Method and apparatus for reporting carrier phase measurement value, and storage medium

Abstract

Provided in the present disclosure are a method and apparatus for reporting a carrier phase measurement value, and a storage medium. The method is applied to a first communication device, and comprises: acquiring a first signal, the first signal being a signal obtained by an Internet of Things device modulating an excitation signal; on the basis of the first signal, determining a carrier phase measurement value corresponding to the excitation signal; and sending the carrier phase measurement value to a first functional network element, the carrier phase measurement value being used for positioning the Internet of Things device. The solution of the present disclosure can realize the calculation and reporting of carrier phase measurement values in positioning scenarios of Internet of Things devices.

Description

Methods, devices, and storage media for reporting carrier phase measurements

[0001] This disclosure claims priority to Chinese Patent Application No. 202411194233.X, filed on August 28, 2024, entitled “Method, Apparatus and Storage Medium for Reporting Carrier Phase Measurement”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of communication technology, and more specifically, to a method, apparatus, and storage medium for reporting carrier phase measurements. Background Technology

[0003] Ambient IoT (A-IoT) devices are a new type of IoT device that has little or no power supply and can transmit signals based on backscattering / reflection.

[0004] In some scenarios, it is necessary to locate A-IoT devices. Among the relevant technologies, there are various methods for device location, among which carrier phase-based ranging and positioning technology can achieve relatively accurate device location.

[0005] If carrier phase-based ranging and positioning technology is used to locate A-IoT devices, corresponding carrier phase measurements are required. Currently, there is no solution for obtaining and reporting these carrier phase measurements in A-IoT device positioning scenarios. Summary of the Invention

[0006] This disclosure provides a method, apparatus, and storage medium for reporting carrier phase measurements, so as to realize the calculation and reporting of carrier phase measurements in IoT device positioning scenarios.

[0007] In a first aspect, this disclosure provides a method for reporting carrier phase measurements, applied to a first communication device, the method comprising:

[0008] The first signal is obtained by the Internet of Things device modulating the excitation signal;

[0009] Based on the first signal, determine the carrier phase measurement quantity corresponding to the excitation signal;

[0010] The carrier phase measurement is sent to the first functional network element. The carrier phase measurement is used to locate IoT devices.

[0011] In some embodiments, determining the carrier phase measurement corresponding to the excitation signal based on the first signal includes:

[0012] The first signal is down-converted to obtain the channel response signal of the first signal;

[0013] The phase value of the channel response signal is determined as the carrier phase measurement.

[0014] In some embodiments, down-conversion processing is performed on the first signal to obtain a channel response signal for the first signal, including:

[0015] Receive the excitation signal configuration information sent by the first functional network element;

[0016] Based on the excitation signal indicated by the excitation signal configuration information, the first signal is down-converted to obtain the channel response signal.

[0017] In some embodiments, the excitation signal is a signal sent by the first communication device;

[0018] or,

[0019] The excitation signal is a signal sent by the second communication device, which is a communication device other than the first communication device.

[0020] In some embodiments, acquiring the first signal includes:

[0021] Receive the first signal sent by the IoT device;

[0022] or,

[0023] Receive a second signal, which includes a first signal sent by an IoT device and an excitation signal sent by a second communication device; and obtain the first signal from the second signal based on a reference signal sequence.

[0024] In some embodiments, the method further includes:

[0025] The reference signal sequence configuration information is received from the first functional network element. The reference signal sequence configuration information is used to indicate the reference signal sequence.

[0026] In some embodiments, the carrier phase measurement is carried in the positioning information, which further includes at least one of the following:

[0027] Positioning mode indication information is used to indicate that the excitation signal is a signal sent by the first communication device, or that the excitation signal is a signal sent by the second communication device;

[0028] Location indication information, used to indicate the location of the first communication device and / or the location of the second communication device;

[0029] Measurement parameter information, used to indicate the measurement parameters of the first signal.

[0030] In some embodiments, the location indication information includes at least one of the following:

[0031] The identifier of the first communication device;

[0032] Location information of the first communication device;

[0033] The identifier of the second communication device;

[0034] Location information of the second communication device.

[0035] In some embodiments, the measurement parameter information includes at least one of the following:

[0036] Angle measurement information is used to indicate the angle of arrival of the first signal at the first communication device;

[0037] Time information is used to indicate the time difference between a first moment and a second moment. The first moment is the moment when the first communication device or the second communication device sends the excitation signal, and the second moment is the moment when the first communication device acquires the first signal.

[0038] Received power information, used to indicate the received power of the first signal;

[0039] Speed ​​information, used to indicate the transmission speed of the first signal.

[0040] In some embodiments, sending a carrier phase measurement to a first functional network element includes:

[0041] Receive transmission mode indication information sent by the first functional network element. The transmission mode indication information is used to indicate the transmission mode of the carrier phase measurement. The transmission mode is either periodic transmission mode or aperiodic transmission mode.

[0042] Based on the transmission method, carrier phase measurements are sent to the first functional network element.

[0043] Secondly, this disclosure provides a method for reporting carrier phase measurements, applied to a first functional network element, the method comprising:

[0044] Receive carrier phase measurement data sent by the first communication device;

[0045] Among them, the carrier phase measurement is obtained based on the first signal, which is the signal obtained by the IoT device modulating the excitation signal. The carrier phase measurement is used to locate the IoT device.

[0046] In some embodiments, the excitation signal is a signal sent by the first communication device;

[0047] or,

[0048] The excitation signal is a signal sent by the second communication device, which is a communication device other than the first communication device.

[0049] In some embodiments, the carrier phase measurement is carried in the positioning information, which further includes at least one of the following:

[0050] Positioning mode indication information is used to indicate that the excitation signal is a signal sent by the first communication device, or that the excitation signal is a signal sent by the second communication device;

[0051] Location indication information, used to indicate the location of the first communication device and / or the location of the second communication device;

[0052] Measurement parameter information, used to indicate the measurement parameters of the first signal.

[0053] In some embodiments, the location indication information includes at least one of the following:

[0054] The identifier of the first communication device;

[0055] Location information of the first communication device;

[0056] The identifier of the second communication device;

[0057] Location information of the second communication device.

[0058] In some embodiments, the measurement parameter information includes at least one of the following:

[0059] Angle measurement information is used to indicate the angle of arrival of the first signal at the first communication device;

[0060] Time information is used to indicate the time difference between a first moment and a second moment. The first moment is the moment when the first communication device or the second communication device sends the excitation signal, and the second moment is the moment when the first communication device acquires the first signal.

[0061] Received power information, used to indicate the received power of the first signal;

[0062] Speed ​​information, used to indicate the transmission speed of the first signal.

[0063] In some embodiments, receiving a carrier phase measurement sent by a first communication device includes:

[0064] Send transmission mode indication information to the first communication device. The transmission mode indication information is used to indicate the transmission mode of the carrier phase measurement. The transmission mode is either periodic transmission mode or aperiodic transmission mode.

[0065] Based on the transmission method, the carrier phase measurement sent by the first communication device is received.

[0066] In some embodiments, the method further includes:

[0067] Send excitation signal configuration information to the first communication device, and / or send excitation signal configuration information to the second communication device;

[0068] Among them, the excitation signal configuration information is used to indicate the excitation signal.

[0069] In some embodiments, the method further includes:

[0070] Send reference signal sequence configuration information to the first communication device, and / or send reference signal sequence configuration information to the Internet of Things device;

[0071] The reference signal sequence configuration information is used to indicate the reference signal sequence, which is used to modulate the excitation signal.

[0072] In some embodiments, the method further includes:

[0073] Send modulation scheme indication information to IoT devices;

[0074] The modulation mode indication information is used to indicate the modulation mode of the excitation signal. The first signal is the signal obtained by the Internet of Things device modulating the excitation signal based on the modulation mode.

[0075] Thirdly, this disclosure provides a method for reporting carrier phase measurements, applied to Internet of Things (IoT) devices, the method comprising:

[0076] Receive excitation signals sent by the first or second communication device;

[0077] The excitation signal is modulated based on the reference signal sequence to obtain the first signal;

[0078] A first signal is sent to a first communication device. The first signal is used to determine the carrier phase measurement corresponding to the excitation signal. The carrier phase measurement is used to locate the Internet of Things device.

[0079] In some embodiments, the excitation signal is modulated based on a reference signal sequence to obtain a first signal, including:

[0080] Determine the modulation method of the excitation signal;

[0081] Based on the modulation method of the excitation signal and the reference signal sequence, the excitation signal is modulated to obtain the first signal.

[0082] In some embodiments, the method further includes:

[0083] The reference signal sequence configuration information is received from the first functional network element. The reference signal sequence configuration information is used to indicate the reference signal sequence.

[0084] In some embodiments, the method further includes:

[0085] The system receives modulation mode indication information sent by the first functional network element. The modulation mode indication information is used to indicate the modulation mode of the excitation signal.

[0086] Fourthly, this disclosure provides a carrier phase measurement reporting device, applied to a first communication device, the device comprising:

[0087] The acquisition module is used to acquire the first signal, which is the signal obtained by the Internet of Things device modulating the excitation signal;

[0088] The processing module is used to determine the carrier phase measurement quantity corresponding to the excitation signal based on the first signal;

[0089] The first transceiver module is used to send carrier phase measurements to the first functional network element. The carrier phase measurements are used to locate IoT devices.

[0090] Fifthly, this disclosure provides a carrier phase measurement reporting device, applied to a first functional network element, the device comprising:

[0091] The second transceiver module is used to receive carrier phase measurements sent by the first communication device;

[0092] Among them, the carrier phase measurement is obtained based on the first signal, which is the signal obtained by the IoT device modulating the excitation signal. The carrier phase measurement is used to locate the IoT device.

[0093] Sixthly, this disclosure provides a carrier phase measurement reporting device for use in Internet of Things (IoT) devices, the device comprising:

[0094] The third transceiver module is used to receive excitation signals sent by the first or second communication device;

[0095] The modulation module is used to modulate the excitation signal based on the reference signal sequence to obtain the first signal;

[0096] The fourth transceiver module is used to send a first signal to the first communication device. The first signal is used to determine the carrier phase measurement corresponding to the excitation signal. The carrier phase measurement is used to locate the IoT device.

[0097] In a seventh aspect, this disclosure provides a carrier phase measurement reporting device, comprising: a memory, a transceiver, and a processor.

[0098] A memory for storing computer programs; a transceiver for sending and receiving data under the control of a processor; a processor for reading computer programs from memory and executing the method of any one of the first aspects.

[0099] Eighthly, this disclosure provides a carrier phase measurement reporting device, comprising: a memory, a transceiver, and a processor.

[0100] A memory is used to store computer programs; a transceiver is used to send and receive data under the control of a processor; a processor is used to read computer programs from memory and execute any of the second aspects.

[0101] Ninthly, this disclosure provides a carrier phase measurement reporting device, comprising: a memory, a transceiver, and a processor.

[0102] A memory is used to store computer programs; a transceiver is used to send and receive data under the control of a processor; and a processor is used to read computer programs from memory and execute any of the third aspects.

