Method and electronic device for processing information

Abstract

The application provides a method for information processing and an electronic device, and relates to the field of communication. In the application, a first device can determine position information of a second device according to first frequency difference value information and second frequency difference value information. The first frequency difference value information indicates a frequency difference value of reference signals of the second device received from two devices, that is, the first frequency difference value information is the frequency difference value of the reference signals of the second device received from the two devices. The first frequency difference value information can reduce the influence of local frequency error of the second device. The frequency difference value of the reference signals of the second device received from the two devices is also related to the frequency difference value of the reference signals transmitted by the two devices. Therefore, the influence of the frequency error of the reference signals transmitted by the two devices can be reduced through the second frequency difference value, so that the accuracy of the determination of the position information of the second device can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication, and more particularly to a method for information processing and an electronic device. BACKGROUND

[0002] If the device receives the reference signal in the process of moving, the frequency of receiving the reference signal will be offset due to the Doppler effect. The value of the frequency offset is related to the angle of the device receiving the reference signal relative to the device sending the reference signal, and thus the angle of the device receiving the reference signal relative to the device sending the reference signal can be determined according to the value of the frequency offset. However, if the clock frequency of the device sending the reference signal is not synchronized with the clock frequency of the device receiving the reference signal, the calculated frequency offset value will not be the real frequency offset value, and thus if the angle of the device receiving the reference signal relative to the device sending the reference signal is determined by using the non-real frequency offset value, the determined angle will not be accurate, and thus the positioning effect will be poor. SUMMARY

[0003] Embodiments of the present application provide a method for information processing and an electronic device, which can improve the accuracy of positioning.

[0004] In a first aspect, a method for information processing is provided, which is applicable to a first device and includes: obtaining first frequency difference value information, the first frequency difference value information being used to indicate the difference between the frequency of a second device receiving a first reference signal of a third device and the frequency of the second device receiving a second reference signal of a fourth device; obtaining second frequency difference value information, the second frequency difference value information being used to indicate the difference between the frequency of the third device sending the first reference signal and the frequency of the fourth device sending the second reference signal; and determining the position information of the second device according to the first frequency difference value information and the second frequency difference value information.

[0005] In the above scheme, the first device can determine the position information of the second device according to the first frequency difference value information and the second frequency difference value information, wherein the first frequency difference value information indicates the frequency difference between the reference signals of the two devices received by the second device, that is, the first frequency difference value information is the frequency difference between the reference signals of the two devices received by the second device, and the first frequency difference value information can reduce the influence of the local frequency error of the second device, and the frequency difference between the reference signals of the two devices received by the second device is also related to the frequency difference between the reference signals sent by the two devices, and thus the influence of the frequency error of the two devices sending the reference signals can be reduced by the second frequency difference value, so as to improve the accuracy of determining the position information of the second device.

[0006] If the clock frequency of the second device is inconsistent with the actual frequency, the inconsistency can be reduced by the first frequency difference information, so that the influence of the inconsistency of the clock frequency of the second device with the actual frequency can be reduced in the process of determining the position information of the second device, and the frequency difference of the reference signals received by the second device from the two devices is also related to the frequency difference of the reference signals transmitted by the two devices, so that the influence of the frequency difference of the reference signals transmitted by the two devices can be reduced by the second frequency difference, thereby improving the accuracy of determining the position information of the second device.

[0007] Optionally, the first frequency difference information is used to indicate a difference between a frequency offset of the first reference signal received by the second device from the third device and a frequency offset of the second reference signal received by the second device from the fourth device.

[0008] Optionally, the first frequency difference information is used to indicate a difference between a Doppler frequency offset of the first reference signal received by the second device from the third device and a Doppler frequency offset of the second reference signal received by the second device from the fourth device.

[0009] Optionally, the Doppler frequency offset of the first reference signal received by the second device from the third device is related to the frequency of the first reference signal transmitted by the third device.

[0010] Optionally, the Doppler frequency offset of the second reference signal received by the second device from the fourth device is related to the frequency of the second reference signal transmitted by the fourth device.

[0011] Optionally, the first device can be a terminal device or can be a core network device or can be an access network device.

[0012] Optionally, when the first device is a core network device, the first device can be a location management function (LMF) unit.

[0013] Optionally, the second device is in a motion state.

[0014] Optionally, the position information of the second device is used to indicate coordinates of the second device.

[0015] In some possible implementation manners, the method further includes: obtaining motion speed information of the second device; and wherein the determining the position information of the second device according to the first frequency difference information and the second frequency difference information includes: determining the position information of the second device according to the first frequency difference information, the second frequency difference information, and the motion speed information of the second device.

[0016] Optionally, the motion speed information of the second device is used to indicate the magnitude and / or direction of the motion speed of the second device.

[0017] In the above scheme, the first device can determine the position information of the second device based on the movement speed information, the first frequency difference information, and the second frequency difference information of the second device. Since the movement of the second device will cause Doppler frequency shift, this can improve the accuracy of determining the position information of the second device.

[0018] In some possible implementations, the method further includes: acquiring third frequency difference information, the third frequency difference information being used to indicate the difference between the frequency at which the second device receives a third reference signal from the fifth device and the frequency at which the second device receives a second reference signal from the fourth device; acquiring fourth frequency difference information, the fourth frequency difference information being used to indicate the difference between the frequency at which the fourth device transmits the second reference signal and the frequency at which the fifth device transmits the third reference signal;

[0019] The step of determining the position information of the second device based on the first frequency difference information, the second frequency difference information, and the movement speed information of the second device includes:

[0020] The position information of the second device is determined based on the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information, and the movement speed information of the second device.

[0021] In the above scheme, the first device can determine the position information of the second device using four frequency difference information and the movement speed information of the second device. The first and third frequency difference information indicate the frequency difference of the reference signal received by the second device, respectively, and the second and fourth frequency difference information indicate the frequency difference of the reference signal transmitted. In this way, the influence of the local frequency error of the second device can be reduced by using the first and third frequency difference information, and the influence of the frequency error of the transmitted reference signal can be reduced by using the second and fourth frequency difference information, thereby improving the accuracy of determining the position information of the second device.

[0022] Optionally, the third frequency difference information is used to indicate the difference between the frequency offset of the third reference signal received by the second device from the fifth device and the frequency offset of the second reference signal received by the second device from the fourth device.

[0023] Optionally, the third frequency difference information is used to indicate the difference between the Doppler frequency offset of the third reference signal received by the second device from the fifth device and the Doppler frequency offset of the second reference signal received by the second device from the fourth device.

[0024] Optionally, the second device receives that the Doppler frequency offset of the third reference signal of the fifth device is related to the frequency at which the fifth device transmits the third reference signal.

[0025] In some possible implementation manners, the determining the position information of the second device according to the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information, and the motion speed information of the second device comprises:

[0026] The position information of the second device is determined according to the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information, the motion speed information of the second device, the wavelength at which the third device transmits the first reference signal, the wavelength at which the fourth device transmits the second reference signal, and the wavelength at which the fifth device transmits the third reference signal.

[0027] In the foregoing solution, since the wavelength at which the reference signal is transmitted can affect the frequency offset, the first device can determine the position information of the second device according to the four frequency difference information, the motion speed information of the second device, and the wavelengths at which the three devices respectively transmit the three reference signals, so that the accuracy of determining the position information of the second device can be improved.

[0028] In some possible implementation manners, the method further comprises: obtaining first time difference information, the first time difference information being used to indicate a difference between a time at which the second device receives the first reference signal of the third device and a time at which the second device receives the second reference signal of the fourth device.

[0029] The determining the position information of the second device according to the first frequency difference information, the second frequency difference information, and the motion speed information of the second device comprises:

[0030] The position information of the second device is determined according to the first frequency difference information, the second frequency difference information, the first time difference information, and the motion speed information of the second device.

[0031] In the foregoing solution, the first device can determine the position information of the second device according to the difference between the times at which the second device receives the two reference signals, the difference between the frequencies at which the two reference signals are received, the difference between the frequencies at which the two devices transmit the two reference signals, and the motion speed information of the second device, that is, the position information of the second device can be determined by the two devices transmitting the reference signals, without the need for the three devices transmitting the reference signals, so that the design can be simplified.

[0032] Optionally, the method further comprises: obtaining second time difference value information, the second time difference value information being used to indicate a difference between a time at which the third device transmits the first reference signal and a time at which the fourth device transmits the second reference signal; and wherein the determining the position information of the second device according to the first frequency difference value information, the second frequency difference value information, the first time difference value information, and the motion speed information of the second device comprises: determining the position information of the second device according to the first frequency difference value information, the second frequency difference value information, the first time difference value information, the second time difference value information, and the motion speed information of the second device.

[0033] In the foregoing solution, the first device can determine the position information of the second device according to a difference between times at which the second device receives the two reference signals, a difference between times at which the third device and the second device transmit the two reference signals, a difference between frequencies at which the second device receives the two reference signals, a difference between frequencies at which the third device and the fourth device transmit the two reference signals, and the motion speed information of the second device, that is, the position information of the second device can be determined by the two devices transmitting the reference signals, without the need for the three devices transmitting the reference signals, which can simplify the design.

[0034] In some possible implementation manners, the determining the position information of the second device according to the first frequency difference value information, the second frequency difference value information, the first time difference value information, and the motion speed information of the second device comprises:

[0035] The position information of the second device is determined according to the first frequency difference value information, the second frequency difference value information, the first time difference value information, the motion speed information of the second device, a wavelength at which the third device transmits the first reference signal, and a wavelength at which the fourth device transmits the second reference signal.

[0036] In the foregoing solution, since the wavelength at which the reference signal is transmitted can affect the frequency offset, the first device can determine the position information of the second device according to the two frequency difference value information, the motion speed information of the second device, and the wavelengths at which the two devices respectively transmit the two reference signals, thereby improving the accuracy of determining the position information of the second device.

[0037] Optionally, the method further comprises: obtaining second time difference value information, the second time difference value information being used to indicate a difference between a time at which the third device transmits the first reference signal and a time at which the fourth device transmits the second reference signal; and wherein the determining the position information of the second device according to the first frequency difference value information, the second frequency difference value information, the first time difference value information, the motion speed information of the second device, a wavelength at which the third device transmits the first reference signal, and a wavelength at which the fourth device transmits the second reference signal comprises: determining the position information of the second device according to the first frequency difference value information, the second frequency difference value information, the first time difference value information, the second time difference value information, the motion speed information of the second device, the wavelength at which the third device transmits the first reference signal, and the wavelength at which the fourth device transmits the second reference signal.

[0038] In some possible implementation manners, the first device and the second device are a same terminal device, and before the obtaining the first frequency difference value information, the method further comprises: receiving first information, the first information being used to indicate that the second device determines the position information of the second device.

[0039] In the foregoing solution, the terminal device can determine the position information of the terminal device, and the terminal device can trigger the terminal device to determine the position information of the terminal device after receiving the first information indicating that the terminal device determines the position information of the terminal device.

[0040] Optionally, the receiving the first information comprises: receiving the first information from a core network device; and optionally, the receiving the first information from the core network device comprises: receiving the first information from a location management function unit.

[0041] In some possible implementation manners, the first device and the second device are a same terminal device, and the obtaining the second frequency difference value information comprises:

[0042] The receiving the second frequency difference value information.

[0043] Optionally, the receiving the second frequency difference value information comprises: receiving the second frequency difference value information from a core network device; and optionally, the receiving the second frequency difference value information from the core network device comprises: receiving the second frequency difference value information from a location management function unit.

[0044] In some possible implementation manners, the first device and the second device are a same terminal device, and the obtaining the fourth frequency difference value information comprises: receiving the fourth frequency difference value information.

[0045] Optionally, the receiving the fourth frequency difference value information comprises: receiving the fourth frequency difference value information from the core network device. Optionally, the receiving the fourth frequency difference value information from the core network device comprises: receiving the fourth frequency difference value information from the location management function unit.

[0046] In some possible implementation manners, the first device and the second device are the same terminal device, and the obtaining the second time difference value information comprises: receiving the second time difference value information. Optionally, the receiving the second time difference value information comprises: receiving the second time difference value information from the core network device; and optionally, the receiving the second time difference value information from the core network device comprises: receiving the second time difference value information from the location management function unit.

[0047] In some possible implementation manners, the first device is a location management function unit, and before the obtaining the first frequency difference value information, the method further comprises:

[0048] sending second information to the second device, the second information being used for indicating to the second device that the first device needs to measure position information of the second device;

[0049] The obtaining the first frequency difference value information comprises:

[0050] receiving the first frequency difference value information from the second device.

[0051] In the above scheme, the location management function unit can send second information to the second device to indicate that the location management function unit needs to measure the position information of the second device, based on the second information, the second device can send the first frequency difference value information to the location management function unit, and the location management function unit can receive the first frequency difference value information from the second device.

[0052] Optionally, the method further comprises: receiving third frequency difference value information from the second device. After the location management function unit sends the second information to the second device, the third frequency difference value information can be received from the second device.

[0053] Optionally, the method further comprises: receiving first time difference value information from the second device. After the location management function unit sends the second information to the second device, the first time difference value information can be received from the second device.

[0054] In some possible implementation manners, the first device is a location management function unit, and before the obtaining the second frequency difference value information, the method further comprises:

[0055] sending third information to a fourth device, the third information being used for requesting frequency difference value information from the fourth device;

[0056] The obtaining the second frequency difference value information comprises:

[0057] The fourth device receives the second frequency difference value information.

[0058] In the above solution, the location management function unit can send third information to the fourth device, the third information being used for requesting frequency difference value information, and the fourth device sends second frequency difference value information to the location management function unit after receiving the third information.

[0059] Optionally, the fourth device sends fourth frequency difference value information to the location management function unit after receiving the third information.

[0060] Optionally, the third information is also used for requesting time difference value information, and the fourth device sends second time difference value information to the location management function unit after receiving the third information.

[0061] In a second aspect, a method for processing information is provided, the method being applicable to a second device, and the method comprising:

[0062] receiving second information, the second information being used for indicating to the second device that a first device needs to measure position information of the second device;

[0063] sending first frequency difference value information, the first frequency difference value information being used for indicating a difference between a frequency at which the second device receives a first reference signal of a third device and a frequency at which the second device receives a second reference signal of a fourth device, and the first frequency difference value information being used for determining the position information of the second device.

[0064] In the above solution, the second device sends the first frequency difference value information after receiving the second information, so that the first device can determine the position information of the second device according to the first frequency difference value information.

[0065] In some possible implementation manners, the method further comprises: sending motion speed information of the second device, the motion speed information of the second device being used for determining the position information of the second device.

[0066] Optionally, the second device sends the motion speed information of the second device after receiving the second information.

[0067] In some possible implementation manners, the method further comprises: sending third frequency difference value information, the third frequency difference value information being used for indicating a difference between a frequency at which the second device receives a third reference signal of a fifth device and a frequency at which the second device receives the second reference signal of the fourth device, and the third frequency difference value information being used for determining the position information of the second device.

[0068] In some possible implementation manners, the first time difference value information is used for indicating a difference between a time when the second device receives the first reference signal of the third device and a time when the second device receives the second reference signal of the fourth device, and the first time difference value information is used for determining the position information of the second device.

[0069] In a third aspect, a method for information processing is provided, and the method is applicable to a fourth device and includes: receiving third information, the third information being used for requesting frequency difference value information from the fourth device; and sending second frequency difference value information, the second frequency difference value information being used for indicating a difference between a frequency at which the fourth device sends the second reference signal and a frequency at which a third device sends the first reference signal, and the second frequency difference value information being used for determining position information of the second device.

[0070] In some possible implementation manners, the method further includes:

[0071] sending fourth frequency difference value information, the fourth frequency difference value information being used for indicating a difference between the frequency at which the fourth device sends the second reference signal and a frequency at which a fifth device sends the third reference signal, and the fourth frequency difference value information being used for determining the position information of the second device.

[0072] In a fourth aspect, a method for information processing is provided, and the method is applicable to a first device and includes:

[0073] obtaining first frequency difference value information, the first frequency difference value information being used for indicating a difference between a frequency at which a second device receives a first reference signal of a third device and a frequency at which the second device receives a second reference signal of a fourth device;

[0074] obtaining second frequency difference value information, the second frequency difference value information being used for indicating a difference between a frequency at which a fourth device sends the second reference signal and a frequency at which a third device sends the first reference signal;

[0075] obtaining third frequency difference value information, the third frequency difference value information being used for indicating a difference between a frequency at which the second device receives a third reference signal of a fifth device and a frequency at which the second device receives the second reference signal of the fourth device;

[0076] obtaining fourth frequency difference value information, the fourth frequency difference value information being used for indicating a difference between the frequency at which the fourth device sends the second reference signal and a frequency at which the fifth device sends the third reference signal;

[0077] obtaining first time difference value information, the first time difference value information being used for indicating a difference between a time instant at which the second device receives a first reference signal of the third device and a time instant at which the second device receives a second reference signal of the fourth device;

[0078] obtaining third time difference value information, the third time difference value information being used for indicating a difference between a time instant at which the second device receives the second reference signal of the fourth device and a time instant at which the second device receives a third reference signal of a fifth device.

[0079] determining position information of the second device and / or motion speed information of the second device according to the first frequency difference value information, the second frequency difference value information, third frequency difference value information, fourth frequency difference value information, first time difference value information and third time difference value information.

[0080] In the foregoing solution, the first frequency difference value information can reduce the influence of the local frequency error of the second device when receiving the reference signals from the third device and the fourth device, and the frequency difference of the reference signals received by the second device from the third device and the fourth device also has a relationship with the frequency difference of the reference signals sent by the third device and the fourth device, so the second frequency difference value information can reduce the influence of the frequency error of the third device and the fourth device when sending the reference signals. The third frequency difference value information can reduce the influence of the local frequency error of the second device when receiving the reference signals from the fifth device and the fourth device, and the frequency difference of the reference signals received by the second device from the fifth device and the fourth device also has a relationship with the frequency difference of the reference signals sent by the fifth device and the fourth device, so the fourth frequency difference value information can reduce the influence of the frequency error of the fifth device and the fourth device when sending the reference signals; because the distance from the second device to the third device is different from the distance from the second device to the fourth device, the transmission time of the first reference signal sent by the third device and the second reference signal sent by the fourth device to the second device is different, and in the case of a certain transmission speed, the first time difference value information can represent the difference between the distance from the second device to the third device and the distance from the second device to the fourth device; because the distance from the second device to the fifth device is different from the distance from the second device to the fourth device, the transmission time of the third reference signal sent by the fifth device and the second reference signal sent by the fourth device to the second device is different, and in the case of a certain transmission speed, the third time difference value information can represent the difference between the distance from the second device to the fifth device and the distance from the second device to the fourth device. Therefore, the first device can determine the position information of the second device and / or the motion speed information of the second device according to the four frequency difference value information and the two time difference value information, which can improve the accuracy of determining the position information and the motion speed information of the second device; if the first device determines the position information of the second device and the motion speed information of the second device, not only the second device can be positioned, but also the motion speed of the second device can be obtained, so that the positioning can be more accurate.

[0081] Optionally, the motion speed information of the second device is used for indicating the size of the motion speed and / or the direction of the motion speed.

[0082] In some possible implementation manners, the method further includes:

[0083] obtaining second time difference value information, the second time difference value information being used for indicating the difference between the time when the third device sends the first reference signal and the time when the fourth device sends the second reference signal;

[0084] obtaining fourth time difference value information, the fourth time difference value information being used for indicating the difference between the time when the fifth device sends the third reference signal and the time when the fourth device sends the second reference signal.

[0085] The determining of the position information of the second device and / or the motion speed information of the second device according to the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information, the first time difference information, the second time difference information, the third time difference information and the fourth time difference information comprises:

[0086] The determining of the position information of the second device and / or the motion speed information of the second device according to the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information, the first time difference information, the second time difference information, the third time difference information and the fourth time difference information comprises:

[0087] In the above scheme, since the distance from the second device to the third device is different from the distance from the second device to the fourth device, the transmission time of the first reference signal sent by the third device and the second reference signal sent by the fourth device to the second device is different, and the first device needs to know the difference between the time of sending the first reference signal by the third device and the time of sending the second reference signal by the fourth device, so as to determine the difference in time of transmitting the first reference signal and the second reference signal. Under the condition that the transmission speed is constant, the difference in time of transmitting the first reference signal and the second reference signal can represent the difference between the distance from the second device to the third device and the distance from the second device to the fourth device. Since the distance from the second device to the fifth device is different from the distance from the second device to the fourth device, the transmission time of the third reference signal sent by the fifth device and the second reference signal sent by the fourth device to the second device is different, and the first device needs to know the difference between the time of sending the second reference signal by the fourth device and the time of sending the third reference signal by the fifth device, so as to determine the difference in time of transmitting the third reference signal and the second reference signal. Under the condition that the transmission speed is constant, the difference in time of transmitting the third reference signal and the second reference signal can represent the difference between the distance from the second device to the fifth device and the distance from the second device to the fourth device. In this way, the position information of the second device and / or the motion speed information of the second device determined by using four time difference information and four frequency difference information is more accurate.

[0088] In some possible implementation manners, the determining of the position information of the second device and / or the motion speed information of the second device according to the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information, the first time difference information, the second time difference information, the third time difference information and the fourth time difference information comprises:

[0089] The position information of the second device and / or the motion speed information of the second device is determined according to the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information, the first time difference information, the second time difference information, the third time difference information, the fourth time difference information, the wavelength of the first reference signal, the wavelength of the second reference signal, and the wavelength of the third reference signal.

[0090] In the foregoing scheme, since the wavelength of the transmitted reference signal can affect the frequency offset, the first device can determine the position information of the second device according to four frequency difference information, four time difference information, and the wavelengths of the three reference signals transmitted by the three devices respectively, so that the accuracy of determining the position information of the second device can be improved.

[0091] In some possible implementation manners, the first device and the second device are the same terminal device, and before the first frequency difference information is acquired, the method further includes:

[0092] The first information is received, and the first information is used to instruct the second device to measure the position information of the second device.

[0093] Optionally, receiving the first information can include: receiving the first information from a core network device. Optionally, the core network device can include an LMF unit.

[0094] Optionally, the first device can acquire one or more of the first frequency difference information, the third frequency difference information, the first time difference information, and the third time difference information based on the first information.

[0095] Optionally, the first device and the second device are the same terminal device, and acquiring the second frequency difference information includes: receiving the second frequency difference information; and optionally, receiving the second frequency difference information includes: receiving the second frequency difference information from a core network device. Optionally, the core network device includes an LMF unit.

[0096] In some possible implementation manners, the first device and the second device are the same terminal device, and acquiring the fourth frequency difference information includes: receiving the fourth frequency difference information; and optionally, receiving the fourth frequency difference information includes: receiving the fourth frequency difference information from a core network device. Optionally, the core network device includes an LMF unit.

[0097] In some possible implementation manners, the first device and the second device are the same terminal device, and acquiring the second time difference information includes: receiving the second time difference information; and optionally, receiving the second time difference information includes: receiving the second time difference information from a core network device. Optionally, the core network device includes an LMF unit.

[0098] In some possible implementation manners, the first device and the second device are the same terminal device, and the fourth time difference value information is acquired by receiving the fourth time difference value information. Optionally, the fourth time difference value information is received from a core network device. Optionally, the core network device comprises an LMF unit.

[0099] Optionally, the first device can simultaneously receive at least two of the second frequency difference value information, the fourth frequency difference value information, the second time difference value information or the fourth time difference value information.

[0100] In some possible implementation manners, the first device is a core network device. Optionally, the core network device comprises an LMF unit. The first frequency difference value information is acquired by receiving the first frequency difference value information. Optionally, the first frequency difference value information is received from the second device.

[0101] In some possible implementation manners, the first device is a core network device. Optionally, the core network device comprises an LMF unit. The third frequency difference value information is acquired by receiving the third frequency difference value information. Optionally, the third frequency difference value information is received from the second device.

[0102] In some possible implementation manners, the first device is a core network device. Optionally, the core network device comprises an LMF unit. The first time difference value information is acquired by receiving the first time difference value information. Optionally, the first time difference value information is received from the second device.

[0103] In some possible implementation manners, the first device is a core network device. Optionally, the core network device comprises an LMF unit. The third time difference value information is acquired by receiving the third time difference value information. Optionally, the third time difference value information is received from the second device.

[0104] In some possible implementation manners, the first device is a core network device. Optionally, the core network device comprises an LMF unit. The method further comprises sending, to the second device, second information used to indicate to the second device that the first device needs to measure the position information of the second device. Optionally, the second device can send one or more of the first frequency difference value information, the third frequency difference value information, the first time difference value information or the third time difference value information to the core network device based on the first information.

[0105] In some possible implementation manners, the first device is a core network device. Optionally, the core network device comprises an LMF unit. The acquiring the second frequency difference value information comprises: receiving the second frequency difference value information; and optionally, the receiving the second frequency difference value information comprises: receiving the second frequency difference value information from a fourth device.

