Sensing pilot configuration method, and device

Abstract

The present application belongs to the technical field of communications. Disclosed are a sensing pilot configuration method, and a device. The sensing pilot configuration method in the embodiments of the present application comprises: a sending device sending first information to a receiving device, wherein the first information is used for indicating configuration information of a sensing pilot comprised in a transmission signal, the transmission signal is obtained by adding a symbol based on the sensing pilot to a target symbol in a time-frequency domain, and the target symbol comprises a data symbol in the time-frequency domain and a demodulation reference signal (DMRS) symbol.

Description

Perception pilot configuration method and device

[0001] Cross-references

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on June 26, 2023, with application number 202310759420.7 and invention name “Perception Pilot Configuration Method and Device”. The entire contents of the application are incorporated by reference into this application. Technical Field

[0003] The present application belongs to the field of communication technology, and specifically relates to a method and device for configuring a perception pilot. Background Art

[0004] Figure 1 shows a block diagram of a cross-transformation domain interawareness system. On the transmitting side, the pilot defined in the delayed Doppler domain is transformed into 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. It is then 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 descrambled (descrambling is optional) and transformed to the delayed Doppler domain 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 results, 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 a time-frequency domain resource of size M×N.

[0005] 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 to improve communication reliability is a problem that those skilled in the art need to solve.

[0006] Summary of the Invention

[0007] The embodiments of the present application provide a method and device for configuring a perceptual pilot, which can solve the problem of how to ensure that a transmitting side device and a receiving side device have consistent understanding of relevant information of the perceptual pilot.

[0008] In a first aspect, a method for configuring a perceptual pilot is provided, which is performed by a transmitting device. The method includes: the transmitting device sends first information to a receiving device, where the first information is used to indicate configuration information of the 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, where the target symbol includes a data symbol and a demodulation reference signal (DMRS) symbol in the time-frequency domain.

[0009] In a second aspect, a method for configuring a perceptual pilot is provided, which is performed by a receiving device. The method includes: the receiving device receives first information sent by a sending device, where the first information is used to indicate configuration information of the 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.

[0010] In a third aspect, a perceptual pilot configuration device is provided, including: a sending module for sending first information to a receiving device, wherein the first information is used to indicate configuration information of the 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.

[0011] In a fourth aspect, a perceptual pilot configuration device is provided, including: a receiving module for receiving first information sent by a sending device, wherein the first information is used to indicate the configuration information of the perceptual pilot included in the transmission signal; the transmission signal is obtained by adding the symbol of the perceptual 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.

[0012] 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 run 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.

[0013] In the 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, wherein 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.

[0014] 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.

[0015] In the 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, and 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 data symbol in the time-frequency domain, and the target symbol includes the data symbol in the time-frequency domain and the demodulation reference signal DMRS symbol.

[0016] In the ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0017] 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.

[0018] In the eleventh aspect, a chip is provided, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0019] In the twelfth aspect, a computer program / program product is provided, which is stored in a storage medium and 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.

[0020] In an embodiment of the present application, a transmitting 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, where the target symbol includes a data symbol and a demodulation reference signal (DMRS) symbol in the time-frequency domain; that is, the transmitting 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 transmitting 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

[0021] FIG1 is a schematic diagram of an ISAC system.

[0022] FIG2 is a schematic diagram of the architecture of a wireless communication system provided in an embodiment of the present application.

[0023] FIG3 is a flowchart of a method for configuring a perceptual pilot according to an embodiment of the present application.

[0024] FIG4 is one of the principle diagrams of the perception pilot configuration method provided in an embodiment of the present application.

[0025] FIG5 is a second schematic diagram of the principles of the perception pilot configuration method provided in an embodiment of the present application.

[0026] FIG6 is a schematic diagram of one of the simulation results of the perceptual pilot configuration method provided in an embodiment of the present application.

[0027] FIG7 is a second schematic diagram of simulation results of the perceptual pilot configuration method provided in an embodiment of the present application.

[0028] FIG8 is a second flow chart of the perception pilot configuration method provided in an embodiment of the present application.

[0029] FIG9 is one of the structural diagrams of the perception pilot configuration device provided in an embodiment of the present application.

[0030] FIG10 is a second structural diagram of the perception pilot configuration device provided in an embodiment of the present application.