[0103] In a tenth aspect, this disclosure provides a non-transitory readable storage medium storing a computer program for causing a processor to perform the method of any one of the first to third aspects.

[0104] The carrier phase measurement reporting method, apparatus, and storage medium provided in this disclosure involve a first communication device acquiring a first signal, which is a signal obtained by an IoT device modulating an excitation signal. The first communication device then determines the carrier phase measurement corresponding to the excitation signal based on the first signal and sends the carrier phase measurement to a first functional network element. The carrier phase measurement is used for locating the IoT device. In the scenario of IoT device location, since the IoT device does not have the ability to independently generate signals, it receives and modulates the excitation signal, and then transmits the first signal through backscattering or reflection. This allows the first communication device to obtain and report the carrier phase measurement based on the first signal. Attached Figure Description

[0105] Figure 1 is a schematic diagram of an applicable application scenario provided by an embodiment of this disclosure;

[0106] Figure 2 is a schematic diagram of an applicable application scenario provided by an embodiment of this disclosure;

[0107] Figure 3 is a flowchart of the carrier phase measurement reporting method provided in an embodiment of this disclosure;

[0108] Figure 4 is a schematic diagram of ranging based on integer ambiguity and carrier phase measurement provided in an embodiment of this disclosure;

[0109] Figure 5 is a signaling diagram of the carrier phase measurement reporting method provided in an embodiment of this disclosure;

[0110] Figure 6 is a signaling diagram of the carrier phase measurement reporting method provided in an embodiment of this disclosure;

[0111] Figure 7 is a schematic diagram of the carrier phase measurement reporting device provided in an embodiment of this disclosure.

[0112] Figure 8 is a schematic diagram of the carrier phase measurement reporting device provided in an embodiment of this disclosure.

[0113] Figure 9 is a schematic diagram of the carrier phase measurement reporting device provided in an embodiment of this disclosure.

[0114] Figure 10 is a schematic diagram of the carrier phase measurement reporting device provided in an embodiment of this disclosure.

[0115] Figure 11 is a schematic diagram of the carrier phase measurement reporting device provided in an embodiment of this disclosure.

[0116] Figure 12 is a schematic diagram of the carrier phase measurement reporting device provided in an embodiment of this disclosure. Detailed Implementation

[0117] In this disclosure, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0118] In this disclosure, the term "at least one" refers to one or more, "multiple" refers to two or more, and other quantifiers are similar.

[0119] The terms "first," "second," etc., used in the embodiments of this disclosure are for illustrative purposes and to distinguish the objects being described. They do not indicate any order and do not imply any particular limitation on the number of objects in the embodiments of this disclosure. They do not constitute any limitation on the embodiments of this disclosure.

[0120] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this disclosure.

[0121] This disclosure provides a method, apparatus, and storage medium for reporting carrier phase measurements, so as to realize the acquisition and reporting of carrier phase measurements in A-IoT device positioning scenarios.

[0122] The method and apparatus are based on the same concept of the application. Since the methods and apparatus solve problems in similar ways, the implementation of the apparatus and methods can refer to each other, and the repeated parts will not be described again.

[0123] The technical solutions provided in this disclosure are applicable to a variety of systems, especially 5G systems. For example, applicable systems may include Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS), Long Term Evolution (LTE), LTE Frequency Division Duplex (FDD), LTE Time Division Duplex (TDD), Long Term Evolution Advanced (LTE-A), Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX), and 5G New Radio (NR). All of these systems include terminal equipment and network equipment. The systems may also include a core network component, such as Evolved Packet System (EPS) or 5G system (5GS). These systems may use NTN technology to provide cellular coverage, but this disclosure does not limit this.

[0124] The terminal devices involved in the embodiments of this disclosure can be devices that provide voice and / or data connectivity to users, handheld devices with wireless connectivity, or other processing devices connected to a wireless modem. The names of the terminal devices may differ in different systems; for example, in a 5G system, a terminal device can be called User Equipment (UE). Wireless terminal devices can communicate with one or more core networks (CNs) via a Radio Access Network (RAN). Wireless terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, for example, portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile devices that exchange voice and / or data with the RAN. Examples include Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). Wireless terminal equipment can also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, remote terminal, access terminal, user terminal, user agent, or user device, but is not limited to these terms in the embodiments disclosed herein.

[0125] The network device disclosed in this embodiment may be a base station, which may include multiple cells providing services to terminals. Depending on the specific application, the base station may also be called an access point, or a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The network device may be used to exchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network equipment involved in this disclosure can be a base transceiver station (BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA) system, a NodeB in a wide-band Code Division Multiple Access (WCDMA) system, an evolved Node B (eNB or e-NodeB) in a long term evolution (LTE) system, a 5G base station (gNB) in a next generation system, a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in this disclosure. In some network structures, the network equipment may include centralized unit (CU) nodes and distributed unit (DU) nodes, and the centralized unit and distributed unit may be geographically separated.

[0126] With the booming development of IoT technology, the power supply, battery life and maintenance of IoT devices have become important reasons hindering the massive connection and ultra-large-scale development of IoT. Therefore, IoT technology needs to introduce devices without batteries or energy storage capabilities, or devices with energy storage capabilities but without the need for manual battery replacement or charging.

[0127] Among related technologies, low-complexity tag identification can be achieved through barcodes or radio frequency identification (RFID) technology. However, RFID technology suffers from severe interference and limited capacity in high-density deployment scenarios, which limits its application scenarios.

[0128] Based on this, a new type of Internet of Things (IoT) device has been introduced, namely the A-IoT device. An A-IoT device is a device without batteries or energy storage capacity, or a device with energy storage capacity that does not require manual replacement or charging. It can receive excitation electromagnetic signals emitted in the environment to obtain energy and operate under the drive of energy.

[0129] In scenarios such as factory, goods, archive, asset management, and warehouse storage, it is necessary to locate A-IoT devices to determine their position. Related technologies include positioning methods such as observed time difference of arrival (OTDOA), uplink observed time difference of arrival (UTDOA), downlink observed time difference of arrival (DL-TDOA), downlink time difference of arrival (UL-TDOA), and uplink time difference of arrival (UL-TDOA) for A-IoT device location. However, the positioning accuracy of these methods is relatively low.

[0130] Currently, carrier phase-based ranging and positioning technology can be used for device positioning, effectively improving positioning accuracy. During the positioning process, it is necessary to acquire corresponding carrier phase measurements. The main reason why carrier phase measurements can accurately determine the device's location is that the error in carrier phase measurements is generally only about 10% of the carrier wavelength. For example, when the carrier frequency is 2GHz, its carrier wavelength is 15 cm, and the error in carrier phase measurements is only 1-2 cm. Therefore, this disclosure provides a solution for acquiring and reporting carrier phase measurements in IoT device positioning scenarios. The solution of this disclosure embodiment will be described below with reference to the accompanying drawings.

[0131] First, an applicable application scenario of the present disclosure embodiment will be introduced with reference to Figures 1 and 2.

[0132] Figure 1 is a schematic diagram of an applicable application scenario provided by an embodiment of the present disclosure. As shown in Figure 1, it includes a Location Management Function (LMF) network element 11, a first communication device 12, and an A-IoT device 13.

[0133] In the example of Figure 1, A-IoT device 13 is an IoT device to be located. A-IoT device 13 does not have the ability to generate signals independently. It needs to receive external excitation signals (signal S1 in Figure 1), modulate the excitation signals to obtain modulated signals (signal S2 in Figure 1), and then transmit the modulated signal S2 to the first communication device 12 through backscattering or reflection.

[0134] The first communication device 12 obtains the carrier phase measurement based on the modulated signal S2, and then reports the carrier phase measurement to the LMF network element 11.

[0135] In the scenario illustrated in Figure 1, the first communication device 12 can be a terminal or a network device (such as network device A or terminal B in Figure 1). The first communication device 12 is the transmitting device for signal S1 and also the receiving device for signal S2.

[0136] Figure 2 is a schematic diagram of an applicable application scenario provided by an embodiment of this disclosure. As shown in Figure 2, it includes an LMF network element 11, a first communication device 12, an A-IoT device 13, and a second communication device 14.

[0137] In the example of Figure 2, A-IoT device 13 is an IoT device to be located. A-IoT device 13 does not have the ability to generate signals independently. It needs to receive external excitation signals (signal S1 in Figure 2), modulate the excitation signals to obtain modulated signals (signal S2 in Figure 2), and then transmit the modulated signal S2 to the first communication device 12 through backscattering or reflection.

[0138] The first communication device 12 obtains the carrier phase measurement based on the modulated signal S2, and then reports the carrier phase measurement to the LMF network element 11.

[0139] In the scenario illustrated in Figure 2, the first communication device 12 can be a terminal or a network device (such as network device A or terminal B in Figure 2), and the first communication device 14 is the receiving device for signal S2. The second communication device 14 can be a terminal or a network device (such as network device C or terminal D in Figure 2) and is the transmitting device for signal S1.

[0140] In the above embodiments, an applicable application scenario of the present disclosure embodiment is described with reference to Figures 1 and 2. In some scenarios, configuration information (e.g., excitation signal configuration information) needs to be transmitted between LMF network element 11 and the first communication device 12, and between LMF network element 11 and the second communication device 14. Taking the transmission of configuration information between LMF network element 11 and the first communication device 12 as an example, LMF network element 11 can directly send configuration information to the first communication device 12, or it can send configuration information to the first communication device 12 through other network devices.

[0141] In the scenario where LMF network element 11 directly sends configuration information to the first communication device 12, if the first communication device 12 is a network device, the LMF network element 11 and the first communication device 12 can transmit configuration information via NR Positioning Protocol A (NRPPa); if the first communication device 12 is a terminal, the LMF network element 11 and the first communication device 12 can transmit configuration information via LTE Positioning Protocol (LPP). Other dedicated protocols can also be used for configuration information transmission between the LMF network element 11 and the first communication device 12, and this embodiment does not limit the scope of such transmission.

[0142] In the scenario where LMF network element 11 sends configuration information to the first communication device 12 through other network devices, if the first communication device 12 is a network device, after LMF network element 11 sends configuration information to other network devices, the other network devices and the first communication device 12 transmit configuration information through the X2 interface; if the first communication device 12 is a terminal, after LMF network element 11 sends configuration information to other network devices, the other network devices can carry the configuration information through Radio Resource Control (RRC) signaling, thereby sending the configuration information to the first communication device 12.

[0143] The implementation scheme for transmitting configuration information between LMF network element 11 and the second communication device 14 is similar to the implementation scheme for transmitting configuration information between LMF network element 11 and the first communication device 12, and will not be described in detail here.

[0144] The following describes the solution of the present disclosure embodiment in conjunction with Figure 3, using the application scenarios illustrated in Figures 1 and 2.

[0145] Figure 3 is a flowchart of a carrier phase measurement reporting method provided in an embodiment of this disclosure. The method is applied to a first communication device. As shown in Figure 3, the method includes:

[0146] S31, acquire the first signal, which is the signal obtained by the IoT device modulating the excitation signal.

[0147] IoT devices do not have the ability to generate signals independently. In scenarios where it is necessary to locate IoT devices, an excitation signal can be sent to the IoT device through a first communication device or a second communication device. For example, the IoT device can be the A-IoT device 13 shown in Figures 1 and 2.

