, port indexes invalid for the second signal, port indexes valid for the second signal, port indexes used for sensing, port indexes used for communication, and general port indexes.

[0639] Optionally, the first code division multiplexing information includes at least one of the following:

[0640] A code division multiplexing type, an indication for indicating code division multiplexing with a second signal;

[0641] or,

[0642] The second code division multiplexing information includes at least one of the following:

[0643] The code division multiplexing type is used to indicate code division multiplexing with the first signal.

[0644] Optionally, in the case that the first frequency domain resource comprises a plurality of the third frequency domain resources:

[0645] The port-related information of the first signal or the first code division multiplexing information is configured in granularity of the third frequency domain resource; or

[0646] The port-related information of the first signal or the first code division multiplexing information is shared by a plurality of the third frequency domain resources.

[0647] Optionally, the first signal and a third signal are frequency division multiplexed or code division multiplexed on the first frequency domain resource, and the third signal is a signal for sensing transmitted by a third device;

[0648] Or,

[0649] The second signal and a fourth signal are frequency division multiplexed or code division multiplexed on the second frequency domain resource, and the fourth signal is a signal transmitted by a fourth device.

[0650] Optionally, in the case that the first signal and the third signal are code division multiplexed on the first frequency domain resource, the base sequence of the first signal is the same as that of the third signal, the orthogonal cover code of the first signal is different from that of the third signal, and the frequency domain resources occupied by the first signal and the third signal are the same;

[0651] Or,

[0652] In the case that the second signal and the fourth signal are code division multiplexed on the second frequency domain resource, the base sequence of the second signal is the same as that of the fourth signal, the orthogonal cover code of the second signal is different from that of the fourth signal, and the frequency domain resources occupied by the second signal and the fourth signal are the same.

[0653] Optionally, the third frequency domain resource comprises M frequency domain resources, the M frequency domain resources carry M second signals, the signal receiving devices of the M second signals are different, and the first signal carried on the M frequency domain resources is part of the sensing signals in the sensing service, and M is an integer greater than 1.

[0654] The above device can improve the communication rate.

[0655] It can be understood that the implementation process of each implementation manner mentioned in the embodiment can refer to the related description of the above measurement result sending method, and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0656] It should be noted that the above device can also implement the steps in the method shown in Figure 9 Or implement the method executed by each module shown in Figure 20 The above device can also implement the steps in the method shown in

[0657] The embodiment of the application further provides a device, comprising a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is configured to run programs or instructions to implement the steps of the method embodiment as shown in the method embodiment. Figure 9 The device embodiment corresponds to the sensing method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the device embodiment and achieve the same technical effects.

[0658] The embodiment of the application further provides a device, comprising a processor and a communication interface, wherein the communication interface is configured to perform sensing measurement on a first signal for sensing sent by a first device on a first frequency domain resource; wherein the time domain resource occupied by the first signal comprises the time domain resource occupied by the second signal, the first signal sent on a third frequency domain resource is code division multiplexed with the second signal sent on the third frequency domain resource, and the third frequency domain resource is a frequency domain resource overlapping the first frequency domain resource and the second frequency domain resource.

[0659] Specifically, the embodiment of the application further provides a device, which is a first device or a second device. As shown in the device embodiment, Figure 23 The device 2300 comprises an antenna 2301, a radio frequency device 2302, a baseband device 2303, a processor 2304 and a memory 2305. The antenna 2301 is connected with the radio frequency device 2302. In the uplink direction, the radio frequency device 2302 receives information through the antenna 2301, and sends the received information to the baseband device 2303 for processing. In the downlink direction, the baseband device 2303 processes the information to be sent, and sends the processed information to the radio frequency device 2302. The radio frequency device 2302 processes the received information, and sends the processed information through the antenna 2301.

[0660] The sensing method in the above embodiment can be implemented in the baseband device 2303, which comprises a baseband processor.

[0661] The baseband device 2303 can comprise at least one baseband board, for example, as shown in the baseband device, Figure 23 One of the chips is a baseband processor, for example, which is connected with the memory 2305 through a bus interface to call programs in the memory 2305 and execute the device operation shown in the above method embodiment.