[0031] FIG11 is a schematic structural diagram of a communication device provided in an embodiment of the present application.

[0032] FIG12 is a schematic structural diagram of a terminal according to an embodiment of the present application.

[0033] FIG13 is a schematic structural diagram of a network-side device according to an embodiment of the present application. DETAILED DESCRIPTION

[0034] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0035] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0036] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0037] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and the NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as the 6th generation (6G) system. thGeneration, 6G) communication system.

[0038] FIG1 is a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device (Wearable Device), an aircraft (Flight Vehicle), a vehicle-mounted device (VUE), a ship-mounted device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), an ATM, or a self-service machine, or other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, 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 called 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 (WLAN) access point (AS) or a wireless fidelity (WiFi) node, etc.Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B (home evolved Node B), 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 vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0039] The core network equipment may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (MME), access mobility management function (AMF), session management function (SMF), user plane function (UPF), policy control function (PCF), policy and charging rules function unit (PCRF), edge application service discovery function (EASDF), unified data management (UDM), unified data repository (UDR), home user server (HSS), centralized network configuration (CNC), network storage function (NRF), network exposure function (NEF), local NEF (L-NEF), binding support function (BSF), application function ( 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.

[0040] First, the application scenarios involved in the embodiments of the present application are introduced.

[0041] The solution of the embodiment of the present application can be applied to an Integrated Sensing And Communication (ISAC) system. The ISAC system integrates the dual functions of communication and perception, and realizes hardware sharing, spectrum sharing, and protocol intercommunication between communication and perception signals, thereby realizing an integrated design of communication and perception functions.

[0042] The biggest challenge facing ISAC technology is the coordinated operation of communication and perception. The function of a communication system is to transmit information, so the optimization goal is to approximate the Shannon channel capacity, as described in information theory. The function of a perception system is to detect targets. For example, in a typical radar system, the optimization goal is to obtain the optimal lower bound on the variance of the target parameter estimates (range, velocity, Doppler, etc.), which is the Cramér-Rao bound on the ambiguity function.

[0043] The cross-transform domain ISAC system shown in FIG1 has the following advantages.

[0044] 1) The pilot block in the delay-Doppler domain has the full diversity characteristics of the time-frequency domain, which can perform more accurate perception detection.

[0045] 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 existing protocols.

[0046] 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.

[0047] 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.

[0048] 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 reception and processing mechanism is designed to address the problem of interference of perception signals on communication signals, and corresponding signaling content and signaling interaction processes are defined, thereby ensuring the communication function in the proposed synaesthesia system.

[0049] 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).

[0050] The following describes in detail the perceptual pilot configuration method provided in the embodiments of the present application through some embodiments and their application scenarios in conjunction with the accompanying drawings.

[0051] Please refer to Figure 3. An embodiment of the present application provides a method for configuring a perception pilot. The execution subject of this embodiment is a sending device, and the method includes the following steps.

[0052] Step 101: A transmitting 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, where the target symbols include data symbols and demodulation reference signal (DMRS) symbols in the time-frequency domain.

[0053] In some embodiments, the transmission signal between the transmitting device and the receiving device is obtained by adding the symbols of the perceptual pilot in the time-frequency domain to the target symbols in the time-frequency domain. As shown in FIG4 , the pilot block size is N P ×M P ,N P ≤N,M P ≤M, mapped to a delay-Doppler domain resource of size N×M. The sensing pilots are transformed using the Inverse Symplectic Finite Fourier Transform (ISFFT) (i.e., transformed to the time-frequency domain) and then superimposed with the target symbols, which include modulated data symbols (such as OFDM modulation) and a demodulation reference signal (DMRS).

[0054] In Figure 4, pilot symbols are superimposed on data symbols and can be configured across data blocks (such as OFDM subbands / time slots, etc.). As shown in Figure 5, for example, DMRS symbols are orthogonal to data symbol resources.

[0055] Alternatively, OFDM communication systems typically use comb-mapped DMRS for channel estimation, and the receiver uses the estimated channel for channel equalization. Since the channel acts as a multiplication on the signal in the time-frequency domain, a simple matrix dot division can be used: dividing the transmitted DMRS by the received DMRS. The resulting quotient is the desired channel matrix.