[0148] After receiving an excitation signal, an IoT device can modulate it. The modulation method can be one of frequency modulation (FM), amplitude modulation (AM), or phase modulation (PM). By modulating the excitation signal, the information to be transmitted can be mapped onto a generated first signal, which is then sent to a first communication device. The first communication device is a communication device within the signal coverage area of ​​the IoT device. The process of the IoT device sending the first signal to the first communication device can be done through reflection or backscattering. Correspondingly, the first communication device receives the first signal.

[0149] S32, based on the first signal, determine the carrier phase measurement quantity corresponding to the excitation signal.

[0150] The carrier phase measurement refers to the phase of the channel response signal of the first signal after modulation by the IoT device, that is, the phase difference of the first signal from the IoT device to the first communication device. After acquiring the first signal, the first communication device can perform down-conversion processing on the first signal, converting it from a radio frequency signal into a baseband signal (that is, the channel response signal of the first signal), and then determine the phase value of the channel response signal as the carrier phase measurement corresponding to the excitation signal.

[0151] S33, send carrier phase measurement to the first functional network element. The carrier phase measurement is used to locate IoT devices.

[0152] After obtaining the carrier phase measurement, the first communication device can send the carrier phase measurement to the first functional network element. The carrier phase measurement and the integer ambiguity corresponding to the carrier phase measurement are used to determine the location of the Internet of Things device.

[0153] The meanings of integer ambiguity and first carrier phase measurement can be understood in conjunction with Figure 4. Figure 4 is a schematic diagram of ranging based on integer ambiguity and carrier phase measurement provided by the embodiment of this disclosure. As shown in Figure 4, let the distance between point M (the location of the IoT device) and point N (the location of the first communication device) be d. When measuring the distance between point M and point N, the IoT device can backscatter or reflect a first signal from point M to the first communication device at point N. The wavelength of the first signal is λ. Then: d=(x+φ)*λ (1)

[0154] Where φ is the phase difference of the first signal from point M to point N, i.e., the carrier phase measurement, and x is the integer ambiguity corresponding to the carrier phase measurement. Where x is a positive integer, and φ is a decimal between 0 and 1 (if expressed in degrees, φ is an angle value between 0 and 2π).

[0155] Taking Figure 4 as an example, the distance d = 100.3λ, where x = 100 represents the integer ambiguity and φ = 0.3 represents the carrier phase measurement. Therefore, the distance between the first communication device and the IoT device can be obtained by measuring the integer ambiguity and the carrier phase measurement, combined with the wavelength of the first signal.

[0156] Then, based on the distance between the first communication device and the IoT device, the IoT device can be located. For example, the first signal can be backscattered or reflected by the IoT device to multiple first communication devices to obtain the carrier phase measurement corresponding to multiple first communication devices. Then, the distance between each of the multiple first communication devices and the IoT device can be obtained by combining equation (1). Based on the distance between each of the multiple first communication devices and the IoT device, and the location of each of the multiple first communication devices, the location of the IoT device can be determined.

[0157] The carrier phase measurement reporting method provided in this embodiment involves a first communication device acquiring a first signal, which is a signal obtained by an IoT device modulating an excitation signal. The first communication device then determines the carrier phase measurement corresponding to the excitation signal based on the first signal and sends the carrier phase measurement to a first functional network element. The carrier phase measurement is used for locating the IoT device. In the scenario of IoT device location, since the IoT device does not have the ability to independently generate signals, it receives and modulates the excitation signal, and then transmits the first signal through backscattering or reflection. This allows the first communication device to obtain and report the carrier phase measurement based on the first signal.

[0158] Based on any of the above embodiments, the solutions of the present disclosure embodiments will be further described below with reference to the accompanying drawings.

[0159] For the scenario illustrated in Figure 1 (i.e., both the device sending the excitation signal to the IoT device and the device receiving the first signal backscattered or reflected by the IoT device are first communication devices), the solution of the embodiment of this disclosure will be described below with reference to Figure 5.

[0160] Figure 5 is a signaling diagram of a carrier phase measurement reporting method provided in an embodiment of this disclosure. As shown in Figure 5, it includes:

[0161] S501, the first communication device sends a location request to the first functional network element.

[0162] When an IoT device has a location requirement, the first communication device sends a location request to the first functional network element. The location request is used to request the location of the IoT device, and the first functional network element receives the location request accordingly.

[0163] S502, the first functional network element sends excitation signal configuration information to the first communication device.

[0164] Upon receiving a location request, the first functional network element can determine that the IoT device needs to be located. Since IoT devices do not have the ability to generate signals independently and require backscattering or reflection of excitation signals, the first functional network element can configure or generate excitation signal configuration information, which is used to indicate the excitation signal.

[0165] Excitation signals are reference signals used for IoT device positioning. For example, they can include downlink time difference of arrival (DL-TDOA) or uplink time difference of arrival (UL-TDOA) positioning reference signals, such as positioning reference signals (PRS), channel state indication reference signals (CSI-RS), sounding reference signals (SRS), etc. Any reference signal that can be used for IoT device positioning can be used as an excitation signal.

[0166] Optionally, the excitation signal configuration information can be used to indicate one or more of the following information: amplitude, phase, frequency, wavelength, etc. of the excitation signal.

[0167] Taking a single-carrier excitation signal as an example, the excitation signal can be expressed in the form of the following equation (2):

[0168] Where s(t) is the excitation signal, t is time, and A in f is the amplitude of the excitation signal. c φ is the frequency (i.e., the frequency point) of the excitation signal. in This represents the initial phase deviation of the excitation signal.

[0169] Excitation signal configuration information can be used to indicate A in f c φ in The first communication device configures the A based on the excitation signal configuration information. in f c φ in It can determine the excitation signal s(t) and send the excitation signal to the IoT device.

[0170] S503, the first functional network element sends reference signal sequence configuration information to the first communication device and / or IoT device, the reference signal sequence configuration information being used to indicate the reference signal sequence.

[0171] The reference signal sequence is a signal sequence used to modulate the excitation signal. For example, it can be a sequence of 1s and 0s, such as {1,0,1,0,1,0}, {1,1,1,0,1,0,1,0}, etc. Reference signal sequence configuration information indicates the reference signal sequence. Based on this configuration information, the reference signal sequence can be determined, and it is used to modulate the excitation signal.

[0172] Optionally, if the reference signal sequence is pre-configured, both the first communication device and the IoT device can know the reference signal sequence in advance. In this case, the first functional network element does not need to send the reference signal sequence configuration information to the first communication device and the IoT device.

[0173] Optionally, the reference signal sequence is configured by a first functional network element, in which case the first functional network element sends the reference signal sequence configuration information to a first communication device and / or an Internet of Things device.

[0174] S504, the first communication device sends an excitation signal to the Internet of Things device.

[0175] After receiving the excitation signal configuration information, the first communication device can configure or generate an excitation signal based on the excitation signal configuration information and send the excitation signal to the IoT device. Correspondingly, the IoT device receives the excitation signal.

[0176] S505, the IoT device modulates the excitation signal based on the reference signal sequence to obtain the first signal.

[0177] The IoT device can modulate the excitation signal using any of the following methods: amplitude modulation, frequency modulation, or phase modulation. The IoT device determines the modulation method of the excitation signal and modulates the excitation signal based on the modulation method and a reference signal sequence to obtain the first signal.

[0178] Optionally, the IoT device can select one of amplitude modulation, frequency modulation, or phase modulation as the excitation signal.

[0179] Optionally, the first functional network element sends modulation mode indication information to the IoT device. The modulation mode indication information is used to indicate the modulation mode of the excitation signal. Correspondingly, the IoT device receives the modulation mode indication information and determines the modulation mode of the excitation signal based on the modulation mode indication information.

[0180] The following describes the process by which an IoT device modulates an excitation signal using different modulation methods to obtain a first signal. In the following embodiments, taking the excitation signal s(t) as an example of equation (2), the first communication device sends the excitation signal s(t) to the IoT device, and the excitation signal received by the IoT device is y. in (t), y in (t) can be expressed in the form of the following equation (3):

[0181] Where h1 is the attenuation caused by the channel between the IoT device and the first communication device, t is time, and A in f is the amplitude of the excitation signal. c φ is the frequency of the excitation signal. in τ1 is the initial phase deviation of the excitation signal, τ1 is the time delay of the excitation signal from the transmitting antenna of the first communication device to the receiving antenna of the IoT device via wireless transmission, and w1 is the complex Gaussian receiving noise of the IoT device.

[0182] Then, the IoT device uses the received excitation signal y based on the reference signal sequence. in (t) is modulated, and the modulation method of the excitation signal is one of amplitude modulation, frequency modulation, or phase modulation.

[0183] First, we will introduce the implementation scheme when the modulation method is amplitude modulation.

[0184] If the reference signal sequence is {1,0,1,0,1,0}, and taking amplitude modulation as an example, then for y in (t) can be amplitude modulated to obtain the first signal y. out (t) is:

[0185] Where h1 is the attenuation caused by the channel between the IoT device and the first communication device, t is time, and A in f is the amplitude of the excitation signal. c φ is the frequency of the excitation signal. in Let τ1 be the initial phase deviation of the excitation signal, τ1 be the time delay of the excitation signal from the transmitting antenna of the first communication device to the receiving antenna of the IoT device via wireless transmission, w1 be the complex Gaussian received noise of the IoT device, and A be the initial phase deviation of the excitation signal. out-on For IoT devices, the reference signal sequence is modulated and mapped to the amplitude value of the first signal, φ. scatter This could be a phase shift caused by reflection or a non-ideal phase caused by the transmitting circuit in an IoT device.

[0186] It should be noted that A out-off This indicates that IoT devices do not perform backscattering / reflection. For transceiver integrated scenarios, A out-off At that time, there is no signal at the first communication device. For example, if the reference signal sequence is {1,0,1,0,1,0}, then the corresponding amplitude value of the first signal is {A}. out-on ,0,A out-on ,0,A out-on In other words, for a 1 in the reference signal sequence, the amplitude of the first signal obtained by amplitude modulation of the excitation signal based on the reference signal sequence is A. out-on For the 0 in the reference signal sequence, the amplitude of the first signal obtained by amplitude modulation of the excitation signal based on the reference signal sequence is 0.

[0187] The following describes the implementation scheme when the modulation method is frequency modulation.

[0188] If the reference signal sequence is {1,0,1,0,1,0}, and the modulation method is frequency modulation (FM), then for y in (t) frequency modulation can obtain the first signal y. out (t) is:

[0189] Where h1 is the attenuation caused by the channel between the IoT device and the first communication device, t is time, and A in f is the amplitude of the excitation signal. c φ is the frequency of the excitation signal. in Let τ1 be the initial phase deviation of the excitation signal, τ1 be the time delay of the excitation signal from the transmitting antenna of the first communication device to the receiving antenna of the IoT device via wireless transmission, w1 be the complex Gaussian received noise of the IoT device, and f be the initial phase deviation of the excitation signal. out-on For IoT devices to modulate and map a reference signal sequence onto the frequency value of a first signal, φ scatterThis could be a phase shift caused by reflection or a non-ideal phase caused by the transmitting circuit in an IoT device.

