WO2023151434A1

WO2023151434A1 - Communication method and communication apparatus

Info

Publication number: WO2023151434A1
Application number: PCT/CN2023/070813
Authority: WO
Inventors: 吴海兵; 李雪茹
Original assignee: 华为技术有限公司
Priority date: 2022-02-11
Filing date: 2023-01-06
Publication date: 2023-08-17

Abstract

Embodiments of the present application provide a communication method and a communication apparatus. The communication method comprises: a terminal device receives and measures reference signals carried on a plurality of different frequency resources, determines first information on the basis of a phase measurement result of a reference signal carried on a first frequency resource and a phase measurement result of a reference signal carried on a second frequency resource, and sends the first information to other devices, the first information being used for indicating a direction angle. In the communication method, a terminal device receives and measures reference signals carried on different frequency resources, and sends first information for indicating a direction angle, so that other devices can obtain a direction angle according to the first information. The direction angle is determined on the basis of the phase measurement results of the reference signals carried on different frequency resources; therefore, the obtained direction angle is unique, thus solving the problem of angle measurement ambiguity.

Description

Communication method and communication device

This application claims the priority of the Chinese patent application with the application number 202210129996.0 and the application name "A Phase-Based Angle Measurement Method" submitted to the China Patent Office on February 11, 2022, and the claim is filed on March 24, 2022 Priority to a Chinese patent application with application number 202210302562.6 and titled "Communication Method and Communication Device" filed with the China Patent Office, the entire contents of which are incorporated herein by reference.

technical field

The embodiments of the present application relate to the communication field, and more specifically, relate to a communication method and a communication device.

Background technique

In new radio (new radio, NR) and sidelink (sidelink) positioning scenarios, the direction angle is generally determined based on the phase difference obtained by measuring the reference signal with multiple antenna devices. However, due to the ambiguity of the entire phase, when the distance between the antennas is greater than or equal to half the wavelength, the determined direction angle may not be unique, that is, the problem of angle measurement ambiguity may occur.

In the existing protocol, in the NR positioning scenario, in order to solve the angle measurement ambiguity problem, the base station can report multiple possible angle measurement results to the location management function (LMF), and the LMF integrates the angle measurements of multiple base stations As a result, the final orientation angle is determined. However, when the number of base stations is small (for example, 2), it is also difficult for LMF to exclude wrong direction angles from the final direction angle, that is, it cannot solve the problem of ambiguity in angle measurement.

In addition, the existing protocol does not involve how to solve the problem of angle measurement ambiguity in the sidelink positioning scenario.

Contents of the invention

Embodiments of the present application provide a communication method and a communication device, which can solve the problem of ambiguity in angle measurement.

In the first aspect, a communication method is provided, and the method is applied to a terminal device, including:

Receive reference signals carried on the first frequency resource and the second frequency resource, the first frequency resource and the second frequency resource are different; send first information, the first information is used to indicate the direction angle, and the first information is based on the bearer The phase measurement result of the reference signal on the first frequency resource and the phase measurement result of the reference signal carried on the second frequency resource are determined.

Based on the above technical solution, the terminal device receives reference signals carried on different frequency resources, and sends first information for indicating the direction angle, so that other devices can obtain the direction angle according to the first information. Since the first information is determined based on the phase measurement results of the reference signals carried on different frequency resources, and the first information is used to indicate the direction angle, it can be understood that the direction angle is also based on the phase measurement results of the reference signals carried on different frequency resources The result is determined, so whether in NR or sidelink positioning scenarios, the obtained direction angle is unique, which can solve the problem of ambiguity in angle measurement.

With reference to the first aspect, in some implementation manners of the first aspect, the terminal device includes a first antenna and a second antenna; the receiving the reference signal carried on the first frequency resource and the second frequency resource includes:

The reference signal carried on the first frequency resource and the second frequency resource is received through the first antenna; the reference signal carried on the first frequency resource and the second frequency resource is received through the second antenna.

The phase measurement result of the reference signal on the first frequency resource is determined according to the first phase and the second phase, the first phase is the phase of the reference signal of the first frequency resource received by the first antenna, and the second phase is the phase of the reference signal of the first frequency resource received by the first antenna. The phase of the reference signal of the first frequency resource received by the two antennas; the phase measurement result of the reference signal on the second frequency resource is determined according to the third phase and the fourth phase, and the third phase is received by the first antenna The phase of the reference signal of the second frequency resource, the fourth phase is the phase of the reference signal of the second frequency resource received by the second antenna.

Based on the above technical solution, the terminal device obtains the phases of the reference signals carried by different antennas on different frequency resources by receiving the reference signals carried on different frequency resources on different antennas, so that the phase measurement of the reference signals on different frequency resources can be obtained As a result, it is convenient for the terminal device to determine the first information based on the phase measurement results of the reference signals carried on different frequency resources, and then the terminal device or other devices can determine a unique direction angle according to the first information, so as to solve the problem of ambiguity in angle measurement .

In a possible implementation manner, the reference signal may carry identification information, where the identification information is used to identify the reference signal, an antenna for sending the reference signal, or a port for sending the reference signal.

In a possible implementation manner, before receiving the reference signals carried on the first frequency resource and the second frequency resource, the method further includes: receiving a request message, where the request message includes at least one of the following: the first frequency information, reference signal transmission mode information, and the type of content included in the location information, the first frequency information is used to indicate the frequency of the optional reference signal; the second information is sent according to the first frequency information, and the second information is used for At least one of the following is indicated: the frequency of the reference signal requested by the terminal device, the transmission mode of the reference signal, and the type of content included in the location information.

In a possible implementation manner, the method further includes: receiving a response message for the second information, where the response message is used to indicate at least one of the following: frequency of the configured reference signal, transmission mode of the reference signal, location information The type of content to include.

The terminal device and the first device can exchange the second information, that is, the interaction of configuration information and capability information, so that the frequency of the configured reference signal, the transmission mode of the reference signal, or the type of content included in the location information can be determined, and then can be Communication between the terminal device and the first device is implemented.

With reference to the first aspect, in some implementation manners of the first aspect, the receiving the reference signal carried on the first frequency resource and the second frequency resource includes:

Receive a reference signal on the first frequency resource sent by the first port and a reference signal on the first frequency resource sent by the second port; receive a reference signal on the second frequency resource sent by the third port and a reference signal on the first frequency resource sent by the fourth port Reference signals on two frequency resources.

The phase measurement result of the reference signal on the first frequency resource is determined according to the first phase and the second phase, the first phase is the received phase of the reference signal on the first frequency resource sent by the first port, and the second The phase is the received phase of the reference signal on the first frequency resource transmitted by the second port; the phase measurement result of the reference signal on the second frequency resource is determined according to the third phase and the fourth phase, and the third phase is the received The received phase of the reference signal on the second frequency resource sent by the third port, and the fourth phase is the received phase of the reference signal on the second frequency resource sent by the fourth port.

Based on the above technical solution, the terminal device can receive reference signals on different frequency resources sent by different ports, and obtain the phase measurement results of the reference signals sent by different ports on different frequency resources, so that the terminal device can The phase measurement result of the reference signal determines the first information, and then the terminal device or other devices determine a unique direction angle according to the first information, so as to solve the problem of ambiguity in angle measurement.

In a possible implementation manner, before receiving the reference signals carried on the first frequency resource and the second frequency resource, the method further includes: receiving second information, where the second information is used to indicate at least one of the following : The frequency of the reference signal requested by the first device, the transmission mode of the reference signal, and the type of content included in the location information.

In a possible implementation manner, the method further includes: sending a response message for the second information, where the response message is used to indicate at least one of the following: the frequency of the configured reference signal, the transmission mode of the reference signal, and the location information The type of content to include.

In a possible implementation manner, the method further includes: sending a request message, where the request message is used to request the first device to send the second information.

With reference to the first aspect, in some implementation manners of the first aspect, the first information includes position information, and the position information is used to indicate at least one of the following: first phase information, second phase information, third phase information, and fourth phase information; first phase difference information and second phase difference information; third phase difference information and fourth phase difference information; phase difference difference information.

Wherein, the first phase difference information is obtained according to the first phase and the second phase, the second phase difference information is obtained according to the third phase and the fourth phase, and the third phase difference information is obtained according to the first phase and the The third phase is obtained, the fourth phase difference information is obtained according to the second phase and the fourth phase, and the difference information of the phase difference is obtained according to the first phase, the second phase, the third phase and the fourth phase .

In a possible implementation manner, the first information further includes positioning assistance information, where the positioning assistance information is used to indicate relative positions of the first antenna and the second antenna.

Based on the above technical solution, the first information sent by the terminal device includes position information, the position information is used to indicate phase information, phase difference information or phase difference difference information, and the phase information, phase difference information or phase difference difference value The information is obtained according to the phases under different frequency resources. Therefore, no matter in the NR or sidelink positioning scenario, the direction angle determined by other devices according to the position information in the first information is unique, so that the problem of ambiguity in angle measurement can be solved.

With reference to the first aspect, in some implementation manners of the first aspect, the first information includes a direction angle, where the direction angle is an angle of arrival or an angle of departure, and the direction angle is determined according to the position information, and the position information is used for Indicating at least one of the following: first phase information, second phase information, third phase information, and fourth phase information; first phase difference information and second phase difference information; third phase difference information and fourth phase difference information ; Difference information of phase difference.

In a possible implementation manner, the terminal device determines a direction angle according to the location information and its own positioning assistance information, where the direction angle is an angle of arrival or an angle of departure.

Based on the above technical solution, the first information sent by the terminal device may be the direction angle, which may be the angle of arrival or the angle of departure, and the direction angle is obtained according to the position information, which is used to indicate phase information, phase difference Information or phase difference difference information, where the phase information, phase difference information or phase difference difference information is obtained according to phases under different frequency resources. Therefore, no matter in the NR or sidelink positioning scenario, the direction angle determined by the terminal device based on the position information is unique, so that the problem of ambiguity in angle measurement can be solved.

