Information processing method, information configuration method, information processing device, information configuration device and communication equipment

Abstract

The invention discloses an information processing method and device, a configuration method and device and communication equipment, and belongs to the technical field of communication, and the information processing method comprises the steps that first equipment receives first information sent by second equipment; the first information is used for configuring or indicating a first resource and a first signal parameter of a first signal, and the first signal is a signal for sensing or positioning; sending the first signal to a fourth device on the first resource according to the first signal parameter; wherein the time domain resource of the first resource comprises a plurality of time units, and the plurality of time units satisfy the following conditions: the fourth device can complete at least one phase measurement on each of at least two time units, and can complete at least one antenna switching among different time units; or, the frequency domain resource of the first resource satisfies that the first signal comprises at least two parts, and the at least two parts are located at unequal central frequency points.

Description

Technical Field

[0001] This application belongs to the field of communication technologies, and particularly relates to an information processing method, a configuration method, an apparatus, and a communication device. Background Art

[0002] In related technologies, for the sensing or positioning of backscatter communication (BSC) devices, the signal phase emitted by a BSC device is usually measured simultaneously by multiple receiving antennas to estimate the angle of arrival of the signal, thereby realizing the sensing or positioning of the BSC device. However, since multiple antennas are required to receive signals simultaneously, this places relatively high requirements on the receiving end, and the modulation delay and random initial phase introduced by the BSC device cannot be compensated, resulting in inaccurate sensing or positioning of the BSC device. Summary of the Invention

[0003] Embodiments of this application provide an information processing method, a configuration method, an apparatus, and a communication device, which can solve the problem in related technologies of inaccurate sensing or positioning of BSC devices.

[0004] In a first aspect, an information processing method is provided, which is executed by a first device. The method includes:

[0005] The first device receives first information sent by a second device; where the first information is used to configure or indicate a first resource and first signal parameters of a first signal, and the first signal is a signal for sensing or positioning;

[0006] The first device sends the first signal to a fourth device on the first resource according to the first signal parameters;

[0007] Wherein, the time domain resource of the first resource includes multiple time units, and the multiple time units satisfy the following conditions: the fourth device can complete at least one phase measurement on at least two time units, and can complete at least one antenna switch between different time units;

[0008] Alternatively, the frequency domain resource of the first resource satisfies: the first signal includes at least two parts, and the at least two parts are located at unequal center frequencies.

[0009] In a second aspect, an information processing method is provided, which is executed by a third device. The method includes:

[0010] The third device receives second information sent by the second device; where the second information is used to configure or indicate a second resource and second signal parameters of a second signal;

[0011] The third device sends the second signal to the first device on the second resource according to the second signal parameter; wherein, the second signal is used to generate a first signal through backscattering, and the first signal is a signal for sensing or positioning.

[0012] Wherein, the time domain resource of the second resource includes a plurality of time units, and the plurality of time units satisfy the following conditions: a fourth device for receiving the first signal can complete at least one phase measurement on at least two time units, and can complete at least one antenna switch between different time units.

[0013] Alternatively, the frequency domain resource of the second resource satisfies: the center frequency of the second signal is related to the center frequency of the first signal, the first signal includes at least two parts, and the at least two parts are located at unequal center frequencies.

[0014] In a third aspect, an information processing method is provided, which is executed by a fourth device, and the method includes:

[0015] The fourth device receives third information sent by the second device; wherein, the third information is used to configure or indicate a first resource and a first signal parameter of the first signal.

[0016] The fourth device receives the first signal sent by the first device on the first resource according to the first signal parameter.

[0017] The fourth device performs sensing or positioning according to the first signal.

[0018] In a fourth aspect, an information configuration method is provided, which is executed by a second device, and the method includes:

[0019] The second device performs a first operation.

[0020] Wherein, the first operation includes at least one of the following: sending first information to the first device, sending second information to the third device, and sending third information to the fourth device.

[0021] Wherein, the first information or the third information is used to configure or indicate a first resource and a first signal parameter of the first signal, and the second information is used to configure or indicate a second resource and a second signal parameter of the second signal; the second signal is a radio frequency carrier signal of the first signal, and the first signal is a signal for sensing or positioning.

[0022] In a fifth aspect, an information processing device is provided, including:

[0023] A first receiving module, configured to receive first information sent by a second device; wherein, the first information is used to configure or indicate a first resource and first signal parameters of a first signal, and the first signal is a signal for sensing or positioning.

[0024] A first transmitting module, configured to transmit the first signal to a fourth device on the first resource according to the first signal parameters.

[0025] Wherein, the time domain resources of the first resource include a plurality of time units, and the plurality of time units satisfy the following conditions: the fourth device can complete at least one phase measurement on at least two time units respectively, and can complete at least one antenna switch between different time units.

[0026] Alternatively, the frequency domain resources of the first resource satisfy: the first signal includes at least two parts, and the at least two parts are located at unequal center frequencies.

[0027] In a sixth aspect, an information processing apparatus is provided, including:

[0028] A second receiving module, configured to receive second information sent by a second device; wherein, the second information is used to configure or indicate a second resource and second signal parameters of a second signal.

[0029] A second transmitting module, configured to transmit the second signal to a first device on the second resource according to the second signal parameters; wherein, the second signal is used to generate a first signal through backscattering, and the first signal is a signal for sensing or positioning.

[0030] Wherein, the time domain resources of the second resource include a plurality of time units, and the plurality of time units satisfy the following conditions: the fourth device for receiving the first signal can complete at least one phase measurement on at least two time units respectively, and can complete at least one antenna switch between different time units.

[0031] Alternatively, the frequency domain resources of the second resource satisfy: the center frequency of the second signal is related to the center frequency of the first signal, and the first signal includes at least two parts, and the at least two parts are located at unequal center frequencies.

[0032] In a seventh aspect, an information processing apparatus is provided, including:

[0033] A third receiving module, configured to receive third information sent by a second device; wherein, the third information is used to configure or indicate a first resource and first signal parameters of a first signal.

[0034] A fourth receiving module, configured to receive the first signal sent by the first device on the first resource according to the first signal parameters.

[0035] An execution module, configured to perform sensing or positioning according to the first signal.

[0036] In a ninth aspect, an information configuration device is provided, including:

[0037] A third sending module, configured to perform a first operation, where the first operation includes at least one of the following: sending first information to a first device, sending second information to a third device, and sending third information to a fourth device;

[0038] wherein the first information or the third information is used to configure or indicate a first resource and first signal parameters of a first signal, and the second information is used to configure or indicate a second resource and second signal parameters of a second signal; the second signal is a radio frequency carrier signal of the first signal, and the first signal is a signal for sensing or positioning.

[0039] In a tenth aspect, a communication device is provided, where the communication device includes a processor and a memory, the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, it implements the steps of the method described in the first aspect, or implements the steps of the method described in the second aspect, or implements the steps of the method described in the third aspect, or implements the steps of the method described in the fourth aspect.

[0040] In a tenth aspect, a communication device is provided, including a processor and a communication interface. When the communication device is a first device, the communication interface is configured to receive first information sent by a second device, where the first information is used to configure or indicate a first resource and first signal parameters of a first signal, the first signal being a signal for sensing or positioning, and to send the first signal on the first resource to a fourth device according to the first signal parameters. Alternatively, when the communication device is a third device, the communication interface is configured to receive second information sent by the second device, where the second information is used to configure or indicate a second resource and second signal parameters of a second signal, and to send the second signal on the second resource to the first device according to the second signal parameters, the second signal being used to generate the first signal through backscattering. Alternatively, when the communication device is a fourth device, the communication interface is configured to receive third information sent by the second device, where the third information is used to configure or indicate the first resource and first signal parameters of the first signal, and to receive the first signal sent by the first device on the first resource according to the first signal parameters; the processor is configured to perform sensing or positioning according to the first signal. Alternatively, when the communication device is the second device, the communication interface is configured to perform a first operation, where the first operation includes at least one of the following: sending the first information to the first device, sending the second information to the third device, and sending the third information to the fourth device. Wherein, the time domain resource of the first resource or the second resource includes a plurality of time units, and the plurality of time units satisfy the following conditions: the fourth device can complete at least one phase measurement on at least two time units and can complete at least one antenna switch between different time units; alternatively, the frequency domain resource of the first resource satisfies: the first signal includes at least two parts, and the at least two parts are located at unequal center frequencies.

[0041] In an eleventh aspect, a readable storage medium is provided, where a program or instructions are stored on the readable storage medium, and when the program or instructions are executed by a processor, the steps of the method described in the first aspect, or the steps of the method described in the second aspect, or the steps of the method described in the third aspect, or the steps of the method described in the fourth aspect are implemented.

[0042] In a twelfth aspect, a wireless communication system is provided, including at least two of a first device, a second device, a third device, and a fourth device. The first device can be used to execute the steps of the method described in the first aspect, the third device can be used to execute the steps of the method described in the second aspect, the fourth device can be used to execute the steps of the method described in the third aspect, and the second device can be used to execute the steps of the method described in the fourth aspect.

[0043] In a thirteenth aspect, a chip is provided. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is configured to run programs or instructions to implement the steps of the method described in the first aspect, or the steps of the method described in the second aspect, or the steps of the method described in the third aspect, or the steps of the method described in the fourth aspect.

[0044] In a fourteenth aspect, a computer program / program product is provided. The computer program / program product is stored in a storage medium. The program / program product is executed by at least one processor to implement the steps of the method described in the first aspect, or the steps of the method described in the second aspect, or the steps of the method described in the third aspect, or the steps of the method described in the fourth aspect.

