Sensing pilot frequency configuration method and equipment

Abstract

Disclosed are a method and device for configuring a sensing pilot frequency, belonging to the technical field of communications, the method for configuring a sensing pilot frequency in an embodiment of the present application comprising: a transmitting device transmitting first information to a receiving device, the first information being used for indicating configuration information of a sensing pilot frequency included in a transmission signal; the transmission signal is obtained by adding a symbol based on the sensing pilot frequency and a target symbol in a time-frequency domain, and the target symbol comprises a data symbol of the time-frequency domain and a demodulation reference signal (DMRS) symbol.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a method and device for configuring a perception pilot. Background Art

[0002] Figure 1 A block diagram of a cross-transform domain interawareness system is shown. On the transmitting side, the pilot defined in the delayed Doppler domain is transformed to the time-frequency domain and then scrambled (scrambling is optional), and is superimposed and mapped on the time-frequency domain resource grid together with the scrambled (scrambling is optional) data defined in the time-frequency domain. Then it is converted into a time domain signal for transmission through orthogonal frequency division multiplexing (OFDM) modulation. On the perception receiving side, the received signal is demodulated by OFDM to obtain a time-frequency domain perception signal, and the obtained signal is transformed to the delayed Doppler domain after descrambling (descrambling is optional) to obtain a delayed Doppler domain perception signal, and then perception detection of the delayed Doppler domain perception signal is performed. On the communication receiving side, the received signal is demodulated by OFDM to obtain a time-frequency domain communication signal, and the obtained signal is descrambled (descrambling is optional) and channel estimation is performed in the time-frequency domain. Using the obtained channel estimation result, symbol detection is performed on the time-frequency domain communication signal. Among them, X p [k, l] represents the pilot symbol mapped to the delay-Doppler domain resource of size M×N, X d [k, l] represents data symbols mapped to time-frequency domain resources of size M×N.

[0003] With respect to the above system, how to make the transmitting-side device and the receiving-side device have consistent understanding of the relevant information of the perception pilot so as to improve the communication reliability is a problem that those skilled in the art need to solve. Summary of the invention

[0004] The embodiments of the present application provide a method and device for configuring a perceptual pilot, which can solve the problem of how to make a transmitting side device and a receiving side device have a consistent understanding of relevant information of the perceptual pilot.

[0005] In a first aspect, a method for configuring a perceptual pilot is provided, which is performed by a sending device, and the method includes:

[0006] A sending device sends first information to a receiving device, where the first information is used to indicate configuration information of a perceptual pilot included in a transmission signal; the transmission signal is obtained by adding a symbol of the perceptual pilot to a target symbol in a time-frequency domain, and the target symbol includes a data symbol in the time-frequency domain and a demodulation reference signal DMRS symbol.

[0007] In a second aspect, a method for configuring a perceptual pilot is provided, which is performed by a receiving device, and the method includes:

[0008] A receiving device receives first information sent by a sending device, where the first information is used to indicate configuration information of a perceptual pilot included in a transmission signal; the transmission signal is obtained by adding a symbol of the perceptual pilot to a target symbol in a time-frequency domain, and the target symbol includes a data symbol in the time-frequency domain and a demodulation reference signal DMRS symbol.

[0009] In a third aspect, a perception pilot configuration device is provided, including:

[0010] A sending module is used to send first information to a receiving device, where the first information is used to indicate configuration information of a perceptual pilot included in a transmission signal; the transmission signal is obtained by adding a symbol of the perceptual pilot to a target symbol in the time-frequency domain, and the target symbol includes a data symbol in the time-frequency domain and a demodulation reference signal DMRS symbol.

[0011] In a fourth aspect, a perception pilot configuration device is provided, including:

[0012] A receiving module is used to receive first information sent by a sending device, where the first information is used to indicate configuration information of a perceptual pilot included in a transmission signal; the transmission signal is obtained by adding a symbol of the perceptual pilot to a target symbol in the time-frequency domain, and the target symbol includes a data symbol in the time-frequency domain and a demodulation reference signal DMRS symbol.

[0013] In a fifth aspect, a sending device is provided, which includes a processor and a memory, wherein the memory stores a program or instruction that can be executed on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0014] In a sixth aspect, a sending device is provided, comprising a processor and a communication interface, wherein the communication interface is used to send first information to a receiving device, the first information being used to indicate configuration information of a perceptual pilot included in a transmission signal; the transmission signal is obtained by adding a symbol of the perceptual pilot to a target symbol in the time-frequency domain, and the target symbol comprises a data symbol in the time-frequency domain and a demodulation reference signal DMRS symbol.

[0015] In a seventh aspect, a receiving 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 method described in the second aspect are implemented.

[0016] In an eighth aspect, a receiving device is provided, comprising a processor and a communication interface, wherein the communication interface is used to receive first information sent by a sending device, the first information being used to indicate configuration information of a perceptual pilot included in a transmission signal; the transmission signal is obtained by adding symbols of the perceptual pilot and target data symbols in the time-frequency domain, and the target symbols include data symbols in the time-frequency domain and demodulation reference signal DMRS symbols.

[0017] In a ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0018] In the tenth aspect, a wireless communication system is provided, comprising: a sending device and a receiving device, wherein the sending device can be used to execute the steps of the method described in the first aspect, and the receiving device can be used to execute the steps of the method described in the second aspect.

[0019] In the eleventh aspect, a chip is provided, comprising 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 method described in the first aspect, or to implement the method described in the second aspect.

[0020] In a twelfth 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 perceptual pilot configuration method as described in the first aspect or the second aspect.

[0021] In an embodiment of the present application, a sending device sends first information to a receiving device, where the first information is used to indicate configuration information of a perceptual pilot included in a transmission signal; the transmission signal is obtained by adding a symbol based on the perceptual pilot and a target symbol in the time-frequency domain, and the target symbol includes a data symbol and a demodulation reference signal DMRS symbol in the time-frequency domain; that is, the sending device indicates the configuration information of the perceptual pilot to the receiving device, and the receiving device can obtain the configuration information of the perceptual pilot, so that the sending device and the receiving device have a consistent understanding of the configuration information of the perceptual pilot, which facilitates the receiving device to perform signal reception processing and improves communication reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of an ISAC system;

[0023] Figure 2 is a schematic diagram of the architecture of a wireless communication system provided in an embodiment of the present application;

[0024] Figure 3This is one of the flow charts of the method for configuring the perception pilot provided in the embodiment of the present application;

[0025] Figure 4 This is one of the principle schematic diagrams of the method for configuring the perception pilot provided in the embodiment of the present application;

[0026] Figure 5 This is the second principle schematic diagram of the method for configuring the perception pilot provided in the embodiment of the present application;

[0027] Figure 6 This is one of the simulation result schematic diagrams of the perceptual pilot configuration method provided in the embodiment of the present application;

[0028] Figure 7 This is the second schematic diagram of simulation results of the perceptual pilot configuration method provided in the embodiment of the present application;

[0029] Figure 8 This is the second flow chart of the perception pilot configuration method provided in the embodiment of the present application;

[0030] Fig. 9 It is one of the structural schematic diagrams of the perception pilot configuration device provided in the embodiment of the present application;

[0031] Fig.10 This is the second structural diagram of the perception pilot configuration device provided in the embodiment of the present application;

[0032] Fig.11 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0033] Fig.12 is a schematic diagram of the structure of a terminal in an embodiment of the present application;

[0034] Fig.13 It is a structural diagram of the network side device of 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 thGeneration, 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, AS) 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] First, the application scenarios involved in the embodiments of the present application are introduced:

[0042] The solution of the embodiment of the present application can be applied to an Integrated Sensing And Communication (ISAC) system, which integrates the dual functions of communication and perception, and realizes hardware sharing, spectrum sharing, and protocol interoperability between communication and perception signals, thereby realizing an integrated design of communication and perception functions.

