Signal sending method, signal receiving method and device

Abstract

Disclosed are a signal transmitting method, a signal receiving method, and devices, belonging to the technical field of communications, the signal transmitting method of the embodiment of the present application comprising: a first device generating a signal based on a first sequence and a second sequence, the first sequence being a sequence associated with a frequency domain resource, and the second sequence being a sequence associated with a time domain resource; and the first device sends the signal.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a signal sending method, a receiving method end and a device. Background Art

[0002] In a communication system, communication or measurement is mainly carried out through communication signals, and the sequence of communication signals is often associated with resources in only one dimension. For example, the sequence of communication signals is a sequence associated with frequency domain resources. This causes the communication signal to have related characteristics in one dimension, such as only having related characteristics in the frequency domain dimension, which in turn leads to poor communication performance of the communication device. Summary of the invention

[0003] The embodiments of the present application provide a signal sending method, a receiving method end and a device, which can solve the problem of poor communication performance of communication equipment.

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

[0005] The first device generates a signal based on a first sequence and a second sequence, where the first sequence is a sequence associated with frequency domain resources, and the second sequence is a sequence associated with time domain resources;

[0006] The first device sends the signal

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

[0008] The second device receives a signal, where the signal is a signal generated based on a first sequence and a second sequence, where the first sequence is a sequence associated with frequency domain resources, and the second sequence is a sequence associated with time domain resources.

[0009] In a third aspect, a signal sending device is provided, including:

[0010] A generating module, configured to generate a signal based on a first sequence and a second sequence, wherein the first sequence is a sequence associated with frequency domain resources, and the second sequence is a sequence associated with time domain resources;

[0011] The first sending module is used to send the signal.

[0012] In a fourth aspect, a signal receiving device is provided, including:

[0013] The first receiving module is used to receive a signal, where the signal is a signal generated based on a first sequence and a second sequence, where the first sequence is a sequence associated with frequency domain resources, and the second sequence is a sequence associated with time domain resources.

[0014] In a fifth aspect, a device is provided, which includes a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the signal sending method as described in the embodiment of the present application are implemented, and when the program or instruction is executed by the processor, the steps of the signal receiving method as described in the embodiment of the present application are implemented.

[0015] In a sixth aspect, a device is provided, comprising a processor and a communication interface, wherein the processor is used to generate a signal based on a first sequence and a second sequence, the first sequence is a sequence associated with frequency domain resources, the second sequence is a sequence associated with time domain resources, and the communication interface is used to send the signal; or, the communication interface is used to receive a signal, the signal is a signal generated based on the first sequence and the second sequence, the first sequence is a sequence associated with frequency domain resources, and the second sequence is a sequence associated with time domain resources.

[0016] In the seventh aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the signal sending method described in the embodiment of the present application are implemented, or the steps of the signal receiving method described in the embodiment of the present application are implemented.

[0017] In an eighth aspect, a wireless communication system is provided, comprising: a first device and a second device, wherein the first device can be used to execute the steps of the signal sending method as described in the embodiment of the present application, and the second device can be used to execute the steps of the signal receiving method as described in the embodiment of the present application.

[0018] In the ninth aspect, a chip is provided, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the signal sending method as described in the embodiment of the present application, or to implement the signal receiving method as described in the embodiment of the present application.

[0019] In the tenth aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a storage medium, and the program / program product is executed by at least one processor to implement the steps of the signal sending method as described in the embodiments of the present application, or the program / program product is executed by at least one processor to implement the steps of the signal receiving method as described in the embodiments of the present application.

[0020] In an embodiment of the present application, a first device generates a signal based on a first sequence and a second sequence, wherein the first sequence is a sequence associated with frequency domain resources, and the second sequence is a sequence associated with time domain resources; and the first device sends the signal. In this way, since the signal is generated based on the first sequence and the second sequence, and the first sequence is a sequence associated with frequency domain resources, and the second sequence is a sequence associated with time domain resources, the signal has relevant characteristics in both the frequency domain dimension and the time domain dimension, thereby improving the characteristics of the signal, and further improving the communication performance of the communication device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a block diagram of a wireless communication system to which the embodiments of the present application can be applied;

[0022] Figure 2 is a schematic diagram of a perception measurement scenario provided by an embodiment of the present application;

[0023] Figure 3 is a flow chart of a signal sending method provided in an embodiment of the present application;

[0024] Figure 4 is a schematic diagram of a sequence interception provided in an embodiment of the present application;

[0025] Figure 5 It is a flow chart of a receiving and sending method provided by an embodiment of the present application;

[0026] Figure 6 It is a schematic diagram of a regional division provided in an embodiment of the present application;

[0027] Figure 7 is a schematic diagram of another area division provided in an embodiment of the present application;

[0028] Figure 8 is a schematic diagram of a signal waveform provided in an embodiment of the present application;

[0029] Figures 9a to 9d is a schematic diagram of a measurement performance provided by an embodiment of the present application;

[0030] Fig.10 is a structural diagram of a signal sending device provided in an embodiment of the present application;

[0031] Fig.11 is a structural diagram of a signal receiving device provided in an embodiment of the present application;

[0032] Fig.12 is a structural diagram of a communication device provided in an embodiment of the present application;

[0033] Fig.13 is a structural diagram of another communication device provided in an embodiment of the present application;

[0034] Fig.14 It is a structural diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0036] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of one type, and the number of objects is not limited, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three schemes, namely, Scheme 1: including A but not including B; Scheme 2: including B but not including A; Scheme 3: including both A and B. The character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0037] The term "indication" in this application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, operations to be performed, or request results in the sent indication; an indirect indication can be understood as the receiver determining the corresponding information according to the indication sent by the sender, or making a judgment and determining the operation to be performed or the request result according to the judgment result.

[0038] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following descriptions, but these technologies can also be applied to systems other than NR systems, such as the 6th generation (6 th Generation, 6G) communication system.

[0039] Figure 1A block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (Ultra-mobile Personal Computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (Augmented Reality, AR), a virtual reality (Virtual Reality, VR) device, a robot, a wearable device (Wearable Device), an aircraft (flight vehicle), a vehicle-mounted device (Vehicle User Equipment, VUE), a ship-mounted device, a pedestrian terminal (Pedestrian User Equipment, PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), a game console, a personal computer (Personal Computer, PC), a teller machine or a self-service machine and other terminal side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be referred to as a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (Wireless Local Area Network, WLAN) access point (Access Point, AP) or a wireless fidelity (Wireless Fidelity, WiFi) node, etc.Among them, the base station may 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 other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0040] The core network equipment may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (Mobility Management Entity, MME), access mobility management function (Access and Mobility Management Function, AMF), session management function (Session Management Function, SMF), user plane function (User Plane Function, UPF), policy control function (Policy Control Function, PCF), policy and charging rules function unit (Policy and Charging Rules Function, PCRF), edge application service discovery function (Edge Application Server Discovery Function, EASDF), unified data management (Unified Data Management, UDM), unified data storage (Unified Data Repository, UDR), home user server (Home Subscriber Server, HSS), centralized network configuration (CNC), network storage function (Network Repository Function, NRF), network exposure function (Network Exposure Function, NEF), local NEF (Local NEF, or L-NEF), binding support function (Binding Support Function, BSF), application function (Application Function, AF), etc. It should be noted that in the embodiments of the present application, only the core network device in the NR system is introduced as an example, and the specific type of the core network device is not limited.

[0041] In some communication systems, for communication services, the corresponding reference signal sequence is usually generated according to the frequency domain dimension (or subcarrier dimension) and frequency domain mapping is performed. The reference signal sequence corresponding to the frequency domain dimension has good correlation characteristics. The reference signal sequences corresponding to different time domain positions are generated in different ways (associated with the time slot number and / or symbol number), and the receiving end processing is also usually performed along the frequency domain dimension.

[0042] For example: For Orthogonal Frequency Division Multiplexing (OFDM) baseband transmission signals Where l represents the symbol index, k represents the subcarrier index, Δf represents the subcarrier spacing, and T O represents the OFDM symbol duration (including the cyclic prefix (CP)), M represents the number of symbols, N represents the number of subcarriers, and c(k, l) represents the modulation data corresponding to subcarrier k and symbol l.

[0043] Among them, the sequence along the frequency domain dimension, that is, for the same symbol l0, the sequence {c(0, l0), c(1, l0),…, c(N-1, l0)} is usually generated based on a specially designed sequence with good correlation characteristics (such as a pseudo-random sequence or a ZC sequence); while the sequence along the time domain dimension, that is, for the same subcarrier k0, the sequence {c(k0, 0), c(k0, 1),…, c(k0, M-1)} is not specially considered or designed.

[0044] In some embodiments, the network side devices and terminals may have perception capabilities in addition to communication capabilities. Perception capabilities refer to one or more devices with perception capabilities that can sense the direction, distance, speed and other information of target objects through the transmission and reception of wireless signals, or detect, track, identify, image and the like the target objects, events or environments. Some perception functions and application scenarios are shown in Table 1:

[0045] Table 1

[0046]

[0047] It should be noted that the perception category shown in Table 1 above is only an example, and the category of perception measurement is not limited in the embodiments of the present application.

[0048] In addition, the embodiments of the present application can be applied to the communication and perception integration scenario, where communication and perception integration refers to the integrated design of communication and perception functions through spectrum sharing and hardware sharing in the same system. While transmitting information, the system can perceive information such as direction, distance, speed, and detect, track, and identify target devices or events. The communication system and the perception system complement each other to achieve overall performance improvement and bring a better service experience.

[0049] For example: the integration of communication and radar is a typical communication-perception integration (communication-perception fusion) application, and the integration of communication and radar systems can bring many advantages, such as cost savings, size reduction, power consumption reduction, improved spectrum efficiency, reduced mutual interference, etc., thereby improving the overall performance of the system.

[0050] In the embodiment of the present application, according to the difference between the sensing signal sending node and the receiving node, it may include but is not limited to Figure 2 The six sensing links shown in FIG. Figure 2Each perception link is illustrated by a sending node and a receiving node. In the actual system, different perception links can be selected according to different perception requirements. Each perception link can have one or more sending nodes and receiving nodes, and the actual perception system can include multiple different perception links. Figure 2 The perception targets in the example are people and cars, and it is assumed that people and cars do not carry or install signal receiving / transmitting equipment. The perception targets in actual scenes will be richer.

[0051] Sensing link 1: The base station sends and receives sensing signals on its own. In this mode, the base station sends sensing signals and obtains sensing results by receiving the echo of the sensing signals.

[0052] Sensing link 2: air interface sensing between base stations. In this mode, base station 2 receives the sensing signal sent by base station 1 and obtains the sensing result.

[0053] Perception link 3: Uplink air interface perception. In this mode, the base station receives the perception signal sent by the terminal and obtains the perception result.

[0054] Perception link 4: Downlink air interface perception. In this mode, the terminal receives the perception signal sent by the base station and obtains the perception result.

[0055] Perception link 5: Terminal self-transmitting and self-receiving perception. In this mode, the terminal sends a perception signal and obtains the perception result by receiving the echo of the perception signal.

[0056] Perception link 6: Sidelink perception between terminals. For example, terminal 2 receives a perception signal sent by terminal 1 to obtain a perception result, or terminal 1 receives a perception signal sent by terminal 2 to obtain a perception result.

[0057] In the following, in combination with the accompanying drawings, a signal sending method, a receiving method end and a device provided in an embodiment of the present application are described in detail through some embodiments and their application scenarios.

[0058] See also Figure 3 , Figure 3 is a flow chart of a signal sending method provided in an embodiment of the present application, such as Figure 3 As shown, the following steps are included:

[0059] Step 301: A first device generates a signal based on a first sequence and a second sequence, where the first sequence is a sequence associated with frequency domain resources, and the second sequence is a sequence associated with time domain resources.

[0060] Among them, the above-mentioned first device can be a network side device or a terminal.

[0061] The above-mentioned first sequence is a sequence associated with the frequency domain resources, which can also be called that the first sequence is a sequence in the frequency domain dimension, or the first sequence is a sequence along the frequency domain dimension.

[0062] In some implementations, the first sequence is a sequence used for mapping on frequency domain resources, or a sequence used for mapping along frequency domain resources.

[0063] The second sequence being a sequence associated with the time domain resource may also be referred to as the second sequence being a sequence in the time domain dimension, or the second sequence being a sequence along the time domain dimension.

[0064] In some implementations, the second sequence is a sequence used for mapping on time domain resources, or a sequence used for mapping along time domain resources.

[0065] In some embodiments, the first device generates a signal based on the first sequence and the second sequence, which may be a signal having frequency domain dimension characteristics of the first sequence and time domain dimension characteristics of the second sequence.

[0066] Step 302: The first device sends the signal.

[0067] The first device sending the signal may be that the first device sends the signal to the second device, or the first device sends and receives the signal by itself.

[0068] In an embodiment of the present application, since the above-mentioned signal is generated based on the first sequence and the second sequence, and the first sequence is a sequence associated with frequency domain resources, and the second sequence is a sequence associated with time domain resources, the signal has relevant characteristics in both the frequency domain dimension and the time domain dimension, thereby improving the characteristics of the signal, and then improving the communication performance of the communication device, wherein the communication performance includes perception performance or communication measurement performance. For example: when the above-mentioned target signal is used for perception measurement, since the frequency domain dimension characteristics are associated with the ranging performance, and the time domain dimension characteristics are associated with the speed measurement performance, this can improve the ranging performance and speed measurement performance of the perception measurement.

[0069] In some embodiments, the above-mentioned signal can also be called a two-dimensional signal in the time-frequency domain. Since the two-dimensional signal is generated based on the first sequence and the second sequence, the two-dimensional signal can have good correlation characteristics along the time domain dimension and the frequency domain dimension. The good correlation characteristic refers to a higher autocorrelation peak, a lower autocorrelation sidelobe value, or a lower cross-correlation peak.

[0070] As an optional implementation manner, the N sequence elements in the sequence associated with the frequency domain resources are respectively associated with N frequency domain resources, where N is an integer greater than 1; or,

[0071] The M sequence elements in the sequence associated with the time domain resources are respectively associated with M time domain resources, where M is an integer greater than 1.

[0072] Among them, the above-mentioned N frequency domain resources and M time domain resources may be the transmission resources of the above-mentioned signal, that is, the transmission resources of the above-mentioned signal include the above-mentioned N frequency domain resources and M time domain resources.

[0073] The N sequence elements are respectively associated with the N frequency domain resources, and the N sequence elements correspond to the N frequency domain resources one by one.

[0074] The M sequence elements are respectively associated with the M time domain resources, and the M sequence elements correspond to the M time domain resources one by one.

[0075] In this implementation, since the N sequence elements in the sequence associated with the frequency domain resources are respectively associated with the N frequency domain resources, the above-mentioned signal can have good correlation characteristics in the frequency domain dimension, and the M sequence elements in the sequence associated with the time domain resources are respectively associated with the M time domain resources, the above-mentioned signal can have good correlation characteristics in the time domain dimension.

[0076] For example: The first sequence is represented by x = [x(0), x(1), ..., x(N-1)] T , the second sequence is expressed as y=[y(0),y(1),…,y(M-1)].

[0077] As an optional implementation, the length of the first sequence is associated with at least one of the following:

[0078] The frequency domain resource length of the transmission resource, the frequency domain resource interval of the transmission resource; or,

[0079] The length of the second sequence is associated with at least one of the following:

[0080] The time domain resource length of the transmission resource and the time domain resource interval of the transmission resource;

[0081] The transmission resource is a transmission resource of the signal.

[0082] The frequency domain resource length of the above transmission resources may be the bandwidth of the transmission resources or the number of resource blocks (ResourceBlock, RB), or the number of subcarriers, and the frequency domain resource interval of the above transmission resources may be the frequency domain resource density of the transmission resources.

[0083] The association between the length of the first sequence and the frequency domain resource length of the transmission resource can be that the length of the first sequence is determined according to the frequency domain resource length of the transmission resource, such as making the length of the first sequence able to satisfy the signal mapping of the transmission resource of the frequency domain resource length.