[0045] Through the solution of the embodiments of the present application, time-division phase measurement can be performed using multiple antennas to estimate the angle of the BSC device, or ranging can be achieved based on the absolute phase or carrier phase difference, thereby accurately realizing the perception or positioning of the BSC device. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 is a block diagram of a wireless communication system to which the embodiments of the present application can be applied;

[0047] Figure 2A is a schematic diagram of a monostatic backscatter communication system according to an embodiment of the present application;

[0048] Figure 2B is a schematic diagram of a bistatic backscatter communication system according to an embodiment of the present application;

[0049] Figure 3A 、 Figure 3B 、 Figure 3C 、 Figure 3D 、 Figure 3E 、 Figure 3F 、 Figure 3G and Figure 3H are schematic diagrams of the architecture of a backscatter communication system according to embodiments of the present application;

[0050] Figure 4 is a flowchart of an information processing method provided by an embodiment of the present application;

[0051] Figure 5 is a flowchart of another information processing method provided by an embodiment of the present application;

[0052] Figure 6 is a flowchart of another information processing method provided by an embodiment of the present application;

[0053] Figure 7It is a flowchart of an information configuration method provided by an embodiment of the present application;

[0054] Figure 8A , Figure 8B and Figure 8C are schematic diagrams in specific embodiments of the present application;

[0055] Figure 9 is a schematic structural diagram of an information processing device provided by an embodiment of the present application;

[0056] Figure 10 is a schematic structural diagram of another information processing device provided by an embodiment of the present application;

[0057] Figure 11 is a schematic structural diagram of another information processing device provided by an embodiment of the present application;

[0058] Figure 12 is a schematic structural diagram of an information configuration device provided by an embodiment of the present application;

[0059] Figure 13 is a schematic structural diagram of a communication device provided by an embodiment of the present application. Detailed Embodiments

[0060] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0061] The terms "first", "second", etc. in the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are usually of the same category, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "or" in the present application means at least one of the connected objects. For example, "A or B" covers three scenarios, namely, Scenario 1: including A and not including B; Scenario 2: including B and not including A; Scenario 3: including both A and B. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0062] The term "indication" in this application can be either a direct indication (or an explicit indication) or an indirect indication (or an implicit indication). Among them, a direct indication can be understood as that the sender clearly tells the receiver specific information, operations to be performed, request results, etc. in the sent indication; an indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or makes a judgment and determines the operations to be performed or request results, etc. according to the judgment result.

[0063] It should be noted that the technology described in the embodiments of this application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, and can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), or other systems. The terms "system" and "network" in the embodiments of this application are often used interchangeably, and the described technology can be used not only in the systems and radio technologies mentioned above, but also in other systems and radio technologies. The following description describes the New Radio (NR) system for example purposes, and uses the NR term in most of the following descriptions, but these technologies can also be applied to systems other than the NR system, such as the 6th Generation (6G) communication system. th Generation, 6G) communication system.

[0064] Figure 1Block diagram of a wireless communication system to which embodiments of the present application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12. Among them, the terminal 11 can be a mobile phone, a tablet personal computer, a laptop computer, a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device, a flight vehicle, a vehicle user equipment (VUE), a shipborne device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, TVs, washing machines, or furniture, etc.), a game console, a personal computer (PC), a teller machine, or a self-service machine, etc. Wearable devices include: smart watches, smart bracelets, smart earphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart ankle chains, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle user equipment can also be referred to as a vehicle terminal, a vehicle controller, a vehicle module, a vehicle component, a vehicle chip, or a vehicle unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device. Among them, the access network device can also be referred to as a radio access network (RAN) device, a radio access network function, or a radio access network unit. The access network device can include a base station, a wireless local area network (WLAN) access point (AP), or a wireless fidelity (WiFi) node, etc.Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home Node B (HNB), home evolved Node B, Transmission Reception Point (TRP), or some other suitable term in the art. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of this application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0065] To facilitate the understanding of the embodiments of this application, the following content is first described.

[0066] Backscatter Communication (BSC) refers to that backscatter communication devices use radio frequency signals in other devices or the environment for signal modulation to transmit their own information. The backscatter communication devices (which can be referred to as: BSC devices) can be, but are not limited to:

[0067] - BSC devices in traditional Radio Frequency Identification (RFID), generally a tag, belonging to passive Internet of Things (IoT) devices, that is, Passive-IoT;

[0068] - Semi-passive tags, such tags have a certain amplification ability for downlink reception or uplink reflection;

[0069] - Tags with active transmission capabilities (Active Tags), such tags can send information to the reader without relying on the reflection of the incident signal.

[0070] For backscatter communication, a simple implementation is as follows: When the Tag needs to send '1', it reflects the incident carrier signal. When the Tag needs to send '0', it does not reflect.

[0071] Optionally, the backscatter communication device can control the reflection coefficient of the circuit by adjusting its internal impedance, thereby changing the amplitude, frequency, phase, etc. of the incident signal to achieve signal modulation. By reasonably controlling the reflection coefficient, corresponding amplitude modulation, frequency modulation, and / or phase modulation can be achieved.

[0072] As Figure 2A shown, Figure 2A Shown is a monostatic backscatter communication system. A typical example is the traditional RFID system, which includes a BSC device (such as a Tag) and a reader / writer. The reader / writer includes an RF radio frequency source and a BSC receiver. The RF radio frequency source is used to generate an RF radio frequency signal (usually a continuous carrier CW, or called an excitation signal) to power the BSC device and provide a carrier. The BSC device modulates and backscatters the CW. After the BSC receiver in the reader / writer receives the backscattered signal, it demodulates the signal. Since the RF radio frequency source and the BSC receiver are in the same device, such as the reader / writer here, it is called a monostatic backscatter communication system. In this system, due to the double near-far effect caused by the signal attenuation of the round-trip signal for the RF radio frequency signal sent from the BSC device, the signal energy decays greatly. Therefore, the monostatic system is generally used for short-distance backscatter communication, such as traditional RFID applications.

[0073] Different from the monostatic backscatter communication system, the RF radio frequency source and the BSC receiver in the bistatic backscatter communication system are separated, as Figure 2B shown in the schematic diagram. Therefore, the bistatic backscatter communication system can avoid the problem of large round-trip signal attenuation. In addition, by reasonably placing the position of the RF radio frequency source, the performance of the backscatter communication system can be further improved.

[0074] In the cellular network, the backscatter communication system can be specifically divided into the following 8 architectures according to the differences in the RF radio frequency source, the uplink, and the downlink, as shown in Table 1 and Figures 3A to 3H shown below.

[0075] Table 1

[0076] architecture downlink uplink RF radio frequency source 1 Base station -> BSC device BSC device -> Base station Base station 2 Base station -> BSC device BSC device -> Relay -> Base station Base station 3-1a Base station -> BSC device BSC device -> UE -> Base station Base station 3-1b Base station -> BSC device BSC device -> UE -> Base station UE 3-2a Base station -> UE -> BSC device BSC device -> Base station Base station 3-2b Base station -> UE -> BSC device BSC device -> Base station UE 3-3a Base station -> UE -> BSC device BSC device -> UE -> Base station Base station 3-3b Base station -> UE -> BSC device BSC device -> UE -> Base station UE

[0077] In Architecture 1, as Figure 3AAs shown, the base station (such as gNB) is an RF radio frequency source, and also the downlink transmitter (i.e., the control command transmitter) of the BSC device and the uplink receiver (i.e., the BSC receiver) of the BSC device. That is, at this time, the base station communicates directly with the BSC device. This deployment architecture has high requirements for the receiving sensitivity of the base station and the BSC device, but the deployment is simple.

[0078] In Architecture 2, as Figure 3B shown, the base station (such as gNB) is an RF radio frequency source, but at this time there is a relay Helper / Relay for relaying the uplink from the BSC device to the base station. In addition, the Relay can also relay the downlink from the base station to the BSC device.

[0079] In Architecture 3, the UE can be used as an RF radio frequency source and for forwarding the downlink and uplink between the BSC device and the base station. Architecture 3 can be divided into the following architectures:

[0080] - In Architecture 3-1a, as Figure 3C shown, the base station (such as gNB) is an RF radio frequency source; in the downlink, the base station directly transmits downlink data to the BSC device; in the uplink, the BSC device first sends a backscattered signal to the UE, and then the UE forwards it to the base station.

[0081] - In Architecture 3-1b, as Figure 3D shown, the UE is an RF radio frequency source; in the downlink, the base station (such as gNB) directly transmits downlink data to the BSC device; in the uplink, the BSC device first sends a backscattered signal to the UE, and then the UE forwards it to the base station.

[0082] - In Architecture 3-2a, as Figure 3E shown, the base station (such as gNB) is an RF radio frequency source; in the downlink, the base station first sends downlink data to the UE, and then the UE forwards it to the BSC device; in the uplink, the BSC device directly sends a backscattered signal to the base station.

[0083] - In Architecture 3-2b, as Figure 3F shown, the UE is an RF radio frequency source; in the downlink, the base station (such as gNB) first sends downlink data to the UE, and then the UE forwards it to the BSC device; in the uplink, the BSC device directly sends a backscattered signal to the base station.

[0084] - In Architecture 3-3a, as Figure 3G shown, the base station (such as gNB) is an RF radio frequency source; in the downlink, the base station first sends downlink data to the UE, and then the UE forwards it to the BSC device; in the uplink, the BSC device first sends a backscattered signal to the UE, and then the UE forwards it to the base station.

[0085] - In Architecture 3-3b, as Figure 3HAs shown, the UE is an RF radio frequency source; in the downlink, the base station (such as gNB) first sends downlink data to the UE, and then the UE forwards it to the BSC device; in the uplink, the BSC device first sends a backscattered signal to the UE, and then the UE forwards it to the base station.

[0086] It should be noted that in Figures 3A to 3H , the thick arrow represents the downlink, the thin arrow represents the uplink, and the lightning symbol represents RF radio frequency. In the embodiment of this application, the scheme decouples the control command sender, RF radio frequency source, backscattered signal receiver, and BSC device, and can be used in all architectures under the above single- and dual-base backscatter communication systems and cellular networking.

[0087] Optionally, the scheme in this application can be applied to backscatter communication systems, including but not limited to RFID, LTE, NB-IoT, NR, IEEE 802.11 evolution systems, etc.

[0088] The scheme in this application involves four devices with different functions (only divided by function, the same device entity can undertake more than one function), which are respectively:

[0089] The first device: a low-power communication device such as a BSC device, which can be a passive device without energy storage ability, cannot generate radio frequency signals by itself and communicates based on backscatter technology; or a semi-passive device with a certain energy storage ability, cannot generate radio frequency signals by itself and communicates based on backscatter technology.

[0090] The second device: a control device for low-power communication, which can be a UE, a reader, a repeater, a relay, a base station, or other network elements, such as a device specifically responsible for the low-power communication function (Low Power Communication / LPC Function), or a network node running this function; there is no limitation on this.