[0043] The biggest challenge facing ISAC technology is the coordination of communication and perception. The function of the communication system is to transmit information, so the optimization goal of the communication system is to approximate the Shannon channel capacity described in information theory; the function of the perception system is target detection, such as a typical radar system, and its optimization goal is the optimal lower limit of the estimated variance of the target parameters (distance, speed, Doppler, etc.), that is, the Cramér-Rao bound of the fuzzy function.

[0044] like Figure 1 The ISAC system across transform domains shown has the following advantages:

[0045] 1) The pilot block in the delayed Doppler domain has the full diversity characteristics of the time-frequency domain, which can perform more accurate perception detection.

[0046] 2) The pilot block in the delay-Doppler domain can be transformed into the time-frequency domain, and modulated and demodulated based on OFDM in the time-frequency domain with the data symbols multiplexed in the time-frequency domain, which is compatible with the existing protocols.

[0047] 3) The time-frequency domain resources occupied by the pilot block in the delay Doppler domain can span multiple communication time slots and multiple communication sub-bands, which is decoupled from the parameter set setting of the communication system and is suitable for flexible deployment.

[0048] 4) By utilizing the excellent autocorrelation and cross-correlation characteristics of the designed two-dimensional pilot block, the interference effect of the communication signal on the detection result can be ignored during perception detection.

[0049] However, as interference, the impact of perception signals on the demodulation of the communication system cannot be ignored. Therefore, in the embodiment of the present application, a corresponding signal receiving and processing mechanism is designed to address the problem of interference of perception signals on communication signals, and corresponding signaling content and signaling interaction process are defined, thereby ensuring the communication function in the proposed synaesthesia system.

[0050] The method of the embodiment of the present application is applicable to a multi-user scenario (ie, the sensing pilot range covers the time-frequency domain resources of multiple users).

[0051] The following describes in detail the perceptual pilot configuration method provided in the embodiment of the present application through some embodiments and their application scenarios in combination with the accompanying drawings.

[0052] Please refer to Figure 3 The embodiment of the present application provides a method for configuring a perceptual pilot. The execution subject of the embodiment is a sending device, and the method includes:

[0053] Step 101: A sending device sends first information to a receiving device, where the first information is used to indicate configuration information of a perceptual pilot included in a transmission signal; the transmission signal is obtained by adding symbols based on the perceptual pilot and target symbols in the time-frequency domain, and the target symbols include data symbols and demodulation reference signal DMRS symbols in the time-frequency domain.

[0054] Specifically, the transmission signal between the transmitting device and the receiving device is obtained by adding the symbol of the perceptual pilot in the time-frequency domain to the target symbol in the time-frequency domain, such as Figure 4 As shown, the pilot block size is N P ×M P , N P ≤N,M P ≤M, mapped in the delay-Doppler domain resource of size N×M. The sensing pilot is transformed by the Inverse Symplectic Finite Fourier Transform (ISFFT) (i.e., transformed into the time-frequency domain) and placed in superposition with the target symbol, which includes, for example, modulated data symbols (such as OFDM modulation) and demodulation reference signals (DMRS).

[0055] exist Figure 4 In the case of OFDM, pilot symbols are placed on top of data symbols, and pilot symbols can be configured across data blocks (such as subbands / time slots of OFDM). Figure 5 As shown, for example, DMRS symbols are orthogonal to data symbol resources.

[0056] Optionally, for an OFDM communication system, it usually uses a comb-mapped demodulation reference signal DMRS for channel estimation, and the receiver uses the estimated channel for channel equalization. Since the effect of the channel on the signal is multiplication in the time-frequency domain, a simple matrix dot division can be used, that is, the received DMRS is divided by the sent DMRS, and the quotient matrix is ​​the desired channel matrix.

[0057] In the embodiment of the present application, the perception pilot and data in the time-frequency domain are superimposed and placed, so the equivalent DMRS that needs to be considered is the sum of the transmitted DMRS and the perception pilot at the corresponding position, that is, the equivalent DMRS used for channel estimation, which is Figure 5 (lower) DMRS embedded in OFDM data and (upper) the sum of the perceptual pilot subsets at corresponding positions in the perceptual pilot.

[0058] After obtaining the equivalent pilot, the estimated value of the channel matrix in the time-frequency domain can be obtained using a conventional channel estimation method.

[0059] Using the estimated channel matrix and the configuration information of the perceptual pilot (ie, prior knowledge), the interference of the perceptual pilot on the data in the time-frequency domain can be calculated. Optionally, this interference can be removed before channel equalization.

[0060] The above method can achieve the same channel estimation and demodulation results as when the sensing pilot is not introduced, such as Figure 6 and Figure 7 shown.

[0061] However, the premise for implementing the above solution is that the receiving device needs to have prior information of the perception pilot in the time-frequency domain, that is, the sending device can send first information to the receiving device to indicate the configuration information of the perception pilot.

[0062] In the method of this embodiment, a sending device sends first information to a receiving device, where the first information is used to indicate configuration information of a perceptual pilot included in a transmission signal; the transmission signal is obtained by adding a symbol based on the perceptual pilot and a target symbol in the time-frequency domain, and the target symbol includes a data symbol and a demodulation reference signal DMRS symbol in the time-frequency domain; that is, the sending device indicates the configuration information of the perceptual pilot to the receiving device, and the receiving device can obtain the configuration information of the perceptual pilot, so that the sending device and the receiving device have a consistent understanding of the configuration information of the perceptual pilot, which facilitates the receiving device to perform signal reception processing and improves communication reliability.

[0063] Optionally, the first information may be sent via broadcast, multicast or unicast.

[0064] One implementation method a:

[0065] In the case where the first information is sent via a broadcast message or a multicast message, the configuration information of the perceptual pilot includes at least one of the following: element information included in the expression form of the perceptual pilot in the delay Doppler domain; element information included in the expression form of the perceptual pilot in the time-frequency domain; related information for generating a base sequence of the perceptual pilot;

[0066] The related information of the base sequence includes at least one of the following: the base sequence and the generation information of the base sequence.

[0067] Specifically, according to the role of the perceptual pilot in symbol detection and channel estimation, the receiving device usually needs to know at least one of the following information: element information contained in the expression form of the perceptual pilot in the delay Doppler domain; element information contained in the expression form of the perceptual pilot in the time-frequency domain; related information for generating the base sequence of the perceptual pilot;

[0068] The elements included in the expression form of the perceptual pilot in the delayed Doppler domain can be represented by a delayed Doppler domain matrix form S, that is, the elements included in the expression form of the perceptual pilot in the delayed Doppler domain are the matrix elements of S in the delayed Doppler domain.

[0069] The element information contained in the expression form of the perception pilot in the time-frequency domain can be expressed, for example, by the time-frequency domain form of the perception pilot, that is, by the transformation form of the delay Doppler domain matrix form S in the time-frequency domain Indicates that F M represents the M-point Fourier transform matrix, Represents the N-point inverse Fourier transform matrix, that is, the expression of the perception pilot in the time-frequency domain contains the elements in the time-frequency domain The matrix elements of .

[0070] Optionally, in other embodiments, the expression form may also be a set, an array, a sequence, etc., which is not limited in the embodiments of the present application.