With reference to the first aspect, in some implementations of the first aspect, the first phase information includes the first phase; the second phase information includes the second phase; the third phase information includes the three phases; the fourth phase The information includes a fourth phase; the first phase difference information includes a first phase difference; the second phase difference information includes a second phase difference; the third phase difference information includes a third phase difference; the fourth phase difference information includes a first phase difference Four phase differences; the difference information of the phase difference includes the difference value of the first phase difference or the difference value of the second phase difference.

Wherein, the first phase difference is the phase difference between the first phase and the second phase; the second phase difference is the phase difference between the third phase and the fourth phase; the third phase difference is the first phase The phase difference with the third phase; the fourth phase difference is the phase difference between the second phase and the fourth phase; the difference between the first phase difference is the difference between the first phase difference and the second phase difference value; the difference between the second phase difference is the difference between the third phase difference and the fourth phase difference.

With reference to the first aspect, in some implementation manners of the first aspect, the receiving the reference signal carried on the first frequency resource and the second frequency resource includes: receiving a first reference signal, the first reference signal carried on the On the first frequency resource: receiving a second reference signal, where the second reference signal is carried on the second frequency resource.

With reference to the first aspect, in some implementation manners of the first aspect, the receiving the reference signal carried on the first frequency resource and the second frequency resource includes: receiving a first reference signal, the first reference signal is determined by the first The frequency resource and the second frequency resource are jointly carried.

Based on the above technical solution, the reference signals on different frequency resources received by the terminal device can be carried by different reference signals, or by the same reference signal. No matter which method of sending the reference signal is adopted, the terminal device can The reference signals on different frequency resources are received, so that the first information can be determined according to phase measurement results of the reference signals on different frequency resources.

In a second aspect, a communication method is provided, and the method is applied to a first device, including: sending reference signals carried on a first frequency resource and a second frequency resource, where the first frequency resource and the second frequency resource are different; receiving first information from a terminal device, where the first information is used to indicate a direction angle, where the first information is based on a phase measurement result of a reference signal carried on a first frequency resource and a phase measurement result of a reference signal carried on a second frequency resource The phase measurement results are OK.

Based on the above technical solution, the first device sends reference signals carried on different frequency resources, and receives first information from the terminal device, the first information is used to indicate the direction angle, and the first device can obtain the direction according to the first information horn. Since the first information is determined based on the phase measurement results of the reference signals carried on different frequency resources, and the first information is used to indicate the direction angle, it can be understood that the direction angle is also based on the phase measurement results of the reference signals carried on different frequency resources The result is determined, so whether in NR or sidelink positioning scenarios, the obtained direction angle is unique, which can solve the problem of ambiguity in angle measurement.

With reference to the second aspect, in some implementation manners of the second aspect, the reference signal carried on the first frequency resource is received by the first antenna and the second antenna; the reference signal carried on the second frequency resource is received by the first antenna The first antenna and the second antenna receive; the phase measurement result of the reference signal on the first frequency resource is determined according to the first phase and the second phase, and the first phase corresponds to the first frequency resource received by the first antenna The phase of the reference signal on the first frequency resource, the second phase corresponds to the phase of the reference signal on the first frequency resource received by the second antenna; the phase measurement result of the reference signal on the second frequency resource is based on the third phase and the fourth The phase is determined, the third phase corresponds to the phase of the reference signal on the second frequency resource received by the first antenna, and the fourth phase corresponds to the phase of the reference signal on the second frequency resource received by the second antenna.

In a possible implementation manner, before sending the reference signals carried on the first frequency resource and the second frequency resource, the method further includes: sending a request message, where the request message includes at least one of the following items: the first frequency information, reference signal transmission mode information, and the type of content included in the location information, the first frequency information is used to indicate the frequency of the optional reference signal; receiving second information, the second information is used to indicate at least one of the following: The frequency of the reference signal requested by the terminal device, the transmission mode of the reference signal, and the type of content included in the location information.

The first device and the terminal device can perform the interaction of the second information, that is, the interaction of configuration information and capability information, so as to determine the frequency of the configured reference signal, the transmission mode of the reference signal, or the type of content included in the location information, and then can Communication between the terminal device and the first device is implemented.

With reference to the second aspect, in some implementation manners of the second aspect, the sending the reference signal carried on the first frequency resource and the second frequency resource includes: sending the first frequency resource through the first port and the second port respectively. A reference signal on a frequency resource; sending the reference signal on the second frequency resource through the third port and the fourth port respectively.

The phase measurement result of the reference signal on the first frequency resource is determined according to the first phase and the second phase, the first phase corresponds to the phase of the reference signal on the first frequency resource sent by the first port, and the second phase Corresponding to the phase of the reference signal on the first frequency resource sent by the second port; the phase measurement result of the reference signal on the second frequency resource is determined according to the third phase and the fourth phase, the third phase is the third port The transmitted phase of the reference signal on the second frequency resource, where the fourth phase is the phase of the reference signal transmitted by the fourth port on the second frequency resource.

With reference to the second aspect, in some implementations of the second aspect, the first device includes a first antenna and a second antenna, the reference signal on the first frequency resource sent by the first port and the reference signal sent by the third port The reference signals on the second frequency resource are all sent through the first antenna, the reference signal on the first frequency resource sent by the second port and the reference signal on the second frequency resource sent by the fourth port Signals are sent through the second antenna.

It should be understood that the first antenna of the first device corresponds to the first port and the third port, and the second antenna of the first device corresponds to the second port and the fourth port. That is to say, the reference signal sent by the first port and the reference signal sent by the third port are both sent through the first antenna, and the reference signal sent by the second port and the reference signal sent by the fourth port are both sent through the second antenna of.

Based on the above technical solution, the first device can send reference signals carried on different frequency resources through different antennas (or different ports), so that the terminal device can obtain the phase measurement results of the reference signals sent by different ports on different frequency resources, thereby The terminal device can determine the first information according to the phase measurement results of the reference signals on different frequency resources, so that the terminal device or the first device can determine a unique direction angle according to the first information, and solve the problem of ambiguity in angle measurement.

In a possible implementation manner, the reference signal carries identification information, and the identification information is used to identify the reference signal, an antenna for sending the reference signal, or a port for sending the reference signal.

In a possible implementation manner, before sending the reference signals carried on the first frequency resource and the second frequency resource, the method further includes: sending second information according to the first frequency information, the first frequency information Used to indicate the frequency of the optional reference signal, the second information is used to indicate at least one of the following: the frequency of the reference signal requested by the first device, information about the transmission mode of the reference signal, and a type of content included in the location information.

In a possible implementation manner, the method further includes: receiving a response message for the second information, where the response message is used to indicate at least one of the following: the frequency of the configured reference signal, the transmission mode of the reference signal, and the location The type of content that the information includes.

In a possible implementation manner, the method further includes: receiving a request message, where the request message is used to request the first device to send the second information.

With reference to the second aspect, in some implementations of the second aspect, the first information includes position information, and the position information is used to indicate at least one of the following: first phase information, second phase information, third phase information, and the fourth phase information; the first phase difference information and the second phase difference information; the third phase difference information and the fourth phase difference information; the difference information of the phase difference; the method also includes: determining the direction angle according to the position information .

Wherein, the first phase difference information is obtained according to the first phase and the second phase, the second phase difference information is obtained according to the third phase and the fourth phase, and the third phase difference information is obtained according to The first phase and the third phase are obtained, the fourth phase difference information is obtained according to the second phase and the fourth phase, and the difference information of the phase difference is obtained according to the first phase, the second phase , the third phase and the fourth phase are obtained.

In a possible implementation manner, the first device determines a direction angle according to the location information and the positioning assistance information, where the direction angle may be an angle of arrival or an angle of departure.

Based on the above technical solution, the first information received by the first device includes position information, where the position information is used to indicate phase information, phase difference information, or phase difference difference information, and the phase information, phase difference information, or phase difference difference The value information is obtained according to the phase under different frequency resources. Therefore, no matter in the NR or sidelink positioning scenario, the direction angle that the first device can determine according to the position information in the received first information is unique, so that the problem of ambiguity in angle measurement can be solved.

With reference to the second aspect, in some implementation manners of the second aspect, the first information includes a direction angle, where the direction angle is an angle of arrival or an angle of departure, and the direction angle is determined according to the position information, and the position information is used for Indicating at least one of the following: first phase information, second phase information, third phase information, and fourth phase information; first phase difference information and second phase difference information; third phase difference information and fourth phase difference information ; Difference information of phase difference.

Based on the above technical solution, the first information received by the first device from the terminal device may be a direction angle, the direction angle may be the angle of arrival or the angle of departure, and the direction angle is obtained by the terminal device according to the location information, which is used for Indicates phase information, phase difference information or phase difference difference information. The phase information, phase difference information or phase difference difference information is obtained according to the phase under different frequency resources. Therefore, whether it is in NR or sidelink positioning scenarios Among them, the direction angle determined by the terminal device according to the position information is unique, so the direction angle received by the first device is also unique, that is, the problem of ambiguity in angle measurement can be solved.

With reference to the second aspect, in some implementations of the second aspect, the first phase information includes the first phase; the second phase information includes the second phase; the third phase information includes the third phase; the The fourth phase information includes the fourth phase; the first phase difference information includes the first phase difference; the second phase difference information includes the second phase difference; the third phase difference information includes the third phase difference; the fourth phase The difference information includes a fourth phase difference; the difference information of the phase difference includes a difference of the first phase difference or a difference of the second phase difference.

With reference to the second aspect, in some implementation manners of the second aspect, the sending the reference signal carried on the first frequency resource and the second frequency resource includes: sending the first reference signal carried on the first frequency resource; Send the second reference signal carried on the second frequency resource.

With reference to the second aspect, in some implementations of the second aspect, the sending the reference signal carried on the first frequency resource and the second frequency resource includes: sending the reference signal carried on the first frequency resource and the second frequency resource the first reference signal.

Based on the above technical solution, the reference signals on different frequency resources sent by the first device may be carried by different reference signals, or carried by the same reference signal. No matter which method of sending the reference signal is adopted, it can make The terminal device receives the reference signals on different frequency resources, so that the terminal device can determine the first information according to phase measurement results of the reference signals on different frequency resources.