[0091] The third device: a communication device that sends control signaling, radio frequency signals, or data, which can be a UE, a reader, a repeater, a relay, or a base station, etc. If the third device is not a base station, the signaling interaction between the second device and the third device may need to be completed through the associated base station of the third device, and the signaling interaction between the third device and the fourth device needs to be completed through the associated base station of the third device or through the sidelink. If the third device is a base station and the fourth device is also a base station, the signaling interaction between the third device and the fourth device can be completed through the communication interface between the base stations (such as the X2 / Xn interface, etc.). For the sake of simplicity of description in this application, the above process will not be elaborated in the following description.

[0092] Fourth device: A communication device that receives signals sent by a low-power communication device (i.e., the first device), which can be a UE, Reader, Repeater, Relay, or base station, etc. If the fourth device is not a base station, the signaling interaction between the second device and the fourth device may need to be completed through the associated base station of the fourth device, and the signaling interaction between the third device and the fourth device needs to be completed through the associated base station of the fourth device or through a sidelink. If the third device is a base station and the fourth device is also a base station, the signaling interaction between the third device and the fourth device can be completed through the communication interface between base stations (such as the X2 / Xn interface, etc.). For the sake of simplicity in the description of this application, the above processes will not be elaborated further in the following description.

[0093] It should be noted that if there is an entity device responsible for more than one of the above functions during deployment, the corresponding signaling interaction can be omitted. Without loss of generality, the following will elaborate on the case where the four devices are different entity devices, and this will not be elaborated further below.

[0094] The following will, in conjunction with the accompanying drawings, through some embodiments and their application scenarios, elaborate in detail on the information processing method, configuration method, device, and communication device provided by the embodiments of this application.

[0095] Please refer to Figure 4 , Figure 4 which is a flowchart of an information processing method provided by the embodiments of this application. This method is executed by the first device. As Figure 4 shown, this method includes the following steps:

[0096] Step 41: The first device receives the first information sent by the second device. The first information is used to configure or indicate the first resource and the first signal parameters of the first signal, and the first signal is a signal for sensing or positioning;

[0097] Step 42: The first device sends the first signal to the fourth device on the first resource according to the first signal parameters.

[0098] In the embodiments of this application, the first device is a low-power communication device such as a BSC device. The second device is the control device of the first device, which can be a UE, Reader, Repeater, Relay, or base station, etc., and can be the same as or different from the fourth device. The fourth device is a communication device that receives the signal sent by the first device, which can be a UE, Reader, Repeater, Relay, or base station, etc.

[0099] Optionally, the time-domain resource of the first resource includes multiple time units, and the multiple time units satisfy the following conditions: the fourth device can complete at least one phase measurement on at least two time units, and can complete at least one antenna switch between different time units. Thus, the simultaneous phase measurement of multiple antennas can be extended to time-division phase measurement. For example, when multiple antennas share one RF chain, time-division phase measurement is performed, so that after the fourth device measures the phases of multiple first signals using multiple antennas on multiple time units respectively, the measured phases are compensated according to the time intervals of the multiple first signals, so that the compensated phases are consistent with the phases when using multiple antennas for simultaneous measurement, and then the perception or positioning of the first device (such as a BSC device) can be accurately realized.

[0100] Optionally, the frequency-domain resource of the first resource satisfies that the first signal includes at least two parts, and the at least two parts are located at unequal center frequencies. Each part refers to decomposing the first signal into multiple sub-signals that do not overlap with each other in the frequency domain and have no non-zero support (i.e., the power spectral density is zero) in the ranges of [-infinity, the left frequency-domain range boundary] and [the right frequency-domain range boundary, +infinity]. Each sub-signal is each part. Thus, ranging can be realized based on the carrier phase difference, and then the perception or positioning of the first device (such as a BSC device) can be accurately realized.

[0101] Through the solution of the embodiments of the present application, time-division phase measurement using multiple antennas can be used to estimate the angle of the first device (such as a BSC device), or ranging can be realized based on the absolute phase or carrier phase difference, and then the perception or positioning of the BSC device can be accurately realized.

[0102] Optionally, when the first signal is obtained by backscattering the second signal, such as when the second signal is the RF carrier signal of the first signal and the first signal is the backscattering signal, the frequency-domain resource of the first resource can also satisfy that the mean value of the sum of the frequencies of all the center frequencies of the first signal is equal to the frequency of the center frequency of the second signal. For example, the third device can send the second signal to the first device so that the first device obtains the first signal by backscattering and sends it.

[0103] For example, if the first signal includes two parts located at unequal center frequencies, such as at unequal center frequencies f1 and f2, then the frequency of the center frequency of the second signal is half of the sum of f1 and f2. At this time, the first device can use double-sideband modulation (such as amplitude shift keying ASK, double-sideband amplitude shift keying DSB-ASK, etc.) to realize signal transmission.

[0104] Optionally, the first resource may include at least one of the following:

[0105] Time-domain resources, such as the transmission of the first signal being periodic, semi-periodic or aperiodic, and the signal length of the second signal, etc.;

[0106] Frequency-domain resources, such as including bandwidth, center frequency, frequency point, frequency band, frequency hopping sequence, Comb size, frequency-domain resource pattern, etc.;

[0107] Code-domain resources, such as including the type, length, index, generation method of Orthogonally Cover Code (OCC), Pseudo-Noise Code (PN code) or other code sequences.

[0108] Optionally, the first signal parameter is a transmission parameter configured for the first device, and may include but is not limited to at least one of the following:

[0109] The transmission power or reflection coefficient of the first signal;

[0110] The sequence information of the first signal, such as including sequence type, sequence generation method, sequence index, etc.;

[0111] The coding method of the first signal, such as including line coding, channel coding, etc.;

[0112] The coding code rate or coding code rate index of the first signal;

[0113] The modulation method of the first signal, such as including double-sideband modulation, single-sideband modulation, Amplitude Shift Keying (ASK) modulation, Phase Shift Keying (PSK) modulation, Frequency Shift Keying (FSK) modulation, Quadrature Amplitude Modulation (QAM), etc.;

[0114] The modulation order (or level) or modulation order index of the first signal;

[0115] The coding and modulation index of the first signal;

[0116] The demodulation reference signal or time-frequency reference signal of the first signal;

[0117] The preamble of the first signal, which is associated with the device identifier of the first device or the device identifier of the second device, so that the first device generates the corresponding first signal;

[0118] The synchronization sequence of the first signal, where the synchronization sequence is associated with the device identifier of the first device or the device identifier of the second device, so that the first device generates a corresponding first signal;

[0119] The device identifier information carried by the first signal, such as the device identifier information of the first device or the device identifier information of the second device, etc.;

[0120] The scrambling method of the first signal, such as the generation method of the scrambling sequence, etc.

[0121] Optionally, for the convenience of subsequent sensing or positioning, the information processing method in the embodiments of the present application may further include:

[0122] The first device reports at least one of the following to the second device or the fourth device: the modulation delay of the first signal, the phase when the second signal arrives at the first device; the second signal is the radio frequency carrier signal of the first signal.

[0123] Please refer to Figure 5 , Figure 5 is a flowchart of an information processing method provided by an embodiment of the present application. This method is executed by a third device. As Figure 5 shown, the method includes the following steps:

[0124] Step 51: The third device receives the second information sent by the second device, where the second information is used to configure or indicate the second resource and the second signal parameters of the second signal;

[0125] Step 52: The third device sends the second signal to the first device on the second resource according to the second signal parameters; the second signal is used to generate the first signal through backscattering, and the first signal is a signal for sensing or positioning.

[0126] In the embodiments of the present application, the third device is a communication device that sends control signaling, radio frequency signals or data, and may be a UE, Reader, Repeater, Relay or base station, etc. The first device is a low-power communication device such as a BSC device. The second device is a control device of the first device, and may be a UE, Reader, Repeater, Relay or base station, etc., and may be the same as or different from the fourth device. The fourth device is a communication device that receives the signal sent by the first device, and may be a UE, Reader, Repeater, Relay or base station, etc.

[0127] Optionally, the time-domain resources of the second resource include multiple time units, and the multiple time units satisfy the following conditions: a fourth device for receiving the first signal can complete at least one phase measurement on at least two time units respectively, and can complete at least one antenna switch between different time units. Thereby, the simultaneous phase measurement of multiple antennas can be extended to time-division phase measurement. For example, when multiple antennas share one RF Chain, time-division phase measurement is performed, so that after the fourth device measures the phases of multiple first signals, the measured phases are compensated according to the time intervals of the multiple first signals, so that the compensated phases are consistent with the phases when multiple antennas are used for simultaneous measurement, and further accurately realize the perception or positioning of the first device (such as a BSC device).

[0128] Optionally, the frequency-domain resources of the second resource satisfy: the center frequency of the second signal is related to the center frequency of the first signal, and the first signal includes at least two parts, and the at least two parts are located at unequal center frequencies. Thereby, ranging can be realized based on the carrier phase difference, and further accurately realize the perception or positioning of the first device (such as a BSC device).

[0129] Through the solution of the embodiments of the present application, time-division phase measurement can be performed using multiple antennas to estimate the angle of the first device (such as a BSC device), or ranging can be realized based on the absolute phase or carrier phase difference, and further accurately realize the perception or positioning of the BSC device.

[0130] Optionally, the mean value of the sum of the frequencies of all the center frequencies of the first signal is equal to the frequency of the center frequency of the second signal.

[0131] Optionally, the second resource may include at least one of the following:

[0132] Time-domain resources, such as including that the transmission of the first signal is periodic, semi-periodic or aperiodic, and the signal length of the second signal, etc.;

[0133] Frequency-domain resources, such as including bandwidth, center frequency, frequency point, frequency band, frequency hopping sequence, Comb size, frequency-domain resource pattern, etc.;

[0134] Code-domain resources, such as including the type, length, index, generation method of OCC, PN code or other code sequences, etc.

[0135] Optionally, the transmission parameters configured for the third device by the second signal parameters may include at least one of the following:

[0136] The transmission power of the second signal;

[0137] The sequence information of the second signal; for example, if the second signal is a non-single frequency signal, it can be sent in sequence form. In this case, the signal parameters include sequence information such as sequence type, generation method, sequence index, etc.

[0138] Please refer to Figure 6 , Figure 6 is a flowchart of an information processing method provided by an embodiment of this application. This method is executed by a fourth device, such as Figure 6 shown, this method includes the following steps:

[0139] Step 61: The fourth device receives third information sent by the second device. The third information is used to configure or indicate the first resource and the first signal parameters of the first signal.