[0071] The base sequence is used to generate a perceptual pilot. For example, the perceptual pilot S can be generated by using a base sequence with good autocorrelation characteristics.

[0072] Optionally, the generation information of the base sequence includes at least one of the following: information of generation parameters and generation formula;

[0073] When the base sequence is a ZC sequence, the generation parameter includes at least one of the following: a root sequence number of the base sequence, a sequence length; or

[0074] In the case where the base sequence is an M sequence, the generation parameter includes at least one of the following: an initial value of the base sequence, a truncation position, and a sequence length; the information of the generation formula includes: information of a primitive polynomial of the M sequence.

[0075] Optionally, the first information sent by the broadcast or multicast message may be carried by a physical broadcast channel (PBCH) or a system information block (SIB).

[0076] In the above implementation, the global configuration information of the perception pilot is sent through broadcast or multicast messages, which can save overhead, realize the interaction of prior information of the perception pilot, and improve the performance of the communication receiver.

[0077] After step 101, the following steps may also be performed:

[0078] The sending device sends second information to the receiving device, where the second information is used to indicate the time-frequency domain position of the perception pilot.

[0079] Specifically, since the first information sent through the broadcast message or the multicast message only includes global information of the perception pilot, that is, information shared by multiple receiving devices, for a specific receiving device, the second information can be used to indicate the time-frequency domain position of the perception pilot corresponding to the specific receiving device, thereby obtaining the perception pilot subset corresponding to the DMRS, so that the receiving device can perform channel estimation.

[0080] The time-frequency domain position of the perception pilot corresponding to the receiving device, that is, the resource position of the perception pilot mapped in the time-frequency domain, for example, the perception pilot corresponding to the receiving device is Figure 5 The absolute position in the upper middle resource block, or the relative position of the perception pilot and data resource block corresponding to the receiving device.

[0081] Optionally, the second information may be sent via a broadcast message, a multicast message, or a unicast message.

[0082] In the case where the second information is sent via a broadcast message or a multicast message, the time-frequency domain position of the perception pilot is indicated by a relative position between the perception pilot and a reference point in the time-frequency domain resources; or,

[0083] In the case where the second information is sent via a unicast message, the time-frequency domain position of the perceptual pilot is indicated by the position information of the perceptual pilot overlapping with the DMRS of the receiving device; the position information of the perceptual pilot overlapping with the DMRS of the receiving device is a position index in the perceptual pilots corresponding to the multiple receiving devices, or an offset value relative to the DMRS position index of the receiving device.

[0084] Specifically, (1) the second information is sent through a broadcast message or a multicast message, a known reference point (such as reference point Point A in NR) is determined in the time-frequency domain resources, and the relative position of the perceptual pilot and the known reference point is indicated. Since this reference point is for the communication user, the receiving device corresponding to the communication user can calculate its relative position with the perceptual pilot, and combine the global configuration information of the perceptual pilot transmitted in the first information, so as to obtain the perceptual pilot subset corresponding to the DMRS position.

[0085] Optionally, the second information sent by the broadcast or multicast message may be carried by a physical broadcast channel PBCH or a system information block SIB.

[0086] (2) The second information is sent through a unicast message, and the sending device obtains the position index of the perceptual pilot subset required for calculating the equivalent DMRS in the perceptual pilot according to the time-frequency resource position of the perceptual pilot and the time-frequency resource position of the DMRS of a certain receiving device (such as an OFDM user), wherein the time-frequency resource position of the DMRS is determined by the position of the time-frequency resource block occupied by the receiving device and the position index of the DMRS in the time-frequency resource block, and sends the position information of the perceptual pilot corresponding to the receiving device to the corresponding receiving device. The position information can be the position index value of the perceptual pilot subset in the perceptual pilot, or an offset value (offset) relative to the DMRS position index value of the receiving device.

[0087] For example, the position index of the DMRS in the time-frequency resource block is a relative position, and the position index of the perceptual pilot subset in the perceptual pilot is also a relative position. Since the perceptual pilot subset can span multiple OFDM frames (for example, multiple OFDM users), these two relative positions (two-dimensional coordinates) may not be the same, so there is an offset. The position index of the perceptual pilot subset in the perceptual pilot can be calculated based on an offset value relative to the DMRS position index value of the receiving device and the DMRS position index value of the receiving device.

[0088] Optionally, the second information sent by the unicast message is carried by a physical resource control (Radio Resource Control, RRC) message or downlink control information (Downlink Control Information, DCI).

[0089] In the above implementation, the perceptual pilot is configured by combining the first information and the second information, so that the receiving device can process signal data based on the perceptual pilot information indicated by the first information and the second information, thereby eliminating the interference of the perceptual pilot on the communication.

[0090] Another implementation method b:

[0091] In the case where the first information is sent through a unicast message, the configuration information of the cognitive pilot is configuration information only for the receiving device, and the configuration information of the cognitive pilot includes: information of the cognitive pilot overlapped with the DMRS.

[0092] Specifically, the sending device sends a unicast message to directly indicate the configuration information corresponding to each receiving device, such as the perceptual pilot subset. Optionally, the sending device obtains the perceptual pilot subset required for calculating the equivalent DMRS, that is, the information of the perceptual pilot overlapping with the DMRS, that is, the information of the perceptual pilot at the position where the perceptual pilot overlaps with the DMRS in the data block, such as the matrix element information of the perceptual pilot in the delayed Doppler domain or the time-frequency domain, based on the configuration information of the global form of the perceptual pilot, the time-frequency domain position of the perceptual pilot mapping, and the DMRS mapping position of a certain receiving device, and sends the information of the perceptual pilot overlapping with the DMRS to the receiving device. The receiving device directly adds the received information of the perceptual pilot overlapping with the DMRS and its own DMRS to obtain the required equivalent DMRS.

[0093] Optionally, the first information sent by the unicast message may be carried in an RRC message.

[0094] In the above implementation, the configuration information for a specific receiving device is sent through a unicast message, so that the receiving device can directly use the configuration information to process signal data, thereby eliminating the interference of the perception pilot on the communication.

[0095] Optionally, the method further comprises:

[0096] The sending device sends first indication information to the receiving device, where the first indication information is used to indicate whether interference elimination is required.

[0097] For example, in a scenario where the communication channel conditions are good, the existence of the perception pilot can be tolerated and the perception pilot can be treated as noise. At this time, there is no need to indicate the second information, and the first indication information can be sent to indicate whether interference elimination is required, which is conducive to dynamic adjustment of the working mode (or state) of the receiving device according to the channel conditions.

[0098] For example, the state of the receiving device includes: a state of processing the perceived signal as interference, or a state of processing the perceived signal as noise.

[0099] If the current state is a state where the perception signal is processed as noise, and the first indication information is received to indicate that interference elimination is required, the receiving device will update the current state to a state where the perception signal is processed as interference.

[0100] The first indication information is transmitted, for example, via 1-bit or 2-bit signaling.

[0101] Optionally, the first indication information is carried by at least one of the following:

[0102] Synchronization Signal and PBCH block (SSB), PBCH, Reference Signal, DCI, Medium Access Control Control Element (MAC CE), SIB, Scrambled Physical Downlink Control Channel (PDCCH) signaling.

[0103] In the above implementation, the working mode or state of the receiving device can be flexibly adjusted through the first indication information.

[0104] Optionally, the method further comprises:

[0105] The sending device receives second indication information sent by the receiving device, where the second indication information is used to perform indication related to configuration information of the perception pilot.