[0106] In some possible implementation manners, the first device is a core network device. Optionally, the core network device comprises an LMF unit. The acquiring the fourth frequency difference value information comprises: receiving the fourth frequency difference value information; and optionally, the receiving the fourth frequency difference value information comprises: receiving the fourth frequency difference value information from a fourth device.

[0107] In some possible implementation manners, the first device is a core network device. Optionally, the core network device comprises an LMF unit. The acquiring the second time difference value information comprises: receiving the second time difference value information; and optionally, the receiving the second time difference value information comprises: receiving the second time difference value information from a fourth device.

[0108] In some possible implementation manners, the first device is a core network device. Optionally, the core network device comprises an LMF unit. The acquiring the fourth time difference value information comprises: receiving the fourth time difference value information; and optionally, the receiving the fourth time difference value information comprises: receiving the fourth time difference value information from a fourth device.

[0109] In some possible implementation manners, the first device is a core network device. Optionally, the core network device comprises an LMF unit. The method further comprises sending, to a fourth device, third information, the third information being used for determining, by the fourth device, a parameter related to the second device position information, or the third information being used for requesting, by the fourth device, frequency difference value information and / or time difference value information. Optionally, the fourth device can send one or more of the second frequency difference value information, the fourth frequency difference value information, the second time difference value information or the fourth time difference value information to the core network device based on the third information.

[0110] In a fifth aspect, a method for information processing is provided, the method being applicable to a second device, and comprising:

[0111] receiving second information, the second information being used for indicating, to the second device, that a first device needs to measure position information of the second device and / or motion speed information of the second device;

[0112] transmitting first frequency difference information, third frequency difference information, first time difference information and third time difference information; the first frequency difference information is used to indicate a difference between a frequency at which the second device receives a first reference signal of a third device and a frequency at which the second device receives a second reference signal of a fourth device, the third frequency difference information is used to indicate a difference between a frequency at which the second device receives the second reference signal of the fourth device and a frequency at which the second device receives a third reference signal of a fifth device, the first time difference information is used to indicate a difference between a time at which the second device receives the first reference signal of the third device and a time at which the second device receives the second reference signal of the fourth device, and the third time difference information is used to indicate a difference between a time at which the second device receives the second reference signal of the fourth device and a time at which the second device receives the third reference signal of the fifth device; wherein the first frequency difference information, the third frequency difference information, the first time difference information and the third time difference information are used to determine position information of the second device and / or motion speed information of the second device.

[0113] Optionally, the second device can simultaneously transmit at least two of the first frequency difference information, the third frequency difference information, the first time difference information and the third time difference information, or separately transmit the first frequency difference information, the third frequency difference information, the first time difference information and the third time difference information.

[0114] In a sixth aspect, a method for information processing is provided, which is adapted to a fourth device and includes:

[0115] receiving third information, the third information being used to request frequency difference information and / or time difference information from the fourth device;

[0116] transmitting second frequency difference information, fourth frequency difference information, second time difference information and fourth time difference information; the second frequency difference information is used to indicate a difference between a frequency at which a third device transmits a first reference signal and a frequency at which a fourth device transmits a second reference signal, the fourth frequency difference information is used to indicate a difference between a frequency at which the fourth device transmits the second reference signal and a frequency at which a fifth device transmits the third reference signal, the second time difference information is used to indicate a difference between a time at which the third device transmits the first reference signal and a time at which the fourth device transmits the second reference signal, and the fourth time difference information is used to indicate a difference between a time at which the fourth device transmits the second reference signal and a time at which the fifth device transmits the third reference signal; the second frequency difference information, the fourth frequency difference information, the second time difference information and the fourth time difference information are used to determine position information of the second device and motion speed information of the second device.

[0117] Optionally, the third information is used to request parameters related to determining the location information of the second device from the fourth device.

[0118] Optionally, the fourth device may simultaneously send at least two of the second frequency difference information, the fourth frequency difference information, the second time difference information, and the fourth time difference information, or send the second frequency difference information, the fourth frequency difference information, the second time difference information, and the fourth time difference information separately.

[0119] Specifically, the beneficial effects of the sixth aspect are described in the fifth aspect.

[0120] In a seventh aspect, an information processing method is provided, the method being applicable to a first device, comprising:

[0121] The fifth frequency difference information is obtained, which is used to indicate the difference between the frequency at which the second device receives the first reference signal from the third device and the frequency at which the second device receives the second reference signal from the third device.

[0122] Obtain the sixth frequency difference information, which is used to indicate the frequency difference between the frequency at which the second device receives the third reference signal from the third device and the frequency at which the second device receives the second reference signal from the third device. The first reference signal, the second reference signal, and the third reference signal are reference signals sent by the third device at different locations.

[0123] Obtain the motion speed information of the second device;

[0124] Obtain the motion speed information of the third device;

[0125] The position information of the third device is determined based on the fifth frequency difference information, the sixth frequency difference information, the movement speed information of the second device, and the movement speed information of the third device.

[0126] In some possible implementations, the motion speed information of the second device includes first motion speed information when the second device receives a first reference signal from the third device, second motion speed information when the second device receives the second reference signal, and third motion speed information when the second device receives a third reference signal.

[0127] Optionally, the first motion speed information is used to indicate the magnitude and / or direction of the motion speed when the second device receives the first reference signal.

[0128] Optionally, the second motion speed information is used to indicate the magnitude and / or direction of the motion speed when the second device receives the second reference signal.

[0129] Optionally, the third motion speed information is used to indicate a magnitude of the motion speed and / or a direction of the motion speed when the second device receives the third reference signal.

[0130] Optionally, the method further comprises: obtaining first timestamp information corresponding to the first motion speed information. Optionally, the first timestamp information is used to indicate a first time point when the second device receives the first reference signal.

[0131] Optionally, the method further comprises: obtaining second timestamp information corresponding to the second motion speed information. Optionally, the second timestamp information is used to indicate a second time point when the second device receives the second reference signal.

[0132] Optionally, the method further comprises: obtaining third timestamp information corresponding to the third motion speed information. Optionally, the third timestamp information is used to indicate a third time point when the second device receives the third reference signal.

[0133] In some possible implementation manners, the motion speed information of the third device comprises fourth motion speed information when the third device transmits the first reference signal, fifth motion speed information when the third device transmits the second reference signal, and sixth motion speed information when the third device transmits the third reference signal.

[0134] Optionally, the fourth motion speed information is used to indicate a magnitude of the motion speed and / or a direction of the motion speed when the third device transmits the first reference signal.

[0135] Optionally, the fifth motion speed information is used to indicate a magnitude of the motion speed and / or a direction of the motion speed when the fourth device transmits the second reference signal.

[0136] Optionally, the sixth motion speed information is used to indicate a magnitude of the motion speed and / or a direction of the motion speed when the fifth device transmits the third reference signal.

[0137] Optionally, the first device can determine that the first motion speed information corresponds to the fourth motion speed information according to the first timestamp information.

[0138] Optionally, the first device can determine that the second motion speed information corresponds to the fifth motion speed information according to the second timestamp information.

[0139] Optionally, the first device can determine that the third motion speed information corresponds to the sixth motion speed information according to the third timestamp information.

[0140] In some possible implementation manners, the position information of the second device is used to indicate a coordinate of the second device relative to the first device.

[0141] In some possible implementation manners, the second device is in a relative motion state with the first device.

[0142] In some possible implementation manners, the first device and the third device are the same terminal device, and the second device is another terminal device. Optionally, the method further includes: sending fourth information to the second device, the fourth information being used to indicate that the first device needs to determine the position information of the third device; and the obtaining the fifth frequency difference information includes: receiving the fifth frequency difference information from the second device. Optionally, the obtaining the sixth frequency difference information includes: receiving the sixth frequency difference information from the second device. Optionally, the obtaining the motion speed information of the second device includes: receiving the motion speed information of the second device from the second device.

[0143] In some possible implementation manners, the first device and the second device are the same terminal device, and the third device is another terminal device. Optionally, before the obtaining the fifth frequency difference information, the method further includes: receiving fifth information from the third device, the fifth information being used to indicate that the first device determines the position information of the third device.

[0144] In some possible implementation manners, the first device and the second device are the same terminal device, and the third device is another terminal device. The obtaining the motion information of the third device includes: receiving the motion information of the third device from the third device.

[0145] In an eighth aspect, a method for information processing is provided, and the method is applied to a second device and includes:

[0146] receiving fourth information, the fourth information being used to indicate that a first device determines position information of a third device;

[0147] sending fifth frequency difference information, sixth frequency difference information and motion speed information of the second device, the fifth frequency difference information being used to indicate a difference between a frequency at which the second device receives a first reference signal of the third device and a frequency at which the second device receives a second reference signal of the third device, the sixth frequency difference information being used to indicate a difference between a frequency at which the second device receives a third reference signal of the third device and the frequency at which the second device receives the second reference signal of the third device, the first reference signal, the second reference signal and the third reference signal being reference signals sent by the third device at different positions; and the fifth frequency difference information, the sixth frequency difference information and the motion speed information of the second device being used to determine the position information of the third device.

[0148] In a ninth aspect, an apparatus is provided, which is included in an electronic device, and the apparatus has functions to implement the device behaviors of the above aspects and possible implementation manners of the above aspects. The functions can be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the above functions. For example, a determining module or unit, a transceiving module or unit, etc.

[0149] Optionally, the apparatus can be the first device, the second device, the third device, the fourth device, or the fifth device.

[0150] In a tenth aspect, an apparatus is provided, which includes a processor, and the processor is coupled with a memory, and the memory is configured to store computer programs or instructions, and the processor is configured to execute the computer programs or instructions stored in the memory, so that the methods in the above aspects and possible implementation manners of the above aspects are executed.

[0151] For example, the processor is configured to execute the computer programs or instructions stored in the memory, so that the apparatus executes the methods in the above aspects and possible implementation manners of the above aspects.

[0152] Optionally, the processor included in the apparatus is one or more.

[0153] Optionally, the apparatus can further include a memory coupled with the processor.

[0154] Optionally, the memory included in the apparatus can be one or more.

[0155] Optionally, the memory can be integrated with the processor, or separately arranged.

[0156] Optionally, the apparatus can further include a transceiver.

[0157] Optionally, the apparatus can be the first device, the second device, the third device, the fourth device, or the fifth device.

[0158] In an eleventh aspect, an electronic device is provided, which includes one or more processors, a memory, a plurality of application programs, and one or more computer programs. The one or more computer programs are stored in the memory, and the one or more computer programs include instructions. When the instructions are executed by the electronic device, the electronic device executes the method of information processing in the above aspects or any possible implementation of the aspects, or the method of information processing introduced in any embodiment of the present application.

[0159] Optionally, the electronic device can further include a touch display screen and / or a camera, wherein the touch display screen includes a touch-sensitive surface and a display.

[0160] In a twelfth aspect, the present application provides a computer readable storage medium, including computer instructions, when the computer instructions are run on an electronic device, causing the electronic device to execute the method of information processing of any possible implementation of the aspects above or the aspects, or the method of information processing introduced in any embodiment of the present application.

[0161] In a thirteenth aspect, the present application provides a computer program product, when the computer program product is run on an electronic device, causing the electronic device to execute the method of information processing of any possible implementation of the aspects above or the aspects, or the method of information processing introduced in any embodiment of the present application.

[0162] In a fourteenth aspect, the present application provides an apparatus, including units for executing the method introduced in any embodiment of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0163] Figure 1 is a schematic diagram of an application scenario provided by an embodiment of the present application.

[0164] Figure 2 is a schematic diagram of another application scenario provided by an embodiment of the present application.

[0165] Figure 3 is a schematic diagram of a positioning principle provided by an embodiment of the present application.

[0166] Figure 4 is a schematic diagram of a method of information processing provided by an embodiment of the present application.

[0167] Figure 5 is a schematic diagram of another positioning principle provided by an embodiment of the present application.

[0168] Figure 6 is a schematic diagram of another method of information processing provided by an embodiment of the present application.

[0169] Figure 7 is a schematic diagram of still another method of information processing provided by an embodiment of the present application.

[0170] Figure 8 is a schematic diagram of still another positioning principle provided by an embodiment of the present application.

[0171] Figure 9 is a schematic diagram of still another method of information processing provided by an embodiment of the present application.

[0172] Figure 10 is a schematic diagram of still another method of information processing provided by an embodiment of the present application.

[0173] Figure 11 is a schematic diagram of still another method of information processing provided by an embodiment of the present application.

[0174] Figure 12 is another information processing method schematic diagram provided by an embodiment of the application.

[0175] Figure 13 is another positioning principle schematic diagram provided by an embodiment of the application.

[0176] Figure 14 is another information processing method schematic diagram provided by an embodiment of the application.

[0177] Figure 15 is another information processing method schematic diagram provided by an embodiment of the application.

[0178] Figure 16 is a schematic block diagram of a communication device provided by an embodiment of the application. DETAILED DESCRIPTION

[0179] The technical solutions in the embodiments of the application will be described below with reference to the drawings in the embodiments of the application.

[0180] The technical solutions in the embodiments of the application can be applied to various communication systems, for example, a global system for mobile communications (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) system, a general packet radio service (GPRS), a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD), a universal mobile telecommunications system (UMTS), a worldwide interoperability for microwave access (WiMAX) communication system, a future 5th generation (5G) system or a new radio (NR), and the like.

[0181] Figure 1 An application scenario schematic diagram applied to an embodiment of the application is shown. As shown in FIG. 1, the application scenario schematic diagram applied to an embodiment of the application includes a terminal device 1 and a network device 2. Figure 1As shown, the system includes: a terminal device 110, an access network device 120 and a core network device 130.

[0182] The terminal device 110 is also referred to as a user equipment (UE), a mobile station (MS), a mobile terminal (MT), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile terminal, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user communication apparatus, etc.

[0183] The terminal device 110 can be a device that provides voice / data connectivity to a user, such as a handheld device with wireless connection function, a vehicle-mounted device, etc. Currently, some examples of terminal devices include: a mobile phone, a tablet computer, a notebook computer, a palm computer, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolved public land mobile network (PLMN), etc. The present application is not limited thereto.

[0184] The access network device 120, which can also be referred to as a radio access network (RAN) or a radio access network device, can be a transmission reception point (TRP), and can also be an evolved NodeB (eNB or eNodeB) in an LTE system, and can also be a home evolved NodeB (home eNB) or a home NodeB (HNB), a baseband unit (BBU), and can also be a radio controller in a cloud radio access network (CRAN) scenario, or the access network device 120 can be a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in a 5G network or a network device in a future evolved PLMN network, and can also be an access point (AP) in a WLAN, and can also be a gNB in an NR system, and the above-mentioned access network device 120 can also be a city base station, a micro base station, a pico base station, a femto base station, and the like, and the present application does not make any limitation in this regard.

[0185] In some embodiments, Figure 1 The access network device 120 in the above-mentioned system can be replaced by a roadside unit (RSU) in V2I communication, and the terminal device 110 can be an on board unit (OBU).

[0186] In some embodiments, the access network device 120 can also be a road side unit (RSU), and the terminal device 110 can be an on board unit (OBU), that is, the method for determining orientation information provided by the embodiments of the present application can be used in a vehicle network.

[0187] The core network device 130 is configured to manage one or more access network devices 120. For example, the core network device 130 can include at least one of a core network access and mobility management function (AMF), a user plane function (UPF) network element, a session management function (SMF) network element, a data network (DN), a unified data repository (UDR) network element, or a location management function (LMF) unit or a unified data management (UDM) network element. The LMF unit is configured to manage the location of the terminal device 110, for example, to determine the location information of the terminal device 110, or to determine the location information and the motion speed information of the terminal device 110, or to assist in determining the location information of the terminal device 110, or to assist in determining the location information and the motion speed information of the terminal device 110, and the like. Optionally, the LMF unit in the embodiment of the application can also be another core network element, and the embodiment of the application is not limited.

[0188] Figure 2 is another application scenario provided by the embodiment of the application. The scenario can include a plurality of terminal devices, for example, the terminal device 210 and the terminal device 220 in Figure 2 The terminal device 210 and the terminal device 220 can directly communicate with each other. The link through which the terminal device 210 and the terminal device 220 transmit data is called a sidelink. For example, the terminal device 210 can transmit data to the terminal device 220 through the sidelink, and the terminal device 220 can transmit data to the terminal device 210 through the sidelink. The sidelink is generally used in a scenario in which devices can directly communicate with each other, such as vehicle to everything (V2X) or device to device (D2D). The V2X communication can be regarded as a special case of the D2D communication.

[0189] New radio (NR) access technology is the current mainstream wireless communication technology, which can support lower delay and higher reliability V2X communication according to the V2X service characteristics and new service requirements. V2X is the basis and key technology to realize intelligent vehicles, automatic driving and intelligent transportation system. V2X can include vehicle to network (V2N), vehicle to vehicle (V2V), vehicle to infrastructure (V2I), vehicle to pedestrian (V2P), etc. V2N communication is the most widely used form of vehicle networking at present, and its main function is to enable vehicles to connect to cloud servers through mobile networks, and use the navigation, entertainment, anti-theft and other application functions provided by the cloud server. V2V communication can be used for information exchange and warning between vehicles, and the most typical application is to use it for vehicle-to-vehicle collision avoidance safety systems. Through V2I communication, vehicles can communicate with roads and even other infrastructure, such as traffic lights, roadblocks, etc., and obtain road management information such as traffic light signal timing. For example, in V2I communication, the terminal device 210 can be an on board unit (OBU), and the terminal device 220 can be an RSU. V2P communication can be used for safety warning to pedestrians or non-motor vehicles on the road.

[0190] The terminal device 210 or the type of the terminal device 210 is the same as or different from the type of the terminal device 110 in Figure 1

[0191] The terminal device 110 in Figure 1 The terminal device 110 in Figure 2 The terminal device 210 and the terminal device 220 in

[0192] It should be understood that Figure 1 and Figure 2 In Figure 1 The terminal device 110, the access network device 120 and the core network device 130 are schematically shown, Figure 2 The terminal device 210 and the terminal device 220 are schematically shown, but this should not constitute any limitation on the present application, and the Figure 1 and Figure 2 May also include a greater or lesser number of devices, which is not limited in the present application.

[0193] The numbers of the devices are omitted below for the convenience of description, for example, the terminal device can be Figure 1 The terminal device 110 in Figure 2 The terminal device 210 or the terminal device 220 in ​

[0194] The positioning principle is described below, taking Figure 1 for example, the terminal device can send a reference signal in the process of movement, the access network device can receive the reference signal, the access network device measures the Doppler frequency offset of the received reference signal, the access network device sends the Doppler frequency offset to the core network device, the terminal device can send the movement speed and the movement direction to the core network device, and the core network device can determine the angle of the terminal device relative to the access network device according to the movement speed, the movement direction and the Doppler frequency offset of the terminal device, so as to realize the positioning of the terminal device.

[0195] As shown in Figure 3 , after the access network device receives the reference signal sent by the terminal device, the Doppler frequency offset of the received reference signal can be determined as f d , where the movement speed of the terminal device reported by the terminal device is v, and the movement direction of the terminal device is φ UE , where the frequency of the reference signal sent by the terminal device is f c , and

[0196]

[0197] The core network device can know the frequency f c of the reference signal sent by the terminal device. Therefore, f c , v, φ UE , and f d in the above formula are known quantities, and the core network device can determine β as shown in Figure 3 , that is, the core network device can determine the angle of the terminal device relative to the access network device, that is, in this scenario, the core network device can determine the angle of the terminal device relative to the access network device, but cannot determine the specific position of the terminal device.

[0198] In addition, in the case that the terminal device and the access network device are not frequency-synchronized, the Doppler frequency offset f d determined by the access network device will be inaccurate, so if the inaccurate f d is used to determine β, the determined β will also be inaccurate.

[0199] For example, the clock frequency of the terminal device sending the reference signal is f c , the Doppler frequency offset caused by the movement of the terminal device is f d in terms of the clock frequency of the terminal device, and therefore the frequency of the received reference signal in terms of the clock frequency of the terminal device should be f c +f dHowever, if the clock frequency of the terminal device is not synchronized with the clock frequency of the access network device, the frequency of the reference signal received by the access network device is not f c +f d but f c +f d -f t , where f t is the clock frequency of the access network device, f c -f t is the difference between the clock frequencies of the terminal device and the access network device, that is, due to the unsynchronized clock frequencies between the terminal device and the access network device, the Doppler frequency shift is not f d but f c +f d -f t If β is determined using f d , the determined β will be inaccurate. Even if the difference f c -f t between the clock frequencies of the terminal device and the access network device is a known quantity, if β is determined using f c +f d -f t , the actual frequency of the terminal device can not be f c , or the actual frequency of the access network device is not f t , which will cause f c +f d -f t to still not be the real Doppler frequency shift value, and thus even if β is determined using f c +f d -f t , the determined β will be inaccurate.

[0200] Therefore, in the embodiments of the present application, the first device can determine the position information of the second device by the first frequency difference information for indicating the difference between the frequency at which the second device receives the first reference signal of the third device and the frequency at which the second device receives the second reference signal of the fourth device, and the second frequency difference information for indicating the difference between the frequency at which the fourth device transmits the second reference signal and the frequency at which the third device transmits the first reference signal; that is, the first frequency difference information is the frequency difference between the reference signals of the two devices received by the second device, and if the clock frequency of the second device is inconsistent with the actual frequency, the inconsistent value can be offset by the frequency difference, so that in the process of determining the position information of the second device, the problem of inconsistency between the clock frequency of the second device and the actual frequency can be offset by the first frequency difference information, and the frequency difference between the reference signals of the two devices received by the second device is also related to the frequency difference between the reference signals transmitted by the two devices, so that the influence of the frequency difference between the reference signals transmitted by the two devices can be offset by the second frequency difference, thereby improving the accuracy of determining the position information of the second device.

[0201] The method 400 for processing information provided by the embodiments of the present application will be described below in combination with the embodiments shown in the drawings. Figure 4 The method 400 is described taking the first device as the LMF unit, the second device as the terminal device, the third device as the first access network device, the fourth device as the second access network device, and the fifth device as the third access network device as an example, as shown in Figure 4 The method 400 includes the following steps.

[0202] S401, the LMF unit transmits third information to the second access network device, and the second access network device receives the third information from the LMF unit.

[0203] Optionally, the LMF unit can also be other core network devices.

[0204] Optionally, the third information is used to request the frequency difference information from the second access network device.

[0205] Optionally, the third information can include configuration information of the first access network device, configuration information of the second access network device, or configuration information of the third access network device.

[0206] Optionally, the configuration information of the first access network device is used to configure an identity of the first access network device and / or first time information of measuring the frequency difference value information. Optionally, the first time information is used to indicate a start time and / or a measurement period of the measurement by the second access network device; the second access network device can measure the frequency difference value between the frequency at which the second access network device transmits the second reference signal and the frequency at which the first access network device transmits the first reference signal at the start time indicated by the first time information; and / or, the second access network device can measure the frequency difference value between the frequency at which the second access network device transmits the second reference signal and the frequency at which the first access network device transmits the first reference signal according to the measurement period indicated by the first time information.

[0207] Optionally, the configuration information of the third access network device is used to configure an identity of the third access network device and / or third time information of measuring the frequency difference value. Optionally, the third time information is used to indicate a start time and / or a third measurement period of the measurement by the second access network device; the second access network device can measure the frequency difference value between the frequency at which the second access network device transmits the second reference signal and the frequency at which the third access network device transmits the third reference signal at the start time indicated by the third time information; and / or, the second access network device can measure the frequency difference value between the frequency at which the second access network device transmits the second reference signal and the frequency at which the third access network device transmits the third reference signal according to the measurement period indicated by the third time information.

[0208] Optionally, the third information includes a second instruction used to instruct the second access network device to transmit the second reference signal at the second frequency. Optionally, the second instruction can further indicate second time information of transmitting the second reference signal by the second access network device. Optionally, the second time information is used to indicate a start time and / or a transmission period of transmitting the second reference signal by the second access network device.

[0209] It can be understood that the third information can also not include the second instruction, and the second access network device periodically transmits the second reference signal at the second frequency.

[0210] Optionally, the second access network device can be an access network device serving the terminal device.

[0211] Optionally, the LMF unit can actively trigger the execution of S401, or the terminal device can send a positioning request message to the LMF unit, and the LMF unit triggers the execution of S401 after receiving the positioning request message.

[0212] It should be noted that S401 is an optional step, i.e., the method 400 can not include S401, and the second access network device can actively report the frequency difference value information, such as actively reporting the second frequency difference value information and the fourth frequency difference value information described below.

[0213] S402, the LMF unit sends second information to the terminal device, and the terminal device receives the second information.

[0214] Optionally, the second information is used to indicate to the terminal device that the LMF unit needs to measure the location information of the terminal device.