[0662] The device can further comprise a network interface 2306, which is a common public radio interface (CPRI), for example.

[0663] Specifically, the device 2300 in the embodiments of the present application further includes instructions or programs stored on the memory 2305 and executable on the processor 2304, and the processor 2304 invokes the instructions or programs in the memory 2305 to perform the methods shown by the modules and achieve the same technical effects, so as not to be repeated here. Figure 20 The methods performed by the modules shown above and the same technical effects are achieved, so as not to be repeated here.

[0664] In the embodiments, the above device is taken as the second device for illustration.

[0665] The radio frequency device 2302 is configured to perform sensing measurement on the first signal for sensing sent by the first device on the first frequency domain resource.

[0666] The time domain resource occupied by the first signal includes the time domain resource occupied by the second signal, the first signal sent on the third frequency domain resource is code division multiplexed with the second signal sent on the third frequency domain resource, and the third frequency domain resource is the frequency domain resource overlapping the first frequency domain resource and the second frequency domain resource.

[0667] Optionally, the first frequency domain resource includes the second frequency domain resource, and the third frequency domain resource is equal to the second frequency domain resource.

[0668] Optionally, the base sequence of the first signal and the second signal on the third frequency domain resource is the same, and the orthogonal cover code of the first signal and the second signal on the third frequency domain resource is different.

[0669] Optionally, the generation parameter of the base sequence of the first signal or the second signal is associated with at least one of the following:

[0670] The sensing service related information, the information of the device participating in sensing, the frequency domain resource related information, the time domain resource related information, the space domain resource related information, and the base sequence identification information.

[0671] Optionally, the processor 2304 or the radio frequency device 2302 is further configured to perform at least one of the following:

[0672] Obtain the signal configuration information of the first signal;

[0673] Obtain the signal configuration information of the second signal;

[0674] Send the signal configuration information of the first signal to the first device;

[0675] Send the signal configuration information of the second signal to the first device.

[0676] Optionally, the signal configuration information of the first signal includes at least one of the following:

[0677] base sequence related information of the first signal, port related information of the first signal, and first code division multiplexing information;

[0678] or,

[0679] The signal configuration information of the second signal includes at least one of the following:

[0680] base sequence related information of the second signal, port related information of the second signal, and second code division multiplexing information.

[0681] Optionally, the base sequence related information of the first signal includes at least one of the following:

[0682] Association information of generation parameters of a base sequence of the first signal;

[0683] type of the base sequence of the first signal;

[0684] the length of the base sequence of the first signal;

[0685] or,

[0686] The base sequence related information of the second signal includes at least one of the following:

[0687] Association information of generation parameters of a base sequence of the second signal;

[0688] type of the base sequence of the second signal;

[0689] The length of the base sequence of the second signal.

[0690] Optionally, the association information includes at least one of the following:

[0691] Perception service related information, information about devices involved in perception, frequency domain resource related information, time domain resource related information, spatial domain resource related information, and base sequence identification information.

[0692] Optionally, the sensing service related information includes at least one of the following:

[0693] Perception measurement range identifier, perception area identifier, perception service identifier, perception service type, identifier of whether it is used for perception, perception target identifier, tag identifier associated with the perception target, number of perception targets, and perception measurement quantity information.

[0694] Optionally, the airspace resource-related information includes at least one of the following:

[0695] Port index, number of ports, code division multiplexing (CDM) group index, number of CDM groups, antenna index, antenna group index, antenna subarray index, antenna panel index, maximum number of antennas, maximum number of antenna groups, maximum number of antenna subarrays, maximum number of antenna panels.

[0696] Optionally, the sequence type comprises at least one of:

[0697] a cell-specific reference signal sequence, a zone-specific reference signal sequence, a terminal-specific reference signal sequence.

[0698] Optionally, the port-related information of the first signal comprises at least one of:

[0699] first port number information, first port index information, an indication for indicating whether a port corresponding to the first signal is occupied by the second signal, port information of a port corresponding to the second signal being occupied by the first signal.

[0700] or,

[0701] the port-related information of the second signal comprises at least one of:

[0702] second port number information, second port index information, an indication for indicating whether a port corresponding to the second signal is occupied by the first signal.