[0056] In this embodiment of the present application, the perceptual pilots 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 perceptual pilots at the corresponding positions, that is, the equivalent DMRS used for channel estimation, which is the sum of the DMRS embedded in the OFDM data (below) and the perceptual pilot subset at the corresponding position in the perceptual pilot (above) in Figure 5.

[0057] After obtaining the equivalent pilot, conventional channel estimation methods can be used to obtain an estimated value of the time-frequency domain channel matrix.

[0058] Using the estimated channel matrix and the configuration information of the sensing pilots (i.e., prior knowledge), the interference of the sensing pilots on the data can be calculated in the time-frequency domain. Optionally, this interference can be removed before channel equalization.

[0059] The above method can achieve channel estimation and demodulation results that are substantially the same as those without the introduction of the sensing pilot, as shown in FIG6 and FIG7.

[0060] 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.

[0061] In the method of this embodiment, a transmitting 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, where the target symbol includes a data symbol and a demodulation reference signal (DMRS) symbol in the time-frequency domain. That is, the transmitting 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. This ensures that the transmitting device and the receiving device have a consistent understanding of the configuration information of the perceptual pilot, facilitates signal reception processing by the receiving device, and improves communication reliability.

[0062] Optionally, the first information may be sent via broadcast, multicast or unicast.

[0063] An implementation method a: When 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; and related information for generating a base sequence of the perceptual pilot.

[0064] The relevant information of the base sequence includes at least one of the following: the base sequence and the generation information of the base sequence.

[0065] In some implementations, based on the role of the perceptual pilot in symbol detection and channel estimation, the receiving device generally needs to know at least one of the following information: 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; and information related to the base sequence used to generate the perceptual pilot.

[0066] The elements included in the expression form of the perceptual pilot in the delay Doppler domain can be represented by a delay Doppler domain matrix form S, that is, the elements included in the expression form of the perceptual pilot in the delay Doppler domain are the matrix elements of S in the delay Doppler domain.

[0067] 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 .

[0068] 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.

[0069] 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.

[0070] Optionally, the generation information of the base sequence includes at least one of the following: information of generation parameters and generation formula.

[0071] 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.

[0072] Or, when the base sequence is an M sequence, the generation parameters include at least one of the following: an initial value of the base sequence, a truncation position, and a sequence length; and the information of the generation formula includes information of a primitive polynomial of the M sequence.

[0073] 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).

[0074] In the above implementation, global configuration information of the perception pilots is sent via broadcast or multicast messages, which can save overhead, achieve interaction of prior information of the perception pilots, and improve performance of communication receivers.

[0075] After step 101, the following step may be further performed: 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.

[0076] Among them, since the first information sent through the broadcast message or multicast message only includes global information of the perception pilot, that is, it includes 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.

[0077] Among them, the time-frequency domain position of the perceptual pilot corresponding to the receiving device, that is, the resource position of the perceptual pilot mapped in the time-frequency domain, for example, the absolute position of the perceptual pilot corresponding to the receiving device in the upper resource block in Figure 5, or the relative position of the perceptual pilot corresponding to the receiving device and the data resource block.

[0078] Optionally, the second information may be sent via a broadcast message, a multicast message, or a unicast message.

[0079] 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 the relative position of the perception pilot and a reference point in the time-frequency domain resources.

[0080] Or, in the case where the second information is sent through 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.

[0081] In some embodiments, (1) second information is sent via a broadcast message or a multicast message to determine a known reference point (e.g., similar to reference point Point A in NR) in the time-frequency domain resources, indicating the relative position of the perceptual pilots with respect to the known reference point. Because this reference point is specific to a communication user, a receiving device corresponding to the communication user can calculate its relative position with respect to the perceptual pilots and, in combination with the global configuration information of the perceptual pilots conveyed in the first information, obtain a subset of perceptual pilots corresponding to the DMRS positions.

[0082] Optionally, the second information sent by the broadcast or multicast message may be carried by a PBCH or a SIB.

[0083] (2) The second information is sent via a unicast message. The sending device obtains the position index of the perceptual pilot subset required for calculating the equivalent DMRS in the perceptual pilot based on the time-frequency resource position of the perceptual pilot and the time-frequency resource position of the DMRS of a receiving device (e.g., an OFDM user), where 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 relative to the DMRS position index value of the receiving device.