[0190] It should be noted that f out-off This indicates that IoT devices do not perform backscattering / reflection. For transceiver integrated scenarios, f out-off At that time, there was no signal at the first communication device.

[0191] The following describes the implementation scheme when the modulation method is phase modulation.

[0192] If the reference signal sequence is {1,0,1,0,1,0}, and taking phase modulation as an example, then for y in (t) Phase modulation can obtain the first signal y out (t) is:

[0193] Where h1 is the attenuation caused by the channel between the IoT device and the first communication device, t is time, and A in f is the amplitude of the excitation signal. c φ is the frequency of the excitation signal. in Let τ1 be the initial phase deviation of the excitation signal, τ1 be the time delay of the excitation signal from the transmitting antenna of the first communication device to the receiving antenna of the IoT device via wireless transmission, w1 be the complex Gaussian received noise of the IoT device, and φ be the initial phase deviation of the excitation signal. out-on For IoT devices, the reference signal sequence is modulated and mapped to the phase value of the first signal, φ. scatter This could be a phase shift caused by reflection or a non-ideal phase caused by the transmitting circuit in an IoT device.

[0194] It should be noted that φ out-off This indicates that IoT devices do not perform backscattering / reflection. For transceiver integrated scenarios, φ out-off At that time, there was no signal at the first communication device.

[0195] S506, the IoT device sends a first signal to the first communication device.

[0196] After the IoT device modulates the excitation signal to obtain the first signal, it backscatters or reflects the first signal to the first communication device.

[0197] S507, the first communication device performs down-conversion processing on the first signal to obtain the channel response signal of the first signal, and determines the phase value of the channel response signal as the carrier phase measurement quantity.

[0198] The first communication device performs down-conversion processing on the first signal based on the excitation signal indicated by the excitation signal configuration information to obtain a channel response signal. Specifically, the first communication device generates a local signal based on the excitation signal, and then performs down-conversion processing on the first signal based on the local signal to obtain the channel response signal.

[0199] If the IoT device modulates the excitation signal using amplitude modulation, based on the above equation (4), the first signal r(t) received by the first communication device can be determined as:

[0200] Where h1 is the attenuation caused by the channel between the IoT device and the first communication device, t is time, and A in f is the amplitude of the excitation signal. c φ is the frequency of the excitation signal. in Let τ1 be the initial phase deviation of the excitation signal, τ1 be the time delay of the excitation signal from the transmitting antenna of the first communication device to the receiving antenna of the IoT device via wireless transmission, w1 be the complex Gaussian received noise (i.e., received thermal noise) of the IoT device, and A be the initial phase deviation of the excitation signal. out-on For IoT devices, the reference signal sequence is modulated and mapped to the amplitude value of the first signal, φ. scatter w1 represents the phase abrupt change caused by reflection or the non-ideal phase caused by the transmitting circuit in the IoT device, and w2 represents the sum of the received thermal noise of the first communication device and w1.

[0201] Then, the first communication device generates a local signal s based on the excitation signal configuration information. L (t):

[0202] Where t is time, A L φ represents the amplitude of the local signal. L f represents the phase of the local signal. c The frequency of the excitation signal is also the frequency of the local signal.

[0203] The first communication device performs down-conversion processing on r(t), specifically, it converts r(t) to s. L Multiplying the conjugates of (t) yields the channel response signal r of the first signal. B :

[0204] Based on equation (9), the carrier phase measurement φ (i.e., the phase difference between the time the first signal is transmitted from the IoT device and the time the first communication device receives the first signal) can be obtained as: φ = angle(r B ) = mod(-2πf c 2τ1+φ in +φ scatter -φ L +φw ,2*π) (10)

[0205] Where, φ w The phase of w2.

[0206] If the IoT device modulates the excitation signal using frequency modulation, based on the above equation (5), the first signal r(t) received by the first communication device can be determined as:

[0207] Where h1 is the attenuation caused by the channel between the IoT device and the first communication device, t is time, and A in f is the amplitude of the excitation signal. c φ is the frequency of the excitation signal. in Let τ1 be the initial phase deviation of the excitation signal, τ1 be the time delay of the excitation signal from the transmitting antenna of the first communication device to the receiving antenna of the IoT device via wireless transmission, w1 be the complex Gaussian received noise of the IoT device, and f be the initial phase deviation of the excitation signal. out-on For IoT devices to modulate and map a reference signal sequence onto the frequency value of a first signal, φ scatter w1 represents the phase abrupt change caused by reflection or the non-ideal phase caused by the transmitting circuit in the IoT device, and w2 represents the sum of the received thermal noise of the first communication device and w1.

[0208] Then, the first communication device generates a local signal s based on the excitation signal configuration information. L (t):

[0209] Where t is time, A L φ represents the amplitude of the local signal. L f represents the phase of the local signal. c The frequency of the excitation signal is also the frequency of the local signal.

[0210] The first communication device performs down-conversion processing on r(t), specifically, it converts r(t) to s. L Multiplying the conjugates of (t) yields the channel response signal r of the first signal. B :

[0211] Based on equation (13), the carrier phase measurement φ (i.e., the phase difference between the time the first signal is transmitted from the IoT device and the time the first communication device receives the first signal) can be obtained as: φ = angle(r B ) = mod(-2πf c τ1-2π(f c +f out-on )τ1+φ in +φ scatter -φ L+φ w ,2*π) (14)

[0212] Where, φ w The phase of w2.

[0213] If the IoT device modulates the excitation signal using phase modulation, based on the above equation (6), the first signal r(t) received by the first communication device can be determined as:

[0214] Where h1 is the attenuation caused by the channel between the IoT device and the first communication device, t is time, and A in f is the amplitude of the excitation signal. c φ is the frequency of the excitation signal. in Let τ1 be the initial phase deviation of the excitation signal, τ1 be the time delay of the excitation signal from the transmitting antenna of the first communication device to the receiving antenna of the IoT device via wireless transmission, w1 be the complex Gaussian received noise of the IoT device, and φ be the initial phase deviation of the excitation signal. out-on For IoT devices, the reference signal sequence is modulated and mapped to the phase value of the first signal, φ. scatter w1 represents the phase abrupt change caused by reflection or the non-ideal phase caused by the transmitting circuit in the IoT device, and w2 represents the sum of the received thermal noise of the first communication device and w1.

[0215] Then, the first communication device generates a local signal s based on the excitation signal configuration information. L (t):

[0216] Where t is time, A L φ represents the amplitude of the local signal. L f represents the phase of the local signal. c The frequency of the excitation signal is also the frequency of the local signal.

[0217] The first communication device performs down-conversion processing on r(t), specifically, it converts r(t) to s. L Multiplying the conjugates of (t) yields the channel response signal r of the first signal. B :

[0218] Based on equation (17), the carrier phase measurement φ (i.e., the phase difference between the time the first signal is transmitted from the IoT device and the time the first communication device receives the first signal) can be obtained as: φ = angle(r B ) = mod(-2πf c 2τ1+φ in +φ scatter +φ out-on -φ L +φ w,2*π) (18)

[0219] Where, φ w The phase of w2.

[0220] S508, the first communication device sends a carrier phase measurement to the first functional network element.

[0221] After the first communication device obtains the carrier phase measurement, it can send the carrier phase measurement to the first functional network element.

[0222] Optionally, the first communication device may send carrier phase measurements to the first functional network element in a periodic transmission mode or in an aperiodic transmission mode.

[0223] Optionally, the first functional network element sends transmission mode indication information to the first communication device. This transmission mode indication information indicates the transmission mode of the carrier phase measurement, which may be a periodic transmission mode or an aperiodic transmission mode. Correspondingly, the first communication device receives the transmission mode indication information and, based on the transmission mode indicated by the information, sends the carrier phase measurement to the first functional network element. The first functional network element receives the carrier phase measurement sent by the first communication device based on the transmission mode.

[0224] Optionally, the carrier phase measurement is carried in the positioning information, which also includes at least one of the following 1.1 to 1.3:

[0225] 1.1 Positioning mode indication information, used to indicate that the excitation signal is a signal sent by the first communication device, or that the excitation signal is a signal sent by the second communication device.

[0226] The positioning mode indication information is used to indicate whether the device sending the excitation signal to the IoT device and the device receiving the first signal are the same device. In the scenario illustrated in Figure 1, both the device sending the excitation signal to the IoT device and the device receiving the first signal are the first communication device. In the scenario illustrated in Figure 2, the device sending the excitation signal to the IoT device is the second communication device, and the device receiving the first signal is the first communication device.

[0227] In the various embodiments of this disclosure, the second communication device is a communication device other than the first communication device; that is, the first communication device and the second communication device are two independent communication devices. The device types of the first communication device and the second communication device can be the same or different. Taking Figure 2 as an example, for example, the first communication device is terminal B and the second communication device is terminal D, and terminal B and terminal D are two independent terminals; for example, the first communication device is network device A and the second communication device is network device C, and network device A and network device C are two independent network devices; for example, the first communication device is terminal B and the second communication device is network device C; for example, the first communication device is network device A and the second communication device is terminal D, and so on.

[0228] In the scheme illustrated in Figure 5, the positioning mode indication information is used to indicate that the excitation signal is a signal sent by the first communication device, that is, both the device that sends the excitation signal to the IoT device and the device that receives the first signal are the first communication devices.

[0229] 1.2 Location indication information, used to indicate the location of the first communication device and / or the location of the second communication device.

[0230] Location indication information includes at least one of the following (a)-(d):

[0231] (a) Identification of the first communication device.

[0232] The identifier of a communication device can have a mapping relationship with its location; for example, different identifiers correspond to different locations or areas. The first functional network element can store the mapping relationship between the identifier of the communication device and its location. If the location indication information includes the identifier of the first communication device, the first functional network element determines the location of the first communication device based on the mapping relationship between the identifier of the communication device and its location, as well as the identifier of the first communication device itself.

[0233] (b) Location information of the first communication device.

[0234] The location information of the first communication device may include, for example, the area identifier where the first communication device is located, the latitude and longitude of the first communication device, etc. If the location indication information includes the location information of the first communication device, the first functional network element can determine the location of the first communication device based on the location information of the first communication device.

[0235] (c) Identification of the second communication device.

[0236] The identifier of a communication device can have a mapping relationship with its location; for example, different identifiers correspond to different locations or areas. The first functional network element can store the mapping relationship between the identifier of the communication device and its location. If the location indication information includes the identifier of a second communication device, the first functional network element determines the location of the second communication device based on the mapping relationship between the identifier of the communication device and its location, as well as the identifier of the second communication device.

[0237] (d) Location information of the second communication device.

[0238] The location information of the second communication device may include, for example, the area identifier where the second communication device is located, the latitude and longitude of the second communication device, etc. If the location indication information includes the location information of the second communication device, the first functional network element can determine the location of the second communication device based on the location information of the second communication device.

[0239] Optionally, if both the device sending the excitation signal to the IoT device and the device receiving the first signal are first communication devices, then the location indication information is used to indicate the location of the first communication device. In this case, the location indication information may include the identifier of the first communication device and / or the location information of the first communication device.

