WO2024078378A1 - 多普勒测量方法、装置及通信设备 - Google Patents

多普勒测量方法、装置及通信设备 Download PDF

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Publication number
WO2024078378A1
WO2024078378A1 PCT/CN2023/123168 CN2023123168W WO2024078378A1 WO 2024078378 A1 WO2024078378 A1 WO 2024078378A1 CN 2023123168 W CN2023123168 W CN 2023123168W WO 2024078378 A1 WO2024078378 A1 WO 2024078378A1
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signal
frequency
time domain
indication
information
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PCT/CN2023/123168
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English (en)
French (fr)
Inventor
姚健
秦飞
刘昊
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维沃移动通信有限公司
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Publication of WO2024078378A1 publication Critical patent/WO2024078378A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/02Arrangements for optimising operational condition

Definitions

  • the present application belongs to the field of communication technology, and specifically relates to a Doppler measurement method, device and communication equipment.
  • Doppler measurement is a common measurement in communication equipment.
  • the current measurement method is that the sending device sends a signal to the receiving device, and the receiving device performs Doppler measurement based on the received signal. In this way, there may be clock deviation between the sending device and the receiving device, which leads to poor accuracy of the Doppler measurement result.
  • the embodiments of the present application provide a Doppler measurement method, apparatus and communication equipment, which can solve the problem of poor accuracy of Doppler measurement results.
  • a Doppler measurement method is performed by a first device, comprising:
  • the first device sends a first signal to the second device
  • the first device receives a second signal sent by the second device, wherein the second signal is a signal obtained by the second device performing a first operation on the first signal;
  • the first device performs Doppler measurements based on the second signal.
  • a Doppler measurement method which is performed by a second device and includes:
  • the second device receives the first signal sent by the first device
  • the second device sends the second signal to the first device.
  • a Doppler measurement device comprising:
  • a first sending module configured to send a first signal to a second device
  • a first receiving module configured to receive a second signal sent by the second device, wherein the second signal is a signal obtained by the second device performing a first operation on the first signal;
  • a measurement module is used to perform Doppler measurement based on the second signal.
  • a Doppler measurement device comprising:
  • a first receiving module configured to receive a first signal sent by a first device
  • An execution module configured to execute a first operation on the first signal to obtain a second signal
  • the first sending module is used to send the second signal to the first device.
  • a communication device which terminal 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 Doppler measurement method on the first device side provided in an embodiment of the present application are implemented.
  • a communication device comprising a processor and a communication interface, wherein the communication interface is used to send a first signal to a second device; receive a second signal sent by the second device, wherein the second signal is a signal obtained by the second device performing a first operation on the first signal; and the processor or the communication interface is used to perform Doppler measurement based on the second signal.
  • a communication device 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 Doppler measurement method on the second device side provided in the embodiment of the present application are implemented.
  • a communication device comprising a processor and a communication interface, wherein the communication interface is used to receive a first signal sent by a first device; the communication interface or the processor is used to perform a first operation on the first signal to obtain a second signal; and the communication interface is also used to send the second signal to the first device.
  • a Doppler measurement system comprising: a first device and a second device, wherein the first device can be used to execute the steps of the Doppler measurement method on the first device side provided in an embodiment of the present application, and the second device can be used to execute the steps of the Doppler measurement method on the second device side provided in an embodiment of the present application.
  • a readable storage medium on which a program or instruction is stored.
  • the program or instruction is executed by a processor, the steps of the Doppler measurement method on the first device side provided in the embodiment of the present application are implemented, or the steps of the Doppler measurement method on the second device side provided in the embodiment of the present application are implemented.
  • a chip comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the Doppler measurement method on the first device side provided in an embodiment of the present application, or to implement the Doppler measurement method on the second device side provided in an embodiment of the present application.
  • a computer program/program product is provided, wherein the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the steps of the Doppler measurement method on the first device side provided in an embodiment of the present application, or the computer program/program product is executed by at least one processor to implement the steps of the Doppler measurement method on the second device side provided in an embodiment of the present application.
  • a first device sends a first signal to a second device; the first device receives a second signal sent by the second device, wherein the second signal is a signal obtained by the second device performing a first operation on the first signal; and the first device performs Doppler measurement based on the second signal.
  • the second signal is a signal obtained by performing the first operation on the first signal
  • the sending end and the receiving end of the signal for Doppler measurement are the same device, thereby avoiding the problem of clock deviation when the sending end and the receiving end are different devices, thereby achieving the effect of improving the accuracy of the Doppler measurement result.
  • FIG1 is a block diagram of a wireless communication system to which an embodiment of the present application can be applied;
  • FIG2 is a schematic diagram of a scenario of perception measurement provided by an embodiment of the present application.
  • FIG3 is a flow chart of a Doppler measurement method provided in an embodiment of the present application.
  • FIG4 is a schematic diagram of a Doppler measurement method provided in an embodiment of the present application.
  • FIG5 is a schematic diagram of a signal transmission provided in an embodiment of the present application.
  • FIG6 is a schematic diagram of another signal transmission provided in an embodiment of the present application.
  • FIG7 is a schematic diagram of an SNR calculation provided in an embodiment of the present application.
  • FIG8 is a flow chart of another Doppler measurement method provided in an embodiment of the present application.
  • FIG9 is a structural diagram of a Doppler measurement device provided in an embodiment of the present application.
  • FIG10 is a structural diagram of a Doppler measurement device provided in an embodiment of the present application.
  • FIG11 is a structural diagram of a communication device provided in an embodiment of the present application.
  • FIG12 is a structural diagram of another communication device provided in an embodiment of the present application.
  • FIG13 is a structural diagram of another communication device provided in an embodiment of the present application.
  • first, second, etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by “first” and “second” are generally of the same type, and the number of objects is not limited.
  • the first object can be one or more.
  • “and/or” in the specification and claims represents at least one of the connected objects, and the character “/" generally represents that the objects associated with each other are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency Division Multiple Access
  • NR new radio
  • FIG1 shows a block diagram of a wireless communication system applicable to the embodiment of the present application.
  • the wireless communication system includes a terminal 11 and a network side device 12.
  • the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer, or a network side device.
  • PDA Personal Digital Assistant
  • PDA netbook
  • ultra-mobile personal computer UMPC
  • MID mobile Internet Device
  • MID augmented reality
  • AR augmented reality
  • VR virtual reality
  • robot wearable device
  • VUE vehicle user equipment
  • pedestrian terminal Pedestrian User Equipment, PUE
  • smart home home equipment with wireless communication function, such as refrigerator, TV, washing machine or furniture, etc.
  • game console personal computer
  • personal computer personal computer, PC
  • wearable device includes: smart watch, smart bracelet, smart headset, smart glasses, smart jewelry (smart bracelet, smart bracelet, smart ring, smart necklace, smart anklet, smart anklet, etc.), smart wristband, smart clothing, etc.
  • the network side device 12 may include an access network device or a core network device, wherein the access network device may also be referred to as a radio access network device, a radio access network (RAN), 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 or a WiFi node, etc.
  • WLAN wireless local area network
  • the base station may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home B node, a home evolved B node, a transmission reception point (TRP) or other appropriate terms in the field, as long as the same technical effect is achieved, the base station is not limited to a 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.
  • the core network equipment may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (Mobility Management Entity, MME), access mobility management function (Access and Mobility Management Function, AMF), session management function (Session Management Function, SMF), user plane function (User Plane Function, UPF), policy control function (Policy Control Function, PCF), policy and charging rules function unit (Policy and Charging Rules Function, PCRF), edge application service discovery function (Edge Application Server Discovery Function, EASDF), unified data management (Unified Data Management, UDM), unified data storage (Unified Data Repository, UDR), home user server (Home Subscriber Server, HSS), centralized network configuration (CNC), network storage function (Network Repository Function, NRF), network exposure function (Network Exposure Function, NEF), local NEF (Local NEF, or L-NEF), binding support function (Binding Support Function, BSF), application function (Application Function, AF), etc. It should be noted that in
  • the network side device and the terminal may have a sensing capability, and can sense the position, distance, speed and other information of the target object through the sending and receiving of wireless signals, or detect, track, identify, image and the like the target object, event or environment.
  • Some sensing functions and application scenarios are shown in Table 1:
  • the embodiments of the present application can be applied to the communication and perception integration scenario, where communication and perception integration refers to the integrated design of communication and perception functions through spectrum sharing and hardware sharing in the same system. While transmitting information, the system can perceive information such as direction, distance, speed, and detect, track, and identify target devices or events.
  • the communication system and the perception system complement each other to achieve overall performance improvement and bring a better service experience.
  • the integration of communication and radar is a typical communication-perception integration (communication-perception fusion) application
  • the integration of communication and radar systems can bring many advantages, such as cost savings, size reduction, power consumption reduction, improved spectrum efficiency, reduced mutual interference, etc., thereby improving the overall performance of the system.
  • each sensing link in FIG2 is illustrated by an example of a sending node and a receiving node. In the actual system, different sensing links can be selected according to different sensing needs. Each sensing link may have one or more sending nodes and receiving nodes, and the actual sensing system may include a variety of different sensing links.
  • the sensing targets in FIG2 take people and cars as examples, and it is assumed that people and cars do not carry or install signal receiving/transmitting equipment, and the sensing targets in the actual scene will be richer.
  • Sensing link 1 The base station sends and receives sensing signals on its own. In this mode, the base station sends sensing signals and obtains sensing results by receiving the echo of the sensing signals.
  • Sensing link 2 air interface sensing between base stations. In this mode, base station 2 receives the sensing signal sent by base station 1 and obtains the sensing result.
  • Perception link 3 Uplink air interface perception. In this mode, the base station receives the perception signal sent by the terminal and obtains the perception result.
  • Perception link 4 Downlink air interface perception. In this mode, the terminal receives the perception signal sent by the base station and obtains the perception result.
  • Perception link 5 Terminal self-transmitting and self-receiving perception. In this mode, the terminal sends a perception signal and obtains the perception result by receiving the echo of the perception signal.
  • Perception link 6 Sidelink perception between terminals. For example, terminal 2 receives a perception signal sent by terminal 1 to obtain a perception result, or terminal 1 receives a perception signal sent by terminal 2 to obtain a perception result.
  • FIG. 3 is a flow chart of a Doppler measurement method provided in an embodiment of the present application. As shown in FIG. 3 , the method includes the following steps:
  • Step 301 A first device sends a first signal to a second device.
  • the above-mentioned first device is a terminal or a network side device.
  • the above-mentioned second device can be a network side device or a terminal.
  • the above-mentioned first device is a network side device
  • the above-mentioned second device can be a network side device or a terminal.
  • the first signal may include at least one of the following:
  • Reference signal communication data signal, synchronization signal, perception signal, and synaesthesia integration signal.
  • the above-mentioned reference signal may be a reference signal such as a demodulation reference signal (Demodulation Reference Signal, DMRS), a channel state information reference signal (Channel State Information-Reference Signal, CSI-RS) or a positioning reference signal (Positioning Reference Signal, PRS),
  • the above-mentioned synchronization signal may be a synchronization signal such as a primary synchronization signal (Primary Synchronization Signal, PSS) or a secondary synchronization signal (Secondary Synchronization Signal, SSS)
  • the above-mentioned perception signal may be a linear frequency modulation signal (Chirp) or other signals used for perception measurement
  • the above-mentioned synaesthesia integrated signal may be a signal used for both perception and communication.
  • Step 302 The first device receives a second signal sent by the second device, wherein the second signal is a signal obtained by the second device performing a first operation on the first signal.
  • the first signal is an uplink signal
  • the second signal is a downlink signal
  • the first device is a terminal
  • the second device is a network side device.
  • the terminal sends the first signal through an uplink time slot
  • the network side device sends the second signal through a downlink time slot.
  • the first signal is a downlink signal
  • the second signal is an uplink signal
  • the first device is a network side device
  • the second device is a terminal.
  • the network side device sends the first signal through a downlink time slot
  • the terminal sends the second signal through an uplink time slot.
  • the first operation may be an operation pre-agreed between the first device and the second device, or the first operation may be an operation defined in a protocol, or the first operation may be an operation determined by the second device.
  • the first operation includes but is not limited to at least one of frequency conversion, compensation, and sampling.
  • the first device receiving the second signal of the second device may be that after receiving the first signal, the second device feeds back the received signal to the first device. Specifically, after receiving the first signal, the second device performs the first operation on the first signal and sends the second signal to the first device.
  • Step 303 The first device performs Doppler measurement based on the second signal.
  • the above-mentioned first device performs Doppler measurement based on the second signal, which can be that the first device detects the phase change of the second signal in the time domain dimension to obtain the Doppler measurement result.
  • the first device performs a time domain fast Fourier transform (Fast Fourier Transform, FFT) on the above-mentioned second signal to obtain the Doppler measurement result.
  • FFT time domain fast Fourier transform
  • the Doppler measurement in the embodiment of the present application can be called Round Trip Doppler (RTD) measurement.
  • RTD Round Trip Doppler
  • the first signal and the second signal may be referred to as RTD measurement signals.
  • the above steps can be used to realize that the second signal is a signal obtained by performing the first operation on the first signal, so that the transmitting end and the receiving end of the signal for Doppler measurement are the same device, thereby avoiding the problem of clock deviation between the transmitting end and the receiving end being different devices, thereby achieving the effect of improving the accuracy of the Doppler measurement result.
  • the influence of the transmit and receive clock frequency deviation in the signal is offset, and at this time, the Doppler measurement performed by the first device is not affected by the transmit and receive clock frequency deviation, thereby improving the accuracy of the Doppler measurement result.
  • the time domain resource format of the first signal and the second signal is the same.
  • the same time domain resource format may include at least one of the following:
  • time domain resource lengths and time domain resource intervals are the same;
  • the time domain resource interval of the first signal refers to the interval between two adjacent time domain resource units corresponding to the first signal
  • the time domain resource interval of the second signal refers to the interval between two adjacent time domain resource units corresponding to the second signal.
  • the above-mentioned time domain resource interval may refer to the interval between adjacent time domain resource units among multiple time domain resource units corresponding to the signal.
  • the time domain resource of the first signal corresponds to multiple orthogonal frequency division multiplexing (OFDM) symbols, that is, the first signal corresponds to multiple occasions
  • the time domain resource interval refers to the time interval between adjacent OFDM symbols.
  • the above-mentioned time domain resource unit may be a time domain resource unit such as a symbol, a sub-time slot or a time slot.
  • the first signal and the second signal have the same Doppler measurement performance, thereby further improving the Doppler measurement accuracy.
  • the time domain resource lengths of the first signal and the second signal are associated with a preset Doppler resolution.
  • the association between the time domain resource length of the first signal and the second signal and the preset Doppler resolution may be that the time domain resource length of the first signal is associated with the preset Doppler resolution, and the time domain resource length of the second signal is associated with the preset Doppler resolution.
  • the association between the time domain resource length and the preset Doppler resolution may be that the time domain resource length is determined by the preset Doppler resolution, for example: the time domain resource length is determined according to a mapping relationship between the time domain resource length and the preset Doppler resolution agreed upon in the protocol.
  • the Doppler measurement result obtained based on the second signal measurement can meet the Doppler resolution requirement in the perception demand, or the accuracy of the perception result calculated based on the Doppler measurement result can meet the requirement.
  • the time domain resource length of the first signal and the second signal is greater than or equal to a first value, and the first value is 1 divided by the value of the preset Doppler resolution.
  • the time domain resource length of the first signal and the second signal is associated with the preset Doppler resolution to satisfy the following relationship:
  • T 1/ ⁇ f d
  • ⁇ f d the preset Doppler resolution
  • the time domain resource interval of the first signal is associated with a preset maximum unambiguous Doppler frequency shift
  • the second The time domain resource interval of the signal is associated with the preset maximum unambiguous Doppler frequency shift (or called the preset maximum unambiguous Doppler).
  • the time domain resource interval of the first signal may be associated with the preset maximum unambiguous Doppler frequency shift, and the time domain resource interval of the first signal may be determined by the preset maximum unambiguous Doppler frequency shift, for example, the time domain resource interval is determined according to the mapping relationship between the time domain resource interval and the preset maximum unambiguous Doppler frequency shift agreed in the protocol.
  • the time domain resource interval of the second signal is similar.
  • the time domain resource interval between the first signal and the second signal is associated with a preset maximum unambiguous Doppler frequency shift, Doppler ambiguity between the first signal and the second signal can be avoided, thereby further improving Doppler measurement accuracy.
  • the time domain resource interval of the first signal is less than or equal to a second value
  • the time domain resource interval of the second signal is less than or equal to the second value
  • the second value is 1 divided by a third value
  • the third value is equal to 2 times the preset maximum unambiguous Doppler shift, or the third value is 4 times a fourth value
  • the fourth value is the absolute value of the product of the preset maximum unambiguous Doppler shift.
  • the above time domain resource interval may satisfy the following relationship: ⁇ T ⁇ 1/(2 ⁇ f d max );
  • the above time domain resource interval may satisfy the following relationship:
  • ⁇ T is the time domain resource interval
  • f d max is the preset maximum unambiguous Doppler frequency shift.
  • the time domain resource interval of the first signal is less than or equal to the second value, and since the time domain resource interval of the second signal is the same as the time domain resource interval of the first signal, this ensures that Doppler ambiguity occurs between the first signal and the second signal, further improving the Doppler measurement accuracy.
  • At least one of the preset Doppler resolution and the preset maximum unambiguous Doppler frequency shift is determined according to perception requirements.
  • the above-mentioned perception needs can be acquired by the first device.
  • the above-mentioned perceived demand information may include one of the following:
  • Perception services can be classified by type or specific to a certain service, such as environmental reconstruction, breathing, or Heartbeat detection, positioning or trajectory tracking, motion recognition, weather monitoring, radar ranging, radar speed measurement, radar angle measurement, etc.
  • a perception target area where the perception target area may refer to a location area where a perception object may exist, or a location area where imaging is required, or a location area where environmental reconstruction is required;
  • Perception object type the perception object type can be used to classify the perception object according to its possible motion characteristics.
  • Each perception object type contains information such as the motion speed, motion acceleration, and typical radar cross section (RCS) of a typical perception object.
  • RCS radar cross section
  • Perceived quality of service which can be a performance indicator for perceiving a target area or a perceiving object, and can include at least one of the following:
  • Perception resolution can be further divided into: distance/delay resolution, angle resolution, velocity/Doppler resolution, imaging resolution, etc.
  • Perception accuracy can be further divided into: distance/delay accuracy, angle accuracy, speed/Doppler accuracy, positioning accuracy, etc.
  • the perception range can be further divided into: distance/delay range, speed/Doppler range, angle range, imaging range, etc.
  • Perception delay can be the time interval from the sending of the perception signal to the acquisition of the perception result, or the time interval from the initiation of the perception demand to the acquisition of the perception result;
  • Perception update rate the perception update rate can be the time interval between two consecutive perception executions and the acquisition of perception results
  • Detection probability which can be the probability of being correctly detected when the perceived object exists
  • the false alarm probability can be the probability of erroneously detecting a perceived target when the perceived object does not exist;
  • the time domain resource length and the time domain resource interval of the first signal and the second signal can correspond to the perception requirements, thereby enabling the Doppler measurement to meet the perception requirements and thereby improving the Doppler measurement performance.
  • At least one of the preset Doppler resolution and the preset maximum unambiguous Doppler frequency shift may also be agreed upon by a protocol or configured on the network side.
  • a total time domain resource length ( TRTD ) of the first signal and the second signal is less than or equal to a preset channel stabilization time; and/or,
  • the time interval between sending the second signal and sending the first signal is less than or equal to a preset time interval
  • the time domain starting position of the second signal is no later than a preset time position.
  • the preset channel stabilization time may be a time during which the channel Doppler remains approximately constant.
  • the preset channel stabilization time, preset time interval and preset time position may be agreed upon by a protocol or configured on the network side.
  • the channel can be relatively stable during the Doppler measurement process, so as to further improve the Doppler measurement accuracy.
  • the time interval between the transmission of the second signal and the first signal may be such that the time domain starting position of the first signal is The time interval of the starting position of the time domain.
  • the sending time interval between the second signal and the first signal is less than or equal to the preset time interval, it is possible to avoid the total length of the time domain resources of the second signal and the first signal being too large, for example: the total length of the time domain resources of the first signal and the second signal is made less than or equal to the preset channel stabilization time, so as to further improve the Doppler measurement accuracy.
  • the time domain starting position of the above-mentioned second signal is not later than the preset time position, it is possible to avoid the total length of the time domain resources of the second signal and the first signal being too large, for example: the total length of the time domain resources of the first signal and the second signal is made less than or equal to the preset channel stabilization time, so as to further improve the Doppler measurement accuracy.
  • the total length of time domain resources of the first signal and the second signal, or the time domain starting position of the second signal, or the sending time interval between the second signal and the first signal may be agreed upon or may be sent from the first device to the second device.
  • the first operation includes at least one of the following:
  • the above-mentioned down-conversion and up-conversion may be that the second device down-converts the received signal and up-converts the down-converted signal, so as to send the up-converted second signal to the first device.
  • the first signal s(t) sent by the first device is expressed as follows after up-conversion:
  • s(t) represents the first signal
  • f t represents the carrier frequency of the first device
  • t represents the time domain sampling point
  • the first signal after down-conversion received by the second device is expressed as:
  • H represents H reflectors in the channel
  • h represents the h-th reflector
  • b h is the amplitude attenuation factor
  • s(t- ⁇ h ) represents the first signal after ⁇ h delay
  • ⁇ h represents the delay corresponding to the h-th reflector
  • f D,h represents the Doppler frequency shift information corresponding to the h-th reflector in the channel
  • f r represents the carrier frequency of the second device, represents random phase rotation
  • the second device up-converts r(t) to obtain r1(t), that is, the second signal is sent to the first device:
  • the first device receives r1(t) and performs down-conversion to obtain:
  • s(t-( ⁇ ' h )) represents the first signal after a delay of ⁇ ' h
  • ⁇ ' h represents the sum of the delay corresponding to the hth reflector in the process of the first device sending the first signal to the second device and the delay corresponding to the hth reflector in the process of the second device sending the second signal to the first device.