[0140] Step 62: The fourth device receives the first signal sent by the first device on the first resource according to the first signal parameters.

[0141] Step 63: The fourth device performs sensing or positioning according to the first signal.

[0142] In an embodiment of this application, the first device is a low-power communication device such as a BSC device. The second device is a control device of the first device, which can be a UE, Reader, Repeater, Relay, or base station, etc., and can be the same as or different from the fourth device. The fourth device is a communication device that receives the signal sent by the first device, which can be a UE, Reader, Repeater, Relay, or base station, etc.

[0143] Optionally, the time domain resources of the first resource include multiple time units, and the multiple time units meet the following conditions: The fourth device can complete at least one phase measurement on at least two time units, and can complete at least one antenna switch between different time units. Thus, the simultaneous phase measurement of multiple antennas can be extended to time-division phase measurement. For example, when multiple antennas share 1 RF Chain, time-division phase measurement is performed, so that after the fourth device measures the phases of multiple first signals, it compensates the measured phases according to the time intervals of the multiple first signals, so that the compensated phases are the same as the phases when using multiple antennas for simultaneous measurement, and thus accurately realizes the sensing or positioning of the first device (such as a BSC device).

[0144] Optionally, the frequency-domain resources of the first resource satisfy that the first signal includes at least two parts located at unequal center frequencies. Each part refers to that the first signal is decomposed into multiple sub-signals that do not overlap with each other in the frequency domain and have no non-zero support in the ranges of [-infinity, left boundary of the frequency-domain range] and [right boundary of the frequency-domain range, +infinity]. Each sub-signal is each part. Thus, ranging can be achieved based on the carrier phase difference, and further, the perception or positioning of the first device (such as a BSC device) can be accurately realized.

[0145] Through the solution of the embodiments of the present application, time-division phase measurement can be performed using multiple antennas to estimate the angle of the first device (such as a BSC device), or ranging can be achieved based on the absolute phase or carrier phase difference, and further, the perception or positioning of the BSC device can be accurately realized.

[0146] Optionally, when the first signal is obtained by backscattering the second signal, such as when the second signal is the radio frequency carrier signal of the first signal, the frequency-domain resources of the first resource may further satisfy that the mean value of the sum of the frequencies of all the center frequencies of the first signal is equal to the frequency of the center frequency of the second signal. For example, the third device can send the second signal to the first device so that the first device obtains the first signal by backscattering and sends it.

[0147] Optionally, the first resource may include at least one of the following:

[0148] Time-domain resources, such as including that the transmission of the first signal is periodic, semi-periodic or aperiodic, and the signal length of the second signal, etc.;

[0149] Frequency-domain resources, such as including bandwidth, center frequency, frequency point, frequency band, frequency hopping sequence, Comb size, frequency-domain resource pattern, etc.;

[0150] Code-domain resources, such as including the type, length, index, generation method, etc. of OCC, PN code or other code sequences.

[0151] Optionally, the first signal parameter is a reception parameter configured for the fourth device, and may include but is not limited to at least one of the following:

[0152] The transmission power or reflection coefficient of the first signal;

[0153] The sequence information of the first signal, such as including sequence type, sequence generation method, sequence index, etc.;

[0154] The coding method of the first signal, such as including line coding, channel coding, etc.;

[0155] The coding code rate or coding code rate index of the first signal;

[0156] The modulation method of the first signal, such as including double-sideband modulation, single-sideband modulation, ASK modulation, PSK modulation, FSK modulation, QAM modulation, etc.;

[0157] The modulation order (or level) or modulation order index of the first signal;

[0158] The coding and modulation index of the first signal;

[0159] The demodulation reference signal or time-frequency reference signal of the first signal;

[0160] The preamble of the first signal, which is associated with the device identifier of the first device or the device identifier of the second device, so that the first device generates the corresponding first signal;

[0161] The synchronization sequence of the first signal, which is associated with the device identifier of the first device or the device identifier of the second device, so that the first device generates the corresponding first signal;

[0162] The device identifier information carried by the first signal, such as the device identifier information of the first device or the device identifier information of the second device, etc.;

[0163] The scrambling method of the first signal, such as the generation method of the scrambling sequence, etc.

[0164] Optionally, if the time-domain resources of the first resource include multiple time units, the multiple time units satisfy the following conditions: the fourth device can complete at least one phase measurement on at least two time units, and can complete at least one antenna switch between different time units. The above step 62 may include:

[0165] The fourth device receives the first signal sent by the first device on at least two time units by using at least two receiving antennas according to the first signal parameters. That is, the fourth device receives the first signal sent by the first device with different receiving antennas at different time units, and the fourth device completes the antenna switch within the time interval when the first device sends multiple first signals.

[0166] The above step 63 may include: First, the fourth device measures the phase of the first signal received by each of the at least two receiving antennas, and the phase measured here is the phase of the same frequency point; then, the fourth device determines the angle of arrival of the signal of the first device according to the phase of the first signal obtained by measurement and the time interval between the first signals received by the at least two receiving antennas. In this way, the angle of arrival of the signal of the first device can be determined based on the time-division phase measurement without the need for multiple antennas to receive signals simultaneously, thereby reducing the requirements for the receiving end (i.e., the fourth device).

[0167] Preferably, the number of receiving antennas is the same as the number of time units for transmitting the first signal / measuring the phase, so as to improve the accuracy of angle measurement. For example, two receiving antennas correspond to two time units for measuring the phase.

[0168] For example, if the phase of the first signal measured by the i-th antenna at the i-th time unit is and the phase of the first signal measured by the j-th antenna at the j-th time unit is and the absolute time difference between the i-th time unit and the j-th time unit is Δt ij , the distance between the i-th antenna and the j-th antenna is a ij , f is the frequency of the center frequency point of the first signal, then the calculated angle of arrival q of the signal ij can be as follows:

[0169]

[0170] In some embodiments, multiple sets of phases of the first signal measured by using at least two receiving antennas can be taken, and then multiple sets of angles of arrival of the signal of the first device can be calculated, and the final angle of arrival of the signal of the first device can be obtained through combined processing (such as taking the average value) to improve the reliability of angle measurement.

[0171] Optionally, the fourth device can calculate the angle of arrival of the signal by itself, or send the received first signal to the second device for calculation; for the latter, the fourth device needs to report the original received signal or the measured phase, as well as other calculation parameters, such as the antenna spacing, etc.

[0172] Optionally, ranging can be implemented based on the absolute phase, that is, the time of flight (ToF) of the signal is obtained by using the absolute phase measured by at least one antenna, and then the distance is obtained. The above step 62 may include:

[0173] The fourth device receives the first signal sent by the first device on the first resource by using at least one receiving antenna according to the first signal parameter.

[0174] Optionally, the above step 63 may include: First, the fourth device measures the phase of the first signal received by using the receiving antenna, that is, the absolute phase; then, the fourth device determines the phase difference of the first signal from the first device to the fourth device according to the measured phase of the first signal, the modulation delay of the first signal, and the phase when the second signal arrives at the first device, where the second signal is the radio frequency carrier signal of the first signal; finally, the fourth device determines the distance from the first device to the fourth device according to the phase difference.

[0175] For example, if the phase of the first signal is the modulation delay of the first signal is t Mod , and the phase of the second signal when it arrives at the first device is then the phase difference of the first signal from the first device to the fourth device is: Furthermore, the distance from the first device to the fourth device is: where f is the frequency of the center frequency point of the first signal.

[0176] Optionally, if the fourth device and the third device that sends the second signal are the same device, then step 63 above may include: First, the fourth device measures the first phase when the first signal arrives at the receiving antenna, and measures the second phase when the second signal is sent from the sending antenna, where the second signal is the radio frequency carrier signal of the first signal; Then, the fourth device determines the difference between the arrival phase of the first signal and the sending phase of the second signal according to the first phase, the second phase, and the phase of the second signal when it arrives at the first device; Finally, the fourth device determines the distance from the first device to the fourth device according to the difference between the arrival phase of the first signal and the sending phase of the second signal, and the frequencies of the first signal and the second signal.

[0177] For example, if the difference between the arrival phase of the first signal and the sending phase of the second signal is and the frequencies of the center frequency points of the first signal and the second signal are f1 and f2 respectively, then the distance from the first device to the fourth device is:

[0178] Optionally, the modulation delay of the first signal may be reported by the first device to the fourth device.

[0179] Optionally, the phase of the second signal when it arrives at the first device may be reported by the first device to the fourth device, or estimated by the fourth device (this applies when the fourth device and the third device that sends the second signal are the same device).

[0180] In the solution for ranging based on absolute phase, since the first device may introduce additional time delay (and thus additional phase) due to modulation, and the phase when the radio frequency signal arrives at the first device is unknown, it is necessary to compensate for this part of the additionally introduced phase or random phase. Therefore, ranging can be achieved based on the carrier phase difference. For example, if the first device performs double-sideband modulation, such as DSB-ASK modulation, then the first signal sent by the first device has two center frequencies. Then, the distance can be estimated by measuring the phase difference between these two center frequencies, or it can be called the ranging method based on the carrier phase difference. Thanks to the subtraction of phases, the additional phase introduced by the modulation of the first device and the random initial phase when the radio frequency carrier arrives will be eliminated.

[0181] Optionally, if the frequency domain resources of the first resource satisfy: the first signal includes at least two parts, and the at least two parts are located at unequal center frequencies, the above step 62 may include:

[0182] The fourth device respectively receives at least two parts of the first signal located at unequal center frequencies by using at least one receiving antenna according to the first signal parameters, so as to achieve ranging based on the phase difference at the unequal center frequencies.

[0183] The above step 64 may include:

[0184] First, the fourth device measures the first signal respectively at the at least two unequal center frequencies to obtain the phase difference of the first signal at the unequal center frequencies;

[0185] Then, the fourth device performs any one of the following:

[0186] (1) Determine the distance from the first device to the fourth device according to the phase difference and the specified frequency difference between different parts of the first signal; the specified frequency may be the center frequency (i.e., the frequency of the center frequency point) of the corresponding part in the first signal or other frequencies (i.e., other frequencies in the frequency range of the corresponding part except the center frequency); for example, if the phase difference is The frequency difference between the unequal center frequencies of the first signal is f a -f b , then the calculated distance is

[0187] (2) Determine the distance from the first device to the fourth device based on the phase difference, the phase difference of the first signal arriving at the receiving antenna, and the difference in specified frequencies of different parts of the first signal; the specified frequency may be the center frequency of the corresponding part of the first signal (i.e., the frequency of the center frequency point) or other frequencies other than the center frequency (i.e., other frequencies in the frequency range of the corresponding part other than the center frequency); at this time, it is applicable to consider the phase difference of the first signal arriving at the receiving antenna and compensate for the phase difference when calculating the distance.