[0240] Optionally, if the device sending the excitation signal to the IoT device is a second communication device, and the device receiving the first signal is a first communication device, then the location indication information is used to indicate the location of the first communication device and / or the location of the second communication device. In this case, the location indication information may include information for indicating the location of the first communication device, and / or information for indicating the location of the second communication device. Specifically, the information for indicating the location of the first communication device may include the identifier of the first communication device and / or the location information of the first communication device, and the information for indicating the location of the second communication device may include the identifier of the second communication device and / or the location information of the second communication device.

[0241] 1.3 Measurement parameter information, used to indicate the measurement parameters of the first signal.

[0242] The measurement parameter information includes at least one of the following (e)-(h):

[0243] (e) Angle measurement information, used to indicate the angle of arrival of the first signal at the first communication device.

[0244] If the first communication device has a multi-antenna array, when the first communication device receives the first signal, it can obtain the angle of arrival of the first signal from the IoT device to the first communication device and report it to the first functional network element. The first functional network element combines the angle of arrival and carrier phase measurement to locate the IoT device.

[0245] (f) Time information, used to indicate the time difference between the first moment and the second moment.

[0246] In this context, the first moment refers to the moment when either the first or second communication device sends the excitation signal. If both the device sending the excitation signal to the IoT device and the device receiving the first signal are the first communication device, then the first moment is the moment when the first communication device sends the excitation signal. If the device sending the excitation signal to the IoT device is the second communication device, and the device receiving the first signal is the first communication device, then the first moment is the moment when the second communication device sends the excitation signal. In the scheme illustrated in Figure 5, the first moment is the moment when the first communication device sends the excitation signal to the IoT device. The second moment is the moment when the first communication device receives the first signal.

[0247] (g) Receive power information, used to indicate the received power of the first signal.

[0248] Received power information may include, for example, Reference Signal Receiving Power (RSRP), Received Signal Strength Indicator (RSSI), Signal-to-noise ratio (SNR), Signal-to-Interference-plus-Noise Ratio (SINR), and so on.

[0249] Since multiple communication devices may exist within the signal coverage area of ​​an IoT device, and all of these devices can receive the first signal, the first functional network element can identify the communication device with the higher received power of the first signal based on the received power information of each communication device. Because the first communication device has a higher received power, it indicates that the interference received by the first signal is likely to be less, which is more helpful for locating the IoT device.

[0250] (h) Speed ​​information, used to indicate the transmission speed of the first signal.

[0251] The first communication device can also acquire the transmission speed of the first signal and report the speed information to the first functional network element. The first functional network element can determine the transmission speed of the first signal based on the speed information.

[0252] In summary, the solution of this disclosure embodiment, targeting a transceiver integrated scenario (i.e., both the device sending the excitation signal to the IoT device and the device receiving the first signal are first communication devices), involves the IoT device receiving the excitation signal sent by the first communication device, modulating the excitation signal, and backscattering or reflecting the first signal back to the first communication device. The first communication device then obtains a carrier phase measurement based on the first signal and reports it to the first functional network element, enabling the first functional network element to locate the IoT device based on the carrier phase measurement. Furthermore, the first communication device can also report one or more of the following information: positioning mode indication information, location indication information, and measurement parameter information, enabling the first functional network element to locate the IoT device based on the carrier phase measurement and this information.

[0253] In the above embodiments, the implementation scheme is introduced in the scenario where both the device sending the excitation signal to the IoT device and the device receiving the first signal are first communication devices. The following will introduce the implementation scheme in the scenario where the device sending the excitation signal to the IoT device is a second communication device and the device receiving the first signal is a first communication device.

[0254] Figure 6 is a signaling diagram 2 of the carrier phase measurement reporting method provided in this embodiment of the present disclosure. As shown in Figure 6, it includes:

[0255] S601, the second communication device sends a location request to the first functional network element.

[0256] When an IoT device has a location requirement, the second communication device sends a location request to the first functional network element. The location request is used to request the location of the IoT device, and the first functional network element receives the location request accordingly.

[0257] S602, the first functional network element sends excitation signal configuration information to the first communication device and the second communication device.

[0258] Upon receiving a location request, the first functional network element can determine that the IoT device needs to be located. Since IoT devices do not have the ability to generate signals independently and require backscattering or reflection of excitation signals, the first functional network element can configure or generate excitation signal configuration information, which is used to indicate the excitation signal.

[0259] Taking the excitation signal as an example in the form of equation (1), the excitation signal configuration information can be used to indicate A. in f c φ in The first communication device configures the A based on the excitation signal configuration information. in f c φ inThe excitation signal s(t) can be determined and sent to the IoT device and the first communication device.

[0260] S603, the first functional network element sends reference signal sequence configuration information to the first communication device and / or IoT device, the reference signal sequence configuration information being used to indicate the reference signal sequence.

[0261] For an introduction to the reference signal sequence, please refer to the description in S503; it will not be repeated here.

[0262] S604, the second communication device sends an excitation signal to the IoT device and the first communication device.

[0263] The process can be seen in the scenario illustrated in Figure 2. The second communication device sends an excitation signal to the IoT device. Since the second communication device and the first communication device are two different communication devices, the first communication device will also receive the excitation signal. In this scenario, the excitation signal is an interference signal for the first communication device.

[0264] S605, the IoT device modulates the excitation signal based on the reference signal sequence to obtain the first signal.

[0265] The implementation of S605 can be found in the implementation of S505 in the above embodiments, and will not be repeated here.

[0266] S606, the IoT device sends a first signal to the first communication device.

[0267] After the IoT device modulates the excitation signal to obtain the first signal, it backscatters or reflects the first signal to the first communication device.

[0268] S607, the first communication device acquires the first signal.

[0269] A first communication device receives a second signal, which includes a first signal sent by an IoT device and an excitation signal sent by the second communication device. Then, the first communication device extracts the first signal from the second signal based on a reference signal sequence.

[0270] The following sections describe how the first communication device obtains the first signal from the second signal, based on different modulation methods of the excitation signal for IoT devices.

[0271] First, we introduce the implementation scheme of how the first communication device obtains the first signal from the second signal when the modulation method of the excitation signal of the IoT device is amplitude modulation.

[0272] Based on equations (3) and (4) above, the second signal received by the first communication device can be obtained as follows:

[0273] r′(t) is the second signal received by the first communication device, t is time, and A in f is the amplitude of the excitation signal. c φ is the frequency (i.e., the frequency point) of the excitation signal. in Let w1 be the initial phase deviation of the excitation signal, w1 be the complex Gaussian received noise of the IoT device, and A be the initial phase deviation of the excitation signal. out-on For IoT devices, the reference signal sequence is modulated and mapped to the amplitude value of the first signal, φ. scatter Let w3 be the received thermal noise of the first communication device, w2 be the sum of the received thermal noise of the first communication device (w3 and w1), h1 be the attenuation caused by the channel between the IoT device and the second communication device, h2 be the attenuation caused by the channel between the IoT device and the first communication device, h3 be the attenuation caused by the channel between the second communication device and the first communication device, τ1 be the time delay of the excitation signal from the second communication device to the IoT device, τ2 be the time delay of the first signal from the IoT device to the first communication device, and τ3 be the sum of τ1 and τ2. out-off This indicates that IoT devices do not perform backscattering / reflection.

[0274] As shown in equation (19), when A out-off At that time, the received second signal only includes It is the excitation signal received by the first communication device after the second communication device sends the excitation signal. It is the first signal received by the first communication device.

[0275] Subtracting the second signal received in the two states yields the first signal.

[0276] The following describes a scheme for the first communication device to obtain the first signal from the second signal when the modulation method of the excitation signal for the IoT device is frequency modulation.

[0277] Based on equations (3) and (5) above, the second signal received by the first communication device can be obtained as follows:

[0278] r′(t) is the second signal received by the first communication device, t is time, and A in f is the amplitude of the excitation signal. c φ is the frequency (i.e., the frequency point) of the excitation signal. in Let w1 be the initial phase deviation of the excitation signal, w1 be the complex Gaussian received noise of the IoT device, and f be the initial phase deviation of the excitation signal. out-on For IoT devices to modulate and map a reference signal sequence onto the frequency value of a first signal, φ scatterLet w3 be the received thermal noise of the first communication device, w2 be the sum of the received thermal noise w3 of the first communication device and the received thermal noise w1 of the IoT device, h1 be the attenuation caused by the channel between the IoT device and the second communication device, h2 be the attenuation caused by the channel between the IoT device and the first communication device, h3 be the attenuation caused by the channel between the second communication device and the first communication device, τ1 be the time delay of the excitation signal from the second communication device to the IoT device, τ2 be the time delay of the first signal from the IoT device to the first communication device, and τ3 be the sum of τ1 and τ2. out-off This indicates that IoT devices do not perform backscattering / reflection.

[0279] As shown in equation (20), when f out-off At that time, the received second signal only includes It is the excitation signal received by the first communication device after the second communication device sends the excitation signal. It is the first signal received by the first communication device.

[0280] Subtracting the second signal received in the two states yields the first signal.

[0281] Finally, we introduce a scheme for the first communication device to obtain the first signal from the second signal when the modulation method of the excitation signal by the IoT device is phase modulation.

[0282] Based on equations (3) and (6) above, the second signal received by the first communication device can be obtained as follows:

[0283] r′(t) is the second signal received by the first communication device, t is time, and A in f is the amplitude of the excitation signal. c φ is the frequency (i.e., the frequency point) of the excitation signal. in Let w1 be the initial phase deviation of the excitation signal, w1 be the complex Gaussian received noise of the IoT device, and φ be the initial phase deviation of the excitation signal. out-on For IoT devices, the reference signal sequence is modulated and mapped to the phase value of the first signal, φ. scatterLet w3 be the received thermal noise of the first communication device, w2 be the sum of the received thermal noise w3 of the first communication device and the received thermal noise w1 of the IoT device, h1 be the attenuation caused by the channel between the IoT device and the second communication device, h2 be the attenuation caused by the channel between the IoT device and the first communication device, h3 be the attenuation caused by the channel between the second communication device and the first communication device, τ1 be the time delay of the excitation signal from the second communication device to the IoT device, τ2 be the time delay of the first signal from the IoT device to the first communication device, τ3 be the sum of τ1 and τ2, and φ be the phase abrupt change caused by reflection or the non-ideal phase caused by the transmitting circuit in the IoT device. out-off This indicates that IoT devices do not perform backscattering / reflection.

[0284] As shown in equation (21), when φ out-off At that time, the received second signal only includes It is the excitation signal received by the first communication device after the second communication device sends the excitation signal. It is the first signal received by the first communication device.

[0285] Subtracting the second signal received in the two states yields the first signal.

[0286] S608, the first communication device performs down-conversion processing on the first signal to obtain the channel response signal of the first signal, and determines the phase value of the channel response signal as the carrier phase measurement quantity.

[0287] The first communication device performs down-conversion processing on the first signal based on the excitation signal indicated by the excitation signal configuration information to obtain a channel response signal. Specifically, the first communication device generates a local signal based on the excitation signal, and then performs down-conversion processing on the first signal based on the local signal to obtain the channel response signal.