  • the first device estimates Doppler information based on r2(t).
  • the influence of the signal receiving and transmitting clock frequency deviation can be better eliminated through the above-mentioned down-conversion and up-conversion, and the accuracy of the Doppler measurement result can be further improved.
  • the above-mentioned baseband frequency offset compensation may be baseband frequency offset estimation and compensation, that is, baseband frequency offset compensation is performed based on baseband frequency offset estimation.
  • the baseband frequency offset compensation is performed on the first signal, the accuracy of the baseband frequency offset of the second signal can be improved while avoiding the clock offset problem when the transmitting end and the receiving end are different devices, thereby further improving the accuracy of the Doppler measurement result.
  • the frequency domain sampling may be to extract the signal in the frequency domain, thereby reducing the second signal transmission overhead.
  • the first operation includes any one or more of down-conversion and up-conversion, baseband frequency offset compensation, and frequency domain sampling
  • the clock deviation problem between the transmitting end and the receiving end for different devices can be avoided.
  • the second signal is a signal obtained by performing the first operation on the first signal, and the transmitting end and the receiving end of the signal for performing Doppler measurement are the same device, thereby avoiding the clock deviation problem between the transmitting end and the receiving end for different devices, thereby achieving the effect of improving the accuracy of the Doppler measurement results.
  • the down-conversion and up-conversion include:
  • the first frequency is the same as the second frequency, or the first frequency is different from the second frequency.
  • the difference between the first frequency and the second frequency is indicated by the second device to the first device.
  • the first device can know the difference between the two, and then accurately perform Doppler measurement.
  • the difference between the first frequency and the second frequency may also be agreed upon by the protocol or configured on the network side.
  • the method before the first device receives the second signal sent by the second device, the method further includes:
  • the first device sends a request message to the second device, where the request message is used to request the second device to participate in Doppler measurement.
  • the request message may be used to notify the second device to perform round-trip Doppler measurement.
  • the request message may also be referred to as a round-trip Doppler measurement request.
  • round-trip Doppler measurement can be performed based on the round-trip Doppler measurement request to avoid the second device feeding back the second signal to the first device in a non-round-trip Doppler measurement scenario.
  • the above request message may not be sent, for example, it is pre-agreed to perform round-trip Doppler measurement in some special scenarios or special services.
  • the method before the first device receives the second signal sent by the second device, the method further includes:
  • the first device receives a response message sent by the second device, wherein the response message is used to indicate that the second device
  • the response message is used to indicate at least one of the following: the second device refuses to participate in the Doppler measurement and the reason why the second device refuses to participate in the Doppler measurement;
  • the first device receives the second signal sent by the second device.
  • the first device may request other devices to participate in the Doppler measurement, or end the Doppler measurement; when the above-mentioned response message indicates the reason why the second device refuses to participate in the Doppler measurement, the first device may request other devices to participate in the Doppler measurement, or end the Doppler measurement, or adjust the configuration of the first signal based on the above-mentioned reason, and request the second device to participate in the Doppler measurement again based on the adjusted configuration.
  • round-trip Doppler measurement can be performed based on the request message and the response message.
  • the response message may indicate acceptance or refusal to participate in the round-trip Doppler measurement, and/or explain the reason for refusing the round-trip Doppler measurement.
  • the second device after receiving the request message, the second device sends the response message to the first device, indicating acceptance or refusal to participate in the round-trip Doppler measurement, and/or explaining the reason for refusing the round-trip Doppler measurement.
  • the second device determines whether to accept or reject the request message based on at least one of its own mobility information, location information, power information, and transmission resource information.
  • the above-mentioned response message may not be sent.
  • the second device accepts to participate in the Doppler measurement.
  • One embodiment, as shown in FIG4 includes the following steps:
  • the first device obtains the perception measurement requirement information
  • the first device sends a round-trip Doppler measurement request to the second device;
  • the second device sends a round-trip Doppler measurement response to the first device
  • the first device sends a first signal to the second device
  • the second device sends a second signal to the first device
  • the first device obtains a target Doppler calculation result based on the second signal, that is, obtains a Doppler measurement result.
  • At least one of the first configuration information of the first signal, the second configuration information of the second signal, and the first operation is pre-agreed
  • the method before the first device receives the second signal sent by the second device, the method further includes:
  • the first device sends configuration information to the second device, where the configuration information includes at least one of the following:
  • the first configuration information of the first signal the second configuration information of the second signal, and the time domain position relationship configuration, wherein the time domain position relationship configuration is the time domain position relationship configuration between the first signal and the second signal.
  • the first configuration information may include at least one of the following items corresponding to the first signal:
  • Signal configuration identifier waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction;
  • the second configuration information may include at least one of the following items corresponding to the second signal:
  • Signal configuration identifier waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction;
  • the temporal location relationship configuration may include at least one of the following:
  • the time interval between the time domain start position of the first signal and the time domain end position of the second signal is the time interval between the time domain start position of the first signal and the time domain end position of the second signal.
  • the signal configuration identifier is used to distinguish different signal configurations, and the signal configurations of the first signal and the second signal can be determined by the signal configuration identifier.
  • the above waveform can be OFDM, Single-carrier Frequency-Division Multiple Access (SC-FDMA), Orthogonal Time Frequency Space (OTFS), Frequency Modulated Continuous Wave (FMCW) or pulse signal, etc.;
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • OTFS Orthogonal Time Frequency Space
  • FMCW Frequency Modulated Continuous Wave
  • pulse signal etc.
  • the above subcarrier spacing may be the subcarrier spacing of an OFDM system, for example, 30 KHz.
  • the above-mentioned protection interval can be the time interval from the moment when the signal ends to the moment when the latest echo signal of the signal is received.
  • This parameter is proportional to the maximum perception distance; for example, it can be calculated by c/(2R max ), where R max is the maximum perception distance (belonging to perception requirement information).
  • R max represents the maximum distance from the perception signal receiving and transmitting point to the signal transmitting point; in some cases, the OFDM signal cyclic prefix (CP) can play the role of the minimum protection interval, and c is the speed of light.
  • the above-mentioned frequency domain starting position can be the starting frequency point, or it can be the starting resource element (RE) or resource block (RB) index.
  • the frequency domain resource length may be a frequency domain bandwidth, which is inversely proportional to the distance resolution.
  • the frequency domain bandwidth of each signal is B ⁇ c/(2 ⁇ R), where c is the speed of light and ⁇ R is the distance resolution.
  • the above is inversely proportional to the maximum unambiguous distance or the maximum unambiguous delay, wherein, for the OFDM system, when the subcarriers adopt continuous mapping, the frequency domain spacing is equal to the subcarrier spacing.
  • the time domain starting position may be a starting time point, or a starting symbol, time slot, or frame index.
  • the time domain resource length may be a burst duration, and the time domain resource length is inversely proportional to the Doppler resolution (which belongs to the perception requirement information).
  • the above-mentioned time domain resource interval may be the time interval between two adjacent signals.
  • the signal power may be an interval power value, for example, a value is taken every 2dBm from -20dBm to 23dBm.
  • the above sequence information may generate sequence information, such as a ZC (Zadoff–Chu) sequence or a pseudo-random (Pseudo-Noise, PN) sequence, and may also include a generation method.
  • sequence information such as a ZC (Zadoff–Chu) sequence or a pseudo-random (Pseudo-Noise, PN) sequence, and may also include a generation method.
  • the above-mentioned signal direction may be angle information or beam information of signal transmission.
  • the time domain resource for sending the second signal is associated with the channel stabilization time, that is, the time interval ( TRTD ) between the time domain start position of the first signal and the time domain end position of the second signal is less than or equal to the channel stabilization time.
  • TRTD time interval
  • the relationship between the sending time domain resource position of the second signal and the time domain resource position of the first signal is shown in FIG5 .
  • T offset1 represents the time interval between the time domain starting position of the first signal and the time domain starting position of the second signal
  • T offset2 represents the time interval between the time domain ending position of the first signal and the time domain starting position of the second signal
  • T offset3 represents the time interval between the time domain ending position of the first signal and the time domain ending position of the second signal
  • TRTD represents the time interval between the time domain starting position of the first signal and the time domain ending position of the second signal.
  • the first signal and the second signal may be sent sequentially or alternately in the time domain, as shown in FIG6 .
  • the relative time domain position relationship between the first signal and the second signal does not include T offset2 and T offset3 .
  • the first configuration information of the first signal and the second configuration information of the second signal can realize reliable transmission of the first signal and the second signal between the first device and the second device.
  • the method before the first device receives the second signal sent by the second device, the method further includes:
  • the first device sends first indication information to the second device, where the first indication information is used to instruct the second device to perform the first operation on the received first signal.
  • the first indication information may indicate specific content of the first operation, or may indicate an operation that is allowed or prohibited for the second device.
  • the first indication information includes at least one of the following:
  • the crystal oscillator frequency adjustment indication is used to prohibit the second device from adjusting the crystal oscillator frequency of the received first signal; or, the crystal oscillator frequency adjustment indication is used to allow the second device to adjust the crystal oscillator frequency of the received first signal, or, the crystal oscillator frequency adjustment indication is used to instruct the second device to indicate the difference between a first frequency and a second frequency to the first device, the first frequency being the frequency at which the second device down-converts the first signal, and the second frequency being the frequency at which the second device up-converts the first signal;
  • the frequency offset compensation indication is used to prohibit the second device from performing baseband frequency offset compensation on the received first signal; or, the frequency offset compensation indication is used to allow the second device to perform baseband frequency offset compensation on the received first signal, or, the frequency offset compensation indication is used to instruct the second device to indicate a baseband frequency offset compensation value to the first device;
  • the frequency domain extraction indication is used for frequency domain extraction rules
  • the threshold indication is used to indicate a performance indicator threshold.
  • the crystal oscillator frequency adjustment indication is used to prohibit the second device from adjusting the crystal oscillator frequency of the received first signal.
  • the second device down-converts the first signal based on the first frequency and up-converts the second signal based on the second frequency, the first frequency and the second frequency are the same.
  • the crystal oscillator frequency adjustment instruction is used to allow the second device to adjust the crystal oscillator frequency of the received first signal.
  • the second device may down-convert the first signal based on the first frequency and convert the second signal based on the second frequency.
  • the first frequency and the second frequency may be different, for example, the second device reports a frequency difference to the first device, or performs a frequency conversion operation based on a pre-agreed frequency difference.
  • the above-mentioned frequency offset compensation indication is used to allow the second device to perform baseband frequency offset compensation on the received first signal. It can be that when the second device performs baseband frequency offset compensation on the first signal, the second device notifies the first device of the frequency offset compensation value, or performs the frequency offset compensation value based on a preset agreed frequency offset compensation value.
  • the frequency domain extraction rule may be an RB extraction rule, for example: the first signal includes 273 RBs, and 20 RBs are selected.
  • the above-mentioned frequency domain extraction rule may be a frequency domain resource index directly indicating the extraction, or may be a frequency domain sampling interval that the second signal after extraction needs to satisfy.
  • the second device can perform the first operation based on the instruction of the first device, thereby reducing the complexity of Doppler measurement.
  • the first indication information may further include at least one of configuration information of the first signal and configuration information of the second signal, for example, a signal configuration identifier including at least one of the first signal and the second signal.
  • the method further includes at least one of the following:
  • the first device receives performance indicator information sent by the second device, where the performance indicator information is performance indicator information obtained by measuring the first signal;
  • the first device receives second indication information sent by the second device, where the second indication information is used to indicate at least one of the following:
  • the above performance indicator information may include at least one of the following:
  • Signal strength information Signal strength information, signal to interference and noise ratio (Signal to Interference plus Noise Ratio, SINR) information, signal to noise ratio (Signal to Noise Ratio, SNR) information, perceived SNR information, perceived SINR information.
  • SINR Signal to Interference plus Noise Ratio
  • SNR Signal to Noise Ratio
  • SINR information refers to SINR information in a non-perceptual dimension
  • SNR information refers to SNR information in a non-perceptual dimension
  • the perceived SNR may be a ratio of a signal component power of the perceived first signal to a noise power
  • the perceived SINR may be a ratio of a signal component power of the perceived first signal to a sum of powers of noise and interference.
  • a method for acquiring the perceived first signal power may be at least one of the following options:
  • Method 1 Based on the time delay one-dimensional graph obtained by fast time dimension FFT processing of the echo signal, a constant false alarm rate detector (CFAR) is performed, and the maximum amplitude sample point of the CFAR over-threshold is taken as the target sample point, and its amplitude is taken as the target signal amplitude to calculate the echo signal power, as shown in FIG7 ;
  • CFAR constant false alarm rate detector
  • Method 2 CFAR is performed based on the Doppler one-dimensional image obtained by slow time dimension FFT processing of the echo signal, and the echo signal power is calculated by taking the maximum amplitude sample point of the CFAR threshold as the target sample point and its amplitude as the target signal amplitude, as shown in FIG7 ;
  • Method 3 The delay-Doppler two-dimensional image obtained by 2D-FFT processing of the echo signal is fed into CFAR.
  • the maximum threshold amplitude sampling point is the target sampling point, and its amplitude is used as the target signal amplitude to calculate the echo signal power;
  • Method 4 CFAR is performed based on the delay-Doppler-angle three-dimensional graph obtained by 3D-FFT processing of the echo signal, and the echo signal power is calculated by taking the maximum amplitude sample point of the CFAR threshold as the target sample point and its amplitude as the target signal amplitude;
  • the method of determining the signal amplitude can also be to use the CFAR threshold-crossing amplitude maximum sampling point and the average of several adjacent threshold-crossing sampling points as the target signal amplitude to calculate the echo signal power.
  • the method for obtaining the SNR/SINR of the echo signal may be at least one of the following options:
  • Method 1 CFAR is performed based on the time delay one-dimensional graph obtained by fast time dimension FFT processing of the echo signal.
  • the maximum amplitude sample point of CFAR over the threshold is taken as the target sample point, and its amplitude is taken as the target signal amplitude.
  • All sample points other than ⁇ sample points from the target sample point in the one-dimensional graph are taken as interference/noise sample points, and their average interference/amplitude is counted as the interference/noise signal amplitude, as shown in FIG7.
  • the SNR/SINR is calculated using the target signal amplitude and the interference/noise signal amplitude, and ⁇ is a constant.
  • Method 2 Perform CFAR based on the Doppler one-dimensional image obtained by slow time dimension FFT processing of the echo signal, take the maximum amplitude sample point of CFAR over the threshold as the target sample point, and take its amplitude as the target signal amplitude, take all the sample points in the one-dimensional image that are ⁇ sample points away from the target sample point as interference/noise sample points, and count their average amplitude as interference/noise signal amplitude, and finally calculate SNR/SINR with the target signal amplitude and interference/noise signal amplitude, where ⁇ is a constant;
  • Method 3 The delay-Doppler two-dimensional map obtained by 2D-FFT processing of the echo signal is used for CFAR.
  • the maximum amplitude sample point of CFAR that passes the threshold is taken as the target sample point, and its amplitude is taken as the target signal amplitude.
  • All sample points in the two-dimensional map that are ⁇ (fast time dimension) and ⁇ (slow time dimension) away from the target sample point are taken as interference/noise sample points, and their average amplitude is counted as the interference/noise signal amplitude.
  • the SNR/SINR is calculated based on the target signal amplitude and the interference/noise signal amplitude.
  • Method 4 CFAR is performed based on the delay-Doppler-angle three-dimensional graph obtained by 3D-FFT processing of the echo signal.
  • the maximum amplitude sample point of the CFAR threshold is taken as the target sample point, and its amplitude is taken as the target signal amplitude.
  • All sample points other than ⁇ (fast time dimension), ⁇ (slow time dimension) and ⁇ (angle dimension) sample points from the target sample point in the three-dimensional graph are taken as interference/noise sample points, and their average amplitude is counted as the interference/noise signal amplitude.
  • the SNR/SINR is calculated using the target signal amplitude and the interference/noise signal amplitude, and ⁇ is a constant.
  • Method 5 Method for determining target signal amplitude: In addition to the above method of using the maximum amplitude sample point of CFAR over-threshold as the target sample point, the target signal amplitude can also be determined by using the maximum amplitude sample point of CFAR over-threshold and the average of several adjacent over-threshold sample points.
  • the method for determining the interference/noise sample points can also be further screened according to the interference/noise sample points determined above, and the screening method is: for the one-dimensional delay graph, remove a number of sample points near the delay of 0, and use the remaining interference/noise sample points as noise sample points; or, for the one-dimensional Doppler graph, remove a number of sample points near the Doppler of 0, and use the remaining interference/noise sample points as interference/noise sample points; or, for the two-dimensional delay-Doppler graph, remove the interference/noise sample points in the strip range composed of a number of points near the delay of 0 and the entire Doppler range, and use the remaining interference/noise sample points as interference/noise sample points.
  • the remaining noise sample points are used as interference/noise sample points; or, for the delay-Doppler-angle three-dimensional graph, the interference/noise sample points in the slice-shaped range composed of several points around the time dimension 0, the entire Doppler range and the entire angle range are removed, and the remaining interference/noise sample points are used as interference/noise sample points.
  • the second indication information may be sent by the second device based on the performance indicator information. For example, if the performance indicator information does not meet expectations, the second indication information is sent to indicate configuration adjustment of the first signal or to indicate round-trip Doppler measurement failure.
  • the second device makes a judgment based on a preset threshold, and when the performance indicator information does not meet the threshold requirement, it sends a round-trip Doppler measurement failure indication and/or a first signal adjustment indication to the first device, notifying the first device that the round-trip Doppler measurement based on the current first signal has failed, wherein the threshold value can be agreed upon or notified by the first device.
  • the second indication information may be a round-trip Doppler measurement failure indication or a first signal adjustment indication as shown in FIG. 4 .
  • the first device may determine whether to adjust the first signal based on the above performance indicator information, or determine whether the round-trip Doppler measurement fails, that is, the second device may not send the above second indication information to the first device.
  • the method further includes:
  • the first device sends third indication information to the second device, where the third indication information is used to indicate at least one of the following:
  • a) the second device sends performance indicator information to the first device, and the first device determines to adjust the first signal configuration or determines that the round-trip Doppler measurement fails according to the performance indicator information.
  • a failure indication can also be fed back to the perception demand initiator.
  • the above-mentioned configuration adjustment of the first signal may be that the first device adjusts the parameters of the first signal, for example: increasing the transmission power or time-frequency domain density of the first signal, re-performing round-trip Doppler measurement, or determining that the measurement has failed and feeding back a failure indication to the initiator of the perception demand.
  • performing configuration adjustment on the first signal may also be referred to as a second operation.
  • the method further includes:
  • the first device obtains a perception measurement result based on the Doppler measurement result.
  • the Doppler measurement result is the measurement result obtained in step 303 .
  • the perception result may be a perception result corresponding to a perception service using Doppler as a basic measurement quantity, for example, including but not limited to at least one of the following:
  • the first device may also send it to a third device, and the third device obtains the perception result based on the Doppler measurement result.
  • the third device may be a perception network function, a perception network Meta or Sensing Management Function (Sensing MF).
  • the perception network function, the perception network element or the perception management function may be on the RAN side or the core network side, and refers to a network node in the core network and/or the RAN side that is responsible for at least one function of perception request processing, perception resource scheduling, perception information interaction, and perception data processing. It may be based on the AMF or LMF upgrade in the 5G network, or it may be other network nodes or newly defined network nodes.
  • the functional characteristics of the perception network function, the perception network element or the perception management function may include at least one of the following:
  • Target information is interacted with a wireless signal sending device and/or a wireless signal measuring device (including a target terminal or a serving base station of the target terminal or a base station associated with a target area), wherein the target information includes a perception processing request, a perception capability, perception auxiliary data, a perception measurement quantity type, a perception resource configuration information, etc., so as to obtain the value of a target perception result or a perception measurement quantity (an uplink measurement quantity or a downlink measurement quantity) sent by the wireless signal measuring device; wherein the wireless signal may also be referred to as a perception signal.
  • the perception method to be used is determined based on factors such as the type of perception service, perception service consumer information, required perception QoS requirement information, the perception capability of the wireless signal sending device, the perception capability of the wireless signal measuring device, etc.
  • the perception method may include any of the perception methods shown in Figure 2.
  • the perception device serving the perception service is determined based on factors such as the type of perception service, information about the perception service consumer, required perception QoS requirement information, the perception capability of the wireless signal sending device, and the perception capability of the wireless signal measuring device, wherein the perception device includes a wireless signal sending device and/or a wireless signal measuring device.
  • the values of the sensed measurements are processed or calculated to obtain the sensed results. Furthermore, the sensed results are verified and the sensed accuracy is estimated.
  • a first device sends a first signal to a second device; the first device receives a second signal sent by the second device, wherein the second signal is a signal obtained by the second device performing a first operation on the first signal; and the first device performs Doppler measurement based on the second signal.
  • the second signal is a signal obtained by performing the first operation on the first signal
  • the sending end and the receiving end of the signal for Doppler measurement are the same device, thereby avoiding the problem of clock deviation when the sending end and the receiving end are different devices, thereby achieving the effect of improving the accuracy of the Doppler measurement result.
  • a first device sends a first signal, and a second device feeds back the received signal to the first device, and the first device performs Doppler measurement. That is, after the second device feeds back the received signal to the first device, the influence of the transmit and receive clock frequency deviation in the signal is offset. At this time, the Doppler measurement performed by the first device is not affected by the transmit and receive clock frequency deviation, and the original channel Doppler information can be measured and obtained, which can be used for perception services with Doppler as the basic measurement quantity.
  • FIG. 8 is a flow chart of another Doppler measurement method provided in an embodiment of the present application. As shown in FIG. 8 , the method includes the following steps:
  • Step 801 The second device receives a first signal sent by the first device
  • Step 802 The second device performs a first operation on the first signal to obtain a second signal
  • Step 803 The second device sends the second signal to the first device.
  • the time domain resource format of the first signal and the second signal is the same.