[0084] 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.

[0085] Optionally, the second information sent by the unicast message is carried by a Radio Resource Control (RRC) message or downlink control information (DCI).

[0086] In the above embodiment, the perception pilot is configured by combining the first information and the second information, so that the receiving device can process signal data based on the information of the perception pilot indicated by the first information and the second information, thereby eliminating the interference of the perception pilot on communication.

[0087] Another implementation manner b: when 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.

[0088] In some implementations, a transmitting device sends a unicast message directly indicating configuration information corresponding to each receiving device, such as a perceptual pilot subset. Optionally, the transmitting device obtains the perceptual pilot subset required for calculating an equivalent DMRS based on the global perceptual pilot configuration information, the time-frequency domain location of the perceptual pilot mapping, and the DMRS mapping location of a particular receiving device. The transmitting device then obtains information about the perceptual pilots overlapping with the DMRS, i.e., information about the perceptual pilots at locations where the perceptual pilots overlap with the DMRS in a data block, such as matrix element information about the perceptual pilots in the delay-Doppler domain or the time-frequency domain, and sends this perceptual pilot information overlapping with the DMRS to the receiving device. The receiving device then directly adds the received perceptual pilot information overlapping with the DMRS to its own DMRS to obtain the required equivalent DMRS.

[0089] Optionally, the first information sent by the unicast message can be carried in an RRC message.

[0090] In the above implementation, configuration information for a specific receiving device is sent via a unicast message, so that the receiving device can directly use the configuration information to process signal data, thereby eliminating interference of the perception pilot on communication.

[0091] Optionally, the method further includes: the sending device sending first indication information to the receiving device, where the first indication information is used to indicate whether interference elimination is required.

[0092] 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. 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.

[0093] 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.

[0094] If the current state is a state of processing the perception signal as noise, and the first indication information is received to indicate that interference cancellation is required, the receiving device will update the current state to a state of processing the perception signal as interference.

[0095] The first indication information is transmitted, for example, through 1-bit or 2-bit signaling.

[0096] Optionally, the first indication information is carried by at least one of the following: synchronization signal block (Synchronization Signal and PBCH block, SSB), PBCH, reference signal, DCI, medium access control element (Medium Access Control Control Element, MAC CE), SIB, encrypted physical downlink control channel (Physical Downlink Control Channel, PDCCH) signaling.

[0097] In the above implementation, the working mode or state of the receiving device can be flexibly adjusted through the first indication information.

[0098] Optionally, the method further includes: the sending device receives second indication information sent by the receiving device, where the second indication information is used to provide indication related to configuration information of the perception pilot.

[0099] In some implementations, the receiving device demodulates and decodes received signal data based on the configuration information of the transmitting device. Based on the current state and bit error rate, the receiving device can send necessary feedback information to perform adaptive processing, such as instructing the transmitting device on whether to send configuration information for sensing pilots. This can reduce overhead and provide flexible configuration information, thereby improving communication reliability.

[0100] Optionally, the second indication information is used to instruct the sending device to send configuration information of the perception pilot.

[0101] Alternatively, the second indication information is used to instruct the sending device not to send the configuration information of the perception pilot.

[0102] Alternatively, the second indication information is used to instruct the sending device to adjust the configuration information of the perception pilot.

[0103] In some embodiments, the receiving device receives the bit error rate upper limit E indicated by the sending device. h and the lower limit of bit error rate 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 lower limit of bit error rate 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.

[0104] Optionally, the second indication information is carried by at least one of the following: SSB, PBCH, reference signal, DCI, MAC CE, SIB, and scrambled PDCCH signaling.

[0105] Optionally, when the second indication information is used to instruct the sending device to adjust the configuration information of the perceptual pilot, after the sending device receives the second indication information sent by the receiving device, it also includes: adjusting the power of the perceptual pilot, and updating the configuration information of the perceptual pilot based on the adjusted power of the perceptual pilot.

[0106] In some embodiments, when the bit error rate is large, the receiving device sends a second indication message to the sending device, indicating that the configuration information of the perception pilot should be adjusted. The sending device adjusts the power of the perception pilot based on the second indication message, which may be to reduce the power of the perception pilot, that is, to adjust the power distribution between the pilot and the data.