[0215] Optionally, the second information includes assistance measurement information, and the assistance measurement information includes at least one of an identifier of the first access network device, an identifier of the second access network device, an identifier of the third access network device, or configuration information of a reference signal. The configuration information of the reference signal is used to indicate at least one of a first frequency at which the first access network device transmits the first reference signal, a second frequency at which the second access network device transmits the second reference signal, a third frequency at which the third access network device transmits the third reference signal, fourth time information at which the first access network device transmits the first reference signal, second time information at which the second access network device transmits the second reference signal, or fifth time information at which the third access network device transmits the third reference signal.

[0216] Optionally, the LMF unit can actively trigger the execution of S402, or the terminal device can send a positioning request message to the LMF unit, and the LMF unit triggers the execution of S402 after receiving the positioning request message.

[0217] It can be understood that the order of S401 and S402 is not limited, and S401 can be performed before or after S402 or at the same time.

[0218] S403, the LMF unit sends a first instruction to the first access network device, and the first access network device receives the first instruction. The first instruction is used to instruct the first access network device to transmit the first reference signal at the first frequency.

[0219] Optionally, the first instruction is also used to instruct the first access network device to transmit the fourth time information of the first reference signal, so that the first access network device can transmit the first reference signal at the start time indicated by the fourth time information. Optionally, if the first time information exists, the start time indicated by the fourth time information is the same as the start time of the measurement indicated by the first time information, that is, the start time of the first access network device transmitting the first reference signal is the same as the start time of the second access network device measuring the difference. The difference measured by the second access network device is the difference between the frequency at which the second access network device transmits the second reference signal and the frequency at which the first access network device transmits the first reference signal.

[0220] It should be noted that S403 is an optional step, and the first access network device can periodically transmit the first reference signal at the first frequency without the first instruction triggering the transmission of the first reference signal at the first frequency.

[0221] S404, the LMF sends a third instruction to the third access network device, and the third access network device receives the third instruction, where the third instruction is used to instruct the third access network device to send a third reference signal at a third frequency.

[0222] Optionally, the third instruction is further used to instruct the third access network device to send fifth time information of the third reference signal, so that the third access network device can send the third reference signal at a start time indicated by the fifth time information. Optionally, if the third time information exists, the start time indicated by the fifth time information is the same as the start time indicated by the third time information, that is, the start time at which the third access network device sends the third reference signal is the same as the start time at which the second access network device measures the difference, where the difference measured by the second access network device is the difference between the frequency at which the second access network device sends the second reference signal and the frequency at which the third access network device sends the third reference signal.

[0223] It should be noted that S404 is an optional step, and the third access network device can periodically send the third reference signal at the third frequency without the third instruction triggering the third access network device to send the third reference signal at the third frequency.

[0224] Optionally, the order between S404 and S403 is not limited. Also, the order of any one of S403 and S404 and any one of S401 and S402 is not limited.

[0225] S405, the first access network device sends a first reference signal at a first frequency.

[0226] Optionally, the first access network device can send the first reference signal at the first frequency based on the first instruction.

[0227] Optionally, the first access network device can periodically send the first reference signal at the first frequency.

[0228] Optionally, if the first instruction is used to instruct the first access network device to send fourth time information of the first reference signal, the first access network device sends the first reference signal at the first frequency according to a start time and / or a sending period indicated by the fourth time information.

[0229] It should be noted that theoretically, the first access network device sends the first reference signal at the first frequency, but the actual frequency at which the first access network device sends the first reference signal may not be the first frequency due to the limitation of the hardware condition of the first access network device. That is, the first frequency is the theoretical frequency at which the first access network device sends the first reference signal, which may not be the actual frequency. Of course, the hardware condition of the first access network device may be good, and the theoretical frequency is equal to the actual frequency, that is, the actual frequency at which the first access network device sends the first reference signal may also be the first frequency.

[0230] S406, the second access network device transmits the second reference signal at the second frequency.

[0231] Optionally, the second access network device can transmit the second reference signal at the second frequency based on the second instruction.

[0232] Optionally, the second access network device can periodically transmit the second reference signal at the second frequency.

[0233] Optionally, if the second instruction is used to indicate second time information of the second access network device transmitting the second reference signal, the second access network device transmits the second reference signal at the second frequency according to the start time and / or the transmission period indicated by the second time information.

[0234] It should be noted that theoretically, the second access network device transmits the second reference signal at the second frequency, but the actual frequency of the second access network device transmitting the second reference signal may not be the second frequency due to the limitation of the hardware condition of the second access network device. That is, the second frequency is the theoretical frequency of the second access network device transmitting the second reference signal, which may not be the actual frequency. Of course, the hardware condition of the second access network device may be good, and the theoretical frequency is equal to the actual frequency, that is, the actual frequency of the second access network device transmitting the second reference signal may also be the second frequency.

[0235] S407, the third access network device transmits the third reference signal at the third frequency.

[0236] Optionally, the third access network device can transmit the third reference signal at the third frequency based on the third instruction.

[0237] Optionally, the third access network device can periodically transmit the third reference signal at the third frequency.

[0238] Optionally, if the third instruction is used to indicate fifth time information of the third access network device transmitting the third reference signal, the first access network device transmits the third reference signal at the third frequency according to the start time and / or the transmission period indicated by the fifth time information.

[0239] It should be noted that theoretically, the third access network device transmits the third reference signal at the third frequency, but the actual frequency of the third access network device transmitting the third reference signal may not be the third frequency due to the limitation of the hardware condition of the third access network device. That is, the third frequency is the theoretical frequency of the third access network device transmitting the third reference signal, which may not be the actual frequency. Of course, the hardware condition of the third access network device may be good, and the theoretical frequency is equal to the actual frequency, that is, the actual frequency of the third access network device transmitting the third reference signal may also be the third frequency.

[0240] It should be noted that the order of S405, S406 and S407 is not limited in any way.

[0241] S408, the second access network device determines the difference between the frequency at which the second access network device transmits the second reference signal and the frequency at which the first access network device transmits the first reference signal.

[0242] Optionally, the second access network device can use a frequency mixer to determine the difference between the frequency at which the second access network device transmits the second reference signal and the frequency at which the first access network device transmits the first reference signal. Optionally, one input of the frequency mixer is the second reference signal generated locally at the second frequency, another input of the frequency mixer is the received first reference signal of the first access network device, and the output of the frequency mixer is a signal of the difference between the frequency at which the second access network device transmits the second reference signal and the frequency at which the first access network device transmits the first reference signal. Thus, the frequency of the signal obtained by measuring the output of the frequency mixer is the difference between the frequency at which the second access network device transmits the second reference signal and the frequency at which the first access network device transmits the first reference signal.

[0243] It can be understood that the difference in S408 is the difference between the frequency at which the second access network device transmits the second reference signal and the frequency at which the first access network device transmits the first reference signal actually measured by the second access network device.

[0244] It should be noted that the LMF unit can configure the first access network device to transmit the first reference signal at the first frequency through the first instruction, but due to the limitations of the hardware conditions of the first access network device, etc., the actual frequency at which the first access network device transmits the first reference signal may not be the first frequency. The LMF unit can configure the second access network device to transmit the second reference signal at the second frequency through the second instruction, but due to the limitations of the hardware conditions of the second access network device, etc., the actual frequency at which the second access network device transmits the second reference signal may not be the second frequency. Therefore, in S408, the second access network device can measure the difference between the frequency at which the second access network device transmits the second reference signal and the frequency at which the first access network device transmits the first reference signal, but the second access network device may not be able to determine the actual frequency at which the first access network device transmits the first reference signal, and the second access network device may not be able to determine the actual frequency at which the second access network device transmits the second reference signal.

[0245] S409, the second access network device sends second frequency difference information to the LMF unit, the second frequency difference information being used to indicate the difference between the frequency at which the second access network device transmits the second reference signal and the frequency at which the first access network device transmits the first reference signal.

[0246] S410, the second access network device determines a difference between the frequency at which the second access network device transmits the second reference signal and the frequency at which the third access network device transmits the third reference signal.

[0247] Optionally, the second access network device can determine the difference between the frequency at which the second access network device transmits the second reference signal and the frequency at which the third access network device transmits the third reference signal by using a frequency mixer. Optionally, one input of the frequency mixer is the second reference signal with the second frequency generated locally, another input of the frequency mixer is the third reference signal received from the third access network device, and the output of the frequency mixer is a signal with the difference between the frequency at which the second access network device transmits the second reference signal and the frequency at which the third access network device transmits the third reference signal. Thus, the frequency of the signal obtained by measuring the output of the frequency mixer is the difference between the frequency at which the second access network device transmits the second reference signal and the frequency at which the third access network device transmits the third reference signal.

[0248] It can be understood that the difference between the frequency at which the second access network device transmits the second reference signal and the frequency at which the third access network device transmits the third reference signal determined by the second access network device is the difference between the frequency at which the second access network device transmits the second reference signal and the frequency at which the third access network device transmits the third reference signal actually measured by the second access network device.

[0249] It should be noted that the LMF unit can configure the third access network device to transmit the third reference signal at the third frequency through the third instruction, but due to the limitation of the hardware condition of the third access network device and the like, the actual frequency at which the third access network device transmits the third reference signal may not be the third frequency. The LMF unit can configure the second access network device to transmit the second reference signal at the second frequency through the second instruction, but due to the limitation of the hardware condition of the second access network device and the like, the actual frequency at which the second access network device transmits the second reference signal may not be the second frequency. Therefore, in S410, the second access network device can measure the difference between the frequency at which the second access network device transmits the second reference signal and the frequency at which the third access network device transmits the third reference signal, but the second access network device may not be able to determine the actual frequency at which the third access network device transmits the third reference signal, and the second access network device may not be able to determine the actual frequency at which the second access network device transmits the second reference signal.

[0250] S411, the second access network device transmits fourth frequency difference information to the LMF unit, the fourth frequency difference information being used to indicate the difference between the frequency at which the second access network device transmits the second reference signal and the frequency at which the third access network device transmits the third reference signal.

[0251] It should be noted that the second access network device can execute S409 and S411 simultaneously, or can execute S409 and S411 respectively.

[0252] Optionally, in response to the third information, the second access network device can perform S409 and / or S411. That is, the second access network device can carry the second frequency difference value information and / or the fourth frequency difference value information in the response message of the third information.

[0253] S412, the terminal device determines a difference between the frequency offset of receiving the first reference signal in S405 and the frequency offset of receiving the second reference signal in S406.

[0254] Optionally, the terminal device can listen to the first reference signal based on the first frequency at which the first access network device transmits the first reference signal indicated by the assistance measurement information, so as to determine the frequency offset of receiving the first reference signal. Optionally, the frequency offset of receiving the first reference signal is related to the frequency at which the first access network device transmits the first reference signal.

[0255] Optionally, the terminal device can listen to the second reference signal based on the second frequency at which the second access network device transmits the second reference signal indicated by the assistance measurement information, so as to determine the frequency offset of receiving the second reference signal. Optionally, the frequency offset of receiving the second reference signal is related to the frequency at which the second access network device transmits the second reference signal.

[0256] Optionally, the terminal device can determine the frequency offset of the first reference signal through a frequency mixer, one input of the frequency mixer being the first reference signal of the first frequency generated locally, the other input of the frequency mixer being the received first reference signal, and the output of the frequency mixer being a signal of the frequency offset of the first reference signal. Thus, the frequency offset of the first reference signal can be obtained by measuring the frequency of the signal output by the frequency mixer.

[0257] Optionally, the terminal device can determine the frequency offset of the second reference signal through a frequency mixer, one input of the frequency mixer being the second reference signal of the second frequency generated locally, the other input of the frequency mixer being the received second reference signal, and the output of the frequency mixer being a signal of the frequency offset of the second reference signal. Thus, the frequency offset of the second reference signal can be obtained by measuring the frequency of the signal output by the frequency mixer.

[0258] It should be noted that S412 is after S405 and S406, and S412 has no limitation on the order of other steps.

[0259] S413, the terminal device sends the first frequency difference value information to the LMF unit, the first frequency difference value information being used to indicate the difference between the frequency offset of receiving the first reference signal in S405 and the frequency offset of receiving the second reference signal in S406.

[0260] Alternatively to S413, the terminal device can send, to the LMF unit, the frequency offset of receiving the first reference signal and the frequency offset of receiving the second reference signal, so that the LMF unit can determine the difference between the frequency offset of receiving the first reference signal and the frequency offset of receiving the second reference signal.

[0261] Optionally, the first frequency difference information is used to indicate the difference between the frequency of receiving the first reference signal in S405 and the frequency of receiving the second reference signal in S406. The difference between the frequency of receiving the first reference signal in S405 and the frequency of receiving the second reference signal in S406 is measured by the terminal device.

[0262] S414, the terminal device determines the difference between the frequency offset of receiving the third reference signal in S407 and the frequency offset of receiving the second reference signal in S406.

[0263] Optionally, the terminal device can listen to the third reference signal based on the third frequency of the third reference signal sent by the third access network device indicated by the assistance measurement information, so as to determine the frequency offset of receiving the third reference signal. Optionally, the frequency offset of receiving the third reference signal is related to the frequency of the third reference signal sent by the third access network device.

[0264] Optionally, the terminal device can determine the frequency offset of the third reference signal through a frequency mixer, one input of the frequency mixer is the third reference signal of the third frequency generated locally, the other input of the frequency mixer is the received third reference signal, and the output of the frequency mixer is a signal with the frequency offset of the frequency of the third reference signal. Thus, the frequency offset of the third reference signal can be obtained by measuring the frequency of the signal output by the frequency mixer.

[0265] It should be noted that S414 is after S406 and S407, and S414 has no limitation on the order of other steps.

[0266] S415, the terminal device sends, to the LMF unit, third frequency difference information, the third frequency difference information being used to indicate the difference between the frequency offset of receiving the third reference signal in S407 and the frequency offset of receiving the second reference signal in S406.

[0267] Alternatively to S415, the terminal device can send, to the LMF unit, the frequency offset of receiving the third reference signal and the frequency offset of receiving the second reference signal, so that the LMF unit can determine the difference between the frequency offset of receiving the third reference signal and the frequency offset of receiving the second reference signal.

[0268] Optionally, the third frequency difference information is used to indicate a difference between a frequency of the third reference signal received by the terminal device in S407 and a frequency of the second reference signal received by the terminal device in S406. The difference between the frequency of the third reference signal received by the terminal device in S407 and the frequency of the second reference signal received by the terminal device in S406 is measured by the terminal device.

[0269] S416, the terminal device sends the motion speed information of the terminal device to the LMF unit.

[0270] Optionally, the motion speed information of the terminal device is used to indicate a size of the motion speed of the terminal device and / or a direction of the motion speed of the terminal device.

[0271] Optionally, the terminal device can simultaneously perform S413, S415 and S416, or can separately perform S413, S415 and S416.

[0272] Optionally, in response to the second information in S402, the terminal device can send the first frequency difference information, the third frequency difference information and the motion speed information of the terminal device to the LMF unit.

[0273] S417, the LMF unit determines the position information of the terminal device according to at least one of the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information or the motion speed information of the terminal device.

[0274] Optionally, S417 includes that the LMF unit can obtain the position information of the terminal device by performing mathematical operations on the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information and the motion speed information of the terminal device.

[0275] Optionally, S417 includes that the LMF unit determines the position information of the terminal device according to at least one of the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information, the motion speed information of the terminal device, a wavelength of the first reference signal sent by the first access network device, a wavelength of the second reference signal sent by the second access network device or a wavelength of the third reference signal sent by the third access network device.

[0276] Optionally, the wavelength of the first reference signal sent by the first access network device is related to the first frequency, for example, the wavelength of the first reference signal sent by the first access network device is equal to the speed of light divided by the first frequency. That is, the first frequency is configured by the LMF unit, and therefore, the LMF unit can determine the wavelength of the first reference signal sent by the first access network device according to the speed of light and the first frequency.

[0277] Optionally, the wavelength of the second reference signal sent by the second access network device is related to the second frequency, for example, the wavelength of the second reference signal sent by the second access network device is equal to the speed of light divided by the second frequency. That is, the second frequency is configured for the LMF unit, and therefore, the LMF unit can determine the wavelength of the second reference signal sent by the second access network device according to the speed of light and the second frequency.

[0278] Optionally, the wavelength of the third reference signal sent by the third access network device is related to the third frequency, for example, the wavelength of the third reference signal sent by the third access network device is equal to the speed of light divided by the third frequency. That is, the third frequency is configured for the LMF unit, and therefore, the LMF unit can determine the wavelength of the third reference signal sent by the third access network device according to the speed of light and the third frequency.

[0279] Optionally, the LMF unit determines the position information of the terminal device according to at least one of the first frequency difference value information, the second frequency difference value information, the third frequency difference value information, the fourth frequency difference value information, the motion speed information of the terminal device, the wavelength of the first reference signal sent by the first access network device, the wavelength of the second reference signal sent by the second access network device, or the wavelength of the third reference signal sent by the third access network device, including: the LMF unit determines the position information of the terminal device according to at least one of the first frequency difference value information, the second frequency difference value information, the third frequency difference value information, the fourth frequency difference value information, the motion speed information of the terminal device, the wavelength of the first reference signal sent by the first access network device, the wavelength of the second reference signal sent by the second access network device, the wavelength of the third reference signal sent by the third access network device, the coordinates of the first access network device, the coordinates of the second access network device, or the coordinates of the third access network device.

[0280] Optionally, the LMF unit can know the coordinates of the first access network device, the coordinates of the second access network device, or the coordinates of the third access network device in advance. For example, the first access network device can report the coordinates of the first access network device to the LMF unit, for another example, the second access network device can report the coordinates of the second access network device to the LMF unit, and for another example, the third access network device can report the coordinates of the third access network device to the LMF unit.

[0281] Optionally, S417 includes: the LMF unit determines the position information of the terminal device according to at least one of the first frequency difference value information, the second frequency difference value information, the third frequency difference value information, the fourth frequency difference value information, the motion speed information of the terminal device, the first frequency, the second frequency, or the third frequency.

[0282] Optionally, the LMF unit determines the location information of the terminal device based on at least one of the following: first frequency difference information, second frequency difference information, third frequency difference information, fourth frequency difference information, movement speed information of the terminal device, first frequency, second frequency, or third frequency. This includes: the LMF unit determines the location information of the terminal device based on at least one of the following: first frequency difference information, second frequency difference information, third frequency difference information, fourth frequency difference information, movement speed information of the terminal device, first frequency, second frequency, third frequency, coordinates of the first access network device, coordinates of the second access network device, or coordinates of the third access network device.

[0283] Optionally, the location information of the terminal device is used to indicate the coordinates of the terminal device.

[0284] It is understood that, for ease of description, S408 and S410 in the above method 400 are performed by the second access network device. Optionally, S408 and / or S410 may be performed by other access network devices different from the second access network device. For example, the first access network device may perform S408 and send second frequency difference information to the LMF unit to indicate the difference determined in S408. Or, for example, the third access network device may perform S410 and send fourth frequency difference information to the LMF unit to indicate the difference determined in S410.

[0285] To better illustrate method 400, the following will combine... Figure 5 For example, the terminal device in method 400 can be... Figure 5 The UE shown; the first access network device in method 400 is Figure 5 The first frequency in method 400 of the transmission and reception point (TRP) 1 shown is... Figure 5 F in TRP1,TX The second access network device in method 400 is Figure 5 The second frequency in TRP2 shown in method 400 is Figure 5 F in TRP2,TX The third access network device in method 400 is Figure 5 The third frequency in the TRP3 method 400 is... Figure 5 F in TRP3,TX .

[0286] a)TRP1 with F TRP1,TX Send the first reference signal (corresponding to S405, i.e., F) TRP1,TX (for theoretical frequency), TRP2 uses F TRP2,TX Send the second reference signal (corresponding to S406, i.e., F) TRP2,TX (Theoretical frequency), TRP3 with FTRP3,TX transmit a third reference signal (corresponding to S407, i.e., F TRP3,TX is the theoretical frequency).

[0287] wherein the LMF unit configures the first access network device to transmit the first reference signal at F TRP1,TX , the second access network device to transmit the second reference signal at F TRP1,TX , and the third access network device to transmit the third reference signal at F TRP3,TX . However, due to the limitation of the hardware condition of the first access network device, the second access network device, or the third access network device, the first access network device may actually transmit the first reference signal at a frequency F TRP1,TX instead of F TRP1,TX , the second access network device may actually transmit the second reference signal at a frequency F TRP2,TX instead of F TRP2,TX , and the third access network device may actually transmit the third reference signal at a frequency F TRP3,TX instead of F TRP3,TX . However, F TRP1,TX , F TRP2,TX , and F TRP3,TX are unknown quantities that cannot be measured.

[0288] b) TRP2 determines F TRP_21 = F TRP2,TX - F TRP1,TX (corresponding to S408).

[0289] wherein TRP2 can determine F TRP_21 using a frequency mixer, i.e., TRP2 can not determine F TRP1,TX and F TRP2,TX , but can directly determine the difference between F TRP2,TX - F TRP1,TX .

[0290] c) TRP2 determines F TRP_23 = F TRP2,TX - F TRP3,TX (corresponding to S410).

[0291] wherein TRP2 can determine F TRP_23 using a frequency mixer, i.e., TRP2 can not determine F TRP3,TX and F TRP2,TX , but can directly determine the difference between F TRP2,TX - F TRP3,TX .

[0292] d) TRP2 sends the second frequency difference information (corresponding to S409) and the fourth frequency difference information (corresponding to S411) to the LMF unit, the second frequency difference information indicating FTRP_21 The fourth frequency difference information indicates F TRP_23 .

[0293] e) The frequency offset of the received first reference signal measured by the UE is F1, where F1 is different from the actual frequency F′ of the first reference signal transmitted by TRP1. TRP1,TX The actual first reference signal Doppler frequency offset F d1 and the UE's clock frequency F UE Related, for example, F1 = F′ TRP1,TX +F d1 -F UE In other words, the UE can measure F1, but does not need to measure F′, which is related to F1. TRP1,TX F d1 and F UE F1 can also be referred to as the Doppler frequency offset of the received first reference signal; in other words, due to the UE's clock frequency F... UE The actual frequency F′ of the first reference signal transmitted by TRP1 TRP1,TX The difference causes the measured Doppler frequency shift F1 of the first reference signal to differ from the actual Doppler frequency shift F of the first reference signal. d1 Different, if the UE's clock frequency F UE The actual frequency F′ of the first reference signal transmitted by TRP1 TRP1,TX If they are equal, then the Doppler frequency offset F1 of the first reference signal measured by the UE is equal to the actual Doppler frequency offset F of the first reference signal. d1 Equal; the frequency offset of the received second reference signal measured by the UE is F2, where F2 is equal to the actual frequency F′ of the second reference signal transmitted by TRP2. TRP2,TX The actual Doppler frequency shift F of the second reference signal d2 and the UE's clock frequency F UE Related, for example, F2 = F′ TRP2,TX +F d2 -F UE In other words, the UE can measure F2, but does not need to measure F′, which is related to F2. TRP2,TX F d2 and F UE F2 can also be referred to as the Doppler frequency offset of the received second reference signal, in other words, due to the UE's clock frequency F UE The actual frequency F′ of the second reference signal transmitted by TRP2 TRP2,TX The difference causes the measured Doppler frequency shift F2 of the second reference signal to differ from the actual Doppler frequency shift F of the second reference signal. d2 Different, if the UE's clock frequency F UEThe actual frequency F′ of the second reference signal transmitted by TRP2 TRP2,TX If they are equal, then the Doppler frequency offset F2 of the second reference signal measured by the UE is equal to the Doppler frequency offset F of the actual second reference signal. d2 They are equal. Therefore, the difference between the frequency offset of the received first reference signal measured by the UE and the frequency offset of the received second reference signal is FDOA. UE_12 =F1-F2=(F′) TRP1,TX +F d1 -F UE )-(F′ TRP2,TX +F d2 -F UE ) = F d1 -F d2 +F′ TRP1,TX -F′ TRP2,TX In other words, the difference in frequency offset between the two reference signals measured by the UE can cancel out the UE's clock frequency F. UE This reduces the impact of UE clock frequency errors. The first frequency difference information sent by the UE to the LMF unit can indicate the FDOA. UE_12 Of course, the UE can also directly send F1 and F2 to the LMF unit, so that the LMF unit can determine the FDOA. UE_12 FDOA UE_12 It can also be referred to as the frequency difference of arrival (FDOA) between the first reference signal and the second reference signal.