  • the same time domain resource format includes at least one of the following:
  • time domain resource lengths and time domain resource intervals are the same;
  • the time domain resource interval of the first signal refers to the interval between two adjacent time domain resource units corresponding to the first signal
  • the time domain resource interval of the second signal refers to the interval between two adjacent time domain resource units corresponding to the second signal.
  • the time domain resource lengths of the first signal and the second signal are associated with a preset Doppler resolution; and/or,
  • the time domain resource interval of the first signal is associated with a preset maximum unambiguous Doppler frequency shift
  • the time domain resource interval of the second signal is associated with the preset maximum unambiguous Doppler frequency shift
  • the time domain resource lengths of the first signal and the second signal are greater than or equal to a first value, and the first value is 1 divided by a value of the preset Doppler resolution;
  • the time domain resource interval of the first signal is less than or equal to a second value, and the time domain resource interval of the second signal is less than or equal to the second value; wherein the second value is 1 divided by a third value, and the third value is equal to 2 times the preset maximum unambiguous Doppler shift, or the third value is 4 times a fourth value, and the fourth value is the absolute value of the product of the preset maximum unambiguous Doppler shift.
  • At least one of the preset Doppler resolution and the preset maximum unambiguous Doppler frequency shift is determined according to perception requirements.
  • the total length of the time domain resources of the first signal and the second signal is less than or equal to a preset channel stabilization time; and/or,
  • the time interval between sending the second signal and sending the first signal is less than or equal to a preset time interval
  • the time domain starting position of the second signal is no later than a preset time position.
  • the first operation includes at least one of the following:
  • the down-conversion and up-conversion include:
  • the first frequency is the same as the second frequency, or the first frequency is different from the second frequency.
  • the difference between the first frequency and the second frequency is indicated by the second device to the first device.
  • the method further includes:
  • the second device receives a request message sent by the first device, where the request message is used to request the second device to participate in Doppler measurement.
  • the method further includes:
  • the second device sends a response message to the first device, where the response message is used to indicate that the second device participates in Doppler measurement, or the response message is used to indicate at least one of the following: the second device refuses to participate in Doppler measurement and the reason why the second device refuses to participate in Doppler measurement;
  • the second device when the response message indicates that the second device participates in Doppler measurement, the second device sends the second signal to the first device.
  • At least one of the first configuration information of the first signal, the second configuration information of the second signal, and the first operation is pre-agreed;
  • the method further includes:
  • the second device receives configuration information sent by the first device, where the configuration information includes at least one of the following:
  • the first configuration information of the first signal the second configuration information of the second signal, and the time domain position relationship configuration, wherein the time domain position relationship configuration is the time domain position relationship configuration between the first signal and the second signal.
  • the first configuration information includes at least one of the following items corresponding to the first signal:
  • Signal configuration identifier waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction;
  • the second configuration information includes at least one of the following items corresponding to the second signal:
  • Signal configuration identifier waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction;
  • the time domain position relationship configuration includes at least one of the following:
  • the time interval between the time domain start position of the first signal and the time domain end position of the second signal is the time interval between the time domain start position of the first signal and the time domain end position of the second signal.
  • the method further includes:
  • the second device receives first indication information sent by the first device, where the first indication information is used to instruct the second device to perform the first operation on the received first signal.
  • the first indication information includes at least one of the following:
  • the crystal oscillator frequency adjustment indication is used to prohibit the second device from adjusting the crystal oscillator frequency of the received first signal; or, the crystal oscillator frequency adjustment indication is used to allow the second device to adjust the crystal oscillator frequency of the received first signal, or, the crystal oscillator frequency adjustment indication is used to instruct the second device to indicate the difference between the first frequency and the second frequency to the first device, the first frequency being the difference between the first frequency and the second frequency when the second device adjusts the first signal.
  • a frequency of frequency conversion wherein the second frequency is a frequency at which the second device up-converts the first signal
  • the frequency offset compensation indication is used to prohibit the second device from performing baseband frequency offset compensation on the received first signal; or, the frequency offset compensation indication is used to allow the second device to perform baseband frequency offset compensation on the received first signal, or, the frequency offset compensation indication is used to instruct the second device to indicate a baseband frequency offset compensation value to the first device;
  • the frequency domain extraction indication is used for frequency domain extraction rules
  • the threshold indication is used to indicate a performance indicator threshold.
  • the method further includes at least one of the following:
  • the second device sends performance indicator information to the first device, where the performance indicator information is performance indicator information obtained by measuring the first signal;
  • the second device sends second indication information to the second device, where the second indication information is used to indicate at least one of the following:
  • the performance indicator information includes at least one of the following:
  • Signal strength information signal to interference and noise ratio SINR information, SNR information, perceived SNR information, perceived SINR information.
  • the method further includes:
  • the second device receives third indication information sent by the first device, where the third indication information is used to indicate at least one of the following:
  • this embodiment is an implementation of the second device corresponding to the embodiment shown in Figure 3. Its specific implementation can refer to the relevant description of the embodiment shown in Figure 3. In order to avoid repeated description, this embodiment will not be repeated.
  • FIG. 9 is a structural diagram of a Doppler measurement device provided in an embodiment of the present application.
  • the Doppler measurement device 900 includes:
  • a first sending module 901, configured to send a first signal to a second device
  • a first receiving module 902 is configured to receive a second signal sent by the second device, wherein the second signal is a signal obtained by the second device performing a first operation on the first signal;
  • the measuring module 903 is configured to perform Doppler measurement based on the second signal.
  • the time domain resource format of the first signal and the second signal is the same.
  • the same time domain resource format includes at least one of the following:
  • time domain resource lengths and time domain resource intervals are the same;
  • the time domain resource interval of the first signal refers to the interval between two adjacent time domain resource units corresponding to the first signal
  • the time domain resource interval of the second signal refers to the interval between two adjacent time domain resource units corresponding to the second signal.
  • the interval between elements refers to the interval between elements.
  • the time domain resource lengths of the first signal and the second signal are associated with a preset Doppler resolution; and/or,
  • the time domain resource interval of the first signal is associated with a preset maximum unambiguous Doppler frequency shift
  • the time domain resource interval of the second signal is associated with the preset maximum unambiguous Doppler frequency shift
  • the time domain resource lengths of the first signal and the second signal are greater than or equal to a first value, and the first value is 1 divided by a value of the preset Doppler resolution;
  • the time domain resource interval of the first signal is less than or equal to a second value, and the time domain resource interval of the second signal is less than or equal to the second value; wherein the second value is 1 divided by a third value, and the third value is equal to 2 times the preset maximum unambiguous Doppler shift, or the third value is 4 times a fourth value, and the fourth value is the absolute value of the product of the preset maximum unambiguous Doppler shift.
  • At least one of the preset Doppler resolution and the preset maximum unambiguous Doppler frequency shift is determined according to perception requirements.
  • the total length of the time domain resources of the first signal and the second signal is less than or equal to a preset channel stabilization time; and/or,
  • the time interval between sending the second signal and sending the first signal is less than or equal to a preset time interval
  • the time domain starting position of the second signal is no later than a preset time position.
  • the first operation includes at least one of the following:
  • the down-conversion and up-conversion include:
  • the first frequency is the same as the second frequency, or the first frequency is different from the second frequency.
  • the difference between the first frequency and the second frequency is indicated by the second device to the first device.
  • the device further comprises:
  • the second sending module is used to send a request message to the second device, where the request message is used to request the second device to participate in Doppler measurement.
  • the device further comprises:
  • a second receiving module is used to receive a response message sent by the second device, where the response message is used to indicate that the second device participates in Doppler measurement, or the response message is used to indicate at least one of the following: the second device refuses to participate in Doppler measurement and the reason why the second device refuses to participate in Doppler measurement;
  • the first receiving module receives the second signal sent by the second device when the response message indicates that the second device participates in Doppler measurement.
  • At least one of the first configuration information of the first signal, the second configuration information of the second signal, and the first operation is pre-agreed;
  • the device further comprises:
  • a third sending module is configured to send configuration information to the second device, where the configuration information includes at least one of the following:
  • the first configuration information of the first signal the second configuration information of the second signal, and the time domain position relationship configuration, wherein the time domain position relationship configuration is the time domain position relationship configuration between the first signal and the second signal.
  • the first configuration information includes at least one of the following items corresponding to the first signal:
  • Signal configuration identifier waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction;
  • the second configuration information includes at least one of the following items corresponding to the second signal:
  • Signal configuration identifier waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction;
  • the time domain position relationship configuration includes at least one of the following:
  • the time interval between the time domain start position of the first signal and the time domain end position of the second signal is the time interval between the time domain start position of the first signal and the time domain end position of the second signal.
  • the device further comprises:
  • the fourth sending module is used to send first indication information to the second device, where the first indication information is used to instruct the second device to perform the first operation on the received first signal.
  • the first indication information includes at least one of the following:
  • the crystal oscillator frequency adjustment indication is used to prohibit the second device from adjusting the crystal oscillator frequency of the received first signal; or, the crystal oscillator frequency adjustment indication is used to allow the second device to adjust the crystal oscillator frequency of the received first signal, or, the crystal oscillator frequency adjustment indication is used to instruct the second device to indicate the difference between a first frequency and a second frequency to the first device, the first frequency being the frequency at which the second device down-converts the first signal, and the second frequency being the frequency at which the second device up-converts the first signal;
  • the frequency offset compensation indication is used to prohibit the second device from performing baseband frequency offset compensation on the received first signal; or, the frequency offset compensation indication is used to allow the second device to perform baseband frequency offset compensation on the received first signal, or, the frequency offset compensation indication is used to instruct the second device to indicate a baseband frequency offset compensation value to the first device;
  • the frequency domain extraction indication is used for frequency domain extraction rules
  • the threshold indication is used to indicate a performance indicator threshold.
  • the device further comprises at least one of the following:
  • a third receiving module is used to receive performance indicator information sent by the second device, where the performance indicator information is performance indicator information measured for the first signal;
  • the fourth receiving module is used to receive second indication information sent by the second device, where the second indication information is used to indicate at least one of the following:
  • the performance indicator information includes at least one of the following:
  • Signal strength information signal to interference and noise ratio SINR information, signal to noise ratio SNR information, perceived SNR information, perceived SINR information.
  • the device further comprises:
  • a fifth sending module is used to send third indication information to the second device when the performance indicator information does not meet the preset threshold condition, where the third indication information is used to indicate at least one of the following:
  • the device further comprises:
  • the acquisition module is used to acquire the perception measurement result based on the Doppler measurement result.
  • the first signal is an uplink signal
  • the second signal is a downlink signal
  • the first signal is a downlink signal
  • the second signal is an uplink signal
  • the first signal includes at least one of the following:
  • Reference signal communication data signal, synchronization signal, perception signal, and synaesthesia integration signal.
  • the Doppler measurement device can improve the Doppler measurement accuracy.
  • the Doppler measurement device in the embodiment of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip.
  • the electronic device can be a terminal, or it can be other devices other than a terminal.
  • the terminal can include but is not limited to the types of terminals listed in the embodiment of the present application, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.
  • the Doppler measurement device provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in Figure 3 and achieve the same technical effect. To avoid repetition, it will not be described here.
  • FIG. 10 is a structural diagram of a Doppler measurement device provided in an embodiment of the present application.
  • the Doppler measurement device 1000 includes:
  • a first receiving module 1001 configured to receive a first signal sent by a first device
  • An execution module 1002 is configured to execute a first operation on the first signal to obtain a second signal
  • the first sending module 1003 is configured to send the second signal to the first device.
  • the time domain resource format of the first signal and the second signal is the same.
  • the same time domain resource format includes at least one of the following:
  • time domain resource lengths and time domain resource intervals are the same;
  • the time domain resource interval of the first signal refers to the interval between two adjacent time domain resource units corresponding to the first signal
  • the time domain resource interval of the second signal refers to the interval between two adjacent time domain resource units corresponding to the second signal.
  • the time domain resource lengths of the first signal and the second signal are associated with a preset Doppler resolution; and/or,
  • the time domain resource interval of the first signal is associated with a preset maximum unambiguous Doppler frequency shift
  • the time domain resource interval of the second signal is associated with the preset maximum unambiguous Doppler frequency shift
  • the time domain resource lengths of the first signal and the second signal are greater than or equal to a first value, and the first value is 1 divided by a value of the preset Doppler resolution;
  • the time domain resource interval of the first signal is less than or equal to a second value, and the time domain resource interval of the second signal is less than or equal to the second value; wherein the second value is 1 divided by a third value, and the third value is equal to 2 times the preset maximum unambiguous Doppler shift, or the third value is 4 times a fourth value, and the fourth value is the absolute value of the product of the preset maximum unambiguous Doppler shift.
  • At least one of the preset Doppler resolution and the preset maximum unambiguous Doppler frequency shift is determined according to perception requirements.
  • the total length of the time domain resources of the first signal and the second signal is less than or equal to a preset channel stabilization time; and/or,
  • the time interval between sending the second signal and sending the first signal is less than or equal to a preset time interval
  • the time domain starting position of the second signal is no later than a preset time position.
  • the first operation includes at least one of the following:
  • the down-conversion and up-conversion include:
  • the first frequency is the same as the second frequency, or the first frequency is different from the second frequency.
  • the difference between the first frequency and the second frequency is indicated by the second device to the first device.
  • the device further comprises:
  • the second receiving module is used to receive a request message sent by the first device, where the request message is used to request the second device to participate in Doppler measurement.
  • the device further comprises:
  • the second sending module is used to send a response message to the first device, where the response message is used to instruct the second device to participate in the Doppler measurement, or the response message is used to indicate at least one of the following: the second device refuses to participate in the Doppler measurement. and Doppler measurement, a reason why the second device refuses to participate in the Doppler measurement;
  • the first sending module sends the second signal to the first device when the response message indicates that the second device participates in Doppler measurement.
  • At least one of the first configuration information of the first signal, the second configuration information of the second signal, and the first operation is pre-agreed;
  • the apparatus before the second device and the first device send the second signal, the apparatus further includes:
  • a third receiving module is configured to receive configuration information sent by the first device, where the configuration information includes at least one of the following:
  • the first configuration information of the first signal the second configuration information of the second signal, and the time domain position relationship configuration, wherein the time domain position relationship configuration is the time domain position relationship configuration between the first signal and the second signal.
  • the first configuration information includes at least one of the following items corresponding to the first signal:
  • Signal configuration identifier waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction;
  • the second configuration information includes at least one of the following items corresponding to the second signal:
  • Signal configuration identifier waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction;
  • the time domain position relationship configuration includes at least one of the following:
  • the time interval between the time domain start position of the first signal and the time domain end position of the second signal is the time interval between the time domain start position of the first signal and the time domain end position of the second signal.
  • the device further comprises:
  • the fourth receiving module is used to receive first indication information sent by the first device, where the first indication information is used to instruct the second device to perform the first operation on the received first signal.
  • the first indication information includes at least one of the following:
  • the crystal oscillator frequency adjustment indication is used to prohibit the second device from adjusting the crystal oscillator frequency of the received first signal; or, the crystal oscillator frequency adjustment indication is used to allow the second device to adjust the crystal oscillator frequency of the received first signal, or, the crystal oscillator frequency adjustment indication is used to instruct the second device to indicate the difference between a first frequency and a second frequency to the first device, the first frequency being the frequency at which the second device down-converts the first signal, and the second frequency being the frequency at which the second device up-converts the first signal;
  • the frequency offset compensation indication is used to prohibit the second device from performing baseband frequency offset compensation on the received first signal. compensation; or, the frequency offset compensation indication is used to allow the second device to perform baseband frequency offset compensation on the received first signal, or, the frequency offset compensation indication is used to instruct the second device to indicate a baseband frequency offset compensation value to the first device;
  • the frequency domain extraction indication is used for frequency domain extraction rules
  • the threshold indication is used to indicate a performance indicator threshold.
  • the device further comprises at least one of the following:
  • a second sending module used to send performance indicator information to the first device, where the performance indicator information is performance indicator information measured for the first signal
  • the third sending module is configured to send second indication information to the second device, where the second indication information is used to indicate at least one of the following:
  • the performance indicator information includes at least one of the following:
  • Signal strength information signal to interference and noise ratio SINR information, SNR information, perceived SNR information, perceived SINR information.
  • the device further comprises:
  • a fifth receiving module configured to, when the performance indicator information does not meet a preset threshold condition, receive, by the second device, third indication information sent by the first device, wherein the third indication information is used to indicate at least one of the following:
  • the Doppler measurement device can improve the Doppler measurement accuracy.
  • the Doppler measurement device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip.
  • the electronic device may be a terminal or a network side device.
  • the Doppler measurement device provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in Figure 8 and achieve the same technical effect. To avoid repetition, it will not be described here.
  • an embodiment of the present application further provides a communication device 1100, including a processor 1101 and a memory 1102, wherein the memory 1102 stores a program or instruction that can be run on the processor 1101.
  • the communication device 1100 is a first device
  • the program or instruction is executed by the processor 1101 to implement the various steps of the Doppler measurement method embodiment on the first device side, and the same technical effect can be achieved.
  • the communication device 1100 is a second device
  • the program or instruction is executed by the processor 1101 to implement the various steps of the Doppler measurement method embodiment on the second device side, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.
  • the embodiment of the present application also provides a communication device, including a processor and a communication interface, wherein the communication interface is used to send a first signal to a second device; receive a second signal sent by the second device, wherein the second signal is a signal obtained by the second device performing a first operation on the first signal; and the processor or the communication interface is used to perform Doppler measurement based on the second signal.
  • This communication device embodiment corresponds to the Doppler measurement method embodiment on the first device side described above, and each implementation process and implementation method of the method embodiment described above can be applied to the communication device embodiment and can achieve the same technical effect.
  • FIG12 is a schematic diagram of the hardware structure of a communication device implementing an embodiment of the present application.
  • the communication device 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 a processor 1210.
  • the communication device 1200 can also include a power supply (such as a battery) for supplying power to each component, and the power supply can be logically connected to the processor 1210 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system.
  • a power supply such as a battery
  • the communication device structure shown in FIG12 does not constitute a limitation on the communication device, and the communication device can include more or fewer components than shown in the figure, or combine certain components, or arrange components differently, which will not be described in detail here.
  • the input unit 1204 may include a graphics processing unit (GPU) 12041 and a microphone 12042, and the graphics processing unit 12041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode.
  • the display unit 1206 may include a display panel 12061, and the display panel 12061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc.
  • the user input unit 1207 includes a touch panel 12071 and at least one of other input devices 12072.
  • the touch panel 12071 is also called a touch screen.
  • the touch panel 12071 may include two parts: a touch detection device and a touch controller.
  • Other input devices 12072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control key, a switch key, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.
  • the RF unit 1201 can transmit the data to the processor 1210 for processing; in addition, the RF unit 1201 can send uplink data to the network side device.
  • the RF unit 1201 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.
  • the memory 1209 can be used to store software programs or instructions and various data.
  • the memory 1209 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc.
  • the memory 1209 may include a volatile memory or a non-volatile memory, or the memory 1209 may include both volatile and non-volatile memories.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory.
  • the volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM).
  • the memory 1209 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.
  • the processor 1210 may include one or more processing units; optionally, the processor 1210 integrates an application processor and a debugger.
  • the modem processor includes a baseband processor, a modem processor, and a control processor.
  • the application processor mainly processes operations related to the operating system, the user interface, and the application program, and the modem processor mainly processes wireless communication signals. It is understandable that the modem processor may not be integrated into the processor 1210.
  • the above communication device is a first device, and the first device is taken as a terminal for example:
  • the radio frequency unit 1201 is configured to send a first signal to a second device; and receive a second signal sent by the second device, wherein the second signal is a signal obtained by the second device performing a first operation on the first signal;
  • the radio frequency unit 1201 or the processor 1210 is configured to perform Doppler measurement based on the second signal.
  • the time domain resource format of the first signal and the second signal is the same.
  • the same time domain resource format includes at least one of the following:
  • time domain resource lengths and time domain resource intervals are the same;
  • the time domain resource interval of the first signal refers to the interval between two adjacent time domain resource units corresponding to the first signal
  • the time domain resource interval of the second signal refers to the interval between two adjacent time domain resource units corresponding to the second signal.
  • the time domain resource lengths of the first signal and the second signal are associated with a preset Doppler resolution; and/or,
  • the time domain resource interval of the first signal is associated with a preset maximum unambiguous Doppler frequency shift
  • the time domain resource interval of the second signal is associated with the preset maximum unambiguous Doppler frequency shift
  • the time domain resource lengths of the first signal and the second signal are greater than or equal to a first value, and the first value is 1 divided by a value of the preset Doppler resolution;
  • the time domain resource interval of the first signal is less than or equal to a second value, and the time domain resource interval of the second signal is less than or equal to the second value; wherein the second value is 1 divided by a third value, and the third value is equal to 2 times the preset maximum unambiguous Doppler shift, or the third value is 4 times a fourth value, and the fourth value is the absolute value of the product of the preset maximum unambiguous Doppler shift.
  • At least one of the preset Doppler resolution and the preset maximum unambiguous Doppler frequency shift is determined according to perception requirements.
  • the total length of the time domain resources of the first signal and the second signal is less than or equal to a preset channel stabilization time; and/or,
  • the time interval between sending the second signal and sending the first signal is less than or equal to a preset time interval
  • the time domain starting position of the second signal is no later than a preset time position.
  • the first operation includes at least one of the following:
  • the down-conversion and up-conversion include:
  • the first frequency is the same as the second frequency, or the first frequency is different from the second frequency.
  • the difference between the first frequency and the second frequency is indicated by the second device to the first device.
  • the radio frequency unit 1201 is further configured to:
  • a request message is sent to the second device, where the request message is used to request the second device to participate in Doppler measurement.
  • the radio frequency unit 1201 is further configured to:
  • the response message is used to indicate that the second device participates in Doppler measurement, or the response message is used to indicate at least one of the following: that the second device refuses to participate in Doppler measurement and a reason why the second device refuses to participate in Doppler measurement;
  • the radio frequency unit 1201 receives the second signal sent by the second device.