[0106] Specifically, the receiving device demodulates and decodes the received signal data according to the configuration information of the sending device. The receiving device can send necessary feedback information based on the current state and bit error rate to carry out adaptive processing, such as instructing the sending device whether to send the configuration information of the perception pilot, which can save overhead and flexibly configure information, thereby improving communication reliability.

[0107] Optionally, the second indication information is used to instruct the sending device to send configuration information of the perception pilot; or,

[0108] The second indication information is used to instruct the sending device not to send the configuration information of the perception pilot; or,

[0109] The second indication information is used to instruct the sending device to adjust the configuration information of the perception pilot.

[0110] Specifically, the receiving device receives the bit error rate upper limit E indicated by the sending device. h and bit error rate lower limit E l Determine whether the configuration needs to be adjusted. Assume that the actual bit error rate determined by the receiving device is E t . According to whether the actual bit error rate is greater than the bit error rate upper limit E h , or less than the bit error rate lower limit E l , the receiving device sends a second indication information to the sending device, which is used to feedback whether the sending device needs to send the configuration information of the perception pilot, or to instruct the sending device to adjust the configuration information of the perception pilot.

[0111] Optionally, the second indication information is carried by at least one of the following:

[0112] Synchronization signal block SSB, PBCH, reference signal, DCI, media access control element MAC CE, SIB, scrambled physical downlink control channel PDCCH signaling.

[0113] Optionally, when the second indication information is used to instruct the sending device to adjust the configuration information of the perception pilot, after the sending device receives the second indication information sent by the receiving device, the method further includes:

[0114] The power of the cognitive pilot is adjusted, and the configuration information of the cognitive pilot is updated based on the adjusted power of the cognitive pilot.

[0115] Specifically, when the bit error rate is large, the receiving device sends a second indication information to the sending device, which is used to instruct the configuration information of the perception pilot to be adjusted. The sending device adjusts the power of the perception pilot based on the second indication information, which may be to reduce the power of the perception pilot, that is, to adjust the power distribution between the pilot and the data.

[0116] For example, the above situation occurs when the total power is limited, and the sensing pilot diverts part of the power of the communication signal, resulting in poor communication channel quality (low SINR) and failure to meet demodulation requirements.

[0117] The sending device adjusts the power allocation between the pilot and the data according to the second indication information fed back by the receiving device.

[0118] Optionally, adjusting the power of the perception pilot includes:

[0119] Adjusting the power of the perceptual pilot to the power of the perceptual pilot in at least one set of preset power information of perceptual pilots and data; or,

[0120] Based on a preset adjustment step size, the power of the perception pilot is reduced.

[0121] Specifically, a group of perception pilot powers and data block powers are reconfigured from a preset table, wherein the power of the perception pilots in the group is less than the power of the perception pilots before adjustment.

[0122] Or, according to a preconfigured adjustment step size Δp, the power of the perception pilot is reduced, and the power of the data block is increased accordingly.

[0123] In the above implementation, communication reliability can be improved by adjusting the power of the sensing pilot.

[0124] Figure 8 This is a second flow chart of the method for configuring the perception pilot provided in the embodiment of the present application. Figure 8 As shown, the execution subject of this embodiment is a receiving device, and the method includes:

[0125] Step 201: A receiving device receives first information sent by a sending device, where the first information is used to indicate configuration information of a perceptual pilot included in a transmission signal; the transmission signal is obtained by adding symbols based on the perceptual pilot and target symbols in the time-frequency domain, and the target symbols include data symbols and demodulation reference signal DMRS symbols in the time-frequency domain.

[0126] Specifically, this embodiment provides a processing method of a communication receiver.

[0127] The receiving device demodulates and decodes the received signal data according to the configuration information of the perception pilot sent by the sending device.

[0128] Optionally, the method further comprises:

[0129] The receiving device sends second indication information to the sending device based on the bit error rate, where the second indication information is used to indicate configuration information related to the perception pilot.

[0130] Optionally, when the current state of the receiving device is the first state and the actual bit error rate is greater than or equal to the bit error rate upper limit, the second indication information is used to instruct the sending device to send the configuration information of the perception pilot; the first state is a state in which the perception signal is processed as noise;

[0131] When the current state of the receiving device is the second state and the actual bit error rate is less than the bit error rate lower limit, the second indication information is used to instruct the sending device not to send the configuration information of the perception pilot; the second state is a state in which the perception signal is treated as interference;

[0132] When the current state of the receiving device is the second state and the actual bit error rate is greater than or equal to the bit error rate upper limit, the second indication information is used to instruct the sending device to adjust the configuration information of the perception pilot.

[0133] Optionally, when the first indication information is used to indicate that interference elimination is required, the current state of the receiving device is a second state; the second state is a state in which the perceived signal is processed as interference;

[0134] When the first indication information is used to indicate that interference elimination is not required, the current state of the receiving device is a first state; the first state is a state in which the perceived signal is processed as noise.

[0135] Specifically, the receiving device receives the bit error rate upper limit E indicated by the sending device. h and bit error rate lower limit E l Determine whether the configuration needs to be adjusted. Assume that the actual bit error rate determined by the receiving device is E t. According to whether the actual bit error rate is greater than the bit error rate upper limit E h , or less than the bit error rate lower limit E l , the receiving device sends second indication information to the sending device to provide feedback on whether the sending device needs to send the first information.

[0136] Assume that the current state of the receiving device is the second state (r stat =1), the receiving device treats the perceived signal as interference, and the current state is the first state (r stat =0), the receiving device treats the perceived signal as noise.

[0137] When stat =0,E t >E h When the receiving device sends a second indication message to the sending device, for example, carrying i stat = 1 requires the transmission of the configuration information of the sensing pilot in order to switch to r stat =1 to perform interference elimination to improve receiver performance. Optionally, the second indication information may carry the following information: stat , r stat ]=[1,0].

[0138] When stat =1,E t <E l When the receiving device sends a second indication message to the sending device, for example, carrying i stat =0 requires that the configuration information of the sensing pilot does not need to be transmitted to save overhead. Optionally, the second indication information may carry the following information: stat , r stat ]=[0,1].

[0139] When stat =1,E t >E h When the receiving device sends a second indication message to the sending device, for example, carrying i stat =1 requires adjustment of the configuration information of the sensing pilot to ensure normal communication. Optionally, the second indication information may carry the following information: stat , r stat ]=[1,1]. The adjustment method includes reducing the perceived pilot power (ie, adjusting the power allocation between the pilot and the data).

[0140] Since the implementation of interference elimination does not affect the OFDM performance, when the total power is limited, the perception pilot diverts part of the power of the communication signal, resulting in a low SINR that cannot meet the demodulation requirements when the communication channel quality is poor. The power allocation between the pilot and the data can be adjusted, that is, the perception pilot power is reduced and the data transmission power is increased.

[0141] Optionally, in the case where the first information is sent through a broadcast message or a multicast message, the configuration information of the perceptual pilot includes at least one of the following: element information included in an expression form of the perceptual pilot in a delayed Doppler domain; element information included in an expression form of the perceptual pilot in a time-frequency domain; related information for generating a base sequence of the perceptual pilot;

[0142] The related information of the base sequence includes at least one of the following: the base sequence and the generation information of the base sequence.

[0143] Optionally, the generation information of the base sequence includes at least one of the following: information of generation parameters and generation formula;

[0144] When the base sequence is a ZC sequence, the generation parameter includes at least one of the following: a root sequence number of the base sequence, a sequence length; or

[0145] In the case where the base sequence is an M sequence, the generation parameter includes at least one of the following: an initial value of the base sequence, a truncation position, and a sequence length; the information of the generation formula includes: information of a primitive polynomial of the M sequence.