[0703] Optionally, the first port number information comprises at least one of:

[0704] a first total port number, a port number invalid for the first signal, a port number valid for the first signal, a port number for sensing, a port number for communication, a general port number.

[0705] or,

[0706] the second port number information comprises at least one of:

[0707] a second total port number, a port number invalid for the second signal, a port number valid for the second signal, a port number for sensing, a port number for communication, a general port number.

[0708] Optionally, the first port index information comprises at least one of:

[0709] all port indexes, port indexes invalid for the first signal, port indexes valid for the first signal, port indexes for sensing, port indexes for communication, general port indexes.

[0710] or,

[0711] the second port index information comprises at least one of:

[0712] all port indexes, port indexes invalid for the second signal, port indexes valid for the second signal, port indexes for sensing, port indexes for communication, general port indexes.

[0713] Optionally, the first code division multiplexing information comprises at least one of:

[0714] a code division multiplexing type, an indication for indicating code division multiplexing with the second signal.

[0715] or,

[0716] The second code division multiplexing information comprises at least one of:

[0717] a code division multiplexing type, an indication for indicating code division multiplexing with the first signal.

[0718] Optionally, in a case where the first frequency domain resource comprises a plurality of the third frequency domain resources:

[0719] the port related information of the first signal or the first code division multiplexing information is configured in granularity of the third frequency domain resource; or

[0720] the port related information of the first signal or the first code division multiplexing information is common to a plurality of the third frequency domain resources.

[0721] The above device can improve the communication rate.

[0722] It can be understood that the implementation process of each implementation manner mentioned in the embodiment can refer to the related description of the above method embodiment, and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0723] It should be noted that the above device can also implement the steps in the method shown in Figure 4 or implement the method executed by each module shown in Figure 20 .

[0724] The embodiment of the present application also provides a readable storage medium, the readable storage medium stores a program or instructions, the program or instructions are executed by a processor to implement each process of the above signal sending method or sensing method embodiment, and the same technical effects can be achieved. To avoid repetition, it will not be repeated here.

[0725] The processor is the processor in the terminal in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer readable memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc. In some examples, the readable storage medium can be a non-transitory readable storage medium.

[0726] The chip provided by the embodiment of the present application also can be called a system chip, a chip system, a system on chip, or the like.

[0727] It should be understood that the chip mentioned in the embodiment of the present application can also be called a system chip, a chip system, a system on chip, or the like.

[0728] The embodiment of the present application further provides a computer program / program product stored in a storage medium, and the computer program / program product is executed by at least one processor to implement the processes of the above-mentioned signal sending method or sensing method embodiments, and the same technical effects can be achieved. To avoid repetition, details are not repeated here.

[0729] The embodiment of the present application further provides a wireless communication system, including a first device and a second device, the first device can be used to execute the steps of the signal sending method provided by the embodiment of the present application, and the second device can be used to execute the steps of the sensing method provided by the embodiment of the present application.

[0730] It should be noted that in this document, the terms "comprising", "containing", or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such a process, method, article or device. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the present application is not limited to the order of performing the functions shown or discussed, but can also include performing the functions in a substantially simultaneous manner or in reverse order, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted or combined. In addition, the features described with reference to some examples can be combined in other examples.

[0731] From the above description of the embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment method can be realized by means of computer software product and general hardware platform, of course, it can also be realized by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.), and includes a plurality of instructions for making the terminal or network side device execute the method described in each embodiment of the present application.

[0732] The embodiments of the present application are described above with reference to the accompanying drawings, but the present application is not limited to the above-described specific embodiments, and the above-described specific embodiments are merely illustrative, but not restrictive, and a person of ordinary skill in the art can make many forms of embodiments under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims, and these embodiments all belong to the protection of the present application.

Claims

1. A signal transmission method characterized by, Comprising: The first device transmits a first signal for sensing on a first frequency domain resource, and transmits a second signal on a second frequency domain resource; Wherein, the time domain resource occupied by the first signal includes the time domain resource occupied by the second signal, the first signal transmitted on a third frequency domain resource is code division multiplexed with the second signal transmitted on the third frequency domain resource, and the third frequency domain resource is a frequency domain resource overlapping the first frequency domain resource and the second frequency domain resource.