[0084] The length of the first sequence and the frequency domain resource interval of the transmission resource may be determined according to the frequency domain resource interval of the transmission resource.

[0085] The time domain resource length of the above-mentioned transmission resources may be the coherent processing time length, the number of symbols, etc. of the transmission resources, and the time domain resource interval of the above-mentioned transmission resources may be the time resource density of the transmission resources.

[0086] The association between the length of the second sequence and the time domain resource length of the transmission resource can be that the length of the second sequence is determined according to the time domain resource length of the transmission resource, such as making the length of the second sequence able to satisfy the signal mapping of the transmission resource of the time domain resource length.

[0087] The length of the second sequence and the time domain resource interval of the transmission resource may be determined according to the time domain resource interval of the transmission resource.

[0088] In this implementation, since the length of the first sequence or the length of the second sequence is associated with at least one of the above items, the above signal can be better mapped to the above transmission resource to improve the transmission performance of the above signal.

[0089] As an optional implementation manner, the first device generating a signal based on the first sequence and the second sequence includes:

[0090] The signal is obtained by performing phase rotation on the first sequence based on the second sequence.

[0091] In some embodiments, the signal obtained by performing phase rotation on the first sequence based on the second sequence may be obtained by performing phase rotation on the first sequence according to each element in the second sequence, that is, any element in the second sequence performs phase rotation on all elements in the first sequence, so that the first sequence is generated only once, for example, the first sequence is generated only once in the first symbol, and a two-dimensional signal can be generated.

[0092] In some implementations, performing phase rotation on the first sequence based on the second sequence to obtain the signal includes:

[0093] The first sequence is phase rotated M times based on the M elements in the second sequence to obtain M sequences, and the signal includes the M sequences, where M is an integer greater than 1.

[0094] For example: The first sequence is represented by x0 = [x0(0), x0(1), ..., x0(N-1)] T, the second sequence is expressed as y=[y(0), y(1), …, y(M-1)], and thus a two-dimensional sequence is obtained by performing phase rotation on the same first sequence according to any element in the second sequence, i.e., a sequence corresponding to different time domain resource units (e.g., symbols): z(n, m)=x0(n)·y(m), where 0≤n≤N-1, 0≤m≤M-1.

[0095] The signal obtained by performing phase rotation on the first sequence based on the second sequence can be expressed as a two-dimensional sequence z(n, m), 0≤n≤N-1, 0≤m≤M-1.

[0096] In this implementation, since the first sequence is phase rotated based on the second sequence, the obtained signal can also have good autocorrelation characteristics and cross-correlation characteristics along the time domain dimension.

[0097] In some embodiments, the first device generates a signal based on the first sequence and the second sequence, including:

[0098] The first sequence is repeatedly transmitted in the time domain, and an overall phase rotation is performed on the first sequence based on the second sequence during each repeated transmission, wherein the period of repeated transmission corresponds to the time domain resource interval or the time domain density, and the number of repeated transmissions corresponds to the second sequence length.

[0099] In some implementations, performing M phase rotations on the first sequence based on the M elements in the second sequence includes:

[0100] Based on the M elements in the second sequence and the first phase value, the first sequence is phase rotated M times.

[0101] The first phase value is agreed upon by the protocol or configured on the network side, and is represented by e jθ , the first phase value represents a fixed phase rotation, where θ = 0 (equivalent to no additional phase rotation) or

[0102] For example: The first sequence is represented by x0 = [x0(0), x0(1), ..., x0(N-1)] T , the second sequence is expressed as y = [y(0), y(1), ..., y(M-1)], so that the same first sequence is phase-rotated according to any element in the second sequence to obtain a two-dimensional sequence, that is, the sequence corresponding to different time domain resource units (for example, symbols): z(n, m) = x0(n) · y(m) · e jθ , where 0≤n≤N-1, 0≤m≤M-1.

[0103] In this implementation, additional phase rotation can be implemented through the first phase value, so that the signal can meet different scenarios or business requirements to improve the compatibility of the signal.

[0104] As an optional implementation manner, the first device generating a signal based on the first sequence and the second sequence includes:

[0105] Multiplying the vector of the first sequence and the vector of the second sequence to obtain the signal, wherein the signal is a two-dimensional signal;

[0106] Performing a Kronecker product operation on the vectors of the second sequence and the vectors of the first sequence to obtain the signal;

[0107] The first sequence is scrambled in the time domain dimension based on the second sequence to obtain the signal.

[0108] In some implementations, the first sequence of vectors may include: [x(0), x(1), ..., x(N-1)] T , x(0), x(1), ..., x(N-1) represent N elements of the first sequence respectively, where N is an integer greater than 1; or,

[0109] The vector of the second sequence may include: [y(0), y(1), ..., y(M-1)], where y(0), y(1), ..., y(M-1) respectively represent the M elements of the second sequence, and N is an integer greater than M.

[0110] The above multiplication of the vector of the first sequence and the vector of the second sequence can be expressed as follows:

[0111]

[0112] Wherein, z represents the above signal, x and y represent the vector of the first sequence and the vector of the second sequence respectively, that is, [x(0), x(1), ..., x(N-1)] T and [y(0), y(1),…,y(M-1)].

[0113] In this implementation, it is possible to generate a two-dimensional signal based on the first sequence and the second sequence, so that the signal has good correlation characteristics along both the time domain dimension and the frequency domain dimension.

[0114] In some implementations, multiplying the vector of the first sequence by the vector of the second sequence to obtain the signal includes:

[0115] Multiplying the vector of the first sequence and the vector of the second sequence, and then multiplying the operation result obtained by the multiplication with the second phase value to obtain the signal; or,

[0116] The second phase value is agreed upon by the protocol or configured on the network side, and is represented by e jθ , the second phase value represents a fixed phase rotation, where θ = 0 (equivalent to no additional phase rotation) or

[0117] For example: the above signal is expressed as: z = x·y·e jθ .

[0118] In this implementation, since the second phase value is additionally multiplied, additional phase rotation can be implemented, so that the signal can meet different scenarios or business requirements to improve the compatibility of the signal.

[0119] [x0(0),x0(1),…,x0(N-1)] T , the second sequence is represented by y = [y(0), y(1), ..., y(M-1)]

[0120] The Kronecker product operation of the vectors of the second sequence and the vectors of the first sequence can be expressed as follows:

[0121]

[0122]

[0123] in, represents the Kronecker Product.

[0124] In this implementation, it is possible to generate a two-dimensional signal through a Kronecker product operation based on the first sequence and the second sequence, so that the signal has good correlation characteristics along both the time domain dimension and the frequency domain dimension.

[0125] In some implementations, performing a Kronecker product operation on the vectors of the second sequence and the vectors of the first sequence to obtain the signal includes:

[0126] A Kronecker product operation is performed on the vectors of the second sequence and the vectors of the first sequence, and a result of the Kronecker product operation is multiplied by a third phase value to obtain the signal.

[0127] The third phase value is agreed upon by the protocol or configured on the network side, and is represented by e jθ, the third phase value represents a fixed phase rotation, where θ = 0 (equivalent to no additional phase rotation) or

[0128] For example: The above signal is expressed as

[0129] In this implementation, since the third phase value is additionally multiplied, additional phase rotation can be achieved, so that the signal can meet different scenarios or business requirements to improve the compatibility of the signal.

[0130] The above-mentioned signal obtained by scrambling the first sequence in the time domain dimension based on the second sequence can be that, for each time domain resource unit, the first sequence is scrambled by using the element in the second sequence corresponding to the time domain resource unit. For example, the sequences corresponding to different symbols in each coherent processing time window all use the first sequence, and then, for each symbol, the time domain dimension is scrambled according to the element corresponding to the symbol in the second sequence.

[0131] In the above implementation, since the first sequence is scrambled in the time domain dimension based on the second sequence, the correlation characteristics of the above signal in the time domain dimension can be increased.

[0132] As an optional implementation manner, the signal is used for at least one of the following:

[0133] Perception-related measurements, communication-related measurements.

[0134] In this implementation, since the signal is used for perception-related measurements, the perception performance of the communication device can be improved, and since the signal is used for communication-related measurements, the communication measurement performance of the communication device can be improved.

[0135] As an optional implementation, the transmission resource of the signal meets the perception performance requirement.

[0136] Among them, the above-mentioned perception performance requirements can be defined by the protocol or configured on the network side.

[0137] The transmission resources of the above signals that meet the perception performance requirements may include:

[0138] The resource length or resource interval of the transmission resource of the above-mentioned signal meets the perception performance requirements, wherein the resource interval can also be called resource density.

[0139] In this implementation, when the above-mentioned signal is used for perception-related measurements, the transmission resource of the above-mentioned signal meets the perception performance requirement to improve the perception performance of the communication device.

[0140] In some implementations, after the signal, it is mapped onto the transmission resource. In addition, the mapping onto the transmission resource may be continuous mapping or discontinuous mapping.

[0141] In some implementations, the resource length of the transmission resource of the signal meets the perceptual resolution requirement; or,

[0142] The resource interval of the transmission resource of the signal meets the perception measurement range requirement.

[0143] The resource length of the transmission resource of the above signal that meets the perception resolution requirement may include:

[0144] The time domain resource length of the transmission resource of the signal meets the Doppler resolution requirement, or the time domain resource length of the transmission resource of the signal meets the velocity resolution requirement; or,

[0145] The frequency domain resource length of the signal transmission resource meets the delay resolution requirement, or the frequency domain resource length of the signal transmission resource meets the distance resolution requirement.

[0146] The resource interval of the transmission resource of the above signal that meets the perception measurement range requirement may include:

[0147] The time domain resource interval of the transmission resource of the signal meets the Doppler unambiguous measurement requirement, or, the time domain resource interval of the transmission resource of the signal meets the Doppler unambiguous measurement requirement; or,

[0148] The frequency domain resource interval of the transmission resources of the signal meets the requirement of unambiguous measurement of delay, or the frequency domain resource interval of the transmission resources of the signal meets the requirement of unambiguous measurement of distance resolution.

[0149] Take single-base radar perception as an example:

[0150] The time domain resource length satisfies T≥1 / Δf d Or T ≥ c / (2f c Δv), where Δf d is the Doppler resolution, Δv is the velocity resolution, and c is the speed of light;

[0151] The frequency domain resource length satisfies B≥1 / Δτ or B≥c / (2ΔR), where Δτ is the delay resolution and ΔR is the distance resolution;

[0152] If the speed direction is considered, the time domain resource interval satisfies ΔT≤1 / (2|f dmax |) or ΔT≤c / (4f c |v max |);

[0153] If the speed direction is not considered, the time domain resource interval satisfies ΔT≤1 / fdmax Or ΔT≤c / (2f c v max ), where f dmax is the maximum unambiguous Doppler, v max is the maximum unambiguous velocity, f c is the carrier frequency and c is the speed of light.

[0154] The frequency domain resource interval satisfies Δf1≤1 / τ max Or Δf1≤c / (2R max ), where τ max is the maximum unambiguous delay, v max is the maximum unambiguous speed.

[0155] In this implementation, since the resource length of the signal transmission resource meets the perception resolution requirement, or the resource interval of the signal transmission resource meets the perception measurement range requirement, this can improve the perception performance of the communication device. Since the signal is used for communication-related measurements, this can improve the communication measurement performance of the communication device.

[0156] As an optional implementation manner, the first sequence includes a sequence generated based on first information, and the first information includes at least one of the following:

[0157] Pseudo Random (PN) sequence, ZC sequence, chirp signal, frequency modulated continuous wave (FMCW) signal, Golay sequence, complementary Golay sequence, complementary code, Frank code, P code, Barker code, constant envelope zero autocorrelation (Const Amplitude Zero Auto-Corelation, CAZAC) sequence, low ambiguity zone (Low Ambiguity Zone, LAZ) code, zero ambiguity zone (Zero Ambiguity Zone, ZAZ) code, JPL sequence, Walsh-Hadamard code; or,

[0158] The second sequence includes a sequence generated based on second information, and the second information includes at least one of the following:

[0159] Pseudo-random sequence, ZC sequence, Chirp signal, FMCW signal, Gray sequence, complementary Gray sequence, complementary code, Frank code, P code, Barker code, CAZAC sequence, LAZ code, ZAZ code, JPL sequence, Walsh-Hadamard code.

[0160] The pseudo-random sequence includes but is not limited to:

[0161] Gold sequence, phase control (PC) sequence, shift register sequence (m and M sequence), GMW sequence, cascaded GMW sequence, Kasami sequence, Bent sequence, No sequence.

[0162] For example, the first sequence or the second sequence is a sequence obtained by modulating a PN sequence using Quadrature Phase Shift Keying (QPSK).

[0163] The above P code is a P code defined in the protocol, for example: P1 code, P2 code, P3 code or P4 code.

[0164] It should be noted that the generation method of the first sequence and the second sequence is not limited in the embodiments of the present application. The generation method of the first sequence and the second sequence may be a generation method defined in the protocol, or a generation method newly defined in a subsequent protocol version.

[0165] Optionally, at least one of an initial value, a primitive polynomial, a cyclic shift value, a truncation position, a root sequence number, a frequency modulation slope, and a starting frequency of the first information is associated with the third information, or at least one of an initial value, a primitive polynomial, a cyclic shift value, a truncation position, a root sequence number, a frequency modulation slope, and a starting frequency of the second information is associated with the third information;

[0166] The third information includes at least one of the following:

[0167] Perception area identifier, identifier for whether it is used for perception, perception service identifier, perception service type identifier, perception target identifier, number of perception targets, perception measurement quantity identifier, device identifier involved in perception measurement, time domain resource information, frequency domain resource information, port index or antenna index, maximum number of ports, beam identifier, transmitting antenna panel index, codeword index, perception resource block index.

[0168] Among them, different beams can be associated with different sensing targets, and different panels can be associated with different beams.

[0169] At least one of the initial value, primitive polynomial, cyclic shift value, truncation position, root sequence number, frequency modulation slope, and starting frequency of the above-mentioned first information may be associated with the third information, and at least one of the initial value, primitive polynomial, cyclic shift value, truncation position, root sequence number, frequency modulation slope, and starting frequency of the first information may be determined based on the third information.

[0170] At least one of the initial value, primitive polynomial, cyclic shift value, truncation position, root sequence number, frequency modulation slope, and starting frequency of the above-mentioned second information may be associated with the third information, and at least one of the initial value, primitive polynomial, cyclic shift value, truncation position, root sequence number, frequency modulation slope, and starting frequency of the second information may be determined based on the third information.

[0171] In this implementation, since at least one of the initial value, primitive polynomial, cyclic shift value, truncation position, root sequence number, frequency modulation slope, and starting frequency of the first information is associated with the above-mentioned third information, the generated first sequence can be associated with the above-mentioned third information, thereby realizing the characteristic of associating the above-mentioned third information in the above-mentioned signal, so as to enhance the correlation characteristics of the above-mentioned signal in the time domain and frequency domain dimensions.

[0172] Optionally, the time domain resource information includes at least one of the following:

[0173] Information on a radio frame index, a subframe index, a time slot index, a symbol index, a duration, a time domain density, a CP type, a CP length, and a time window, where the time window is a time window for calculating a measurement result; or,

[0174] The frequency domain resource information includes at least one of the following:

[0175] Resource element (RE) index, RB index, frequency information, frequency band information, bandwidth, frequency domain density, and subcarrier spacing.

[0176] Among them, the above-mentioned wireless frame index and subframe index can be the wireless frame index and subframe index defined by the communication system, or the relative wireless frame index and subframe index within the perceptual coherent processing time window / perceptual resource block; the above-mentioned time slot index can be the time slot index within the wireless frame, or the time slot index within the coherent processing time window / perceptual resource block; the above-mentioned symbol index can be the symbol index within the time slot, or the symbol index within the coherent processing time window / perceptual resource block.

[0177] In some embodiments, the time window information includes at least one of the following:

[0178] The index of the time window, the number of the time windows, and the index of the time domain resource occupied by the signal in the time window;

[0179] wherein at least one of the initial value, primitive polynomial, cyclic shift value, truncation position, root sequence number, frequency modulation slope, and starting frequency of the first information is associated with an index of a time domain resource occupied by the signal within the time window;

[0180] At least one of the initial value, primitive polynomial, cyclic shift value, truncation position, root sequence number, frequency modulation slope, and starting frequency of the second information is associated with the index of the time window or the number of the time windows.