  • At least one of the first configuration information of the first signal, the second configuration information of the second signal, and the first operation is pre-agreed;
  • the radio frequency unit 1201 is further configured to:
  • configuration information includes at least one of the following:
  • the first configuration information of the first signal the second configuration information of the second signal, and the time domain position relationship configuration, wherein the time domain position relationship configuration is the time domain position relationship configuration between the first signal and the second signal.
  • the first configuration information includes at least one of the following items corresponding to the first signal:
  • Signal configuration identifier waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction;
  • the second configuration information includes at least one of the following items corresponding to the second signal:
  • Signal configuration identifier waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction;
  • the time domain position relationship configuration includes at least one of the following:
  • the time interval between the time domain start position of the first signal and the time domain end position of the second signal is the time interval between the time domain start position of the first signal and the time domain end position of the second signal.
  • the radio frequency unit 1201 is further configured to:
  • the first indication information includes at least one of the following:
  • the crystal oscillator frequency adjustment indication is used to prohibit the second device from adjusting the crystal oscillator frequency of the received first signal; or, the crystal oscillator frequency adjustment indication is used to allow the second device to adjust the crystal oscillator frequency of the received first signal, or, the crystal oscillator frequency adjustment indication is used to instruct the second device to indicate the difference between a first frequency and a second frequency to the first device, the first frequency being the frequency at which the second device down-converts the first signal, and the second frequency being the frequency at which the second device up-converts the first signal;
  • the frequency offset compensation indication is used to prohibit the second device from performing baseband frequency offset compensation on the received first signal; or, the frequency offset compensation indication is used to allow the second device to perform baseband frequency offset compensation on the received first signal, or, the frequency offset compensation indication is used to instruct the second device to indicate a baseband frequency offset compensation value to the first device;
  • the frequency domain extraction indication is used for frequency domain extraction rules
  • the threshold indication is used to indicate a performance indicator threshold.
  • the radio frequency unit 1201 is further configured to:
  • performance indicator information sent by the second device, where the performance indicator information is performance indicator information measured for the first signal
  • the performance indicator information includes at least one of the following:
  • Signal strength information signal to interference and noise ratio SINR information, signal to noise ratio SNR information, perceived SNR information, perceived SINR information.
  • the radio frequency unit 1201 is further configured to:
  • third indication information is sent to the second device, where the third indication information is used to indicate at least one of the following:
  • the radio frequency unit 1201 or the processor 1210 is further configured to:
  • the first signal is an uplink signal
  • the second signal is a downlink signal
  • the first signal is a downlink signal
  • the second signal is an uplink signal
  • the first signal includes at least one of the following:
  • Reference signal communication data signal, synchronization signal, perception signal, and synaesthesia integration signal.
  • the above communication equipment can improve the Doppler measurement accuracy.
  • the embodiment of the present application also provides a communication device, including a processor and a communication interface, wherein the communication interface is used to receive a first signal sent by a first device; the communication interface or the processor is used to perform a first operation on the first signal to obtain a second signal; the communication interface is also used to send the second signal to the first device.
  • the communication device embodiment corresponds to the Doppler measurement method embodiment on the second device side, and each implementation process and implementation method of the method embodiment can be applied to the communication device embodiment and can achieve the same technical effect.
  • the communication device 1300 includes: an antenna 1301, a radio frequency device 1302, a baseband device 1303, a processor 1304 and a memory 1305.
  • the antenna 1301 is connected to the radio frequency device 1302.
  • the radio frequency device 1302 receives information through the antenna 1301 and sends the received information to the baseband device 1303 for processing.
  • the baseband device 1303 processes the information to be sent and sends it to the radio frequency device 1302.
  • the radio frequency device 1302 processes the received information and sends it out through the antenna 1301.
  • the method executed by the communication device in the above embodiment may be implemented in the baseband device 1303, which includes a baseband processor.
  • the baseband device 1303 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 13, one of which is, for example, a baseband processor, which is connected to the memory 1305 through a bus interface to call the program in the memory 1305 and execute the network device operations shown in the above method embodiment.
  • the communication device may also include a network interface 1306, which is, for example, a common public radio interface (CPRI).
  • a network interface 1306, which is, for example, a common public radio interface (CPRI).
  • CPRI common public radio interface
  • the communication device 1300 of the embodiment of the present application also includes: instructions or programs stored in the memory 1305 and executable on the processor 1304.
  • the processor 1304 calls the instructions or programs in the memory 1305 to execute the methods executed by the modules shown in Figure 10 and achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • the above-mentioned communication device is a second device, and an example is given in which the second device is a wireless access network device.
  • the radio frequency device 1302 is used to receive a first signal sent by a first device
  • the radio frequency device 1302 or the processor 1304 is configured to perform a first operation on the first signal to obtain a second signal;
  • the radio frequency device 1302 is further configured to send the second signal to the first device.
  • the time domain resource format of the first signal and the second signal is the same.
  • the same time domain resource format includes at least one of the following:
  • time domain resource lengths and time domain resource intervals are the same;
  • the time domain resource interval of the first signal refers to the interval between two adjacent time domain resource units corresponding to the first signal
  • the time domain resource interval of the second signal refers to the interval between two adjacent time domain resource units corresponding to the second signal.
  • the time domain resource lengths of the first signal and the second signal are associated with a preset Doppler resolution; and/or,
  • the time domain resource interval of the first signal is associated with a preset maximum unambiguous Doppler frequency shift
  • the time domain resource interval of the second signal is associated with the preset maximum unambiguous Doppler frequency shift
  • the time domain resource lengths of the first signal and the second signal are greater than or equal to a first value, and the first value is 1 divided by a value of the preset Doppler resolution;
  • the time domain resource interval of the first signal is less than or equal to a second value, and the time domain resource interval of the second signal is less than or equal to the second value; wherein the second value is 1 divided by a third value, and the third value is equal to 2 times the preset maximum unambiguous Doppler shift, or the third value is 4 times a fourth value, and the fourth value is the absolute value of the product of the preset maximum unambiguous Doppler shift.
  • At least one of the preset Doppler resolution and the preset maximum unambiguous Doppler frequency shift is determined according to perception requirements.
  • the total length of the time domain resources of the first signal and the second signal is less than or equal to a preset channel stabilization time; and/or,
  • the time interval between sending the second signal and sending the first signal is less than or equal to a preset time interval
  • the time domain starting position of the second signal is no later than a preset time position.
  • the first operation includes at least one of the following:
  • the down-conversion and up-conversion include:
  • the first frequency is the same as the second frequency, or the first frequency is different from the second frequency.
  • the difference between the first frequency and the second frequency is indicated by the second device to the first device.
  • the radio frequency device 1302 is further used to:
  • a request message sent by the first device is received, where the request message is used to request a second device to participate in Doppler measurement.
  • the radio frequency device 1302 is further used to:
  • the response message is used to instruct the second device to participate in Doppler measurement, or the response message is used to indicate at least one of the following: the second device refuses to participate in the Doppler measurement and the reason why the second device refuses to participate in the Doppler measurement;
  • the radio frequency device 1302 sends the second signal to the first device when the response message indicates that the second device participates in Doppler measurement.
  • At least one of the first configuration information of the first signal, the second configuration information of the second signal, and the first operation is pre-agreed;
  • the radio frequency device 1302 is further used for:
  • the second device receives configuration information sent by the first device, where the configuration information includes at least one of the following:
  • the time domain position relationship configuration is a time domain position relationship configuration between the first signal and the second signal.
  • the first configuration information includes at least one of the following items corresponding to the first signal:
  • Signal configuration identifier waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction;
  • the second configuration information includes at least one of the following items corresponding to the second signal:
  • Signal configuration identifier waveform, subcarrier spacing, guard interval, frequency domain starting position, frequency domain resource length, frequency domain resource interval, time domain starting position, time domain resource length, time domain resource interval, signal power, sequence information, signal direction;
  • the time domain position relationship configuration includes at least one of the following:
  • the time interval between the time domain start position of the first signal and the time domain end position of the second signal is the time interval between the time domain start position of the first signal and the time domain end position of the second signal.
  • the radio frequency device 1302 is further used to:
  • the second device receives first indication information sent by the first device, where the first indication information is used to instruct the second device to perform the first operation on the received first signal.
  • the first indication information includes at least one of the following:
  • the crystal oscillator frequency adjustment indication is used to prohibit the second device from adjusting the crystal oscillator frequency of the received first signal; or, the crystal oscillator frequency adjustment indication is used to allow the second device to adjust the crystal oscillator frequency of the received first signal, or, the crystal oscillator frequency adjustment indication is used to instruct the second device to indicate the difference between a first frequency and a second frequency to the first device, the first frequency being the frequency at which the second device down-converts the first signal, and the second frequency being the frequency at which the second device up-converts the first signal;
  • the frequency offset compensation indication is used to prohibit the second device from performing baseband frequency offset compensation on the received first signal; or, the frequency offset compensation indication is used to allow the second device to perform baseband frequency offset compensation on the received first signal, or, the frequency offset compensation indication is used to instruct the second device to indicate a baseband frequency offset compensation value to the first device;
  • the frequency domain extraction indication is used for frequency domain extraction rules
  • the threshold indication is used to indicate a performance indicator threshold.
  • the radio frequency device 1302 is further used for at least one of the following:
  • the performance indicator information includes at least one of the following:
  • Signal strength information signal to interference and noise ratio SINR information, SNR information, perceived SNR information, perceived SINR information.
  • the radio frequency device 1302 is further used for:
  • the above communication equipment can improve the Doppler measurement accuracy.
  • the embodiment of the present application further provides a readable storage medium, on which a program or instruction is stored.
  • a program or instruction is stored on which a program or instruction is stored.
  • 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.
  • 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 Doppler measurement method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • 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.
  • 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 Doppler measurement method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • An embodiment of the present application also provides an information transmission system, including: a first device and a second device, wherein the first device can be used to execute the steps of the Doppler measurement method on the first device side provided in the embodiment of the present application, and the second device can be used to execute the steps of the Doppler measurement method on the second device side provided in the embodiment of the present application.
  • the technical solution of the present application can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.
  • a storage medium such as ROM/RAM, a magnetic disk, or an optical disk
  • a terminal which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.

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Abstract

本申请公开了一种多普勒测量方法、装置及通信设备,属于通信技术领域,本申请实施例的多普勒测量方法包括:第一设备向第二设备发送第一信号;所述第一设备接收所述第二设备发送的第二信号,其中,所述第二信号为所述第二设备针对所述第一信号执行第一操作得到的信号;所述第一设备基于所述第二信号进行多普勒测量。

Description

多普勒测量方法、装置及通信设备
相关申请的交叉引用
本申请主张在2022年10月10日在中国提交的中国专利申请No.202211237042.8的优先权,其全部内容通过引用包含于此。
技术领域
本申请属于通信技术领域,具体涉及一种多普勒测量方法、装置及通信设备。
背景技术
多普勒测量是通信设备中一种常见的测量,目前测量方式具体为发送设备向接收设备发送信号,接收设备基于接收到的信号进行多普勒测量,这样由于发送设备和接收设备之间可能会存在时钟偏差,进而导致多普勒测量结果准确性比较差。
发明内容
本申请实施例提供一种多普勒测量方法、装置及通信设备,能够解决多普勒测量结果准确性比较差的问题。
第一方面,一种多普勒测量方法,由第一设备执行,包括:
第一设备向第二设备发送第一信号;
所述第一设备接收所述第二设备发送的第二信号,其中,所述第二信号为所述第二设备针对所述第一信号执行第一操作得到的信号;
所述第一设备基于所述第二信号进行多普勒测量。
第二方面,提供了一种多普勒测量方法,由第二设备执行,包括:
第二设备接收第一设备发送的第一信号;
所述第二设备针对所述第一信号执行第一操作得到的第二信号;
所述第二设备向所述第一设备发送所述第二信号。
第三方面,提供了一种多普勒测量装置,包括:
第一发送模块,用于向第二设备发送第一信号;
第一接收模块,用于接收所述第二设备发送的第二信号,其中,所述第二信号为所述第二设备针对所述第一信号执行第一操作得到的信号;
测量模块,用于基于所述第二信号进行多普勒测量。
第四方面,提供了一种多普勒测量装置,包括:
第一接收模块,用于接收第一设备发送的第一信号;
执行模块,用于针对所述第一信号执行第一操作得到的第二信号;
第一发送模块,用于向所述第一设备发送所述第二信号。
第五方面,提供了一种通信设备,该终端包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如本申请实施例提供的第一设备侧的多普勒测量方法的步骤。
第六方面,提供了一种通信设备,包括处理器及通信接口,其中,所述通信接口用于向第二设备发送第一信号;接收所述第二设备发送的第二信号,其中,所述第二信号为所述第二设备针对所述第一信号执行第一操作得到的信号;所述处理器或者通信接口用于基于所述第二信号进行多普勒测量。
第七方面,提供了一种通信设备,该通信设备包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如本申请实施例提供的第二设备侧的多普勒测量方法的步骤。
第八方面,提供了一种通信设备,包括处理器及通信接口,其中,所述通信接口用于接收第一设备发送的第一信号;所述通信接口或者处理器用于针对所述第一信号执行第一操作得到的第二信号;所述通信接口还用于向第一设备发送所述第二信号。
第九方面,提供了一种多普勒测量系统,包括:第一设备及第二设备,所述第一设备可用于执行如本申请实施例提供的第一设备侧的多普勒测量方法的步骤,所述第二设备可用于执行如本申请实施例提供的第二设备侧的多普勒测量方法的步骤。
第十方面,提供了一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如本申请实施例提供的第一设备侧的多普勒测量方法的步骤,或者实现如本申请实施例提供的第二设备侧的多普勒测量方法的步骤。
第十一方面,提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如本申请实施例提供的第一设备侧的多普勒测量方法,或实现如本申请实施例提供的第二设备侧的多普勒测量方法。
第十二方面,提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现如本申请实施例提供的第一设备侧的多普勒测量方法的步骤,或所述计算机程序/程序产品被至少一个处理器执行以实现如本申请实施例提供的第二设备侧的多普勒测量方法的步骤。
在本申请实施例中,第一设备向第二设备发送第一信号;所述第一设备接收所述第二设备发送的第二信号,其中,所述第二信号为所述第二设备针对所述第一信号执行第一操作得到的信号;所述第一设备基于所述第二信号进行多普勒测量。这样由于第二信号是对第一信号执行第一操作得到的信号,从而实现进行多普勒测量的信号的发送端和接收端为同一个设备,进而可以避免发送端和接收端为不同设备存在时钟偏差问题,达到提高多普勒测量结果准确性的效果。
附图说明
图1是本申请实施例可应用的一种无线通信系统的框图;
图2是本申请实施例提供的一种感知测量的场景示意图;
图3是本申请实施例提供的一种多普勒测量方法的流程图;
图4是本申请实施例提供的一种多普勒测量方法的示意图;
图5是本申请实施例提供的一种信号传输的示意图;
图6是本申请实施例提供的另一种信号传输的示意图;
图7是本申请实施例提供的一种SNR计算的示意图;
图8是本申请实施例提供的另一种多普勒测量方法的流程图;
图9是本申请实施例提供的一种多普勒测量装置的结构图;
图10是本申请实施例提供的一种多普勒测量装置的结构图;
图11是本申请实施例提供的一种通信设备的结构图;
图12是本申请实施例提供的另一种通信设备的结构图;
图13是本申请实施例提供的另一种通信设备的结构图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员所获得的所有其他实施例,都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换,以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施,且“第一”、“第二”所区别的对象通常为一类,并不限定对象的个数,例如第一对象可以是一个,也可以是多个。此外,说明书以及权利要求中“和/或”表示所连接对象的至少其中之一,字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是,本申请实施例所描述的技术不限于长期演进型(Long Term Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)系统,还可用于其他无线通信系统,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency Division Multiple Access,SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用,所描述的技术既可用于以上提及的系统和无线电技术,也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio,NR)系统,并且在以下大部分描述中使用NR术语,但是这些技术也可应用于NR系统应用以外的应用,如第6代(6th Generation,6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括终端11和网络侧设备12。其中,终端11可以是手机、平板电脑(Tablet Personal Computer)、膝 上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant,PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer,UMPC)、移动上网装置(Mobile Internet Device,MID)、增强现实(augmented reality,AR)/虚拟现实(virtual reality,VR)设备、机器人、可穿戴式设备(Wearable Device)、车载设备(Vehicle User Equipment,VUE)、行人终端(Pedestrian User Equipment,PUE)、智能家居(具有无线通信功能的家居设备,如冰箱、电视、洗衣机或者家具等)、游戏机、个人计算机(personal computer,PC)、柜员机或者自助机等终端侧设备,可穿戴式设备包括:智能手表、智能手环、智能耳机、智能眼镜、智能首饰(智能手镯、智能手链、智能戒指、智能项链、智能脚镯、智能脚链等)、智能腕带、智能服装等。需要说明的是,在本申请实施例并不限定终端11的具体类型。网络侧设备12可以包括接入网设备或核心网设备,其中,接入网设备也可以称为无线接入网设备、无线接入网(Radio Access Network,RAN)、无线接入网功能或无线接入网单元。接入网设备可以包括基站、无线局域网(Wireless Local Area Network,WLAN)接入点或WiFi节点等,基站可被称为节点B、演进节点B(Evolved Node B,eNB)、接入点、基收发机站(Base Transceiver Station,BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set,BSS)、扩展服务集(Extended Service Set,ESS)、家用B节点、家用演进型B节点、发送接收点(Transmission Reception Point,TRP)或所述领域中其他某个合适的术语,只要达到相同的技术效果,所述基站不限于特定技术词汇,需要说明的是,在本申请实施例中仅以NR系统中的基站为例进行介绍,并不限定基站的具体类型。核心网设备可以包含但不限于如下至少一项:核心网节点、核心网功能、移动管理实体(Mobility Management Entity,MME)、接入移动管理功能(Access and Mobility Management Function,AMF)、会话管理功能(Session Management Function,SMF)、用户平面功能(User Plane Function,UPF)、策略控制功能(Policy Control Function,PCF)、策略与计费规则功能单元(Policy and Charging Rules Function,PCRF)、边缘应用服务发现功能(Edge Application Server Discovery Function,EASDF)、统一数据管理(Unified Data Management,UDM),统一数据仓储(Unified Data Repository,UDR)、归属用户服务器(Home Subscriber Server,HSS)、集中式网络配置(Centralized network configuration,CNC)、网络存储功能(Network Repository Function,NRF),网络开放功能(Network Exposure Function,NEF)、本地NEF(Local NEF,或L-NEF)、绑定支持功能(Binding Support Function,BSF)、应用功能(Application Function,AF)等。需要说明的是,在本申请实施例中仅以NR系统中的核心网设备为例进行介绍,并不限定核心网设备的具体类型。
本申请实施例中,网络侧设备和终端可以具备感知能力,能够通过无线信号的发送和接收,来感知目标物体的方位、距离、速度等信息,或者对目标物体、事件或环境等进行检测、跟踪、识别、成像等。一些感知功能与应用场景如表1所示:
表1

需要说明的是,上述表1所示的感知类别仅是一个举例说明,本申请实施例中对感知测量的类别并不作限定。
另外,本申请实施例可以应用于通信感知一体化场景,其中,通信感知一体化是指在同一系统中通过频谱共享与硬件共享,实现通信和感知功能一体化设计,系统在进行信息传递的同时,能够感知方位、距离、速度等信息,对目标设备或事件进行检测、跟踪、识别,通信系统与感知系统相辅相成,实现整体性能上的提升并带来更好的服务体验。
例如:通信与雷达的一体化属于典型的通信感知一体化(通信感知融合)应用,且通信与雷达系统融合能够带来许多优势,例如节约成本、减小尺寸、降低功耗、提升频谱效率、减小互干扰等,从而提升系统整体性能。
本申请实施例中,根据感知信号发送节点和接收节点的不同,可以包括但不限于图2所示的6种感知链路。需要说明的是,图2中每种感知链路都是以一个发送节点和一个接收节点进行举例说明,实际系统中,根据不同的感知需求可以选择不同的感知链路,每种感知链路的发送节点和接收节点可以有一个或多个,且实际感知系统可以包括多种不同的感知链路。且图2中的感知目标以人和车作为例子,且假设人和车均没有携带或安装信号收/发设备,实际场景的感知目标将更加丰富。
感知链路1:基站自发自收感知。该方式下基站发送感知信号,并通过接收该感知信号的回波来获得感知结果;
感知链路2:基站间空口感知。该方式下基站2接收基站1发送的感知信号,获得感知结果。
感知链路3:上行空口感知。该方式下基站接收终端发送的感知信号,获得感知结果。
感知链路4:下行空口感知。该方式下终端接收基站发送的感知信号,获得感知结果。
感知链路5:终端自发自收感知。该方式下终端发送感知信号,并通过接收该感知信号的回波来获得感知结果。
感知链路6:终端间旁链路(Sidelink)感知。例如,终端2接收终端1发送的感知信号,获得感知结果,或者终端1接收终端2发送的感知信号,获得感知结果。
下面结合附图,通过一些实施例及其应用场景对本申请实施例提供的一种多普勒测量 方法、装置及通信设备进行详细地说明。
请参见图3,图3是本申请实施例提供的一种多普勒测量方法的流程图,如图3所示,包括以下步骤:
步骤301、第一设备向第二设备发送第一信号。
其中,上述第一设备为终端或者网络侧设备,在上述第一设备为终端的情况下,上述第二设备可以为网络侧设备或者终端,在上述第一设备为网络侧设备的情况下,上述第二设备可以为网络侧设备或者终端。
上述第一信号可以包括如下至少一项:
参考信号、通信数据信号、同步信号、感知信号、通感一体化信号。
上述参考信号可以是解调参考信号(Demodulation Reference Signal,DMRS)、信道状态信息参考信号(Channel State Information-Reference Signal,CSI-RS)或定位参考信号(Positioning Reference Signal,PRS)等参考信号,上述同步信号可以是主同步信号(Primary Synchronization Signal,PSS)或辅同步信号(Secondary Synchronization Signal,SSS)等同步信号,上述感知信号可以线性调频信号(Chirp)或者其他用于感知测量的信号,上述通感一体化信号可以是同时用于感知和通信的信号。
步骤302、第一设备接收所述第二设备发送的第二信号,其中,所述第二信号为所述第二设备针对所述第一信号执行第一操作得到的信号。
在一些实施方式中,上述第一信号为上行信号,上述第二信号为下行信号,例如:第一设备是终端,第二设备是网络侧设备,终端通过上行时隙发送第一信号,网络侧设备通过下行时隙发送第二信号。
在一些实施方式中,上述第一信号为下行信号,上述第二信号为上行信号,例如:第一设备是网络侧设备,第二设备是终端,网络侧设备通过下行时隙发送第一信号,终端通过上行时隙发送第二信号。
上述第一操作可以是,第一设备和第二设备预先约定的操作,或者上述第一操作可以是协议中定义的操作,或者,上述第一操作可以是上述第二设备决定的操作。
在一些实施方式中,上述第一操作包括但不限于变频、补偿和抽样等中的至少一项。
上述第一设备接收第二设备逆态度的第二信号可以是,第二设备接收到第一信号后,将接收到的信号反馈给第一设备。具体为,第二设备接收到上述第一信号后,对上述第一信号执行上述第一操作,并向第一设备发送上述第二信号。
步骤303、第一设备基于所述第二信号进行多普勒测量。
上述第一设备基于第二信号进行多普勒测量可以是,第一设备对第二信号检测时域维度的相位变化,以得到多普勒测量结果,例如:第一设备对上述第二信号执行时域快速傅里叶变换(Fast Fourier Transform,FFT),以得到多普勒测量结果。
需要说明的是,由于上述第一设备发送第一信号,并接收第二信号,因此,本申请实施例中的多普勒测量可以称作往返多普勒(Round Trip Doppler,RTD)测量,上述第一信 号和第二信号可以称作RTD测量信号。
本申请实施例中,通过上述步骤实现可以第二信号是对第一信号执行第一操作得到的信号,从而实现进行多普勒测量的信号的发送端和接收端为同一个设备,进而可以避免发送端和接收端为不同设备存在时钟偏差问题,达到提高多普勒测量结果准确性的效果。具体可以是,经过第二设备将第二信号反馈给第一设备后,信号中收发时钟频率偏差的影响被抵消掉,此时第一设备进行多普勒测量不受到收发时钟频率偏差的影响,进而提高多普勒测量结果准确性的效果。
作为一种可选的实施方式,所述第一信号和所述第二信号的时域资源格式相同。
其中,上述时域资源格式相同可以包括如下至少一项:
时域资源长度相同、时域资源间隔相同;
其中,所述第一信号的时域资源间隔是指所述第一信号对应的相邻两个时域资源单元之间的间隔,所述第二信号的时域资源间隔是指所述第二信号对应的相邻两个时域资源单元之间的间隔。
上述时域资源间隔可以是指信号对应的多个时域资源单元中相邻的时域资源单元之间的间隔,例如:第一信号的时域资源对应多个正交频分复用(Orthogonal frequency division multiplex,OFDM)符号,即第一信号对应多个时机(occasion),时域资源间隔指相邻OFDM符号间的时间间隔。
上述时域资源单元可以是符号、子时隙或者时隙等时域资源单元。
该实施方式中,由于第一信号和所述第二信号的时域资源格式相同,从而使得第一信号和第二信号具有相同的多普勒测量性能,进一步提高多普勒测量准确性。
可选的,所述第一信号和所述第二信号的时域资源长度与预设多普勒分辨率关联。
其中,上述第一信号和所述第二信号的时域资源长度与预设多普勒分辨率关联可以是,第一信号的时域资源长度与预设多普勒分辨率关联,且第二信号的时域资源长度与预设多普勒分辨率关联。
上述时域资源长度与预设多普勒分辨率关联可以是,时域资源长度由上述预设多普勒分辨率决定,例如:根据协议约定的时域资源长度与预设多普勒分辨率的映射关系确定上述时域资源长度。
该实施方式中,由于第一信号和所述第二信号的时域资源长度与预设多普勒分辨率关联,这样可以使得基于第二信号测量得到的多普勒测量结果满足感知需求中对多普勒分辨率的要求,或者使得根据多普勒测量结果计算的感知结果的精度满足要求。