[0294] f) The frequency offset of the received third reference signal measured by the UE is F3, where F3 is different from the actual frequency F′ of the third reference signal transmitted by TRP3. TRP3,TX The actual Doppler frequency shift F of the third reference signal d3 and the UE's clock frequency F UE Related, for example, F3 = F′ TRP3,TX +F d3 -F UE In other words, the UE can measure F3, but does not need to measure F′ associated with F3. TRP3,TX F d3 and F UE F3 can also be referred to as the Doppler frequency offset of the received third reference signal, in other words, due to the UE's clock frequency F UE The actual frequency F′ of the third reference signal transmitted by TRP3 TRP3,TX The difference causes the measured Doppler frequency shift F3 of the third reference signal to differ from the actual Doppler frequency shift F of the third reference signal. d3Different, if the UE's clock frequency F UE The actual frequency F′ of the third reference signal transmitted by TRP3 TRP3,TX If they are equal, then the Doppler frequency offset F3 of the third reference signal measured by the UE is equal to the Doppler frequency offset F of the actual third reference signal. d3 They are equal. Therefore, the difference between the frequency offset of the received third reference signal measured by the UE and the frequency offset of the received second reference signal is FDOA. UE_32 =F3-F2=(F′) TRP3,TX +F d3 -F UE )-(F′ TRP2,TX +F d2 -F UE ) = F d3 -F d2 +F′ TRP3,TX -F′ TRP2,TX In other words, the difference in frequency offset between the two reference signals measured by the UE can cancel out the UE's clock frequency F. UE This reduces the impact of UE clock frequency errors. The third frequency difference information sent by the UE to the LMF unit can indicate the FDOA. UE_32 Of course, the UE can also directly send F3 and F2 to the LMF unit, so that the LMF unit can determine the FDOA. UE_32 FDOA UE_32 It can also be referred to as the FDOA of the third reference signal and the second reference signal.

[0295] g) The UE sends its motion speed information (corresponding to S416) to the LMF unit. The motion speed information indicates the magnitude v and direction φ of the UE's motion speed. UE .

[0296] h) The LMF element establishes equations (1) and (2) based on FDOA:

[0297]

[0298]

[0299] Wherein, φ1 is the angle between the direction of UE's movement and the line connecting TRP1 and UE. (x1, y1) are the coordinates of TRP1, (x1, y1) are known quantities, (x, y) are the coordinates of UE, (x, y) are unknown quantities; φ2 is the angle between the direction of motion of UE and the line connecting TRP2 and UE. (x2, y2) is the coordinate of TRP2, (x2, y2) is a known quantity; φ3 is the angle between the moving direction of the UE and the line connecting TRP3 and the UE, (x3, y3) is the coordinate of TRP3, (x3, y3) is a known quantity; λ1 is the wavelength of the first reference signal sent by TRP1, λ1 = c / F TRP1,TX , λ2 is the wavelength of the second reference signal sent by TRP2, λ2 = c / F TRP2,TX , λ3 is the wavelength of the third reference signal sent by TRP3, λ3 = c / F TRP3,TX , c is the speed of light; the speed of the UE is a known quantity, and the direction of the motion of the UE is a known quantity. UE

[0300] It should be noted that formula (1) is to offset the frequency error of the first reference signal sent by TRP1, and also to offset the frequency error of the second reference signal sent by TRP2, that is, through formula (1), the influence of the actual frequency F′ TRP1,TX error of the first reference signal sent by TRP1 can be reduced, and the influence of the actual frequency F′ TRP2,TX error of the second reference signal sent by TRP2 can be reduced. Similarly, formula (2) is to offset the frequency error of the third reference signal sent by TRP3, and also to offset the frequency error of the second reference signal sent by TRP2, that is, through formula (2), the influence of the actual frequency F′ TRP2,TX error of the second reference signal sent by TRP2 can be reduced, and the influence of the actual frequency F′ TRP3,TX error of the third reference signal sent by TRP3 can be reduced.

[0301] That is, in determining the coordinate (x, y) of the UE, the LMF unit can obtain the coordinate (x1, y1) of TRP1, the coordinate (x2, y2) of TRP2, and the coordinate (x3, y3) of TRP3, that is, there are two unknown quantities x and y in the above two equations, so the coordinate (x, y) of the UE can be obtained.

[0302] It should be noted that in the process of calculating the coordinate (x, y) of the UE, the LMF unit obtains FDOA UE_12 , FDOA UE_32 , v and φ UE from the terminal device, and obtains F TRP_21 and F TRP_23 ​, and the LMF unit can obtain λ1, λ2, and λ3, and can also obtain the coordinates (x1, y1) of TRP1, the coordinates (x2, y2) of TRP2, and the coordinates (x3, y3) of TRP3. The coordinates (x, y) of the UE can be determined using these known quantities. The derivation principle of the above formula (1) and formula (2) is that, in the actual operation process, the LMF unit can not need to obtain the intermediate parameters in the derivation of formula (1) and formula (2), such as the LMF unit can not need to know F′ TRP1,TX , F′ TRP2,TX , F′ TRP3,TX , F d1 , F d2 , F d3 , and F UE .

[0303] It should also be noted that Figure 5 , the coordinates (x1, y1) of TRP1, the coordinates (x2, y2) of TRP2, and the coordinates (x3, y3) of TRP3 can be coordinates in the world coordinate system, and the coordinates (x, y) of the UE can also be coordinates in the world coordinate system.

[0304] In the method of processing information described in the above method 400, the LMF unit determines the position information of the terminal device, for example, the LMF unit needs to obtain the position of the terminal device in the above method 400, and the LMF unit can determine the position information of the terminal device. In some scenarios, the terminal device can also determine the position information of the terminal device, for example, in the scenario where the user needs to navigate through the terminal device, the terminal device can determine the position information of the terminal device. The method of processing information of the terminal device to determine the position information of the terminal device is described below in the method 600 of processing information of the terminal device. Figure 6 As shown in Figure 6 , the method 600 includes:

[0305] S601, same as S401.

[0306] S602, the LMF unit sends first information to the terminal device, and the terminal device receives the first information from the LMF unit.

[0307] Optionally, the first information is used to instruct the terminal device to measure the position information of the terminal device.

[0308] Optionally, the first information comprises assistance measurement information, and the assistance measurement information comprises at least one of an identifier of the first access network device, an identifier of the second access network device, an identifier of the third access network device, or configuration information of a reference signal. The configuration information of the reference signal is used to indicate a first frequency at which the first access network device transmits a first reference signal, a second frequency at which the second access network device transmits a second reference signal, a third frequency at which the third access network device transmits a third reference signal, fourth time information at which the first access network device transmits the first reference signal, second time information at which the second access network device transmits the second reference signal, or fifth time information at which the third access network device transmits the third reference signal.

[0309] Optionally, the assistance measurement information can further indicate at least one of a coordinate of the first access network device, a coordinate of the second access network device, or a coordinate of the third access network device.

[0310] Optionally, the LMF unit can actively trigger execution of S602, or the terminal device can send a positioning request message to the LMF unit, and the LMF unit triggers execution of S602 after receiving the positioning request message.

[0311] It can be understood that the order of S601 and S602 has no any limitation, and S601 can be performed before or after S602 or simultaneously with S602.

[0312] S603-S611 are the same as S403-S411, respectively.

[0313] S612, the LMF unit sends second frequency difference information to the terminal device.

[0314] S609 can trigger execution of S612. That is, the LMF unit can forward the second frequency difference information to the terminal device after receiving the second frequency difference information.

[0315] S613, the LMF unit sends fourth frequency difference information to the terminal device.

[0316] S611 can trigger execution of S613. That is, the LMF unit can forward the fourth frequency difference information to the terminal device after receiving the fourth frequency difference information.

[0317] It can be understood that the LMF unit can simultaneously execute S612 and S613, or can separately execute S612 and S613.

[0318] S614 is the same as S412.

[0319] The first frequency difference information can indicate a difference between a frequency offset of the terminal device receiving the first reference signal in S605 and a frequency offset of the terminal device receiving the second reference signal in S606.

[0320] S615, same as S413.

[0321] The third frequency difference information can indicate a difference between a frequency offset of the third reference signal received by the terminal device in S607 and a frequency offset of the second reference signal received by the terminal device in S606.

[0322] S616, the terminal device determines the position information of the terminal device according to at least one of the difference in S614, the difference in S615, the third frequency difference information, the fourth frequency difference information, or the motion speed information of the terminal device.

[0323] The first frequency difference information can indicate the difference in S614, and the second frequency difference information can indicate the difference in S615.

[0324] Optionally, S616 includes that the terminal device can obtain the position information of the terminal device by performing mathematical operations on the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information, and the motion speed information of the terminal device.

[0325] Optionally, S616 includes that the terminal device determines the position information of the terminal device according to at least one of the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information, the motion speed information of the terminal device, a wavelength at which the first access network device transmits the first reference signal, a wavelength at which the second access network device transmits the second reference signal, or a wavelength at which the third access network device transmits the third reference signal.

[0326] Optionally, the wavelength at which the first access network device transmits the first reference signal is related to the first frequency, for example, the wavelength at which the first access network device transmits the first reference signal is equal to the speed of light divided by the first frequency. That is, the first frequency can be configured in the assistance measurement information in S602, and thus the terminal device can determine the wavelength at which the first access network device transmits the first reference signal according to the speed of light and the first frequency.

[0327] Optionally, the wavelength at which the second access network device transmits the second reference signal is related to the second frequency, for example, the wavelength at which the second access network device transmits the second reference signal is equal to the speed of light divided by the second frequency. That is, the second frequency can be configured in the assistance measurement information in S602, and thus the terminal device can determine the wavelength at which the second access network device transmits the second reference signal according to the speed of light and the second frequency.

[0328] Optionally, the wavelength of the third reference signal sent by the third access network device is related to the third frequency, for example, the wavelength of the third reference signal sent by the third access network device is equal to the speed of light divided by the third frequency. That is, the third frequency can be configured in S602, and therefore, the terminal device can determine the wavelength of the third reference signal sent by the third access network device according to the speed of light and the third frequency.

[0329] Optionally, the terminal device determines the position information of the terminal device according to at least one of the first frequency difference value information, the second frequency difference value information, the third frequency difference value information, the fourth frequency difference value information, the motion speed information of the terminal device, the wavelength of the first reference signal sent by the first access network device, the wavelength of the second reference signal sent by the second access network device, or the wavelength of the third reference signal sent by the third access network device, including: the terminal device determines the position information of the terminal device according to at least one of the first frequency difference value information, the second frequency difference value information, the third frequency difference value information, the fourth frequency difference value information, the motion speed information of the terminal device, the wavelength of the first reference signal sent by the first access network device, the wavelength of the second reference signal sent by the second access network device, the wavelength of the third reference signal sent by the third access network device, the coordinates of the first access network device, the coordinates of the second access network device, or the coordinates of the third access network device.

[0330] Optionally, the terminal device can determine the coordinates of the first access network device, the coordinates of the second access network device, or the coordinates of the third access network device according to the assistance measurement information in S602.

[0331] Optionally, S616 includes: the terminal device determines the position information of the terminal device according to at least one of the first frequency difference value information, the second frequency difference value information, the third frequency difference value information, the fourth frequency difference value information, the motion speed information of the terminal device, the first frequency, the second frequency, or the third frequency. Wherein, the first frequency is related to the wavelength of the first reference signal sent by the first access network device, the second frequency is related to the wavelength of the second reference signal sent by the second access network device, and the third frequency is related to the wavelength of the third reference signal sent by the third access network device.

[0332] Optionally, the terminal device determines the position information of the terminal device according to at least one of the first frequency difference value information, the second frequency difference value information, the third frequency difference value information, the fourth frequency difference value information, the motion speed information of the terminal device, the first frequency, the second frequency, or the third frequency, including: the terminal device determines the position information of the terminal device according to at least one of the first frequency difference value information, the second frequency difference value information, the third frequency difference value information, the fourth frequency difference value information, the motion speed information of the terminal device, the first frequency, the second frequency, the third frequency, the coordinates of the first access network device, the coordinates of the second access network device, or the coordinates of the third access network device.

[0333] Optionally, the location information of the terminal device indicates coordinates of the terminal device.

[0334] It should be noted that in the method 400 and the method 600, the first frequency difference value information indicates a difference between a frequency at which the terminal device receives a first reference signal sent by a first access network device and a frequency at which the terminal device receives a second reference signal sent by a second access network device; the second frequency difference value information indicates a difference between a frequency at which the second access network device sends the second reference signal and a frequency at which the first access network device sends the first reference signal; the third frequency difference value information indicates a difference between a frequency offset at which the terminal device receives a third reference signal sent by a third access network device and a frequency offset at which the terminal device receives the second reference signal sent by the second access network device; and the fourth frequency difference value information indicates a difference between a frequency at which the second access network device sends the second reference signal and a frequency at which the third access network device sends the third reference signal. Alternatively, the first frequency difference value information indicates a difference between a frequency at which the terminal device receives the second reference signal sent by the second access network device and a frequency at which the terminal device receives the first reference signal sent by the first access network device, the second frequency difference value information indicates a difference between a frequency at which the first access network device sends the first reference signal and a frequency at which the second access network device sends the second reference signal, the third frequency difference value information indicates a difference between a frequency at which the terminal device receives the second reference signal sent by the second access network device and a frequency offset at which the terminal device receives the third reference signal sent by the third access network device, and the fourth frequency difference value information indicates a difference between a frequency at which the third access network device sends the third reference signal and a frequency at which the second access network device sends the second reference signal. The specific calculation principle is similar to the above method, and is not described in detail to avoid redundancy.

[0335] It can be understood that, in the method 600, S608 and S610 are performed by the second access network device for the convenience of description. Alternatively, S608 and / or S610 can be performed by an access network device other than the second access network device, for example, the first access network device can perform S608 and send the second frequency difference value information to the LMF unit to indicate the difference determined in S608, and for another example, the third access network device can perform S610 and send the fourth frequency difference value information to the LMF unit to indicate the difference determined in S610.

[0336] In the method 600, the terminal device determines the location information of the terminal device, and the principle is similar to that in the LMF unit determines the location information of the terminal device in the method 400, and is not described in detail to avoid redundancy. Figure 5 Figure 4- Figure 6 ​In the embodiment of FIG. 7, three access network devices are needed, and in some embodiments, only two access network devices can exist. The method 700 of information processing in the scenario where two access network devices exist is described below. In the method 700 of information processing, the LMF unit determines the position information of the terminal device, as shown in Figure 7 The method 700 includes the following steps.

[0337] S701, the LMF unit sends third information to the second access network device, and the second access network device receives the third information from the LMF unit.

[0338] Optionally, the LMF unit can also be other core network devices.

[0339] Optionally, the third information is used to request the frequency difference value information from the second access network device.

[0340] Optionally, the third information is also used to request the time difference value information from the second access network device.

[0341] Optionally, the third information can include the configuration information of the first access network device to be measured.

[0342] Optionally, the configuration information of the first access network device is used to configure the identity of the first access network device and / or the first time information of the measured frequency difference value information. Optionally, the first time information is used to indicate the start time and / or the measurement period of the second access network device. The second access network device can measure the difference between the frequency of the second reference signal sent by the second access network device and the frequency of the first reference signal sent by the first access network device at the start time indicated by the first time information; and / or, the second access network device can measure the difference between the frequency of the second reference signal sent by the second access network device and the frequency of the first reference signal sent by the first access network device according to the measurement period indicated by the first time information.

[0343] Optionally, the third information includes a second instruction, and the second instruction is used to instruct the second access network device to send the second reference signal at a second frequency. Optionally, the second instruction can also indicate the second time information of the second access network device sending the second reference signal. Optionally, the second time information is used to indicate the start time and / or the sending period of the second access network device sending the second reference signal.

[0344] It can be understood that the third information can also not include the second instruction, and the second access network device periodically sends the second reference signal at the second frequency.

[0345] Optionally, the second access network device can be the access network device serving the terminal device.

[0346] Optionally, the LMF unit can actively trigger to perform S701, or the terminal device can send a positioning request message to the LMF unit, and the LMF unit triggers to perform S701 after receiving the positioning request message.

[0347] It should be noted that S701 is an optional step, that is, the method 700 can not include S701, and the second access network device can actively report the frequency difference information, such as actively reporting the second frequency difference information described below.

[0348] S702, the LMF unit sends second information to the terminal device, and the terminal device receives the second information.

[0349] Optionally, the second information is used to indicate to the terminal device that the LMF unit needs to measure the position information of the terminal device.

[0350] Optionally, the second information is used to request the frequency difference information and / or the time difference information from the terminal device, that is, the LMF unit can directly indicate to the terminal device that the LMF unit needs to measure the position information of the terminal device, and the terminal device reports the first frequency difference information and / or the first time difference information to the LMF unit based on the second information; or the LMF requests the frequency difference information and / or the time difference information from the terminal device, and the terminal device sends the first frequency difference information and / or the first time difference information to the LMF unit based on the request of the second information.

[0351] Optionally, the second information includes assistance measurement information, and the assistance measurement information includes at least one of an identifier of the first access network device, an identifier of the second access network device, or configuration information of a reference signal. The configuration information of the reference signal is used to indicate at least one of a first frequency at which the first access network device transmits a first reference signal, a second frequency at which the second access network device transmits a second reference signal, fourth time information at which the first access network device transmits the first reference signal, or second time information at which the second access network device transmits the second reference signal.

[0352] Optionally, the LMF unit can actively trigger to perform S702, or the terminal device can send a positioning request message to the LMF unit, and the LMF unit triggers to perform S702 after receiving the positioning request message.

[0353] It can be understood that the order of S701 and S702 has no any limitation, and S701 can be performed before or after S702 or simultaneously with S702.

[0354] S703, same as S403.

[0355] S704, same as S405.

[0356] S705, same as S406.

[0357] S706, same as S408.

[0358] S707, same as S409.

[0359] S708, the second access network device determines a difference between the time when the first access network device sends the first reference signal and the time when the second access network device sends the second reference signal.

[0360] Optionally, the second access network device determines the time when the first access network device sends the first reference signal, and then determines the difference between the time when the second access network device sends the second reference signal and the time when the first access network device sends the first reference signal. Optionally, the second access network device determines the time when the first access network device sends the first reference signal, including: the second access network device can determine the time when the first reference signal is received by performing correlation operation on the local sequence of the first reference signal and the received reference signal sequence, and determine the transmission time of the first reference signal according to the distance between the first access network device and the second access network device and the transmission speed of the first reference signal, and determine the time when the first access network device sends the first reference signal according to the time when the first reference signal is received and the transmission time of the first reference signal.

[0361] It can be understood that S708 is an optional step, and the protocol can specify that the time when the second access network device sends the second reference signal is the same as the time when the first access network device sends the first reference signal.

[0362] Optionally, in the case that the time when the second access network device sends the second reference signal is the same as the time when the first access network device sends the first reference signal, the second access network device determines that the difference between the time when the second access network device sends the second reference signal and the time when the first access network device sends the first reference signal is zero.

[0363] S709, the second access network device sends second time difference information to the LMF unit, and the second time difference information is used to indicate the difference between the time when the first access network device sends the first reference signal and the time when the second access network device sends the second reference signal.

[0364] It can be understood that S709 is also an optional step, and S709 does not exist in the case that S708 does not exist.

[0365] Optionally, in the case that S709 exists, S707 and S709 can be executed simultaneously or in sequence, and the embodiments of the present application are not limited.

[0366] S710, same as S412.

[0367] S711, same as S413.

[0368] S712, the terminal device determines a difference between a time at which the terminal device receives the first reference signal in S704 and a time at which the terminal device receives the second reference signal in S705.

[0369] Specifically, the terminal device can record the time at which the first reference signal is received and record the time at which the second reference signal is received, and obtain the difference between the two recorded times, thereby obtaining the difference between the time at which the terminal device receives the first reference signal in S704 and the time at which the terminal device receives the second reference signal in S705.

[0370] Since the distance from the first access network device to the terminal device is different from the distance from the second access network device to the terminal device, the duration of transmitting the first reference signal is different from the duration of transmitting the second reference signal, and thus the difference between the time at which the terminal device receives the first reference signal in S704 and the time at which the terminal device receives the second reference signal in S705 can represent the difference between the distance from the first access network device to the terminal device and the distance from the second access network device to the terminal device.

[0371] It should be noted that S712 is after S704 and S705, and S712 has no limitation on the order of other steps.

[0372] S713, the terminal device sends the first time difference value information to the LMF unit, and the LMF unit receives the first time difference value information from the terminal device, the first time difference value information being used to indicate the difference between the time at which the terminal device receives the first reference signal in S704 and the time at which the terminal device receives the second reference signal in S705.

[0373] S714, the terminal device sends the motion speed information of the terminal device to the LMF unit.

[0374] Optionally, the motion speed information of the terminal device is used to indicate the size of the motion speed of the terminal device and / or the direction of the motion speed of the terminal device.

[0375] Optionally, the terminal device can simultaneously perform S711, S713 and S714, or can separately perform S711, S713 and S714.

[0376] Optionally, in response to the second information in S702, the terminal device can send the first frequency difference value information, the first time difference value information and the motion speed information of the terminal device to the LMF unit.

[0377] S715, the LMF unit determines the position information of the terminal device according to at least one of the first frequency difference value information, the second frequency difference value information, the first time difference value information, the second time difference value information or the motion speed information of the terminal device.

[0378] Optionally, in a case that the second access network device does not report the second time difference value information, the LMF unit can not need the second time difference value information in determining the position information of the terminal device.

[0379] Optionally, S715 comprises: the LMF unit can obtain the position information of the terminal device by performing mathematical operation on the first frequency difference value information, the second frequency difference value information, the first time difference value information, the second time difference value information and the motion speed information of the terminal device.

[0380] Optionally, S715 comprises: the LMF unit determines the position information of the terminal device according to at least one of the first frequency difference value information, the second frequency difference value information, the first time difference value information, the second time difference value information, the motion speed information of the terminal device, a wavelength at which the first access network device transmits the first reference signal or a wavelength at which the second access network device transmits the second reference signal.

[0381] Optionally, the wavelength at which the first access network device transmits the first reference signal is related to the first frequency, for example, the wavelength at which the first access network device transmits the first reference signal is equal to the speed of light divided by the first frequency. That is, the first frequency is configured by the LMF unit, and thus the LMF unit can determine the wavelength at which the first access network device transmits the first reference signal according to the speed of light and the first frequency.

[0382] Optionally, the wavelength at which the second access network device transmits the second reference signal is related to the second frequency, for example, the wavelength at which the second access network device transmits the second reference signal is equal to the speed of light divided by the second frequency. That is, the second frequency is configured by the LMF unit, and thus the LMF unit can determine the wavelength at which the second access network device transmits the second reference signal according to the speed of light and the second frequency.

[0383] Optionally, the LMF unit determines the position information of the terminal device according to at least one of the first frequency difference value information, the second frequency difference value information, the first time difference value information, the second time difference value information, the motion speed information of the terminal device, a wavelength at which the first access network device transmits the first reference signal or a wavelength at which the second access network device transmits the second reference signal comprises: the LMF unit determines the position information of the terminal device according to at least one of the first frequency difference value information, the second frequency difference value information, the first time difference value information, the second time difference value information, the motion speed information of the terminal device, the wavelength at which the first access network device transmits the first reference signal, the wavelength at which the second access network device transmits the second reference signal, a coordinate of the first access network device or a coordinate of the second access network device.

[0384] Optionally, the LMF unit may know the coordinates of the first access network device or the second access network device in advance. For example, the first access network device may report its coordinates to the LMF unit, and the second access network device may report its coordinates to the LMF unit.

[0385] Optionally, S715 includes: the LMF unit determines the position information of the terminal device based on the first frequency difference information, the second frequency difference information, the first time difference information, the second time difference information, the motion speed information of the terminal device, and at least one of the first frequency or the second frequency.

[0386] Optionally, the LMF unit determines the location information of the terminal device based on at least one of the following: first frequency difference information, second frequency difference information, first time difference information, second time difference information, movement speed information of the terminal device, first frequency, second frequency, coordinates of the first access network device, or coordinates of the second access network device.

[0387] Optionally, the location information of the terminal device is used to indicate the coordinates of the terminal device.

[0388] It is understood that, for ease of description, S706 and S708 in the above method 700 are executed by the second access network device. Optionally, S706 and / or S708 may be executed by a first access network device, different from the second access network device. For example, the first access network device may execute S706 and send second frequency difference information to the LMF unit to indicate the difference determined in S706. Or, for example, the first access network device may execute S708 and send second time difference information to the LMF unit to indicate the difference determined in S708.

[0389] To better illustrate method 700, the following will combine... Figure 8 For example, the terminal device in method 700 can be... Figure 8 The UE shown; the first access network device in method 700 is Figure 8 The first frequency in method 700 of TRP1 shown is... Figure 8 F in TRP1,TX The second access network device in method 700 is Figure 8 The second frequency in TRP2 shown in method 400 is Figure 8 F in TRP2,TX .

[0390] a)TRP1 with F TRP1,TXtransmits a first reference signal (corresponding to S704, i.e., F TRP1,TX transmits a second reference signal (corresponding to S705, i.e., F TRP2,TX is the theoretical frequency). TRP2,TX

[0391] wherein the LMF unit configures the first access network device to transmit a first reference signal at F TRP1,TX and the second access network device to transmit a second reference signal at F TRP1,TX However, due to the limitation of the hardware condition of the first access network device or the second access network device, the first access network device may actually transmit the first reference signal at a frequency F' TRP1,TX instead of F TRP1,TX , and the second access network device may actually transmit the second reference signal at a frequency F' TRP2,TX instead of F TRP2,TX However, F' TRP1,TX and F' TRP2,TX are unknown quantities that cannot be measured.