2. The method of claim 1, wherein, The first frequency domain resource includes the second frequency domain resource, and the third frequency domain resource is equal to the second frequency domain resource.

3. The method of claim 1 or 2, wherein, The base sequence of the first signal and the second signal on the third frequency domain resource is the same, and the orthogonal cover code of the first signal and the second signal on the third frequency domain resource is different.

4. The method of any one of claims 1 to 3, wherein, The generation parameter of the base sequence of the first signal or the second signal is associated with at least one of the following: Sensing service related information, information of a device participating in sensing, frequency domain resource related information, time domain resource related information, spatial domain resource related information, base sequence identification information.

5. The method of any one of claims 1 to 4, wherein, The method further comprises at least one of the following: The first device receives signal configuration information of the first signal; The first device receives signal configuration information of the second signal; The first device transmits signal configuration information of the first signal to a second device; The first device transmits signal configuration information of the second signal to a second device; Wherein, the signal configuration information of the first signal comprises at least one of the following: Base sequence related information of the first signal, port related information of the first signal, first code division multiplexing information; Or, The signal configuration information of the second signal comprises at least one of the following: Base sequence related information of the second signal, port related information of the second signal, second code division multiplexing information.

6. The method of claim 5, wherein, The base sequence related information of the first signal comprises at least one of the following: Association information of the generation parameter of the base sequence of the first signal; Sequence type of the base sequence of the first signal; Length of the base sequence of the first signal; Or, The base sequence related information of the second signal comprises at least one of the following: Association information of the generation parameter of the base sequence of the second signal; Sequence type of the base sequence of the second signal; Length of the base sequence of the second signal; Wherein, the association information comprises at least one of the following: Sensing service related information, information of a device participating in sensing, frequency domain resource related information, time domain resource related information, spatial domain resource related information, base sequence identification information.

7. The method of claim 4 or 6, wherein, The sensing service related information comprises at least one of the following: Sensing measurement range identification, sensing area identification, sensing service identification, sensing service type, identification of whether used for sensing, identification of a sensing target, identification of a tag associated with a sensing target, number of sensing targets, sensing measurement quantity information.

8. The method of claim 4 or 6, wherein, The spatial domain resource related information comprises at least one of the following: Port index, number of ports, code division multiplexing (CDM) group index, number of CDM groups, antenna index, antenna group index, antenna subarray index, antenna panel index, maximum number of antennas, maximum number of antenna groups, maximum number of antenna subarrays, maximum number of antenna panels.

9. The method of claim 6, wherein, The sequence type comprises at least one of the following: A cell-specific reference signal sequence, a zone-specific reference signal sequence, and a terminal-specific reference signal sequence.

10. The method according to any one of claims 5 to 9, characterized in that, The port-related information of the first signal comprises at least one of the following: First port number information, first port index information, an indication for indicating whether a port corresponding to the first signal is occupied by the second signal, and port information of a port corresponding to the second signal occupied by the first signal. Or, The port-related information of the second signal comprises at least one of the following: Second port number information, second port index information, and an indication for indicating whether a port corresponding to the second signal is occupied by the first signal.

11. The method of claim 10, wherein, The first port number information comprises at least one of the following: A first total port number, a port number invalid for the first signal, a port number valid for the first signal, a port number for sensing, a port number for communication, and a general port number. Or, The second port number information comprises at least one of the following: A second total port number, a port number invalid for the second signal, a port number valid for the second signal, a port number for sensing, a port number for communication, and a general port number.

12. The method of claim 10 or 11, wherein, The first port index information comprises at least one of the following: All port indexes, port indexes invalid for the first signal, port indexes valid for the first signal, port indexes for sensing, port indexes for communication, and general port indexes. Or, The second port index information comprises at least one of the following: All port indexes, port indexes invalid for the second signal, port indexes valid for the second signal, port indexes for sensing, port indexes for communication, and general port indexes.

13. The method of any one of claims 5 to 12, wherein, The first code division multiplexing information comprises at least one of the following: A code division multiplexing type and an indication for indicating code division multiplexing with the second signal. Or, The second code division multiplexing information comprises at least one of the following: A code division multiplexing type and an indication for indicating code division multiplexing with the first signal.