[0288] If the IoT device modulates the excitation signal using amplitude modulation, based on the above equation (19), the first signal r(t) received by the first communication device can be determined as:

[0289] Then, the first communication device generates a local signal s based on the excitation signal configuration information. L (t):

[0290] Where t is time, A L φ represents the amplitude of the local signal. L f represents the phase of the local signal. c The frequency of the excitation signal is also the frequency of the local signal.

[0291] The first communication device performs down-conversion processing on r(t), specifically, it converts r(t) to s. L Multiplying the conjugates of (t) yields the channel response signal r of the first signal. B :

[0292] Based on equation (24), the carrier phase measurement φ (i.e., the phase difference between the time the first signal is transmitted from the IoT device and the time the first communication device receives the first signal) can be obtained as: φ = angle(r B ) = mod(-2πf c (τ1+τ2)+φ in +φ scatter -φ L +φ w1 ,2*π) (25)

[0293] Where, φ w1 The phase of w2-w3 is the phase of the w1 noise.

[0294] The first communication device can also directly down-convert the received second signal to obtain:

[0295] Then, the channel response signals under the two states are subtracted to obtain:

[0296] Based on r B The carrier phase measurement can then be obtained, as shown in equation (25) above.

[0297] If the IoT device modulates the excitation signal using frequency modulation, based on the above equation (18), the first signal r(t) received by the first communication device can be determined as:

[0298] w2 is the sum of the received thermal noise of the first communication device and the received thermal noise w1 of the Internet of Things device.

[0299] Then, the first communication device generates a local signal s based on the excitation signal configuration information. L (t):

[0300] Where t is time, A L φ represents the amplitude of the local signal. L f represents the phase of the local signal. c The frequency of the excitation signal is also the frequency of the local signal.

[0301] The first communication device performs down-conversion processing on r(t), specifically, it converts r(t) to s. LMultiplying the conjugates of (t) yields the channel response signal r of the first signal. B :

[0302] Based on equation (8), the carrier phase measurement φ (i.e., the phase difference between the time the first signal is transmitted from the IoT device and the time the first communication device receives the first signal) can be obtained as: φ = mod(-2πf c τ1-2π(f c +f out-on )τ2+φ in +φ scatter -φ L +φ w1 ,2*pi) (31)

[0303] Where, φ w1 The phase of w2-w3 is the phase of the w1 noise.

[0304] The first communication device can also directly down-convert the received second signal to obtain:

[0305] Then, the channel response signals under the two states are subtracted to obtain:

[0306] Based on r B The carrier phase measurement can then be obtained, as shown in equation (31) above.

[0307] If the IoT device modulates the excitation signal using phase modulation, based on the above equation (18), the first signal r(t) received by the first communication device can be determined as:

[0308] w2 is the sum of the received thermal noise of the first communication device and the received thermal noise w1 of the Internet of Things device.

[0309] Then, the first communication device generates a local signal s based on the excitation signal configuration information. L (t):

[0310] Where t is time, A L φ represents the amplitude of the local signal. L f represents the phase of the local signal. c The frequency of the excitation signal is also the frequency of the local signal.

[0311] The first communication device performs down-conversion processing on r(t), specifically, it converts r(t) to s. L Multiplying the conjugates of (t) yields the channel response signal r of the first signal. B :

[0312] Based on equation (8), the carrier phase measurement φ (i.e., the phase difference between the time the first signal is transmitted by the IoT device and the time the first communication device receives the first signal) can be obtained as: φ = angle(r B ) = mod(-2πf c (τ1+τ2)+φ in +φ scatter +φ out-on -φ L +φ w1 ,2*π) (37)

[0313] Where, φ w1 The phase of w2-w3 is the phase of the w1 noise.

[0314] The first communication device can also directly down-convert the received second signal to obtain:

[0315] Then, the channel response signals under the two states are subtracted to obtain:

[0316] Based on r B The carrier phase measurement can then be obtained, as shown in equation (37) above.

[0317] S609, the first communication device sends a carrier phase measurement to the first functional network element.

[0318] The implementation process of S609 can be found in the implementation scheme of S508, and will not be repeated here.

[0319] In summary, the solution of this disclosure, targeting a scenario of transceiver separation (i.e., the second communication device sends the excitation signal to the IoT device, and the first communication device receives the first signal), involves the IoT device receiving the excitation signal sent by the first communication device, modulating the excitation signal, and backscattering or reflecting the first signal back to the first communication device. The first communication device then obtains the first signal from the second signal based on a reference signal sequence, and obtains a carrier phase measurement based on the first signal. This measurement is then reported to the first functional network element, enabling the first functional network element to locate the IoT device based on the carrier phase measurement. Furthermore, the first communication device can also report one or more of the following information: positioning mode indication information, location indication information, and measurement parameter information, allowing the first functional network element to locate the IoT device based on the carrier phase measurement and this information.

[0320] Figure 7 is a schematic diagram of the carrier phase measurement reporting device provided in an embodiment of this disclosure. As shown in Figure 7, it includes a memory 720, a transceiver 700, and a processor 710, wherein:

[0321] The memory 720 is used to store computer programs; the transceiver 700 is used to send and receive data under the control of the processor 710; the processor 710 is used to read the computer program in the memory 720 and perform the following operations:

[0322] The first signal is obtained by the Internet of Things device modulating the excitation signal;

[0323] Based on the first signal, determine the carrier phase measurement quantity corresponding to the excitation signal;

[0324] The carrier phase measurement is sent to the first functional network element. The carrier phase measurement is used to locate IoT devices.

[0325] In some embodiments, determining the carrier phase measurement corresponding to the excitation signal based on the first signal includes:

[0326] The first signal is down-converted to obtain the channel response signal of the first signal;

[0327] The phase value of the channel response signal is determined as the carrier phase measurement.

[0328] In some embodiments, down-conversion processing is performed on the first signal to obtain a channel response signal for the first signal, including:

[0329] Receive the excitation signal configuration information sent by the first functional network element;

[0330] Based on the excitation signal indicated by the excitation signal configuration information, the first signal is down-converted to obtain the channel response signal.

[0331] In some embodiments, the excitation signal is a signal sent by the first communication device;

[0332] or,

[0333] The excitation signal is a signal sent by the second communication device, which is a communication device other than the first communication device.

[0334] In some embodiments, acquiring the first signal includes:

[0335] Receive the first signal sent by the IoT device;

[0336] or,

[0337] Receive a second signal, which includes a first signal sent by an IoT device and an excitation signal sent by a second communication device; and obtain the first signal from the second signal based on a reference signal sequence.

[0338] In some embodiments, the processor is also configured to perform the following operations:

[0339] The reference signal sequence configuration information is received from the first functional network element. The reference signal sequence configuration information is used to indicate the reference signal sequence.

[0340] In some embodiments, the carrier phase measurement is carried in the positioning information, which further includes at least one of the following:

[0341] Positioning mode indication information is used to indicate that the excitation signal is a signal sent by the first communication device, or that the excitation signal is a signal sent by the second communication device;

[0342] Location indication information, used to indicate the location of the first communication device and / or the location of the second communication device;

[0343] Measurement parameter information, used to indicate the measurement parameters of the first signal.

[0344] In some embodiments, the location indication information includes at least one of the following:

[0345] The identifier of the first communication device;

[0346] Location information of the first communication device;

[0347] The identifier of the second communication device;

[0348] Location information of the second communication device.

[0349] In some embodiments, the measurement parameter information includes at least one of the following:

[0350] Angle measurement information is used to indicate the angle of arrival of the first signal at the first communication device;

[0351] Time information is used to indicate the time difference between a first moment and a second moment. The first moment is the moment when the first communication device or the second communication device sends the excitation signal, and the second moment is the moment when the first communication device acquires the first signal.

[0352] Received power information, used to indicate the received power of the first signal;

[0353] Speed ​​information, used to indicate the transmission speed of the first signal.

[0354] In some embodiments, sending a carrier phase measurement to a first functional network element includes:

[0355] Receive transmission mode indication information sent by the first functional network element. The transmission mode indication information is used to indicate the transmission mode of the carrier phase measurement. The transmission mode is either periodic transmission mode or aperiodic transmission mode.

[0356] Based on the transmission method, carrier phase measurements are sent to the first functional network element.

[0357] In Figure 7, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 710 and memory represented by memory 720. The bus architecture may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 700 may be multiple elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, including wireless channels, wired channels, optical fibers, etc. Processor 710 is responsible for managing the bus architecture and general processing, and memory 720 may store data used by processor 710 during operation.

[0358] The processor 710 can be a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor can also adopt a multi-core architecture.

[0359] The processor executes any of the methods provided in the embodiments of this disclosure by invoking a computer program stored in memory, according to the obtained executable instructions. The processor and memory may also be physically separated.

[0360] It should be noted that the carrier phase measurement reporting device provided in this embodiment can implement all the method steps implemented by the method embodiment with the first communication device as the execution subject, and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0361] Figure 8 is a schematic diagram of the carrier phase measurement reporting device provided in this embodiment of the present disclosure. As shown in Figure 8, it includes a memory 820, a transceiver 800, and a processor 810, wherein:

[0362] The memory 820 is used to store computer programs; the transceiver 800 is used to send and receive data under the control of the processor 810; the processor 810 is used to read the computer program in the memory 820 and perform the following operations:

[0363] Receive carrier phase measurement data sent by the first communication device;

[0364] Among them, the carrier phase measurement is obtained based on the first signal, which is the signal obtained by the IoT device modulating the excitation signal. The carrier phase measurement is used to locate the IoT device.

[0365] In some embodiments, the excitation signal is a signal sent by the first communication device;

[0366] or,

[0367] The excitation signal is a signal sent by the second communication device, which is a communication device other than the first communication device.

[0368] In some embodiments, the carrier phase measurement is carried in the positioning information, which further includes at least one of the following:

[0369] Positioning mode indication information is used to indicate that the excitation signal is a signal sent by the first communication device, or that the excitation signal is a signal sent by the second communication device;

[0370] Location indication information, used to indicate the location of the first communication device and / or the location of the second communication device;

[0371] Measurement parameter information, used to indicate the measurement parameters of the first signal.

[0372] In some embodiments, the location indication information includes at least one of the following:

[0373] The identifier of the first communication device;

[0374] Location information of the first communication device;

[0375] The identifier of the second communication device;

[0376] Location information of the second communication device.

[0377] In some embodiments, the measurement parameter information includes at least one of the following:

[0378] Angle measurement information is used to indicate the angle of arrival of the first signal at the first communication device;

[0379] Time information is used to indicate the time difference between a first moment and a second moment. The first moment is the moment when the first communication device or the second communication device sends the excitation signal, and the second moment is the moment when the first communication device acquires the first signal.

[0380] Received power information, used to indicate the received power of the first signal;

[0381] Speed ​​information, used to indicate the transmission speed of the first signal.

[0382] In some embodiments, receiving a carrier phase measurement sent by a first communication device includes:

[0383] Send transmission mode indication information to the first communication device. The transmission mode indication information is used to indicate the transmission mode of the carrier phase measurement. The transmission mode is either periodic transmission mode or aperiodic transmission mode.