[0392] b) TRP2 determines F TRP_21 = F' TRP2,TX - F' TRP1,TX (corresponding to S706).

[0393] wherein TRP2 can determine F TRP_21 using a frequency mixer, i.e., TRP2 can not determine F' TRP1,TX and F' TRP2,TX but can directly determine the difference between F' TRP2,TX - F' TRP1,TX .

[0394] c) TRP2 determines the difference between the time at which TRP1 transmits the first reference signal and the time at which TRP2 transmits the second reference signal

[0395] d) TRP2 transmits second frequency difference information (corresponding to S707) and second time difference information (corresponding to S709) to the LMF unit, wherein the second frequency difference information indicates F TRP_21 , and the second time difference information indicates

[0396] e) the UE measures a frequency offset F1 of the received first reference signal, wherein F1 is related to the actual frequency F' TRP1,TX of the first reference signal transmitted by TRP1, the actual first reference signal Doppler frequency offset F d1 , and the clock frequency F UE of the UE, e.g., F1 = F' TRP1,TX + F​d1 -F UE In other words, the UE can measure F1, but does not need to measure F′ associated with F1. TRP1,TX F d1 and F UE F1 can also be called the Doppler frequency offset of the received first reference signal; in other words, due to the UE's clock frequency F... UE The actual frequency F′ of the first reference signal transmitted by TRP1 TRP1,TX The difference causes the measured Doppler frequency shift F1 of the first reference signal to differ from the actual Doppler frequency shift F of the first reference signal. d1 Different, if the UE's clock frequency F UE The actual frequency F′ of the first reference signal transmitted by TRP1 TRP1,TX If they are equal, then the Doppler frequency offset F1 of the first reference signal measured by the UE is equal to the actual Doppler frequency offset F of the first reference signal. d1 Equal; the frequency offset of the received second reference signal measured by the UE is F2, where F2 is equal to the actual frequency F′ of the second reference signal transmitted by TRP2. TRP2,TX The actual Doppler frequency shift F of the second reference signal d2 and the UE's clock frequency F UE Related, for example, F2 = F′ TRP2,TX +F d2 -F UE In other words, the UE can measure F2, but does not need to measure F′ associated with F2. TRP2,TX F d2 and F UE F2 can also be referred to as the Doppler frequency offset of the received second reference signal; in other words, due to the UE's clock frequency F... UE The actual frequency F′ of the second reference signal transmitted by TRP2 TRP2,TX The difference causes the measured Doppler frequency shift F2 of the second reference signal to differ from the actual Doppler frequency shift F of the second reference signal. d2 Different, if the UE's clock frequency F UE The actual frequency F′ of the second reference signal transmitted by TRP2 TRP2,TX If they are equal, then the Doppler frequency offset F2 of the second reference signal measured by the UE is equal to the Doppler frequency offset F of the actual second reference signal. d2 They are equal. Therefore, the difference between the frequency offset of the received first reference signal measured by the UE and the frequency offset of the received second reference signal is FDOA. UE_12 =F1-F2=(F′) TRP1,TX +F d1 -F UE) = F TRP2,TX + F d2 - F UE ) = F d1 - F d2 + F TRP1,TX - F TRP2,TX , in other words, the difference of the frequency offsets of the two reference signals measured by the UE can offset the clock frequency F UE error of the UE, so that the impact of the clock frequency F UE error of the UE can be reduced. The first frequency difference information sent by the UE to the LMF unit can indicate FDOA UE_12 . Of course, the UE can also directly send F1 and F2 to the LMF unit, so that the LMF unit can determine FDOA UE_12 , wherein FDOA UE_12 may also be referred to as the FDOA of the first reference signal and the second reference signal.

[0397] f) The UE receives the first reference signal at time T1, and receives the second reference signal at time T2, and the difference between the time at which the UE receives the first reference signal and the time at which the UE receives the second reference signal is The first time difference information sent by the UE to the LMF unit can indicate Of course, the UE can also directly send T1 and T2 to the LMF unit, so that the LMF unit can determine

[0398] g) The UE sends the motion speed information of the UE to the LMF unit (corresponding to S714), and the motion speed information of the UE indicates the size v of the motion speed of the UE and the direction φ of the motion speed of the UE UE .

[0399] h) The LMF unit establishes the FDOA-based equation (3) and the time difference of arrival (TDOA)-based equation (4):

[0400]

[0401]

[0402] wherein d1 is the distance from the UE to TRP1, d2 is the distance from the UE to TRP2, φ1 is the angle between the motion direction of the UE and the line connecting TRP1 and the UE, (x1, y1) is the coordinate of TRP1, (x1, y1) is a known quantity, (x, y) is the coordinate of the UE, (x, y) is an unknown quantity; φ2 is the angle between the motion direction of the UE and the line connecting TRP2 and the UE, (x2, y2) is the coordinate of TRP2, (x2, y2) is a known quantity; λ1 is the wavelength of the first reference signal sent by TRP1, λ1 = c / F TRP1,TX , λ2 is the wavelength of the second reference signal sent by TRP2, λ2 = c / F TRP2,TX , c is the speed of light. The size of the motion speed of the UE v is a known quantity, and the direction of the motion speed of the UE φ UE is a known quantity.

[0403] It should be noted that formula (3) is to offset the frequency error of the first reference signal sent by TRP1, and also to offset the frequency error of the second reference signal sent by TRP2, that is, through formula (3), the influence of the actual frequency error F′ TRP1,TX of the first reference signal sent by TRP1 and the influence of the actual frequency error F′ TRP2,TX of the second reference signal sent by TRP2 can be reduced.

[0404] That is, in determining the coordinate (x, y) of the UE, the LMF unit can obtain the coordinate (x1, y1) of TRP1 and the coordinate (x2, y2) of TRP2, that is, there are two unknown quantities x and y in the above two equations, and therefore the coordinate (x, y) of the UE can be obtained.

[0405] It should be noted that in the process of calculating the coordinate (x, y) of the UE, the LMF unit obtains FDOA UE_12 , v and φ UE from the terminal device, obtains F TRP_21 and from the second access network device, and can obtain λ1, λ2, the coordinate (x1, y1) of TRP1, and the coordinate (x2, y2) of TRP2. The coordinate (x, y) of the UE can be determined by using these known quantities. The derivation principle of the above formula (3) and formula (4) is that in the actual operation process, the LMF unit can not need to obtain the intermediate parameters in the derivation of formula (3) and formula (4), such as the LMF unit can not need to know F′ TRP1,TX , F′ TRP2,TX , F d1 , F d2 , d1, d2 and F UE .

[0406] It should also be noted that, Figure 8 in which the coordinate (x1, y1) of TRP1 and the coordinate (x2, y2) of TRP2 can be coordinates in a world coordinate system, and the coordinate (x, y) of the UE can also be coordinates in a world coordinate system.

[0407] The method of processing information described in the above method 700 is that the LMF unit determines the position information of the terminal device. In some scenarios, the terminal device can also determine the position information of the terminal device, for example, the following is combined with Figure 9 The method of processing information 900 is described, and in the method 900, the terminal device determines the position information of the terminal device, as shown in Figure 9 The method 900 includes the following steps:

[0408] S901, same as S701.

[0409] S902, the LMF unit sends first information to the terminal device, and the terminal device receives the first information from the LMF unit.

[0410] Optionally, the first information is used to instruct the terminal device to measure the position information of the terminal device.

[0411] Optionally, the first information includes assistance measurement information, and the assistance measurement information includes at least one of the following: an identifier of the first access network device, an identifier of the second access network device, or configuration information of a reference signal. The configuration information of the reference signal is used to indicate at least one of the following: a first frequency at which the first access network device transmits a first reference signal, a second frequency at which the second access network device transmits a second reference signal, fourth time information at which the first access network device transmits the first reference signal, or second time information at which the second access network device transmits the second reference signal.

[0412] Optionally, the assistance measurement information can also indicate at least one of the following: coordinates of the first access network device or coordinates of the second access network device.

[0413] Optionally, the LMF unit can actively trigger S902 or trigger S902 based on the user's demand.

[0414] It can be understood that the order of S901 and S902 has no any limitation, S901 can be performed before or after S902 or at the same time.

[0415] S903-S909 are the same as S703-S709.

[0416] S910, the LMF unit sends second frequency difference information to the terminal device.

[0417] Wherein, S907 can trigger S910 to be performed. That is, the LMF unit receives the second frequency difference information and forwards the second frequency difference information to the terminal device.

[0418] S911, the LMF unit sends second time difference information to the terminal device.

[0419] The S909 can trigger the S911. That is, the LMF unit receives the second time difference value information and forwards the second time difference value information to the terminal device.

[0420] It can be understood that the LMF unit can execute the S912 and the S913 simultaneously, or can execute the S912 and the S613 respectively.

[0421] The S912 is the same as the S710.

[0422] The first frequency difference value information can indicate a difference between a frequency offset of the first reference signal received by the terminal device in the S904 and a frequency offset of the second reference signal received by the terminal device in the S905.

[0423] The S913 is the same as the S712.

[0424] The first time difference value information can indicate a difference between a time of receiving the first reference signal by the terminal device in the S904 and a time of receiving the second reference signal by the terminal device in the S905.

[0425] The S914 includes that the terminal device determines the position information of the terminal device according to at least one of the difference in the S912, the second frequency difference value information, the difference in the S913, the second time difference value information, or the motion speed information of the terminal device.

[0426] The first frequency difference value information can indicate the difference in the S912, and the first time difference value information can indicate the difference in the S913.

[0427] Optionally, in a case where the second access network device does not report the second time difference value information, the S909 and the S911 can not exist, and the terminal device can not need the second time difference value information in determining the position information of the terminal device.

[0428] Optionally, the S914 includes that the terminal device can obtain the position information of the terminal device by performing mathematical operations on the first frequency difference value information, the second frequency difference value information, the first time difference value information, the second time difference value information, and the motion speed information of the terminal device.

[0429] Optionally, the S914 includes that the terminal device determines the position information of the terminal device according to at least one of the first frequency difference value information, the second frequency difference value information, the first time difference value information, the second time difference value information, the motion speed information of the terminal device, a wavelength at which the first access network device sends the first reference signal, or a wavelength at which the second access network device sends the second reference signal.

[0430] Optionally, the wavelength of the first reference signal sent by the first access network device is related to the first frequency, for example, the wavelength of the first reference signal sent by the first access network device is equal to the speed of light divided by the first frequency. That is, the first frequency is configured to the terminal device by the LMF unit, and therefore the terminal device can determine the wavelength of the first reference signal sent by the first access network device according to the speed of light and the first frequency.

[0431] Optionally, the wavelength of the second reference signal sent by the second access network device is related to the second frequency, for example, the wavelength of the second reference signal sent by the second access network device is equal to the speed of light divided by the second frequency. That is, the second frequency is configured to the terminal device by the LMF unit, and therefore the terminal device can determine the wavelength of the second reference signal sent by the second access network device according to the speed of light and the second frequency.

[0432] Optionally, the terminal device determines the position information of the terminal device according to at least one of the first frequency difference value information, the second frequency difference value information, the first time difference value information, the second time difference value information, the motion speed information of the terminal device, the wavelength of the first reference signal sent by the first access network device, or the wavelength of the second reference signal sent by the second access network device, including: the terminal device determines the position information of the terminal device according to at least one of the first frequency difference value information, the second frequency difference value information, the first time difference value information, the second time difference value information, the motion speed information of the terminal device, the first frequency, the second frequency, the coordinates of the first access network device, or the coordinates of the second access network device.

[0433] Optionally, the terminal device can determine at least one of the coordinates of the first access network device or the coordinates of the second access network device according to the auxiliary measurement information in S902.

[0434] Optionally, S914 includes: the terminal device determines the position information of the terminal device according to at least one of the first frequency difference value information, the second frequency difference value information, the first time difference value information, the second time difference value information, the motion speed information of the terminal device, or the first frequency or the second frequency.

[0435] Optionally, the terminal device determines the position information of the terminal device according to at least one of the first frequency difference value information, the second frequency difference value information, the first time difference value information, the second time difference value information, the motion speed information of the terminal device, the first frequency, or the second frequency, including: the terminal device determines the position information of the terminal device according to at least one of the first frequency difference value information, the second frequency difference value information, the first time difference value information, the second time difference value information, the motion speed information of the terminal device, the first frequency, the second frequency, the coordinates of the first access network device, or the coordinates of the second access network device.

[0436] Optionally, the location information of the terminal device indicates coordinates of the terminal device.

[0437] It can be understood that, in the method 900, S906 and S908 are performed by the second access network device for the sake of description. Optionally, S906 and / or S908 can be performed by a first access network device different from the second access network device, for example, the first access network device can perform S906 and send the second frequency difference information to the LMF unit to indicate the difference value determined in S906, for another example, the first access network device can perform S908 and send the second time difference information to the LMF unit to indicate the difference value determined in S908.

[0438] It should be noted that, in the method 700 and the method 900, the first frequency difference information indicates a difference between a frequency at which the terminal device receives the first reference signal sent by the first access network device and a frequency at which the terminal device receives the second reference signal sent by the second access network device, the second frequency difference information is used to indicate a difference between a frequency at which the second access network device sends the second reference signal and a frequency at which the first access network device sends the first reference signal, the first time difference information is used to indicate a difference between a time at which the terminal device receives the first reference signal sent by the first access network device and a time at which the terminal device receives the second reference signal sent by the second access network device, and the second time difference information is used to indicate a difference between a time at which the first access network device sends the first reference signal and a time at which the second access network device sends the second reference signal. Alternatively, the first frequency difference information indicates a difference between a frequency at which the terminal device receives the second reference signal sent by the second access network device and a frequency at which the terminal device receives the first reference signal sent by the first access network device; the second frequency difference information is used to indicate a difference between a frequency at which the first access network device sends the first reference signal and a frequency at which the second access network device sends the second reference signal; the first time difference information is used to indicate a difference between a time at which the terminal device receives the second reference signal sent by the second access network device and a time at which the terminal device receives the first reference signal sent by the first access network device; and the second time difference information is used to indicate a difference between a time at which the second access network device sends the second reference signal and a time at which the first access network device sends the first reference signal; the specific calculation principle is similar to the above method, and details are not described.

[0439] The above Figure 4- Figure 9In some embodiments, the motion speed information of the terminal device can be considered as a known quantity in the process of determining the location information of the terminal device, i.e., the terminal device can measure the motion speed information of the terminal device, and the terminal device can determine the location information of the terminal device according to the measured motion speed information. In the process of determining the location information of the terminal device by the LMF unit, the terminal device can send the measured motion speed information of the terminal device to the LMF unit, and the LMF unit can determine the location information of the terminal device according to the motion speed information of the terminal device sent by the terminal device. In some scenarios, the terminal device can not be able to measure the motion speed information of the terminal device due to hardware limitations, so the motion speed information of the terminal device is also unknown. In the following, the process of determining the location information and the motion speed information of the terminal device by the LMF unit is described in combination with Figure 10 A method 1000 of processing information is described, and the method 1000 is the process of determining the location information and the motion speed information of the terminal device by the LMF unit. In the method 1000, the first device is taken as the LMF unit, the second device is taken as the terminal device, the third device is taken as the first access network device, the fourth device is taken as the second access network device, and the fifth device is taken as the third access network device. The method 1000 is described as follows. Figure 10 As shown in the method 1000, the method 1000 includes the following steps.

[0440] S1001, the LMF unit sends third information to the second access network device, and the second access network device receives the third information from the LMF unit.

[0441] Optionally, the LMF unit can also be another core network device.

[0442] Optionally, the third information is used to request the frequency difference value information and the time difference value information from the second access network device.

[0443] Optionally, the third information can include the configuration information of the first access network device and / or the configuration information of the third access network device.

[0444] Optionally, the configuration information of the first access network device is used to configure the identity of the first access network device and / or the first time information of measuring the frequency difference value information. Optionally, the first time information is used to indicate the start time of measurement and / or the first measurement period. The second access network device can measure the difference between the frequency of the second reference signal sent by the second access network device and the frequency of the first reference signal sent by the first access network device at the start time indicated by the first time information. In addition, the second access network device can measure the difference between the frequency of the second reference signal sent by the second access network device and the frequency of the first reference signal sent by the first access network device according to the measurement period indicated by the first time information.

[0445] Optionally, the configuration information of the third access network device is used to configure the identifier of the third access network device and / or the third time information for measuring the frequency difference. Optionally, the third time information is used to indicate the start time and / or measurement period of the measurement by the second access network device; the second access network device may measure the difference between the frequency at which the second access network device transmits the second reference signal and the frequency at which the third access network device transmits the third reference signal at the start time indicated by the third time information; and / or, the second access network device may measure the difference between the frequency at which the second access network device transmits the second reference signal and the frequency at which the third access network device transmits the third reference signal at the measurement period indicated by the third time information.

[0446] Optionally, the third information includes a second instruction, which instructs the second access network device to transmit the second reference signal at a second frequency. Optionally, the second instruction may also instruct the second access network device to transmit the second reference signal using second timing information. Optionally, the second timing information indicates the start time and / or transmission period of the second access network device transmitting the second reference signal.

[0447] It is understandable that the third information may not include the second instruction, and the second access network device periodically sends the second reference signal at the second frequency.

[0448] Optionally, the second access network device can be the access network device of the serving terminal device.

[0449] Optionally, the LMF unit can actively trigger the execution of S1001, or the terminal device can send a location request message to the LMF unit, and the LMF unit will trigger the execution of S1001 after receiving the location request message.

[0450] It should be noted that S1001 is an optional step, that is, method 1000 may not include S1001. The second access network device may actively report frequency difference information and time difference information, such as actively reporting the second frequency difference information, the fourth frequency difference information, the second time difference information and the fourth time difference information as described below.

[0451] S1002, same as S402.

[0452] It is understandable that there are no restrictions on the order of S1001 and S1002; S1001 can be performed before, after, or simultaneously with S1002.

[0453] S1003-S1011 are the same as S403-S411 respectively.

[0454] S1012-S1013 are the same as S708-S709 respectively.

[0455] S1014, the second access network device determines a difference between a time when the third access network device transmits the third reference signal and a time when the second access network device transmits the second reference signal.

[0456] Optionally, the second access network device determines the time when the third access network device transmits the third reference signal, and then determines the difference between the time when the third access network device transmits the third reference signal and the time when the second access network device transmits the second reference signal. Optionally, the second access network device determines the time when the third access network device transmits the third reference signal, including: the second access network device can perform correlation operation on a local third reference signal sequence and a received reference signal sequence to determine the time when the third reference signal is received, the second access network device determines the transmission time of the third reference signal according to the distance between the third access network device and the second access network device and the transmission speed of the third reference signal, and determines the time when the third access network device transmits the third reference signal according to the time when the third reference signal is received and the transmission time of the third reference signal.

[0457] S1015, the second access network device sends fourth time difference value information to the LMF unit, the fourth time difference value information being used to indicate the difference between the time when the third access network device transmits the third reference signal and the time when the second access network device transmits the second reference signal.

[0458] It should be noted that the second access network device can simultaneously execute at least two of S1009, S1011, S1013 and S1015, or can execute S1009, S1011, S1013 and S1015 respectively.

[0459] Optionally, in response to the third information, the second access network device can execute at least two of S1009, S1011, S1013 and S1014. That is, the second access network device can carry at least two of the second frequency difference value information, the fourth frequency difference value information, the second time difference value information or the fourth time difference value information in the response message of the third information.

[0460] S1016-S1019 are the same as S412-S415 respectively.

[0461] S1020-S1021 are the same as S712-S713 respectively.

[0462] S1022, the terminal device determines the difference between the time when the terminal device receives the third reference signal in S1007 and the time when the terminal device receives the second reference signal in S1006.

[0463] Specifically, the terminal device can record the time instant at which the third reference signal is received, and record the time instant at which the second reference signal is received, and obtain the difference between the time instant at which the terminal device receives the third reference signal in S1007 and the time instant at which the terminal device receives the second reference signal in S1006.

[0464] Since the distance from the third access network device to the terminal device is different from the distance from the second access network device to the terminal device, the duration of transmitting the third reference signal is different from the duration of transmitting the second reference signal, and therefore the difference between the time instant at which the terminal device receives the third reference signal in S1007 and the time instant at which the terminal device receives the second reference signal in S1006 can represent the difference between the distance from the third access network device to the terminal device and the distance from the second access network device to the terminal device.

[0465] It should be noted that S1022 is after S1006 and S1007, and S1022 has no limitation on the order of other steps.

[0466] S1023, the terminal device sends third time difference value information to the LMF unit, and the LMF unit receives the third time difference value information from the terminal device, and the third time difference value information is used to indicate the difference between the time instant at which the terminal device receives the third reference signal in S1007 and the time instant at which the terminal device receives the second reference signal in S1006.

[0467] It should be noted that the terminal device can simultaneously perform at least two of S1017, S1019, S1021 and S1023, or can perform S1017, S1019, S1021 and S1023 respectively.

[0468] Optionally, in response to the second information, the second access network device can perform at least two of S1017, S1019, S1021 and S1023. That is, the second access network device can carry at least two of the first frequency difference value information, the third frequency difference value information, the first time difference value information or the third time difference value information in the response message of the second information.

[0469] S1025, the LMF unit determines the position information of the terminal device and the motion speed information of the terminal device according to at least one of the first frequency difference value information, the second frequency difference value information, the third frequency difference value information, the fourth frequency difference value information, the first time difference value information, the second time difference value information, the third time difference value information or the fourth time difference value information.

[0470] Optionally, S1025 includes that the LMF unit can obtain the position information and the motion speed information of the terminal device by performing mathematical operations on the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information, the first time difference information, the second time difference information, the third time difference information, or the fourth time difference information.

[0471] Optionally, S1025 includes that the LMF unit determines the position information and the motion speed information of the terminal device according to at least one of the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information, the first time difference information, the second time difference information, the third time difference information, the fourth time difference information, the wavelength at which the first access network device transmits the first reference signal, the wavelength at which the second access network device transmits the second reference signal, or the wavelength at which the third access network device transmits the third reference signal.

[0472] Optionally, the wavelength at which the first access network device transmits the first reference signal is related to the first frequency, for example, the wavelength at which the first access network device transmits the first reference signal is equal to the speed of light divided by the first frequency. That is, the first frequency is configured by the LMF unit, and thus the LMF unit can determine the wavelength at which the first access network device transmits the first reference signal according to the speed of light and the first frequency.

[0473] Optionally, the wavelength at which the second access network device transmits the second reference signal is related to the second frequency, for example, the wavelength at which the second access network device transmits the second reference signal is equal to the speed of light divided by the second frequency. That is, the second frequency is configured by the LMF unit, and thus the LMF unit can determine the wavelength at which the second access network device transmits the second reference signal according to the speed of light and the second frequency.

[0474] Optionally, the wavelength at which the third access network device transmits the third reference signal is related to the third frequency, for example, the wavelength at which the third access network device transmits the third reference signal is equal to the speed of light divided by the third frequency. That is, the third frequency is configured by the LMF unit, and thus the LMF unit can determine the wavelength at which the third access network device transmits the third reference signal according to the speed of light and the third frequency.

[0475] Optionally, the LMF unit determines the position information and the motion speed information of the terminal device according to at least one of the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information, the first time difference information, the second time difference information, the third time difference information, the fourth time difference information, the wavelength at which the first access network device transmits the first reference signal, the wavelength at which the second access network device transmits the second reference signal, or the wavelength at which the third access network device transmits the third reference signal, including: the LMF unit determines the position information and the motion speed information of the terminal device according to at least one of the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information, the first time difference information, the second time difference information, the third time difference information, the fourth time difference information, the wavelength at which the first access network device transmits the first reference signal, the wavelength at which the second access network device transmits the second reference signal, the wavelength at which the third access network device transmits the third reference signal, the coordinates of the first access network device, the coordinates of the second access network device, or the coordinates of the third access network device.

[0476] Optionally, the LMF unit can know the coordinates of the first access network device, the coordinates of the second access network device, or the coordinates of the third access network device in advance. For example, the first access network device can report the coordinates of the first access network device to the LMF unit, for another example, the second access network device can report the coordinates of the second access network device to the LMF unit, and for another example, the third access network device can report the coordinates of the third access network device to the LMF unit.

[0477] Optionally, S1025 includes: the LMF unit determines the position information and the motion speed information of the terminal device according to at least one of the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information, the first time difference information, the second time difference information, the third time difference information, the fourth time difference information, the first frequency, the second frequency, or the third frequency.