14. The method of any one of claims 5 to 13, wherein, In a case where the first frequency domain resource comprises a plurality of the third frequency domain resources: The port-related information of the first signal or the first code division multiplexing information is configured in granularity of the third frequency domain resource; or The port-related information of the first signal or the first code division multiplexing information is shared by a plurality of the third frequency domain resources.

15. The method of any one of claims 1 to 14, wherein, The first signal is frequency division multiplexed or code division multiplexed with a third signal on the first frequency domain resource, and the third signal is a signal for sensing transmitted by a third device. Or, The second signal is frequency division multiplexed or code division multiplexed with a fourth signal on the second frequency domain resource, and the fourth signal is a signal transmitted by a fourth device.

16. The method of claim 15, wherein, In a case where the first signal is code division multiplexed with the third signal on the first frequency domain resource, the first signal and the third signal have a same base sequence but different orthogonal cover codes, and the first signal and the third signal occupy a same frequency domain resource. Or, In a case that the second signal and the fourth signal are code division multiplexed on the second frequency domain resource, the second signal and the fourth signal have a same base sequence, and the second signal and the fourth signal have different orthogonal cover codes, and the second signal and the fourth signal occupy a same frequency domain resource.

17. The method of any one of claims 1 to 16, wherein, The third frequency domain resource includes M frequency domain resources, the M frequency domain resources carry M second signals, the M second signals have different signal receiving devices, and the first signal carried on the M frequency domain resources is part of the sensing signal in the sensing service, and M is an integer greater than 1.

18. A perception method comprising: Comprise: The second device performs sensing measurement on the first device sending the first signal for sensing on the first frequency domain resource; The time domain resource occupied by the first signal includes the time domain resource occupied by the second signal, the first signal sent on the third frequency domain resource is code division multiplexed with the second signal sent on the third frequency domain resource, and the third frequency domain resource is a frequency domain resource overlapping the first frequency domain resource and the second frequency domain resource.

19. The method of claim 18, wherein, The first frequency domain resource includes the second frequency domain resource, and the third frequency domain resource is equal to the second frequency domain resource.

20. The method of claim 18 or 19, wherein, The base sequence of the first signal on the third frequency domain resource is the same as that of the second signal, and the orthogonal cover code of the first signal on the third frequency domain resource is different from that of the second signal.

21. The method of any one of claims 18 to 20, wherein, The method further comprises at least one of the following: The second device receives signal configuration information of the first signal; The second device receives signal configuration information of the second signal; The second device sends signal configuration information of the first signal to the first device; The second device sends signal configuration information of the second signal to the first device; The signal configuration information of the first signal comprises at least one of the following: The base sequence related information of the first signal, the port related information of the first signal, the first code division multiplexing information; Or, The signal configuration information of the second signal comprises at least one of the following: The base sequence related information of the second signal, the port related information of the second signal, the second code division multiplexing information.

22. The method of claim 21, wherein, The base sequence related information of the first signal comprises at least one of the following: The association information of the generation parameter of the base sequence of the first signal; The type of the base sequence of the first signal; The length of the base sequence of the first signal; Or, The base sequence related information of the second signal comprises at least one of the following: The association information of the generation parameter of the base sequence of the second signal; The type of the base sequence of the second signal; The length of the base sequence of the second signal; The association information comprises at least one of the following: The sensing service related information, the information of the device participating in sensing, the frequency domain resource related information, the time domain resource related information, the space domain resource related information, and the base sequence identification information.

23. The method of claim 21 or 22, wherein, The port related information of the first signal comprises at least one of the following: The first port number information, the first port index information, the indication indicating whether the port corresponding to the first signal is occupied by the second signal, and the port information of the port corresponding to the second signal occupied by the first signal; Or, The port-related information of the second signal comprises at least one of the following: Second port number information, second port index information, and an indication indicating whether a port corresponding to the second signal is occupied by the first signal.