[0188] (3) Determine the distance from the first device to the fourth device based on the phase difference, the interval between different receiving antennas, and the difference in specified frequencies of different parts of the first signal; the specified frequency may be the center frequency of the corresponding part of the first signal (i.e., the frequency of the center frequency point) or other frequencies other than the center frequency (i.e., other frequencies in the frequency range of the corresponding part other than the center frequency); at this time, it is applicable to the case of using multiple receiving antennas to receive / measure signals, and an additional compensation for the phase difference brought by different antennas is made when calculating the distance.

[0189] In some embodiments, multiple receiving antennas may be used to measure the first signal, and then multiple sets of distances from the first device to the fourth device are calculated and processed together (such as taking the average value) to obtain the final distance from the first device to the fourth device, so as to improve the reliability of distance measurement.

[0190] Optionally, the fourth device may calculate the distance from the first device to the fourth device by itself, or send the received first signal to the second device to complete the calculation; for the latter, the fourth device needs to report the original received signal or measured phase, etc.

[0191] Please refer to Figure 7 , Figure 7 which is a flowchart of an information configuration method provided by an embodiment of the present application. This method is executed by the second device. As Figure 7 shown, the method includes the following steps:

[0192] Step 71: The second device performs a first operation; the first operation includes at least one of the following: sending first information to the first device, sending second information to the third device, and sending third information to the fourth device.

[0193] In the embodiments of the present application, the first information or the third information is used to configure or indicate the first resource and the first signal parameters of the first signal, and the second information is used to configure or indicate the second resource and the second signal parameters of the second signal; the second signal is the radio frequency carrier signal of the first signal, and the first signal is the signal for sensing or positioning.

[0194] The first device is a low-power communication device such as a BSC device. The second device is a control device of the first device, which can be a UE, a Reader, a Repeater, a Relay or a base station, etc., and can be the same as or different from the fourth device. The third device is a communication device that sends control signaling, radio frequency signals or data, which can be a UE, a Reader, a Repeater, a Relay or a base station, etc. The fourth device is a communication device that receives the signal sent by the first device, which can be a UE, a Reader, a Repeater, a Relay or a base station, etc.

[0195] Optionally, the time-domain resource of the first resource includes multiple time units, and the multiple time units meet the following conditions: the fourth device can complete at least one phase measurement on at least two time units respectively, and can complete at least one antenna switch between different time units. Thus, the simultaneous phase measurement of multiple antennas can be extended to time-division phase measurement. For example, when multiple antennas share one RF Chain, time-division phase measurement is performed, so that after the fourth device measures the phases of multiple first signals using multiple antennas on multiple time units respectively, the measured phases are compensated according to the time intervals of the multiple first signals, so that the compensated phases are consistent with the phases when measured simultaneously using multiple antennas, and then the perception or positioning of the first device (such as a BSC device) can be accurately realized.

[0196] Optionally, the frequency-domain resource of the first resource meets the following conditions: the first signal includes at least two parts, and the at least two parts are located at unequal center frequencies. Each part means: the first signal is decomposed into multiple sub-signals that do not overlap with each other in the frequency domain and have no non-zero support in the ranges of [-infinity, left frequency-domain range boundary] and [right frequency-domain range boundary, +infinity], and each sub-signal is each part. Thus, ranging can be realized based on the carrier phase difference, and then the perception or positioning of the first device (such as a BSC device) can be accurately realized.

[0197] Optionally, the time-domain resource of the second resource includes multiple time units, and the multiple time units meet the following conditions: the fourth device for receiving the first signal can complete at least one phase measurement on at least two time units respectively, and can complete at least one antenna switch between different time units.

[0198] Optionally, the frequency-domain resource of the second resource meets the following conditions: the center frequency of the second signal is related to the center frequency of the first signal, and the first signal includes at least two parts, and the at least two parts are located at unequal center frequencies.

[0199] Optionally, for the specific contents of the first signal parameter and the second signal parameter, reference may be made to the above embodiments. To avoid repetition, they will not be elaborated herein.

[0200] The present application will be described below in conjunction with specific embodiments.

[0201] Embodiment 1

[0202] In this Embodiment 1, angle measurement is realized based on time-division phase measurement. The specific process includes:

[0203] Step 1: The second device configures / indicates resources related to the first signal (including resources for the third device to send a radio frequency carrier signal (hereinafter referred to as the second signal) and resources for the first device to send the first signal (i.e., the backscattered signal)), and signal parameters, and configures or indicates the first resource and the first signal parameter of the first signal to the first device / fourth device, and configures or indicates the second resource and the second signal parameter of the second signal to the third device. For the specific contents of the first resource, the first signal parameter, the second resource, and the second signal parameter, reference may be made to the above embodiments.

[0204] In this Step 1, the time-domain resources in the first resource and the second resource must satisfy a first condition, and this first condition is: The time-domain resources include multiple time units, and the multiple time units satisfy the following conditions: The fourth device can complete at least one phase measurement on at least two time units, and can complete at least one antenna switch between different time units.

[0205] Preferably, the number of receiving antennas is equal to the number of time units. For example, two receiving antennas correspond to two time units for measuring the phase. For example, the two configured time units can be like Figure 8A the time units "2" and "5" in

[0206] Step 2: With the configured signal parameters, on the specified resources, the third device sends a radio frequency carrier signal (i.e., the second signal) to the first device, the first device generates and sends the first signal through backscattering, and the fourth device receives and measures the first signal sent by the first device using at least two different receiving antennas.

[0207] Step 3: The fourth device obtains the signal arrival angle of the first device based on the measured phase of the first signal.

[0208] Assume that the phase of the first signal measured by the i-th antenna on the i-th time unit is the phase of the first signal measured by the j-th antenna on the j-th time unit is and the absolute time difference between the i-th time unit and the j-th time unit is Δt ij , and the interval between the i-th antenna and the j-th antenna is aij If f is the frequency of the center frequency point of the first signal, then:

[0209] In an alternative embodiment, the phases measured by any i-th antenna and j-th antenna can be taken to calculate the angle of arrival q of the signal of the first device ij :

[0210]

[0211] In an alternative embodiment, multiple sets of phases measured by the i-th antenna and the j-th antenna can be taken, multiple sets of angles of arrival of the signal can be obtained through the above formula, and then combined (such as taking the average value) to obtain the final angle of arrival of the signal of the first device, so as to improve the reliability of angle measurement.

[0212] In an alternative embodiment, the fourth device can calculate the angle of arrival of the signal by itself, or send the received first signal to the second device for calculation; for the latter, the fourth device needs to report the original received signal or the measured phase, as well as other calculation parameters, such as antenna spacing, etc.

[0213] Embodiment 2

[0214] In this Embodiment 2, ranging is implemented based on the absolute phase, and the specific process includes:

[0215] Step 1: It is the same as Step 1 in Embodiment 1 above, but the time-domain resources do not need to meet the first condition, and the rest will not be elaborated.

[0216] Step 2: With the configured signal parameters, on the specified resources, the third device sends a radio frequency carrier signal (i.e., the second signal) to the first device, the first device generates and sends the first signal through backscattering, and the fourth device uses at least one receiving antenna to receive and measure the first signal sent by the first device.

[0217] Step 3: The first device reports the modulation delay of the first signal (or the additional phase deviation introduced due to modulation) to the fourth device or through the fourth device to the second device.

[0218] For example, if the phase deviation introduced due to modulation is The modulation delay is t Mod , then

[0219] Step 4-1 (corresponding to Case1): The first device reports the phase when the second signal arrives at the first device to the fourth device or through the fourth device to the second device.

[0220] For example, it can be set that the phase when the second signal arrives at the first device is In Case 1, the phase when the second signal arrives at the first device can be actively reported by the first device.

[0221] Step 4-2 (corresponding to Case 2): The fourth device estimates the phase when the second signal arrives at the first device by itself.

[0222] This Case 2 is applicable to the situation where the third device and the fourth device are the same device, and the transmitting antenna of the second signal and the receiving antenna of the first signal share the same panel. At this time, there is a fixed geometric relationship between the transmitting antenna and the receiving antenna in the fourth device.

[0223] In an alternative embodiment, the setting of Figure 8B can be considered. Assuming the distance between the Tx antenna and the Rx1 antenna is b, then the phase when the second signal arrives at the first device is Where, is determined by the distance between the third device / fourth device and the first device; is determined by the distance b between the Tx antenna and Rx1 (assuming the Tx antenna is above Rx1) and the signal transmission / arrival direction θ. A possible expression is

[0224] Step 5: The fourth device calculates the distance from the first device to the fourth device.

[0225] Assume the phase of the first signal measured by the i-th antenna is Then:

[0226] In an alternative embodiment, corresponding to Case 1: 1) The fourth device measures the arrival phase of the first signal; 2) The phase difference experienced by the first signal from the first device to the i-th antenna in the fourth device is If the phase difference when the signal arrives at the i-th antenna also needs to be considered, then can also be obtained. Where, is the phase difference compared to the earliest arriving antenna when the first signal arrives at the i-th antenna, b i0 is the distance between the i-th antenna and the antenna where the signal arrives earliest; 4) The fourth device calculates the distance to the first device as

[0227] In an alternative embodiment, corresponding to Case 2: 1) After excluding After introducing the phase difference, the distance between the Tx antenna and the first device, as well as the distance from the first device to the receiving antenna, are equal. However, their frequency points may be different. For example, the frequency point of the second signal is f1, and the frequency point of the first signal is f2. 2) Since the third device and the fourth device are the same device, the fourth device can measure the phase of the first signal arriving at the receiving antenna and can also measure the phase of the second signal when it is sent from the transmitting antenna. 3) The fourth device calculates the difference between the arrival phase of the first signal and the transmission phase of the second signal as 4) The fourth device calculates the distance of the first device as

[0228] In an alternative embodiment, the fourth device can calculate the distance of the first device by itself, or send the received signal to the second device for calculation. For the latter, the fourth device needs to report the original received signal or the measured phase, as well as other calculation parameters, such as antenna spacing, etc.