[0478] Optionally, the LMF unit determines the location information and motion speed information of the terminal device based on at least one of the following: first frequency difference information, second frequency difference information, third frequency difference information, fourth frequency difference information, first time difference information, second time difference information, third time difference information, fourth time difference information, first frequency, second frequency, or third frequency. This includes: the LMF unit determines the location information and motion speed information of the terminal device based on at least one of the following: first frequency difference information, second frequency difference information, third frequency difference information, fourth frequency difference information, first time difference information, second time difference information, third time difference information, fourth time difference information, first frequency, second frequency, third frequency, coordinates of the first access network device, coordinates of the second access network device, or coordinates of the third access network device.

[0479] Optionally, the location information of the terminal device is used to indicate the coordinates of the terminal device.

[0480] Optionally, the motion speed information of the terminal device is used to indicate the magnitude and direction of the motion speed of the terminal device.

[0481] It is understood that, for ease of description, S1008, S1010, S1012, and S1014 in the above method 1000 are executed by the second access network device. Optionally, at least one of S1008, S1010, S1012, or S1014 may be executed by another access network device different from the second access network device. For example, the first access network device may execute S1008 and send second frequency difference information to the LMF unit to indicate the difference determined in S1008; or, the first access network device may execute S1012 and send second time difference information to the LMF unit to indicate the difference determined in S1012. As another example, the third access network device may execute S1010 and send fourth frequency difference information to the LMF unit to indicate the difference determined in S1010; or, the third access network device may execute S1014 and send fourth time difference information to the LMF unit to indicate the difference determined in S1014.

[0482] To better illustrate method 1000, the following will combine... Figure 5 For example, the terminal device in method 1000 can be... Figure 5 The UE shown; the first access network device in method 1000 is Figure 5 The first frequency in method 1000 for TRP1 is Figure 5 F in TRP1,TX The second access network device in method 1000 is Figure 5 The second frequency in TRP2 shown in method 1000 is Figure 5 F inTRP2,TX The third access network device in method 1000 is Figure 5 The third frequency in method 1000, TRP3, is... Figure 5 F in TRP3,TX .

[0483] a)TRP1 with F TRP1,TX Send the first reference signal (corresponding to S1005, i.e., F) TRP1,TX (Theoretical frequency), TRP2 with F TRP2,TX Send the second reference signal (corresponding to S1006, i.e., F) TRP2,TX (Theoretical frequency), TRP3 uses F TRP3,TX Send the third reference signal (corresponding to S1007, i.e., F) TRP3,TX (Theoretical frequency).

[0484] Among them, the LMF unit is configured with the first access network device in F TRP1,TX Sending the first reference signal, the second access network device uses F TRP1,TX Sending a second reference signal, the third access network device uses F TRP3,TX Send a third reference signal. However, due to limitations in the hardware of the first, second, or third access network device, the actual frequency at which the first access network device sends the first reference signal may not be F. TRP1,TX Instead, it is F′ TRP1,TX The frequency at which the second access network device actually transmits the second reference signal is not F. TRP2,TX Instead, it is F′ TRP2,TX The frequency at which the third access network device actually transmits the third reference signal is not F. TRP3,TX Instead, it is F′ TRP3,TX But F′ TRP1,TX F′ TRP2,TX and F′ TRP3,TX Both are unknown quantities that cannot be measured.

[0485] b) TRP2 determines F TRP_21 =F′ TRP2,TX -F′ TRP1,TX (Corresponds to S1008).

[0486] Among them, TRP2 can use a mixer to determine F. TRP_21 That is, TRP2 can be uncertain about F′. TRP1,TX and F′ TRP2,TX However, F′ can be determined directly. TRP2,TX -F′ TRP1,TX .

[0487] c) TRP2 determines F TRP_23 =F′ TRP2,TX -F′TRP3,TX (S1010).

[0488] wherein TRP2 can determine F TRP_23 , i.e. TRP2 can not determine F TRP3,TX and F TRP2,TX , but can determine F TRP2,TX directly. TRP3,TX .

[0489] d) TRP2 determines a difference between a time instant at which the first access network device transmits the first reference signal and a time instant at which the second access network device transmits the second reference signal (S1012).

[0490] e) TRP2 determines a difference between a time instant at which the third access network device transmits the third reference signal and a time instant at which the second access network device transmits the second reference signal (S1014).

[0491] f) TRP2 transmits, to the LMF unit, the second frequency difference information (S1009), the fourth frequency difference information (S1011), the second time difference information (S1013) and the fourth time difference information (S1015). The second frequency difference information indicates F TRP_21 , the fourth frequency difference information indicates F TRP_23 , the second time difference information indicates the fourth time difference information indicates

[0492] g) The frequency offset of the received first reference signal measured by the UE is F1, F1 is related to the actual frequency F TRP1,TX of the first reference signal transmitted by TRP1, the actual Doppler frequency offset F d1 of the first reference signal, and the clock frequency F UE of the UE, for example, F1 = F TRP1,TX + F d1 - F UE , that is, the UE can measure F1, but can not need to measure F TRP1,TX , F d1 and F UE associated with F1. F1 can also be referred to as the measured Doppler frequency offset of the received first reference signal, in other words, due to the difference between the clock frequency F UE of the UE and the actual frequency F TRP1,TX of the first reference signal transmitted by TRP1, the measured Doppler frequency offset F1 of the first reference signal is different from the actual Doppler frequency offset F d1Different, if the UE's clock frequency F UE The actual frequency F′ of the first reference signal transmitted by TRP1 TRP1,TX If they are equal, then the Doppler frequency offset F1 of the first reference signal measured by the UE is equal to the actual Doppler frequency offset F of the first reference signal. d1 Equal; the frequency offset of the received second reference signal measured by the UE is F2, where F2 is equal to the actual frequency F′ of the second reference signal transmitted by TRP2. TRP2,TX The actual Doppler frequency shift F of the second reference signal d2 and the UE's clock frequency F UE Related, for example, F2 = F′ TRP2,TX +F d2 -F UE In other words, the UE can measure F2, but does not need to measure F′ associated with F2. TRP2,TX F d2 and F UE F2 can also be referred to as the Doppler frequency offset of the received second reference signal; in other words, due to the UE's clock frequency F... UE The actual frequency F′ of the second reference signal transmitted by TRP2 TRP2,TX The difference causes the measured Doppler frequency shift F2 of the second reference signal to differ from the actual Doppler frequency shift F of the second reference signal. d2 Different, if the UE's clock frequency F UE The actual frequency F′ of the second reference signal transmitted by TRP2 TRP2,TX If they are equal, then the Doppler frequency offset F2 of the second reference signal measured by the UE is equal to the Doppler frequency offset F of the actual second reference signal. d2 They are equal. Therefore, the difference between the frequency offset of the received first reference signal measured by the UE and the frequency offset of the received second reference signal is FDOA. UE_12 =F1-F2=(F′) TRP1,TX +F d1 -F UE )-(F′ TRP2,TX +F d2 -F UE ) = F d1 -F d2 +F′ TRP1,TX -F′ TRP2,TX In other words, the difference in frequency offset between the two reference signals measured by the UE can cancel out the UE's clock frequency F. UE This reduces the impact of UE clock frequency errors. The first frequency difference information sent by the UE to the LMF unit can indicate the FDOA. UE_12(Corresponding to S1017). Alternatively, the UE can directly send F1 and F2 to the LMF unit, allowing the LMF unit to determine the FDOA. UE_12 FDOA UE_12 It can also be referred to as the FDOA of the first reference signal and the second reference signal.

[0493] h) The frequency offset of the received third reference signal measured by the UE is F3, where F3 is different from the actual frequency F′ of the third reference signal transmitted by TRP3. TRP3,TX The actual Doppler frequency shift F of the third reference signal d3 and the UE's clock frequency F UE Related, for example, F3 = F′ TRP3,TX +F d3 -F UE In other words, the UE can measure F3, but does not need to measure F′ associated with F3. TRP3,TX F d3 and F UE F3 can also be referred to as the Doppler frequency offset of the received third reference signal, in other words, due to the UE's clock frequency F UE The actual frequency F′ of the third reference signal transmitted by TRP3 TRP3,TX The difference causes the measured Doppler frequency shift F3 of the third reference signal to differ from the actual Doppler frequency shift F of the third reference signal. d3 Different, if the UE's clock frequency F UE The actual frequency F′ of the third reference signal transmitted by TRP3 TRP3,TX If they are equal, then the Doppler frequency offset F3 of the third reference signal measured by the UE is equal to the Doppler frequency offset F of the actual third reference signal. d3 They are equal. Therefore, the difference between the frequency offset of the received third reference signal measured by the UE and the frequency offset of the received second reference signal is FDOA. UE_32 =F3-F2=(F′) TRP3,TX +F d3 -F UE )-(F′ TRP2,TX +F d2 -F UE ) = F d3 -F d2 +F′ TRP3,TX -F′ TRP2,TX In other words, the difference in frequency offset between the two reference signals measured by the UE can cancel out the UE's clock frequency F. UE This reduces the error, thus lowering the UE's clock frequency F. UE The impact of errors. The third frequency difference information sent by the UE to the LMF unit can indicate FDOA.UE_32 (corresponding to S1019). Of course, the UE can also send F3 and F2 directly to the LMF unit, so that the LMF unit can determine FDOA UE_32 , where FDOA UE_32 may also be referred to as the FDOA of the third reference signal and the second reference signal.

[0494] i) the UE receives the first reference signal at time T1, the UE receives the second reference signal at time T2, and the difference between the time at which the UE receives the first reference signal and the time at which the UE receives the second reference signal is The first time difference information sent by the UE to the LMF unit can indicate (corresponding to S1021). Of course, the UE can also send T1 and T2 directly to the LMF unit, so that the LMF unit can determine

[0495] j) the UE receives the third reference signal at time T3, the UE receives the second reference signal at time T2, and the difference between the time at which the UE receives the third reference signal and the time at which the UE receives the second reference signal is The third time difference information sent by the UE to the LMF unit can indicate (corresponding to S1023). Of course, the UE can also send T3 and T2 directly to the LMF unit, so that the LMF unit can determine

[0496] k) the LMF unit establishes equations (5) and (6) based on FDOA, and establishes equations (7) and (8) based on TDOA:

[0497]

[0498]

[0499]

[0500]

[0501] where φ1 is the angle between the direction of motion of the UE and the line connecting TRP1 and the UE, (x1, y1) is the coordinate of TRP1, (x1, y1) is a known quantity, (x, y) is the coordinate of the UE, (x, y) is an unknown quantity, the magnitude of the motion speed of the UE v is an unknown quantity, and the direction of the motion speed of the UE φ UE is an unknown quantity; φ2 is the angle between the direction of motion of the UE and the line connecting TRP2 and the UE, (x2, y2) is the coordinate of TRP2, (x2, y2) is a known quantity; φ3 is the angle between the direction of motion of the UE and the line connecting TRP3 and the UE, (x3, y3) is the coordinate of TRP3, (x3, y3) is a known quantity; λ1 is the wavelength of the first reference signal sent by TRP1, λ1 = c / F TRP1,TX , λ2 is the wavelength of the second reference signal sent by TRP2, λ2 = c / F TRP2,TX , λ3 is the wavelength of the third reference signal sent by TRP3, λ3 = c / F TRP3,TX , c is the speed of light.

[0502] It should be noted that formula (5) is to offset the frequency error of the first reference signal sent by TRP1, and also to offset the frequency error of the second reference signal sent by TRP2, that is, formula (5) can reduce the influence of the actual frequency F′ TRP1,TX error of the first reference signal sent by TRP1 and reduce the influence of the actual frequency F′ TRP2,TX error of the second reference signal sent by TRP2. Similarly, formula (6) is to offset the frequency error of the third reference signal sent by TRP3, and also to offset the frequency error of the second reference signal sent by TRP2, that is, formula (6) can reduce the influence of the actual frequency F′ TRP2,TX error of the second reference signal sent by TRP2 and reduce the influence of the actual frequency F′ TRP3,TX error of the third reference signal sent by TRP3.

[0503] That is, in determining the coordinate (x, y) of the UE, the LMF unit can know the coordinate (x1, y1) of TRP1, the coordinate (x2, y2) of TRP2, and the coordinate (x3, y3) of TRP3, that is, there are four unknown quantities x, y, v and φ UE in the above four equations, so that the coordinate (x, y) of the UE, the size v of the movement speed of the UE, and the direction φ of the movement speed of the UE UE .

[0504] It should be noted that in the process of calculating the coordinate (x, y) of the UE, the size v of the movement speed of the UE, and the direction φ of the movement speed of the UE UE , the LMF unit obtains FDOA UE_12 , FDOA UE_32 , and the LMF unit obtains F TRP_21 , F TRP_23 , and and the LMF unit can obtain λ1, λ2 and λ3, and can also obtain the coordinates (x1, y1) of TRP1, the coordinates (x2, y2) of TRP2, and the coordinates (x3, y3) of TRP3. The coordinates (x, y) of the UE, the magnitude v of the motion speed of the UE, and the direction φ of the motion speed of the UE can be determined by using these known quantities UE . The derivation principles of the above formulas (5)-(8) are shown in the formulas, and in the actual operation process, the LMF unit can not need to obtain the intermediate parameters in the derivation of the formulas (5)-(8), such as the LMF unit can not need to know F′ TRP1,TX , F′ TRP2,TX , F′ TRP3,TX , F d1 , F d2 , F d3 , and F UE .

[0505] In the method of processing information described in the above method 1000, the LMF unit determines the position information of the terminal device, and in some scenarios, the terminal device can also determine the position information of the terminal device. For example, the method 1100 of processing information of the terminal device determining the position information of the terminal device is described below. Figure 11 As shown in FIG. 11, the method 1100 includes the following steps. Figure 11

[0506] S1101, same as S1001.

[0507] S1102, the LMF unit sends first information to the terminal device, and the terminal device receives the first information from the LMF unit, and the first information is used to instruct the terminal device to measure the position information of the terminal device.

[0508] Optionally, the first information is used to instruct the terminal device to measure the position information of the terminal device.

[0509] Optionally, the first information includes auxiliary measurement information. Optionally, the auxiliary measurement information includes at least one of the following: an identifier of the first access network device, an identifier of the second access network device, an identifier of the third access network device, or configuration information of a reference signal. The configuration information of the reference signal is used to indicate at least one of the following: a first frequency at which the first access network device transmits a first reference signal, a second frequency at which the second access network device transmits a second reference signal, a third frequency at which the third access network device transmits a third reference signal, fourth time information at which the first access network device transmits the first reference signal, second time information at which the second access network device transmits the second reference signal, or fifth time information at which the third access network device transmits the third reference signal.

[0510] Optionally, the auxiliary measurement information can also indicate at least one of the following: coordinates of the first access network device, coordinates of the second access network device, or coordinates of the third access network device.​

[0511] Optionally, the LMF unit can actively trigger S1102 or trigger S1102 based on the user's demand.

[0512] It can be understood that the order of S1101 and S1102 has no any limitation, S1101 can be performed before or after S1102 or simultaneously.

[0513] S1103-S1115 are the same as S1003-S1015 respectively.

[0514] S1116, the LMF unit sends at least one of the second frequency difference information, the fourth frequency difference information, the second time difference information or the fourth time difference information to the terminal device.

[0515] It can be understood that the LMF unit can send at least two of the second frequency difference information, the fourth frequency difference information, the second time difference information or the fourth time difference information simultaneously, or send the second frequency difference information, the fourth frequency difference information, the second time difference information or the fourth time difference information respectively. The order of the LMF unit sending the second frequency difference information, the fourth frequency difference information, the second time difference information or the fourth time difference information to the terminal device has no any limitation in the embodiments of the present application.

[0516] S1117 is the same as S1016.

[0517] S1118 is the same as S1018.

[0518] S1119 is the same as S1020.

[0519] S1120 is the same as S1022.

[0520] S1121, the terminal device determines the position information and the motion speed information of the terminal device according to at least one of the difference in S1117, the difference in S1118, the difference in S1119, the difference in S1120, the second frequency difference information, the fourth frequency difference information, the second time difference information or the fourth time difference information.

[0521] Wherein, the first frequency difference information indicates the difference in S1117, the third frequency difference information can indicate the difference in S1118, the first time difference information can indicate the difference in S1119, and the third time difference information can indicate the difference in S1120.

[0522] Optionally, S1121 includes that the terminal device can obtain the position information and the motion speed information of the terminal device by performing mathematical operations on the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information, the first time difference information, the second time difference information, the third time difference information, or the fourth time difference information.

[0523] Optionally, S1121 includes that the terminal device determines the position information and the motion speed information of the terminal device according to at least one of the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information, the first time difference information, the second time difference information, the third time difference information, the fourth time difference information, the wavelength at which the first access network device sends the first reference signal, the wavelength at which the second access network device sends the second reference signal, or the wavelength at which the third access network device sends the third reference signal.

[0524] Optionally, the wavelength at which the first access network device sends the first reference signal is related to the first frequency, for example, the wavelength at which the first access network device sends the first reference signal is equal to the speed of light divided by the first frequency. That is, the first frequency is configured to the terminal device by the LMF unit, and therefore, the terminal device can determine the wavelength at which the first access network device sends the first reference signal according to the speed of light and the first frequency.

[0525] Optionally, the wavelength at which the second access network device sends the second reference signal is related to the second frequency, for example, the wavelength at which the second access network device sends the second reference signal is equal to the speed of light divided by the second frequency. That is, the second frequency is configured to the terminal device by the LMF unit, and therefore, the terminal device can determine the wavelength at which the second access network device sends the second reference signal according to the speed of light and the second frequency.

[0526] Optionally, the wavelength at which the third access network device sends the third reference signal is related to the third frequency, for example, the wavelength at which the third access network device sends the third reference signal is equal to the speed of light divided by the third frequency. That is, the third frequency is configured to the terminal device by the LMF unit, and therefore, the terminal device can determine the wavelength at which the third access network device sends the third reference signal according to the speed of light and the third frequency.

[0527] Optionally, the terminal device determines the position information and the motion speed information of the terminal device according to at least one of the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information, the first time difference information, the second time difference information, the third time difference information, the fourth time difference information, the wavelength at which the first access network device sends the first reference signal, the wavelength at which the second access network device sends the second reference signal, or the wavelength at which the third access network device sends the third reference signal, including: the terminal device determines the position information and the motion speed information of the terminal device according to at least one of the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information, the first time difference information, the second time difference information, the third time difference information, the fourth time difference information, the wavelength at which the first access network device sends the first reference signal, the wavelength at which the second access network device sends the second reference signal, the wavelength at which the third access network device sends the third reference signal, the coordinates of the first access network device, the coordinates of the second access network device, or the coordinates of the third access network device.

[0528] Optionally, the terminal device can determine at least one of the coordinates of the first access network device, the coordinates of the second access network device, or the coordinates of the third access network device according to the auxiliary measurement information in S1102.

[0529] Optionally, S1121 includes: the terminal device determines the position information and the motion speed information of the terminal device according to at least one of the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information, the first time difference information, the second time difference information, the third time difference information, the fourth time difference information, the first frequency, the second frequency, or the third frequency.

[0530] Optionally, the terminal device determines the position information and the motion speed information of the terminal device according to at least one of the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information, the first time difference information, the second time difference information, the third time difference information, the fourth time difference information, the first frequency, the second frequency, or the third frequency, including: the terminal device determines the position information and the motion speed information of the terminal device according to at least one of the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information, the first time difference information, the second time difference information, the third time difference information, the fourth time difference information, the first frequency, the second frequency, the third frequency, the coordinates of the first access network device, the coordinates of the second access network device, or the coordinates of the third access network device.

[0531] Optionally, the position information of the terminal device is used to indicate the coordinates of the terminal device.

[0532] Optionally, the motion speed information of the terminal device is used to indicate a size of the motion speed of the terminal device and a direction of the motion speed of the terminal device.

[0533] It can be understood that, in the method 1100, S1108, S1110, S1112 and S1114 are executed by the second access network device for the convenience of description. Optionally, at least one of S1108, S1110, S1112 or S1114 can be executed by an access network device other than the second access network device, for example, the first access network device can execute S1108 and send the second frequency difference value information to the LMF unit to indicate the difference value determined in S1108, or the first access network device can execute S1112 and send the second time difference value information to the LMF unit to indicate the difference value determined in S1112; for another example, the third access network device can execute S1110 and send the fourth frequency difference value information to the LMF unit to indicate the difference value determined in S1110, or the third access network device can execute S1114 and send the fourth time difference value information to the LMF unit to indicate the difference value determined in S1114.

[0534] It should be noted that in the method 1000 and the method 1100, the first frequency difference value information indicates a difference between a frequency at which the terminal device receives a first reference signal sent by the first access network device and a frequency at which the terminal device receives a second reference signal sent by the second access network device; the second frequency difference value information is used to indicate a difference between a frequency at which the second access network device sends the second reference signal and a frequency at which the first access network device sends the first reference signal; the third frequency difference value information is used to indicate a difference between a frequency offset at which the terminal device receives a third reference signal sent by the third access network device and a frequency offset at which the terminal device receives the second reference signal sent by the second access network device; the fourth frequency difference value information is used to indicate a difference between a frequency at which the second access network device sends the second reference signal and a frequency at which the third access network device sends the third reference signal; the first time difference value information is used to indicate a difference between a time at which the terminal device receives the first reference signal sent by the first access network device and a time at which the terminal device receives the second reference signal sent by the second access network device; the second time difference value information is used to indicate a difference between a time at which the first access network device sends the first reference signal and a time at which the second access network device sends the second reference signal; the third time difference value information is used to indicate a difference between a time at which the terminal device receives the third reference signal sent by the third access network device and a time at which the terminal device receives the second reference signal sent by the second access network device; and the fourth time difference value information is used to indicate a difference between a time at which the third access network device sends the third reference signal and a time at which the second access network device sends the second reference signal.Alternatively, the first frequency difference information indicates the difference between the frequency at which the terminal device receives the second reference signal sent by the second access network device and the frequency at which the terminal device receives the first reference signal sent by the first access network device; the second frequency difference information indicates the difference between the frequency at which the first reference signal sent by the first access network device and the frequency at which the second reference signal sent by the second access network device is transmitted; the third frequency difference information indicates the difference between the frequency at which the terminal device receives the second reference signal sent by the second access network device and the frequency offset at which the terminal device receives the third reference signal sent by the third access network device; the fourth frequency difference information indicates the difference between the frequency at which the third reference signal sent by the third access network device and the frequency at which the second reference signal sent by the second access network device is transmitted; and the first time difference information is used for... The time difference information is used to indicate the difference between the time when the terminal device receives the second reference signal sent by the second access network device and the time when the terminal device receives the first reference signal sent by the first access network device; the second time difference information is used to indicate the difference between the time when the second access network device sends the second reference signal and the time when the first access network device sends the first reference signal; the third time difference information is used to indicate the difference between the time when the terminal device receives the second reference signal sent by the second access network device and the time when the terminal device receives the third reference signal sent by the third access network device; the fourth time difference information is used to indicate the difference between the time when the second access network device sends the second reference signal and the time when the third access network device sends the third reference signal; the specific calculation principle is similar to the above method, and will not be described in detail to avoid redundancy.

[0535] It should be noted that the above Figure 4- Figure 11 In the embodiments shown, the examples are described with two or three access network devices. Based on the principles described above, there can also be more than three access network devices. The specific calculation principle is similar to the principle described above, and will not be described in detail to avoid redundancy.

[0536] The above Figure 4- Figure 11 In the embodiments, applicable Figure 1 In the scenario shown, where there are multiple access network devices, the following will be combined with... Figure 12 Description in Figure 2 The information processing method 1200 shown in the scenario is a method for the second terminal device to determine the location information of the second terminal device.

[0537] S1201, the second terminal device sends fourth information to the first terminal device, the fourth information being used to indicate that the second terminal device needs to measure the location information of the first terminal device.

[0538] Optionally, the fourth information can comprise measurement assistance information, the measurement assistance information being used to indicate at least one of a first frequency at which the second terminal device transmits the first reference signal, a second frequency at which the second terminal device transmits the second reference signal, or a third frequency at which the second terminal device transmits the third reference signal. Optionally, the measurement assistance information can also be used to indicate a time at which the second terminal device transmits the first reference signal, a time at which the second terminal device transmits the second reference signal, or a time at which the second terminal device transmits the third reference signal.

[0539] Optionally, the first frequency at which the second terminal device transmits the first reference signal, the second frequency at which the second terminal device transmits the second reference signal, and the third frequency at which the second terminal device transmits the third reference signal are the same.

[0540] Optionally, the second terminal device and the first terminal device are in a relative motion state.

[0541] Optionally, the second terminal device and the first terminal device being in a relative motion state can be understood as: the first terminal device is in a static state, and the second terminal device is in a motion state; or the first terminal device is in a motion state, and the second terminal device is in a static state; or the first terminal device and the second terminal device are both in a motion state, but the motion speed information of the first terminal device and the second terminal device is different, for example, the motion speed of the first terminal device and the second terminal device is different in size, and / or the motion speed of the first terminal device and the second terminal device is different in direction.