In a third aspect, a communication method is provided, the method is applied to a core network device, including: receiving location information from a terminal device, where the location information is based on a phase measurement result of a reference signal carried on a first frequency resource and carried in a The phase measurement result of the reference signal on the second frequency resource is determined; and the departure angle is determined according to the position information.

With reference to the third aspect, in some implementations of the third aspect, the location information is used to indicate at least one of the following: first phase information, second phase information, third phase information, and fourth phase information; the first Phase difference information and second phase difference information; third phase difference information and fourth phase difference information; phase difference difference information.

With reference to the third aspect, in some implementations of the third aspect, the first phase information includes the first phase; the second phase information includes the second phase; the third phase information includes the third phase; the The fourth phase information includes the fourth phase; the first phase difference information includes the first phase difference; the second phase difference information includes the second phase difference; the third phase difference information includes the third phase difference; the fourth phase The difference information includes a fourth phase difference; the difference information of the phase difference includes a difference of the first phase difference or a difference of the second phase difference.

In a possible implementation manner, the core network device may also receive the positioning assistance information sent by the first device.

In a possible implementation manner, the core network device determines a direction angle according to the location information and the positioning assistance information, where the direction angle is a departure angle.

Based on the above solution, the core network equipment can receive the location information from the terminal equipment, and the location information is determined according to the phase measurement results of the reference signals on different frequency resources. angle, which can solve the problem of ambiguity in angle measurement.

In a fourth aspect, a communication method is provided, the method is applied to a core network device, including: receiving location information from a terminal device, where the location information is based on a phase measurement result of a reference signal carried on a first frequency resource and carried on a The phase measurement result of the reference signal on the second frequency resource is determined, and the location information is used to determine the departure angle; and the location information is sent to the access network device.

With reference to the fourth aspect, in some implementations of the fourth aspect, the location information is used to indicate at least one of the following: first phase information, second phase information, third phase information, and fourth phase information; the first Phase difference information and second phase difference information; third phase difference information and fourth phase difference information; phase difference difference information.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first phase information includes the first phase; the second phase information includes the second phase; the third phase information includes the third phase; the The fourth phase information includes the fourth phase; the first phase difference information includes the first phase difference; the second phase difference information includes the second phase difference; the third phase difference information includes the third phase difference; the fourth phase The difference information includes a fourth phase difference; the difference information of the phase difference includes a difference of the first phase difference or a difference of the second phase difference.

Based on the above technical solution, the core network device can forward the location information from the terminal device to the first device, so that the first device can obtain a unique direction angle based on the location information, thereby solving the problem of ambiguity in angle measurement.

In a fifth aspect, a communication device is provided, including: a receiving unit and a sending unit. The receiving unit is used for: receiving the reference signal carried on the first frequency resource and the second frequency resource, the first frequency resource is different from the second frequency resource; the sending unit is used for: sending the first information, the second frequency resource A piece of information is used to indicate a direction angle, and the first information is determined based on the phase measurement result of the reference signal carried on the first frequency resource and the phase measurement result of the reference signal carried on the second frequency resource.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, the terminal device includes a first antenna and a second antenna; the receiving unit is further configured to: receive the bearer on the first frequency resource and the A reference signal on the second frequency resource: receiving the reference signal carried on the first frequency resource and the second frequency resource through the second antenna.

The phase measurement result of the reference signal on the first frequency resource is determined according to the first phase and the second phase, the first phase is the phase of the reference signal of the first frequency resource received by the first antenna, and the first phase is received by the first antenna. The second phase is the phase of the reference signal of the first frequency resource received by the second antenna; the phase measurement result of the reference signal on the second frequency resource is determined according to the third phase and the fourth phase, and the third phase is the phase of the reference signal of the second frequency resource received by the first antenna, and the fourth phase is the phase of the reference signal of the second frequency resource received by the second antenna.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, the receiving unit is further configured to: receive a request message, where the request message includes at least one of the following: first frequency information, reference signal transmission mode information, location information The type of content included, the first frequency information is used to indicate the frequency of the optional reference signal; the sending unit is also used to: send second information according to the first frequency information, and the second information is used to indicate at least one of the following Item: the frequency of the reference signal requested by the terminal device, the transmission method of the reference signal, and the type of content included in the location information.

With reference to the fifth aspect, in some implementations of the fifth aspect, the receiving unit is further configured to: receive a response message for the second information, where the response message is used to indicate at least one of the following: the frequency of the configured reference signal , the transmission mode of the reference signal, and the type of content included in the location information.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, the receiving unit is further configured to: receive a reference signal on the first frequency resource sent by the first port and a reference signal on the first frequency resource sent by the second port receiving the reference signal on the second frequency resource sent by the third port and the reference signal on the second frequency resource sent by the fourth port.

The phase measurement result of the reference signal on the first frequency resource is determined according to the first phase and the second phase, where the first phase is the received phase of the reference signal on the first frequency resource sent by the first port, The second phase is the received phase of the reference signal on the first frequency resource sent by the second port; the phase measurement result of the reference signal on the second frequency resource is determined according to the third phase and the fourth phase, The third phase is the received phase of the reference signal on the second frequency resource sent by the third port, and the fourth phase is the received phase of the reference signal on the second frequency resource sent by the fourth port.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, the receiving unit is further configured to: receive second information, where the second information is used to indicate at least one of the following: the frequency of the reference signal requested by the first device, The transmission method of the reference signal and the type of content included in the location information.

With reference to the fifth aspect, in some implementations of the fifth aspect, the sending unit is further configured to: send a response message for the second information, where the response message is used to indicate at least one of the following: the frequency of the configured reference signal , the transmission mode of the reference signal, and the type of content included in the location information.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, the sending unit is further configured to: send a request message, where the request message is used to request the first device to send the second information.

With reference to the fifth aspect, in some implementations of the fifth aspect, the first information includes location information, and the location information is used to indicate at least one of the following: first phase information, second phase information, third phase information, and fourth phase information; first phase difference information and second phase difference information; third phase difference information and fourth phase difference information; phase difference difference information.

In a possible implementation manner, the first information further includes positioning assistance information, where the positioning assistance information is used to indicate relative positions of the antennas.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, the first information includes a direction angle, where the direction angle is an angle of arrival or an angle of departure, and the direction angle is determined according to the position information, and the position information is used for Indicating at least one of the following: first phase information, second phase information, third phase information, and fourth phase information; first phase difference information and second phase difference information; third phase difference information and fourth phase difference information ; Difference information of phase difference.

In a possible implementation manner, the communication device further includes a processing unit, configured to: determine a direction angle according to position information and positioning assistance information, where the direction angle is an angle of arrival or an angle of departure, and the positioning assistance information is used for Indicates the relative position of the antenna of the end device.

With reference to the fifth aspect, in some implementations of the fifth aspect, the first phase information includes the first phase; the second phase information includes the second phase; the third phase information includes the third phase; the The fourth phase information includes the fourth phase; the first phase difference information includes the first phase difference; the second phase difference information includes the second phase difference; the third phase difference information includes the third phase difference; the fourth phase The difference information includes a fourth phase difference; the difference information of the phase difference includes a difference of the first phase difference or a difference of the second phase difference.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, the receiving unit is further configured to: receive a first reference signal, where the first reference signal is carried on the first frequency resource; receive a second reference signal, where the The second reference signal is carried on the second frequency resource.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, the receiving unit is further configured to: receive a first reference signal, where the first reference signal is jointly carried by the first frequency resource and the second frequency resource.

The beneficial effects of the communication device described in the fifth aspect can refer to the beneficial effects of the method in the first aspect, which will not be repeated here.

According to a sixth aspect, a communication device is provided, including: a sending unit and a receiving unit. The sending unit is used for: sending the reference signal carried on the first frequency resource and the second frequency resource, the first frequency resource is different from the second frequency resource; the receiving unit is used for: receiving the first frequency resource from the terminal device information, the first information is used to indicate the direction angle, and the first information is based on the phase measurement result of the reference signal carried on the first frequency resource and the phase measurement result of the reference signal carried on the second frequency resource Sure.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the reference signal carried on the first frequency resource is received by the first antenna and the second antenna; the reference signal carried on the second frequency resource is received by the The first antenna and the second antenna receive.

The phase measurement result of the reference signal on the first frequency resource is determined according to the first phase and the second phase, the first phase corresponds to the phase of the reference signal on the first frequency resource received by the first antenna, the The second phase corresponds to the phase of the reference signal on the first frequency resource received by the second antenna; the phase measurement result of the reference signal on the second frequency resource is determined according to the third phase and the fourth phase, and the first The three phases correspond to the phases of the reference signal on the second frequency resource received by the first antenna, and the fourth phase corresponds to the phase of the reference signal on the second frequency resource received by the second antenna.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the sending unit is further configured to: respectively send the reference signal on the first frequency resource through the first port and the second port; The port and the fourth port send the reference signal on the second frequency resource.