[0146] Optionally, in the case where the first information is sent via a unicast message, the configuration information of the cognitive pilot is configuration information only for the receiving device, and the configuration information of the cognitive pilot includes: information of the cognitive pilot overlapping with the DMRS.

[0147] Optionally, the method further comprises:

[0148] The receiving device receives second information sent by the sending device, where the second information is used to indicate a time-frequency domain position of the perception pilot.

[0149] Optionally, when the second information is sent via a broadcast message or a multicast message, the time-frequency domain position of the perception pilot is indicated by a relative position of the perception pilot and a reference point in the time-frequency domain resources;

[0150] or,

[0151] When the second information is sent via a unicast message, the time-frequency domain position of the perceptual pilot is indicated by the position information of the perceptual pilot overlapping with the DMRS of the receiving device; the position information of the perceptual pilot overlapping with the DMRS of the receiving device is a position index in the perceptual pilots corresponding to multiple receiving devices, or an offset value relative to the DMRS position index of the receiving device.

[0152] Optionally, when the second information is sent via a broadcast message or a multicast message, the second information is carried via a physical broadcast channel PBCH or a system message block SIB.

[0153] In the case where the second information is sent via a unicast message, the second information is carried via a physical resource control RRC message or downlink control information DCI.

[0154] Optionally, the method further comprises:

[0155] The receiving device receives first indication information sent by the sending device, where the first indication information is used to indicate whether interference elimination is required.

[0156] Optionally, the first indication information or the second indication information is carried by at least one of the following:

[0157] Synchronization signal block SSB, PBCH, reference signal, DCI, media access control element MAC CE, SIB, scrambled physical downlink control channel PDCCH signaling.

[0158] The specific implementation process and technical effects of the method of this embodiment are the same as those in the method embodiment on the sending device side. For details, please refer to the detailed introduction in the embodiment on the sending device side, which will not be repeated here.

[0159] The perceptual pilot configuration method provided in the embodiment of the present application may be executed by a perceptual pilot configuration device. In the embodiment of the present application, the perceptual pilot configuration device executing the perceptual pilot configuration method is taken as an example to illustrate the perceptual pilot configuration device provided in the embodiment of the present application.

[0160] Fig. 9 is one of the structural diagrams of the perception pilot configuration device provided in the embodiment of the present application, such as Fig. 9 As shown, the perceptual pilot configuration device includes:

[0161] The sending module 110 is used to send first information to a receiving device, where the first information is used to indicate the configuration information of the perception pilot included in the transmission signal; the transmission signal is obtained by adding the symbol of the perception pilot and the target symbol in the time-frequency domain, and the target symbol includes a data symbol and a demodulation reference signal DMRS symbol in the time-frequency domain.

[0162] Optionally, in the case where the first information is sent through a broadcast message or a multicast message, the configuration information of the perceptual pilot includes at least one of the following: element information included in an expression form of the perceptual pilot in a delayed Doppler domain; element information included in an expression form of the perceptual pilot in a time-frequency domain; related information for generating a base sequence of the perceptual pilot;

[0163] The related information of the base sequence includes at least one of the following: the base sequence and the generation information of the base sequence.

[0164] Optionally, the generation information of the base sequence includes at least one of the following: information of generation parameters and generation formula;

[0165] When the base sequence is a ZC sequence, the generation parameter includes at least one of the following: a root sequence number of the base sequence, a sequence length; or

[0166] In the case where the base sequence is an M sequence, the generation parameter includes at least one of the following: an initial value of the base sequence, a truncation position, and a sequence length; the information of the generation formula includes: information of a primitive polynomial of the M sequence.

[0167] Optionally, in the case where the first information is sent via a unicast message, the configuration information of the cognitive pilot is configuration information only for the receiving device, and the configuration information of the cognitive pilot includes: information of the cognitive pilot overlapping with the DMRS.

[0168] Optionally, the sending module 110 is further configured to:

[0169] Sending second information to a receiving device, where the second information is used to indicate a time-frequency domain position of the perception pilot.

[0170] Optionally, when the second information is sent via a broadcast message or a multicast message, the time-frequency domain position of the perception pilot is indicated by a relative position of the perception pilot and a reference point in the time-frequency domain resources;

[0171] or,

[0172] When the second information is sent via a unicast message, the time-frequency domain position of the perceptual pilot is indicated by the position information of the perceptual pilot overlapping with the DMRS of the receiving device; the position information of the perceptual pilot overlapping with the DMRS of the receiving device is a position index in the perceptual pilots corresponding to multiple receiving devices, or an offset value relative to the DMRS position index of the receiving device.

[0173] Optionally, when the second information is sent through a broadcast message or a multicast message, the second information is carried through a physical broadcast channel PBCH or a system information block SIB;

[0174] In the case where the second information is sent via a unicast message, the second information is carried via a physical resource control RRC message or downlink control information DCI.

[0175] Optionally, the sending module 110 is further configured to:

[0176] Sending first indication information to the receiving device, where the first indication information is used to indicate whether interference elimination is required.

[0177] Optionally, the device further comprises:

[0178] The receiving module is used to receive second indication information sent by the receiving device, where the second indication information is used to perform indication related to the configuration information of the perception pilot.

[0179] Optionally, the second indication information is used to instruct the sending device to send configuration information of the perception pilot; or,

[0180] The second indication information is used to instruct the sending device not to send the configuration information of the perception pilot; or,

[0181] The second indication information is used to instruct the sending device to adjust the configuration information of the perception pilot.

[0182] Optionally, when the second indication information is used to instruct the sending device to adjust the configuration information of the perception pilot, the apparatus further includes:

[0183] The processing module is used to adjust the power of the perception pilot after receiving the second indication information sent by the receiving device, and update the configuration information of the perception pilot based on the adjusted power of the perception pilot.

[0184] Optionally, the processing module is specifically configured to:

[0185] Adjusting the power of the perceptual pilot to the power of the perceptual pilot in at least one set of preset power information of perceptual pilots and data; or,

[0186] Based on a preset adjustment step size, the power of the perception pilot is reduced.

[0187] Optionally, the first indication information or the second indication information is carried by at least one of the following:

[0188] Synchronization signal block SSB, PBCH, reference signal, DCI, media access control element MAC CE, SIB, scrambled physical downlink control channel PDCCH signaling.

[0189] The device of this embodiment can be used to execute the method of any of the embodiments in the aforementioned sending device side method embodiments. Its specific implementation process and technical effects are the same as those in the sending device side method embodiments. For details, please refer to the detailed introduction in the sending device side embodiments, which will not be repeated here.

[0190] Fig.10This is a second structural diagram of the perception pilot configuration device provided in an embodiment of the present application, such as Fig.10 As shown, the perceptual pilot configuration device includes:

[0191] A receiving module is used to receive first information sent by a sending device, where the first information is used to indicate configuration information of a perceptual pilot included in a transmission signal; the transmission signal is obtained by adding a symbol of the perceptual pilot to a target symbol in the time-frequency domain, and the target symbol includes a data symbol in the time-frequency domain and a demodulation reference signal DMRS symbol.

[0192] Optionally, in the case where the first information is sent through a broadcast message or a multicast message, the configuration information of the perceptual pilot includes at least one of the following: element information included in an expression form of the perceptual pilot in a delayed Doppler domain; element information included in an expression form of the perceptual pilot in a time-frequency domain; related information for generating a base sequence of the perceptual pilot;

[0193] The related information of the base sequence includes at least one of the following: the base sequence and the generation information of the base sequence.