[0181] In some embodiments, when the first information or the second information includes a PN sequence, an initial value, a primitive polynomial, a cyclic shift value, a truncation position of the PN sequence are associated with an index of a time domain resource occupied by the signal within the time window.

[0182] In some implementations, when the first information or the second information includes a ZC sequence, an association between a root sequence number or a cyclic shift value of the ZC sequence and an index of a time domain resource occupied by the signal within the time window.

[0183] In some embodiments, when the first information or the second information includes a Chirp signal, the frequency modulation slope or the starting frequency of the Chirp signal is associated with the index of the time domain resource occupied by the signal within the time window.

[0184] The association between at least one of the initial value, primitive polynomial, cyclic shift value, truncation position, root sequence number, frequency modulation slope, and starting frequency of the above-mentioned first information and the index of the time domain resource occupied by the signal in the time window can be that at least one of the initial value, primitive polynomial, cyclic shift value, truncation position, root sequence number, frequency modulation slope, and starting frequency of the first information is determined according to the index of the time domain resource occupied by the signal in the time window. For example: for the above-mentioned first sequence, the time domain resource information can be the index corresponding to a specific time slot or a specific symbol (such as the first time slot, the first symbol) occupied by the above-mentioned signal in the current time window, so as to achieve the same first sequence corresponding to different symbols in each coherent processing cycle, and the first sequence does not change with the time slot or symbol, so that there is no need to generate multiple first sequences to save computing overhead.

[0185] At least one of the initial value, primitive polynomial, cyclic shift value, truncation position, root sequence number, frequency modulation slope, and starting frequency of the second information may be associated with the index of the time window or the number of the time windows, and at least one of the initial value, primitive polynomial, cyclic shift value, truncation position, root sequence number, frequency modulation slope, and starting frequency of the second information may be determined according to the index of the time window or the number of the time windows. For example, for the second sequence, the time domain resource information may be the coherent processing time window index or the number of coherent processing time windows.

[0186] Optionally, the time window is associated with at least one of the following:

[0187] The length, time domain starting position, and time domain resource length of the second sequence.

[0188] The above time window may be a coherent processing time window, which may be a period for calculating the perception measurement result each time, for example, performing a two-dimensional Fast Fourier Transformation (FFT) operation to obtain a time domain resource length corresponding to a range-Doppler map. The time window may include multiple time slots or symbols.

[0189] In this implementation, since the time window is associated with at least one of the length of the second sequence, the time domain starting position, and the time domain resource length, the second device or the first device can improve the perception performance of the communication device by completing the perception measurement result in the time window.

[0190] As an optional implementation manner, before the first device sends the signal, the method further includes at least one of the following:

[0191] Configuration information for sending the signal by the first device;

[0192] The first device receives configuration information of the signal;

[0193] The configuration information includes at least one of the following:

[0194] Signal resource identification, waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction, Quasi Co-Location (QCL) relationship, antenna port information.

[0195] In this implementation, it can be applied to device A sending and device B receiving perception. Before device A sends the perception signal, it obtains the configuration information of the above signal, or notifies device B of the configuration information of the above signal.

[0196] In this implementation, it can also be applied to device A sending and device A receiving perception. Before device A sends the perception signal, it obtains the configuration information of the above signal and determines the signal configuration that needs to be sent.

[0197] The above signal resource identifier is used to distinguish different signal resource configurations;

[0198] The above may be OFDM, Single-carrier Frequency-Division Multiple Access (SC-FDMA), Orthogonal Time Frequency Space (OTFS), Frequency Modulated Continuous Wave (FMCW) or pulse signal, etc.;

[0199] The above subcarrier spacing may be the subcarrier spacing of an OFDM system, for example, 30 KHz.

[0200] The guard interval can be the time interval from the moment when the signal ends to the moment when the latest echo signal of the signal is received. This parameter is proportional to the maximum sensing distance. For example, it can be calculated by c / (2R max ) is calculated, R max is the maximum sensing distance (belonging to the sensing demand information), such as for the self-transmitted and self-received sensing signal, R max Represents the maximum distance from the perceived signal transmission and reception point to the signal reflection point; in some cases, the OFDM signal cyclic prefix (CP) can play the role of the minimum protection interval, and c is the speed of light.

[0201] The above frequency domain starting position may be a starting frequency point or a starting RE or RB index.

[0202] The frequency domain resource length may be a frequency domain bandwidth, which is inversely proportional to the distance resolution. The frequency domain bandwidth of each signal is B≥c / (2ΔR), where c is the speed of light and ΔR is the distance resolution.

[0203] The frequency domain resource spacing is inversely proportional to the maximum unambiguous distance or the maximum unambiguous delay, wherein, for an OFDM system, when subcarriers are continuously mapped, the frequency domain spacing is equal to the subcarrier spacing.

[0204] The above-mentioned time domain starting position may be a starting time point, or a starting symbol, a time slot, or a frame index.

[0205] The time domain resource length may be a burst duration, and the time domain resource length is inversely proportional to the Doppler resolution (which belongs to the perception requirement information).

[0206] The time domain resource interval may be a time interval between two adjacent signals, and the time domain resource interval is associated with a maximum unambiguous Doppler frequency shift or a maximum unambiguous speed.

[0207] The signal power may be an interval power value, for example, a value is taken every 2dBm from -20dBm to 23dBm.

[0208] The above-mentioned signal direction may be angle information or beam information of signal transmission.

[0209] The above QCL relationship may indicate that the above signal includes multiple resources, each resource is associated with an SSB QCL, and the QCL includes type A, type B, type C or type D.

[0210] The antenna port information may be a maximum number of antenna ports or an antenna port index, wherein different antenna ports may be associated with a first sequence or a second sequence generation method.

[0211] Optionally, the sequence information includes at least one of the following:

[0212] The sequence type information of the first sequence, the sequence generation method of the first sequence, the sequence length of the first sequence, the sequence type information of the second sequence, the sequence generation method of the second sequence, and the sequence length of the second sequence.

[0213] The above sequence type information may be the sequence type described in the previous implementation manner, for example: ZC sequence, PN sequence, etc.

[0214] The above-mentioned sequence generation method can be to generate a first sequence based on the above-mentioned first information, or to generate a second sequence based on the above-mentioned second information, and can also represent third information associated with the above-mentioned first information or second information, for example: the sequence initial value, cyclic shift value, original polynomial, truncation position of PN, the root sequence number, cyclic shift value of the ZC sequence, the frequency modulation slope of the Chirp signal, the starting frequency of the Chirp signal and other associated third information.

[0215] In this implementation, since the sequence information is included, the first device can directly generate the first sequence or the second sequence based on the sequence information, and the second device can receive and process the signal based on the sequence information.

[0216] As an optional implementation manner, before the first device sends the signal, the method further includes:

[0217] The first device obtains capability information of the second device, where the capability information includes at least one of the following:

[0218] Supported sequence types, supported bandwidth, supported maximum detection time, supported maximum number of ports, and perception-related capabilities.

[0219] Through the above sequence type, the first device determines the sequence type adopted by the first sequence / or the second sequence, so that the generated signal is a signal corresponding to the sequence supported by the second device, thereby improving the communication performance between the first device and the second device.

[0220] The above-mentioned perception-related capabilities may be a perception service or a perception service type supported by the second device, a perception measurement quantity, a maximum number of detectable targets, etc.

[0221] As an optional implementation manner, the first device sending the signal includes:

[0222] The first device sends a plurality of the signals through multiple ports; or

[0223] The first device sends a plurality of the signals to a plurality of devices;

[0224] The multiplexing method of the plurality of signals includes at least one of the following:

[0225] Time division multiplexing, frequency division multiplexing, and code division multiplexing.

[0226] The sending of the plurality of signals through multiple ports may be sending the plurality of signals to the same device or multiple devices through multiple ports.

[0227] In this implementation, since the above-mentioned multiple signals can be sent using time division multiplexing, frequency division multiplexing, and code division multiplexing, this can improve the communication performance of the first device.

[0228] Optionally, when the multiplexing mode includes code division multiplexing, the time-frequency domain resources occupied by the multiple signals are the same, wherein:

[0229] The first sequences corresponding to the multiple signals are different, or the second sequences corresponding to the multiple signals are different; or,

[0230] The first sequence and the second sequence corresponding to the multiple signals are the same, and the orthogonal cover codes (Orthogonal Complementary Code, OCC) corresponding to the multiple signals are different; or,

[0231] The first sequences corresponding to the multiple signals are different or the second sequences corresponding to the multiple signals are different, and the OCCs corresponding to the multiple signals are different.

[0232] The difference in the first sequence may be distinguished by the first information described in the above implementation manner, and the difference in the second sequence may be distinguished by the second information described in the above implementation manner.

[0233] For example, if the first sequence or the second sequence is generated based on the PN sequence, different scrambling code initial values ​​(c init ); if the first sequence or the second sequence is generated based on the ZC sequence, they are distinguished by different cyclic shift values ​​or root sequence numbers; if the first sequence or the second sequence is generated based on the Chirp signal, they are distinguished by different frequency modulation slopes or starting frequencies.

[0234] Different OCCs corresponding to multiple signals may mean that the ports corresponding to the multiple signals use different OCCs, for example: a port of one signal uses a first OCC, and a port of another signal uses another OCC. Alternatively, different OCCs corresponding to multiple signals may mean that the multiple signals are multiple signals obtained based on a first sequence and a second sequence, as well as different OCC sequences, wherein the first sequence or the second sequence of the multiple signals is the same or different. For example: a signal generated based on the first sequence and the second sequence is multiplied with different OCC sequences to obtain the final signals of different ports. For example, after the above signal is generated based on the first sequence and the second sequence, the signals of different ports are multiplied by different OCC sequences before being mapped to time-frequency domain resources to distinguish different signals.

[0235] In this implementation, the above-mentioned multiple signals can be distinguished in multiple ways to meet different scenarios or business requirements.

[0236] Optionally, when the first sequences corresponding to the plurality of signals are different, or the second sequences corresponding to the plurality of signals are different: the third information corresponding to each of the signals includes a port index of a corresponding port, wherein

[0237] At least one of an initial value, a primitive polynomial, a cyclic shift value, a truncation position, a root sequence number, a frequency modulation slope, and a starting frequency of the first information is associated with the third information, or at least one of an initial value, a primitive polynomial, a cyclic shift value, a truncation position, a root sequence number, a frequency modulation slope, and a starting frequency of the second information is associated with the third information;

[0238] The first sequence includes a sequence generated based on the first information, and the second sequence includes a sequence generated based on the second information.

[0239] In this implementation, the first sequence or the second sequence corresponding to each signal can be determined based on the corresponding port index, so that the first sequence or the second sequence can be generated by the corresponding port index, so that the generated signal is more matched with the corresponding port, thereby improving the transmission reliability of the signal.

[0240] As an optional implementation, the first sequence is a sequence obtained by truncating or sampling a third sequence, and the third sequence is a sequence associated with frequency domain resources; or, the second sequence is a sequence obtained by truncating or sampling a fourth sequence, and the fourth sequence is a sequence associated with time domain resources.

[0241] The generation of the third sequence or the fourth sequence may refer to the related description of the generation of the first sequence or the second sequence, which will not be elaborated here.

[0242] In some implementations, the third sequence may be a third sequence with a length of N0 generated according to the system bandwidth. The fourth sequence may be a fourth sequence with a length of M0 generated according to the total duration of the perception measurement, or a fourth sequence generated according to other rules, such as generating the fourth sequence according to the duration corresponding to every X radio frames.

[0243] In addition, the third sequence and the fourth sequence can be generated based on different or the same type of sequences, for example, the third sequence is generated based on a PN sequence, and the fourth sequence is generated based on a ZC sequence. Similarly, the first sequence and the second sequence can also be generated based on different or the same type of sequences.

[0244] The above-mentioned interception or sampling of the third sequence may be to intercept or sample the third sequence according to the frequency domain resource information (for example, bandwidth, number of frequency domain resources, frequency domain density) of the above-mentioned signal to obtain the first sequence.

[0245] The above-mentioned interception or sampling of the fourth sequence may be to intercept or sample the fourth sequence according to the time domain resource information of the above-mentioned signal (for example: coherent processing time window length, time domain density, period, time domain resource length) to obtain the second sequence.

[0246] In addition, the above sampling can be down sampling.

[0247] In some embodiments, Figure 4 As shown, multiple second sequences can be obtained based on the fourth sequence, and these multiple second sequences can be completely different sequences or sequences including some identical elements.

[0248] Since the first sequence is a sequence obtained by truncating or sampling the third sequence or the second sequence is a sequence obtained by truncating or sampling the fourth sequence, multiple sequences can be generated based on the third sequence and the fourth sequence, thereby reducing the power consumption of the first device.

[0249] As an optional implementation manner, the first device generates a signal based on the first sequence and the second sequence, including:

[0250] The first device generates a candidate signal based on a first sequence and a second sequence, where the first sequence is a sequence associated with a first frequency domain resource, and the second sequence is a sequence associated with a first time domain resource;

[0251] Intercepting or sampling the candidate signal based on the second frequency domain resource and the second time domain resource to obtain the signal;

[0252] The transmission resources of the signal include the second frequency domain resources and the second time domain resources.

[0253] Among them, the above-mentioned candidate signals can be understood as an overall two-dimensional signal, which can be associated with the entire system bandwidth, such as the above-mentioned first sequence is a sequence with a length of N0 generated according to the system bandwidth, and the overall two-dimensional signal can be associated with the total duration of the perception measurement, such as the above-mentioned second sequence is a sequence with a length of M0 generated according to the total duration of the perception measurement.

[0254] The intercepting or sampling of the candidate signal based on the second frequency domain resource and the second time domain resource may be selecting a sequence mapped to the second frequency domain resource and the second time domain resource from the candidate signal to obtain the signal.

[0255] In this implementation, since the candidate signal is intercepted or sampled based on the second frequency domain resource and the second time domain resource to obtain the above signal, the first device can obtain multiple signals based on the candidate signal, thereby reducing the power consumption of the first device.

[0256] In an embodiment of the present application, a first device generates a signal based on a first sequence and a second sequence, wherein the first sequence is a sequence associated with frequency domain resources, and the second sequence is a sequence associated with time domain resources; and the first device sends the signal. In this way, since the signal is generated based on the first sequence and the second sequence, and the first sequence is a sequence associated with frequency domain resources, and the second sequence is a sequence associated with time domain resources, the signal has relevant characteristics in both the frequency domain dimension and the time domain dimension, thereby improving the characteristics of the signal, and further improving the communication performance of the communication device.

[0257] See also Figure 5 , Figure 5 is a flow chart of a signal receiving method provided in an embodiment of the present application, such as Figure 5 As shown, the following steps are included:

[0258] Step 501: A second device receives a signal, where the signal is a signal generated based on a first sequence and a second sequence, where the first sequence is a sequence associated with frequency domain resources, and the second sequence is a sequence associated with time domain resources.

[0259] Optionally, the N sequence elements in the sequence associated with the frequency domain resources are respectively associated with N frequency domain resources, where N is an integer greater than 1; or,

[0260] The M sequence elements in the sequence associated with the time domain resources are respectively associated with M time domain resources, where M is an integer greater than 1.

[0261] Optionally, the length of the first sequence is associated with at least one of the following:

[0262] The frequency domain resource length of the transmission resource, the frequency domain resource interval of the transmission resource; or,

[0263] The length of the second sequence is associated with at least one of the following:

[0264] The time domain resource length of the transmission resource and the time domain resource interval of the transmission resource;

[0265] The transmission resource is a transmission resource of the signal.

[0266] Optionally, the transmission resources of the signal meet the perceived performance requirements.

[0267] Optionally, the resource length of the transmission resource of the signal meets the perception resolution requirement; or,

[0268] The resource interval of the transmission resource of the signal meets the perception measurement range requirement.