[0229] In an alternative embodiment, the fourth device can use more than one receiving antenna to measure the first signal, so as to obtain multiple sets of distances from the first device to the fourth device, and then merge (such as taking the average value) to improve the reliability of distance measurement.

[0230] Embodiment 3

[0231] In this Embodiment 3, ranging based on carrier phase difference is performed. Embodiment 2 relies on the measured absolute phase for ranging, which requires compensating for the phase deviation caused by non-ideal factors, such as reporting etc., which will impose some limitations on the application. Another option is to measure the phase difference between two carriers to eliminate the phase deviation caused by these non-ideal factors.

[0232] Steps 1 and 2: The same as Steps 1 and 2 in Embodiment 1 above, but the time-domain resources do not need to meet the first condition, while the frequency-domain resources need to meet the second condition, and the rest will not be elaborated.

[0233] The second condition is that the first signal includes at least two parts, and the at least two parts are located at unequal center frequency points, such as located at two unequal center frequency points f a and f b , as Figure 8C shown. Preferably, half of the sum of f a and f b (i.e., (f a + f b ) / 2) is equal to the frequency of the center frequency point of the second signal. At this time, the first device can be implemented by double-sideband modulation (such as ASK, DSB-ASK, etc.).

[0234] Step 3: The fourth device uses a receiving antenna (assume the i-th antenna) to measure the first signal at f a and f b respectively, and obtains the phase difference at two frequency points

[0235] Step 4. The fourth device calculates the distance from the first device to the fourth device.

[0236] In an alternative embodiment, the distance calculated by the fourth device to the first device is

[0237] In an alternative embodiment, if the phase difference of the signal arriving at the i-th antenna needs to be considered, the phase difference can be compensated. Wherein, is the phase difference when the first signal arrives at the i-th antenna compared to the earliest arriving antenna. b i0 is the interval between the i-th antenna and the earliest arriving antenna of the signal, and then the above formula is applied to calculate the distance.

[0238] In an alternative embodiment, the fourth device can calculate the distance to the first device by itself, or send the received signal to the second device to complete the calculation; for the latter, the fourth device needs to report the original received signal or the measured phase, as well as other calculation parameters, such as antenna intervals, etc.

[0239] In an alternative embodiment, the fourth device can use more than one receiving antenna to measure the first signal, so as to obtain multiple sets of distances from the first device to the fourth device, and then merge (such as taking the average value) to improve the reliability of distance measurement.

[0240] In addition, more than one receiving antenna (assume the i-th and j-th receiving antennas) can be used to measure the phase at two center frequency points respectively. The differences from the above steps are as follows:

[0241] Step 3: The fourth device uses the i-th and j-th receiving antennas to measure the first signal at f a and f b respectively (the i-th antenna corresponds to f a , and the j-th antenna corresponds to f b ), and obtains the phase difference at two frequency points

[0242] Step 4: When calculating the distance, the phase difference brought by different antennas needs to be additionally compensated. If the signal arrives at the i-th receiving antenna first, an offset Δ=-2πf a bij sinθ / c, where b ij is the spacing between the i-th receiving antenna and the j-th receiving antenna. If the signal arrives at the j-th receiving antenna first, the offset is Δ = 2πf b b ij sinθ / c, and the rest of the operations remain unchanged.

[0243] In addition, in the above step 1, the second device may also indicate to the fourth device the association relationship between the receiving antenna and the signal center frequency point, so as to measure the first signal at the corresponding center frequency point by using the receiving antenna.

[0244] In the information processing method provided by the embodiments of the present application, the execution subject may be an information processing device. In the embodiments of the present application, taking the information processing device executing the information processing method as an example, the information processing device provided by the embodiments of the present application is described.

[0245] Please refer to Figure 9 , Figure 9 which is a schematic structural diagram of an information processing device provided by the embodiments of the present application. The device is applied to a first device, such as Figure 9 shown. The information processing device 90 includes:

[0246] A first receiving module 91, configured to receive first information sent by a second device; wherein, the first information is used to configure or indicate a first resource and first signal parameters of a first signal, and the first signal is a signal for sensing or positioning;

[0247] A first sending module 92, configured to send the first signal to a fourth device on the first resource according to the first signal parameters;

[0248] Wherein, the time domain resource of the first resource includes multiple time units, and the multiple time units satisfy the following conditions: the fourth device can complete at least one phase measurement on at least two time units, and can complete at least one antenna switch between different time units; or, the frequency domain resource of the first resource satisfies: the first signal includes at least two parts, and the at least two parts are located at unequal center frequencies.

[0249] Optionally, when the first signal is obtained by backscattering a second signal, the frequency domain resource of the first resource further satisfies: the mean value of the sum of the frequencies of all the center frequencies of the first signal is equal to the frequency of the center frequency of the second signal.

[0250] Optionally, the first resource includes at least one of the following:

[0251] Time domain resource;

[0252] Frequency domain resource;

[0253] Code domain resources.

[0254] Optionally, the first signal parameter includes at least one of the following:

[0255] The transmission power or reflection coefficient of the first signal;

[0256] The sequence information of the first signal;

[0257] The coding method of the first signal;

[0258] The coding rate or coding rate index of the first signal;

[0259] The modulation method of the first signal;

[0260] The modulation order or modulation order index of the first signal;

[0261] The coding and modulation index of the first signal;

[0262] The demodulation reference signal or time-frequency reference signal of the first signal;

[0263] The preamble of the first signal;

[0264] The synchronization sequence of the first signal;

[0265] The device identification information carried by the first signal;

[0266] The scrambling method of the first signal.

[0267] Optionally, the information processing device 90 further includes:

[0268] A reporting module, configured to report at least one of the following to the second device or the fourth device: the modulation delay of the first signal, the phase of the second signal when it arrives at the first device; the second signal is the radio frequency carrier signal of the first signal.

[0269] The information processing device 90 provided in the embodiments of the present application can implement Figure 4 each process implemented by the method embodiments shown, and achieve the same technical effects. To avoid repetition, details are not described here again.

[0270] Please refer to Figure 10 , Figure 10 FIG. is a schematic structural diagram of an information processing device provided in an embodiment of the present application. This device is applied to a third device. As Figure 10 shown, the information processing device 100 includes:

[0271] A second receiving module 101, configured to receive second information sent by a second device; wherein, the second information is used to configure or indicate a second resource and second signal parameters of a second signal;

[0272] A second transmitting module 102, configured to transmit the second signal to a first device on the second resource according to the second signal parameters; wherein, the second signal is used to generate a first signal through backscattering, and the first signal is a signal for sensing or positioning;

[0273] Wherein, the time domain resource of the second resource includes a plurality of time units, and the plurality of time units satisfy the following conditions: a fourth device for receiving the first signal can complete at least one phase measurement on at least two time units, and can complete at least one antenna switching between different time units; or, the frequency domain resource of the second resource satisfies: the center frequency of the second signal is related to the center frequency of the first signal, the first signal includes at least two parts, and the at least two parts are located at unequal center frequencies.

[0274] Optionally, the mean value of the sum of the frequencies of all the center frequencies of the first signal is equal to the frequency of the center frequency of the second signal.

[0275] Optionally, the second resource includes at least one of the following: a time domain resource, a frequency domain resource, and a code domain resource;

[0276] Or, the second signal parameters include at least one of the following: the transmission power of the second signal, and the sequence information of the second signal.

[0277] The information processing apparatus 100 provided in the embodiments of the present application can implement Figure 5 each process implemented by the method embodiments shown, and achieve the same technical effects. To avoid repetition, details are not described here again.

[0278] Please refer to Figure 11 , Figure 11 which is a schematic structural diagram of an information processing apparatus provided in the embodiments of the present application. The apparatus is applied to a fourth device. As Figure 11 shown, the information processing apparatus 110 includes:

[0279] A third receiving module 111, configured to receive third information sent by a second device; wherein, the third information is used to configure or indicate a first resource and first signal parameters of a first signal;

[0280] A fourth receiving module 112, configured to receive a first signal sent by a first device on the first resource according to the first signal parameters;

[0281] The execution module 113 is configured to perform sensing or positioning according to the first signal.

[0282] Optionally, the time-domain resource of the first resource includes a plurality of time units, and the plurality of time units satisfy the following conditions: the fourth device can complete at least one phase measurement on at least two time units, and can complete at least one antenna switch between different time units;

[0283] The fourth receiving module 112 is specifically configured to: according to the first signal parameter, use at least two receiving antennas to respectively receive the first signal sent by the first device on at least two time units.

[0284] Optionally, the execution module 113 is specifically configured to: measure the phase of the first signal received by each of the at least two receiving antennas; determine the signal arrival angle of the first device according to the measured phase of the first signal and the time interval between the first signals received by the at least two receiving antennas.

[0285] Optionally, the fourth receiving module 112 is specifically configured to: according to the first signal parameter, use at least one receiving antenna to receive the first signal sent by the first device on the first resource.

[0286] Optionally, the execution module 113 is specifically configured to: measure the phase of the first signal received by the receiving antenna; determine the phase difference of the first signal from the first device to the fourth device according to the measured phase of the first signal, the modulation delay of the first signal, and the phase when the second signal arrives at the first device; the second signal is the radio frequency carrier signal of the first signal; determine the distance from the first device to the fourth device according to the phase difference.

[0287] Optionally, the modulation delay of the first signal is reported by the first device to the fourth device;

[0288] Alternatively, the phase when the second signal arrives at the first device is reported by the first device to the fourth device, or estimated by the fourth device.

[0289] Optionally, the execution module 113 is specifically configured to: measure a first phase when the first signal arrives at the receiving antenna, and measure a second phase when the second signal is sent from the transmitting antenna, where the second signal is a radio frequency carrier signal of the first signal; determine a difference between an arrival phase of the first signal and a transmission phase of the second signal according to the first phase, the second phase, and a phase when the second signal arrives at the first device; and determine a distance from the first device to the fourth device according to the difference between the arrival phase of the first signal and the transmission phase of the second signal, and frequencies of the first signal and the second signal.

[0290] Optionally, the frequency domain resources of the first resource satisfy that: the first signal includes at least two parts, and the at least two parts are located at unequal center frequencies; the fourth receiving module 112 is specifically configured to: respectively receive, by using at least one receiving antenna, at least two parts of the first signal that are located at unequal center frequencies according to the first signal parameters.