The phase measurement result of the reference signal on the first frequency resource is determined according to the first phase and the second phase, the first phase corresponds to the phase of the reference signal on the first frequency resource sent by the first port, and the second The phase corresponds to the phase of the reference signal on the first frequency resource sent by the second port; the phase measurement result of the reference signal on the second frequency resource is determined according to the third phase and the fourth phase, and the third phase is the The phase of the reference signal on the second frequency resource sent by the third port, where the fourth phase is the phase of the reference signal on the second frequency resource sent by the fourth port.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the sending unit is further configured to: send a request message, where the request message includes at least one of the following: first frequency information, reference signal transmission mode information, location information The type of content included, the first frequency information is used to indicate the frequency of the optional reference signal; the receiving unit is also used to: receive second information, the second information is used to indicate at least one of the following: The frequency of the reference signal, the transmission method of the reference signal, and the type of content included in the location information.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the sending unit is further configured to: send a response message for the second information, where the response message is used to indicate at least one of the following: the frequency of the configured reference signal , the transmission mode of the reference signal, and the type of content included in the location information.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the reference signal carries identification information, and the identification information is used to identify the reference signal, an antenna for sending the reference signal, or a port for sending the reference signal.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the first device includes a first antenna and a second antenna, the reference signal on the first frequency resource sent by the first port and the reference signal sent by the third port The reference signals on the second frequency resource are all sent through the first antenna, the reference signal on the first frequency resource sent by the second port and the reference signal on the second frequency resource sent by the fourth port Signals are sent through the second antenna.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the sending unit is further configured to: send second information according to first frequency information, where the first frequency information is used to indicate a frequency of an optional reference signal, The second information is used to indicate at least one of the following items: the frequency of the reference signal requested by the first device, information about the transmission manner of the reference signal, and a type of content included in the location information.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the receiving unit is further configured to: receive a response message for the second information, where the response message is used to indicate at least one of the following: the frequency of the configured reference signal , the transmission mode of the reference signal, and the type of content included in the location information.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the receiving unit is further configured to: receive a request message, where the request message is used to request the first device to send the second information.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the first information includes position information, and the position information is used to indicate at least one of the following: first phase information, second phase information, third phase information, and the fourth phase information; the first phase difference information and the second phase difference information; the third phase difference information and the fourth phase difference information; the difference information of the phase difference; the communication device also includes a processing unit, which is used for : Determine the direction angle according to the location information.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the first information includes a direction angle, the direction angle is an angle of arrival or an angle of departure, and the direction angle is determined according to the position information, and the position information is used for Indicating at least one of the following: first phase information, second phase information, third phase information, and fourth phase information; first phase difference information and second phase difference information; third phase difference information and fourth phase difference information ; Difference information of phase difference.

With reference to the sixth aspect, in some implementations of the sixth aspect, the first phase information includes the first phase; the second phase information includes the second phase; the third phase information includes the third phase; the The fourth phase information includes the fourth phase; the first phase difference information includes the first phase difference; the second phase difference information includes the second phase difference; the third phase difference information includes the third phase difference; the fourth phase The difference information includes a fourth phase difference; the difference information of the phase difference includes a difference of the first phase difference or a difference of the second phase difference.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the sending unit is further configured to: send the first reference signal carried on the first frequency resource; send the second reference signal carried on the second frequency resource .

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the sending unit is further configured to: send the first reference signal carried on the first frequency resource and the second frequency resource.

The beneficial effects of the communication device described in the sixth aspect can refer to the beneficial effects of the method in the second aspect, which will not be repeated here.

In a seventh aspect, a communication device is provided, including: a receiving unit and a processing unit. The receiving unit is configured to: receive position information from a terminal device, where the position information is determined based on a phase measurement result of a reference signal carried on a first frequency resource and a phase measurement result of a reference signal carried on a second frequency resource; the The processing unit is used for: determining the departure angle according to the position information.

With reference to the seventh aspect, in some implementations of the seventh aspect, the location information is used to indicate at least one of the following: first phase information, second phase information, third phase information, and fourth phase information; the first Phase difference information and second phase difference information; third phase difference information and fourth phase difference information; phase difference difference information.

With reference to the seventh aspect, in some implementations of the seventh aspect, the first phase information includes the first phase; the second phase information includes the second phase; the third phase information includes the third phase; the The fourth phase information includes the fourth phase; the first phase difference information includes the first phase difference; the second phase difference information includes the second phase difference; the third phase difference information includes the third phase difference; the fourth phase The difference information includes a fourth phase difference; the difference information of the phase difference includes a difference of the first phase difference or a difference of the second phase difference.

For the beneficial effects of the communication device described in the seventh aspect, reference may be made to the beneficial effects of the method in the third aspect, which will not be repeated here.

In an eighth aspect, a communication device is provided, including: a receiving unit and a sending unit. The receiving unit is configured to: receive position information from a terminal device, the position information is determined based on a phase measurement result of a reference signal carried on a first frequency resource and a phase measurement result of a reference signal carried on a second frequency resource, the The location information is used to determine the departure angle; the sending unit is used to: send the location information to the access network device.

With reference to the eighth aspect, in some implementations of the eighth aspect, the location information is used to indicate at least one of the following: first phase information, second phase information, third phase information, and fourth phase information; the first Phase difference information and second phase difference information; third phase difference information and fourth phase difference information; phase difference difference information.

With reference to the eighth aspect, in some implementations of the eighth aspect, the first phase information includes the first phase; the second phase information includes the second phase; the third phase information includes the third phase; the The fourth phase information includes the fourth phase; the first phase difference information includes the first phase difference; the second phase difference information includes the second phase difference; the third phase difference information includes the third phase difference; the fourth phase The difference information includes a fourth phase difference; the difference information of the phase difference includes a difference of the first phase difference or a difference of the second phase difference.

For the beneficial effects of the communication device in the eighth aspect, reference may be made to the beneficial effects of the method in the fourth aspect, which will not be repeated here.

In the ninth aspect, there is provided a communication device, including: a processor, the processor is coupled with a memory, and the memory is used to store a program or an instruction, and when the program or instruction is executed by the processor, the communication device realizes the above-mentioned A method of any possible implementation manner in the first aspect to the fourth aspect.

In a tenth aspect, a chip is provided, the chip includes a processor, the memory for storing computer programs is provided independently of the chip, and the processor is used for executing the computer programs stored in the memory to perform the first to fourth aspects above methods in any possible implementation of .

In an eleventh aspect, a computer program product is provided, and the computer program product includes: computer program code, when the computer program code is run on a computer, it causes the computer to execute any one of the possibilities in the first aspect to the fourth aspect above. method in the implementation.

In a twelfth aspect, a computer-readable storage medium is provided, and a computer program or instruction is stored in the computer-readable storage medium. When the computer program or instruction is executed, any of the above-mentioned first to fourth aspects can be realized. A method in one possible implementation.

In a thirteenth aspect, a communication system is provided, and the communication system includes a terminal device and a first device, where the terminal device is configured to perform the method in any possible implementation manner in the first aspect above; or, the The first device is configured to execute the method in any possible implementation manner of the second aspect above.

In a fourteenth aspect, a communication system is provided, the communication system includes a terminal device, a first device, and a core network device, wherein the terminal device is configured to perform the method in any possible implementation manner in the first aspect above or, the first device is configured to execute the method of any possible implementation of the second aspect above; or, the core network device is configured to execute the method of any possible implementation of the third aspect above Or the core network device is configured to execute the method in any possible implementation manner of the foregoing fourth aspect.

A fifteenth aspect provides a communication system, the communication system includes a terminal device and a first device, wherein the terminal device includes the communication device in any possible implementation manner in the fifth aspect above; or, the The first device includes the communication apparatus in any possible implementation manner of the foregoing sixth aspect.

In a sixteenth aspect, a communication system is provided, where the communication system includes a terminal device, a first device, and a core network device, where the terminal device includes the communication device in any possible implementation manner in the fifth aspect above; Alternatively, the first device includes the communication device in any possible implementation of the sixth aspect above; or, the core network device includes the communication device in any possible implementation of the seventh aspect above or the communication device in any possible implementation of the seventh aspect. The core network equipment includes the communication apparatus in any possible implementation manner of the eighth aspect above.

It can be understood that any communication device, chip, computer program product, computer-readable storage medium, or communication system provided above can be used to implement the corresponding method provided above. Therefore, the benefits it can achieve For the effect, please refer to the beneficial effect in the corresponding method, which will not be repeated here.

Description of drawings

FIG. 1 is a schematic diagram of an application scenario involved in this application.

FIG. 2 is a schematic diagram of another application scenario involved in this application.

FIG. 3 is a schematic diagram of transmission of reference signals by a multi-antenna device.

Fig. 4 is a schematic flowchart of a communication method provided by an embodiment of the present application.

Fig. 5 is a schematic flowchart of another communication method provided by an embodiment of the present application.

FIG. 6 is a schematic flowchart of another communication method provided by an embodiment of the present application.

FIG. 7 is a schematic flowchart of another communication method provided by an embodiment of the present application.

FIG. 8 is a schematic flowchart of another communication method provided by an embodiment of the present application.

FIG. 9 is a schematic flowchart of another communication method provided by an embodiment of the present application.

FIG. 10 is a schematic flowchart of another communication method provided by an embodiment of the present application.

Fig. 11 is a schematic flowchart of another communication method provided by an embodiment of the present application.

Fig. 12 is a schematic flowchart of another communication method provided by an embodiment of the present application.

FIG. 13 is a schematic diagram of a communication device provided by an embodiment of the present application.

FIG. 14 is a schematic diagram of a communication device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

In this application, "at least one" means one or more, and "multiple" means two or more. In addition, in the embodiments of the present application, "first", "second" and various numbers are only for the convenience of description, and are not used to limit the scope of the embodiments of the present application. The sequence numbers of the processes below do not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic, and should not constitute any limitation to the implementation process of the embodiment of the present application. In addition, in the embodiment of the present application, words such as "701", "801", and "901" are only identified for convenience of description, and do not limit the sequence of execution steps.

In the present application, "for indicating" may include both for direct indicating and for indirect indicating. When describing a certain indication information for indicating A, it may include that the indication information directly indicates A or indirectly indicates A, but it does not mean that A must be carried in the indication information. In the embodiment of this application, descriptions such as "when", "in the case of ...", "if" and "if" all mean that the device will make corresponding processing under certain objective circumstances, not The time is limited, and the device is not required to make judgments when it is implemented, nor does it mean that there are other restrictions.

It should be noted that, in this application, words such as "exemplary" or "for example" are used as examples, illustrations or illustrations. Any embodiment or design described herein as "exemplary" or "for example" is not to be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a specific manner.

The technical solution of the embodiment of the present application can be applied to various communication systems, for example: global system of mobile communication (global system of mobile communication, GSM) system, code division multiple access (code division multiple access, CDMA) system, broadband code division multiple access (wideband code division multiple access, WCDMA) system, general packet radio service (general packet radio service, GPRS), long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) Communication System, Fifth Generation (5G) Mobile communication system or new radio access technology (new radio, NR), the technical solution provided by this application can also be applied to future communication systems, such as the sixth generation mobile communication system.