[0269] Optionally, the time domain resource length of the signal transmission resource meets the Doppler resolution requirement, or the time domain resource length of the signal transmission resource meets the velocity resolution requirement; or,

[0270] The frequency domain resource length of the signal transmission resource meets the delay resolution requirement, or the frequency domain resource length of the signal transmission resource meets the distance resolution requirement; or,

[0271] The time domain resource interval of the transmission resource of the signal meets the Doppler unambiguous measurement requirement, or, the time domain resource interval of the transmission resource of the signal meets the Doppler unambiguous measurement requirement; or,

[0272] The frequency domain resource interval of the transmission resources of the signal meets the requirement of unambiguous measurement of delay, or the frequency domain resource interval of the transmission resources of the signal meets the requirement of unambiguous measurement of distance resolution.

[0273] Optionally, the first sequence includes a sequence generated based on first information, and the first information includes at least one of the following:

[0274] Pseudo-random sequence, ZC sequence, chirp signal, FMCW signal, Gray sequence, complementary Gray sequence, complementary code, Frank code, P code, Barker code, constant envelope zero autocorrelation CAZAC sequence, low ambiguity zone LAZ code, zero ambiguity zone ZAZ code, JPL sequence, Walsh-Hadamard code; or,

[0275] The second sequence includes a sequence generated based on second information, and the second information includes at least one of the following:

[0276] Pseudo-random sequence, ZC sequence, Chirp signal, FMCW signal, Gray sequence, complementary Gray sequence, complementary code, Frank code, P code, Barker code, CAZAC sequence, LAZ code, ZAZ code, JPL sequence, Walsh-Hadamard code.

[0277] Optionally, at least one of an initial value, a primitive polynomial, a cyclic shift value, a truncation position, a root sequence number, a frequency modulation slope, and a starting frequency of the first information is associated with the third information, or at least one of an initial value, a primitive polynomial, a cyclic shift value, a truncation position, a root sequence number, a frequency modulation slope, and a starting frequency of the second information is associated with the third information;

[0278] The third information includes at least one of the following:

[0279] Perception area identifier, identifier for whether it is used for perception, perception service identifier, perception service type identifier, perception target identifier, number of perception targets, perception measurement quantity identifier, device identifier involved in perception measurement, time domain resource information, frequency domain resource information, port index or antenna index, maximum number of ports, beam identifier, transmitting antenna panel index, codeword index, perception resource block index.

[0280] Optionally, the time domain resource information includes at least one of the following:

[0281] Information on a radio frame index, a subframe index, a time slot index, a symbol index, a duration, a time domain density, a cyclic prefix CP type, a CP length, and a time window, where the time window is a time window for calculating a measurement result; or,

[0282] The frequency domain resource information includes at least one of the following:

[0283] Resource element RE index, resource block RB index, frequency point information, frequency band information, bandwidth, frequency domain density, subcarrier spacing.

[0284] Optionally, the information of the time window includes at least one of the following:

[0285] The index of the time window, the number of the time windows, and the index of the time domain resource occupied by the signal in the time window;

[0286] wherein at least one of the initial value, primitive polynomial, cyclic shift value, truncation position, root sequence number, frequency modulation slope, and starting frequency of the first information is associated with an index of a time domain resource occupied by the signal within the time window;

[0287] At least one of the initial value, primitive polynomial, cyclic shift value, truncation position, root sequence number, frequency modulation slope, and starting frequency of the second information is associated with the index of the time window or the number of the time windows.

[0288] Optionally, the time window is associated with at least one of the following:

[0289] The length, time domain starting position, and time domain resource length of the second sequence.

[0290] Optionally, before the second device receives the signal, the method further includes at least one of the following:

[0291] The second device receives configuration information of the signal;

[0292] The configuration information includes at least one of the following:

[0293] Signal resource identification, waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction, quasi-co-site QCL relationship, antenna port information.

[0294] Optionally, the sequence information includes at least one of the following:

[0295] The sequence type information of the first sequence, the sequence generation method of the first sequence, the sequence length of the first sequence, the sequence type information of the second sequence, the sequence generation method of the second sequence, and the sequence length of the second sequence.

[0296] Optionally, the signal is used for at least one of the following:

[0297] Perception-related measurements, communication-related measurements.

[0298] Optionally, the first sequence is a sequence obtained by truncating or sampling a third sequence, and the third sequence is a sequence associated with frequency domain resources; or, the second sequence is a sequence obtained by truncating or sampling a fourth sequence, and the fourth sequence is a sequence associated with time domain resources; or,

[0299] The first device generates a signal based on the first sequence and the second sequence, comprising:

[0300] The first device generates a candidate signal based on a first sequence and a second sequence, where the first sequence is a sequence associated with a first frequency domain resource, and the second sequence is a sequence associated with a first time domain resource;

[0301] Intercepting or sampling the candidate signal based on the second frequency domain resource and the second time domain resource to obtain the signal;

[0302] The transmission resources of the signal include the second frequency domain resources and the second time domain resources.

[0303] It should be noted that this embodiment is Figure 3 The implementation of the second device corresponding to the embodiment shown in the figure can be found in the specific implementation of the second device. Figure 3 To avoid repeated description, the related description of the embodiment shown in the present invention will not be repeated in detail.

[0304] The following uses the signal for related measurement of perception (that is, the above signal is a two-dimensional perception signal) to illustrate the method provided in the embodiment of the present application through multiple embodiments:

[0305] Embodiment 1:

[0306] In this embodiment, a two-dimensional sensing signal is generated based on a PN sequence.

[0307] In this embodiment, a first sequence and a second sequence are generated based on a PN sequence, and a two-dimensional perception signal is further obtained (as described in the inventive solution), wherein an initial value of the PN sequence is associated with third information, and the third information includes at least one of the following:

[0308] Perception area identification;

[0309] Whether it is used for the identification of perception, or the identification of the perception service, or the identification of the type of perception service;

[0310] Perception target identification, perception target associated tag identification;

[0311] The number of perceived targets;

[0312] Perceptual measurement quantity identification;

[0313] The device identifier involved in the sensing measurement may be, for example, a cell identifier or a terminal identifier (eg, a Radio Network Temporary Identifier (RNTI));

[0314] Time domain resource information or frequency domain resource information, wherein the time domain resource information includes at least one of the following:

[0315] Information related to time domain resources (radio frame index, subframe index, slot index, symbol index, duration, time domain density, CP type, CP length, and also coherent processing time window index or number of coherent processing time windows).

[0316] Among them, the above-mentioned wireless frame index and subframe index can be the wireless frame index and subframe index defined by the communication system, or the relative wireless frame index and subframe index within the perceptual coherent processing time window / perceptual resource block; the above-mentioned time slot index can be the time slot index within the wireless frame, or the time slot index within the coherent processing time window / perceptual resource block; the above-mentioned symbol index can be the symbol index within the time slot, or the symbol index within the coherent processing time window / perceptual resource block.

[0317] For the first sequence, the time domain resource information may be an index corresponding to a specific time slot occupied by the perceived signal in the current coherent processing time window, a specific symbol (e.g., the first time slot, the first symbol), that is, the first sequence corresponding to different symbols in each coherent processing cycle is the same, and the first sequence does not change with the time slot or symbol.

[0318] For the second sequence, the time domain resource information may be a coherent processing time window index or the number of coherent processing time windows;

[0319] The above-mentioned coherent processing time window, i.e., the period of calculating the perception measurement result each time (for example, performing a two-dimensional FFT operation to obtain the time domain resource length corresponding to the range-Doppler map), may include multiple time slots / symbols;

[0320] The frequency domain resource information includes information related to the frequency domain resources, for example, including at least one of the following:

[0321] RE index, RB index, frequency point information, frequency band information, bandwidth, frequency domain density, and subcarrier spacing.

[0322] A sensing resource block index, where the sensing resource block includes multiple PRBs and multiple time slots / symbols, that is, includes specific time-frequency domain resources (for example, performing a two-dimensional FFT operation to obtain a frequency domain resource length and a time domain resource length corresponding to a range-Doppler map);

[0323] Port index or antenna index;

[0324] Maximum number of ports;

[0325] Codeword index.

[0326] In addition, in addition to the initial value of the PN sequence, the primitive polynomial, cyclic shift value, and truncation position corresponding to the PN sequence (that is, the generation of the first sequence can be based on the system bandwidth to obtain the first sequence A, and then truncate it based on the actual bandwidth to obtain the first sequence B) can also be associated with the above information.

[0327] The following is a further explanation of some of the above content:

[0328] The sensing area corresponding to the sensing area identifier is the target area to be sensed, which may be divided in advance, and specifically may include the following multiple methods:

[0329] Multiple base station coverage areas (cells) form a perception area, associated with a perception area identifier n areaID ,like Figure 6 As shown, each hexagonal area represents a base station coverage area, and areas with the same number represent the same perception area. In particular, the access network notification area (RAN-based notification area, RNA) can be used as a perception area, and the RNAID can be used as the perception area identifier.

[0330] 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 denoted as n. areaID ,like Figure 7 ,The dotted line represents the base station coverage area, and each square represents the divided sensing area.

[0331] Alternatively, the area ID n may be generated by directly using a geographical area identifier such as longitude and latitude or coordinates that is not related to the base station location. areaID .

[0332] It can also be that 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 sensing area ID1, where x and y are real numbers.

[0333] When multiple devices perform joint perception of the same perception area, multiple devices use a common area ID to generate perception signals.

[0334] Optionally, the generation parameters of the perception signal are independent of the cell identifier or the terminal identifier, that is, different sending devices can use the same perception signal generation parameters, which facilitates further construction of code-division orthogonal perception signals (for example, a first perception signal is generated based on the same generation parameters, and different devices use the same first perception signal and different OCC sequences to generate mutually orthogonal second perception signals for perception measurement). The receiving device can obtain the perception signal and perform measurements based on the same perception signal generation parameters and code-division orthogonal method, thereby reducing interference between signals of different devices, reducing signaling overhead, and improving measurement efficiency.

[0335] The initial value of the PN sequence is generated based on an identifier of whether it is used for perception, or a specific perception service identifier, or a perception service type identifier, including:

[0336] Based on whether it is used for perception, when it is not used for perception, n sensingID =0; when used for perception n sensingID =1.

[0337] Based on the specific perception service identifier, for example, different perception services correspond to different perception service IDn sensingID , wherein the sensing service may be, for example, the following:

[0338] Detect whether the target exists, positioning, speed detection, distance detection, angle detection, acceleration detection, material analysis, component analysis, shape detection, category classification, Radar Cross Section (RCS) detection, polarization scattering characteristic detection, fall detection, intrusion detection, quantity statistics, indoor positioning, gesture recognition, lip reading recognition, gait recognition, expression recognition, facial recognition, breathing monitoring, heart rate monitoring, pulse monitoring, humidity / brightness / temperature / atmospheric pressure monitoring, air quality monitoring, weather condition monitoring, environmental reconstruction, topography, building / vegetation distribution detection, pedestrian or vehicle flow detection, crowd density, vehicle density detection, etc.

[0339] It can also be the identification of the perception service type. Different categories correspond to different perception service IDn sensingID , for example, the perception functions or business types are divided according to the scope scale, such as:

[0340] Category 1 (close distance / small range): material analysis, component analysis, gesture recognition, lip reading recognition, gait recognition, expression recognition, facial recognition, breathing monitoring, heart rate monitoring, pulse monitoring, etc.

[0341] The second category (medium distance / medium range): intrusion detection, population counting, indoor positioning, etc.

[0342] The third category (long distance / large range): humidity / brightness / temperature / atmospheric pressure monitoring, air quality monitoring, weather condition monitoring, environmental reconstruction, topography, building / vegetation distribution detection, pedestrian or vehicle flow detection, etc.

[0343] Other classification standards can also be used, such as classification based on function into positioning perception, imaging perception, pattern recognition perception, etc.; it can also be classified according to power consumption / energy consumption, classification according to resource occupancy, etc.

[0344] The perception signal may also be generated according to the measurement quantity identifier, that is, at least one of the perception measurement quantities is associated with a measurement quantity identifier, for example, as shown in Table 1:

[0345] Table 1:

[0346]

[0347]

[0348] The perceptual measurement includes at least one of the following:

[0349] The first-level measurement quantity (received signal / original channel information), including: received signal / channel response complex result, amplitude / phase, I-channel / Q-channel and operation results thereof (operations include addition, subtraction, multiplication and division, matrix addition, subtraction and multiplication, matrix transposition, trigonometric relationship operation, square root operation and power operation, as well as threshold detection results, maximum / minimum value extraction results, etc. of the above operation results; operations also include Fast Fourier Transform (FFT) / Inverse Fast Fourier Transform (IFFT), Discrete Fourier Transform (DFT) / Inverse Discrete Fourier Transform (IDFT), 2D-FFT, 3D-FFT, matched filtering, autocorrelation operation, wavelet transform and digital filtering, as well as threshold detection results, maximum / minimum value extraction results, etc. of the above operation results);

[0350] The second level of measurement (basic measurement) includes: delay, Doppler, angle, intensity, and their multi-dimensional combination representation;

[0351] The third level of measurement (basic attributes / states) includes: distance, speed, direction, spatial position, and acceleration;

[0352] The fourth level of measurement (advanced attributes / states) includes: target presence, trajectory, movement, expression, vital signs, quantity, imaging results, weather, air quality, shape, material, and composition.

[0353] Generated based on the perception target identifier (or the tag identifier associated with the perception target), including:

[0354] The signal sending device obtains the identification of the sensing target. Different sensing targets correspond to different sensing target IDn. targetID , wherein the determination of the perceived target may be based on a priori information obtained from existing measurement results, for example, base station A sends a perceived measurement signal through an omni-directional beam for preliminary measurement, base station A obtains a distance-Doppler map (or a distance-angle map, etc.), determines the number of targets according to the distance-Doppler map, and assigns an ID to each target; or, base station A sends a perceived measurement signal through an omni-directional beam for preliminary measurement, a receiving device (such as another base station or terminal) obtains a distance-Doppler map (or a distance-angle map, etc.), determines the number of targets according to the distance-Doppler map, assigns an ID to each target, and then notifies the sending base station of the target ID and / or target-related information.

[0355] After the signal sending device determines the ID of each target, it generates signals for sensing different targets according to different target IDs, and these sensing signals are sent using different beams, with the beam direction pointing to the sensing target associated with the target ID;

[0356] The sensing target is equipped with a tag, and different tags are associated with different tag IDs. The sending device obtains the tag ID of the corresponding target, and then obtains the signal used to sense different targets. The tag can be a device that supports backscatter communication, and its excitation source can be a device other than the tag, or the excitation source is the tag itself. It can also be a terminal, that is, a common transceiver module is installed on the sensing target, such as a communication device such as a vehicle-mounted terminal installed on a car.

[0357] It can also be the identification of the type of perceived target. Different types correspond to different perceived target IDs. For example, they are divided into stationary targets and moving targets. The latter can be further divided into high-speed targets and low-speed targets. Different types of targets correspond to different n targetID .

[0358] Specifically, the perception area is identified by n areaID For example, the initial value of the PN sequence can be:

[0359] c init =n areaID , where n areaID Identify the sensing area; or

[0360] or, or, or

[0361] in, is the number of symbols in each time slot, is the time slot index in the radio frame, l is the symbol index in the time slot, and n areaID is the perception area identifier, x is a non-negative positive integer.

[0362] Among them, the coefficient parameter of the previous item in the initialization formula can be determined according to the variable value range and the value of the coefficient parameter of the following items. For example, there are 1000 perception area IDs in total, which need to be represented by 10-bit binary numbers. Then x=10 can be set to ensure that no repeated generation sequence occurs. Among them, A is a non-negative positive integer, and A=31 can be set.

[0363] or, in is the physical cell identifier, or or, Where x and y are non-negative positive integers; or,

[0364] c init =(2 x n RNTI +n areaID )mod2 A or c init =2 x n RNTI +n areaID , where n RNTI is the terminal identifier, where

[0365] x and A are non-negative positive integers, so A=31.

[0366] or It can also be or Where x, y, and A are non-negative positive integers, and A=31.