[0384] Based on the transmission method, the carrier phase measurement sent by the first communication device is received.

[0385] In some embodiments, the processor is also configured to perform the following operations:

[0386] Send excitation signal configuration information to the first communication device, and / or send excitation signal configuration information to the second communication device;

[0387] Among them, the excitation signal configuration information is used to indicate the excitation signal.

[0388] In some embodiments, the processor is also configured to perform the following operations:

[0389] Send reference signal sequence configuration information to the first communication device, and / or send reference signal sequence configuration information to the Internet of Things device;

[0390] The reference signal sequence configuration information is used to indicate the reference signal sequence, which is used to modulate the excitation signal.

[0391] In some embodiments, the processor is also configured to perform the following operations:

[0392] Send modulation scheme indication information to IoT devices;

[0393] The modulation mode indication information is used to indicate the modulation mode of the excitation signal. The first signal is the signal obtained by the Internet of Things device modulating the excitation signal based on the modulation mode.

[0394] In Figure 8, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 810 and memory represented by memory 820. The bus architecture may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 800 may be multiple elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, including wireless channels, wired channels, optical fibers, etc. Processor 810 is responsible for managing the bus architecture and general processing, and memory 820 may store data used by processor 810 during operation.

[0395] The processor 810 can be a CPU, ASIC, FPGA or CPLD, and the processor can also adopt a multi-core architecture.

[0396] The processor executes any of the methods provided in the embodiments of this disclosure by invoking a computer program stored in memory, according to the obtained executable instructions. The processor and memory may also be physically separated.

[0397] It should be noted that the carrier phase measurement reporting device provided in this embodiment can implement all the method steps implemented by the method embodiment with the first functional network element as the execution subject, and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0398] Figure 9 is a schematic diagram of the carrier phase measurement reporting device provided in this embodiment of the present disclosure. As shown in Figure 9, it includes a memory 920, a transceiver 900, and a processor 910, wherein:

[0399] The memory 920 is used to store computer programs; the transceiver 900 is used to send and receive data under the control of the processor 910; the processor 910 is used to read the computer program in the memory 920 and perform the following operations:

[0400] Receive excitation signals sent by the first or second communication device;

[0401] The excitation signal is modulated based on the reference signal sequence to obtain the first signal;

[0402] A first signal is sent to a first communication device. The first signal is used to determine the carrier phase measurement corresponding to the excitation signal. The carrier phase measurement is used to locate the Internet of Things device.

[0403] In some embodiments, the excitation signal is modulated based on a reference signal sequence to obtain a first signal, including:

[0404] Determine the modulation method of the excitation signal;

[0405] Based on the modulation method of the excitation signal and the reference signal sequence, the excitation signal is modulated to obtain the first signal.

[0406] In some embodiments, the processor is also configured to perform the following operations:

[0407] The reference signal sequence configuration information is received from the first functional network element. The reference signal sequence configuration information is used to indicate the reference signal sequence.

[0408] In some embodiments, the processor is also configured to perform the following operations:

[0409] The system receives modulation mode indication information sent by the first functional network element. The modulation mode indication information is used to indicate the modulation mode of the excitation signal.

[0410] In Figure 9, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 910 and memory represented by memory 920. The bus architecture may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 900 may be multiple elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, including wireless channels, wired channels, optical fibers, etc. Processor 910 is responsible for managing the bus architecture and general processing, and memory 920 may store data used by processor 910 during operation.

[0411] The processor 910 can be a CPU, ASIC, FPGA or CPLD, and the processor can also adopt a multi-core architecture.

[0412] The processor executes any of the methods provided in the embodiments of this disclosure by invoking a computer program stored in memory, according to the obtained executable instructions. The processor and memory may also be physically separated.

[0413] It should be noted that the carrier phase measurement reporting device provided in this embodiment can implement all the method steps implemented by the method embodiment with the execution subject being an Internet of Things device, and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0414] Figure 10 is a schematic diagram of the carrier phase measurement reporting device provided in this embodiment of the present disclosure. As shown in Figure 10, the carrier phase measurement reporting device 100 includes:

[0415] The acquisition module 101 is used to acquire a first signal, which is a signal obtained by the Internet of Things device modulating an excitation signal;

[0416] Processing module 102 is used to determine the carrier phase measurement quantity corresponding to the excitation signal based on the first signal;

[0417] The first transceiver module 103 is used to send carrier phase measurement data to the first functional network element. The carrier phase measurement data is used to locate IoT devices.

[0418] In some embodiments, the processing module 102 is specifically used for:

[0419] The first signal is down-converted to obtain the channel response signal of the first signal;

[0420] The phase value of the channel response signal is determined as the carrier phase measurement.

[0421] In some embodiments, the processing module 102 is specifically used for:

[0422] Receive the excitation signal configuration information sent by the first functional network element;

[0423] Based on the excitation signal indicated by the excitation signal configuration information, the first signal is down-converted to obtain the channel response signal.

[0424] In some embodiments, the excitation signal is a signal sent by the first communication device;

[0425] or,

[0426] The excitation signal is a signal sent by the second communication device, which is a communication device other than the first communication device.

[0427] In some embodiments, the acquisition module 101 is specifically used for:

[0428] Receive the first signal sent by the IoT device;

[0429] or,

[0430] Receive a second signal, which includes a first signal sent by an IoT device and an excitation signal sent by a second communication device; and obtain the first signal from the second signal based on a reference signal sequence.

[0431] In some embodiments, the first transceiver module 103 is further configured to:

[0432] The reference signal sequence configuration information is received from the first functional network element. The reference signal sequence configuration information is used to indicate the reference signal sequence.

[0433] In some embodiments, the carrier phase measurement is carried in the positioning information, which further includes at least one of the following:

[0434] Positioning mode indication information is used to indicate that the excitation signal is a signal sent by the first communication device, or that the excitation signal is a signal sent by the second communication device;

[0435] Location indication information, used to indicate the location of the first communication device and / or the location of the second communication device;

[0436] Measurement parameter information, used to indicate the measurement parameters of the first signal.

[0437] In some embodiments, the location indication information includes at least one of the following:

[0438] The identifier of the first communication device;

[0439] Location information of the first communication device;

[0440] The identifier of the second communication device;

[0441] Location information of the second communication device.

[0442] In some embodiments, the measurement parameter information includes at least one of the following:

[0443] Angle measurement information is used to indicate the angle of arrival of the first signal at the first communication device;

[0444] Time information is used to indicate the time difference between a first moment and a second moment. The first moment is the moment when the first communication device or the second communication device sends the excitation signal, and the second moment is the moment when the first communication device acquires the first signal.

[0445] Received power information, used to indicate the received power of the first signal;

[0446] Speed ​​information, used to indicate the transmission speed of the first signal.

[0447] In some embodiments, the first transceiver module 103 is specifically used for:

[0448] Receive transmission mode indication information sent by the first functional network element. The transmission mode indication information is used to indicate the transmission mode of the carrier phase measurement. The transmission mode is either periodic transmission mode or aperiodic transmission mode.

[0449] Based on the transmission method, carrier phase measurements are sent to the first functional network element.

[0450] It should be noted that the carrier phase measurement reporting device 100 provided in this disclosure can implement all the method steps implemented by the first communication device in the above method embodiment and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0451] Figure 11 is a schematic diagram of the carrier phase measurement reporting device provided in this embodiment of the present disclosure. As shown in Figure 11, the carrier phase measurement reporting device 110 includes:

[0452] The second transceiver module 111 is used to receive carrier phase measurement data sent by the first communication device;

[0453] Among them, the carrier phase measurement is obtained based on the first signal, which is the signal obtained by the IoT device modulating the excitation signal. The carrier phase measurement is used to locate the IoT device.

[0454] In some embodiments, the excitation signal is a signal sent by the first communication device;

[0455] or,

[0456] The excitation signal is a signal sent by the second communication device, which is a communication device other than the first communication device.

[0457] In some embodiments, the carrier phase measurement is carried in the positioning information, which further includes at least one of the following:

[0458] Positioning mode indication information is used to indicate that the excitation signal is a signal sent by the first communication device, or that the excitation signal is a signal sent by the second communication device;

[0459] Location indication information, used to indicate the location of the first communication device and / or the location of the second communication device;

[0460] Measurement parameter information, used to indicate the measurement parameters of the first signal.

[0461] In some embodiments, the location indication information includes at least one of the following:

[0462] The identifier of the first communication device;

[0463] Location information of the first communication device;

[0464] The identifier of the second communication device;

[0465] Location information of the second communication device.

[0466] In some embodiments, the measurement parameter information includes at least one of the following:

[0467] Angle measurement information is used to indicate the angle of arrival of the first signal at the first communication device;

[0468] Time information is used to indicate the time difference between a first moment and a second moment. The first moment is the moment when the first communication device or the second communication device sends the excitation signal, and the second moment is the moment when the first communication device acquires the first signal.

[0469] Received power information, used to indicate the received power of the first signal;

[0470] Speed ​​information, used to indicate the transmission speed of the first signal.

[0471] In some embodiments, the second transceiver module 111 is specifically used for:

[0472] Send transmission mode indication information to the first communication device. The transmission mode indication information is used to indicate the transmission mode of the carrier phase measurement. The transmission mode is either periodic transmission mode or aperiodic transmission mode.

[0473] Based on the transmission method, the carrier phase measurement sent by the first communication device is received.

[0474] In some embodiments, the second transceiver module 111 is further configured to:

[0475] Send excitation signal configuration information to the first communication device, and / or send excitation signal configuration information to the second communication device;

[0476] Among them, the excitation signal configuration information is used to indicate the excitation signal.

[0477] In some embodiments, the second transceiver module 111 is further configured to:

[0478] Send reference signal sequence configuration information to the first communication device, and / or send reference signal sequence configuration information to the Internet of Things device;

[0479] The reference signal sequence configuration information is used to indicate the reference signal sequence, which is used to modulate the excitation signal.

[0480] In some embodiments, the second transceiver module 111 is further configured to:

[0481] Send modulation scheme indication information to IoT devices;

[0482] The modulation mode indication information is used to indicate the modulation mode of the excitation signal. The first signal is the signal obtained by the Internet of Things device modulating the excitation signal based on the modulation mode.

[0483] It should be noted that the carrier phase measurement reporting device 110 provided in this disclosure can implement all the method steps implemented by the first functional network element in the above method embodiment, and can achieve the same technical effect. Here, the parts that are the same as those in the method embodiment and the beneficial effects will not be described in detail.

[0484] Figure 12 is a schematic diagram of the carrier phase measurement reporting device provided in this embodiment of the present disclosure. As shown in Figure 12, the carrier phase measurement reporting device 120 includes:

[0485] The third transceiver module 121 is used to receive excitation signals sent by the first communication device or the second communication device;

[0486] Modulation module 122 is used to modulate the excitation signal based on the reference signal sequence to obtain the first signal;

[0487] The fourth transceiver module 123 is used to send a first signal to the first communication device. The first signal is used to determine the carrier phase measurement quantity corresponding to the excitation signal. The carrier phase measurement quantity is used to locate the Internet of Things device.