可选的,所述第一信号和所述第二信号的时域资源长度大于或者等于第一值,所述第一值为1除以所述预设多普勒分辨率的取值。
例如:第一信号与第二信号的时域资源长度与预设多普勒分辨率关联满足如下关系:
T≥1/Δfd,其中,T表示时域资源长度,Δfd表示预设多普勒分辨率。
可选的,所述第一信号的时域资源间隔与预设最大无模糊多普勒频移关联,所述第二 信号的时域资源间隔与所述预设最大无模糊多普勒频移(或者称作预设最大无模糊多普勒)关联。
上述第一信号的时域资源间隔与预设最大无模糊多普勒频移关联可以是,第一信号的时域资源间隔由上述预设最大无模糊多普勒频移决定,例如:根据协议约定的时域资源间隔与预设最大无模糊多普勒频移的映射关系确定上述时域资源间隔。第二信号的时域资源间隔同理。
该实施方式中,由于第一信号和所述第二信号的时域资源间隔与预设最大无模糊多普勒频移关联,这样可以避免第一信号和第二信号发生多普勒模糊,进一步提高多普勒测量准确性。
可选的,所述第一信号的时域资源间隔小于或者等于第二值,所述第二信号的时域资源间隔小于或者等于所述第二值;其中,所述第二值为1除以第三值的取值,所述第三值等于2倍所述预设最大无模糊多普勒频移,或者,所述第三值为4倍第四值,所述第四值为所述预设最大无模糊多普勒频移的积的绝对值。
在一些实施方式中,在不考虑信道中目标运动速度方向,上述时域资源间隔可以满足如下关系:
ΔT≤1/(2·fd max);
在一些实施方式中,在考虑信道中目标运动速度方向,上述时域资源间隔可以满足如下关系:
ΔT≤1/(2|2·fd max|),或者,ΔT≤1/(|4·fd max|);
其中,ΔT为时域资源间隔,fd max为预设最大无模糊多普勒频移。
在一些实施方式中,接收端多普勒的计算需要基于信号时域相位变化,即2πfdΔT=θ,其中θ为ΔT时间感知信号时域相位变化,在不考虑速度方向时,为了保证不发生多普勒模糊,需要满足θ=2πfdΔT≤2π,即最大不模糊多普勒频移与信号的时域资源间隔关系为ΔT≤1/(fd max);考虑速度方向时,为保证不发生多普勒模糊,需要满足θ=|2πfdΔT|≤π,即最大不模糊多普勒频移与信号的时域资源间隔关系为ΔT≤1/(2|fd max|)。由于往返多普勒测量中,信道多普勒叠加两次,因此上述第一信号和第二信号的时域资源格式要求中最大多普勒需要乘2。
该实施方式中,由于第一信号的时域资源间隔小于或者等于上述第二值,由于第二信号的时域资源间隔与第一信号的时域资源间隔相同,这样可以保证第一信号和第二信号发生多普勒模糊,进一步提高多普勒测量准确性。
可选的,所述预设多普勒分辨率和所述预设最大无模糊多普勒频移中的至少一项是根据感知需求确定。
其中,上述感知需求可以是第一设备获取的。
在一些实施方式中,上述感知需求信息可以包括以下一项:
感知业务,感知业务可以是按类型划分或具体到某项业务,例如:环境重构、呼吸或 心跳检测、定位或轨迹追踪、动作识别、天气监测、雷达测距、雷达测速、雷达测角等;
感知目标区域,感知目标区域可以是指感知对象可能存在位置区域,或者,感知目标区域是需要进行成像的位置区域,或者,感知目标区域是需要环境重构的位置区域;
感知对象类型,感知对象类型可以是针对感知对象可能的运动特性对感知对象进行分类,每个感知对象类型中包含了典型感知对象的运动速度、运动加速度、典型雷达截面积(Radar Cross Section,RCS)等信息;
感知服务质量(Quality of Service,QoS),感知QoS可以是对感知目标区域或感知对象进行感知的性能指标,可以包括以下至少一项:
感知分辨率,感知分辨率进一步可分为:距离/时延分辨率、角度分辨率、速度/多普勒分辨率、成像分辨率等;
感知精度,感知精度进一步可分为:距离/时延精度、角度精度、速度/多普勒精度、定位精度等;
感知范围,感知范围进一步可分为:距离/时延范围、速度/多普勒范围、角度范围、成像范围等;
感知时延,感知时延可以是从感知信号发送到获得感知结果的时间间隔,或,从感知需求发起到获取感知结果的时间间隔;
感知更新速率,感知更新速率可以是相邻两次执行感知并获得感知结果的时间间隔;
检测概率,检测概率可以是在感知对象存在的情况下被正确检测出来的概率;
虚警概率,虚警概率可以是在感知对象不存在的情况下错误检测出感知目标的概率;
可感知的最大目标个数。
该实施方式中,由于预设多普勒分辨率和预设最大无模糊多普勒频移中的至少一项是根据感知需求确定,这样可以使得第一信号和第二信号的时域资源长度和时域资源间隔是与感知需求对应的,从而使得多普勒测量满足感知需求,进而提高多普勒测量性能。
需要说明的是,在一些实施方式中,上述预设多普勒分辨率和预设最大无模糊多普勒频移中的至少一项也可以是协议约定的或者网络侧配置的。
可选的,所述第一信号和所述第二信号的时域资源总长度(TRTD)小于或者等于预设信道稳定时间;和/或,
所述第二信号与所述第一信号的发送时间间隔小于或者等于预设时间间隔;和/或
所述第二信号的时域起始位置不晚于预设时间位置。
上述预设信道稳定时间可以是信道多普勒近似不变的时间。
上述预设信道稳定时间、预设时间间隔和预设时间位置可以是协议约定或者网络侧配置的。
由于第一信号和第二信号的时域资源总长度小于或者等于预设信道稳定时间,从而可以使得在多普勒测量过程中信道相对稳定,以进一步提高多普勒测量准确性。
上述第二信号与第一信号的发送时间间隔可以是,第一信号的时域起始位置与第二信 号时域起始位置的时间间隔。
由于第二信号与所述第一信号的发送时间间隔小于或者等于预设时间间隔,从而可以避免第二信号与第一信号的时域资源总长度过大,例如:使得第一信号和第二信号的时域资源总长度小于或者等于预设信道稳定时间,以进一步提高多普勒测量准确性。
由于上述第二信号的时域起始位置不晚于预设时间位置,从而可以避免第二信号与第一信号的时域资源总长度过大,例如:使得第一信号和第二信号的时域资源总长度小于或者等于预设信道稳定时间,以进一步提高多普勒测量准确性。
在一些实施方式中,上述第一信号和第二信号的时域资源总长度,或第二信号的时域起始位置,或第二信号与所述第一信号的发送时间间隔可以是约定好的,也可以是第一设备发送给第二设备的。
作为一种可选的实施方式,所述第一操作包括如下至少一项:
下变频和上变频;
基带频偏补偿;
频域抽样。
上述下变频和上变频可以是,第二设备对接收到的信号进行下变频,并将下变频后的信号进行上变频,从而可以向第一设备发送上变频后的第二信号。
在一个实施方式中,上述第一设备发送第一信号s(t)经过上变频后表示为:
其中,s(t)表示第一信号,ft表示第一设备载波频率,t表示时域采样点;
第二设备接收到的经过下变频后的第一信号表示为:
其中,H表示信道中的H个反射体,h表示第h个反射体,bh为幅度衰减因子,s(t-τh)表示经过τh延时后的第一信号,τh表示第h个反射体对应的时延,fD,h表示信道中第h个反射体对应的多普勒频移信息,fr表示第二设备载波频率,表示随机相位旋转,表示白高斯噪声;
第二设备将r(t)进行上变频得到r1(t),即第二信号发送给第一设备:
第一设备接收r1(t)并进行下变频得到:
其中,s(t-(τ'h))表示经过τ'h延时后的第一信号,τ'h表示第一设备发送第一信号到第二设备过程中第h个反射体对应的时延以及第二设备发送第二信号到第一设备过程中第h个反射体对应的时延之和。
第一设备基于r2(t)估计多普勒信息。
需要说明的是,上述多公式仅是对下变频和上变频一种举例说明,本申请实施例中对第一信号和第二信号的具体内容不作限定。
该实施方式中,通过上述下变频和上变频,可以更好地消除信号收发时钟频率偏差的影响,进一步提高多普勒测量结果准确性。
上述基带频偏补偿可以是,基带频偏估计与补偿,即基于基带频偏估计进行基带频偏补偿。
该实施方式中,由于对第一信号进行基带频偏补偿,这样在避免发送端和接收端为不同设备存在时钟偏差问题时,还可以提高第二信号的基带频偏的准确性,进一步提高多普勒测量结果准确性。
上述频域抽样可以是,频域进行信号抽取,从而减小第二信号传输开销。
需要说明的是,本申请实施例中,第一操作包括下变频和上变频、基带频偏补偿、频域抽样中的任一项或者多项时,都可以避免发送端和接收端为不同设备存在时钟偏差问题,因为,不管是哪种第一操作,都会因为第二信号是对第一信号执行第一操作得到的信号,而实现进行多普勒测量的信号的发送端和接收端为同一个设备,进而可以避免发送端和接收端为不同设备存在时钟偏差问题,达到提高多普勒测量结果准确性的效果。
可选的,所述下变频和上变频,包括:
基于第一频率进行下变频和基于第二频率进行上变频;
其中,所述第一频率和所述第二频率相同,或者,所述第一频率和所述第二频率不同。
其中,在所述第一频率和所述第二频率不同的情况下,所述第一频率和所述第二频率的差值由所述第二设备向所述第一设备指示。这样可以实现在第一频率和所述第二频率不同的情况下,第一设备能够获知这二者的差值,进而可以准确地进行多普勒测量。
需要说明的是,在一些实施方式中,在第一频率和第二频率不同的情况下,第一频率和第二频率的差值也可以是协议约定或者网络侧配置的。
作为一种可选的实施方式,所述第一设备接收所述第二设备发送的第二信号之前,所述方法还包括:
所述第一设备向所述第二设备发送请求消息,所述请求消息用于请求第二设备参与多普勒测量。
其中,上述请求消息可以用于通知第二设备进行往返多普勒测量。另外,上述请求消息也可以称作往返多普勒测量请求。
该实施方式中,可以实现基于往返多普勒测量请求进行往返多普勒测量,以避免在非往返多普勒测量场景,第二设备向第一设备反馈上述第二信号。
需要说明的是,在一些实施方式中,也可以不发送上述请求消息,例如:预先约定在一些特殊场景或者特殊业务下进行往返多普勒测量。
可选的,所述第一设备接收所述第二设备发送的第二信号之前,所述方法还包括:
所述第一设备接收所述第二设备发送的响应消息,所述响应消息用于指示所述第二设 备参与多普勒测量,或者,所述响应消息用于指示如下至少一项:所述第二设备拒绝参与多普勒测量、所述第二设备拒绝参与多普勒测量的原因;
其中,所述第一设备在所述响应消息指示所述第二设备参与多普勒测量的情况下,接收所述第二设备发送的所述第二信号。
另外,在上述响应消息用于指示第二设备拒绝参与多普勒测量的情况下,第一设备可以请求其他设备参与多普勒测量,或者结束多普勒测量;在上述响应消息指示第二设备拒绝参与多普勒测量的原因的情况下,第一设备可以请求其他设备参与多普勒测量,或者结束多普勒测量,或者基于上述原因调整第一信号的配置,基于调整的配置再次请求第二设备参与多普勒测量。
该实施方式中,可以实现基于请求消息和响应消息进行往返多普勒测量。
在一些实施方式中,上述响应消息可以表示接受或拒绝参与往返多普勒测量,和/或说明拒绝往返多普勒测量的原因。例如:第二设备收到上述请求消息后,向第一设备发送上述响应消息,表示接受或拒绝参与往返多普勒测量,和/或说明拒绝往返多普勒测量的原因。例如,第二设备根据自身移动性信息、位置信息、电量信息、发送资源信息中的至少一项,判断接受或拒绝上述请求消息。
需要说明的是,一些实施方式中,也可以不发送上述响应消息,例如:在上述请求消息发送成功的情况下,就默认第二设备接受参与多普勒测量。
一个实施例,如图4所示,包括如下步骤:
第一设备获取感知测量需求信息;
第一设备向第二设备发送往返多普勒测量请求;
第二设备向第一设备发送往返多普勒测量响应;
第一设备向第二设备发送第一信号;
第二设备向第一设备发送第二信号;
第一设备基于第二信号,获取目标多普勒计算结果,即获取多普勒测量结果。
作为一种可选的实施方式,所述第一信号的第一配置信息、所述第二信号的第二配置信息、所述第一操作中的至少一项为预先约定的;
或者,所述第一设备接收所述第二设备发送的第二信号之前,所述方法还包括:
所述第一设备向所述第二设备发送配置信息,所述配置信息包括如下至少一项:
所述第一信号的第一配置信息、所述第二信号的第二配置信息、时域位置关系配置,所述时域位置关系配置为所述第一信号与所述第二信号的时域位置关系配置。
其中,所述第一配置信息可以包括所述第一信号对应的如下至少一项:
信号配置标识、波形、子载波间隔、保护间隔、频域起始位置、频域资源长度、频域资源间隔、时域起始位置、时域资源长度、时域资源间隔、信号功率、序列信息、信号方向;
所述第二配置信息可以包括所述第二信号对应的如下至少一项:
信号配置标识、波形、子载波间隔、保护间隔、频域起始位置、频域资源长度、频域资源间隔、时域起始位置、时域资源长度、时域资源间隔、信号功率、序列信息、信号方向;
所述时域位置关系配置可以包括如下至少一项:
所述第一信号的时域起始位置与所述第二信号的时域起始位置的时间间隔;
所述第一信号的时域结束位置与所述第二信号的时域起始位置的时间间隔;
所述第一信号的时域结束位置与所述第二信号的时域结束位置的时间间隔;
所述第一信号的时域起始位置与所述第二信号的时域结束位置的时间间隔。
其中,上述信号配置标识是用于区分不同的信号配置,通过信号配置标识可以确定第一信号和第二信号的信号配置。
上述波形可以是OFDM、单载波频分多址(Single-carrier Frequency-Division Multiple Access,SC-FDMA)、正交时频空间(Orthogonal Time Frequency Space,OTFS)、调频连续波(Frequency Modulated Continuous Wave,FMCW)或脉冲信号等;
上述子载波间隔可以是OFDM系统的子载波间隔,例如:30KHz。
上述保护间隔可以是从信号结束发送时刻到该信号的最迟回波信号被接收的时刻之间的时间间隔,该参数正比于最大感知距离;例如,可以通过c/(2Rmax)计算得到,Rmax为最大感知距离(属于感知需求信息),如对于自发自收的感知信号,Rmax代表感知信号收发点到信号发射点的最大距离;在某些情况下,OFDM信号循环前缀(Cyclic prefix,CP)可以起到最小保护间隔的作用,c是光速。
上述频域起始位置可以是起始频点,也可以是起始资源单元(Resource element,RE)、资源块(Resource block,RB)索引。
上述频域资源长度可以是频域带宽,该频域带宽反比于距离分辨率,每个信号的频域带宽B≥c/(2ΔR),其中,c为光速,ΔR为距离分辨率。
上述反比于最大无模糊距离或最大无模糊时延,其中,对于OFDM系统当子载波采用连续映射时频域间隔等于子载波间隔。
时域起始位置可以为起始时间点,也可以是起始符号、时隙、帧索引。
上述时域资源长度可以是突发(burst)持续时间,时域资源长度反比于多普勒分辨率(属于感知需求信息)。
上述时域资源间隔可以是相邻的两个信号之间的时间间隔。
上述信号功率可以是间隔功率取值,例如:从-20dBm到23dBm每隔2dBm取一个值。
上述序列信息可以生成序列信息,例如:ZC(Zadoff–Chu)序列或伪随机(Pseudo-Noise,PN)序列,以及还可以包括生成方式。
上述信号方向可以是信号发送的角度信息或波束信息。
在一些实施方式中,上述第二信号发送的时域资源与信道稳定时间关联,即第一信号时域起始位置与第二信号时域结束位置的时间间隔(TRTD)小于或等于信道稳定时间,例 如:第二信号的发送时域资源位置与第一信号的时域资源位置关系图5所示。
其中,Toffset1表示第一信号的时域起始位置与第二信号的时域起始位置的时间间隔,Toffset2表示第一信号的时域结束位置与第二信号的时域起始位置的时间间隔,Toffset3表示第一信号的时域结束位置与第二信号的时域结束位置的时间间隔,TRTD表示第一信号的时域起始位置与第二信号的时域结束位置的时间间隔。
在一些实施方式中,上述第一信号和第二信号在时域上可以是分先后发送的,也可以交替发送的,如图6所示,此时,第一信号与第二信号的相对时域位置关系不包括Toffset2和Toffset3
上述实施方式中,通过上述第一信号的第一配置信息和第二信号的第二配置信息可以实现在第一设备和第二设备之间可靠地传输第一信号和第二信号。
作为一种可选的实施方式,所述第一设备接收所述第二设备发送的第二信号之前,所述方法还包括:
所述第一设备向所述第二设备发送第一指示信息,所述第一指示信息用于指示所述第二设备对接收到的所述第一信号进行所述第一操作。
上述第一指示信息可以指示上述第一操作的具体内容,也可以是指示允许或禁止第二设备进行的操作。
在一些实施方式中,所述第一指示信息包括如下至少一项:
晶振频率调整指示、频偏补偿指示、频域抽取指示、所述第一信号的信号配置标识、门限指示;
其中,所述晶振频率调整指示用于禁止所述第二设备对接收到的所述第一信号进行晶振频率调整;或者,所述晶振频率调整指示用于允许所述第二设备对接收到的所述第一信号进行晶振频率调整,或者,所述晶振频率调整指示用于指示所述第二设备向所述第一设备指示第一频率和第二频率的差值,所述第一频率为所述第二设备对所述第一信号进行下变频的频率,所述第二频率为所述第二设备对所述第一信号进行上变频的频率;
所述频偏补偿指示用于禁止所述第二设备对接收到的所述第一信号进行基带频偏补偿;或者,所述频偏补偿指示用于允许所述第二设备对接收到的所述第一信号进行基带频偏补偿,或者,所述频偏补偿指示用于指示所述第二设备向所述第一设备指示基带频偏补偿值;
所述频域抽取指示用于频域抽取规则;
所述门限指示用于指示性能指标门限。
上述晶振频率调整指示用于禁止所述第二设备对接收到的所述第一信号进行晶振频率调整可以是,在第二设备基于第一频率对第一信号进行下变频,基于第二频率对第二信号进行上变频的情况下,第一频率和第二频率相同。
上述晶振频率调整指示用于允许所述第二设备对接收到的所述第一信号进行晶振频率调整可以是,在第二设备基于第一频率对第一信号进行下变频,基于第二频率对第二信 号进行上变频的情况下,第一频率和第二频率可以不相同,例如:第二设备向第一设备上报频率差值,或者基于预先约定的频率差值进行变频操作。
上述频偏补偿指示用于允许所述第二设备对接收到的所述第一信号进行基带频偏补偿可以是,在第二设备对第一信号进行基带频偏补偿的情况下,第二设备通知第一设备频偏补偿值,或者基于预设约定的频偏补偿值进行频偏补偿值。
上述频域抽取规则可以是,RB提取规则,例如:第一信号包含273个RB,选择其中20个RB。
另外,上述频域抽取规则可以是直接指示进行抽取的频域资源索引,也可以是抽取后的第二信号需满足的频域采样间隔。
上述实施方式中,可以实现第二设备基于第一设备的指示进行第一操作,从而降低多普勒测量的复杂度。
在一些实施方式中,上述第一指示信息还可以包括第一信号的配置信息和第二信号的配置信息中的至少一项,例如:包括第一信号和第二信号中至少一项的信号配置标识。
作为一种可选的实施方式,所述第一设备向第二设备发送第一信号之后,所述方法还包括如下至少一项:
所述第一设备接收所述第二设备发送的性能指标信息,所述性能指标信息为针对所述第一信号进行测量得到的性能指标信息;
所述第一设备接收所述第二设备发送的第二指示信息,所述第二指示信息用于指示如下至少一项:
对所述第一信号进行配置调整、往返多普勒测量失败。
其中,上述性能指标信息可以包括如下至少一项:
信号强度信息、信号与干扰和噪声比(Signal to Interference plus Noise Ratio,SINR)信息、信噪比(Signal to Noise Ratio,SNR)信息、感知SNR信息、感知SINR信息。
其中,SINR信息是指非感知维度的SINR信息,上述SNR信息是指非感知维度的SNR信息。
上述感知SNR可以是感知第一信号的信号分量功率与噪声功率的比值,上述感知SINR可以是感知第一信号的信号分量功率与噪声和干扰的功率之和的比值。
以雷达检测为例,感知第一信号功率的获取方法,可以是以下选项中的至少一项:
方式一、基于回波信号快时间维FFT处理得到的时延一维图进行恒虚警检测(Constant False Alarm Rate Detector,CFAR),以CFAR过门限的幅度最大样值点为目标样值点、以其幅度为目标信号幅度来计算回波信号功率,如图7所示;
方式二、基于回波信号慢时间维FFT处理得到的多普勒一维图进行CFAR,以CFAR过门限的幅度最大样值点为目标样值点、以其幅度为目标信号幅度来计算回波信号功率,同图7所示;
方式三、基于回波信号2D-FFT处理得到的时延-多普勒二维图进CFAR,以CFAR过 门限的幅度最大样值点为目标样值点、以其幅度为目标信号幅度来计算回波信号功率;
方式四、基于回波信号3D-FFT处理得到的时延-多普勒-角度三维图进行CFAR,以CFAR过门限的幅度最大样值点为目标样值点、以其幅度为目标信号幅度来计算回波信号功率;
其中,信号幅度的确定方法除以上的以CFAR过门限的幅度最大样值点为目标样值点以外,还可以是,以CFAR过门限的幅度最大样值点及其最邻近的若干个过门限样值点的均值作为目标信号幅度来计算回波信号功率。
其中,回波信号的SNR/SINR的获取方法可以是以下选项中的至少一项:
方式一、基于回波信号快时间维FFT处理得到的时延一维图进行CFAR,以CFAR过门限的幅度最大样值点为目标样值点、以其幅度为目标信号幅度,以一维图中距离目标样值点位置±ε个样值点以外的所有样值点为干扰/噪声样值点、并统计其平均干扰/幅度为干扰/噪声信号幅度,如图7所示,最后以目标信号幅度和干扰/噪声信号幅度计算SNR/SINR,ε为常数;
方式二、基于回波信号慢时间维FFT处理得到的多普勒一维图进行CFAR,以CFAR过门限的幅度最大样值点为目标样值点、以其幅度为目标信号幅度,以一维图中距离目标样值点位置±η个样值点以外的所有样值点为干扰/噪声样值点、并统计其平均幅度为干扰/噪声信号幅度,最后以目标信号幅度和干扰/噪声信号幅度计算SNR/SINR,η为常数;
方式三、基于回波信号2D-FFT处理得到的时延-多普勒二维图进CFAR,以CFAR过门限的幅度最大样值点为目标样值点、以其幅度为目标信号幅度,以二维图中距离目标样值点±ε(快时间维)和±η(慢时间维)个样值点以外的所有样值点为干扰/噪声样值点、并统计其平均幅度为干扰/噪声信号幅度,最后以目标信号幅度和干扰/噪声信号幅度计算SNR/SINR;
方式四、基于回波信号3D-FFT处理得到的时延-多普勒-角度三维图进行CFAR,以CFAR过门限的幅度最大样值点为目标样值点、以其幅度为目标信号幅度,以三维图中距离目标样值点±ε(快时间维)、±η(慢时间维)和±δ(角度维)个样值点以外的所有样值点为干扰/噪声样值点、并统计其平均幅度为干扰/噪声信号幅度,最后以目标信号幅度和干扰/噪声信号幅度计算SNR/SINR,δ为常数;
方式五、目标信号幅度的确定方法除以上的以CFAR过门限的幅度最大样值点为目标样值点以外,还可以是以CFAR过门限的幅度最大样值点及其最邻近的若干个过门限样值点的均值作为目标信号幅度。
另外,干扰/噪声样值点的确定方法还可以是根据上述确定的干扰/噪声样值点进一步筛选,筛选方法是:对于时延一维图,去除时延为0附近的若干个样值点,以剩下的干扰/噪声样值点作为噪声样值点;或者,对于多普勒一维图,去除多普勒为0附近的若干个样值点,以剩下的干扰/噪声样值点为干扰/噪声样值点;或者,对于时延-多普勒二维图,去除以时延为0附近若干个点、全部多普勒范围构成的条状范围的干扰/噪声样值点,以 剩下的噪声样值点作为干扰/噪声样值点;或者,对于时延-多普勒-角度三维图,去除以时间维0附件若干个点、全部多普勒范围和全部角度范围构成的切片状范围的干扰/噪声样值点,以剩下的干扰/噪声样值点作为干扰/噪声样值点。
上述第二指示信息可以是基于上述第二设备基于上述性能指标信息发送的,例如:性能指标信息未达到预期,则发送上述第二指示信息,以指示对第一信号进行配置调整,或者指示往返多普勒测量失败。
例如:第二设备根据预设门限进行判定,当性能指标信息不满足门限要求时,向第一设备发送往返多普勒测量失败指示和/或第一信号调整指示,通知第一设备基于当前第一信号进行往返多普勒测量失败,其中,门限值可以是约定好的或者第一设备通知的。
另外,上述第二指示信息可以如图4所示的往返多普勒测量失败指示或第一信号调整指示。
需要说明的是,在一些实施方式中,第一设备可以基于上述性能指标信息确定是否对第一信号进行调整,或者确定往返多普勒测量是否失败,即第二设备可以不向第一设备发送上述第二指示信息。
可选的,所述方法还包括:
在所述性能指标信息不满足预设门限条件的情况下,所述第一设备向所述第二设备发送第三指示信息,所述第三指示信息用于指示如下至少一项:
对所述第一信号进行配置调整、往返多普勒测量失败。
该实施方式中,可以实现a)第二设备向第一设备发送性能指标信息,第一设备根据性能指标信息确定进行第一信号配置调整或判定往返多普勒测量失败。另外,该实施方式中,还可以向感知需求发起方反馈失败指示。
上述对第一信号进行配置调整可以是,第一设备进行第一信号的参数调整,例如:增加第一信号发射功率或时频域密度,重新进行往返多普勒测量,或者判定测量失败,向感知需求发起方反馈失败指示。
在一些实施方式中,第一信号进行配置调整也可以称作第二操作。
作为一种可选的实施方式,所述方法还包括:
所述第一设备基于多普勒测量结果,获取感知测量结果。
其中,上述多普勒测量结果为步骤303获取到的测量结果。
该实施方式中,第一设备得到多普勒测量结果后,基于多普勒测量结果得到感知结果,该感知结果可以为以多普勒为基本测量量的感知业务对应的感知结果,例如:包括但不限于如下至少一项:
运动速度、运动方向、目标是否存在或目标数量、运动轨迹、动作、手势、生命体征(呼吸、心跳等)。
在一些实施方式中,第一设备得到多普勒测量结果后,还可以是发送给第三设备,第三设备基于多普勒测量结果得到感知结果。其中,第三设备可以是感知网络功能、感知网 元或者感知管理功能(Sensing Management Function,Sensing MF)。
本申请实施例中,感知网络功能、感知网元或者感知管理功能,可以处于RAN侧或核心网侧,是指核心网和/或RAN侧中负责感知请求处理、感知资源调度、感知信息交互、感知数据处理等至少一项功能的网络节点,可以是基于5G网络中AMF或LMF升级,也可以是其他网络节点或新定义的网络节点,具体的,感知网络功能、感知网元或者感知管理功能的功能特性可以包括以下至少一项:
与无线信号发送设备和/或无线信号测量设备(包括目标终端或者目标终端的服务基站或者目标区域关联的基站)进行目标信息交互,其中,目标信息包括感知处理请求,感知能力,感知辅助数据,感知测量量类型,感知资源配置信息等,以获得无线信号测量设备发送目标感知结果或感知测量量(上行测量量或下行测量量)的值;其中,无线信号也可以称作感知信号。
根据感知业务的类型、感知业务消费者信息、所需的感知QoS要求信息、无线信号发送设备的感知能力、无线信号测量设备的感知能力等因素来决定使用的感知方式,该感知方法可以包括图2所示的任一感知方式。
根据感知业务的类型、感知业务消费者的信息、所需的感知QoS要求信息、无线信号发送设备的感知能力、无线信号测量设备的感知能力等因素,来决定为感知业务服务的感知设备,其中,感知设备包括无线信号发送设备和/或无线信号测量设备。
管理感知业务所需资源的整体协调和调度,如对基站和/或终端的感知资源进行相应的配置;
对感知测量量的值进行数据处理,或进行计算获得感知结果。进一步地,验证感知结果,估计感知精度等。
在本申请实施例中,第一设备向第二设备发送第一信号;所述第一设备接收所述第二设备发送的第二信号,其中,所述第二信号为所述第二设备针对所述第一信号执行第一操作得到的信号;所述第一设备基于所述第二信号进行多普勒测量。这样由于第二信号是对第一信号执行第一操作得到的信号,从而实现进行多普勒测量的信号的发送端和接收端为同一个设备,进而可以避免发送端和接收端为不同设备存在时钟偏差问题,达到提高多普勒测量结果准确性的效果。
本申请实施例中,第一设备发送第一信号,第二设备将接收到的信号反馈给第一设备,由第一设备进行多普勒测量,即经过第二设备将接收信号反馈给第一设备后,信号中收发时钟频率偏差的影响被抵消掉,此时第一设备进行多普勒测量不受到收发时钟频率偏差的影响,能够测量得到原始信道多普勒信息,可用于以多普勒为基本测量量的感知业务。