[0367] or

[0368] Where q is the codeword index, which can also be or Where x, y, z, and A are non-negative positive integers, and A=31.

[0369] Alternatively, taking the sensing area identifier and the sensing target identifier as an example, the initial value of the PN sequence may be: or Alternatively, the perceptually coherent processing time window index n period and antenna port index n port For example, the initial value of the PN sequence can be:

[0370] c init =(2 x (n period +1)+n port )mod2 A or c init =2 x (n period +1)+n port or

[0371] It should be noted that the c corresponding to the first sequence and the second sequence init The generation method can be different.

[0372] or or or or in represents the number of time slots corresponding to each coherent processing time window, The time slot index within the coherent processing time window.

[0373] The first sequence / second sequence may be generated by generating a PN sequence according to the following formula:

[0374] c(n)=(x1(n+N C )+x2(n+N C ))mod2

[0375] x1(n+31)=(x1(n+3)+x1(n))mod2

[0376] x2(n+31)=(x2(n+3)+x2(n+2)+x2(n+1)+x2(n))mod2

[0377] Where n = 0, 1, ..., M PN -1,M PN is the sequence length. N C = 1600, the initialization method of the first m sequence x1(n) is x1(0) = 1, x1(n) = 0, n = 1, 2, ..., 30; the initialization method of the second m sequence x2(n) is Further, the PN sequence is modulated to obtain a first sequence / a second sequence, for example, QPSK modulation is performed: M is the length of the first sequence / second sequence.

[0378] Or, according to the initial value c init Generate a pseudo-random sequence, and generate a sequence according to the pseudo-random sequence c(i) through π / 2-BPSK modulation Then according to the sequence Generate a basis sequence: Then generate the first sequence / second sequence according to the base sequence: M is the length of the first sequence / second sequence. Compared with the previous method, the first sequence / second sequence generated by this method has a smaller peak to average power ratio (PAPR) and higher power amplifier efficiency, which is beneficial to improving the perceptual measurement coverage performance.

[0379] Embodiment 2:

[0380] In this embodiment, a two-dimensional perception signal is generated based on a ZC sequence.

[0381] In this embodiment, a two-dimensional perception signal is generated based on a ZC sequence. Compared with a perception signal generated based on a PN sequence, the perception signal generated in this manner has a smaller PAPR and higher power amplifier efficiency, which is beneficial to improving the perception measurement coverage performance. The root sequence number value or cyclic shift value of the ZC sequence is associated with the third information, and the specific content of the third information can refer to Embodiment 1.

[0382] The first sequence / second sequence is generated as follows:

[0383] Determined by root sequence number q Then we get the base sequence in,

[0384] N ZC is the largest prime number less than the sequence length M. In addition, the perception signal can be obtained by cyclic shift:

[0385] Among them, the sequence length M is related to the perception signal resource. For example, according to the perception signal bandwidth and the frequency domain resource interval, the number of frequency domain resource units used to transmit the perception signal, that is, the length of the first sequence, is determined; or according to the total duration of the perception signal and the time domain resource interval, the number of time domain resource units used to transmit the perception signal, that is, the length of the second sequence, is determined.

[0386] Among them, the cyclic shift value α and the root sequence number q are associated with the first information, and the association method can be, for example, the perception area identifier is an 8-bit ID, then all or part of the 8 bits can be used to calculate the root sequence number q or the cyclic shift value α of the sequence, for example, the cyclic shift value α can be determined by the first 4 bits of the ID, and the root sequence number q is determined by the last 4 bits of the ID; for another example, the cyclic shift value α is determined according to the perception service identifier, and the root sequence number q is determined according to the perception area identifier. There may be a preset mapping relationship between different perception area identifiers and the root sequence number q, as shown in Table 2 below, and the preset mapping relationship is agreed upon, or the second device obtains it through a signaling message.

[0387] Table 2:

[0388] Sensing Area ID Root serial number q ID1 X1 ID2 X2 … …

[0389] It can also be calculated according to a formula. Specifically, the root sequence number q can be calculated, for example:

[0390]

[0391]

[0392] Among them, u∈{0,1,...,29} is the group number, v is the base sequence number in the group, and taking the perception area identifier as an example, the value can be u=(n areaID )mod30,v=0.

[0393] The calculation of the cyclic shift value may be, for example: is the maximum value among the region identifiers.

[0394] Embodiment three:

[0395] In this embodiment, a two-dimensional perception signal is generated based on a Chirp or FMCW signal.

[0396] In this embodiment, the perception signal is generated based on the Chirp or FMCW signal, wherein the frequency modulation slope of the Chirp or FMCW signal is associated with the first information. For the specific content of the first information, reference may be made to Embodiment 1. FMCW sends a waveform whose frequency changes with time, usually linearly. A frequency modulation cycle of the FMCW waveform is generally also called a Chirp. Figure 8 shown.

[0397] Chirp signal can be expressed by the following formula:

[0398]

[0399] Among them, A0 is the amplitude, f cis the starting frequency, |k|=B / T is the frequency modulation slope, where B is the bandwidth, and T is the Chirp duration (ie, the frequency modulation period of FMCW). For example, if the first sequence is generated based on the Chirp signal, the Chirp duration is equal to the OFDM symbol duration.

[0400] Among them, different frequency modulation slopes are associated with the third information. For example, different perception services have different requirements on bandwidth and Chirp duration, that is, different requirements on frequency modulation slopes. There may be a preset mapping relationship between different perception service IDs and different frequency modulation slopes. For example, for two-port signal transmission, the frequency modulation slopes of the Chirp signal used by port 0 and port 1 can be k0 and -k0 respectively, that is, they are opposite to each other.

[0401] Different starting frequencies are associated with the third information, for example, there is a preset mapping relationship between different perception areas and starting frequencies.

[0402] Embodiment 4:

[0403] This embodiment mainly describes the generation of two-dimensional perception signals based on different types of sequences.

[0404] The first sequence and the second sequence can be generated based on different types of sequences. For example, the first sequence is generated based on the Gold sequence, and the specific generation method is as shown in Example 1. The second sequence is generated based on the ZC sequence, and the specific generation method is as shown in Example 2. Then, a two-dimensional perception signal is obtained based on the first sequence and the second sequence, as described in the application plan.

[0405] For another example, the first sequence is generated based on the Gold sequence, and the specific generation method is as described in Example 1. The second sequence is generated based on the Golay sequence (the second sequence may be a binary sequence that has not been QPSK modulated), and then a two-dimensional perception signal is obtained based on the first sequence and the second sequence.

[0406] Embodiment five:

[0407] This embodiment mainly describes a multi-port design.

[0408] The design for multi-port or multi-user perception may be: time division multiplexing, and / or frequency division multiplexing, and / or code division multiplexing.

[0409] For code division multiplexing, the two-dimensional sensing signals corresponding to different ports / users occupy the same time-frequency domain resources. The specific implementation method can be:

[0410] The first sequence is different, and / or the second sequence is different. If generated based on a PN sequence, the different scrambling code initial values ​​cinit are used to distinguish them; if generated based on a ZC sequence, the different cyclic shift values ​​and / or root sequence numbers are used to distinguish them; if generated based on a Chirp signal, the different frequency modulation slopes and / or starting frequencies are used to distinguish them. As described in the previous embodiment, the third information includes an antenna port index.

[0411] For example, the sensing signals corresponding to different ports use different first sequences and different second sequences, where the first sequence and the second sequence are PN sequences, and the initial value corresponding to the first sequence is:

[0412] or

[0413] or or

[0414]

[0415] It should be noted that, the time resource information in the initial value corresponding to the first sequence in the same coherent processing time window is the same, as described in the first embodiment.

[0416] The initial value corresponding to the second sequence is:

[0417] or

[0418] or

[0419] or

[0420]

[0421] For another example: the sensing signals corresponding to different ports use the same first sequence and different second sequences, where the first sequence and the second sequence are PN sequences, and the initial value corresponding to the first sequence is

[0422] or

[0423]

[0424] The initial value corresponding to the second sequence is:

[0425] or

[0426] or

[0427] or

[0428]

[0429] For another example, the sensing signals corresponding to different ports use different first sequences and the same second sequence, where the first sequence and the second sequence are PN sequences, and the initial value corresponding to the first sequence is:

[0430] or

[0431] or or

[0432]

[0433] The initial value corresponding to the second sequence is:

[0434] or

[0435]

[0436] For another example, when a ZC sequence is used, the first sequence / second sequence corresponding to different ports may use the same ZC base sequence. Then we get the base sequence The root sequence numbers q of different ports are the same. Further, the first sequence / second sequence corresponding to different ports are obtained by cyclic shift: The calculation of the cyclic shift value may be, for example: is the cyclic shift value associated with the port index.

[0437] In addition, when the ZC sequence is used, the first sequence / second sequence corresponding to different ports may use different ZC base sequences, that is, the root sequence numbers corresponding to different ports are Different, among them Associated with the port index.

[0438] In addition, when the ZC sequence is used, the first sequence / second sequence corresponding to different ports may use different ZC base sequences and different cyclic shift values, wherein the root sequence number and the cyclic shift value are associated with the port index.

[0439] The first sequence is the same as the second sequence, and the OCC code is used to distinguish multiple ports.

[0440] For example, taking 2-port frequency domain OCC as an example, after obtaining the two-dimensional perception signal z(n,m), 0≤n≤N-1,0≤m≤M-1 according to the first sequence and the second sequence, the frequency domain sequence corresponding to different symbols of port 0 is [+1+

[0441] 1,…,+1,+1] are multiplied and mapped to different subcarriers. The frequency domain sequences corresponding to different symbols of port 1 are [+1-

[0442] 1,…,+1,-1] are multiplied and mapped to different subcarriers.

[0443] Time domain OCC may also be used, or time domain OCC and frequency domain OCC may be used simultaneously. The principles are similar and will not be described in detail.

[0444] The first sequence is different, and / or the second sequence is different, and an OCC code is used to distinguish multiple ports.

[0445] Specifically, ports using the same first sequence and second sequence may correspond to the same port set, different ports in the same port set may be distinguished by OCC, and different port sets may use different first sequences and / or second sequences.

[0446] Assume that there are two targets to be sensed, and two-port signals are used for sensing. In the design of the two-dimensional sensing signal in the time-frequency domain, the first sequence and the second sequence corresponding to the two port signals are different (both use QPSK modulation PN sequence, cinit is different, or the first sequence and the second sequence corresponding to the two port signals use ZC sequence, and the root sequence number and / or cyclic shift value are different); CSI-RS uses OCC code to distinguish the two port signals. Figures 9a to 9d As shown, Figures 9a to 9d The measurement performance of the two-dimensional perception signal generated based on the PN sequence or ZC sequence is compared with the CSI-RS measurement performance of the communication system, including delay, Doppler, angle measurement root mean square error (RMSE) and positioning RMSE. It can be seen that the proposed scheme improves the perception performance compared with the original reference signal design.

[0447] Embodiment six:

[0448] In this embodiment, the first sequence and the second sequence are obtained based on sequence truncation.

[0449] The generation of the first sequence or the second sequence can also be based on truncation of a specially designed sequence with a longer length.

[0450] For example, a third sequence with a length of N0 is generated according to the system bandwidth, and then the third sequence is truncated or extracted (downsampled) according to the frequency domain resource information (bandwidth, number of frequency domain resources, frequency domain density) of the perceived signal to obtain the first sequence.

[0451] A fourth sequence with a length of M0 is generated according to the total duration of the perception measurement (or the fourth sequence is generated according to other rules, such as the duration corresponding to every X wireless frames), and then the fourth sequence is intercepted or extracted (downsampled) according to the perception signal time domain resource information (coherent processing time window length, time domain density, period, time domain resource length) to obtain the second sequence.

[0452] The generation of the third sequence and the fourth sequence may refer to Embodiments 1 to 3, that is:

[0453] If the PN sequence is generated (for example, quadrature phase shift keying (QPSK) modulation is performed), the initial value of the PN sequence and / or the primitive polynomial of the PN sequence are associated with the third information;

[0454] If generated based on a ZC sequence, the root sequence number and / or cyclic shift value of the ZC sequence is associated with the third information;

[0455] If generated based on a Chirp signal, the frequency modulation slope and / or the starting frequency of the Chirp signal are associated with the third information.

[0456] It should be noted that the third sequence and the fourth sequence may be generated based on different types of sequences. For example, the third sequence is generated based on a PN sequence, and the fourth sequence is generated based on a ZC sequence.

[0457] The third information is defined as described in the first embodiment, wherein, for the generation of the third sequence and the fourth sequence, the third information further includes at least one of the following:

[0458] The starting position in the frequency domain, such as frequency point A (PonitA);

[0459] The offset relative to the start position of the frequency domain;

[0460] A time domain starting position, for example, a starting time domain position of every K (K ≥ 1) radio frames;

[0461] The offset relative to the start of the time domain.

[0462] Optionally, for the generation of the third sequence and the fourth sequence, the third information may not include the coherent processing time window index or the perception resource block index. In this case, the third sequence and the fourth sequence may correspond to multiple coherent processing time windows or perception resource blocks. Taking the fourth sequence and the second sequence corresponding to the time domain dimension as an example, the relationship between the perception signal and the coherent processing time window is explained, such as Figure 4 As shown, different coherent processing time windows can be non-overlapping or partially overlapping in the time domain (i.e., the perception measurement results are calculated in a sliding window manner, and the sliding step size is smaller than the coherent processing time window length, which is suitable for perception services such as trajectory tracking, intrusion detection, and breathing detection).

[0463] like Figure 4 As shown, the fourth sequence length M0 corresponds to the total duration of the perception measurement, and the second sequence 0, 1, ... is obtained by intercepting the fourth sequence according to the coherent processing time window 0, 1, ...

[0464] It should be noted that the generation of the two-dimensional perception signal can also be to directly generate an overall two-dimensional signal based on the third sequence and the fourth sequence (the generation method is as described in the invention scheme, which is the same as generating the two-dimensional perception signal based on the first sequence and the second sequence), and then perform frequency domain and time domain interception on the overall two-dimensional signal according to the frequency domain resource information and time domain resource information of the perception signal to obtain the two-dimensional perception signal.

[0465] In addition, the method provided in the embodiment of the present application can be combined with various synaesthesia signal resource patterns, and can be further extended to the antenna domain. For example, on the basis of the embodiment provided in the embodiment of the present application, matrix multiplication or Kronecker product is performed based on the third sequence to make special design sequences along different antenna dimensions, such as realizing three-dimensional signals.

[0466] In the embodiment of the present application, the two sequences are calculated (for example, matrix multiplication or Kronecker product) so that the perception signal has good correlation characteristics along both the time domain dimension and the frequency domain dimension.

[0467] The embodiments of the present application can improve the perception performance. For example, the perception signal along the time domain dimension is based on a specially designed sequence (i.e., the second sequence), which can make the perception signal in the time domain dimension have good correlation characteristics, reduce the Doppler sidelobe of the perception measurement, and improve the Doppler measurement performance.

[0468] In addition, in multi-port / multi-user scenarios, code division multiplexing can be performed through the design of sequences in the time domain dimension (i.e., the second sequence), reducing signal interference between different ports or users, improving perceived performance, and further increasing the maximum number of supported ports.

[0469] The embodiments of the present application can also reduce the amount of calculation. For example, the first sequence and the second sequence are generated only once in each perception coherence processing time window, and then a two-dimensional perception signal is obtained by performing phase rotation according to the second sequence or performing matrix multiplication or Kronecker product with the second sequence. This can reduce the amount of calculation for sequence generation (no need to generate a sequence independently for each symbol).

[0470] 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.

[0471] The signal receiving method provided in the embodiment of the present application may be executed by a signal receiving device. In the embodiment of the present application, the signal receiving device executing the signal receiving method is taken as an example to illustrate the signal receiving device provided in the embodiment of the present application.

[0472] See also Fig.10 , Fig.10is a structural diagram of a signal sending device provided in an embodiment of the present application, such as Fig.10 As shown, the signal sending device 1000 includes:

[0473] A generating module 1001 is configured to generate a signal based on a first sequence and a second sequence, wherein the first sequence is a sequence associated with frequency domain resources, and the second sequence is a sequence associated with time domain resources;

[0474] The first sending module 1002 is configured to send the signal.