[0107] For example, the above situation occurs when the total power is limited. The sensing pilot diverts part of the power of the communication signal, resulting in poor communication channel quality (such as low SINR), which cannot meet the demodulation requirements.

[0108] The transmitting device adjusts the power distribution between the pilot and the data according to the second indication information fed back by the receiving device.

[0109] Optionally, adjusting the power of the perceptual pilot includes: adjusting the power of the perceptual pilot to the power of the perceptual pilot in power information of at least one preset set of perceptual pilots and data; or reducing the power of the perceptual pilot based on a preset adjustment step size.

[0110] In some implementations, the power of a group of sensing pilots and the power of the data blocks are reconfigured from a preset table, wherein the power of the sensing pilots in the group is less than the power of the sensing pilots before adjustment.

[0111] Alternatively, according to a preconfigured adjustment step size Δp, the power of the sensing pilot is reduced, and the power of the data block is increased accordingly.

[0112] In the above implementation, communication reliability can be improved by adjusting the power of the sensing pilot.

[0113] FIG8 is a second flow chart of a method for configuring a perception pilot according to an embodiment of the present application. As shown in FIG8 , the embodiment is performed by a receiving device, and the method includes:

[0114] Step 201: A receiving device receives first information sent by a transmitting 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, where the target symbols include data symbols and demodulation reference signal (DMRS) symbols in the time-frequency domain.

[0115] Specifically, this embodiment provides a processing method of a communication receiver.

[0116] The receiving device demodulates and decodes the received signal data according to the configuration information of the perception pilot sent by the sending device.

[0117] Optionally, the method further includes: the receiving device sending second indication information to the sending device based on a bit error rate, where the second indication information is used to provide indication related to configuration information of the perception pilot.

[0118] 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; 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 processed as interference;

[0119] 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.

[0120] Optionally, when the first indication information is used to indicate that interference elimination is required, the current state of the receiving device is the second state; the second state is a state in which the perception 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 the first state; the first state is a state in which the perception signal is treated as noise.

[0121] In some embodiments, the receiving device receives the bit error rate upper limit E indicated by the sending device. h and the lower limit of bit error rate 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 lower limit of bit error rate 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.

[0122] 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 processes the perceived signal as noise.

[0123] When r 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: [i stat ,r stat ]=[1,0].

[0124] When r 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 perception pilot does not need to be transmitted to save overhead. Optionally, the second indication information can carry the following information: [i stat ,r stat]=[0,1].

[0125] When r 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: [i stat ,r stat ]=[1,1]. The adjustment method includes reducing the sensing pilot power (ie, adjusting the power distribution between the pilot and data).

[0126] Since interference cancellation does not affect OFDM performance, when total power is limited, the sensing pilot diverts part of the power of the communication signal, resulting in a low SINR that cannot meet demodulation requirements when the communication channel quality is poor. The power allocation between the pilot and data can be adjusted, that is, the sensing pilot power is reduced and the data transmission power is increased.

[0127] Optionally, when 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 contained in the expression form of the perceptual pilot in the delayed Doppler domain; element information contained in the expression form of the perceptual pilot in the time-frequency domain; relevant information for generating a base sequence for the perceptual pilot; the relevant information of the base sequence includes at least one of the following: base sequence, base sequence generation information.

[0128] Optionally, the generation information of the base sequence includes at least one of the following: information on generation parameters and a generation formula; when the base sequence is a ZC sequence, the generation parameters include at least one of the following: a root sequence number of the base sequence and a sequence length; or, when the base sequence is an M sequence, the generation parameters include at least one of the following: an initial value of the base sequence, a truncation position, and a sequence length; the information on the generation formula includes information on a primitive polynomial of the M sequence.

[0129] Optionally, when 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.

[0130] Optionally, the method further includes: the receiving device receiving second information sent by the sending device, where the second information is used to indicate a time-frequency domain position of the perception pilot.

[0131] Optionally, when the second information is sent via a broadcast message or a multicast message, the time-frequency domain position of the perceptual pilot is indicated by the relative position of the perceptual 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.

[0132] 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 information block SIB.

[0133] In the case where the second information is sent through a unicast message, the second information is carried through a physical resource control RRC message or downlink control information DCI.