[0542] For example, the second terminal device is a vehicle, when it needs to change lanes, the vehicle can trigger the vehicle to transmit the fourth information to another nearby vehicle (the vehicle is the first terminal device) to measure the relative position information between the two vehicles.

[0543] It should be noted that the second terminal device transmitting the fourth information to the first terminal device can be transmitting the fourth information at a position different from the first position, the second position, and the third position, or the second terminal device transmitting the fourth information to the first terminal device can be transmitting the fourth information at one of the first position, the second position, and the third position, and the embodiments of the present application do not limit the position at which the second terminal device transmits the fourth information.

[0544] S1202, the second terminal device transmits the first reference signal at the first frequency at the first position.

[0545] Optionally, if the measurement assistance information indicates the time at which the second terminal device transmits the first reference signal, the second terminal device can determine the first position according to the time at which the first reference signal is transmitted and the motion speed of the second terminal device.

[0546] It should be noted that theoretically the second terminal device transmits the first reference signal at the first frequency, but the actual frequency at which the second terminal device transmits the first reference signal can not be the first frequency due to the limitation of the hardware condition of the second terminal device. That is, the first frequency is the theoretical frequency at which the second terminal device transmits the first reference signal, and can not be the actual frequency. Of course, it is also possible that the hardware condition of the second terminal device is good, and the theoretical frequency is equal to the actual frequency, that is, the actual frequency at which the second terminal device transmits the first reference signal can also be the first frequency.

[0547] S1203, the second terminal device transmits the second reference signal at the second frequency at the second position.

[0548] Optionally, if the measurement assistance information indicates the time at which the second terminal device transmits the second reference signal, the second terminal device can determine the second position according to the time at which the second reference signal is transmitted and the motion speed of the second terminal device.

[0549] It should be noted that theoretically the second terminal device transmits the second reference signal at the second frequency, but the actual frequency at which the second terminal device transmits the second reference signal can not be the second frequency due to the limitation of the hardware condition of the second terminal device. That is, the second frequency is the theoretical frequency at which the second terminal device transmits the second reference signal, and can not be the actual frequency. Of course, it is also possible that the hardware condition of the second terminal device is good, and the theoretical frequency is equal to the actual frequency, that is, the actual frequency at which the second terminal device transmits the second reference signal can also be the second frequency.

[0550] S1204, the second terminal device transmits the third reference signal at the third frequency at the third position.

[0551] Optionally, if the measurement assistance information indicates the time at which the second terminal device transmits the third reference signal, the second terminal device can determine the third position according to the time at which the third reference signal is transmitted and the motion speed of the second terminal device.

[0552] It should be noted that theoretically the second terminal device transmits the third reference signal at the third frequency, but the actual frequency at which the second terminal device transmits the third reference signal can not be the third frequency due to the limitation of the hardware condition of the second terminal device. That is, the third frequency is the theoretical frequency at which the second terminal device transmits the third reference signal, and can not be the actual frequency. Of course, it is also possible that the hardware condition of the second terminal device is good, and the theoretical frequency is equal to the actual frequency, that is, the actual frequency at which the second terminal device transmits the third reference signal can also be the third frequency.

[0553] It can be understood that the first frequency at which the second terminal device transmits the first reference signal in S1202, the second frequency at which the second terminal device transmits the second reference signal in S1203, and the third frequency at which the second terminal device transmits the third reference signal in S1204 are the same.

[0554] Optionally, at least two of the first frequency at which the second terminal device transmits the first reference signal in S1202, the second frequency at which the second terminal device transmits the second reference signal in S1203, and the third frequency at which the second terminal device transmits the third reference signal in S1204 are different.

[0555] Optionally, the first position, the second position, and the third position can be the same position. In the case where the first position, the second position, and the third position are the same position, the relative position of the second terminal device to the first terminal device when transmitting the first reference signal is the first relative position, the relative position of the second terminal device to the first terminal device when transmitting the second reference signal is the second relative position, and the relative position of the second terminal device to the first terminal device when transmitting the third reference signal is the third relative position, the first relative position, the second relative position, and the third relative position are different from each other, that is, at this time, the first terminal device can be in a motion state, the second terminal device can be in a motion state, or both the first terminal device and the second terminal device can be in a motion state.

[0556] Optionally, the first position, the second position, and the third position can be different positions.

[0557] Optionally, the second terminal device can determine the first position, the second position, and the third position according to its own implementation. For example, the second terminal device can determine the position at which the first reference signal is transmitted as the first position, the position of the second terminal device after moving a preset distance as the second position, and transmit the second reference signal at the second position; the position of the second terminal device after moving a preset distance again after transmitting the second reference signal as the third position, and transmit the third reference signal at the third position. For another example, the second terminal device indicates the time at which the second terminal device transmits the first reference signal, the time at which the second terminal device transmits the second reference signal, and the time at which the second terminal device transmits the third reference signal in the measurement assistance information. With the movement of the second terminal device, the position of the second terminal device at the time of transmitting the first reference signal is the first position, the position of the second terminal device at the time of transmitting the second reference signal is the second position, and the position of the second terminal device at the time of transmitting the third reference signal is the third position.

[0558] Optionally, the coordinates of the first position, the second position, and the third position can be understood as unknown. Here, the use of three different positions indicates that the second terminal device transmits the three reference signals at the three different positions respectively.

[0559] In other words, the second terminal device sends reference signals from different locations, which can be understood as reference signals sent from different anchor points. In this way, the location information of the first terminal device can be determined through multiple anchor points.

[0560] S1205, the first terminal device determines the difference between the frequency offset of the first reference signal received by the first terminal device and the frequency offset of the second reference signal received by the first terminal device.

[0561] Optionally, the first terminal device can listen to the first reference signal based on the first frequency at which the second terminal device transmits the first reference signal, as indicated by auxiliary measurement information, thereby determining the frequency offset of the received first reference signal. Optionally, the frequency offset of the first reference signal received by the first terminal device is related to the frequency at which the second terminal device transmits the first reference signal.

[0562] Optionally, the first terminal device can listen to the second reference signal based on the second frequency at which the second terminal device transmits the second reference signal, as indicated by auxiliary measurement information, thereby determining the frequency offset of the received second reference signal. Optionally, the frequency offset of the second reference signal received by the first terminal device is related to the frequency at which the second terminal device transmits the second reference signal.

[0563] Optionally, the first terminal device can determine the frequency offset of the first reference signal using a mixer. One input of the mixer is a locally generated first reference signal at a first frequency, and the other input is the received first reference signal. The output of the mixer is a signal with a frequency offset from the first reference signal. Therefore, the frequency offset of the first reference signal can be obtained by measuring the frequency of the output signal of the mixer.

[0564] Optionally, the first terminal device can determine the frequency offset of the second reference signal using a mixer. One input of the mixer is a locally generated second reference signal at a second frequency, and the other input is the received second reference signal. The output of the mixer is a signal with a frequency offset from the second reference signal. Therefore, the frequency offset of the second reference signal can be obtained by measuring the frequency of the output signal of the mixer.

[0565] It should be noted that S1205 follows S1202 and S1203, and there are no restrictions on the order of S1205 with other steps.

[0566] S1206, the first terminal device sends fifth frequency difference information to the second terminal device. The fifth frequency difference information is used to indicate the difference between the frequency offset of the first terminal device receiving the first reference signal and the frequency offset of the first terminal device receiving the second reference signal.

[0567] Alternatively to S1206, the first terminal device can send to the second terminal device the frequency offset of receiving the first reference signal and the frequency offset of receiving the second reference signal, so that the second terminal device can determine the difference between the frequency offset of receiving the first reference signal and the frequency offset of receiving the second reference signal.

[0568] Optionally, the fifth frequency difference information is used to indicate the difference between the frequency of receiving the first reference signal in S1202 and the frequency of receiving the second reference signal in S1203. The difference between the frequency of receiving the first reference signal in S1202 and the frequency of receiving the second reference signal in S1203 is measured by the first terminal device.

[0569] It should be noted that the position of the second terminal device receiving the fifth frequency difference information can be other positions different from the first position, the second position and the third position, or the position of the second terminal device receiving the fifth frequency difference information can be one of the first position, the second position and the third position, and the embodiments of the present application do not limit the position of the second terminal device receiving the fifth frequency difference information.

[0570] S1207, the first terminal device determines the difference between the frequency offset of receiving the third reference signal by the first terminal device and the frequency offset of receiving the second reference signal by the first terminal device.

[0571] Optionally, the terminal device can listen to the third reference signal based on the third frequency of the second terminal device sending the third reference signal indicated by the auxiliary measurement information, so as to determine the frequency offset of receiving the third reference signal. Optionally, the frequency offset of receiving the third reference signal by the first terminal device is related to the frequency of the second terminal device sending the third reference signal.

[0572] Optionally, the terminal device can listen to the second reference signal based on the second frequency of the second terminal device sending the second reference signal indicated by the auxiliary measurement information, so as to determine the frequency offset of receiving the second reference signal. Optionally, the frequency offset of receiving the second reference signal is related to the frequency of the second terminal device sending the second reference signal.

[0573] Optionally, the first terminal device can determine the frequency offset of the third reference signal through a frequency mixer, one input of the frequency mixer is the third reference signal of the third frequency generated locally, the other input of the frequency mixer is the received third reference signal, and the output of the frequency mixer is a signal with the frequency offset of the frequency of the third reference signal. Thus, by measuring the frequency of the signal output by the frequency mixer, the frequency offset of the third reference signal can be obtained.

[0574] S1208, the first terminal device sends sixth frequency difference information to the second terminal device, the sixth frequency difference information being used to indicate a difference between a frequency offset of receiving the third reference signal by the first terminal device and a frequency offset of receiving the second reference signal by the first terminal device.

[0575] Alternatively to S1208, the first terminal device can send the frequency offset of receiving the third reference signal and the frequency offset of receiving the second reference signal to the second terminal device, so that the second terminal device can determine the difference between the frequency offset of receiving the third reference signal and the frequency offset of receiving the second reference signal.

[0576] Optionally, the sixth frequency difference information is used to indicate a difference between a frequency of receiving the third reference signal in S1204 by the terminal device and a frequency of receiving the second reference signal in S1203. The difference between the frequency of receiving the third reference signal in S1204 and the frequency of receiving the second reference signal in S1203 is measured by the first terminal device.

[0577] It should be noted that the position of the second terminal device receiving the sixth frequency difference information can be other positions different from the first position, the second position and the third position, or the position of the second terminal device receiving the sixth frequency difference information can be one of the first position, the second position and the third position, and the embodiments of the present application do not limit the position of the second terminal device receiving the sixth frequency difference information.

[0578] S1209, the first terminal device sends the motion speed information of the first terminal device to the second terminal device, and the second terminal device receives the motion speed information of the first terminal device from the first terminal device.

[0579] Optionally, the motion speed information of the first terminal device includes first motion speed information of the first terminal device when receiving the first reference signal, second motion speed information of the first terminal device when receiving the second reference signal, and third motion speed information of the first terminal device when receiving the third reference signal.

[0580] Optionally, the first motion speed information is used to indicate a size of the motion speed and / or a direction of the motion speed of the first terminal device when receiving the first reference signal.

[0581] Optionally, the second motion speed information is used to indicate a size of the motion speed and / or a direction of the motion speed of the first terminal device when receiving the second reference signal.

[0582] Optionally, the third motion speed information is used to indicate a size of the motion speed and / or a direction of the motion speed of the first terminal device when receiving the third reference signal.

[0583] Optionally, the first terminal device can report first timestamp information corresponding to the first motion speed information when reporting the first motion speed information. Optionally, the first timestamp information is used to indicate a first time at which the first terminal device receives the first reference signal.

[0584] Optionally, the first terminal device can report second timestamp information corresponding to the second motion speed information when reporting the second motion speed information. Optionally, the second timestamp information is used to indicate a second time at which the first terminal device receives the second reference signal.

[0585] Optionally, the first terminal device can report third timestamp information corresponding to the third motion speed information when reporting the third motion speed information. Optionally, the third timestamp information is used to indicate a third time at which the first terminal device receives the third reference signal.

[0586] It can be understood that the size of the motion speed at which the first terminal device receives the first reference signal, the size of the motion speed at which the first terminal device receives the second reference signal, and the size of the motion speed at which the first terminal device receives the third reference signal can be the same or different.

[0587] It can also be understood that the direction of the motion speed at which the first terminal device receives the first reference signal, the direction of the motion speed at which the first terminal device receives the second reference signal, and the direction of the motion speed at which the first terminal device receives the third reference signal can be the same or different.

[0588] It should be noted that the position of the second terminal device when receiving the motion speed information of the first terminal device can be at other positions different from the first position, the second position, and the third position, or the position of the second terminal device when receiving the motion speed information of the first terminal device can be at one of the first position, the second position, and the third position. The embodiments of the present application do not limit the position of the second terminal device when receiving the motion speed information of the first terminal device.

[0589] Optionally, the first terminal device can simultaneously perform S1206, S1208, and S1209, or can separately perform S1206, S1208, and S1209. When the first terminal device separately performs S1206, S1208, and S1209, the order of S1206, S1208, and S1209 is not limited in any way.

[0590] S1210, the second terminal device determines position information of the second terminal device according to at least one of the fifth frequency difference value information, the sixth frequency difference value information, the motion speed information of the first terminal device, or the motion speed information of the second terminal device.

[0591] Optionally, the motion speed information of the second terminal device comprises fourth motion speed information of the second terminal device when the first reference signal is sent, fifth motion speed information of the second terminal device when the second reference signal is sent, and sixth motion speed information of the second terminal device when the third reference signal is sent.

[0592] Optionally, the fourth motion speed information is used to indicate the magnitude of the motion speed of the second terminal device when the first reference signal is sent and / or the direction of the motion speed.

[0593] Optionally, the fifth motion speed information is used to indicate the magnitude of the motion speed of the second terminal device when the second reference signal is sent and / or the direction of the motion speed.

[0594] Optionally, the sixth motion speed information is used to indicate the magnitude of the motion speed of the second terminal device when the third reference signal is sent and / or the direction of the motion speed.

[0595] It can be understood that the magnitude of the motion speed of the second terminal device when the first reference signal is sent, the magnitude of the motion speed of the second terminal device when the second reference signal is sent, and the magnitude of the motion speed of the second terminal device when the third reference signal is sent can be the same or different.

[0596] It can also be understood that the direction of the motion speed of the second terminal device when the first reference signal is sent, the direction of the motion speed of the second terminal device when the second reference signal is sent, and the direction of the motion speed of the second terminal device when the third reference signal is sent can be the same or different.

[0597] Optionally, if the first terminal device also reports first timestamp information corresponding to the first motion speed information, second timestamp information corresponding to the second motion speed information, and third timestamp information corresponding to the third motion speed information, the second terminal device determines that the first motion speed information corresponds to the fourth motion speed information according to the first timestamp information, and performs operation on the magnitude of the motion speed of the first terminal device indicated by the first motion speed information and the magnitude of the motion speed of the second terminal device indicated by the fourth motion speed information; the second terminal device determines that the second motion speed information corresponds to the fifth motion speed information according to the second timestamp information, and performs operation on the magnitude of the motion speed of the first terminal device indicated by the second motion speed information and the magnitude of the motion speed of the second terminal device indicated by the fifth motion speed information; the second terminal device determines that the third motion speed information corresponds to the sixth motion speed information according to the third timestamp information, and performs operation on the magnitude of the motion speed of the first terminal device indicated by the third motion speed information and the magnitude of the motion speed of the second terminal device indicated by the sixth motion speed information. In other words, the first timestamp information, the second timestamp information, and the third timestamp information reported by the first terminal device are used by the second terminal device to determine the motion speed information of the corresponding first terminal device.

[0598] Optionally, S1210 includes: determining, by the second terminal device, the position information of the second terminal device according to at least one of the fifth frequency difference information, the sixth frequency difference information, the motion speed information of the first terminal device, the motion speed information of the second terminal device, the wavelength at which the second terminal device transmits the first reference signal, the wavelength at which the second terminal device transmits the second reference signal, or the wavelength at which the second terminal device transmits the third reference signal.

[0599] Optionally, the wavelength at which the second terminal device transmits the first reference signal is related to the first frequency, for example, the wavelength at which the second terminal device transmits the first reference signal is equal to the speed of light divided by the first frequency. That is, the first frequency is configured for the second terminal device, and thus the second terminal device can determine the wavelength at which the second terminal device transmits the first reference signal according to the speed of light and the first frequency.

[0600] Optionally, the wavelength at which the second terminal device transmits the second reference signal is related to the second frequency, for example, the wavelength at which the second terminal device transmits the second reference signal is equal to the speed of light divided by the second frequency. That is, the second frequency is configured for the second terminal device, and thus the second terminal device can determine the wavelength at which the second terminal device transmits the second reference signal according to the speed of light and the second frequency.

[0601] Optionally, the wavelength at which the second terminal device transmits the third reference signal is related to the third frequency, for example, the wavelength at which the second terminal device transmits the third reference signal is equal to the speed of light divided by the third frequency. That is, the third frequency is configured for the second terminal device, and thus the second terminal device can determine the wavelength at which the second terminal device transmits the third reference signal according to the speed of light and the third frequency.

[0602] Optionally, the second terminal device determines the position information of the second terminal device according to at least one of the fifth frequency difference information, the sixth frequency difference information, the motion speed information of the first terminal device, the motion speed information of the second terminal device, the wavelength at which the second terminal device transmits the first reference signal, the wavelength at which the second terminal device transmits the second reference signal, or the wavelength at which the second terminal device transmits the third reference signal, includes: the second terminal device determines the position information of the second terminal device according to at least one of the fifth frequency difference information, the sixth frequency difference information, the motion speed information of the first terminal device, the motion speed information of the second terminal device, the wavelength at which the second terminal device transmits the first reference signal, the wavelength at which the second terminal device transmits the second reference signal, the wavelength at which the second terminal device transmits the third reference signal, a first distance of the second terminal device moving between a time at which the second terminal device transmits the second reference signal and a time at which the second terminal device transmits the first reference signal, or a second distance of the second terminal device moving between a time at which the second terminal device transmits the third reference signal and a time at which the second terminal device transmits the second reference signal.

[0603] Optionally, if the first frequency, the second frequency and the third frequency are the same, S1210 can be executed.

[0604] Optionally, if the first frequency, the second frequency and the third frequency are different, S1210 comprises: determining, by the second terminal device, the position information of the second terminal device according to at least one of the fifth frequency difference information, the sixth frequency difference information, the motion speed information of the first terminal device, the motion speed information of the second terminal device, the first frequency, the second frequency or the third frequency.

[0605] Optionally, the position information of the second terminal device is used to indicate the coordinate of the second terminal device relative to the first terminal device.

[0606] Optionally, the coordinate of the second terminal device relative to the first terminal device can be understood as the coordinate of the second terminal device with the coordinate of the first terminal device as the coordinate origin.

[0607] Alternatively, the position information of the second terminal device determined in the above S1210 can be replaced by the position information of the first terminal device. Optionally, the position information of the first terminal device is used to indicate the coordinate of the first terminal device relative to the second terminal device. Optionally, the coordinate of the first terminal device relative to the second terminal device can be understood as the coordinate of the first terminal device with the coordinate of the second terminal device as the coordinate origin.

[0608] That is, if the second terminal device can calculate the coordinate of the second terminal device relative to the first terminal device, the coordinate of the first terminal device relative to the second terminal device can be calculated according to the coordinate of the second terminal device relative to the first terminal device, or if the second terminal device can calculate the coordinate of the first terminal device relative to the second terminal device, the coordinate of the second terminal device relative to the first terminal device can be calculated according to the coordinate of the first terminal device relative to the second terminal device.

[0609] In order to better illustrate the method 1200, the following will be described by taking Figure 13 as an example, the first terminal device in the method 1200 can be Figure 13 UE1 shown in FIG. 1, the second terminal device in the method 1200 can be Figure 13 UE2 in FIG. 1; the first frequency, the second frequency and the third frequency in the method 1200 are the same, all being F UE2,TX , Figure 13 In FIG. 1, the direction of the motion speed of UE1 is defined as the x axis, that is, the included angle between the direction of the motion speed of UE1 and the x axis is zero, and it is assumed that the direction of the motion speed of UE2 is also along the x axis, that is, the included angle between the motion direction of UE1 and UE2 and the x axis is zero.

[0610] a) UE2 in the first position with F UE2,TX Send the first reference signal (corresponding to S1202, i.e., F) UE2,TX (Theoretical frequency), TRP2 with F UE2,TX Send the second reference signal (corresponding to S1203, i.e., F) UE2,TX (Theoretical frequency), TRP3 uses F UE2,TX Send the third reference signal (corresponding to S1204, i.e., F) UE2,TX (Theoretical frequency).

[0611] Among them, UE2 uses F UE2,TX Three reference signals are sent separately, but due to limitations in UE2's hardware, the actual frequency at which UE2 sends the first reference signal may not be F. UE2,TX Instead, it is F′ UE2,TX The frequency at which UE2 actually transmits the second reference signal is not F. UE2,TX Instead, it is F′ UE2,TX The frequency at which UE2 actually transmits the third reference signal is not F. UE2,TX Instead, it is F′ UE2,TX But F′ UE2,TX It is an unknown quantity that cannot be measured.

[0612] b) The frequency offset of the received first reference signal measured by UE1 is F1, where F1 is different from the actual frequency F′ of the first reference signal transmitted by UE2. UE2,TX The actual Doppler frequency shift F of the first reference signal d1 and the clock frequency F of UE1 UE1 Related, for example, F1 = F′ UE2,TX +F d1 -F UE1 In other words, the UE can measure F1, but does not need to measure F′, which is related to F1. UE2,TX F d1 and F UE F1 can also be referred to as the Doppler frequency offset of the received first reference signal; in other words, due to the clock frequency F of UE1. UE1 The actual frequency F′ of the first reference signal transmitted by UE2 UE2,TX The difference causes the measured Doppler frequency shift F1 of the first reference signal to differ from the actual Doppler frequency shift F of the first reference signal. d1 Different, if the clock frequency F of UE1 is different UE1 The actual frequency F′ of the first reference signal transmitted by UE2 UE2,TX If they are equal, then the Doppler frequency offset F1 of the first reference signal measured by UE1 is equal to the actual Doppler frequency offset F of the first reference signal. d1Equal; the frequency offset of the received second reference signal measured by UE1 is F2, where F2 is equal to the actual frequency F′ of the second reference signal transmitted by UE2. UE2,TX The actual Doppler frequency shift F of the second reference signal d2 and the clock frequency F of UE1 UE1 Related, for example, F2 = F′ UE2,TX +F d2 -F UE1 In other words, UE1 can measure F2, but does not need to measure F′, which is related to F2. UE2,TX F d2 and F UE1 F2 can also be referred to as the Doppler frequency offset of the received second reference signal, in other words, due to the clock frequency F of UE1. UE1 and the actual frequency F′ of the second reference signal transmitted by UE2 UE2,TX The difference causes the measured Doppler frequency shift F2 of the second reference signal to differ from the actual Doppler frequency shift F of the second reference signal. d2 Different, if the clock frequency F of UE1 is different UE1 The actual frequency F′ of the second reference signal transmitted by TRP2 UE2,TX If they are equal, then the Doppler frequency offset F2 of the second reference signal measured by the UE is equal to the Doppler frequency offset F of the actual second reference signal. d2 They are equal. Therefore, the difference between the frequency offset of the received first reference signal measured by UE1 and the frequency offset of the received second reference signal measured by UE1 is FDOA. UE_12 =F1-F2=(F′) UE2,TX +F d1 -F UE1 )-(F′ UE2,TX +F d2 -F UE1 ) = F d1 -F d2 In other words, the difference in frequency offset between the two reference signals measured by UE1 can eliminate the clock frequency F of UE1. UE1 The error can also eliminate the actual frequency F′ of the first and second reference signals transmitted by UE2. UE2,TX This reduces the error, thus lowering the UE1 clock frequency F. UE1 The influence of errors can also reduce the actual frequency F′ of the first and second reference signals transmitted by UE2. UE2,TX The impact of errors. The fifth frequency difference information sent by UE1 to UE2 can indicate FDOA. UE_12 (Corresponding to S1206). Of course, UE1 can also directly send F1 and F2 to UE2, so that UE2 can determine FDOA.UE_12 FDOA UE_12 It can also be referred to as the FDOA of the first reference signal and the second reference signal.