[0475] Optionally, the N sequence elements in the sequence associated with the frequency domain resources are respectively associated with N frequency domain resources, where N is an integer greater than 1; or,

[0476] The M sequence elements in the sequence associated with the time domain resources are respectively associated with M time domain resources, where M is an integer greater than 1.

[0477] Optionally, the length of the first sequence is associated with at least one of the following:

[0478] The frequency domain resource length of the transmission resource, the frequency domain resource interval of the transmission resource; or,

[0479] The length of the second sequence is associated with at least one of the following:

[0480] The time domain resource length of the transmission resource and the time domain resource interval of the transmission resource;

[0481] The transmission resource is a transmission resource of the signal.

[0482] Optionally, the first device generating a signal based on the first sequence and the second sequence includes the following:

[0483] Performing phase rotation on the first sequence based on the second sequence to obtain the signal;

[0484] Multiplying the vector of the first sequence and the vector of the second sequence to obtain the signal, wherein the signal is a two-dimensional signal;

[0485] Performing a Kronecker product operation on the vectors of the second sequence and the vectors of the first sequence to obtain the signal;

[0486] The first sequence is scrambled in the time domain dimension based on the second sequence to obtain the signal.

[0487] Optionally, performing phase rotation on the first sequence based on the second sequence to obtain the signal includes:

[0488] The first sequence is phase rotated M times based on the M elements in the second sequence to obtain M sequences, and the signal includes the M sequences, where M is an integer greater than 1.

[0489] Optionally, the first sequence of vectors includes: [x(0), x(1), ..., x(N-1)] T , x(0), x(1), ..., x(N-1) represent N elements of the first sequence respectively, where N is an integer greater than 1; or,

[0490] The vectors of the second sequence include: [y(0), y(1), …, y(M-1)], where y(0), y(1), …, y(M-1) respectively represent the M elements of the second sequence, and N is an integer greater than M.

[0491] Optionally, performing M phase rotations on the first sequence based on M elements in the second sequence includes:

[0492] Based on the M elements in the second sequence and the first phase value, performing M phase rotations on the first sequence; or,

[0493] The multiplying the vector of the first sequence and the vector of the second sequence to obtain the signal includes:

[0494] Multiplying the vector of the first sequence and the vector of the second sequence, and then multiplying the operation result obtained by the multiplication with the second phase value to obtain the signal; or,

[0495] The step of performing a Kronecker product operation on the vectors of the second sequence and the vectors of the first sequence to obtain the signal comprises:

[0496] A Kronecker product operation is performed on the vectors of the second sequence and the vectors of the first sequence, and a result of the Kronecker product operation is multiplied by a third phase value to obtain the signal.

[0497] Optionally, the transmission resources of the signal meet the perceived performance requirements.

[0498] Optionally, the resource length of the transmission resource of the signal meets the perception resolution requirement; or,

[0499] The resource interval of the transmission resource of the signal meets the perception measurement range requirement.

[0500] Optionally, the time domain resource length of the signal transmission resource meets the Doppler resolution requirement, or the time domain resource length of the signal transmission resource meets the velocity resolution requirement; or,

[0501] The frequency domain resource length of the signal transmission resource meets the delay resolution requirement, or the frequency domain resource length of the signal transmission resource meets the distance resolution requirement; or,

[0502] The time domain resource interval of the transmission resource of the signal meets the Doppler unambiguous measurement requirement, or, the time domain resource interval of the transmission resource of the signal meets the Doppler unambiguous measurement requirement; or,

[0503] The frequency domain resource interval of the transmission resources of the signal meets the requirement of unambiguous measurement of delay, or the frequency domain resource interval of the transmission resources of the signal meets the requirement of unambiguous measurement of distance resolution.

[0504] Optionally, the first sequence includes a sequence generated based on first information, and the first information includes at least one of the following:

[0505] Pseudo-random sequence, ZC sequence, chirp signal, frequency modulated continuous wave FMCW signal, Gray sequence, complementary Gray sequence, complementary code, Frank code, P code, Barker code, constant envelope zero autocorrelation CAZAC sequence, low ambiguity zone LAZ code, zero ambiguity zone ZAZ code, JPL sequence, Walsh-Hadamard code; or,

[0506] The second sequence includes a sequence generated based on second information, and the second information includes at least one of the following:

[0507] Pseudo-random sequence, ZC sequence, Chirp signal, FMCW signal, Gray sequence, complementary Gray sequence, complementary code, Frank code, P code, Barker code, CAZAC sequence, LAZ code, ZAZ code, JPL sequence, Walsh-Hadamard code.

[0508] Optionally, at least one of an initial value, a primitive polynomial, a cyclic shift value, a truncation position, a root sequence number, a frequency modulation slope, and a starting frequency of the first information is associated with the third information, or at least one of an initial value, a primitive polynomial, a cyclic shift value, a truncation position, a root sequence number, a frequency modulation slope, and a starting frequency of the second information is associated with the third information;

[0509] The third information includes at least one of the following:

[0510] Perception area identifier, identifier for whether it is used for perception, perception service identifier, perception service type identifier, perception target identifier, number of perception targets, perception measurement quantity identifier, device identifier involved in perception measurement, time domain resource information, frequency domain resource information, port index or antenna index, maximum number of ports, beam identifier, transmitting antenna panel index, codeword index, perception resource block index.

[0511] Optionally, the time domain resource information includes at least one of the following:

[0512] Information on a radio frame index, a subframe index, a time slot index, a symbol index, a duration, a time domain density, a cyclic prefix CP type, a CP length, and a time window, where the time window is a time window for calculating a measurement result; or,

[0513] The frequency domain resource information includes at least one of the following:

[0514] Resource element RE index, resource block RB index, frequency point information, frequency band information, bandwidth, frequency domain density, subcarrier spacing.

[0515] Optionally, the information of the time window includes at least one of the following:

[0516] The index of the time window, the number of the time windows, and the index of the time domain resource occupied by the signal in the time window;

[0517] wherein at least one of the initial value, primitive polynomial, cyclic shift value, truncation position, root sequence number, frequency modulation slope, and starting frequency of the first information is associated with an index of a time domain resource occupied by the signal within the time window;

[0518] At least one of the initial value, primitive polynomial, cyclic shift value, truncation position, root sequence number, frequency modulation slope, and starting frequency of the second information is associated with the index of the time window or the number of the time windows.

[0519] Optionally, the time window is associated with at least one of the following:

[0520] The length, time domain starting position, and time domain resource length of the second sequence.

[0521] Optionally, the device further comprises at least one of the following:

[0522] A second sending module, used for sending configuration information of the signal;

[0523] A receiving module, used for receiving configuration information of the signal;

[0524] The configuration information includes at least one of the following:

[0525] Signal resource identification, waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction, quasi-co-site QCL relationship, antenna port information.

[0526] Optionally, the sequence information includes at least one of the following:

[0527] The sequence type information of the first sequence, the sequence generation method of the first sequence, the sequence length of the first sequence, the sequence type information of the second sequence, the sequence generation method of the second sequence, and the sequence length of the second sequence.

[0528] Optionally, the signal is used for at least one of the following:

[0529] Perception-related measurements, communication-related measurements.

[0530] Optionally, the sending the signal includes:

[0531] Sending a plurality of said signals through multiple ports; or

[0532] sending a plurality of said signals to a plurality of devices;

[0533] The multiplexing method of the plurality of signals includes at least one of the following:

[0534] Time division multiplexing, frequency division multiplexing, and code division multiplexing.

[0535] Optionally, when the multiplexing mode includes code division multiplexing, the time-frequency domain resources occupied by the multiple signals are the same, wherein:

[0536] The first sequences corresponding to the multiple signals are different, or the second sequences corresponding to the multiple signals are different; or,

[0537] The first sequence and the second sequence corresponding to the multiple signals are the same, and the OCCs corresponding to the multiple signals are different; or,

[0538] The first sequences corresponding to the multiple signals are different or the second sequences corresponding to the multiple signals are different, and the OCCs corresponding to the multiple signals are different.

[0539] Optionally, when the first sequences corresponding to the plurality of signals are different, or the second sequences corresponding to the plurality of signals are different: the third information corresponding to each of the signals includes a port index of a corresponding port, wherein

[0540] At least one of an initial value, a primitive polynomial, a cyclic shift value, a truncation position, a root sequence number, a frequency modulation slope, and a starting frequency of the first information is associated with the third information, or at least one of an initial value, a primitive polynomial, a cyclic shift value, a truncation position, a root sequence number, a frequency modulation slope, and a starting frequency of the second information is associated with the third information;

[0541] The first sequence includes a sequence generated based on the first information, and the second sequence includes a sequence generated based on the second information.

[0542] Optionally, the first sequence is a sequence obtained by truncating or sampling a third sequence, and the third sequence is a sequence associated with frequency domain resources; or, the second sequence is a sequence obtained by truncating or sampling a fourth sequence, and the fourth sequence is a sequence associated with time domain resources; or,

[0543] The generating of a signal based on the first sequence and the second sequence comprises:

[0544] Generate a candidate signal based on a first sequence and a second sequence, wherein the first sequence is a sequence associated with a first frequency domain resource, and the second sequence is a sequence associated with a first time domain resource;

[0545] Intercepting or sampling the candidate signal based on the second frequency domain resource and the second time domain resource to obtain the signal;

[0546] The transmission resources of the signal include the second frequency domain resources and the second time domain resources.

[0547] The above-mentioned signal sending device can improve the communication performance of the communication equipment.

[0548] In the embodiments of the present application, the signal sending device may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. For example, the electronic device may be a terminal, or may be other devices other than a terminal. Exemplarily, the terminal may include but is not limited to the types of terminals listed in the embodiments of the present application, and other devices may be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0549] The signal sending device provided in the embodiment of the present application can achieve Figure 3 The various processes implemented by the method embodiment shown achieve the same technical effect and will not be described again here to avoid repetition.

[0550] See also Fig.11 , Fig.11 is a structural diagram of a signal receiving device provided in an embodiment of the present application, such as Fig.11 As shown, the signal receiving device 1100 includes:

[0551] The first receiving module 1101 is used to receive a signal, where the signal is a signal generated based on a first sequence and a second sequence, where the first sequence is a sequence associated with frequency domain resources, and the second sequence is a sequence associated with time domain resources.

[0552] Optionally, the N sequence elements in the sequence associated with the frequency domain resources are respectively associated with N frequency domain resources, where N is an integer greater than 1; or,

[0553] The M sequence elements in the sequence associated with the time domain resources are respectively associated with M time domain resources, where M is an integer greater than 1.

[0554] Optionally, the length of the first sequence is associated with at least one of the following:

[0555] The frequency domain resource length of the transmission resource, the frequency domain resource interval of the transmission resource; or,

[0556] The length of the second sequence is associated with at least one of the following:

[0557] The time domain resource length of the transmission resource and the time domain resource interval of the transmission resource;

[0558] The transmission resource is a transmission resource of the signal.

[0559] Optionally, the transmission resources of the signal meet the perceived performance requirements.

[0560] Optionally, the resource length of the transmission resource of the signal meets the perception resolution requirement; or,

[0561] The resource interval of the transmission resource of the signal meets the perception measurement range requirement.

[0562] Optionally, the time domain resource length of the signal transmission resource meets the Doppler resolution requirement, or the time domain resource length of the signal transmission resource meets the velocity resolution requirement; or,

[0563] The frequency domain resource length of the signal transmission resource meets the delay resolution requirement, or the frequency domain resource length of the signal transmission resource meets the distance resolution requirement; or,

[0564] The time domain resource interval of the transmission resource of the signal meets the Doppler unambiguous measurement requirement, or, the time domain resource interval of the transmission resource of the signal meets the Doppler unambiguous measurement requirement; or,

[0565] The frequency domain resource interval of the transmission resources of the signal meets the requirement of unambiguous measurement of delay, or the frequency domain resource interval of the transmission resources of the signal meets the requirement of unambiguous measurement of distance resolution.

[0566] Optionally, the first sequence includes a sequence generated based on first information, and the first information includes at least one of the following:

[0567] Pseudo-random sequence, ZC sequence, chirp signal, FMCW signal, Gray sequence, complementary Gray sequence, complementary code, Frank code, P code, Barker code, constant envelope zero autocorrelation CAZAC sequence, low ambiguity zone LAZ code, zero ambiguity zone ZAZ code, JPL sequence, Walsh-Hadamard code; or,

[0568] The second sequence includes a sequence generated based on second information, and the second information includes at least one of the following:

[0569] Pseudo-random sequence, ZC sequence, Chirp signal, FMCW signal, Gray sequence, complementary Gray sequence, complementary code, Frank code, P code, Barker code, CAZAC sequence, LAZ code, ZAZ code, JPL sequence, Walsh-Hadamard code.

[0570] Optionally, at least one of an initial value, a primitive polynomial, a cyclic shift value, a truncation position, a root sequence number, a frequency modulation slope, and a starting frequency of the first information is associated with the third information, or at least one of an initial value, a primitive polynomial, a cyclic shift value, a truncation position, a root sequence number, a frequency modulation slope, and a starting frequency of the second information is associated with the third information;

[0571] The third information includes at least one of the following:

[0572] Perception area identifier, identifier for whether it is used for perception, perception service identifier, perception service type identifier, perception target identifier, number of perception targets, perception measurement quantity identifier, device identifier involved in perception measurement, time domain resource information, frequency domain resource information, port index or antenna index, maximum number of ports, beam identifier, transmitting antenna panel index, codeword index, perception resource block index.

[0573] Optionally, the time domain resource information includes at least one of the following:

[0574] Information on a radio frame index, a subframe index, a time slot index, a symbol index, a duration, a time domain density, a cyclic prefix CP type, a CP length, and a time window, where the time window is a time window for calculating a measurement result; or,

[0575] The frequency domain resource information includes at least one of the following:

[0576] Resource element RE index, resource block RB index, frequency point information, frequency band information, bandwidth, frequency domain density, subcarrier spacing.

[0577] Optionally, the information of the time window includes at least one of the following:

[0578] The index of the time window, the number of the time windows, and the index of the time domain resource occupied by the signal in the time window;

[0579] wherein at least one of the initial value, primitive polynomial, cyclic shift value, truncation position, root sequence number, frequency modulation slope, and starting frequency of the first information is associated with an index of a time domain resource occupied by the signal within the time window;

[0580] At least one of the initial value, primitive polynomial, cyclic shift value, truncation position, root sequence number, frequency modulation slope, and starting frequency of the second information is associated with the index of the time window or the number of the time windows.

[0581] Optionally, the time window is associated with at least one of the following:

[0582] The length, time domain starting position, and time domain resource length of the second sequence.

[0583] Optionally, the device further comprises:

[0584] A second receiving module, used to receive configuration information of the signal;

[0585] The configuration information includes at least one of the following:

[0586] Signal resource identification, waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction, quasi-co-site QCL relationship, antenna port information.

[0587] Optionally, the sequence information includes at least one of the following:

[0588] The sequence type information of the first sequence, the sequence generation method of the first sequence, the sequence length of the first sequence, the sequence type information of the second sequence, the sequence generation method of the second sequence, and the sequence length of the second sequence.

[0589] Optionally, the signal is used for at least one of the following:

[0590] Perception-related measurements, communication-related measurements.

[0591] Optionally, the first sequence is a sequence obtained by truncating or sampling a third sequence, and the third sequence is a sequence associated with frequency domain resources; or, the second sequence is a sequence obtained by truncating or sampling a fourth sequence, and the fourth sequence is a sequence associated with time domain resources; or,

[0592] The first device generates a signal based on the first sequence and the second sequence, comprising:

[0593] The first device generates a candidate signal based on a first sequence and a second sequence, where the first sequence is a sequence associated with a first frequency domain resource, and the second sequence is a sequence associated with a first time domain resource;

[0594] Intercepting or sampling the candidate signal based on the second frequency domain resource and the second time domain resource to obtain the signal;

[0595] The transmission resources of the signal include the second frequency domain resources and the second time domain resources.