24. The method of claim 23, wherein, The first port number information comprises at least one of the following: A first total port number, a port number invalid for the first signal, a port number valid for the first signal, a port number for sensing, a port number for communication, and a general port number; Or, The second port number information comprises at least one of the following: A second total port number, a port number invalid for the second signal, a port number valid for the second signal, a port number for sensing, a port number for communication, and a general port number.

25. The method of claim 24 or 24, wherein, The first port index information comprises at least one of the following: All port indexes, port indexes invalid for the first signal, port indexes valid for the first signal, port indexes for sensing, port indexes for communication, and general port indexes; Or, The second port index information comprises at least one of the following: All port indexes, port indexes invalid for the second signal, port indexes valid for the second signal, port indexes for sensing, port indexes for communication, and general port indexes.

26. The method of any one of claims 21 to 25, wherein, The first code division multiplexing information comprises at least one of the following: A code division multiplexing type and an indication indicating code division multiplexing with the second signal; Or, The second code division multiplexing information comprises at least one of the following: A code division multiplexing type and an indication indicating code division multiplexing with the first signal.

27. A signal sending apparatus, characterized by comprising: Comprise: A first sending module configured to send a first signal for sensing on a first frequency domain resource and send a second signal on a second frequency domain resource; Wherein, a time domain resource occupied by the first signal comprises a time domain resource occupied by the second signal, the first signal sent on a third frequency domain resource is code division multiplexed with the second signal sent on the third frequency domain resource, and the third frequency domain resource is a frequency domain resource overlapping the first frequency domain resource and the second frequency domain resource.

28. The apparatus of claim 27, wherein, The first signal and the second signal have a same base sequence on the third frequency domain resource, and the first signal and the second signal have different orthogonal cover codes on the third frequency domain resource.

29. The apparatus of claim 27 or 28, wherein, The apparatus further comprises at least one of the following: A first obtaining module configured to obtain signal configuration information of the first signal; A second obtaining module configured to obtain signal configuration information of the second signal; A second sending module configured to send the signal configuration information of the first signal to a second device; A third sending module configured to send the signal configuration information of the second signal to a second device; Wherein, the signal configuration information of the first signal comprises at least one of the following: Base sequence-related information of the first signal, port-related information of the first signal, and first code division multiplexing information; Or, The signal configuration information of the second signal comprises at least one of the following: Base sequence-related information of the second signal, port-related information of the second signal, and second code division multiplexing information.

30. A sensing device, comprising: Comprise: The perception module is configured to perform a sensing measurement on a first signal for sensing transmitted by the first device on a first frequency domain resource. The time domain resource occupied by the first signal includes the time domain resource occupied by the second signal, the first signal transmitted on a third frequency domain resource is code division multiplexed with the second signal transmitted on the third frequency domain resource, and the third frequency domain resource is a frequency domain resource overlapping the first frequency domain resource and a second frequency domain resource.

31. The apparatus of claim 30, wherein, The base sequence of the first signal is the same as that of the second signal on the third frequency domain resource, and the orthogonal cover code of the first signal is different from that of the second signal on the third frequency domain resource.

32. The apparatus of claim 30 or 31, wherein, The apparatus further includes at least one of the following: The first obtaining module is configured to obtain signal configuration information of the first signal. The second obtaining module is configured to obtain signal configuration information of the second signal. The first sending module is configured to send the signal configuration information of the first signal to the first device. The second sending module is configured to send the signal configuration information of the second signal to the first device.

33. An apparatus, comprising: The apparatus includes a processor and a memory, the memory stores programs or instructions executable on the processor, and the programs or instructions are executed by the processor to implement the steps of the signal transmission method according to any one of claims 1 to 17, or the programs or instructions are executed by the processor to implement the steps of the signal transmission method according to any one of claims 18 to 26.

34. A readable storage medium, characterized by The readable storage medium stores programs or instructions, and the programs or instructions are executed by the processor to implement the steps of the signal transmission method according to any one of claims 1 to 17, or implement the steps of the signal transmission method according to any one of claims 18 to 26.

35. A computer program product, characterised in that, The computer program product is stored in a storage medium, and the computer program product is executed by at least one processor to implement the steps of the signal transmission method according to any one of claims 1 to 17, or implement the steps of the signal transmission method according to any one of claims 18 to 26.

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