[0134] Optionally, the method further includes: the receiving device receiving first indication information sent by the sending device, where the first indication information is used to indicate whether interference elimination is required.

[0135] Optionally, 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, and scrambled physical downlink control channel PDCCH signaling.

[0136] The specific implementation process and technical effects of the method of this embodiment are the same as those in the embodiment of the method on the sending device side. For details, please refer to the detailed introduction in the embodiment on the sending device side, and no further details will be given here.

[0137] The cognitive pilot configuration method provided in the embodiment of the present application may be executed by a cognitive pilot configuration device. In the embodiment of the present application, the cognitive pilot configuration device performing the cognitive pilot configuration method is taken as an example to illustrate the cognitive pilot configuration device provided in the embodiment of the present application.

[0138] Figure 9 is one of the structural schematic diagrams of the perceptual pilot configuration device provided in an embodiment of the present application. As shown in Figure 9, the perceptual pilot configuration device includes: a sending module 110, configured to send first information to a receiving device, where the first information is used to indicate the configuration information of the perceptual pilot included in the transmission signal; the transmission signal is obtained by adding the symbols of the perceptual pilot and the target symbols in the time-frequency domain, where the target symbols include data symbols and demodulation reference signal DMRS symbols in the time-frequency domain.

[0139] Optionally, when 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 contained in the expression form of the perceptual pilot in the delayed Doppler domain; element information contained in the expression form of the perceptual pilot in the time-frequency domain; relevant information for generating a base sequence for the perceptual pilot; the relevant information of the base sequence includes at least one of the following: base sequence, base sequence generation information.

[0140] Optionally, the generation information of the base sequence includes at least one of the following: information on generation parameters and a generation formula; when the base sequence is a ZC sequence, the generation parameters include at least one of the following: a root sequence number of the base sequence and a sequence length; or, when the base sequence is an M sequence, the generation parameters include at least one of the following: an initial value of the base sequence, a truncation position, and a sequence length; the information on the generation formula includes information on a primitive polynomial of the M sequence.

[0141] Optionally, when 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.

[0142] Optionally, the sending module 110 is further configured to: send second information to a receiving device, where the second information is used to indicate a time-frequency domain position of the perception pilot.

[0143] Optionally, when the second information is sent via a broadcast message or a multicast message, the time-frequency domain position of the perceptual pilot is indicated by the relative position of the perceptual 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.

[0144] 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; when 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.

[0145] Optionally, the sending module 110 is further used to: send first indication information to the receiving device, where the first indication information is used to indicate whether interference cancellation is required.

[0146] Optionally, the apparatus further includes: a receiving module, configured to receive second indication information sent by the receiving device, where the second indication information is used to provide indication related to configuration information of the perception pilot.

[0147] Optionally, 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.

[0148] Optionally, when the second indication information is used to instruct the sending device to adjust the configuration information of the perception pilot, the device also includes: a processing module, 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.

[0149] Optionally, the processing module is specifically configured to: adjust the power of the perception pilot to the power of the perception pilot in at least one preset set of power information of the perception pilot and data; or reduce the power of the perception pilot based on a preset adjustment step size.

[0150] Optionally, 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, and scrambled physical downlink control channel PDCCH signaling.

[0151] The device of this embodiment can be used to execute the method of any of the aforementioned embodiments of the sending device side method. Its specific implementation process and technical effects are the same as those in the sending device side method embodiment. For details, please refer to the detailed description in the sending device side embodiment, which will not be repeated here.

[0152] Figure 10 is a second structural schematic diagram of the perceptual pilot configuration device provided in an embodiment of the present application. As shown in Figure 10, the perceptual pilot configuration device includes: a receiving module, used to receive first information sent by a sending device, where the first information is used to indicate the configuration information of the perceptual pilot included in the transmission signal; the transmission signal is obtained by adding the symbol of the perceptual 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.

[0153] Optionally, when 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 contained in the expression form of the perceptual pilot in the delayed Doppler domain; element information contained in the expression form of the perceptual pilot in the time-frequency domain; relevant information for generating a base sequence for the perceptual pilot; the relevant information of the base sequence includes at least one of the following: base sequence, base sequence generation information.