[0291] Optionally, the execution module 113 is specifically configured to: measure the first signal at the at least two unequal center frequencies respectively to obtain a phase difference of the first signal at the unequal center frequencies; and perform any one of the following:

[0292] Determine a distance from the first device to the fourth device according to the phase difference and a difference between specified frequencies of different parts of the first signal;

[0293] Determine a distance from the first device to the fourth device according to the phase difference, a phase difference when the first signal arrives at the receiving antenna, and a difference between specified frequencies of different parts of the first signal;

[0294] Determine a distance from the first device to the fourth device according to the phase difference, an interval between different receiving antennas, and a difference between specified frequencies of different parts of the first signal.

[0295] Optionally, the first signal parameters include at least one of the following:

[0296] Transmission power or reflection coefficient of the first signal;

[0297] Sequence information of the first signal;

[0298] Coding mode of the first signal;

[0299] Coding rate or coding rate index of the first signal;

[0300] Modulation mode of the first signal;

[0301] The modulation order or modulation order index of the first signal;

[0302] The coding and modulation index of the first signal;

[0303] The demodulation reference signal or time-frequency reference signal of the first signal;

[0304] The preamble of the first signal;

[0305] The synchronization sequence of the first signal;

[0306] The device identification information carried by the first signal;

[0307] The scrambling method of the first signal.

[0308] The information processing device 110 provided in the embodiments of the present application can implement Figure 6 each process implemented by the method embodiments shown, and achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0309] Please refer to Figure 12 , Figure 12 which is a schematic structural diagram of an information configuration device provided in the embodiments of the present application. This device is applied to a second device, such as Figure 12 shown, the information configuration device 120 includes:

[0310] A third sending module 121, configured to perform a first operation, where the first operation includes at least one of the following: sending first information to a first device, sending second information to a third device, and sending third information to a fourth device;

[0311] Wherein, the first information or the third information is used to configure or indicate the first resource and the first signal parameters of the first signal, and the second information is used to configure or indicate the second resource and the second signal parameters of the second signal; the second signal is the radio frequency carrier signal of the first signal, and the first signal is a signal for sensing or positioning.

[0312] Optionally, the time domain resource of the first resource includes multiple time units, and the multiple time units satisfy the following conditions: the fourth device can complete at least one phase measurement on at least two time units, and can complete at least one antenna switch between different time units; or, the frequency domain resource of the first resource satisfies: the first signal includes at least two parts, and the at least two parts are located at unequal center frequencies.

[0313] Optionally, the time domain resources of the second resource include a plurality of time units, and the plurality of time units satisfy the following conditions: a fourth device for receiving the first signal can complete at least one phase measurement on at least two time units, and can complete at least one antenna switch between different time units; or, the frequency domain resources of the second resource satisfy: the center frequency of the second signal is related to the center frequency of the first signal, and the first signal includes at least two parts, and the at least two parts are located at unequal center frequencies.

[0314] The information configuration device 120 provided by the embodiments of the present application can implement Figure 4 each process implemented by the method embodiment shown, and achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0315] As Figure 13 shown, the embodiments of the present application further provide a communication device 130, including a processor 131 and a memory 132. A program or instruction that can run on the processor 131 is stored on the memory 132. For example, when the communication device 130 is the first device, when the program or instruction is executed by the processor 131, it implements the above Figure 4 each step of the information processing method embodiment shown, and can achieve the same technical effect. When the communication device 130 is the third device, when the program or instruction is executed by the processor 131, it implements the above Figure 5 each step of the information processing method embodiment shown, and can achieve the same technical effect. When the communication device 130 is the fourth device, when the program or instruction is executed by the processor 131, it implements the above Figure 6 each step of the information processing method embodiment shown, and can achieve the same technical effect. When the communication device 130 is the second device, when the program or instruction is executed by the processor 131, it implements the above Figure 7 each step of the information configuration method embodiment shown, and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0316] The embodiments of the present application further provide a readable storage medium. A program or instruction is stored on the readable storage medium. When the program or instruction is executed by a processor, it implements each process of the information processing method embodiment shown, and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0317] Wherein, the processor is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disks or optical discs, etc. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0318] Another embodiment of the present application further provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is configured to run programs or instructions to implement each process of the above-mentioned information processing method embodiment and can achieve the same technical effects. To avoid repetition, details are not described herein again.

[0319] It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, system chip, chip system, or system-on-chip.

[0320] Another 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 each process of the above-mentioned information processing method embodiment and can achieve the same technical effects. To avoid repetition, details are not described herein again.

[0321] An embodiment of the present application further provides a communication system, including at least two of a first device, a second device, a third device, and a fourth device. The first device can be used to execute the steps of the method as Figure 4 described, the third device can be used to execute the steps of the method as Figure 5 described, the fourth device can be used to execute the steps of the method as Figure 6 described, and the second device can be used to execute the steps of the method as Figure 7 described.

[0322] It should be noted that in this document, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device including a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the presence of additional identical elements in the process, method, article or device including that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0323] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-described example methods can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, they can also be implemented by hardware. This computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions for causing a terminal or a network-side device to execute the methods described in various embodiments of the present application.

[0324] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms of embodiments without departing from the purpose of the present application and the scope protected by the claims. These embodiments are all within the protection scope of the present application.

Claims

1. An information processing method, characterized in that, Including: A first device receives first information sent by a second device; wherein, the first information is used to configure or indicate a first resource and first signal parameters of a first signal, and the first signal is a signal for sensing or positioning; The first device sends the first signal to a fourth device on the first resource according to the first signal parameters; Wherein, the time domain resource of the first resource includes a plurality of time units, and the plurality of time units satisfy the following conditions: the fourth device can complete at least one phase measurement on at least two time units respectively, and can complete at least one antenna switch between different time units; Alternatively, the frequency domain resource of the first resource satisfies: the first signal includes at least two parts, and the at least two parts are located at unequal center frequencies.

2. The method according to claim 1, characterized in that, When the first signal is obtained by backscattering a second signal, the frequency domain resource of the first resource further satisfies: the mean value of the sum of the frequencies of all the center frequencies of the first signal is equal to the center frequency of the second signal.

3. The method according to claim 1 or 2, characterized in that, The first resource includes at least one of the following: Time domain resource; Frequency domain resource; Code domain resource.

4. The method according to any one of claims 1 to 3, characterized in that, The first signal parameters include at least one of the following: The transmission power or reflection coefficient of the first signal; The sequence information of the first signal; The coding method of the first signal; The coding rate or coding rate index of the first signal; The modulation method of the first signal; The modulation order or modulation order index of the first signal; The coding and modulation index of the first signal; The demodulation reference signal or time-frequency reference signal of the first signal; The preamble of the first signal; The synchronization sequence of the first signal; The device identification information carried by the first signal; The scrambling method of the first signal.

5. The method according to any one of claims 1 to 4, characterized in that, The method further includes: The first device reports at least one of the following to the second device or the fourth device: the modulation delay of the first signal, the phase when the second signal arrives at the first device; wherein, the second signal is the radio frequency carrier signal of the first signal.

6. An information processing method, characterized in that, Including: A third device receives second information sent by a second device; wherein, the second information is used to configure or indicate a second resource and second signal parameters of a second signal; The third device sends the second signal to the first device on the second resource according to the second signal parameters; wherein, the second signal is used to generate a first signal by backscattering, and the first signal is a signal for sensing or positioning; Wherein, the time domain resource of the second resource includes a plurality of time units, and the plurality of time units satisfy the following conditions: the fourth device for receiving the first signal can complete at least one phase measurement on at least two time units respectively, and can complete at least one antenna switch between different time units; Alternatively, the frequency domain resource of the second resource satisfies: the center frequency of the second signal is related to the center frequency of the first signal, and the first signal includes at least two parts, and the at least two parts are located at unequal center frequencies.

7. The method according to claim 6, characterized in that The mean value of the sum of the frequencies of all the center frequencies of the first signal is equal to the center frequency of the second signal.

8. The method according to claim 6 or 7, characterized in that the second resource includes at least one of the following: time domain resource, frequency domain resource, code domain resource; or the second signal parameter includes at least one of the following: the transmission power of the second signal, the sequence information of the second signal.

9. An information processing method, characterized in that, including: a fourth device receives third information sent by a second device; wherein, the third information is used to configure or indicate the first resource and the first signal parameter of the first signal; the fourth device receives the first signal sent by the first device on the first resource according to the first signal parameter; the fourth device performs sensing or positioning according to the first signal.

10. The method according to claim 9, wherein The time domain resource of the first resource includes a plurality of time units, and the plurality of time units satisfy the following conditions: the fourth device can complete at least one phase measurement on at least two time units, and can complete at least one antenna switch between different time units; The fourth device receives the first signal sent by the first device on the first resource according to the first signal parameter, including: the fourth device respectively receives the first signal sent by the first device on at least two time units by using at least two receiving antennas according to the first signal parameter.

11. The method according to claim 10, wherein The fourth device performs sensing or positioning according to the first signal, including: the fourth device measures the phase of the first signal received by each of the at least two receiving antennas; the fourth device determines the angle of arrival of the signal of the first device according to the measured phase of the first signal and the time interval between the first signals received by the at least two receiving antennas.

12. The method according to claim 9, wherein The fourth device receives the first signal sent by the first device on the first resource according to the first signal parameter, including: the fourth device receives the first signal sent by the first device on the first resource by using at least one receiving antenna according to the first signal parameter.

13. The method according to claim 12, characterized in that, The fourth device performs sensing or positioning according to the first signal, including: the fourth device measures the phase of the first signal received by the receiving antenna; the fourth device determines the phase difference of the first signal from the first device to the fourth device according to the measured phase of the first signal, the modulation delay of the first signal, and the phase when the second signal arrives at the first device; wherein, the second signal is the radio frequency carrier signal of the first signal; the fourth device determines the distance from the first device to the fourth device according to the phase difference.

14. The method according to claim 13, characterized in that, The modulation delay of the first signal is reported by the first device to the fourth device; or the phase when the second signal arrives at the first device is reported by the first device to the fourth device, or is estimated by the fourth device.