[0194] Optionally, the generation information of the base sequence includes at least one of the following: information of generation parameters and generation formula;

[0195] When the base sequence is a ZC sequence, the generation parameter includes at least one of the following: a root sequence number of the base sequence, a sequence length; or

[0196] In the case where the base sequence is an M sequence, the generation parameter includes at least one of the following: an initial value of the base sequence, a truncation position, and a sequence length; the information of the generation formula includes: information of a primitive polynomial of the M sequence.

[0197] Optionally, in the case where the first information is sent via a unicast message, the configuration information of the cognitive pilot is configuration information only for the receiving device, and the configuration information of the cognitive pilot includes: information of the cognitive pilot overlapping with the DMRS.

[0198] Optionally, the receiving module 210 is further configured to:

[0199] Second information sent by the sending device is received, where the second information is used to indicate a time-frequency domain position of the perception pilot.

[0200] Optionally, when the second information is sent via a broadcast message or a multicast message, the time-frequency domain position of the perception pilot is indicated by a relative position of the perception pilot and a reference point in the time-frequency domain resources;

[0201] or,

[0202] When the second information is sent via a unicast message, the time-frequency domain position of the perceptual pilot is indicated by the position information of the perceptual pilot overlapping with the DMRS of the receiving device; the position information of the perceptual pilot overlapping with the DMRS of the receiving device is a position index in the perceptual pilots corresponding to multiple receiving devices, or an offset value relative to the DMRS position index of the receiving device.

[0203] Optionally, when the second information is sent via a broadcast message or a multicast message, the second information is carried via a physical broadcast channel PBCH or a system message block SIB.

[0204] In the case where the second information is sent via a unicast message, the second information is carried via a physical resource control RRC message or downlink control information DCI.

[0205] Optionally, the receiving module 210 is further configured to:

[0206] Receive first indication information sent by the sending device, where the first indication information is used to indicate whether interference elimination is required.

[0207] Optionally, the device further comprises:

[0208] The sending module is used to send second indication information to the sending device based on the bit error rate, and the second indication information is used to indicate the configuration information related to the perception pilot.

[0209] Optionally, when the current state of the receiving device is the first state and the actual bit error rate is greater than or equal to the bit error rate upper limit, the second indication information is used to instruct the sending device to send the configuration information of the perception pilot; the first state is a state in which the perception signal is processed as noise;

[0210] When the current state of the receiving device is the second state and the actual bit error rate is less than the bit error rate lower limit, the second indication information is used to instruct the sending device not to send the configuration information of the perception pilot; the second state is a state in which the perception signal is treated as interference;

[0211] When the current state of the receiving device is the second state and the actual bit error rate is greater than or equal to the bit error rate upper limit, the second indication information is used to instruct the sending device to adjust the configuration information of the perception pilot.

[0212] Optionally, when the first indication information is used to indicate that interference elimination is required, the current state of the receiving device is a second state; the second state is a state in which the perceived signal is processed as interference;

[0213] When the first indication information is used to indicate that interference elimination is not required, the current state of the receiving device is a first state; the first state is a state in which the perceived signal is processed as noise.

[0214] Optionally, the first indication information or the second indication information is carried by at least one of the following:

[0215] Synchronization signal block SSB, PBCH, reference signal, DCI, media access control element MAC CE, SIB, scrambled physical downlink control channel PDCCH signaling.

[0216] The device of this embodiment can be used to execute the method of any of the embodiments in the aforementioned receiving device side method embodiments. Its specific implementation process and technical effects are the same as those in the receiving device side method embodiments. For details, please refer to the detailed introduction in the receiving device side embodiments, which will not be repeated here.

[0217] The sensing pilot configuration 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 an electronic device, such as an integrated circuit or a chip. 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 11 listed above, and other devices may be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

[0218] The sensing pilot configuration device provided in the embodiment of the present application can achieve Figures 3 to 8 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0219] like Fig.11 As shown, the embodiment of the present application further provides a communication device 1100, including a processor 1101 and a memory 1102, and the memory 1102 stores a program or instruction that can be run on the processor 1101. For example, when the communication device 1100 is a terminal, the program or instruction is executed by the processor 1101 to implement the various steps of the above-mentioned perceptual pilot configuration method embodiment, and can achieve the same technical effect. When the communication device 1100 is a network side device, the program or instruction is executed by the processor 1101 to implement the various steps of the above-mentioned perceptual pilot configuration method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0220] The embodiment of the present application also provides a sending device, including 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 following Figure 3The steps in the method embodiment shown. The sending device embodiment corresponds to the above sending device side method embodiment, and each implementation process and implementation mode of the above method embodiment can be applied to the sending device embodiment and can achieve the same technical effect.

[0221] The embodiment of the present application also provides a receiving device, including 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 following Figure 8 The steps of the method embodiment shown in the figure. The receiving device embodiment corresponds to the above-mentioned receiving device side method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to the receiving device embodiment and can achieve the same technical effect.

[0222] Optionally, the sending device may be a terminal or a network-side device, and the receiving device may be a terminal or a network-side device.

[0223] Specifically, Fig.12 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0224] The terminal 1200 includes but is not limited to: a radio frequency unit 1201, a network module 1202, an audio output unit 1203, an input unit 1204, a sensor 1205, a display unit 1206, a user input unit 1207, an interface unit 1208, a memory 1209 and at least some of the components of the processor 1210.

[0225] Those skilled in the art will appreciate that the terminal 1200 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 1210 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Fig.12 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal 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.

[0226] It should be understood that in the embodiment of the present application, the input unit 1204 may include a graphics processing unit (GPU) 12041 and a microphone 12042, and the graphics processing unit 12041 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 1206 may include a display panel 12061, and the display panel 12061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1207 includes a touch panel 12071 and at least one of other input devices 12072. The touch panel 12071 is also called a touch screen. The touch panel 12071 may include two parts: a touch detection device and a touch controller. Other input devices 12072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control button, a switch button, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0227] In the embodiment of the present application, after receiving downlink data from the network side device, the RF unit 1201 can transmit the data to the processor x10 for processing; in addition, the RF unit 1201 can send uplink data to the network side device. Generally, the RF unit 1201 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0228] The memory 1209 can be used to store software programs or instructions and various data. The memory 1209 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 1209 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (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 1209 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0229] The processor 1210 may include one or more processing units; optionally, the processor 1210 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 1210.

[0230] Among them, the radio frequency unit 1201 is used to send first information to a receiving device, where the first information is used to indicate the configuration information of the perception pilot included in the transmission signal; the transmission signal is obtained by adding the symbol of the perception pilot and the target symbol in the time-frequency domain, and the target symbol includes a data symbol in the time-frequency domain and a demodulation reference signal DMRS symbol.

[0231] Optionally, in the case where the first information is sent through a broadcast message or a multicast message, the configuration information of the perceptual pilot includes at least one of the following: element information included in an expression form of the perceptual pilot in a delayed Doppler domain; element information included in an expression form of the perceptual pilot in a time-frequency domain; related information for generating a base sequence of the perceptual pilot;

[0232] The related information of the base sequence includes at least one of the following: the base sequence and the generation information of the base sequence.

[0233] Optionally, the generation information of the base sequence includes at least one of the following: information of generation parameters and generation formula;

[0234] When the base sequence is a ZC sequence, the generation parameter includes at least one of the following: a root sequence number of the base sequence, a sequence length; or

[0235] In the case where the base sequence is an M sequence, the generation parameter includes at least one of the following: an initial value of the base sequence, a truncation position, and a sequence length; the information of the generation formula includes: information of a primitive polynomial of the M sequence.