[0596] The signal receiving device can improve the communication performance of the communication equipment.

[0597] The signal receiving device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in the electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal or a network side device.

[0598] The signal receiving device provided in the embodiment of the present application can achieve Figure 5 The various processes implemented by the method embodiment shown achieve the same technical effect and will not be described again here to avoid repetition.

[0599] Optional, such as Fig.12 As shown, the embodiment of the present application further provides a communication device 1200, including a processor 1201 and a memory 1202, and the memory 1202 stores a program or instruction that can be run on the processor 1201. For example, when the communication device 1200 is a first device, the program or instruction is executed by the processor 1201 to implement the various steps of the above-mentioned signal sending method embodiment, and can achieve the same technical effect. When the communication device 1200 is a second device, the program or instruction is executed by the processor 1201 to implement the various steps of the above-mentioned signal receiving method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0600] The embodiment of the present application also provides a communication device, including a processor and a communication interface, wherein the processor is used to generate a signal based on a first sequence and a second sequence, the first sequence is a sequence associated with frequency domain resources, and the second sequence is a sequence associated with time domain resources, and the communication interface is used to send the signal. The communication device embodiment corresponds to the above-mentioned signal sending method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to the communication device embodiment, and can achieve the same technical effect.

[0601] Specifically, Fig.13 A schematic diagram of the hardware structure of a communication device for implementing an embodiment of the present application.

[0602] The communication device 1300 includes but is not limited to: a radio frequency unit 1301, a network module 1302, an audio output unit 1303, an input unit 1304, a sensor 1305, a display unit 1306, a user input unit 1307, an interface unit 1308, a memory 1309 and at least some of the components of a processor 1310.

[0603] Those skilled in the art will appreciate that the communication device 1300 may also include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 1310 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Fig.13 The communication device structure shown in the figure does not constitute a limitation on the communication device. The communication device may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0604] It should be understood that in the embodiment of the present application, the input unit 1304 may include a graphics processing unit (GPU) 13041 and a microphone 13042, and the graphics processing unit 13041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1306 may include a display panel 13061, and the display panel 13061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1307 includes a touch panel 13071 and at least one of other input devices 13072. The touch panel 13071 is also called a touch screen. The touch panel 13071 may include two parts: a touch detection device and a touch controller. Other input devices 13072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0605] In the embodiment of the present application, after receiving downlink data from the network side device, the RF unit 1301 can transmit the data to the processor 1310 for processing; in addition, the RF unit 1301 can send uplink data to the network side device. Generally, the RF unit 1301 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0606] The memory 1309 can be used to store software programs or instructions and various data. The memory 1309 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 1309 may include a volatile memory or a non-volatile memory, or the memory 1309 may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM). The memory 1309 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0607] The processor 1310 may include one or more processing units; optionally, the processor 1310 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 1310.

[0608] In this embodiment, the above communication device is a first device, and the first device is taken as a terminal for example:

[0609] Processor 1310, configured to generate a signal based on a first sequence and a second sequence, where the first sequence is a sequence associated with frequency domain resources, and the second sequence is a sequence associated with time domain resources;

[0610] The radio frequency unit 1301 is configured to send the signal.

[0611] Optionally, the N sequence elements in the sequence associated with the frequency domain resources are respectively associated with N frequency domain resources, where N is an integer greater than 1; or,

[0612] The M sequence elements in the sequence associated with the time domain resources are respectively associated with M time domain resources, where M is an integer greater than 1.

[0613] Optionally, the length of the first sequence is associated with at least one of the following:

[0614] The frequency domain resource length of the transmission resource, the frequency domain resource interval of the transmission resource; or,

[0615] The length of the second sequence is associated with at least one of the following:

[0616] The time domain resource length of the transmission resource and the time domain resource interval of the transmission resource;

[0617] The transmission resource is a transmission resource of the signal.

[0618] Optionally, the first device generating a signal based on the first sequence and the second sequence includes the following:

[0619] Performing phase rotation on the first sequence based on the second sequence to obtain the signal;

[0620] Multiplying the vector of the first sequence and the vector of the second sequence to obtain the signal, wherein the signal is a two-dimensional signal;

[0621] Performing a Kronecker product operation on the vectors of the second sequence and the vectors of the first sequence to obtain the signal;

[0622] The first sequence is scrambled in the time domain dimension based on the second sequence to obtain the signal.

[0623] Optionally, performing phase rotation on the first sequence based on the second sequence to obtain the signal includes:

[0624] The first sequence is phase rotated M times based on the M elements in the second sequence to obtain M sequences, and the signal includes the M sequences, where M is an integer greater than 1.

[0625] Optionally, the first sequence of vectors includes: [x(0), x(1), ..., x(N-1)] T , x(0), x(1), ..., x(N-1) represent N elements of the first sequence respectively, where N is an integer greater than 1; or,

[0626] The vectors of the second sequence include: [y(0), y(1), …, y(M-1)], where y(0), y(1), …, y(M-1) respectively represent the M elements of the second sequence, and N is an integer greater than M.

[0627] Optionally, performing M phase rotations on the first sequence based on M elements in the second sequence includes:

[0628] Based on the M elements in the second sequence and the first phase value, performing M phase rotations on the first sequence; or,

[0629] The multiplying the vector of the first sequence and the vector of the second sequence to obtain the signal includes:

[0630] Multiplying the vector of the first sequence and the vector of the second sequence, and then multiplying the operation result obtained by the multiplication with the second phase value to obtain the signal; or,

[0631] The step of performing a Kronecker product operation on the vectors of the second sequence and the vectors of the first sequence to obtain the signal comprises:

[0632] A Kronecker product operation is performed on the vectors of the second sequence and the vectors of the first sequence, and a result of the Kronecker product operation is multiplied by a third phase value to obtain the signal.

[0633] Optionally, the transmission resources of the signal meet the perceived performance requirements.

[0634] Optionally, the resource length of the transmission resource of the signal meets the perception resolution requirement; or,

[0635] The resource interval of the transmission resource of the signal meets the perception measurement range requirement.

[0636] Optionally, the time domain resource length of the signal transmission resource meets the Doppler resolution requirement, or the time domain resource length of the signal transmission resource meets the velocity resolution requirement; or,

[0637] The frequency domain resource length of the signal transmission resource meets the delay resolution requirement, or the frequency domain resource length of the signal transmission resource meets the distance resolution requirement; or,

[0638] The time domain resource interval of the transmission resource of the signal meets the Doppler unambiguous measurement requirement, or, the time domain resource interval of the transmission resource of the signal meets the Doppler unambiguous measurement requirement; or,

[0639] The frequency domain resource interval of the transmission resources of the signal meets the requirement of unambiguous measurement of delay, or the frequency domain resource interval of the transmission resources of the signal meets the requirement of unambiguous measurement of distance resolution.

[0640] Optionally, the first sequence includes a sequence generated based on first information, and the first information includes at least one of the following:

[0641] Pseudo-random sequence, ZC sequence, chirp signal, frequency modulated continuous wave FMCW signal, Gray sequence, complementary Gray sequence, complementary code, Frank code, P code, Barker code, constant envelope zero autocorrelation CAZAC sequence, low ambiguity zone LAZ code, zero ambiguity zone ZAZ code, JPL sequence, Walsh-Hadamard code; or,

[0642] The second sequence includes a sequence generated based on second information, and the second information includes at least one of the following:

[0643] Pseudo-random sequence, ZC sequence, Chirp signal, FMCW signal, Gray sequence, complementary Gray sequence, complementary code, Frank code, P code, Barker code, CAZAC sequence, LAZ code, ZAZ code, JPL sequence, Walsh-Hadamard code.

[0644] Optionally, at least one of an initial value, a primitive polynomial, a cyclic shift value, a truncation position, a root sequence number, a frequency modulation slope, and a starting frequency of the first information is associated with the third information, or at least one of an initial value, a primitive polynomial, a cyclic shift value, a truncation position, a root sequence number, a frequency modulation slope, and a starting frequency of the second information is associated with the third information;

[0645] The third information includes at least one of the following:

[0646] Perception area identifier, identifier for whether it is used for perception, perception service identifier, perception service type identifier, perception target identifier, number of perception targets, perception measurement quantity identifier, device identifier involved in perception measurement, time domain resource information, frequency domain resource information, port index or antenna index, maximum number of ports, beam identifier, transmitting antenna panel index, codeword index, perception resource block index.

[0647] Optionally, the time domain resource information includes at least one of the following:

[0648] Information on a radio frame index, a subframe index, a time slot index, a symbol index, a duration, a time domain density, a cyclic prefix CP type, a CP length, and a time window, where the time window is a time window for calculating a measurement result; or,

[0649] The frequency domain resource information includes at least one of the following:

[0650] Resource element RE index, resource block RB index, frequency point information, frequency band information, bandwidth, frequency domain density, subcarrier spacing.

[0651] Optionally, the information of the time window includes at least one of the following:

[0652] The index of the time window, the number of the time windows, and the index of the time domain resource occupied by the signal in the time window;

[0653] wherein at least one of the initial value, primitive polynomial, cyclic shift value, truncation position, root sequence number, frequency modulation slope, and starting frequency of the first information is associated with an index of a time domain resource occupied by the signal within the time window;

[0654] At least one of the initial value, primitive polynomial, cyclic shift value, truncation position, root sequence number, frequency modulation slope, and starting frequency of the second information is associated with the index of the time window or the number of the time windows.

[0655] Optionally, the time window is associated with at least one of the following:

[0656] The length, time domain starting position, and time domain resource length of the second sequence.

[0657] Optionally, the radio frequency unit 1301 is further used for at least one of the following:

[0658] Sending configuration information of the signal;

[0659] receiving configuration information of the signal;

[0660] The configuration information includes at least one of the following:

[0661] Signal resource identification, waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction, quasi-co-site QCL relationship, antenna port information.

[0662] Optionally, the sequence information includes at least one of the following:

[0663] The sequence type information of the first sequence, the sequence generation method of the first sequence, the sequence length of the first sequence, the sequence type information of the second sequence, the sequence generation method of the second sequence, and the sequence length of the second sequence.

[0664] Optionally, the signal is used for at least one of the following:

[0665] Perception-related measurements, communication-related measurements.

[0666] Optionally, the sending the signal includes:

[0667] Sending a plurality of said signals through multiple ports; or

[0668] sending a plurality of said signals to a plurality of devices;

[0669] The multiplexing method of the plurality of signals includes at least one of the following:

[0670] Time division multiplexing, frequency division multiplexing, and code division multiplexing.

[0671] Optionally, when the multiplexing mode includes code division multiplexing, the time-frequency domain resources occupied by the multiple signals are the same, wherein:

[0672] The first sequences corresponding to the multiple signals are different, or the second sequences corresponding to the multiple signals are different; or,

[0673] The first sequence and the second sequence corresponding to the multiple signals are the same, and the OCCs corresponding to the multiple signals are different; or,

[0674] The first sequences corresponding to the multiple signals are different or the second sequences corresponding to the multiple signals are different, and the OCCs corresponding to the multiple signals are different.

[0675] Optionally, when the first sequences corresponding to the plurality of signals are different, or the second sequences corresponding to the plurality of signals are different: the third information corresponding to each of the signals includes a port index of a corresponding port, wherein

[0676] At least one of an initial value, a primitive polynomial, a cyclic shift value, a truncation position, a root sequence number, a frequency modulation slope, and a starting frequency of the first information is associated with the third information, or at least one of an initial value, a primitive polynomial, a cyclic shift value, a truncation position, a root sequence number, a frequency modulation slope, and a starting frequency of the second information is associated with the third information;

[0677] The first sequence includes a sequence generated based on the first information, and the second sequence includes a sequence generated based on the second information.

[0678] Optionally, the first sequence is a sequence obtained by truncating or sampling a third sequence, and the third sequence is a sequence associated with frequency domain resources; or, the second sequence is a sequence obtained by truncating or sampling a fourth sequence, and the fourth sequence is a sequence associated with time domain resources; or,

[0679] The generating of a signal based on the first sequence and the second sequence comprises:

[0680] Generate a candidate signal based on a first sequence and a second sequence, wherein the first sequence is a sequence associated with a first frequency domain resource, and the second sequence is a sequence associated with a first time domain resource;

[0681] Intercepting or sampling the candidate signal based on the second frequency domain resource and the second time domain resource to obtain the signal;

[0682] The transmission resources of the signal include the second frequency domain resources and the second time domain resources.

[0683] The above communication device can improve the communication performance of the communication device.

[0684] The embodiment of the present application also provides a communication device, including a processor and a communication interface, wherein the communication interface is used to receive a signal, the signal is a signal generated based on a first sequence and a second sequence, the first sequence is a sequence associated with frequency domain resources, and the second sequence is a sequence associated with time domain resources. The communication device embodiment corresponds to the above-mentioned signal receiving method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to the communication device embodiment, and can achieve the same technical effect.

[0685] Specifically, the embodiment of the present application also provides a communication device. Fig.14 As shown, the communication device 1400 includes: an antenna 1401, a radio frequency device 1402, a baseband device 1403, a processor 1404 and a memory 1405. The antenna 1401 is connected to the radio frequency device 1402. In the uplink direction, the radio frequency device 1402 receives information through the antenna 1401 and sends the received information to the baseband device 1403 for processing. In the downlink direction, the baseband device 1403 processes the information to be sent and sends it to the radio frequency device 1402, and the radio frequency device 1402 processes the received information and sends it out through the antenna 1401.

[0686] The method executed by the communication device in the above embodiment may be implemented in the baseband device 1403, which includes a baseband processor.

[0687] The baseband device 1403 may include, for example, at least one baseband board on which a plurality of chips are arranged. Fig.14 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 1405 through a bus interface to call the program in the memory 1405 to execute the network device operations shown in the above method embodiment.

[0688] The communication device may further include a network interface 1406, such as a common public radio interface (CPRI).

[0689] Specifically, the communication device 1400 of the embodiment of the present invention further includes: instructions or programs stored in the memory 1405 and executable on the processor 1404, and the processor 1404 calls the instructions or programs in the memory 1405 to execute Fig.11 The methods executed by the modules shown achieve the same technical effects, and therefore will not be described here in detail to avoid repetition.

[0690] In this embodiment, the above-mentioned communication device is a second device, and an example is given in which the second device is a wireless access network device.

[0691] The radio frequency device 1402 is used to receive a signal, where the signal is a signal generated based on a first sequence and a second sequence, where the first sequence is a sequence associated with frequency domain resources, and the second sequence is a sequence associated with time domain resources.

[0692] Optionally, the N sequence elements in the sequence associated with the frequency domain resources are respectively associated with N frequency domain resources, where N is an integer greater than 1; or,

[0693] The M sequence elements in the sequence associated with the time domain resources are respectively associated with M time domain resources, where M is an integer greater than 1.

[0694] Optionally, the length of the first sequence is associated with at least one of the following:

[0695] The frequency domain resource length of the transmission resource, the frequency domain resource interval of the transmission resource; or,

[0696] The length of the second sequence is associated with at least one of the following:

[0697] The time domain resource length of the transmission resource and the time domain resource interval of the transmission resource;

[0698] The transmission resource is a transmission resource of the signal.

[0699] Optionally, the transmission resources of the signal meet the perceived performance requirements.

[0700] Optionally, the resource length of the transmission resource of the signal meets the perception resolution requirement; or,

[0701] The resource interval of the transmission resource of the signal meets the perception measurement range requirement.

[0702] Optionally, the time domain resource length of the signal transmission resource meets the Doppler resolution requirement, or the time domain resource length of the signal transmission resource meets the velocity resolution requirement; or,

[0703] The frequency domain resource length of the signal transmission resource meets the delay resolution requirement, or the frequency domain resource length of the signal transmission resource meets the distance resolution requirement; or,

[0704] The time domain resource interval of the transmission resource of the signal meets the Doppler unambiguous measurement requirement, or, the time domain resource interval of the transmission resource of the signal meets the Doppler unambiguous measurement requirement; or,

[0705] The frequency domain resource interval of the transmission resources of the signal meets the requirement of unambiguous measurement of delay, or the frequency domain resource interval of the transmission resources of the signal meets the requirement of unambiguous measurement of distance resolution.