15. The method according to claim 12, characterized in that, The fourth device performs sensing or positioning according to the first signal, including: the fourth device measures the first phase when the first signal arrives at the receiving antenna, and measures the second phase when the second signal is sent from the sending antenna, where the second signal is the radio frequency carrier signal of the first signal; The fourth device determines the difference between the arrival phase of the first signal and the transmission phase of the second signal according to the first phase, the second phase, and the phase at which the second signal arrives at the first device; The fourth device determines the distance from the first device to the fourth device according to the difference between the arrival phase of the first signal and the transmission phase of the second signal, and the frequencies of the first signal and the second signal.

16. The method according to claim 9, wherein The frequency-domain resources of the first resource satisfy that the first signal includes at least two parts, and the at least two parts are located at unequal center frequencies; The fourth device receives the first signal sent by the first device on the first resource according to the first signal parameters, including: The fourth device respectively receives at least two parts of the first signal located at unequal center frequencies by using at least one receiving antenna according to the first signal parameters.

17. The method according to claim 16, wherein The fourth device performs sensing or positioning according to the first signal, including: The fourth device measures the first signal at the at least two unequal center frequencies respectively, and obtains the phase difference of the first signal at the unequal center frequencies; The fourth device performs any one of the following: Determine the distance from the first device to the fourth device according to the phase difference and the difference between the specified frequencies of different parts of the first signal; Determine the distance from the first device to the fourth device according to the phase difference, the phase difference of the first signal arriving at the receiving antenna, and the difference between the specified frequencies of different parts of the first signal; Determine the distance from the first device to the fourth device according to the phase difference, the interval between different receiving antennas, and the difference between the specified frequencies of different parts of the first signal.

18. The method according to any one of claims 9 to 17, characterized in that, The first signal parameters include at least one of the following: The transmission power or reflection coefficient of the first signal; The sequence information of the first signal; The coding method of the first signal; The coding rate or coding rate index of the first signal; The modulation method of the first signal; The modulation order or modulation order index of the first signal; The coding and modulation index of the first signal; The demodulation reference signal or time-frequency reference signal of the first signal; The preamble of the first signal; The synchronization sequence of the first signal; The device identification information carried by the first signal; The scrambling method of the first signal.

19. An information configuration method, characterized in that, Including: The second device performs a first operation; Wherein, the first operation includes at least one of the following: sending first information to the first device, sending second information to the third device, and sending third information to the fourth device; Wherein, the first information or the third information is used to configure or indicate the first resource and the first signal parameters of the first signal, and the second information is used to configure or indicate the second resource and the second signal parameters of the second signal; the second signal is the radio frequency carrier signal of the first signal, and the first signal is the signal for sensing or positioning.

20. The method according to claim 19, wherein The time-domain resources of the first resource include multiple time units, and the multiple time units satisfy the following conditions: the fourth device can complete at least one phase measurement on at least two time units, and can complete at least one antenna switch between different time units; Or, The frequency-domain resources of the first resource satisfy: the first signal includes at least two parts, and the at least two parts are located at unequal center frequencies.

21. The method according to claim 19 or 20, characterized in that, The time-domain resources of the second resource include multiple time units, and the multiple time units satisfy the following conditions: the fourth device for receiving the first signal can complete at least one phase measurement on at least two time units, and can complete at least one antenna switch between different time units; Or, The frequency-domain resources of the second resource satisfy: the center frequency of the second signal is related to the center frequency of the first signal, and the first signal includes at least two parts, and the at least two parts are located at unequal center frequencies.

22. An information processing apparatus, characterized in that, Including: A first receiving module, configured to receive first information sent by a second device; wherein, the first information is used to configure or indicate the first resource of the first signal and the first signal parameters, and the first signal is a signal for sensing or positioning; A first sending module, configured to send the first signal to a fourth device on the first resource according to the first signal parameters; Wherein, the time-domain resources of the first resource include multiple time units, and the multiple time units satisfy the following conditions: the fourth device can complete at least one phase measurement on at least two time units, and can complete at least one antenna switch between different time units; Or, the frequency-domain resources of the first resource satisfy: the first signal includes at least two parts, and the at least two parts are located at unequal center frequencies.

23. The device according to claim 22, wherein The first signal parameters include at least one of the following: The transmission power or reflection coefficient of the first signal; The sequence information of the first signal; The coding method of the first signal; The coding rate or coding rate index of the first signal; The modulation method of the first signal; The modulation order or modulation order index of the first signal; The coding and modulation index of the first signal; The demodulation reference signal or time-frequency reference signal of the first signal; The preamble of the first signal; The synchronization sequence of the first signal; The device identification information carried by the first signal; The scrambling method of the first signal.

24. An information processing apparatus, characterized in that, Including: A second receiving module, configured to receive second information sent by a second device; wherein, the second information is used to configure or indicate the second resource of the second signal and the second signal parameters; A second sending module, configured to send the second signal to a first device on the second resource according to the second signal parameters; wherein, the second signal is used to generate the first signal through backscattering, and the first signal is a signal for sensing or positioning; Among them, the time domain resources of the second resource include multiple time units, and the multiple time units satisfy the following conditions: a fourth device for receiving the first signal can complete at least one phase measurement on at least two time units, and can complete at least one antenna switch between different time units; Alternatively, the frequency domain resources of the second resource satisfy: the center frequency point of the second signal is related to the center frequency point of the first signal, the first signal includes at least two parts, and the at least two parts are located at unequal center frequency points.

25. The device according to claim 24, wherein the second resource includes at least one of the following: time domain resources, frequency domain resources, code domain resources; or the second signal parameters include at least one of the following: the transmission power of the second signal, the sequence information of the second signal.

26. An information processing apparatus, characterized in that, including: a third receiving module, configured to receive third information sent by a second device; wherein the third information is used to configure or indicate the first resource and the first signal parameters of the first signal; a fourth receiving module, configured to receive a first signal sent by a first device on the first resource according to the first signal parameters; an execution module, configured to perform sensing or positioning according to the first signal.

27. The device according to claim 26, characterized in that, The time domain resources of the first resource include multiple time units, and the multiple time units satisfy the following conditions: the device can complete at least one phase measurement on at least two time units, and can complete at least one antenna switch between different time units; The fourth receiving module is specifically configured to: receive the first signal sent by the first device on at least two time units by using at least two receiving antennas according to the first signal parameters.

28. The device according to claim 27, wherein the execution module is specifically configured to: measure the phase of the first signal received by each of the at least two receiving antennas; determine the angle of arrival of the signal of the first device according to the measured phase of the first signal and the time interval between the first signals received by the at least two receiving antennas.

29. The device according to claim 26, wherein the fourth receiving module is specifically configured to: receive the first signal sent by the first device on the first resource by using at least one receiving antenna according to the first signal parameters; the execution module is specifically configured to perform any one of the following: measure the phase of the first signal received by the receiving antenna; determine the phase difference of the first signal from the first device to the fourth device according to the measured phase of the first signal, the modulation delay of the first signal, and the phase when the second signal arrives at the first device, where the second signal is a radio frequency carrier signal of the first signal; determine the distance from the first device to the fourth device according to the phase difference; Measure the first phase when the first signal arrives at the receiving antenna, and measure the second phase when the second signal is sent from the transmitting antenna, where the second signal is the radio frequency carrier signal of the first signal; determine the difference between the arrival phase of the first signal and the transmission phase of the second signal according to the first phase, the second phase, and the phase when the second signal arrives at the first device; determine the distance from the first device to the fourth device according to the difference between the arrival phase of the first signal and the transmission phase of the second signal, and the frequencies of the first signal and the second signal.

30. The device according to claim 26, characterized in that, The frequency domain resources of the first resource satisfy that the first signal includes at least two parts, and the at least two parts are located at unequal center frequencies; The fourth receiving module is specifically configured to: according to the first signal parameters, use at least one receiving antenna to respectively receive at least two parts of the first signal located at unequal center frequencies.

31. The device according to claim 30, wherein, The execution module is specifically configured to: measure the first signal at the at least two unequal center frequencies respectively, obtain the phase difference of the first signal at the unequal center frequencies, and perform any one of the following: Determine the distance from the first device to the fourth device according to the phase difference and the frequency difference between the unequal center frequencies of the first signal; Determine the distance from the first device to the fourth device according to the phase difference, the phase difference when the first signal arrives at the receiving antenna, and the frequency difference between the unequal center frequencies of the first signal; Determine the distance from the first device to the fourth device according to the phase difference, the interval between different receiving antennas, and the frequency difference between the unequal center frequencies of the first signal.

32. An information configuration device, characterized in that, Comprising: A third transmitting module, configured to perform a first operation, where the first operation includes at least one of the following: sending first information to a first device, sending second information to a third device, and sending third information to a fourth device; Wherein, the first information or the third information is used to configure or indicate the first resource and the first signal parameters of the first signal, and the second information is used to configure or indicate the second resource and the second signal parameters of the second signal; the second signal is the radio frequency carrier signal of the first signal, and the first signal is a signal for sensing or positioning.

33. The device according to claim 32, wherein, The time domain resources of the first resource include multiple time units, and the multiple time units satisfy the following conditions: the fourth device can complete at least one phase measurement on at least two time units respectively, and can complete at least one antenna switch between different time units; Or, The frequency domain resources of the first resource satisfy that the first signal includes at least two parts, and the at least two parts are located at unequal center frequencies.

34. The device according to claim 32 or 33, characterized in that The time domain resources of the second resource include a plurality of time units, and the plurality of time units satisfy the following conditions: a fourth device for receiving the first signal can complete at least one phase measurement on at least two time units respectively, and can complete at least one antenna switch between different time units; Or, The frequency domain resources of the second resource satisfy that: the center frequency of the second signal is related to the center frequency of the first signal, the first signal includes at least two parts, and the at least two parts are located at unequal center frequencies.

35. A communication device, characterized in that, Comprising a processor and a memory, the memory stores programs or instructions that can run on the processor. When the programs or instructions are executed by the processor, the steps of the information processing method according to any one of claims 1 to 5 are implemented, or the steps of the information processing method according to any one of claims 6 to 8 are implemented, or the steps of the information processing method according to any one of claims 9 to 18 are implemented, or the steps of the information configuration method according to any one of claims 19 to 21 are implemented.

36. A readable storage medium, characterized in that, Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by the processor, the steps of the information processing method according to any one of claims 1 to 5 are implemented, or the steps of the information processing method according to any one of claims 6 to 8 are implemented, or the steps of the information processing method according to any one of claims 9 to 18 are implemented, or the steps of the information configuration method according to any one of claims 19 to 21 are implemented.

Images