[0154] Optionally, the generation information of the base sequence includes at least one of the following: information on generation parameters and a generation formula; when the base sequence is a ZC sequence, the generation parameters include at least one of the following: a root sequence number of the base sequence and a sequence length; or, when the base sequence is an M sequence, the generation parameters include at least one of the following: an initial value of the base sequence, a truncation position, and a sequence length; the information on the generation formula includes information on a primitive polynomial of the M sequence.

[0155] Optionally, when 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.

[0156] Optionally, the receiving module 210 is further configured to: receive second information sent by the sending device, where the second information is used to indicate a time-frequency domain position of the perception pilot.

[0157] Optionally, when the second information is sent via a broadcast message or a multicast message, the time-frequency domain position of the perceptual pilot is indicated by the relative position of the perceptual 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.

[0158] 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 information block SIB.

[0159] In the case where the second information is sent through a unicast message, the second information is carried through a physical resource control RRC message or downlink control information DCI.

[0160] Optionally, the receiving module 210 is further used to: receive first indication information sent by the sending device, where the first indication information is used to indicate whether interference elimination is required.

[0161] Optionally, the apparatus further includes: a sending module, configured to send second indication information to the sending device based on a bit error rate, wherein the second indication information is used to provide indication related to configuration information of the perception pilot.

[0162] 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; 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 processed 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.

[0163] Optionally, when the first indication information is used to indicate that interference elimination is required, the current state of the receiving device is the second state; the second state is a state in which the perception 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 the first state; the first state is a state in which the perception signal is treated as noise.

[0164] Optionally, 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, and scrambled physical downlink control channel PDCCH signaling.

[0165] The device of this embodiment can be used to execute the method of any of the aforementioned embodiments of the receiving device side method. Its specific implementation process and technical effects are the same as those in the embodiment of the receiving device side method. For details, please refer to the detailed description in the embodiment of the receiving device side, which will not be repeated here.

[0166] The perception pilot configuration device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component of the electronic device, such as an integrated circuit or chip. The electronic device can be a terminal or other device other than a terminal. For example, the terminal can include but is not limited to the types of terminal 11 listed above. Other devices can include servers, network attached storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0167] The perception pilot configuration device provided in the embodiment of the present application can implement the various processes implemented in the method embodiments of Figures 3 to 8 and achieve the same technical effects. To avoid repetition, it will not be repeated here.

[0168] As shown in Figure 11, an embodiment of the present application further provides a communication device 1100, including a processor 1101 and a memory 1102. The memory 1102 stores a program or instruction that can be executed on the processor 1101. For example, when the communication device 1100 is a terminal, the program or instruction, when executed by the processor 1101, implements the various steps of the above-mentioned embodiment of the perception pilot configuration method and can achieve the same technical effect. When the communication device 1100 is a network-side device, the program or instruction, when executed by the processor 1101, implements the various steps of the above-mentioned embodiment of the perception pilot configuration method and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0169] 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 configured to execute a program or instruction to implement the steps in the method embodiment shown in FIG3 . This sending device embodiment corresponds to the above-mentioned sending device-side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment are applicable to this sending device embodiment and can achieve the same technical effects.

[0170] 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 configured to execute a program or instruction to implement the steps of the method embodiment shown in FIG8 . This receiving device embodiment corresponds to the above-described receiving device-side method embodiment, and each implementation process and implementation method of the above-described method embodiment is applicable to this receiving device embodiment and can achieve the same technical effects.

[0171] 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.

[0172] Specifically, FIG12 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.

[0173] 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.

[0174] Those skilled in the art will appreciate that the terminal 1200 may also include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 1210 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The terminal structure shown in FIG12 does not limit the terminal. The terminal may include more or fewer components than shown, or may combine certain components, or have different component arrangements, which will not be described in detail here.

[0175] It should be understood that in an 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 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 volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0176] In the embodiment of the present application, after receiving downlink data from a network-side device, the RF unit 1201 may transmit the data to the processor x10 for processing. Furthermore, the RF unit 1201 may send uplink data to the network-side device. Typically, the RF unit 1201 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0177] 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, applications or instructions required for at least one function (such as a sound playback function, an image playback function, 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 random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM). The memory 1209 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0178] Processor 1210 may include one or more processing units. Optionally, processor 1210 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 1210.