[0706] Optionally, the first sequence includes a sequence generated based on first information, and the first information includes at least one of the following:

[0707] Pseudo-random sequence, ZC sequence, chirp signal, FMCW signal, Gray sequence, complementary Gray sequence, complementary code, Frank code, P code, Barker code, constant envelope zero autocorrelation CAZAC sequence, low ambiguity zone LAZ code, zero ambiguity zone ZAZ code, JPL sequence, Walsh-Hadamard code; or,

[0708] The second sequence includes a sequence generated based on second information, and the second information includes at least one of the following:

[0709] Pseudo-random sequence, ZC sequence, Chirp signal, FMCW signal, Gray sequence, complementary Gray sequence, complementary code, Frank code, P code, Barker code, CAZAC sequence, LAZ code, ZAZ code, JPL sequence, Walsh-Hadamard code.

[0710] Optionally, at least one of an initial value, a primitive polynomial, a cyclic shift value, a truncation position, a root sequence number, a frequency modulation slope, and a starting frequency of the first information is associated with the third information, or at least one of an initial value, a primitive polynomial, a cyclic shift value, a truncation position, a root sequence number, a frequency modulation slope, and a starting frequency of the second information is associated with the third information;

[0711] The third information includes at least one of the following:

[0712] Perception area identifier, identifier for whether it is used for perception, perception service identifier, perception service type identifier, perception target identifier, number of perception targets, perception measurement quantity identifier, device identifier involved in perception measurement, time domain resource information, frequency domain resource information, port index or antenna index, maximum number of ports, beam identifier, transmitting antenna panel index, codeword index, perception resource block index.

[0713] Optionally, the time domain resource information includes at least one of the following:

[0714] Information on a radio frame index, a subframe index, a time slot index, a symbol index, a duration, a time domain density, a cyclic prefix CP type, a CP length, and a time window, where the time window is a time window for calculating a measurement result; or,

[0715] The frequency domain resource information includes at least one of the following:

[0716] Resource element RE index, resource block RB index, frequency point information, frequency band information, bandwidth, frequency domain density, subcarrier spacing.

[0717] Optionally, the information of the time window includes at least one of the following:

[0718] The index of the time window, the number of the time windows, and the index of the time domain resource occupied by the signal in the time window;

[0719] wherein at least one of the initial value, primitive polynomial, cyclic shift value, truncation position, root sequence number, frequency modulation slope, and starting frequency of the first information is associated with an index of a time domain resource occupied by the signal within the time window;

[0720] At least one of the initial value, primitive polynomial, cyclic shift value, truncation position, root sequence number, frequency modulation slope, and starting frequency of the second information is associated with the index of the time window or the number of the time windows.

[0721] Optionally, the time window is associated with at least one of the following:

[0722] The length, time domain starting position, and time domain resource length of the second sequence.

[0723] Optionally, the radio frequency device 1402 is further used for:

[0724] receiving configuration information of the signal;

[0725] The configuration information includes at least one of the following:

[0726] Signal resource identification, waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction, quasi-co-site QCL relationship, antenna port information.

[0727] Optionally, the sequence information includes at least one of the following:

[0728] The sequence type information of the first sequence, the sequence generation method of the first sequence, the sequence length of the first sequence, the sequence type information of the second sequence, the sequence generation method of the second sequence, and the sequence length of the second sequence.

[0729] Optionally, the signal is used for at least one of the following:

[0730] Perception-related measurements, communication-related measurements.

[0731] Optionally, the first sequence is a sequence obtained by truncating or sampling a third sequence, and the third sequence is a sequence associated with frequency domain resources; or, the second sequence is a sequence obtained by truncating or sampling a fourth sequence, and the fourth sequence is a sequence associated with time domain resources; or,

[0732] The first device generates a signal based on the first sequence and the second sequence, comprising:

[0733] The first device generates a candidate signal based on a first sequence and a second sequence, where the first sequence is a sequence associated with a first frequency domain resource, and the second sequence is a sequence associated with a first time domain resource;

[0734] Intercepting or sampling the candidate signal based on the second frequency domain resource and the second time domain resource to obtain the signal;

[0735] The transmission resources of the signal include the second frequency domain resources and the second time domain resources.

[0736] The above communication device can improve the communication performance of the communication device.

[0737] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned signal sending method or signal receiving method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0738] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0739] The embodiments of the present application further provide a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned signal sending method or signal receiving method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0740] An embodiment of the present application also provides a wireless communication system, including: a first device and a second device, wherein the first device can be used to execute the steps of the signal sending method as described in the embodiment of the present application, and the second device can be used to execute the steps of the signal receiving method as described in the embodiment of the present application.

[0741] It should be noted that, in this article, the terms "comprise", "include" 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 includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0742] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, disk, CD, etc.), including several instructions to enable a terminal or a network-side device to execute the methods described in each embodiment of the present application.

[0743] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of the present application and the scope of protection of the claims, and these implementation methods are all within the protection of the present application.

Claims

1. A signal sending method, characterized in that: include: The first device generates a signal based on a first sequence and a second sequence, where the first sequence is a sequence associated with frequency domain resources, and the second sequence is a sequence associated with time domain resources; The first device sends the signal.

2. The method according to claim 1, characterized in that The N sequence elements in the sequence associated with the frequency domain resources are respectively associated with N frequency domain resources, where N is an integer greater than 1; or, The M sequence elements in the sequence associated with the time domain resources are respectively associated with M time domain resources, where M is an integer greater than 1.

3. The method according to claim 1 or 2, characterized in that The length of the first sequence is associated with at least one of the following: The frequency domain resource length of the transmission resource, the frequency domain resource interval of the transmission resource; or, The length of the second sequence is associated with at least one of the following: The time domain resource length of the transmission resource and the time domain resource interval of the transmission resource; The transmission resource is a transmission resource of the signal.

4. The method according to any one of claims 1 to 3, characterized in that The first device generating a signal based on the first sequence and the second sequence includes one of the following: Performing phase rotation on the first sequence based on the second sequence to obtain the signal; Multiplying the vector of the first sequence and the vector of the second sequence to obtain the signal, wherein the signal is a two-dimensional signal; Performing a Kronecker product operation on the vectors of the second sequence and the vectors of the first sequence to obtain the signal; The first sequence is scrambled in the time domain dimension based on the second sequence to obtain the signal.

5. The method according to claim 4, characterized in that The performing phase rotation on the first sequence based on the second sequence to obtain the signal includes: The first sequence is phase rotated M times based on the M elements in the second sequence to obtain M sequences, and the signal includes the M sequences, where M is an integer greater than 1.

6. The method according to claim 4, characterized in that The first sequence of vectors includes: [x(0), x(1), ..., x(N-1)] T , x(0), x(1), ..., x(N-1) represent N elements of the first sequence respectively, and N is an integer greater than 1; or, The vector of the second sequence includes: [y(0), y(1), …, y(M-1)], where y(0), y(1), …, y(M-1) respectively represent the M elements of the second sequence, and N is an integer greater than M.

7. The method according to claim 5 or 6, characterized in that The performing M phase rotations on the first sequence based on the M elements in the second sequence comprises: Based on the M elements in the second sequence and the first phase value, performing M phase rotations on the first sequence; or, The multiplying the vector of the first sequence and the vector of the second sequence to obtain the signal includes: Multiplying the vector of the first sequence and the vector of the second sequence, and then multiplying the operation result obtained by the multiplication with the second phase value to obtain the signal; or, The step of performing a Kronecker product operation on the vectors of the second sequence and the vectors of the first sequence to obtain the signal comprises: A Kronecker product operation is performed on the vectors of the second sequence and the vectors of the first sequence, and a result of the Kronecker product operation is multiplied by a third phase value to obtain the signal.

8. The method according to any one of claims 1 to 7, characterized in that The transmission resources of the signal meet the perceived performance requirements.

9. The method according to claim 8, characterized in that The resource length of the transmission resource of the signal meets the perceptual resolution requirement; or, The resource interval of the transmission resource of the signal meets the perception measurement range requirement.

10. The method according to claim 9, characterized in that The time domain resource length of the transmission resource of the signal meets the Doppler resolution requirement, or the time domain resource length of the transmission resource of the signal meets the velocity resolution requirement; or, The frequency domain resource length of the signal transmission resource meets the delay resolution requirement, or the frequency domain resource length of the signal transmission resource meets the distance resolution requirement; or, The time domain resource interval of the transmission resource of the signal meets the Doppler unambiguous measurement requirement, or, the time domain resource interval of the transmission resource of the signal meets the Doppler unambiguous measurement requirement; or, The frequency domain resource interval of the transmission resources of the signal meets the requirement of unambiguous measurement of delay, or the frequency domain resource interval of the transmission resources of the signal meets the requirement of unambiguous measurement of distance resolution.

11. The method according to any one of claims 1 to 10, characterized in that The first sequence includes a sequence generated based on first information, and the first information includes at least one of the following: Pseudo-random sequence, ZC sequence, chirp signal, frequency modulated continuous wave FMCW signal, Gray sequence, complementary Gray sequence, complementary code, Frank code, P code, Barker code, constant envelope zero autocorrelation CAZAC sequence, low ambiguity zone LAZ code, zero ambiguity zone ZAZ code, JPL sequence, Walsh-Hadamard code; or, The second sequence includes a sequence generated based on second information, and the second information includes at least one of the following: Pseudo-random sequence, ZC sequence, Chirp signal, FMCW signal, Gray sequence, complementary Gray sequence, complementary code, Frank code, P code, Barker code, CAZAC sequence, LAZ code, ZAZ code, JPL sequence, Walsh-Hadamard code.

12. The method according to claim 11, characterized in that At least one of the initial value, primitive polynomial, cyclic shift value, truncation position, root sequence number, frequency modulation slope, and starting frequency of the first information is associated with the third information, or at least one of the initial value, primitive polynomial, cyclic shift value, truncation position, root sequence number, frequency modulation slope, and starting frequency of the second information is associated with the third information; The third information includes at least one of the following: Perception area identifier, identifier for whether it is used for perception, perception service identifier, perception service type identifier, perception target identifier, number of perception targets, perception measurement quantity identifier, device identifier involved in perception measurement, time domain resource information, frequency domain resource information, port index or antenna index, maximum number of ports, beam identifier, transmitting antenna panel index, codeword index, perception resource block index.

13. The method according to claim 12, characterized in that The time domain resource information includes at least one of the following: Information on a radio frame index, a subframe index, a time slot index, a symbol index, a duration, a time domain density, a cyclic prefix CP type, a CP length, and a time window, where the time window is a time window for calculating a measurement result; or, The frequency domain resource information includes at least one of the following: Resource element RE index, resource block RB index, frequency point information, frequency band information, bandwidth, frequency domain density, subcarrier spacing.

14. The method according to claim 13, characterized in that The information of the time window includes at least one of the following: The index of the time window, the number of the time windows, and the index of the time domain resource occupied by the signal in the time window; wherein at least one of the initial value, primitive polynomial, cyclic shift value, truncation position, root sequence number, frequency modulation slope, and starting frequency of the first information is associated with an index of a time domain resource occupied by the signal within the time window; At least one of the initial value, primitive polynomial, cyclic shift value, truncation position, root sequence number, frequency modulation slope, and starting frequency of the second information is associated with the index of the time window or the number of the time windows.

15. The method according to claim 13 or 14, characterized in that The time window is associated with at least one of the following: The length, time domain starting position, and time domain resource length of the second sequence.

16. The method according to any one of claims 1 to 15, characterized in that Before the first device sends the signal, the method further includes at least one of the following: Configuration information for sending the signal by the first device; The first device receives configuration information of the signal; The configuration information includes at least one of the following: Signal resource identification, waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction, quasi-co-site QCL relationship, antenna port information.

17. The method according to claim 16, characterized in that The sequence information includes at least one of the following: The sequence type information of the first sequence, the sequence generation method of the first sequence, the sequence length of the first sequence, the sequence type information of the second sequence, the sequence generation method of the second sequence, and the sequence length of the second sequence.

18. The method according to any one of claims 1 to 17, characterized in that The signal is used for at least one of the following: Perception-related measurements, communication-related measurements.

19. The method according to any one of claims 1 to 18, characterized in that The first device sending the signal includes: The first device sends a plurality of the signals through multiple ports; or The first device sends a plurality of the signals to a plurality of devices; The multiplexing method of the plurality of signals includes at least one of the following: Time division multiplexing, frequency division multiplexing, and code division multiplexing.

20. The method of claim 19, wherein: In the case where the multiplexing mode includes code division multiplexing, the time-frequency domain resources occupied by the multiple signals are the same, wherein: The first sequences corresponding to the multiple signals are different, or the second sequences corresponding to the multiple signals are different; or, The first sequence and the second sequence corresponding to the multiple signals are the same, and the orthogonal cover codes OCC corresponding to the multiple signals are different; or, The first sequences corresponding to the multiple signals are different or the second sequences corresponding to the multiple signals are different, and the OCCs corresponding to the multiple signals are different.

21. The method according to claim 20, characterized in that In the case where the first sequences corresponding to the plurality of signals are different, or the second sequences corresponding to the plurality of signals are different: the third information corresponding to each of the signals includes a port index of a corresponding port, wherein At least one of an initial value, a primitive polynomial, a cyclic shift value, a truncation position, a root sequence number, a frequency modulation slope, and a starting frequency of the first information is associated with the third information, or at least one of an initial value, a primitive polynomial, a cyclic shift value, a truncation position, a root sequence number, a frequency modulation slope, and a starting frequency of the second information is associated with the third information; The first sequence includes a sequence generated based on the first information, and the second sequence includes a sequence generated based on the second information.

22. The method according to any one of claims 1 to 21, characterized in that The first sequence is a sequence obtained by truncating or sampling a third sequence, and the third sequence is a sequence associated with frequency domain resources; or, the second sequence is a sequence obtained by truncating or sampling a fourth sequence, and the fourth sequence is a sequence associated with time domain resources; or, The first device generates a signal based on the first sequence and the second sequence, comprising: The first device generates a candidate signal based on a first sequence and a second sequence, where the first sequence is a sequence associated with a first frequency domain resource, and the second sequence is a sequence associated with a first time domain resource; Intercepting or sampling the candidate signal based on the second frequency domain resource and the second time domain resource to obtain the signal; The transmission resources of the signal include the second frequency domain resources and the second time domain resources.

23. A signal receiving method, characterized in that: include: The second device receives a signal, where the signal is a signal generated based on a first sequence and a second sequence, where the first sequence is a sequence associated with frequency domain resources, and the second sequence is a sequence associated with time domain resources.

24. The method of claim 23, wherein: Before the second device receives the signal, the method further includes: The second device receives configuration information of the signal; The configuration information includes at least one of the following: Signal resource identification, waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction, quasi-co-site QCL relationship, antenna port information.

25. The method of claim 24, wherein: The sequence information includes at least one of the following: The sequence type information of the first sequence, the sequence generation method of the first sequence, the sequence length of the first sequence, the sequence type information of the second sequence, the sequence generation method of the second sequence, and the sequence length of the second sequence.

26. A signal sending device, characterized in that: include: A generating module, configured to generate a signal based on a first sequence and a second sequence, wherein the first sequence is a sequence associated with frequency domain resources, and the second sequence is a sequence associated with time domain resources; The first sending module is used to send the signal.

27. A signal receiving device, characterized in that: include: The first receiving module is used to receive a signal, where the signal is a signal generated based on a first sequence and a second sequence, where the first sequence is a sequence associated with frequency domain resources, and the second sequence is a sequence associated with time domain resources.

28. A device, characterized in that It includes a processor and a memory, the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, it implements the steps of the signal sending method as described in any one of claims 1 to 22, or when the program or instruction is executed by the processor, it implements the steps of the signal receiving method as described in any one of claims 23 to 25.

29. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, it implements the steps of the signal sending method as described in any one of claims 1 to 22, or implements the steps of the signal receiving method as described in any one of claims 23 to 25.

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