The embodiments of the present application can be applied to terminal devices. A terminal device can be a device that provides voice/data connectivity to users, for example, a handheld device with a wireless connection function, a vehicle device, etc.; it can be a device in the communication of the Internet of Vehicles, such as a communication terminal on a vehicle, a roadside device, etc. The road side unit (RSU) can be a communication terminal carried on a UAV; it can also be a terminal device in an Internet of Things (IoT) system. Terminal equipment may also be called user equipment (user equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

Exemplarily, the terminal device includes but is not limited to: mobile phone (mobile phone), tablet computer, notebook computer, palmtop computer, mobile internet device (mobile internet device, MID), wearable device, virtual reality (virtual reality, VR) device , augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, smart grid Wireless terminals in grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, cellular phones, cordless phones, session initiation protocol ( session initiation protocol (SIP) telephone, wireless local loop (wireless local loop, WLL) station, personal digital assistant (personal digital assistant, PDA), handheld device with wireless communication capabilities, computing device, or other processing device connected to a wireless modem Devices, wearable devices, terminal devices in a 5G network or terminal devices in a future evolving public land mobile network (PLMN), etc., the embodiment of the present application does not limit the specific form of the terminal devices.

The technical solutions in the embodiments of the present application may also be applied to access network equipment. The access network device may be a device capable of connecting a terminal device to a wireless network. The access network device may also be called a radio access network (radio access network, RAN) node, radio access network device, or network device. Exemplarily, the access network device may be a base station.

The base station in the embodiment of the present application can broadly cover various names in the following, or replace with the following names, such as: node B (NodeB), evolved base station (evolved NodeB, eNB), next generation base station (next generation NodeB) , gNB), relay station, access point, transmission point (transmitting and receiving point, TRP), transmission point (transmitting point, TP), master station (master eNodeB, MeNB), secondary station (secondary eNodeB, SeNB), multi-standard Wireless (multi standard radio, MSR) node, home base station, network controller, access node, wireless node, access point (access point, AP), transmission node, transceiver node, base band unit (BBU), Remote radio unit (RRU), active antenna unit (AAU), radio head (remote radio head, RRH), central unit (central unit, CU), distributed unit (distributed unit, DU), positioning nodes, etc. A base station may be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. A base station may also refer to a communication module, modem or chip used to be set in the aforementioned equipment or device. The base station can also be a network-side device in a 6G network, a device that assumes the function of a base station in a future communication system, and the like. Base stations can support networks of the same or different access technologies.

Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move according to the location of the mobile base station. In other examples, a helicopter or drone may be configured to serve as a device in communication with another base station.

The embodiment of the present application does not limit the specific technology and specific equipment form adopted by the access network equipment.

In order to facilitate understanding of the embodiment of the present application, firstly, the applicable application scenarios of the embodiment of the present application are described by taking FIG. 1 and FIG. 2 as examples.

FIG. 1 is a schematic diagram of an application scenario 100 involved in the present application. As shown in FIG. 1 , an application scenario 100 may include two terminal devices, for example, terminal device 110 and terminal device 120 in FIG. 1 . The application scenario 100 mainly involves a sidelink positioning scenario. In this scenario, the terminal device 110 and the terminal device 120 can determine the direction angle through direct communication, so as to complete relative positioning or absolute positioning. When the positions of the terminal device 110 and the terminal device 120 are unknown, the terminal device 110 and the terminal device 120 can determine the direction angle through direct communication, thereby realizing relative positioning; when the absolute position of the terminal device 110 is known or the terminal device 120 120, the terminal device 110 and the terminal device 120 can determine the direction angle through direct communication, thereby realizing absolute positioning.

In the embodiment of the present application, the direction angle may include angle of arrival (AoA) and angle of departure (AOD), where AOA can be understood as the relative direction of the signal transmitted by a single antenna incident on the antenna array Angle; AOD can be understood as the relative direction angle of the signal emitted by the antenna array incident on another antenna.

It should be noted that the terminal device 110 and the terminal device 120 may have multiple antennas, and the terminal device 110 and the terminal device 120 may receive or send reference signals on the multiple antennas.

FIG. 2 is a schematic diagram of an application scenario 200 involved in the present application. As shown in FIG. 2 , the application scenario 200 may include a terminal device 210, an access network device 220, an access network device 230, and a core network device 240, and the terminal device 210 can communicate with the access network device 220 or the access network device 230. Signaling interaction. The application scenario 200 mainly involves the NR positioning scenario, and in this scenario, the locations of the access network device 220 and the access network device 230 are generally known. Therefore, the access network device 220 and the access network device 230 can be used as anchor devices to determine the location of the terminal device 210, and the core network device 240 can be used as a third-party device to participate in solving the orientation angle and sending and receiving location information. The access network device 220 and the access network device 230 may have multiple antennas, and may transmit reference signals on the multiple antennas.

It should be noted that the number of access network devices in FIG. 2 is only for illustration, and this application may also include more access network devices, which is not limited in this application.

It should be understood that the multiple antennas involved in each device in Figure 1 and Figure 2 may be physical antennas at multiple different positions on the device, or virtual antennas formed by the movement of a certain antenna on the device, or a combination of the two , which is not limited in this application. In addition, the application scenarios shown in FIG. 1 and FIG. 2 are only exemplary illustrations, and should not impose any limitation on the present application.

Fig. 3 shows a schematic diagram of transmission of reference signals by a multi-antenna device. For example, FIG. 3 may include device 310 and device 320 . Wherein, the device 310 has multiple antennas, and the device 310 may be the terminal device 110 or the terminal device 120 in FIG. 1 , and the device 310 may also be the access network device 220 or the access network device 230 in FIG. 2 . The device 320 may have multiple antennas or only one antenna. The device 320 may be the terminal device 120 or the terminal device 110 in FIG. 1 , and the device 320 may also be the terminal device 210 in FIG. 2 . It should be noted that when the device 320 has multiple antennas, the device 320 should receive or send the reference signal on the same antenna.

As shown in FIG. 3 , a device 310 and a device 320 perform a relative angle measurement task, wherein the device 310 has, for example, two antennas, marked as antenna 1 and antenna 2 , and the distance between the antennas is d. The two antennas of the device 310 can receive the reference signal sent by the device 320 respectively. Assuming that the reference signal is sent under the frequency resource f, the phase measurement corresponding to the antenna 1 is

The phase measurement corresponding to antenna 2 is

The theoretical calculation formula of the phase measurement value is as follows:

Where, f is the signal frequency, _r1 is the distance from device 320 to antenna 1 of device 310, _r2 is the distance from device 320 to antenna 2 of device 310, c is the reference signal propagation speed, Δt is the distance between device 310 and device 320 θ ₁ is the initial phase of the reference signal of device 310, θ ₂ is the initial phase of the reference signal of device 320, and mod 2π means taking the remainder of 2π.

Subtracting Equation 2 and Equation 1, we can see that the phase difference between antenna 1 and antenna 2 is:

Generally, the distance between device 310 and device 320 is much greater than the size of the antenna aperture on device 310 . Therefore, for the antenna of the device 310, the reference signal between the device 310 and the device 320 can be assumed to be a parallel wave, and its direction angle is represented by θ, then r ₂ −r ₁ =d cosθ. Accordingly, Equation 3 can be written as:

Expand mod 2π in Equation 4 to get:

where k is an integer. Further, we can get:

When the distance d between the two antennas is less than half the wavelength, that is

phase difference

The value range is [0,2π],

The range of values is

The k in formula 6 can only take one value, that is to say, d cosθ can take a unique value, so that the obtained direction angle θ can take a unique value, and there is no problem of ambiguity in angle measurement.

And when the distance between the two antennas is greater than or equal to half the wavelength, that is

The value of k in Formula 6 may not be unique. This means that the value of d cosθ may not be unique, so that the obtained direction angle θ can take multiple values, that is, there is a problem of ambiguity in angle measurement. For example, when

That is, when the distance between the two antennas of the device 310 is one wavelength, k has two values, k is 0 or 1, and both values can obtain a calculation result of a direction angle, that is to say, there are two possible angles The values agree with the measurement results, i.e. the problem of goniometric ambiguity occurs.

It can be seen that the device 310 receives the reference signal under the same frequency resource through two antennas, and the distance d between the antennas is less than half a wavelength

In the case of , the unique value of the direction angle can be determined; and when the antenna spacing d is greater than or equal to half the wavelength

When , the determined direction angle is not unique, and the problem of angle measurement ambiguity may occur.

In the existing protocol, in the NR positioning scenario, in order to solve the problem of ambiguity in angle measurement, the base station reports multiple possible angle measurement results to the LMF, and the LMF synthesizes the angle measurement results of multiple base stations and uses some post-processing algorithms Eliminate erroneous angle measurements and determine the final bearing angle. However, when the number of base stations is small (for example, 2), this method cannot eliminate wrong direction angles, that is, it cannot solve the problem of ambiguity in angle measurement. In addition, the existing protocol does not involve how to solve the problem of angle measurement ambiguity in the sidelink positioning scenario.

Therefore, this application proposes a communication method. By measuring the phase information of reference signals on different frequency resources, a unique direction angle can be determined according to the phase information, so as to solve the problem of ambiguity in angle measurement, especially when the distance between antennas Angle measurement ambiguity at half wavelength or greater.

As shown in FIG. 4, the method 400 involves interaction between a terminal device and a first device.

In an example, if the method 400 is applied to a sidelink positioning scenario, the first device may be a terminal device.

For example, if the method 400 is applied to the sidelink positioning scenario shown in FIG. 1 , the terminal device may be the terminal device 110 shown in FIG. 1 , and the first device may be the terminal device 120 shown in FIG. 1 .

For another example, if the method 400 is applied to the sidelink positioning scenario shown in FIG. 1 , the terminal device may be the terminal device 120 shown in FIG. 1 , and the first device may be the terminal device 110 shown in FIG. 1 .

In another example, if the method 400 is applied to an NR positioning scenario, the first device may be an access network device.