[0488] In some embodiments, the modulation module 122 is specifically used for:

[0489] Determine the modulation method of the excitation signal;

[0490] Based on the modulation method of the excitation signal and the reference signal sequence, the excitation signal is modulated to obtain the first signal.

[0491] In some embodiments, the third transceiver module 121 is further configured to:

[0492] The reference signal sequence configuration information is received from the first functional network element. The reference signal sequence configuration information is used to indicate the reference signal sequence.

[0493] In some embodiments, the third transceiver module 121 is further configured to:

[0494] The system receives modulation mode indication information sent by the first functional network element. The modulation mode indication information is used to indicate the modulation mode of the excitation signal.

[0495] It should be noted that the carrier phase measurement reporting device 120 provided in this disclosure can implement all the method steps implemented by the IoT device in the above method embodiment and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0496] It should be noted that the division of units in the embodiments of this disclosure is illustrative and only represents one logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of this disclosure can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated units described above can be implemented in hardware or as software functional units.

[0497] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of this disclosure, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods of the various embodiments of this disclosure. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0498] This disclosure also provides a non-transitory readable storage medium storing a computer program that causes a processor to execute all the method steps described in the above method embodiments.

[0499] Non-transiently readable storage media can be any available medium or data storage device that the processor can access, including but not limited to magnetic storage (e.g., floppy disks, hard disks, magnetic tapes, magneto-optical disks (MOs), etc.), optical storage (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND flash), solid-state drives (SSDs)).

[0500] This disclosure also provides a computer program product, including a computer program that, when executed by a processor, implements any of the methods described in the above embodiments.

[0501] Those skilled in the art will understand that embodiments of this disclosure can be provided as methods, systems, or computer program products. Therefore, this disclosure can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this disclosure can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage) containing computer-usable program code.

[0502] This disclosure is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this disclosure. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in one or more flowchart illustrations and / or one or more block diagrams.

[0503] These processor-executable instructions may also be stored in a processor-readable memory that can instruct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means that implement the functions specified in one or more flowcharts and / or one or more block diagrams.

[0504] These processor-executable instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, such that the instructions, which execute on the computer or other programmable apparatus, provide steps for implementing the functions specified in one or more flowcharts and / or one or more block diagrams.

[0505] Obviously, those skilled in the art can make various modifications and variations to this disclosure without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims of this disclosure and their equivalents, this disclosure is also intended to include such modifications and variations.

Claims

1. A method for reporting carrier phase measurements, applied to a first communication device, the method comprising: Acquire a first signal, which is a signal obtained by the Internet of Things device modulating an excitation signal; Based on the first signal, determine the carrier phase measurement quantity corresponding to the excitation signal; The carrier phase measurement is sent to the first functional network element, and the carrier phase measurement is used to locate the Internet of Things device.

2. The method according to claim 1, wherein, The step of determining the carrier phase measurement corresponding to the excitation signal based on the first signal includes: The first signal is down-converted to obtain the channel response signal of the first signal; The phase value of the channel response signal is determined as the carrier phase measurement.

3. The method according to claim 2, wherein, The step of down-converting the first signal to obtain the channel response signal of the first signal includes: Receive the excitation signal configuration information sent by the first functional network element; Based on the excitation signal indicated by the excitation signal configuration information, the first signal is down-converted to obtain the channel response signal.

4. The method according to any one of claims 1-3, wherein, The excitation signal is a signal sent by the first communication device; or, The excitation signal is a signal sent by a second communication device, which is a communication device other than the first communication device.

5. The method according to claim 4, wherein, The acquisition of the first signal includes: Receive the first signal sent by the IoT device; or, Receive a second signal, the second signal including the first signal sent by the IoT device and the excitation signal sent by the second communication device; obtain the first signal from the second signal based on a reference signal sequence.

6. The method according to claim 5, wherein, The method further includes: The reference signal sequence configuration information sent by the first functional network element is received, wherein the reference signal sequence configuration information is used to indicate the reference signal sequence.

7. The method according to any one of claims 4-6, wherein, The carrier phase measurement is carried in the positioning information, which further includes at least one of the following: Positioning mode indication information is used to indicate that the excitation signal is a signal sent by the first communication device, or that the excitation signal is a signal sent by the second communication device; Location indication information, used to indicate the location of the first communication device and / or the location of the second communication device; Measurement parameter information, used to indicate the measurement parameters of the first signal.

8. The method according to claim 7, wherein, The location indication information includes at least one of the following: The identifier of the first communication device; Location information of the first communication device; The identifier of the second communication device; The location information of the second communication device.

9. The method according to claim 7, wherein, The measurement parameter information includes at least one of the following: Angle measurement information is used to indicate the angle of arrival of the first signal at the first communication device; Time information is used to indicate the time difference between a first moment and a second moment, wherein the first moment is the moment when the first communication device or the second communication device sends the excitation signal, and the second moment is the moment when the first communication device acquires the first signal; Received power information, used to indicate the received power of the first signal; Speed ​​information, used to indicate the transmission speed of the first signal.

10. The method according to any one of claims 1-9, wherein, Sending the carrier phase measurement to the first functional network element includes: The system receives transmission mode indication information sent by the first functional network element. The transmission mode indication information is used to indicate the transmission mode of the carrier phase measurement. The transmission mode is either a periodic transmission mode or an aperiodic transmission mode. Based on the transmission method, the carrier phase measurement is sent to the first functional network element.

11. A method for reporting carrier phase measurements, applied to a first functional network element, the method comprising: Receive carrier phase measurement data sent by the first communication device; The carrier phase measurement is obtained based on a first signal, which is a signal obtained by the IoT device modulating an excitation signal. The carrier phase measurement is used to locate the IoT device.

12. The method according to claim 11, wherein, The excitation signal is a signal sent by the first communication device; or, The excitation signal is a signal sent by a second communication device, which is a communication device other than the first communication device.

13. The method according to claim 12, wherein, The carrier phase measurement is carried in the positioning information, which further includes at least one of the following: Positioning mode indication information is used to indicate that the excitation signal is a signal sent by the first communication device, or that the excitation signal is a signal sent by the second communication device; Location indication information, used to indicate the location of the first communication device and / or the location of the second communication device; Measurement parameter information, used to indicate the measurement parameters of the first signal.

14. The method according to claim 13, wherein, The location indication information includes at least one of the following: The identifier of the first communication device; Location information of the first communication device; The identifier of the second communication device; The location information of the second communication device.

15. The method according to claim 13, wherein, The measurement parameter information includes at least one of the following: Angle measurement information is used to indicate the angle of arrival of the first signal at the first communication device; Time information is used to indicate the time difference between a first moment and a second moment, wherein the first moment is the moment when the first communication device or the second communication device sends the excitation signal, and the second moment is the moment when the first communication device acquires the first signal; Received power information, used to indicate the received power of the first signal; Speed ​​information, used to indicate the transmission speed of the first signal.

16. The method according to any one of claims 11-15, wherein, The carrier phase measurement received from the first communication device includes: Send transmission mode indication information to the first communication device. The transmission mode indication information is used to indicate the transmission mode of the carrier phase measurement. The transmission mode is either a periodic transmission mode or an aperiodic transmission mode. Based on the transmission method, the carrier phase measurement sent by the first communication device is received.

17. The method according to any one of claims 12-15, wherein, The method further includes: Send excitation signal configuration information to the first communication device, and / or send the excitation signal configuration information to the second communication device; The excitation signal configuration information is used to indicate the excitation signal.

18. The method according to any one of claims 11-15, wherein, The method further includes: Send reference signal sequence configuration information to the first communication device, and / or send the reference signal sequence configuration information to the Internet of Things device; The reference signal sequence configuration information is used to indicate a reference signal sequence, which is used to modulate the excitation signal.

19. The method according to any one of claims 11-15, wherein, The method further includes: Send modulation scheme indication information to the IoT device; The modulation mode indication information is used to indicate the modulation mode of the excitation signal, and the first signal is a signal obtained by the Internet of Things device modulating the excitation signal based on the modulation mode.

20. A method for reporting carrier phase measurements, applied to an Internet of Things (IoT) device, the method comprising: Receive excitation signals sent by the first or second communication device; The excitation signal is modulated based on the reference signal sequence to obtain a first signal; The first signal is sent to the first communication device. The first signal is used to determine the carrier phase measurement corresponding to the excitation signal. The carrier phase measurement is used to locate the Internet of Things device.

21. The method according to claim 20, wherein, The modulation of the excitation signal based on the reference signal sequence to obtain the first signal includes: Determine the modulation scheme of the excitation signal; Based on the modulation scheme of the excitation signal and the reference signal sequence, the excitation signal is modulated to obtain the first signal.

22. The method according to claim 21, wherein, The method further includes: The reference signal sequence configuration information is received from the first functional network element, and the reference signal sequence configuration information is used to indicate the reference signal sequence.

23. The method according to claim 21 or 22, wherein, The method further includes: The system receives modulation mode indication information sent by a first functional network element, the modulation mode indication information being used to indicate the modulation mode of the excitation signal.

24. A carrier phase measurement reporting device, applied to a first communication device, the device comprising: The acquisition module is used to acquire a first signal, which is a signal obtained by the Internet of Things device modulating an excitation signal; The processing module is used to determine the carrier phase measurement quantity corresponding to the excitation signal based on the first signal; The first transceiver module is used to send the carrier phase measurement to the first functional network element, and the carrier phase measurement is used to locate the Internet of Things device.

25. A carrier phase measurement reporting device, applied to a first functional network element, the device comprising: The second transceiver module is used to receive carrier phase measurements sent by the first communication device; The carrier phase measurement is obtained based on a first signal, which is a signal obtained by the IoT device modulating an excitation signal. The carrier phase measurement is used to locate the IoT device.

26. A carrier phase measurement reporting device, applied to an Internet of Things (IoT) device, the device comprising: The third transceiver module is used to receive excitation signals sent by the first or second communication device; A modulation module is used to modulate the excitation signal based on a reference signal sequence to obtain a first signal; The fourth transceiver module is used to send the first signal to the first communication device. The first signal is used to determine the carrier phase measurement corresponding to the excitation signal. The carrier phase measurement is used to locate the Internet of Things device.

27. A device for reporting carrier phase measurements, comprising: Memory, transceiver, and processor, The memory is used to store computer programs; The transceiver is used to send and receive data under the control of the processor; The processor is configured to read the computer program in the memory and execute the method according to any one of claims 1-10.

28. A device for reporting carrier phase measurements, comprising: Memory, transceiver, and processor, The memory is used to store computer programs; The transceiver is used to send and receive data under the control of the processor; The processor is configured to read the computer program in the memory and execute the method according to any one of claims 11-19.

29. A device for reporting carrier phase measurements, comprising: Memory, transceiver, and processor, The memory is used to store computer programs; The transceiver is used to send and receive data under the control of the processor; The processor is configured to read the computer program in the memory and execute the method according to any one of claims 20-23.

30. A non-transient readable storage medium storing a computer program for causing a processor to perform the method of any one of claims 1 to 10, or for causing a processor to perform the method of any one of claims 11 to 19, or for causing a processor to perform the method of any one of claims 20 to 23.

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