[0236] Optionally, in the case where the first information is sent via a unicast message, the configuration information of the cognitive pilot is configuration information only for the receiving device, and the configuration information of the cognitive pilot includes: information of the cognitive pilot overlapping with the DMRS.

[0237] Optionally, the radio frequency unit 1201 is further configured to:

[0238] Sending second information to a receiving device, where the second information is used to indicate a time-frequency domain position of the perception pilot.

[0239] Optionally, when the second information is sent via a broadcast message or a multicast message, the time-frequency domain position of the perception pilot is indicated by a relative position of the perception pilot and a reference point in the time-frequency domain resources;

[0240] or,

[0241] When the second information is sent via a unicast message, the time-frequency domain position of the perceptual pilot is indicated by the position information of the perceptual pilot overlapping with the DMRS of the receiving device; the position information of the perceptual pilot overlapping with the DMRS of the receiving device is a position index in the perceptual pilots corresponding to multiple receiving devices, or an offset value relative to the DMRS position index of the receiving device.

[0242] Optionally, when the second information is sent through a broadcast message or a multicast message, the second information is carried through a physical broadcast channel PBCH or a system information block SIB;

[0243] In the case where the second information is sent via a unicast message, the second information is carried via a physical resource control RRC message or downlink control information DCI.

[0244] Optionally, the radio frequency unit 1201 is further configured to:

[0245] Sending first indication information to the receiving device, where the first indication information is used to indicate whether interference elimination is required.

[0246] Optionally, the radio frequency unit 1201 is further configured to:

[0247] Receive second indication information sent by the receiving device, where the second indication information is used to provide an indication related to configuration information of the perception pilot.

[0248] Optionally, the second indication information is used to instruct the sending device to send configuration information of the perception pilot; or,

[0249] The second indication information is used to instruct the sending device not to send the configuration information of the perception pilot; or,

[0250] The second indication information is used to instruct the sending device to adjust the configuration information of the perception pilot.

[0251] Optionally, when the second indication information is used to instruct the sending device to adjust the configuration information of the perceptual pilot, the processor 1210 is used to adjust the power of the perceptual pilot after receiving the second indication information sent by the receiving device, and update the configuration information of the perceptual pilot based on the adjusted power of the perceptual pilot.

[0252] Optionally, the processor 1210 is specifically configured to:

[0253] Adjusting the power of the perceptual pilot to the power of the perceptual pilot in at least one set of preset power information of perceptual pilots and data; or,

[0254] Based on a preset adjustment step size, the power of the perception pilot is reduced.

[0255] Optionally, the first indication information or the second indication information is carried by at least one of the following:

[0256] Synchronization signal block SSB, PBCH, reference signal, DCI, media access control element MAC CE, SIB, scrambled physical downlink control channel PDCCH signaling.

[0257] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the following Figure 3 or Figure 8 The relevant descriptions of the method embodiments shown in the figure achieve the same or corresponding technical effects, and will not be repeated here to avoid repetition.

[0258] Specifically, the embodiment of the present application also provides a network side device. Fig.13 As shown, the network side device 1300 includes: an antenna 131, a radio frequency device 132, a baseband device 133, a processor 134 and a memory 135. The antenna 131 is connected to the radio frequency device 132. In the uplink direction, the radio frequency device 132 receives information through the antenna 131 and sends the received information to the baseband device 133 for processing. In the downlink direction, the baseband device 133 processes the information to be sent and sends it to the radio frequency device 132. The radio frequency device 132 processes the received information and sends it out through the antenna 131.

[0259] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 133, which includes a baseband processor.

[0260] The baseband device 133 may include, for example, at least one baseband board on which a plurality of chips are arranged. Fig.13 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 135 through a bus interface to call the program in the memory 135 to execute the network device operations shown in the above method embodiment.

[0261] The network side device may further include a network interface 136, which is, for example, a Common Public Radio Interface (CPRI).

[0262] Specifically, the network side device 1300 of the embodiment of the present application further includes: instructions or programs stored in the memory 135 and executable on the processor 134, and the processor 134 calls the instructions or programs in the memory 135 to execute. Fig. 9 or Fig.10 The methods executed by the modules shown achieve the same technical effects, and therefore will not be described here in detail to avoid repetition.

[0263] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned perception pilot configuration method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0264] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0265] 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 perception pilot configuration method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0266] 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.

[0267] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium, and is executed by at least one processor to implement the various processes of the above-mentioned perception pilot configuration method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0268] An embodiment of the present application also provides a communication system, including: a sending device and a receiving device, wherein the sending device can be used to execute the steps of the perceptual pilot configuration method as described above, and the receiving device can be used to execute the steps of the perceptual pilot configuration method as described above.

[0269] 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.

[0270] 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.

[0271] 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 method for configuring a perceptual pilot, characterized in that: include: The sending device sends first information to the receiving device, where the first information is used to indicate configuration information of the perception pilot included in the transmission signal; The transmission signal is obtained by adding the symbol based on the perception pilot and the target symbol in the time-frequency domain, and the target symbol includes a data symbol and a demodulation reference signal DMRS symbol in the time-frequency domain.

2. The method for configuring a perceptual pilot according to claim 1, wherein: In the case where the first information is sent via a broadcast message or a multicast message, the configuration information of the perceptual pilot includes at least one of the following: element information included in an expression form of the perceptual pilot in a delayed Doppler domain; element information included in an expression form of the perceptual pilot in a time-frequency domain; related information for generating a base sequence of the perceptual pilot; The related information of the base sequence includes at least one of the following: the base sequence and the generation information of the base sequence.

3. The method for configuring a perceptual pilot according to claim 2, wherein: The generation information of the base sequence includes at least one of the following: information of generation parameters and generation formula; In the case where the base sequence is a ZC sequence, the generation parameter includes at least one of the following: a root sequence number of the base sequence, and a sequence length; or, In the case where the base sequence is an M sequence, the generation parameter includes at least one of the following: an initial value of the base sequence, a truncation position, and a sequence length; The information of the generation formula includes: information of the primitive polynomial of the M sequence.

4. The method for configuring a perceptual pilot according to claim 1, wherein: In the case where the first information is sent via a unicast message, the configuration information of the cognitive pilot is configuration information only for the receiving device, and the configuration information of the cognitive pilot includes: information of the cognitive pilot overlapped with the DMRS.

5. The method for configuring a perceptual pilot according to any one of claims 1 to 3, characterized in that: After the sending device sends the first information to the second device, the method further includes: The sending device sends second information to the receiving device, where the second information is used to indicate a time-frequency domain position of the perception pilot.

6. The method for configuring perceptual pilots according to claim 5, characterized in that: When the second information is sent via a broadcast message or a multicast message, the time-frequency domain position of the perception pilot is indicated by a relative position of the perception pilot and a reference point in the time-frequency domain resources; or, When the second information is sent via a unicast message, the time-frequency domain position of the perceptual pilot is indicated by the position information of the perceptual pilot overlapping with the DMRS of the receiving device; the position information of the perceptual pilot overlapping with the DMRS of the receiving device is a position index in the perceptual pilots corresponding to multiple receiving devices, or an offset value relative to the DMRS position index of the receiving device.

7. The method for configuring perceptual pilots according to claim 6, wherein: In the case where the second information is sent via a broadcast message or a multicast message, the second information is carried via a physical broadcast channel PBCH or a system information block SIB; In the case where the second information is sent via a unicast message, the second information is carried via a physical resource control RRC message or downlink control information DCI.