For example, if the method 400 is applied to the NR positioning scenario shown in FIG. 2, the terminal device may be the terminal device 210 in FIG. 2, and the first device may be the access network device 220 or the access network device 220 shown in FIG. device 230 .

For example, the method 400 shown in FIG. 4 may include S401 and S402, and each step in the method 400 will be described in detail below.

S401. The first device sends reference signals on multiple different frequency resources. Correspondingly, the terminal device receives multiple reference signals on different frequency resources.

In a possible implementation manner, the first device may be a single-antenna terminal device or a multi-antenna terminal device. When the first device is a multi-antenna terminal device, the first device transmits the Reference signals on multiple different frequency resources. Correspondingly, the terminal device receives reference signals carried on multiple different frequency resources on multiple antennas.

Exemplarily, the terminal device includes a first antenna and a second antenna, and the terminal device can receive the reference signal carried on the first frequency resource and the second frequency resource through the first antenna, and receive the reference signal carried on the second frequency resource through the second antenna. Reference signals on the first frequency resource and on the second frequency resource, so that the first phase, the second phase, the third phase and the fourth phase can be determined. Wherein, the first phase is the phase of the reference signal of the first frequency resource received by the first antenna, and the second phase is the phase of the reference signal of the first frequency resource received by the second antenna. The third phase is the phase of the reference signal of the second frequency resource received by the first antenna, and the fourth phase is the phase of the reference signal of the second frequency resource received by the second antenna.

In another possible implementation manner, the first device may be a terminal device with multiple antennas, or an access network device with multiple antennas, and each of the multiple antennas may correspond to a corresponding port. The first device may send reference signals carried on multiple different frequency resources through multiple antennas, and correspondingly, the terminal device may receive reference signals carried on multiple different frequency resources sent through different antennas. It can also be understood that the first device may send reference signals carried on multiple different frequency resources through multiple ports, and correspondingly, the terminal device may receive reference signals carried on multiple different frequency resources through different ports. reference signal.

It should be noted that the terminal device may be a single-antenna device and receive the reference signal on only one antenna; the terminal device may also be a terminal device with multiple antennas and receive the reference signal on multiple antennas.

Exemplarily, the first device sends the reference signal on the first frequency resource through the first port and the second port respectively; and sends the reference signal on the second frequency resource through the third port and the fourth port respectively. Correspondingly, the terminal device receives the reference signal on the first frequency resource sent by the first port and the reference signal on the first frequency resource sent by the second port; receives the reference signal on the second frequency resource sent by the third port and The reference signal on the second frequency resource sent by the fourth port can determine the first phase, the second phase, the third phase and the fourth phase. Wherein, the first phase is the received phase of the reference signal on the first frequency resource sent by the first port, and the second phase is the received phase of the reference signal on the first frequency resource sent by the second port; the third The phase is the received phase of the reference signal on the second frequency resource sent by the third port, and the fourth phase is the received phase of the reference signal on the second frequency resource sent by the fourth port.

Optionally, the reference signal may carry identification information, where the identification information is used to identify the reference signal, an antenna for sending the reference signal, or a port for sending the reference signal.

It should be noted that the first device sends the reference signal on multiple different frequency resources, and the reference signal may be respectively carried on the multiple different frequency resources, or may be jointly carried by the multiple different frequency resources. That is to say, the terminal device can receive multiple different reference signals, and the multiple different reference signals are carried on multiple different frequency resources; the terminal device can also receive one reference signal, and the one reference signal can be composed of multiple different frequency resources. Frequency resources are jointly carried.

Exemplarily, the first device may send reference signals carried on the first frequency resource and the second frequency resource, and the terminal device may receive the reference signals carried on the first frequency resource and the second frequency resource. That is to say, the terminal device can respectively receive the first reference signal and the second reference signal, the first reference signal is carried on the first frequency resource, and the second reference signal is carried on the second frequency resource; the terminal device can also receive A first reference signal, where the first reference signal is jointly carried by the first frequency resource and the second frequency resource.

It should be understood that in this embodiment of the application, frequency resources may refer to frequency resources at the resource element (resource element, RE) level, or to frequency resources at the part bandwidth (bandwidth part, BWP) level, or to The frequency resources at the component carrier (component carrier, CC) level are not limited in this application.

S402. The terminal device sends first information. Correspondingly, the first device receives first information from the terminal device.

The first information may be used to indicate a direction angle. It should be understood that the first information may directly indicate the direction angle, that is, the first information is the direction angle, or the first information may indirectly indicate the direction angle, that is, the first information carries information for determining the direction angle (for example, position information).

The first information may be determined based on a reference signal carried on the first frequency resource and a reference signal carried on the second frequency resource. Furthermore, the first information may be determined based on a phase measurement result of the reference signal carried on the first frequency resource and a phase measurement result of the reference signal carried on the second frequency resource.

Optionally, the phase measurement result of the reference signal on the first frequency resource is determined according to the first phase and the second phase, the first phase is the phase of the reference signal of the first frequency resource received by the first antenna, and the second The phase is the phase of the reference signal of the first frequency resource received by the second antenna; the phase measurement result of the reference signal on the second frequency resource is determined according to the third phase and the fourth phase, and the third phase is the phase received by the first antenna The phase of the reference signal of the second frequency resource is received, and the fourth phase is the phase of the reference signal of the second frequency resource received by the second antenna.

Optionally, the phase measurement result of the reference signal on the first frequency resource is determined according to the first phase and the second phase, and the first phase is the received phase of the reference signal on the first frequency resource sent by the first port , the second phase is the received phase of the reference signal on the first frequency resource transmitted by the second port; the phase measurement result of the reference signal on the second frequency resource is determined according to the third phase and the fourth phase, and the third The phase is the received phase of the reference signal on the second frequency resource sent by the third port, and the fourth phase is the received phase of the reference signal on the second frequency resource sent by the fourth port.

In an example, the first information may include position information and positioning assistance information, where the positioning assistance information is used to indicate relative positions of the first antenna and the second antenna of the terminal device. The specific content involved in this part can be described in detail with reference to the embodiment in FIG. 5 below, and will not be repeated here.

In an example, the first information may be a direction angle, and the direction angle may be an arrival angle. The specific content involved in this part may be described in detail with reference to the embodiment in FIG. 6 below, and will not be repeated here.

In an example, the first information may include location information, and the first device may determine a direction angle according to the received location information and its own positioning assistance information, and the direction angle is a departure angle, and the positioning assistance information is used to indicate that the first device The relative position of the device's first and second antennas. The specific content involved in this part can be described in detail with reference to the embodiments in FIG. 7 , FIG. 9 , and FIG. 10 below, and will not be repeated here.

Optionally, the terminal device may send location information to the first device, that is, the first information includes location information, and the first device may determine a direction angle according to the location information and its own positioning assistance information, and the direction angle is the departure angle. The positioning assistance information is used to indicate the relative position of the antenna of the first device.

If the first device is a terminal device, the terminal device may directly send location information to the first device. That is, communication is directly performed between the terminal device and the first device.

If the first device is an access network device, the terminal device may send location information to the access network device through the core network device. That is, the terminal device first sends the location information to the core network device, and then the core network device forwards the location information to the first device.

In an example, the first information may be a direction angle, and the direction angle may be a departure angle. The specific content involved in this part will be described in detail in conjunction with the embodiment in FIG. 8 , and will not be repeated here.

Optionally, the terminal device may receive positioning assistance information sent by the first device before sending the first information, where the positioning assistance information is used to indicate the relative position of the antenna of the first device. The terminal device may determine a direction angle according to the location information and the positioning assistance information, and the direction angle is the departure angle, and send the departure angle to the first device, that is, the first information includes the departure angle.

It should be understood that the location information is used to indicate at least one of the following: first phase information, second phase information, third phase information, and fourth phase information; first phase difference information and second phase difference information; third phase difference information and fourth phase difference information; difference information of phase difference. Wherein, the first phase difference information is obtained according to the first phase and the second phase, the second phase difference information is obtained according to the third phase and the fourth phase, and the third phase difference information is obtained according to the first phase and the third phase Thus, the fourth phase difference information is obtained according to the second phase and the fourth phase, and the phase difference difference information is obtained according to the first phase, the second phase, the third phase and the fourth phase.

Further, the first phase information includes the first phase; the second phase information includes the second phase; the third phase information includes the third phase; the fourth phase information includes the fourth phase; the first phase difference information includes the first phase difference; The second phase difference information includes the second phase difference; the third phase difference information includes the third phase difference; the fourth phase difference information includes the fourth phase difference; the difference value information of the phase difference includes the difference value of the first phase difference or the second phase difference The difference in phase difference. Wherein, the first phase difference is the phase difference between the first phase and the second phase; the second phase difference is the phase difference between the third phase and the fourth phase; the third phase difference is the phase difference between the first phase and the third phase; The fourth phase difference is the phase difference between the second phase and the fourth phase; the difference between the first phase difference is the difference between the first phase difference and the second phase difference; the difference between the second phase difference is the third phase difference and The difference of the fourth phase difference.

As an example and not a limitation, the first device sends reference signals on two frequency resources, and the corresponding frequency resources are f ₁ and f ₂ respectively, then the phase differences between the two antennas of the terminal device on these two frequency resources are respectively for:

Subtract Equation 7 and Equation 8 to get:

Expand mod 2π in Equation 9 to get:

Further, we can get:

When the distance between the two antennas

when

phase difference

The value range is [0,2π],

The range of values is

The k in formula 11 can only take one value, that is, d cosθ can take a unique value, so that the obtained direction angle θ can take a unique value, and there is no problem of ambiguity in angle measurement.

When f ₂ -f ₁ is much smaller than f ₁ and f ₂ ,

is far greater than

and

That is, the distance between the antennas can be in a larger range, achieving no angular ambiguity.

For example, _f1 is 3GHz and _f2 is 3.1GHz, then

That is to say, if only the phase at frequency f ₁ or f ₂ is used for angle measurement, then in order to obtain a unique direction angle, the distance between the antennas must be less than 5cm. If the phases at frequencies f ₁ and f ₂ are used for angle measurement at the same time, as long as the antenna distance is less than 150cm, a unique direction angle can be obtained, which can solve the problem of ambiguity in angle measurement.