请参见图8,图8是本申请实施例提供的另一种多普勒测量方法的流程图,如图8所示,包括以下步骤:
步骤801、第二设备接收第一设备发送的第一信号;
步骤802、所述第二设备针对所述第一信号执行第一操作得到的第二信号;
步骤803、所述第二设备向所述第一设备发送所述第二信号。
可选的,所述第一信号和所述第二信号的时域资源格式相同。
可选的,所述时域资源格式相同包括如下至少一项:
时域资源长度相同、时域资源间隔相同;
其中,所述第一信号的时域资源间隔是指所述第一信号对应的相邻两个时域资源单元之间的间隔,所述第二信号的时域资源间隔是指所述第二信号对应的相邻两个时域资源单元之间的间隔。
可选的,所述第一信号和所述第二信号的时域资源长度与预设多普勒分辨率关联;和/或,
所述第一信号的时域资源间隔与预设最大无模糊多普勒频移关联,所述第二信号的时域资源间隔与所述预设最大无模糊多普勒频移关联。
可选的,所述第一信号和所述第二信号的时域资源长度大于或者等于第一值,所述第一值为1除以所述预设多普勒分辨率的取值;
所述第一信号的时域资源间隔小于或者等于第二值,所述第二信号的时域资源间隔小于或者等于所述第二值;其中,所述第二值为1除以第三值的取值,所述第三值等于2倍所述预设最大无模糊多普勒频移,或者,所述第三值为4倍第四值,所述第四值为所述预设最大无模糊多普勒频移的积的绝对值。
可选的,所述预设多普勒分辨率和所述预设最大无模糊多普勒频移中的至少一项是根据感知需求确定。
可选的,所述第一信号和所述第二信号的时域资源总长度小于或者等于预设信道稳定时间;和/或,
所述第二信号与所述第一信号的发送时间间隔小于或者等于预设时间间隔;和/或
所述第二信号的时域起始位置不晚于预设时间位置。
可选的,所述第一操作包括如下至少一项:
下变频和上变频;
基带频偏补偿;
频域抽样。
可选的,所述下变频和上变频,包括:
基于第一频率进行下变频和基于第二频率进行上变频;
其中,所述第一频率和所述第二频率相同,或者,所述第一频率和所述第二频率不同。
可选的,在所述第一频率和所述第二频率不同的情况下,所述第一频率和所述第二频率的差值由所述第二设备向所述第一设备指示。
可选的,所述第二设备所述第一设备发送所述第二信号之前,所述方法还包括:
所述第二设备接收所述第一设备发送的请求消息,所述请求消息用于请求第二设备参与多普勒测量。
可选的,所述第二设备所述第一设备发送所述第二信号之前,所述方法还包括:
所述第二设备向所述第一设备发送响应消息,所述响应消息用于指示所述第二设备参与多普勒测量,或者,所述响应消息用于指示如下至少一项:所述第二设备拒绝参与多普勒测量、所述第二设备拒绝参与多普勒测量的原因;
其中,所述第二设备在所述响应消息指示所述第二设备参与多普勒测量的情况下,向所述第一设备发送所述第二信号。
可选的,所述第一信号的第一配置信息、所述第二信号的第二配置信息、所述第一操作中的至少一项为预先约定的;
或者,所述第二设备所述第一设备发送所述第二信号之前,所述方法还包括:
所述第二设备接收所述第一设备发送的配置信息,所述配置信息包括如下至少一项:
所述第一信号的第一配置信息、所述第二信号的第二配置信息、时域位置关系配置,所述时域位置关系配置为所述第一信号与所述第二信号的时域位置关系配置。
可选的,所述第一配置信息包括所述第一信号对应的如下至少一项:
信号配置标识、波形、子载波间隔、保护间隔、频域起始位置、频域资源长度、频域资源间隔、时域起始位置、时域资源长度、时域资源间隔、信号功率、序列信息、信号方向;
所述第二配置信息包括所述第二信号对应的如下至少一项:
信号配置标识、波形、子载波间隔、保护间隔、频域起始位置、频域资源长度、频域资源间隔、时域起始位置、时域资源长度、时域资源间隔、信号功率、序列信息、信号方向;
所述时域位置关系配置包括如下至少一项:
所述第一信号的时域起始位置与所述第二信号的时域起始位置的时间间隔;
所述第一信号的时域结束位置与所述第二信号的时域起始位置的时间间隔;
所述第一信号的时域结束位置与所述第二信号的时域结束位置的时间间隔;
所述第一信号的时域起始位置与所述第二信号的时域结束位置的时间间隔。
可选的,所述第二设备所述第一设备发送所述第二信号之前,所述方法还包括:
所述第二设备接收所述第一设备发送的第一指示信息,所述第一指示信息用于指示所述第二设备对接收到的所述第一信号进行所述第一操作。
可选的,所述第一指示信息包括如下至少一项:
晶振频率调整指示、频偏补偿指示、频域抽取指示、所述第一信号的信号配置标识、门限指示;
其中,所述晶振频率调整指示用于禁止所述第二设备对接收到的所述第一信号进行晶振频率调整;或者,所述晶振频率调整指示用于允许所述第二设备对接收到的所述第一信号进行晶振频率调整,或者,所述晶振频率调整指示用于指示所述第二设备向所述第一设备指示第一频率和第二频率的差值,所述第一频率为所述第二设备对所述第一信号进行下 变频的频率,所述第二频率为所述第二设备对所述第一信号进行上变频的频率;
所述频偏补偿指示用于禁止所述第二设备对接收到的所述第一信号进行基带频偏补偿;或者,所述频偏补偿指示用于允许所述第二设备对接收到的所述第一信号进行基带频偏补偿,或者,所述频偏补偿指示用于指示所述第二设备向所述第一设备指示基带频偏补偿值;
所述频域抽取指示用于频域抽取规则;
所述门限指示用于指示性能指标门限。
可选的,所述第二设备所述第一设备发送所述第二信号之前之后,所述方法还包括如下至少一项:
所述第二设备向所述第一设备发送性能指标信息,所述性能指标信息为针对所述第一信号进行测量得到的性能指标信息;
所述第二设备向所述第二设备发送第二指示信息,所述第二指示信息用于指示如下至少一项:
对所述第一信号进行配置调整、往返多普勒测量失败。
可选的,所述性能指标信息包括如下至少一项:
信号强度信息、信号与干扰和噪声比SINR信息、SNR信息、感知SNR信息、感知SINR信息。
可选的,所述方法还包括:
在所述性能指标信息不满足预设门限条件的情况下,所述第二设备接收所述第一设备发送的第三指示信息,所述第三指示信息用于指示如下至少一项:
对所述第一信号进行配置调整、往返多普勒测量失败。
需要说明的是,本实施例作为与图3所示的实施例中对应的第二设备的实施方式,其具体的实施方式可以参见图3所示的实施例的相关说明,以为避免重复说明,本实施例不再赘述。
请参见图9,图9是本申请实施例提供的一种多普勒测量装置的结构图,如图9所示,多普勒测量装置900包括:
第一发送模块901,用于向第二设备发送第一信号;
第一接收模块902,用于接收所述第二设备发送的第二信号,其中,所述第二信号为所述第二设备针对所述第一信号执行第一操作得到的信号;
测量模块903,用于基于所述第二信号进行多普勒测量。
可选的,所述第一信号和所述第二信号的时域资源格式相同。
可选的,所述时域资源格式相同包括如下至少一项:
时域资源长度相同、时域资源间隔相同;
其中,所述第一信号的时域资源间隔是指所述第一信号对应的相邻两个时域资源单元之间的间隔,所述第二信号的时域资源间隔是指所述第二信号对应的相邻两个时域资源单 元之间的间隔。
可选的,所述第一信号和所述第二信号的时域资源长度与预设多普勒分辨率关联;和/或,
所述第一信号的时域资源间隔与预设最大无模糊多普勒频移关联,所述第二信号的时域资源间隔与所述预设最大无模糊多普勒频移关联。
可选的,所述第一信号和所述第二信号的时域资源长度大于或者等于第一值,所述第一值为1除以所述预设多普勒分辨率的取值;
所述第一信号的时域资源间隔小于或者等于第二值,所述第二信号的时域资源间隔小于或者等于所述第二值;其中,所述第二值为1除以第三值的取值,所述第三值等于2倍所述预设最大无模糊多普勒频移,或者,所述第三值为4倍第四值,所述第四值为所述预设最大无模糊多普勒频移的积的绝对值。
可选的,所述预设多普勒分辨率和所述预设最大无模糊多普勒频移中的至少一项是根据感知需求确定。
可选的,所述第一信号和所述第二信号的时域资源总长度小于或者等于预设信道稳定时间;和/或,
所述第二信号与所述第一信号的发送时间间隔小于或者等于预设时间间隔;和/或
所述第二信号的时域起始位置不晚于预设时间位置。
可选的,所述第一操作包括如下至少一项:
下变频和上变频;
基带频偏补偿;
频域抽样。
可选的,所述下变频和上变频,包括:
基于第一频率进行下变频和基于第二频率进行上变频;
其中,所述第一频率和所述第二频率相同,或者,所述第一频率和所述第二频率不同。
可选的,在所述第一频率和所述第二频率不同的情况下,所述第一频率和所述第二频率的差值由所述第二设备向所述第一设备指示。
可选的,所述装置还包括:
第二发送模块,用于向所述第二设备发送请求消息,所述请求消息用于请求第二设备参与多普勒测量。
可选的,所述装置还包括:
第二接收模块,用于接收所述第二设备发送的响应消息,所述响应消息用于指示所述第二设备参与多普勒测量,或者,所述响应消息用于指示如下至少一项:所述第二设备拒绝参与多普勒测量、所述第二设备拒绝参与多普勒测量的原因;
其中,所述第一接收模块在所述响应消息指示所述第二设备参与多普勒测量的情况下,接收所述第二设备发送的所述第二信号。
可选的,所述第一信号的第一配置信息、所述第二信号的第二配置信息、所述第一操作中的至少一项为预先约定的;
或者,所述装置还包括:
第三发送模块,用于向所述第二设备发送配置信息,所述配置信息包括如下至少一项:
所述第一信号的第一配置信息、所述第二信号的第二配置信息、时域位置关系配置,所述时域位置关系配置为所述第一信号与所述第二信号的时域位置关系配置。
可选的,所述第一配置信息包括所述第一信号对应的如下至少一项:
信号配置标识、波形、子载波间隔、保护间隔、频域起始位置、频域资源长度、频域资源间隔、时域起始位置、时域资源长度、时域资源间隔、信号功率、序列信息、信号方向;
所述第二配置信息包括所述第二信号对应的如下至少一项:
信号配置标识、波形、子载波间隔、保护间隔、频域起始位置、频域资源长度、频域资源间隔、时域起始位置、时域资源长度、时域资源间隔、信号功率、序列信息、信号方向;
所述时域位置关系配置包括如下至少一项:
所述第一信号的时域起始位置与所述第二信号的时域起始位置的时间间隔;
所述第一信号的时域结束位置与所述第二信号的时域起始位置的时间间隔;
所述第一信号的时域结束位置与所述第二信号的时域结束位置的时间间隔;
所述第一信号的时域起始位置与所述第二信号的时域结束位置的时间间隔。
可选的,所述装置还包括:
第四发送模块,用于向所述第二设备发送第一指示信息,所述第一指示信息用于指示所述第二设备对接收到的所述第一信号进行所述第一操作。
可选的,所述第一指示信息包括如下至少一项:
晶振频率调整指示、频偏补偿指示、频域抽取指示、所述第一信号的信号配置标识、门限指示;
其中,所述晶振频率调整指示用于禁止所述第二设备对接收到的所述第一信号进行晶振频率调整;或者,所述晶振频率调整指示用于允许所述第二设备对接收到的所述第一信号进行晶振频率调整,或者,所述晶振频率调整指示用于指示所述第二设备向所述第一设备指示第一频率和第二频率的差值,所述第一频率为所述第二设备对所述第一信号进行下变频的频率,所述第二频率为所述第二设备对所述第一信号进行上变频的频率;
所述频偏补偿指示用于禁止所述第二设备对接收到的所述第一信号进行基带频偏补偿;或者,所述频偏补偿指示用于允许所述第二设备对接收到的所述第一信号进行基带频偏补偿,或者,所述频偏补偿指示用于指示所述第二设备向所述第一设备指示基带频偏补偿值;
所述频域抽取指示用于频域抽取规则;
所述门限指示用于指示性能指标门限。
可选的,所述装置还包括如下至少一项:
第三接收模块,用于接收所述第二设备发送的性能指标信息,所述性能指标信息为针对所述第一信号进行测量得到的性能指标信息;
第四接收模块,用于接收所述第二设备发送的第二指示信息,所述第二指示信息用于指示如下至少一项:
对所述第一信号进行配置调整、往返多普勒测量失败。
可选的,所述性能指标信息包括如下至少一项:
信号强度信息、信号与干扰和噪声比SINR信息、信噪比SNR信息、感知SNR信息、感知SINR信息。
可选的,所述装置还包括:
第五发送模块,用于在所述性能指标信息不满足预设门限条件的情况下,向所述第二设备发送第三指示信息,所述第三指示信息用于指示如下至少一项:
对所述第一信号进行配置调整、往返多普勒测量失败。
可选的,所述装置还包括:
获取模块,用于基于多普勒测量结果,获取感知测量结果。
可选的,所述第一信号为上行信号,所述第二信号为下行信号;或者,
所述第一信号为下行信号,所述第二信号为上行信号。
可选的,所述第一信号包括如下至少一项:
参考信号、通信数据信号、同步信号、感知信号、通感一体化信号。
上述多普勒测量装置可以提高多普勒测量准确性。
本申请实施例中的多普勒测量装置可以是电子设备,例如具有操作系统的电子设备,也可以是电子设备中的部件,例如集成电路或芯片。例如:该电子设备可以是终端,也可以为除终端之外的其他设备。示例性的,终端可以包括但不限于本申请实施例所列举的终端的类型,其他设备可以为服务器、网络附属存储器(Network Attached Storage,NAS)等,本申请实施例不作具体限定。
本申请实施例提供的多普勒测量装置能够实现图3所示的方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
请参见图10,图10是本申请实施例提供的一种多普勒测量装置的结构图,如图10所示,多普勒测量装置1000包括:
第一接收模块1001,用于接收第一设备发送的第一信号;
执行模块1002,用于针对所述第一信号执行第一操作得到的第二信号;
第一发送模块1003,用于向所述第一设备发送所述第二信号。
可选的,所述第一信号和所述第二信号的时域资源格式相同。
可选的,所述时域资源格式相同包括如下至少一项:
时域资源长度相同、时域资源间隔相同;
其中,所述第一信号的时域资源间隔是指所述第一信号对应的相邻两个时域资源单元之间的间隔,所述第二信号的时域资源间隔是指所述第二信号对应的相邻两个时域资源单元之间的间隔。
可选的,所述第一信号和所述第二信号的时域资源长度与预设多普勒分辨率关联;和/或,
所述第一信号的时域资源间隔与预设最大无模糊多普勒频移关联,所述第二信号的时域资源间隔与所述预设最大无模糊多普勒频移关联。
可选的,所述第一信号和所述第二信号的时域资源长度大于或者等于第一值,所述第一值为1除以所述预设多普勒分辨率的取值;
所述第一信号的时域资源间隔小于或者等于第二值,所述第二信号的时域资源间隔小于或者等于所述第二值;其中,所述第二值为1除以第三值的取值,所述第三值等于2倍所述预设最大无模糊多普勒频移,或者,所述第三值为4倍第四值,所述第四值为所述预设最大无模糊多普勒频移的积的绝对值。
可选的,所述预设多普勒分辨率和所述预设最大无模糊多普勒频移中的至少一项是根据感知需求确定。
可选的,所述第一信号和所述第二信号的时域资源总长度小于或者等于预设信道稳定时间;和/或,
所述第二信号与所述第一信号的发送时间间隔小于或者等于预设时间间隔;和/或
所述第二信号的时域起始位置不晚于预设时间位置。
可选的,所述第一操作包括如下至少一项:
下变频和上变频;
基带频偏补偿;
频域抽样。
可选的,所述下变频和上变频,包括:
基于第一频率进行下变频和基于第二频率进行上变频;
其中,所述第一频率和所述第二频率相同,或者,所述第一频率和所述第二频率不同。
可选的,在所述第一频率和所述第二频率不同的情况下,所述第一频率和所述第二频率的差值由所述第二设备向所述第一设备指示。
可选的,所述装置还包括:
第二接收模块,用于接收所述第一设备发送的请求消息,所述请求消息用于请求第二设备参与多普勒测量。
可选的,所述装置还包括:
第二发送模块,用于向所述第一设备发送响应消息,所述响应消息用于指示所述第二设备参与多普勒测量,或者,所述响应消息用于指示如下至少一项:所述第二设备拒绝参 与多普勒测量、所述第二设备拒绝参与多普勒测量的原因;
其中,所述第一发送模块在所述响应消息指示所述第二设备参与多普勒测量的情况下,向所述第一设备发送所述第二信号。
可选的,所述第一信号的第一配置信息、所述第二信号的第二配置信息、所述第一操作中的至少一项为预先约定的;
或者,所述第二设备所述第一设备发送所述第二信号之前,所述装置还包括:
第三接收模块,用于接收所述第一设备发送的配置信息,所述配置信息包括如下至少一项:
所述第一信号的第一配置信息、所述第二信号的第二配置信息、时域位置关系配置,所述时域位置关系配置为所述第一信号与所述第二信号的时域位置关系配置。
可选的,所述第一配置信息包括所述第一信号对应的如下至少一项:
信号配置标识、波形、子载波间隔、保护间隔、频域起始位置、频域资源长度、频域资源间隔、时域起始位置、时域资源长度、时域资源间隔、信号功率、序列信息、信号方向;
所述第二配置信息包括所述第二信号对应的如下至少一项:
信号配置标识、波形、子载波间隔、保护间隔、频域起始位置、频域资源长度、频域资源间隔、时域起始位置、时域资源长度、时域资源间隔、信号功率、序列信息、信号方向;
所述时域位置关系配置包括如下至少一项:
所述第一信号的时域起始位置与所述第二信号的时域起始位置的时间间隔;
所述第一信号的时域结束位置与所述第二信号的时域起始位置的时间间隔;
所述第一信号的时域结束位置与所述第二信号的时域结束位置的时间间隔;
所述第一信号的时域起始位置与所述第二信号的时域结束位置的时间间隔。
可选的,所述装置还包括:
第四接收模块,用于接收所述第一设备发送的第一指示信息,所述第一指示信息用于指示所述第二设备对接收到的所述第一信号进行所述第一操作。
可选的,所述第一指示信息包括如下至少一项:
晶振频率调整指示、频偏补偿指示、频域抽取指示、所述第一信号的信号配置标识、门限指示;
其中,所述晶振频率调整指示用于禁止所述第二设备对接收到的所述第一信号进行晶振频率调整;或者,所述晶振频率调整指示用于允许所述第二设备对接收到的所述第一信号进行晶振频率调整,或者,所述晶振频率调整指示用于指示所述第二设备向所述第一设备指示第一频率和第二频率的差值,所述第一频率为所述第二设备对所述第一信号进行下变频的频率,所述第二频率为所述第二设备对所述第一信号进行上变频的频率;
所述频偏补偿指示用于禁止所述第二设备对接收到的所述第一信号进行基带频偏补 偿;或者,所述频偏补偿指示用于允许所述第二设备对接收到的所述第一信号进行基带频偏补偿,或者,所述频偏补偿指示用于指示所述第二设备向所述第一设备指示基带频偏补偿值;
所述频域抽取指示用于频域抽取规则;
所述门限指示用于指示性能指标门限。
可选的,所述装置还包括如下至少一项:
第二发送模块,用于向所述第一设备发送性能指标信息,所述性能指标信息为针对所述第一信号进行测量得到的性能指标信息;
第三发送模块,用于向所述第二设备发送第二指示信息,所述第二指示信息用于指示如下至少一项:
对所述第一信号进行配置调整、往返多普勒测量失败。
可选的,所述性能指标信息包括如下至少一项:
信号强度信息、信号与干扰和噪声比SINR信息、SNR信息、感知SNR信息、感知SINR信息。
可选的,所述装置还包括:
第五接收模块,用于在所述性能指标信息不满足预设门限条件的情况下,所述第二设备接收所述第一设备发送的第三指示信息,所述第三指示信息用于指示如下至少一项:
对所述第一信号进行配置调整、往返多普勒测量失败。
上述多普勒测量装置可以提高多普勒测量准确性。
本申请实施例中的多普勒测量装置可以是电子设备,例如具有操作系统的电子设备,也可以是电子设备中的部件,例如集成电路或芯片。该电子设备可以是终端或网络侧设备。
本申请实施例提供的多普勒测量装置能够实现图8所示的方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
可选的,如图11所示,本申请实施例还提供一种通信设备1100,包括处理器1101和存储器1102,存储器1102上存储有可在所述处理器1101上运行的程序或指令,例如,该通信设备1100为第一设备时,该程序或指令被处理器1101执行时实现上述第一设备侧的多普勒测量方法实施例的各个步骤,且能达到相同的技术效果。该通信设备1100为第二设备时,该程序或指令被处理器1101执行时实现上述第二设备侧的多普勒测量方法实施例的各个步骤,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供一种通信设备,包括处理器及通信接口,其中,所述通信接口用于向第二设备发送第一信号;接收所述第二设备发送的第二信号,其中,所述第二信号为所述第二设备针对所述第一信号执行第一操作得到的信号;所述处理器或者通信接口用于基于所述第二信号进行多普勒测量。该通信设备实施例与上述第一设备侧的多普勒测量方法实施例对应,上述方法实施例的各个实施过程和实现方式均可适用于该通信设备实施例中,且能达到相同的技术效果。
具体地,图12为实现本申请实施例的一种通信设备的硬件结构示意图。
该通信设备1200包括但不限于:射频单元1201、网络模块1202、音频输出单元1203、输入单元1204、传感器1205、显示单元1206、用户输入单元1207、接口单元1208、存储器1209以及处理器1210等中的至少部分部件。
本领域技术人员可以理解,通信设备1200还可以包括给各个部件供电的电源(比如电池),电源可以通过电源管理系统与处理器1210逻辑相连,从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图12中示出的通信设备结构并不构成对通信设备的限定,通信设备可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置,在此不再赘述。
应理解的是,本申请实施例中,输入单元1204可以包括图形处理单元(Graphics Processing Unit,GPU)12041和麦克风12042,图形处理单元12041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元1206可包括显示面板12061,可以采用液晶显示器、有机发光二极管等形式来配置显示面板12061。用户输入单元1207包括触控面板12071以及其他输入设备12072中的至少一种。触控面板12071,也称为触摸屏。触控面板12071可包括触摸检测装置和触摸控制器两个部分。其他输入设备12072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。
本申请实施例中,射频单元1201接收来自网络侧设备的下行数据后,可以传输给处理器1210进行处理;另外,射频单元1201可以向网络侧设备发送上行数据。通常,射频单元1201包括但不限于天线、放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器1209可用于存储软件程序或指令以及各种数据。存储器1209可主要包括存储程序或指令的第一存储区和存储数据的第二存储区,其中,第一存储区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外,存储器1209可以包括易失性存储器或非易失性存储器,或者,存储器1209可以包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synch link DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DRRAM)。本申请实施例中的存储器1209包括但不限于这些和任意其它适合类型的存储器。
处理器1210可包括一个或多个处理单元;可选的,处理器1210集成应用处理器和调 制解调处理器,其中,应用处理器主要处理涉及操作系统、用户界面和应用程序等的操作,调制解调处理器主要处理无线通信信号,如基带处理器。可以理解的是,上述调制解调处理器也可以不集成到处理器1210中。
该实施例中,上述通信设备为第一设备,且以第一设备为终端进行举例说明:
射频单元1201,用于向第二设备发送第一信号;接收所述第二设备发送的第二信号,其中,所述第二信号为所述第二设备针对所述第一信号执行第一操作得到的信号;
射频单元1201或处理器1210,用于基于所述第二信号进行多普勒测量。
可选的,所述第一信号和所述第二信号的时域资源格式相同。
可选的,所述时域资源格式相同包括如下至少一项:
时域资源长度相同、时域资源间隔相同;
其中,所述第一信号的时域资源间隔是指所述第一信号对应的相邻两个时域资源单元之间的间隔,所述第二信号的时域资源间隔是指所述第二信号对应的相邻两个时域资源单元之间的间隔。
可选的,所述第一信号和所述第二信号的时域资源长度与预设多普勒分辨率关联;和/或,
所述第一信号的时域资源间隔与预设最大无模糊多普勒频移关联,所述第二信号的时域资源间隔与所述预设最大无模糊多普勒频移关联。
可选的,所述第一信号和所述第二信号的时域资源长度大于或者等于第一值,所述第一值为1除以所述预设多普勒分辨率的取值;
所述第一信号的时域资源间隔小于或者等于第二值,所述第二信号的时域资源间隔小于或者等于所述第二值;其中,所述第二值为1除以第三值的取值,所述第三值等于2倍所述预设最大无模糊多普勒频移,或者,所述第三值为4倍第四值,所述第四值为所述预设最大无模糊多普勒频移的积的绝对值。
可选的,所述预设多普勒分辨率和所述预设最大无模糊多普勒频移中的至少一项是根据感知需求确定。
可选的,所述第一信号和所述第二信号的时域资源总长度小于或者等于预设信道稳定时间;和/或,
所述第二信号与所述第一信号的发送时间间隔小于或者等于预设时间间隔;和/或
所述第二信号的时域起始位置不晚于预设时间位置。
可选的,所述第一操作包括如下至少一项:
下变频和上变频;
基带频偏补偿;
频域抽样。
可选的,所述下变频和上变频,包括:
基于第一频率进行下变频和基于第二频率进行上变频;
其中,所述第一频率和所述第二频率相同,或者,所述第一频率和所述第二频率不同。
可选的,在所述第一频率和所述第二频率不同的情况下,所述第一频率和所述第二频率的差值由所述第二设备向所述第一设备指示。
可选的,所述第一设备接收所述第二设备发送的第二信号之前,射频单元1201还用于:
向所述第二设备发送请求消息,所述请求消息用于请求第二设备参与多普勒测量。
可选的,所述第一设备接收所述第二设备发送的第二信号之前,射频单元1201还用于:
接收所述第二设备发送的响应消息,所述响应消息用于指示所述第二设备参与多普勒测量,或者,所述响应消息用于指示如下至少一项:所述第二设备拒绝参与多普勒测量、所述第二设备拒绝参与多普勒测量的原因;
其中,射频单元1201在所述响应消息指示所述第二设备参与多普勒测量的情况下,接收所述第二设备发送的所述第二信号。
可选的,所述第一信号的第一配置信息、所述第二信号的第二配置信息、所述第一操作中的至少一项为预先约定的;
或者,所述第一设备接收所述第二设备发送的第二信号之前,射频单元1201还用于:
向所述第二设备发送配置信息,所述配置信息包括如下至少一项:
所述第一信号的第一配置信息、所述第二信号的第二配置信息、时域位置关系配置,所述时域位置关系配置为所述第一信号与所述第二信号的时域位置关系配置。
可选的,所述第一配置信息包括所述第一信号对应的如下至少一项:
信号配置标识、波形、子载波间隔、保护间隔、频域起始位置、频域资源长度、频域资源间隔、时域起始位置、时域资源长度、时域资源间隔、信号功率、序列信息、信号方向;
所述第二配置信息包括所述第二信号对应的如下至少一项:
信号配置标识、波形、子载波间隔、保护间隔、频域起始位置、频域资源长度、频域资源间隔、时域起始位置、时域资源长度、时域资源间隔、信号功率、序列信息、信号方向;
所述时域位置关系配置包括如下至少一项:
所述第一信号的时域起始位置与所述第二信号的时域起始位置的时间间隔;
所述第一信号的时域结束位置与所述第二信号的时域起始位置的时间间隔;