[0613] c) The frequency offset of the received third reference signal measured by UE1 is F3, where F3 is different from the frequency F′ of the third reference signal transmitted by UE2. UE2,TX The actual Doppler frequency shift F of the third reference signal d3 and the clock frequency F of UE1 UE1 Related, for example, F3 = F′ UE2,TX +F d3 -F UE1 In other words, UE1 can measure F3, but it does not need to measure F′, which is related to F3. UE2,TX F d3 and F UE1 F3 can also be referred to as the Doppler frequency offset of the received third reference signal, in other words, due to the clock frequency F of UE1. UE1 and the actual frequency F′ of the third reference signal transmitted by UE2 UE2,TX The difference causes the measured Doppler frequency shift F3 of the third reference signal to differ from the actual Doppler frequency shift F of the third reference signal. d3 Different, if the clock frequency F of UE1 is different UE1 The actual frequency F′ of the third reference signal transmitted by UE2 UE2,TX If they are equal, then the Doppler frequency offset F3 of the third reference signal measured by UE1 is equal to the Doppler frequency offset F of the actual third reference signal. d3 They are equal. Therefore, the difference between the frequency offset of the received third reference signal measured by the UE and the frequency offset of the received second reference signal is FDOA. UE_32 =F3-F2=(F′) UE2,TX +F d3 -F UE1 )-(F′ UE2,TX +F d2 -F UE1 ) = F d3 -F d2 In other words, the difference in frequency offset between the two reference signals measured by UE1 can eliminate the clock frequency F of UE1. UE1 The error can also eliminate the actual frequency F′ of the third reference signal and the second reference signal transmitted by UE2. UE2,TX This reduces the impact of UE1's clock frequency error and also lowers the actual frequency F′ at which UE2 transmits the third and second reference signals. UE2,TX The impact of errors. UE1 transmitting the sixth frequency difference information to UE2 can indicate FDOA.UE_32 (corresponding to S1208). Of course, UE1 can also send F3 and F2 directly to UE2, so that UE2 can determine FDOA UE_32 where FDOA UE_32 may also be referred to as the FDOA of the third reference signal and the second reference signal.

[0614] d) UE1 sends UE1's motion speed information to UE2 (corresponding to S1209), UE1's motion speed information includes first motion speed information, second motion speed information and third motion speed information, the first motion speed information indicates that the size of the motion speed of UE1 when receiving the first reference signal is The second motion speed information indicates that the size of the motion speed of UE1 when receiving the second reference signal is The third motion speed information indicates that the size of the motion speed of UE1 when receiving the third reference signal is

[0615] Assuming that the motion direction of UE1 when receiving the first reference signal, the second reference signal and the third reference signal is the x-axis direction, that is, the angle between the motion direction of UE1 when receiving the first reference signal, the second reference signal and the third reference signal and the x-axis is zero.

[0616] where UE1 reports may also report corresponding to the first time t1, UE1 reports may also report corresponding to the second time t2, UE1 reports may also report corresponding to the third time t3.

[0617] e) The size of the motion speed of UE2 when sending the first reference signal is The size of the motion speed of UE2 when sending the second reference signal is The size of the motion speed of UE2 when sending the third reference signal is Assuming that UE2 first sends the first reference signal, then sends the second reference signal, and finally sends the third reference signal, if t1 is before t2, and t2 is before t3, UE2 can determine corresponding to corresponding to corresponding to corresponding to corresponding to UE2 establishes equations (9) and (10) based on FDOA:

[0618]

[0619]

[0620] Wherein, φ1 is the angle between the direction of motion of UE2 when it sends the first reference signal and the line connecting UE1 and UE2. (x,y) represents the coordinates of UE2, where (x,y) are unknowns; φ2 is the angle between the direction of motion of UE2 when transmitting the second reference signal and the line connecting UE1 and UE2. φ3 is the angle between the direction of motion of UE2 when it sends the third reference signal and the line connecting UE1 and UE2. Where, d 12 The distance d that UE2 moves in the x-axis direction between the time UE2 sends the second reference signal and the time UE2 sends the first reference signal. 32 The distance d traveled in the x-axis direction between the time UE2 sends the third reference signal and the time UE2 sends the second reference signal, i.e., UE2 can determine d based on UE2's speed and travel time. 12 and d 32 That is, in the above formula, d 12 and d 32 This can be considered a known quantity. λ is the wavelength of the first, second, and third reference signals transmitted by UE2, where λ = c / F. UE2,TX c is the speed of light. In formulas (9) and (10), there are two unknowns, x and y. Based on formulas (9) and (10), the coordinates (x, y) of UE2 can be calculated, which means that the coordinates of UE2 relative to UE1 are (x, y). After determining (x, y), (x+d) can also be determined. 12 (y) and (x+d) 12 +d 32 ,y).

[0621] It should be noted that during the calculation of UE2's coordinates (x, y), UE2 obtains the known quantity FDOA from UE1. UE_12 FDOA UE_32 , and The corresponding t1, and The corresponding t2 and with For the corresponding t3, the known quantity that UE2 can obtain at UE2 is d 12 d 32 And λ. UE2 can use these known quantities to determine the coordinates (x, y) of UE2. The above formulas (9) and (10) are the derivation principles of the formulas. In the actual calculation process, UE2 does not need to obtain the intermediate parameters of the derivation formulas (9) and (9), such as UE2 does not need to know F′. UE2,TX F d1 Fd2 F d3 and F UE .

[0622] It should be noted that, Figure 13 For ease of description, we will use the angle between the direction of UE2's movement speed and the x-axis as an example. This applies to scenarios where the angle between the direction of UE2's movement speed and the x-axis is not zero. In this case, we also need to consider the distance UE2 moves in the y-direction.

[0623] It should also be noted that, Figure 13 The x-axis and y-axis can be interchanged, and the calculation principle after the interchange is the same as described above.

[0624] In the information processing method described in method 1200 above, the second terminal device determines the location information of the second terminal device. In some scenarios, the first terminal device can also determine the location information of the second terminal device. The following section will discuss this further. Figure 14 Information processing method 1400 describes how the first terminal device determines the location information of the second terminal device, such as... Figure 14 As shown, method 1400 includes:

[0625] S1401, the second terminal device sends fifth information to the first terminal device, the fifth information being used to instruct the first terminal device to determine the location information of the second terminal device.

[0626] Optionally, the fifth information may include auxiliary measurement information, which is used to indicate at least one of the following: a first frequency of the first reference signal, a second frequency of the second reference signal, and a third frequency of the third reference signal transmitted by the second terminal device.

[0627] Optionally, the second terminal device transmits the first reference signal at the same first frequency, transmits the second reference signal at the same second frequency, and transmits the third reference signal at the same third frequency.

[0628] Optionally, the second terminal device and the first terminal device are in relative motion.

[0629] Optionally, the relative motion state between the second terminal device and the first terminal device can be understood as follows: the first terminal device is stationary and the second terminal device is in motion; or the first terminal device is in motion and the second terminal device is stationary; or both the first and second terminal devices are in motion, but their motion speed information is different, for example, the magnitude of their motion speeds is different, and / or the direction of their motion speeds is different.

[0630] For example, the second terminal device is a vehicle, when it needs to change lane, it can trigger the vehicle to send the fifth information to another nearby vehicle to measure the relative position information between the two vehicles.

[0631] It should be noted that the second terminal device sending the fifth information to the first terminal device can be sending the fifth information at a position different from the first position, the second position and the third position, or the second terminal device sending the fifth information to the first terminal device can be sending at one of the first position, the second position and the third position, and the embodiments of the present application do not limit the position of the second terminal device sending the fifth information.

[0632] S1402-S1404 are the same as S1202-S1204 respectively.

[0633] S1405 is the same as S1205.

[0634] The fifth frequency difference information is used to indicate the difference between the frequency offset of the first terminal device receiving the first reference signal and the frequency offset of the first terminal device receiving the second reference signal.

[0635] S1406 is the same as S1207.

[0636] The sixth frequency difference information is used to indicate the difference between the frequency offset of the first terminal device receiving the third reference signal and the frequency offset of the first terminal device receiving the second reference signal.

[0637] S1407, the second terminal device sends the motion speed information of the second terminal device to the first terminal device.

[0638] Optionally, the motion speed information of the second terminal device includes fourth motion speed information of the second terminal device when sending the first reference signal, fifth motion speed information of the second terminal device when sending the second reference signal, and sixth motion speed information of the second terminal device when sending the third reference signal.

[0639] Optionally, the fourth motion speed information is used to indicate the size of the motion speed and / or the direction of the motion speed of the second terminal device when sending the first reference signal.

[0640] Optionally, the fifth motion speed information is used to indicate the size of the motion speed and / or the direction of the motion speed of the second terminal device when sending the second reference signal.

[0641] Optionally, the sixth motion speed information is used to indicate the size of the motion speed and / or the direction of the motion speed of the second terminal device when sending the third reference signal.

[0642] Optionally, the second terminal device can also send fourth timestamp information corresponding to the fourth motion speed information to the first terminal device when sending the fourth motion speed information to the first terminal device. Optionally, the fourth timestamp information is used to indicate a fourth time at which the second terminal device sends the first reference signal.

[0643] Optionally, the second terminal device can also send fifth timestamp information corresponding to the fifth motion speed information to the first terminal device when sending the fifth motion speed information to the first terminal device. Optionally, the fifth timestamp information is used to indicate a fifth time at which the second terminal device sends the second reference signal.

[0644] Optionally, the second terminal device can also send sixth timestamp information corresponding to the sixth motion speed information to the first terminal device when sending the sixth motion speed information to the first terminal device. Optionally, the sixth timestamp information is used to indicate a sixth time at which the second terminal device sends the third reference signal.

[0645] Optionally, the second terminal device can also send, to the first terminal device, a first distance that the second terminal device moves between the time at which the second terminal device sends the second reference signal and the time at which the second terminal device sends the first reference signal, and a second distance that the second terminal device moves between the time at which the second terminal device sends the third reference signal and the time at which the second terminal device sends the second reference signal.

[0646] S1408, the first terminal device determines the position information of the second terminal device according to the difference in S1405, the difference in S1406, the motion speed information of the first terminal device, and the motion speed information of the second terminal device.

[0647] The fifth frequency difference information is used to indicate the difference in S1405, and the sixth frequency difference information is used to indicate the difference in S1406.

[0648] The motion speed information of the first terminal device and the motion speed information of the second terminal device can be described in the description of the method 1200, and will not be described in detail herein to avoid redundancy.

[0649] Optionally, if the second terminal device also sends fourth timestamp information corresponding to fourth motion speed information, fifth timestamp information corresponding to fifth motion speed information, and sixth timestamp information corresponding to sixth motion speed information, the first terminal device determines that the fourth motion speed information corresponds to the first motion speed information according to the fourth timestamp information, and performs operation on the size of the motion speed of the second terminal device indicated by the fourth motion speed information and the size of the motion speed of the first terminal device indicated by the first motion speed information; the first terminal device determines that the fifth motion speed information corresponds to the second motion speed information according to the fifth timestamp information, and performs operation on the size of the motion speed of the second terminal device indicated by the fifth motion speed information and the size of the motion speed of the first terminal device indicated by the second motion speed information; the first terminal device determines that the sixth motion speed information corresponds to the third motion speed information according to the sixth timestamp information, and performs operation on the size of the motion speed of the second terminal device indicated by the sixth motion speed information and the size of the motion speed of the first terminal device indicated by the third motion speed information. In other words, the fourth timestamp information, the fifth timestamp information, and the sixth timestamp information sent by the second terminal device are used by the first terminal device to determine the motion speed information of the corresponding second terminal device.

[0650] Optionally, S1408 includes: the first terminal device determines the position information of the second terminal device according to at least one of the fifth frequency difference value information, the sixth frequency difference value information, the motion speed information of the first terminal device, the motion speed information of the second terminal device, the wavelength at which the second terminal device sends the first reference signal, the wavelength at which the second terminal device sends the second reference signal, or the wavelength at which the second terminal device sends the third reference signal.

[0651] Optionally, the wavelength at which the second terminal device sends the first reference signal is related to the first frequency, for example, the wavelength at which the second terminal device sends the first reference signal is equal to the speed of light divided by the first frequency. That is, the first frequency is configured by the second terminal device to the first terminal device, and therefore, the first terminal device can determine the wavelength at which the second terminal device sends the first reference signal according to the speed of light and the first frequency.

[0652] Optionally, the wavelength at which the second terminal device sends the second reference signal is related to the second frequency, for example, the wavelength at which the second terminal device sends the second reference signal is equal to the speed of light divided by the second frequency. That is, the second frequency is configured by the second terminal device to the first terminal device, and therefore, the first terminal device can determine the wavelength at which the second terminal device sends the second reference signal according to the speed of light and the second frequency.

[0653] Optionally, the wavelength at which the second terminal device transmits the third reference signal is related to the third frequency, for example, the wavelength at which the second terminal device transmits the third reference signal is equal to the speed of light divided by the third frequency. That is, the third frequency is configured to the first terminal device by the second terminal device, and therefore, the first terminal device can determine the wavelength at which the second terminal device transmits the third reference signal according to the speed of light and the third frequency.

[0654] Optionally, the first terminal device determines the position information of the second terminal device according to at least one of the fifth frequency difference information, the sixth frequency difference information, the motion speed information of the first terminal device, the motion speed information of the second terminal device, the wavelength at which the second terminal device transmits the first reference signal, the wavelength at which the second terminal device transmits the second reference signal, or the wavelength at which the second terminal device transmits the third reference signal, comprises: the first terminal device determines the position information of the second terminal device according to at least one of the fifth frequency difference information, the sixth frequency difference information, the motion speed information of the first terminal device, the motion speed information of the second terminal device, the wavelength at which the second terminal device transmits the first reference signal, the wavelength at which the second terminal device transmits the second reference signal, the wavelength at which the second terminal device transmits the third reference signal, a first distance of the second terminal device moving between the time at which the second terminal device transmits the second reference signal and the time at which the second terminal device transmits the first reference signal, or a second distance of the second terminal device moving between the time at which the second terminal device transmits the third reference signal and the time at which the second terminal device transmits the second reference signal.

[0655] Optionally, if the first frequency, the second frequency and the third frequency are the same, S1408 can be performed.

[0656] Optionally, if the first frequency, the second frequency and the third frequency are different, S1408 comprises: the first terminal device determines the position information of the second terminal device according to at least one of the fifth frequency difference information, the sixth frequency difference information, the motion speed information of the first terminal device, the motion speed information of the second terminal device, or the first frequency, the second frequency or the third frequency.

[0657] Optionally, the position information of the second terminal device is used to indicate the coordinates of the second terminal device relative to the first terminal device.

[0658] Optionally, the coordinates of the second terminal device relative to the first terminal device can be understood as the coordinates of the second terminal device with the coordinates of the first terminal device as the coordinate origin.

[0659] Alternatively, determining the position information of the second terminal device in S1408 can be replaced by determining the position information of the first terminal device. Optionally, the position information of the first terminal device is used to indicate the coordinates of the first terminal device relative to the second terminal device. Optionally, the coordinates of the first terminal device relative to the second terminal device can be understood as the coordinates of the first terminal device with the coordinates of the second terminal device as the coordinate origin.

[0660] That is, if the first terminal device can calculate the coordinates of the second terminal device relative to the first terminal device, the coordinates of the first terminal device relative to the second terminal device can be calculated according to the coordinates of the second terminal device relative to the first terminal device, or if the second terminal device can calculate the coordinates of the first terminal device relative to the second terminal device, the coordinates of the second terminal device relative to the first terminal device can be calculated according to the coordinates of the first terminal device relative to the second terminal device.

[0661] The information processing method 1500 of the embodiments of the present application is described below in combination with Figure 15 As shown in Figure 15 The method is applicable to a first device, and the method 1500 includes the following steps.

[0662] S1501, the first device obtains first frequency difference information, and the first frequency difference information is used to indicate the difference between the frequency at which the second device receives a first reference signal of a third device and the frequency at which the second device receives a second reference signal of a fourth device.

[0663] Optionally, the first device can be an LMF unit in the method 400. S1501 includes: the LMF unit obtains the first frequency difference information from a terminal device, and the terminal device is the second device, so that the terminal device measures the first frequency difference information and sends it to the LMF unit.

[0664] Optionally, the first device can be a terminal device in the method 600. The second device can also be a terminal device in the method 600.

[0665] Optionally, the first device can be an LMF unit in the method 700. Optionally, the first device can be a terminal device in the method 900. S1501 includes: the LMF unit obtains the first frequency difference information from a terminal device, and the terminal device is the second device, so that the terminal device measures the first frequency difference information and sends it to the LMF unit.

[0666] S1502, the first device obtains second frequency difference information, and the second frequency difference information is used to indicate the difference between the frequency at which the fourth device sends the second reference signal and the frequency at which the third device sends the first reference signal.

[0667] Optionally, the first device can be the LMF unit in the method 400. S1502 comprises: the LMF unit obtaining the second frequency difference information from the fourth device, wherein the fourth device measures the second frequency difference information and sends the second frequency difference information to the LMF unit.

[0668] Optionally, the first device can be the terminal device in the method 600. The second device can also be the terminal device in the method 600. The terminal device can obtain the second frequency difference information from the LMF unit, and the second frequency difference information of the LMF unit is sent by the fourth device to the LMF unit.

[0669] Optionally, the first device can be the LMF unit in the method 700. S1501 comprises: the LMF unit obtaining the second frequency difference information from the fourth device, wherein the fourth device measures the second frequency difference information and sends the second frequency difference information to the LMF unit.

[0670] Optionally, the first device can be the terminal device in the method 900.

[0671] S1503 comprises: the first device determining the position information of the second device according to the first frequency difference information and the second frequency difference information.

[0672] Optionally, if the first device is the LMF unit in the method 400 and the second device is the terminal device in the method 400, S1503 comprises: the LMF unit determining the position information of the terminal device according to the second frequency difference information in S409 and the first frequency difference information in S413.

[0673] Optionally, if the first device and the second device are the terminal devices in the method 600, S1503 comprises: the terminal device determining the position information of the terminal device according to the difference in S614 (the first frequency difference information is used to indicate the difference in S614) and the second frequency difference information in S612.

[0674] Optionally, if the first device is the LMF unit in the method 700 and the second device is the terminal device in the method 700, S1503 comprises: the LMF unit determining the position information of the terminal device according to the second frequency difference information in S707 and the first frequency difference information in S711.

[0675] Optionally, if the first device and the second device are the terminal devices in the method 900, S1503 comprises: the terminal device determining the position information of the terminal device according to the second frequency difference information in S910 and the difference in S912 (the first frequency difference information is used to indicate the difference in S912).

[0676] Optionally, if the first device is an LMF unit in the method 1000 and the second device is a terminal device in the method 1000, the S1503 includes: determining, by the LMF unit, the position information of the terminal device according to the second frequency difference information in the S1009 and the first frequency difference information in the S1017.

[0677] Optionally, if the first device and the second device are terminal devices in the method 1100, the S1503 includes: determining, by the terminal device, the position information of the terminal device according to the second frequency difference information in the S1116 and the difference value (the first frequency difference information is used to indicate the difference value) in the S1117.

[0678] Optionally, the method 1500 includes: obtaining, by the first device, the motion speed information of the second device, and the S1503 includes: determining, by the first device, the position information of the second device according to the motion speed information of the second device, the first frequency difference information and the sec...

Claims

1. An information processing method, characterized in that, The method is applicable to a first device and includes: Obtain first frequency difference information, which is used to indicate the difference between the frequency at which the second device receives the first reference signal from the third device and the frequency at which the second device receives the second reference signal from the fourth device; Obtain second frequency difference information, which is used to indicate the difference between the frequency at which the fourth device sends the second reference signal and the frequency at which the third device sends the first reference signal; The location information of the second device is determined based on the first frequency difference information and the second frequency difference information.

2. The method according to claim 1, characterized in that, The method further includes: Obtain the motion speed information of the second device; The step of determining the location information of the second device based on the first frequency difference information and the second frequency difference information includes: The position information of the second device is determined based on the first frequency difference information, the second frequency difference information, and the movement speed information of the second device.

3. The method according to claim 2, characterized in that, The method further includes: Obtain third frequency difference information, which is used to indicate the difference between the frequency at which the second device receives the third reference signal from the fifth device and the frequency at which the second device receives the second reference signal from the fourth device; Obtain fourth frequency difference information, which is used to indicate the difference between the frequency at which the fourth device sends the second reference signal and the frequency at which the fifth device sends the third reference signal; The step of determining the position information of the second device based on the first frequency difference information, the second frequency difference information, and the movement speed information of the second device includes: The position information of the second device is determined based on the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information, and the movement speed information of the second device.

4. The method according to claim 3, characterized in that, The step of determining the position information of the second device based on the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information, and the movement speed information of the second device includes: The position information of the second device is determined based on the first frequency difference information, the second frequency difference information, the third frequency difference information, the fourth frequency difference information, the movement speed information of the second device, the wavelength of the first reference signal transmitted by the third device, the wavelength of the second reference signal transmitted by the fourth device, and the wavelength of the third reference signal transmitted by the fifth device.

5. The method according to claim 2, characterized in that, The method further includes: Obtain first time difference information, which is used to indicate the difference between the time when the second device receives the first reference signal from the third device and the time when the second device receives the second reference signal from the fourth device; The step of determining the position information of the second device based on the first frequency difference information, the second frequency difference information, and the movement speed information of the second device includes: The position information of the second device is determined based on the first frequency difference information, the second frequency difference information, the first time difference information, and the movement speed information of the second device.

6. The method according to claim 5, characterized in that, The step of determining the position information of the second device based on the first frequency difference information, the second frequency difference information, the first time difference information, and the movement speed information of the second device includes: The position information of the second device is determined based on the first frequency difference information, the second frequency difference information, the first time difference information, the movement speed information of the second device, the wavelength of the first reference signal sent by the third device, and the wavelength of the second reference signal sent by the fourth device.

7. The method according to any one of claims 1 to 6, characterized in that, The first device and the second device are the same terminal device. Before obtaining the first frequency difference information, the method further includes: Receive first information, which is used to instruct the second device to determine the location information of the second device.

8. The method according to any one of claims 1 to 6, characterized in that, The first device and the second device are the same terminal device, and the acquisition of the second frequency difference information includes: Receive the second frequency difference information.

9. The method according to any one of claims 1 to 6, characterized in that, The first device is a location management function unit. Before acquiring the first frequency difference information, the method further includes: Send a second message to the second device, the second message being used to instruct the second device that the first device needs to measure the location information of the second device; The step of obtaining the first frequency difference information includes: Receive the first frequency difference information from the second device.

10. The method according to any one of claims 1 to 6, characterized in that, The first device is a location management function unit. Before acquiring the second frequency difference information, the method further includes: Send a third message to the fourth device, the third message being used to request frequency difference information from the fourth device; The acquisition of the second frequency difference information includes: The second frequency difference information is received from the fourth device.

11. An information processing method, characterized in that, The method is applicable to a second device, and the method includes: Receive second information, the second information being used to instruct the second device that the first device needs to measure the location information of the second device; Sending first frequency difference information, the first frequency difference information is used to indicate the difference between the frequency at which the second device receives the first reference signal from the third device and the frequency at which the second device receives the second reference signal from the fourth device. The first frequency difference information and the second frequency difference information are used to determine the location information of the second device. The second frequency difference information is used to indicate the difference between the frequency at which the fourth device sends the second reference signal and the frequency at which the third device sends the first reference signal.

12. The method according to claim 11, characterized in that, The method further includes: The motion speed information of the second device is sent, and the motion speed information of the second device is used to determine the position information of the second device.

13. The method according to claim 11 or 12, characterized in that, The method further includes: Send a third frequency difference information, which is used to indicate the difference between the frequency at which the second device receives the third reference signal from the fifth device and the frequency at which the second device receives the second reference signal from the fourth device, and the third frequency difference information is used to determine the location information of the second device.

14. The method according to claim 11 or 12, characterized in that, The method further includes: Send first time difference information, which is used to indicate the difference between the time when the second device receives the first reference signal from the third device and the time when the second device receives the second reference signal from the fourth device, and the first time difference information is used to determine the location information of the second device.

15. An information processing method, characterized in that, The method is adapted to a fourth device, including: Receive third information, the third information being used to request frequency difference information from the fourth device; The system sends a second frequency difference information, which is used to indicate the difference between the frequency at which the fourth device sends the second reference signal and the frequency at which the third device sends the first reference signal. The second frequency difference information and the first frequency difference information are used to determine the location information of the second device. The first frequency difference information is used to indicate the difference between the frequency at which the second device receives the first reference signal from the third device and the frequency at which the second device receives the second reference signal from the fourth device.

16. The method according to claim 15, characterized in that, The method further includes: A fourth frequency difference information is sent, which is used to indicate the frequency difference between the frequency at which the fourth device sends the second reference signal and the frequency at which the fifth device sends the third reference signal. The fourth frequency difference information is used to determine the location information of the second device.

17. An electronic device, characterized in that, The device includes a processor coupled to a memory, the processor being configured to execute a computer program or instructions stored in the memory to cause the electronic device to perform the method as described in any one of claims 1 to 16.

18. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that, when executed on an electronic device, cause the electronic device to perform the method as described in any one of claims 1 to 16.

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