In the embodiment of the present application, the terminal device receives reference signals carried on different frequency resources, and sends first information indicating the direction angle, so that other devices can obtain the direction angle according to the first information. Since the first information is determined based on the phase measurement results of the reference signals carried on different frequency resources, and the first information is used to indicate the direction angle, it can be understood that the direction angle is also based on the phase measurement results of the reference signals carried on different frequency resources The result is determined, so whether in NR or sidelink positioning scenarios, the obtained direction angle is unique, which can solve the problem of ambiguity in angle measurement.

Fig. 5 is a schematic flowchart of another communication method provided by an embodiment of the present application. The method 500 shown in FIG. 5 may include S501 to S507, which mainly involves that in the sidelink positioning scenario, the terminal device 520 (an example of the first device described in FIG. 4 ) transmits the information carried by multiple different frequency resources through the same antenna. After the terminal device 510 (an example of the terminal device described in FIG. 4 ) receives the reference signals carried on multiple different frequency resources through multiple antennas, it can measure the reference signals carried on multiple different frequency resources. The phase information is obtained from the reference signal, and the phase information is sent to the terminal device 520, and the terminal device 520 completes the calculation of the angle of arrival according to the phase information. Each step in the method 500 is described in detail below.

S501, the terminal device 520 sends a request message, and correspondingly, the terminal device 510 receives the request message.

Wherein, the request message is used to request the interaction of the second information with the terminal device 510, that is, to request the interaction of configuration information and capability information with the terminal device 510, and the configuration information may include the information of the first frequency resource and the information of the reference signal. Sending mode information, the capability information may include the type of content included in the location information.

Exemplarily, the request message includes at least one of the following: first frequency information, reference signal transmission manner information, and type of content included in the location information.

The first frequency information is used to indicate the frequency of the optional reference signal, that is, the first frequency information can indicate which/which frequency resources the terminal device 520 uses to send the reference signal, and further, the terminal device 510 can transmit the reference signal according to the The frequency resource determines if there is an angular ambiguity problem.

The information about the transmission manner of the reference signal may include a frequency hopping transmission manner or a carrier aggregation transmission manner. The frequency hopping transmission method can be understood as time-division transmission of reference signals carried on multiple different frequency resources. For example, the terminal device 520 first transmits the first reference signal carried on the first frequency resource, and then sends the reference signal carried on the second frequency resource. on the second reference signal. The carrier aggregation sending manner can be understood as sending reference signals carried on multiple different frequency resources, for example, the terminal device 520 sends a first reference signal carried on a first frequency resource and a second frequency resource.

The type of content included in the location information may include phase information, phase difference information, or phase difference difference information.

S502, the terminal device 510 sends configuration information and capability information to the terminal device 520. Correspondingly, the terminal device 520 receives the configuration information and capability information sent by the terminal device 510 .

Before S502, the terminal device 510 may determine whether the antenna spacing of the terminal device 510 is greater than or equal to half a wavelength according to the first frequency information, so as to determine whether there is an angle measurement ambiguity problem.

Optionally, when the first frequency information includes a single frequency resource, the terminal device 510 may determine whether its own antenna spacing is greater than or equal to half a wavelength according to the single frequency resource. If the terminal device 510 determines that the distance between its own antennas is less than half a wavelength under the frequency resource, that is, the reference signal sent by the terminal device 510 under the frequency resource will not have the problem of angle measurement ambiguity, then the terminal device 510 can instruct the terminal device 520 A reference signal is transmitted under the single frequency resource. If the terminal device 510 determines that the distance between its own antennas is greater than or equal to half a wavelength under the single frequency resource, that is, the reference signal sent by the terminal device 510 under the frequency resource has a problem of angle measurement ambiguity, then the terminal device 510 can send a message to the terminal device 520 Send the recommendation/requirement information of the reference signal frequency resource, which is used to indicate that the terminal device 520 can send the reference signal on multiple frequency resources. It should be noted that the recommendation/requirement information of the reference signal frequency resource may indicate the frequency range of the reference signal sent by the terminal device 520, and the range may be the upper limit of the frequency, or the lower limit of the frequency, or the upper limit and the lower limit of the frequency. Lower limit; the recommendation/requirement information of the reference signal frequency resource may also indicate the range of the frequency difference between the frequency resources used by the terminal device 520 to send the reference signal, the range may be the upper limit of the frequency difference, or the lower limit of the frequency difference, There may also be upper and lower limits for the frequency difference.

Optionally, when the first frequency information includes multiple frequency resources, the terminal device 510 may determine whether, under the multiple frequency resources, the distance between its own antennas is greater than or equal to half a wavelength. If the terminal device 510 determines that the distance between the antennas of the terminal device 510 is less than half a wavelength in a certain frequency resource among the multiple frequency resources, then the terminal device 510 determines that there will be no angle measurement ambiguity in sending the reference signal under the certain frequency resource The problem. Therefore, the terminal device 510 may instruct the terminal device 520 to send the reference signal on a certain frequency resource among the multiple frequency resources. If the terminal device 510 determines that the distance between its own antennas is greater than or equal to half a wavelength under the multiple frequency resources, the terminal device 510 determines that there is an angle measurement ambiguity problem in sending reference signals under the multiple frequency resources. Therefore, the terminal device 510 may send the recommendation/requirement information of reference signal frequency resources to the terminal device 520, for instructing the terminal device 520 to send reference signals on multiple frequency resources. It should be noted that the recommendation/requirement information of the reference signal frequency resource may indicate the frequency range of the reference signal sent by the terminal device 520, and the range may be the upper limit of the frequency, or the lower limit of the frequency, or the upper limit and the lower limit of the frequency. Lower limit; the recommendation/requirement information of the reference signal frequency resources may also indicate the range of the frequency difference between the frequency resources used by the terminal device 520 to send the reference signal, the range may be the upper limit of the frequency difference, or the lower limit of the frequency difference, There may also be upper and lower limits for the frequency difference.

In S502, the terminal device 510 may send configuration information and capability information, that is, second information, to the terminal device 520. The configuration information and capability information include at least one of the following: recommendation/requirement information of reference signal frequency resources, transmission of reference signals The type of content included in the mode information and the location information, wherein the recommendation/requirement information of the reference signal frequency resource is the frequency of the reference signal requested by the terminal device 510 .

Optionally, the configuration information and capability information may carry the above recommendation/requirement information of the reference signal frequency resource. For example: the configuration information and capability information may indicate that the terminal device 520 chooses to send reference signals on one or some frequency resources. Specifically, the information may indicate the frequency range for the terminal device 520 to send the reference signal, and the range may be the upper limit of the frequency, or the lower limit of the frequency, or the upper limit and the lower limit of the frequency; the message may also indicate that the terminal device 520 The range of the frequency difference between the frequency resources for sending the reference signal, the range may be the upper limit of the frequency difference, the lower limit of the frequency difference, or the upper limit and the lower limit of the frequency difference.

Optionally, the configuration information and capability information may also carry information about a transmission mode of the recommended reference signal, and the transmission mode may be a frequency hopping transmission mode or a carrier aggregation transmission mode, which is not limited in this application.

Optionally, the configuration information and capability information may also indicate the type of content included in the location information reported by the terminal device 510, for example, whether the content included in the reported location information is phase information, phase difference information, or phase difference difference information, or a combination of the above three types of information, which is not limited in this application.

Optionally, the method 500 may further include S503: the terminal device 520 sends a response message to the terminal device 510 .

The response message is used to respond to whether to agree to send the reference signal according to the configuration information and capability information provided by the terminal device 510 . That is to say, the response message is used to indicate at least one of the following items: the frequency of configuring the reference signal, the transmission mode of the reference signal, and the type of content included in the location information.

If the terminal device 520 fully complies with the configuration and capability information sent by the terminal device 510, the terminal device 520 may not execute S503, that is, not send a response message. If the terminal device 510 does not receive the response message sent by the terminal device 520, it may determine that the terminal device 520 agrees to send the reference signal according to the configuration information and capability information provided by the terminal device 510; the terminal device 520 may also send a response message to the terminal device 510 message, the response message is used to instruct the terminal device 510, and the terminal device 520 agrees to send the reference signal according to the configuration information and capability information provided by the terminal device 510. Exemplarily, the response message may be directly represented by a flag bit.

If the terminal device 520 does not fully comply with the configuration and capability information sent by the terminal device 510, the terminal device 520 may send a response message to the terminal device 510, and the response message is used to indicate at least one of the following: configured frequency resource information, transmission of reference signals The type of content included in the method and location information.

Through S501 to S503, the terminal device 510 and the terminal device 520 can complete the interaction of configuration information and capability information, that is, complete the interaction of the second information, so that the frequency resource information of the reference signal, the transmission mode and location of the reference signal can be determined The information includes information such as the type of content.

S504, the terminal device 520 sends reference signals on multiple different frequency resources. Correspondingly, the terminal device 510 may receive reference signals on multiple different frequency resources.

It should be understood that the terminal device 520 may be a single-antenna device or a multi-antenna device. When the terminal device 520 has multiple antennas, the terminal device 520 should at least send the reference signal on the same antenna. The terminal device 510 may receive reference signals carried on different frequency resources on multiple antennas.

The terminal device 520 can transmit reference signals on multiple different frequency resources according to the frequency resource information determined in S501 to S503, and the transmission mode of the reference signal can be a frequency hopping transmission mode or a carrier aggregation transmission mode. This application There is no limit to this.

S505, the terminal device 510 measures the phase of the reference signal sent by the terminal device 520 on multiple antennas, and determines position information.

It should be understood that the terminal device 510 may receive and measure reference signals sent by the terminal device 520 on multiple antennas and carried on multiple different frequency resources to obtain phase information, thereby determining location information. In addition, the reference signal may carry identification information, and the identification information is used to identify the reference signal.