8. The method for configuring a perceptual pilot according to any one of claims 1 to 7, characterized in that: The method further comprises: The sending device sends first indication information to the receiving device, where the first indication information is used to indicate whether interference elimination is required.

9. The method for configuring a perceptual pilot according to any one of claims 1 to 8, characterized in that: The method further comprises: The sending device receives second indication information sent by the receiving device, where the second indication information is used to perform indication related to configuration information of the perception pilot.

10. The method for configuring perceptual pilots according to claim 9, characterized in that: The second indication information is used to instruct the sending device to send the configuration information of the perception pilot; or, The second indication information is used to instruct the sending device not to send the configuration information of the perception pilot; or, The second indication information is used to instruct the sending device to adjust the configuration information of the perception pilot.

11. The method for configuring perceptual pilots according to claim 10, characterized in that: In a case where the second indication information is used to instruct the sending device to adjust the configuration information of the perception pilot, after the sending device receives the second indication information sent by the receiving device, the method further includes: The power of the cognitive pilot is adjusted, and the configuration information of the cognitive pilot is updated based on the adjusted power of the cognitive pilot.

12. The method for configuring perceptual pilots according to claim 11, characterized in that: The adjusting the power of the perception pilot includes: Adjusting the power of the perceptual pilot to the power of the perceptual pilot in at least one set of preset power information of perceptual pilots and data; or, Based on a preset adjustment step size, the power of the perception pilot is reduced.

13. The method for configuring perceptual pilots according to claim 9, wherein: The first indication information or the second indication information is carried by at least one of the following: Synchronization signal block SSB, PBCH, reference signal, DCI, media access control element MAC CE, SIB, scrambled physical downlink control channel PDCCH signaling.

14. A method for configuring a perceptual pilot, characterized in that: include: The receiving device receives first information sent by the sending device, where the first information is used to indicate configuration information of the perception pilot included in the transmission signal; The transmission signal is obtained by adding the symbol based on the perception pilot and the target symbol in the time-frequency domain, and the target symbol includes a data symbol and a demodulation reference signal DMRS symbol in the time-frequency domain.

15. The method for configuring perceptual pilots according to claim 14, characterized in that: In the case where the first information is sent via a broadcast message or a multicast message, the configuration information of the perceptual pilot includes at least one of the following: element information included in an expression form of the perceptual pilot in a delayed Doppler domain; element information included in an expression form of the perceptual pilot in a time-frequency domain; related information for generating a base sequence of the perceptual pilot; The related information of the base sequence includes at least one of the following: the base sequence and the generation information of the base sequence.

16. The method for configuring perceptual pilots according to claim 15, characterized in that: The generation information of the base sequence includes at least one of the following: information of generation parameters and generation formula; In the case where the base sequence is a ZC sequence, the generation parameter includes at least one of the following: a root sequence number of the base sequence, and a sequence length; or, In the case where the base sequence is an M sequence, the generation parameter includes at least one of the following: an initial value of the base sequence, a truncation position, and a sequence length; The information of the generation formula includes: information of the primitive polynomial of the M sequence.

17. The method for configuring perceptual pilots according to claim 14, characterized in that: In the case where the first information is sent via a unicast message, the configuration information of the cognitive pilot is configuration information only for the receiving device, and the configuration information of the cognitive pilot includes: information of the cognitive pilot overlapped with the DMRS.

18. The method for configuring a perceptual pilot according to any one of claims 14 to 16, characterized in that: The method further comprises: The receiving device receives second information sent by the sending device, where the second information is used to indicate a time-frequency domain position of the perception pilot.

19. The method for configuring perceptual pilots according to claim 18, characterized in that: When the second information is sent via a broadcast message or a multicast message, the time-frequency domain position of the perception pilot is indicated by a relative position of the perception pilot and a reference point in the time-frequency domain resources; or, When the second information is sent via a unicast message, the time-frequency domain position of the perceptual pilot is indicated by the position information of the perceptual pilot overlapping with the DMRS of the receiving device; the position information of the perceptual pilot overlapping with the DMRS of the receiving device is a position index in the perceptual pilots corresponding to multiple receiving devices, or an offset value relative to the DMRS position index of the receiving device.

20. The method for configuring perceptual pilots according to claim 19, characterized in that: In the case where the second information is sent via a broadcast message or a multicast message, the second information is carried via a physical broadcast channel PBCH or a system information block SIB; In the case where the second information is sent via a unicast message, the second information is carried via a physical resource control RRC message or downlink control information DCI.

21. The method for configuring a perceptual pilot according to any one of claims 14 to 20, characterized in that: The method further comprises: The receiving device receives first indication information sent by the sending device, where the first indication information is used to indicate whether interference elimination is required.

22. The method for configuring a perceptual pilot according to any one of claims 14 to 21, characterized in that: The method further comprises: The receiving device sends second indication information to the sending device based on the bit error rate, where the second indication information is used to indicate configuration information related to the perception pilot.

23. The method for configuring perceptual pilots according to claim 22, characterized in that: When the current state of the receiving device is the first state and the actual bit error rate is greater than or equal to the bit error rate upper limit, the second indication information is used to instruct the sending device to send the configuration information of the perception pilot; The first state is a state in which the sensed signal is treated as noise; When the current state of the receiving device is the second state and the actual bit error rate is less than the bit error rate lower limit, the second indication information is used to instruct the sending device not to send the configuration information of the perception pilot; The second state is a state in which the sensed signal is treated as interference; When the current state of the receiving device is the second state and the actual bit error rate is greater than or equal to the bit error rate upper limit, the second indication information is used to instruct the sending device to adjust the configuration information of the perception pilot.

24. The method for configuring perceptual pilots according to claim 21, wherein: In the case where the first indication information is used to indicate that interference elimination is required, the current state of the receiving device is a second state; the second state is a state in which the sensed signal is treated as interference; When the first indication information is used to indicate that interference elimination is not required, the current state of the receiving device is a first state; the first state is a state in which the perceived signal is processed as noise.

25. The method for configuring perceptual pilots according to claim 22, wherein: The first indication information or the second indication information is carried by at least one of the following: Synchronization signal block SSB, PBCH, reference signal, DCI, media access control element MAC CE, SIB, scrambled physical downlink control channel PDCCH signaling.

26. A perception pilot configuration device, characterized in that: include: A sending module, configured to send first information to a receiving device, where the first information is used to indicate configuration information of a perception pilot included in a transmission signal; The transmission signal is obtained by adding the symbol based on the perception pilot and the target symbol in the time-frequency domain, and the target symbol includes a data symbol and a demodulation reference signal DMRS symbol in the time-frequency domain.

27. A perceptual pilot configuration device, characterized in that: A receiving module is used to receive first information sent by a sending device, where the first information is used to indicate configuration information of a perceptual pilot included in a transmission signal; the transmission signal is obtained by adding a symbol of the perceptual pilot to a target symbol in the time-frequency domain, and the target symbol includes a data symbol in the time-frequency domain and a demodulation reference signal DMRS symbol.

28. A sending device, characterized in that: The method comprises 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 perceptual pilot configuration method according to any one of claims 1 to 13 are implemented.

29. A receiving device, characterized in that: The method comprises 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 perceptual pilot configuration method according to any one of claims 14 to 25 are implemented.

30. A readable storage medium, characterized in that: The readable storage medium stores a program or an instruction, and when the program or the instruction is executed by the processor, the method for configuring the perceptual pilot according to any one of claims 1 to 13 is implemented, or the steps of the method for configuring the perceptual pilot according to any one of claims 14 to 25 are implemented.

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