[0179] Among them, the radio frequency unit 1201 is used to send first information to the 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 the data symbol and the demodulation reference signal DMRS symbol in the time-frequency domain.

[0180] Optionally, when 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 contained in the expression form of the perceptual pilot in the delayed Doppler domain; element information contained in the expression form of the perceptual pilot in the time-frequency domain; relevant information for generating a base sequence for the perceptual pilot; the relevant information of the base sequence includes at least one of the following: base sequence, base sequence generation information.

[0181] Optionally, the generation information of the base sequence includes at least one of the following: information on generation parameters and a generation formula; when the base sequence is a ZC sequence, the generation parameters include at least one of the following: a root sequence number of the base sequence and a sequence length; or, when the base sequence is an M sequence, the generation parameters include at least one of the following: an initial value of the base sequence, a truncation position, and a sequence length; the information on the generation formula includes information on a primitive polynomial of the M sequence.

[0182] Optionally, when 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.

[0183] Optionally, the radio frequency unit 1201 is further configured to: send second information to a receiving device, where the second information is used to indicate a time-frequency domain position of the perception pilot.

[0184] Optionally, when the second information is sent via a broadcast message or a multicast message, the time-frequency domain position of the perceptual pilot is indicated by the relative position of the perceptual 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.

[0185] 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; when 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.

[0186] Optionally, the radio frequency unit 1201 is further used to: send first indication information to the receiving device, where the first indication information is used to indicate whether interference elimination is required.

[0187] Optionally, the radio frequency unit 1201 is further used to: receive second indication information sent by the receiving device, where the second indication information is used to provide indication related to configuration information of the perception pilot.

[0188] Optionally, 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.

[0189] 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.

[0190] Optionally, the processor 1210 is specifically configured to: adjust the power of the cognitive pilot to the power of the cognitive pilot in the preset power information of at least one set of cognitive pilots and data; or reduce the power of the cognitive pilot based on a preset adjustment step size.

[0191] Optionally, 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, and scrambled physical downlink control channel PDCCH signaling.

[0192] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment shown in Figure 3 or Figure 8, and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0193] Specifically, embodiments of the present application also provide a network-side device. As shown in Figure 13, network-side device 1300 includes an antenna 131, a radio frequency device 132, a baseband device 133, a processor 134, and a memory 135. Antenna 131 is connected to radio frequency device 132. In the uplink direction, radio frequency device 132 receives information via antenna 131 and sends the received information to baseband device 133 for processing. In the downlink direction, baseband device 133 processes the information to be transmitted and sends it to radio frequency device 132. Radio frequency device 132 processes the received information and then sends it through antenna 131.

[0194] 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.

[0195] The baseband device 133 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 13, 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.

[0196] The network side device may further include a network interface 136 , which is, for example, a Common Public Radio Interface (CPRI).

[0197] Specifically, the network side device 1300 of the embodiment of the present application also includes: instructions or programs stored in the memory 135 and executable on the processor 134. The processor 134 calls the instructions or programs in the memory 135 to execute the methods executed by the modules shown in FIG9 or FIG10 and achieve the same technical effect. To avoid repetition, they will not be elaborated here.

[0198] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned perception pilot configuration method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0199] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0200] 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.

[0201] 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.

[0202] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned perception pilot configuration method embodiment, and can achieve the same technical effect. To avoid repetition, it is not repeated here.

[0203] An embodiment of the present application further 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 above-mentioned perceptual pilot configuration method, and the receiving device can be used to execute the steps of the above-mentioned perceptual pilot configuration method.

[0204] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0205] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0206] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A method for configuring a perceptual pilot, wherein: 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, wherein: 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, wherein: 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 a perceptual pilot 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, wherein: 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, wherein: 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, wherein: 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 a perceptual pilot according to claim 10, wherein: 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, wherein: 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, wherein: 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, 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.

16. The method for configuring cognitive pilots according to claim 15, 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.

17. The method for configuring perceptual pilots according to claim 14, 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.

18. The method for configuring a perceptual pilot according to any one of claims 14 to 16, wherein: 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, wherein: 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, 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.

21. The method for configuring a perceptual pilot according to any one of claims 14 to 20, wherein: 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, wherein: 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, wherein: 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 The state is one in which the perceived 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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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