所述第一信号的时域结束位置与所述第二信号的时域结束位置的时间间隔;
所述第一信号的时域起始位置与所述第二信号的时域结束位置的时间间隔。
可选的,所述第一设备接收所述第二设备发送的第二信号之前,射频单元1201还用于:
向所述第二设备发送第一指示信息,所述第一指示信息用于指示所述第二设备对接收 到的所述第一信号进行所述第一操作。
可选的,所述第一指示信息包括如下至少一项:
晶振频率调整指示、频偏补偿指示、频域抽取指示、所述第一信号的信号配置标识、门限指示;
其中,所述晶振频率调整指示用于禁止所述第二设备对接收到的所述第一信号进行晶振频率调整;或者,所述晶振频率调整指示用于允许所述第二设备对接收到的所述第一信号进行晶振频率调整,或者,所述晶振频率调整指示用于指示所述第二设备向所述第一设备指示第一频率和第二频率的差值,所述第一频率为所述第二设备对所述第一信号进行下变频的频率,所述第二频率为所述第二设备对所述第一信号进行上变频的频率;
所述频偏补偿指示用于禁止所述第二设备对接收到的所述第一信号进行基带频偏补偿;或者,所述频偏补偿指示用于允许所述第二设备对接收到的所述第一信号进行基带频偏补偿,或者,所述频偏补偿指示用于指示所述第二设备向所述第一设备指示基带频偏补偿值;
所述频域抽取指示用于频域抽取规则;
所述门限指示用于指示性能指标门限。
可选的,所述第一设备向第二设备发送第一信号之后,射频单元1201还用于如下至少一项:
接收所述第二设备发送的性能指标信息,所述性能指标信息为针对所述第一信号进行测量得到的性能指标信息;
接收所述第二设备发送的第二指示信息,所述第二指示信息用于指示如下至少一项:
对所述第一信号进行配置调整、往返多普勒测量失败。
可选的,所述性能指标信息包括如下至少一项:
信号强度信息、信号与干扰和噪声比SINR信息、信噪比SNR信息、感知SNR信息、感知SINR信息。
可选的,射频单元1201还用于:
在所述性能指标信息不满足预设门限条件的情况下,向所述第二设备发送第三指示信息,所述第三指示信息用于指示如下至少一项:
对所述第一信号进行配置调整、往返多普勒测量失败。
可选的,射频单元1201或处理器1210还用于:
基于多普勒测量结果,获取感知测量结果。
可选的,所述第一信号为上行信号,所述第二信号为下行信号;或者,
所述第一信号为下行信号,所述第二信号为上行信号。
可选的,所述第一信号包括如下至少一项:
参考信号、通信数据信号、同步信号、感知信号、通感一体化信号。
上述通信设备可以提高多普勒测量准确性。
本申请实施例还提供一种通信设备,包括处理器及通信接口,其中,所述通信接口用于接收第一设备发送的第一信号;所述通信接口或者处理器用于针对所述第一信号执行第一操作得到的第二信号;所述通信接口还用于向第一设备发送所述第二信号。该通信设备实施例与上述第二设备侧的多普勒测量方法实施例对应,上述方法实施例的各个实施过程和实现方式均可适用于该通信设备实施例中,且能达到相同的技术效果。
具体地,本申请实施例还提供了一种通信设备。如图13所示,该通信设备1300包括:天线1301、射频装置1302、基带装置1303、处理器1304和存储器1305。天线1301与射频装置1302连接。在上行方向上,射频装置1302通过天线1301接收信息,将接收的信息发送给基带装置1303进行处理。在下行方向上,基带装置1303对要发送的信息进行处理,并发送给射频装置1302,射频装置1302对收到的信息进行处理后经过天线1301发送出去。
以上实施例中通信设备执行的方法可以在基带装置1303中实现,该基带装置1303包括基带处理器。
基带装置1303例如可以包括至少一个基带板,该基带板上设置有多个芯片,如图13所示,其中一个芯片例如为基带处理器,通过总线接口与存储器1305连接,以调用存储器1305中的程序,执行以上方法实施例中所示的网络设备操作。
该通信设备还可以包括网络接口1306,该接口例如为通用公共无线接口(common public radio interface,CPRI)。
具体地,本申请实施例的通信设备1300还包括:存储在存储器1305上并可在处理器1304上运行的指令或程序,处理器1304调用存储器1305中的指令或程序执行图10所示各模块执行的方法,并达到相同的技术效果,为避免重复,故不在此赘述。
该实施例中,上述通信设备为第二设备,以第二设备为无线接入网设备进行举例说明。
其中,射频装置1302,用于接收第一设备发送的第一信号;
射频装置1302或处理器1304,用于针对所述第一信号执行第一操作得到的第二信号;
射频装置1302还用于向所述第一设备发送所述第二信号。
可选的,所述第一信号和所述第二信号的时域资源格式相同。
可选的,所述时域资源格式相同包括如下至少一项:
时域资源长度相同、时域资源间隔相同;
其中,所述第一信号的时域资源间隔是指所述第一信号对应的相邻两个时域资源单元之间的间隔,所述第二信号的时域资源间隔是指所述第二信号对应的相邻两个时域资源单元之间的间隔。
可选的,所述第一信号和所述第二信号的时域资源长度与预设多普勒分辨率关联;和/或,
所述第一信号的时域资源间隔与预设最大无模糊多普勒频移关联,所述第二信号的时域资源间隔与所述预设最大无模糊多普勒频移关联。
可选的,所述第一信号和所述第二信号的时域资源长度大于或者等于第一值,所述第一值为1除以所述预设多普勒分辨率的取值;
所述第一信号的时域资源间隔小于或者等于第二值,所述第二信号的时域资源间隔小于或者等于所述第二值;其中,所述第二值为1除以第三值的取值,所述第三值等于2倍所述预设最大无模糊多普勒频移,或者,所述第三值为4倍第四值,所述第四值为所述预设最大无模糊多普勒频移的积的绝对值。
可选的,所述预设多普勒分辨率和所述预设最大无模糊多普勒频移中的至少一项是根据感知需求确定。
可选的,所述第一信号和所述第二信号的时域资源总长度小于或者等于预设信道稳定时间;和/或,
所述第二信号与所述第一信号的发送时间间隔小于或者等于预设时间间隔;和/或
所述第二信号的时域起始位置不晚于预设时间位置。
可选的,所述第一操作包括如下至少一项:
下变频和上变频;
基带频偏补偿;
频域抽样。
可选的,所述下变频和上变频,包括:
基于第一频率进行下变频和基于第二频率进行上变频;
其中,所述第一频率和所述第二频率相同,或者,所述第一频率和所述第二频率不同。
可选的,在所述第一频率和所述第二频率不同的情况下,所述第一频率和所述第二频率的差值由所述第二设备向所述第一设备指示。
可选的,所述第二设备所述第一设备发送所述第二信号之前,射频装置1302还用于:
接收所述第一设备发送的请求消息,所述请求消息用于请求第二设备参与多普勒测量。
可选的,所述第二设备所述第一设备发送所述第二信号之前,射频装置1302还用于:
向所述第一设备发送响应消息,所述响应消息用于指示所述第二设备参与多普勒测量,或者,所述响应消息用于指示如下至少一项:所述第二设备拒绝参与多普勒测量、所述第二设备拒绝参与多普勒测量的原因;
其中,射频装置1302在所述响应消息指示所述第二设备参与多普勒测量的情况下,向所述第一设备发送所述第二信号。
可选的,所述第一信号的第一配置信息、所述第二信号的第二配置信息、所述第一操作中的至少一项为预先约定的;
或者,所述第二设备所述第一设备发送所述第二信号之前,射频装置1302还用于:
所述第二设备接收所述第一设备发送的配置信息,所述配置信息包括如下至少一项:
所述第一信号的第一配置信息、所述第二信号的第二配置信息、时域位置关系配置, 所述时域位置关系配置为所述第一信号与所述第二信号的时域位置关系配置。
可选的,所述第一配置信息包括所述第一信号对应的如下至少一项:
信号配置标识、波形、子载波间隔、保护间隔、频域起始位置、频域资源长度、频域资源间隔、时域起始位置、时域资源长度、时域资源间隔、信号功率、序列信息、信号方向;
所述第二配置信息包括所述第二信号对应的如下至少一项:
信号配置标识、波形、子载波间隔、保护间隔、频域起始位置、频域资源长度、频域资源间隔、时域起始位置、时域资源长度、时域资源间隔、信号功率、序列信息、信号方向;
所述时域位置关系配置包括如下至少一项:
所述第一信号的时域起始位置与所述第二信号的时域起始位置的时间间隔;
所述第一信号的时域结束位置与所述第二信号的时域起始位置的时间间隔;
所述第一信号的时域结束位置与所述第二信号的时域结束位置的时间间隔;
所述第一信号的时域起始位置与所述第二信号的时域结束位置的时间间隔。
可选的,所述第二设备所述第一设备发送所述第二信号之前,射频装置1302还用于:
所述第二设备接收所述第一设备发送的第一指示信息,所述第一指示信息用于指示所述第二设备对接收到的所述第一信号进行所述第一操作。
可选的,所述第一指示信息包括如下至少一项:
晶振频率调整指示、频偏补偿指示、频域抽取指示、所述第一信号的信号配置标识、门限指示;
其中,所述晶振频率调整指示用于禁止所述第二设备对接收到的所述第一信号进行晶振频率调整;或者,所述晶振频率调整指示用于允许所述第二设备对接收到的所述第一信号进行晶振频率调整,或者,所述晶振频率调整指示用于指示所述第二设备向所述第一设备指示第一频率和第二频率的差值,所述第一频率为所述第二设备对所述第一信号进行下变频的频率,所述第二频率为所述第二设备对所述第一信号进行上变频的频率;
所述频偏补偿指示用于禁止所述第二设备对接收到的所述第一信号进行基带频偏补偿;或者,所述频偏补偿指示用于允许所述第二设备对接收到的所述第一信号进行基带频偏补偿,或者,所述频偏补偿指示用于指示所述第二设备向所述第一设备指示基带频偏补偿值;
所述频域抽取指示用于频域抽取规则;
所述门限指示用于指示性能指标门限。
可选的,所述第二设备所述第一设备发送所述第二信号之前之后,射频装置1302还用于如下至少一项:
向所述第一设备发送性能指标信息,所述性能指标信息为针对所述第一信号进行测量得到的性能指标信息;
向所述第二设备发送第二指示信息,所述第二指示信息用于指示如下至少一项:
对所述第一信号进行配置调整、往返多普勒测量失败。
可选的,所述性能指标信息包括如下至少一项:
信号强度信息、信号与干扰和噪声比SINR信息、SNR信息、感知SNR信息、感知SINR信息。
可选的,射频装置1302还用于:
在所述性能指标信息不满足预设门限条件的情况下,接收所述第一设备发送的第三指示信息,所述第三指示信息用于指示如下至少一项:
对所述第一信号进行配置调整、往返多普勒测量失败。
上述通信设备可以提高多普勒测量准确性。
本申请实施例还提供了一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现本申请实施例提供的上述多普勒测量方法的步骤。
其中,所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质,包括计算机可读存储介质,如计算机只读存储器ROM、随机存取存储器RAM、磁碟或者光盘等。
本申请实施例另提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现上述多普勒测量方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
应理解,本申请实施例提到的芯片还可以称为系统级芯片,系统芯片,芯片系统或片上系统芯片等。
本申请实施例另提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现上述多普勒测量方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供了一种信息传输系统,包括:第一设备和第二设备,所述第一设备可用于执行如本申请实施例提供的第一设备侧的多普勒测量方法的步骤,所述第二设备可用于执行如本申请实施例提供的第二设备侧的多普勒测量方法的步骤。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外,需要指出的是,本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能,还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能,例如,可以按不同于所描述的次序来执行所描述的方法,并且还可以添加、省去、或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以计算机软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端(可以是手机,计算机,服务器,空调器,或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述,但是本申请并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本申请的启示下,在不脱离本申请宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本申请的保护之内。

Claims (40)

  1. 一种多普勒测量方法,包括:
    第一设备向第二设备发送第一信号;
    所述第一设备接收所述第二设备发送的第二信号,其中,所述第二信号为所述第二设备针对所述第一信号执行第一操作得到的信号;
    所述第一设备基于所述第二信号进行多普勒测量。
  2. 如权利要求1所述的方法,其中,所述第一信号和所述第二信号的时域资源格式相同。
  3. 如权利要求2所述的方法,其中,所述时域资源格式相同包括如下至少一项:
    时域资源长度相同、时域资源间隔相同;
    其中,所述第一信号的时域资源间隔是指所述第一信号对应的相邻两个时域资源单元之间的间隔,所述第二信号的时域资源间隔是指所述第二信号对应的相邻两个时域资源单元之间的间隔。
  4. 如权利要求3所述的方法,其中,所述第一信号和所述第二信号的时域资源长度与预设多普勒分辨率关联;和/或,
    所述第一信号的时域资源间隔与预设最大无模糊多普勒频移关联,所述第二信号的时域资源间隔与所述预设最大无模糊多普勒频移关联。
  5. 如权利要求4所述的方法,其中,所述第一信号和所述第二信号的时域资源长度大于或者等于第一值,所述第一值为1除以所述预设多普勒分辨率的取值;
    所述第一信号的时域资源间隔小于或者等于第二值,所述第二信号的时域资源间隔小于或者等于所述第二值;其中,所述第二值为1除以第三值的取值,所述第三值等于2倍所述预设最大无模糊多普勒频移,或者,所述第三值为4倍第四值,所述第四值为所述预设最大无模糊多普勒频移的积的绝对值。
  6. 如权利要求4所述的方法,其中,所述预设多普勒分辨率和所述预设最大无模糊多普勒频移中的至少一项是根据感知需求确定。
  7. 如权利要求4所述的方法,其中,所述第一信号和所述第二信号的时域资源总长度小于或者等于预设信道稳定时间;和/或,
    所述第二信号与所述第一信号的发送时间间隔小于或者等于预设时间间隔;和/或
    所述第二信号的时域起始位置不晚于预设时间位置。
  8. 如权利要求1至7中任一项所述的方法,其中,所述第一操作包括如下至少一项:
    下变频和上变频;
    基带频偏补偿;
    频域抽样。
  9. 如权利要求8所述的方法,其中,所述下变频和上变频,包括:
    基于第一频率进行下变频和基于第二频率进行上变频;
    其中,所述第一频率和所述第二频率相同,或者,所述第一频率和所述第二频率不同。
  10. 如权利要求9所述的方法,其中,在所述第一频率和所述第二频率不同的情况下,所述第一频率和所述第二频率的差值由所述第二设备向所述第一设备指示。
  11. 如权利要求1至7中任一项所述的方法,其中,所述第一设备接收所述第二设备发送的第二信号之前,所述方法还包括:
    所述第一设备向所述第二设备发送请求消息,所述请求消息用于请求第二设备参与多普勒测量。
  12. 如权利要求11所述的方法,其中,所述第一设备接收所述第二设备发送的第二信号之前,所述方法还包括:
    所述第一设备接收所述第二设备发送的响应消息,所述响应消息用于指示所述第二设备参与多普勒测量,或者,所述响应消息用于指示如下至少一项:所述第二设备拒绝参与多普勒测量、所述第二设备拒绝参与多普勒测量的原因;
    其中,所述第一设备在所述响应消息指示所述第二设备参与多普勒测量的情况下,接收所述第二设备发送的所述第二信号。
  13. 如权利要求1至7中任一项所述的方法,其中,所述第一信号的第一配置信息、所述第二信号的第二配置信息、所述第一操作中的至少一项为预先约定的;
    或者,所述第一设备接收所述第二设备发送的第二信号之前,所述方法还包括:
    所述第一设备向所述第二设备发送配置信息,所述配置信息包括如下至少一项:
    所述第一信号的第一配置信息、所述第二信号的第二配置信息、时域位置关系配置,所述时域位置关系配置为所述第一信号与所述第二信号的时域位置关系配置。
  14. 如权利要求13所述的方法,其中,所述第一配置信息包括所述第一信号对应的如下至少一项:
    信号配置标识、波形、子载波间隔、保护间隔、频域起始位置、频域资源长度、频域资源间隔、时域起始位置、时域资源长度、时域资源间隔、信号功率、序列信息、信号方向;
    所述第二配置信息包括所述第二信号对应的如下至少一项:
    信号配置标识、波形、子载波间隔、保护间隔、频域起始位置、频域资源长度、频域资源间隔、时域起始位置、时域资源长度、时域资源间隔、信号功率、序列信息、信号方向;
    所述时域位置关系配置包括如下至少一项:
    所述第一信号的时域起始位置与所述第二信号的时域起始位置的时间间隔;
    所述第一信号的时域结束位置与所述第二信号的时域起始位置的时间间隔;
    所述第一信号的时域结束位置与所述第二信号的时域结束位置的时间间隔;
    所述第一信号的时域起始位置与所述第二信号的时域结束位置的时间间隔。
  15. 如权利要求1至7中任一项所述的方法,其中,所述第一设备接收所述第二设备发送的第二信号之前,所述方法还包括:
    所述第一设备向所述第二设备发送第一指示信息,所述第一指示信息用于指示所述第二设备对接收到的所述第一信号进行所述第一操作。
  16. 如权利要求15所述的方法,其中,所述第一指示信息包括如下至少一项:
    晶振频率调整指示、频偏补偿指示、频域抽取指示、所述第一信号的信号配置标识、门限指示;
    其中,所述晶振频率调整指示用于禁止所述第二设备对接收到的所述第一信号进行晶振频率调整;或者,所述晶振频率调整指示用于允许所述第二设备对接收到的所述第一信号进行晶振频率调整,或者,所述晶振频率调整指示用于指示所述第二设备向所述第一设备指示第一频率和第二频率的差值,所述第一频率为所述第二设备对所述第一信号进行下变频的频率,所述第二频率为所述第二设备对所述第一信号进行上变频的频率;
    所述频偏补偿指示用于禁止所述第二设备对接收到的所述第一信号进行基带频偏补偿;或者,所述频偏补偿指示用于允许所述第二设备对接收到的所述第一信号进行基带频偏补偿,或者,所述频偏补偿指示用于指示所述第二设备向所述第一设备指示基带频偏补偿值;
    所述频域抽取指示用于频域抽取规则;
    所述门限指示用于指示性能指标门限。
  17. 如权利要求1至7中任一项所述的方法,其中,所述第一设备向第二设备发送第一信号之后,所述方法还包括如下至少一项:
    所述第一设备接收所述第二设备发送的性能指标信息,所述性能指标信息为针对所述第一信号进行测量得到的性能指标信息;
    所述第一设备接收所述第二设备发送的第二指示信息,所述第二指示信息用于指示如下至少一项:
    对所述第一信号进行配置调整、往返多普勒测量失败。
  18. 如权利要求17所述的方法,其中,所述性能指标信息包括如下至少一项:
    信号强度信息、信号与干扰和噪声比SINR信息、信噪比SNR信息、感知SNR信息、感知SINR信息。
  19. 如权利要求17所述的方法,其中,所述方法还包括:
    在所述性能指标信息不满足预设门限条件的情况下,所述第一设备向所述第二设备发送第三指示信息,所述第三指示信息用于指示如下至少一项:
    对所述第一信号进行配置调整、往返多普勒测量失败。
  20. 如权利要求1至7中任一项所述的方法,其中,所述方法还包括:
    所述第一设备基于多普勒测量结果,获取感知测量结果。
  21. 如权利要求1至7中任一项所述的方法,其中,所述第一信号为上行信号,所述 第二信号为下行信号;或者,
    所述第一信号为下行信号,所述第二信号为上行信号。
  22. 如权利要求1至7中任一项所述的方法,其中,所述第一信号包括如下至少一项:
    参考信号、通信数据信号、同步信号、感知信号、通感一体化信号。
  23. 一种多普勒测量方法,包括:
    第二设备接收第一设备发送的第一信号;
    所述第二设备针对所述第一信号执行第一操作得到的第二信号;
    所述第二设备向所述第一设备发送所述第二信号。
  24. 如权利要求23所述的方法,其中,所述第一操作包括如下至少一项:
    下变频和上变频;
    基带频偏补偿;
    频域抽样。
  25. 如权利要求24所述的方法,其中,所述下变频和上变频,包括:
    基于第一频率进行下变频和基于第二频率进行上变频;
    其中,所述第一频率和所述第二频率相同,或者,所述第一频率和所述第二频率不同。
  26. 如权利要求25所述的方法,其中,在所述第一频率和所述第二频率不同的情况下,所述第一频率和所述第二频率的差值由所述第二设备向所述第一设备指示。
  27. 如权利要求23至26中任一项所述的方法,其中,所述第二设备所述第一设备发送所述第二信号之前,所述方法还包括:
    所述第二设备接收所述第一设备发送的请求消息,所述请求消息用于请求第二设备参与多普勒测量。
  28. 如权利要求27所述的方法,其中,所述第二设备所述第一设备发送所述第二信号之前,所述方法还包括:
    所述第二设备向所述第一设备发送响应消息,所述响应消息用于指示所述第二设备参与多普勒测量,或者,所述响应消息用于指示如下至少一项:所述第二设备拒绝参与多普勒测量、所述第二设备拒绝参与多普勒测量的原因;
    其中,所述第二设备在所述响应消息指示所述第二设备参与多普勒测量的情况下,向所述第一设备发送所述第二信号。
  29. 如权利要求23至26中任一项所述的方法,其中,所述第一信号的第一配置信息、所述第二信号的第二配置信息、所述第一操作中的至少一项为预先约定的;
    或者,所述第二设备所述第一设备发送所述第二信号之前,所述方法还包括:
    所述第二设备接收所述第一设备发送的配置信息,所述配置信息包括如下至少一项:
    所述第一信号的第一配置信息、所述第二信号的第二配置信息、时域位置关系配置,所述时域位置关系配置为所述第一信号与所述第二信号的时域位置关系配置。
  30. 如权利要求29所述的方法,其中,所述第一配置信息包括所述第一信号对应的如 下至少一项:
    信号配置标识、波形、子载波间隔、保护间隔、频域起始位置、频域资源长度、频域资源间隔、时域起始位置、时域资源长度、时域资源间隔、信号功率、序列信息、信号方向;
    所述第二配置信息包括所述第二信号对应的如下至少一项:
    信号配置标识、波形、子载波间隔、保护间隔、频域起始位置、频域资源长度、频域资源间隔、时域起始位置、时域资源长度、时域资源间隔、信号功率、序列信息、信号方向;
    所述时域位置关系配置包括如下至少一项:
    所述第一信号的时域起始位置与所述第二信号的时域起始位置的时间间隔;
    所述第一信号的时域结束位置与所述第二信号的时域起始位置的时间间隔;
    所述第一信号的时域结束位置与所述第二信号的时域结束位置的时间间隔;
    所述第一信号的时域起始位置与所述第二信号的时域结束位置的时间间隔。
  31. 如权利要求23至26中任一项所述的方法,其中,所述第二设备所述第一设备发送所述第二信号之前,所述方法还包括:
    所述第二设备接收所述第一设备发送的第一指示信息,所述第一指示信息用于指示所述第二设备对接收到的所述第一信号进行所述第一操作。
  32. 如权利要求31所述的方法,其中,所述第一指示信息包括如下至少一项:
    晶振频率调整指示、频偏补偿指示、频域抽取指示、所述第一信号的信号配置标识、门限指示;
    其中,所述晶振频率调整指示用于禁止所述第二设备对接收到的所述第一信号进行晶振频率调整;或者,所述晶振频率调整指示用于允许所述第二设备对接收到的所述第一信号进行晶振频率调整,或者,所述晶振频率调整指示用于指示所述第二设备向所述第一设备指示第一频率和第二频率的差值,所述第一频率为所述第二设备对所述第一信号进行下变频的频率,所述第二频率为所述第二设备对所述第一信号进行上变频的频率;
    所述频偏补偿指示用于禁止所述第二设备对接收到的所述第一信号进行基带频偏补偿;或者,所述频偏补偿指示用于允许所述第二设备对接收到的所述第一信号进行基带频偏补偿,或者,所述频偏补偿指示用于指示所述第二设备向所述第一设备指示基带频偏补偿值;
    所述频域抽取指示用于频域抽取规则;
    所述门限指示用于指示性能指标门限。
  33. 如权利要求23至26中任一项所述的方法,其中,所述第二设备所述第一设备发送所述第二信号之前之后,所述方法还包括如下至少一项:
    所述第二设备向所述第一设备发送性能指标信息,所述性能指标信息为针对所述第一信号进行测量得到的性能指标信息;
    所述第二设备向所述第二设备发送第二指示信息,所述第二指示信息用于指示如下至少一项:
    对所述第一信号进行配置调整、往返多普勒测量失败。
  34. 如权利要求33所述的方法,其中,所述性能指标信息包括如下至少一项:
    信号强度信息、信号与干扰和噪声比SINR信息、SNR信息、感知SNR信息、感知SINR信息。
  35. 如权利要求34所述的方法,其中,所述方法还包括:
    在所述性能指标信息不满足预设门限条件的情况下,所述第二设备接收所述第一设备发送的第三指示信息,所述第三指示信息用于指示如下至少一项:
    对所述第一信号进行配置调整、往返多普勒测量失败。
  36. 一种多普勒测量装置,包括:
    第一发送模块,用于向第二设备发送第一信号;
    第一接收模块,用于接收所述第二设备发送的第二信号,其中,所述第二信号为所述第二设备针对所述第一信号执行第一操作得到的信号;
    测量模块,用于基于所述第二信号进行多普勒测量。
  37. 一种多普勒测量装置,包括:
    第一接收模块,用于接收第一设备发送的第一信号;
    执行模块,用于针对所述第一信号执行第一操作得到的第二信号;
    第一发送模块,用于向所述第一设备发送所述第二信号。
  38. 一种通信设备,包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求1至22任一项所述的多普勒测量方法的步骤。
  39. 一种通信设备,包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求23至35任一项所述的多普勒测量方法的步骤。
  40. 一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如权利要求1至22任一项所述的多普勒测量方法的步骤,或者,所述程序或指令被处理器执行时实现如权利要求23至35任一项所述的多普勒测量方法的步骤。
PCT/CN2023/123168 2022-10-10 2023-10-07 多普勒测量方法、装置及通信设备 WO2024078378A1 (zh)

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