It should be understood that the manner in which the terminal device 510 measures the phase may be simultaneous measurement by multiple antennas, or measurement by switching antennas, which is not limited in this application.

It should also be understood that the position information is used to indicate at least one of the following: first phase information, second phase information, third phase information, and fourth phase information; first phase difference information and second phase difference information; third phase The difference information and the fourth phase difference information; the difference information of the phase difference. Wherein, the first phase difference information is obtained according to the first phase and the second phase, the second phase difference information is obtained according to the third phase and the fourth phase, and the third phase difference information is obtained according to the first phase and the third phase Thus, the fourth phase difference information is obtained according to the second phase and the fourth phase, and the phase difference difference information is obtained according to the first phase, the second phase, the third phase and the fourth phase.

Optionally, the location information may include phase information, where the phase information includes a phase, an antenna identifier and a frequency resource identifier associated with the phase.

This phase can be expressed as

That is, the terminal device 510 receives the reference signal on the mth antenna, and measures the obtained phase under the reference signal of the nth frequency resource. That is to say, the phase needs to be associated with an antenna identifier and a frequency resource identifier at the same time, that is, on which antenna the terminal device 510 receives the reference signal, and on which frequency resource the reference signal is measured to obtain the phase.

Optionally, the location information may include phase difference information.

The phase difference information includes a phase difference, two antenna identifiers associated with the phase difference, and a frequency resource identifier. This phase difference can be expressed as

That is, the terminal device 510 receives the reference signal on the mth antenna and the hth antenna, and measures the phase difference obtained from the reference signal on the nth frequency resource. Specifically, the

It can be expressed as:

or

That is, the phase difference can be obtained by directly making the difference between two phases, or it can be a value obtained by mod 2π operation on the obtained phase difference. That is to say, the phase difference needs to be associated with two antenna identifiers and a frequency resource identifier at the same time, that is, on which two antennas the terminal device 510 receives the reference signal, and under which frequency resource the reference signal is measured to obtain the phase difference value. Exemplarily, h=m+1, that is, the phase difference information of two adjacent antennas is reported.

The phase difference information also includes a phase difference, two frequency resource identifiers and an antenna identifier associated with the phase difference. This phase difference can be expressed as

That is, the terminal device 510 receives the reference signal on the m-th antenna, and measures the phase difference obtained under the reference signal of the n-th frequency resource and the w-th frequency resource. Specifically, the

It can be expressed as:

or

That is, the phase difference can be obtained by directly making the difference between two phases, or it can be a value obtained by mod 2π operation on the obtained phase difference. That is to say, the phase difference needs to be associated with one antenna ID and two frequency resource IDs at the same time. Exemplarily, w=n+1, that is, to report phase difference information under two adjacent frequency resources of the same antenna. Optionally, the position information may include difference information of the phase difference.

The difference information of the phase difference includes the difference of the phase difference, the two antenna identifiers and the two frequency resource identifiers associated with the difference of the phase difference, and the difference of the phase difference can be expressed as

Specifically, the

It can be expressed as:

or

That is, this is the difference between the phase difference between the mth antenna and the hth antenna of the terminal device 510 under the nth frequency resource and the phase difference under the wth frequency resource or the difference between the obtained phase differences The value obtained by mod 2π operation. Exemplarily, h=m+1, w=n+1, that is, difference information of phase differences between two adjacent antennas under two adjacent frequency resources.

Specifically, the

It can be expressed as:

or

That is, this is the phase difference between the mth antenna of the terminal device 510 under the nth frequency resource and the wth frequency resource respectively, and the phase difference between the hth antenna under the nth frequency resource and the wth frequency resource respectively The difference value or the value obtained by mod 2π operation on the obtained phase difference difference. Exemplarily, h=m+1, w=n+1, that is, difference information of phase differences between two adjacent antennas under two adjacent frequency resources.

It should be noted that, in addition to the antenna ID or frequency resource ID, the phase difference information and the phase difference information must also indicate the order of phase difference or the order of phase difference, that is, the phase can be indicated by displaying an indication The sequence of making phase difference or the sequence of making phase difference may also indicate the sequence of making phase difference or the sequence of making phase difference by implicit indication.

In an example, when the terminal device 510 sends the location information, it can also send indication information, which can directly indicate which two phases the phase difference information is obtained by making a difference, and which two phase difference information is the phase difference. The phase difference is obtained by doing the difference.

In another example, the terminal device 510 and the terminal device 520 may pre-specify rules, specifying that the order of making difference is the previous antenna ID/frequency resource ID minus the following antenna ID/frequency resource ID, or specifying that the order of difference The sequence is the following antenna ID/frequency resource ID minus the previous antenna ID/frequency resource ID. For example, the first phase difference information includes the first phase difference, the first frequency resource identifier (f ₁ ), the first antenna identifier (r ₁ ), and the second antenna identifier (r ₂ ). Then according to the prescribed rules, assuming that the order of making the difference is the preceding antenna identification minus the following antenna identification, then according to the first phase difference, it can be determined as the phase of the reference signal on the first frequency resource on the first antenna minus The phase of the reference signal on the first frequency resource on the second antenna can be represented by (r ₁ -r ₂ , f ₁ ).

In yet another example, each value in the phase difference information or phase difference information has an antenna identifier and a frequency resource identifier, instead of using a common identifier, that is, each phase difference information or phase difference The difference value information of , carries an identification list, which is used to indicate which antenna and which frequency resource the value is obtained from. For example, the first phase difference information includes the first phase difference, the first frequency resource identifier (f ₁ ), the first antenna identifier (r ₁ ), and the second antenna identifier (r ₂ ). When reporting the first phase difference information, it can be represented by two identification lists, the first list is a list of antenna identification (first antenna r ₁ , second antenna r ₂ ), and the second list is a list of frequency resource identification (the first frequency resource f ₁ , the first frequency resource f ₁ ), that is, it can be represented by (r ₁ , f ₁ )-(r ₂ , f ₁ ).

It can be understood that the position information may be at least one item of phase information, phase difference information, and phase difference difference information. That is to say, the location information may include the phase, the phase difference, and the difference information of the phase difference, or may only include one or more kinds of information.

Exemplarily, assuming that the terminal device 510 has two antennas, and the terminal device 520 transmits reference signals on two different frequency resources through the same antenna, the two antennas of the terminal device 510 can measure the reference signals on the two different frequency resources respectively. Reference signal, get the phase value shown in Table 1.

Wherein, the first phase is the phase obtained by the terminal device 510 by measuring the reference signal carried on the first frequency resource received by the first antenna, that is, the first phase corresponds to the phase of the reference signal received by the first antenna on the first frequency resource The second phase is the phase obtained by the terminal device 510 measuring the reference signal carried on the first frequency resource received by the second antenna, that is, the second phase corresponds to the phase of the reference signal received by the second antenna on the first frequency resource; The third phase is the phase obtained by the terminal device 510 by measuring the reference signal carried on the second frequency resource received by the first antenna, that is, the third phase corresponds to the phase of the reference signal received by the first antenna on the second frequency resource; The four phases are phases obtained by the terminal device 510 by measuring the reference signal received by the second antenna and carried on the second frequency resource, that is, the fourth phase corresponds to the phase of the reference signal received by the second antenna on the second frequency resource.

Table 1

the	第一天线first antenna	第二天线second antenna
第一频率资源first frequency resource	第一相位first phase	第二相位second phase
第二频率资源second frequency resource	第三相位third phase	第四相位fourth phase

As shown in Table 1, the location information sent by the terminal device 510 is used to indicate at least one of the following: first phase information, second phase information, third phase information, and fourth phase information; first phase difference information and second phase information Difference information; third phase difference information and fourth phase difference information; difference information of the first phase difference; difference information of the second phase difference.

Wherein, the first phase information includes the first phase and the identifier of the first frequency resource, and the first phase information also includes the identifier of the first antenna or the identifier of the reference signal received on the first frequency resource through the first antenna; the second phase The information includes the second phase and the identifier of the first frequency resource, and the second phase information also includes the identifier of the second antenna or the identifier of the reference signal received on the first frequency resource through the second antenna; the third phase information includes the third phase and the identifier of the second frequency resource, the third phase information also includes the identifier of the first antenna or the identifier of the reference signal received on the second frequency resource through the first antenna; the fourth phase information includes the fourth phase and the identifier of the second frequency resource The fourth phase information further includes an identifier of the second antenna or an identifier of a reference signal received by the second antenna on the second frequency resource.

The first phase difference information includes the first phase difference, the identifier of the first frequency resource, the identifier of the first antenna, and the identifier of the second antenna, or, the first phase difference information includes the first phase difference, the identifier of the first frequency resource, An identifier of the reference signal received on the first frequency resource through the first antenna and an identifier of the reference signal received on the first frequency resource through the second antenna. Wherein, the first phase difference is a phase difference between the first phase and the second phase.

The second phase difference information includes the second phase difference, the identifier of the second frequency resource, the identifier of the first antenna, and the identifier of the second antenna, or the second phase difference information includes the second phase difference, the identifier of the second frequency resource, An identifier of the reference signal received on the second frequency resource through the first antenna and an identifier of the reference signal received on the second frequency resource through the second antenna. Wherein, the second phase difference is a phase difference between the third phase and the fourth phase.

The third phase difference information includes the third phase difference, an identifier of the first frequency resource, and an identifier of the second frequency resource, and the third phase difference information further includes an identifier of the first antenna or an identifier of a reference signal received through the first antenna. Wherein, the third phase difference is a phase difference between the first phase and the third phase.

The fourth phase difference information includes the fourth phase difference, an identifier of the first frequency resource, and an identifier of the second frequency resource, and the fourth phase difference information further includes an identifier of the second antenna or an identifier of a reference signal received through the second antenna. Wherein, the fourth phase difference is a phase difference between the second phase and the fourth phase.

The difference information of the first phase difference includes the difference of the first phase difference, the identifier of the first frequency resource, the identifier of the second frequency resource, the identifier of the first antenna, and the identifier of the second antenna, or the identifier of the first phase difference The difference information includes the difference of the first phase difference, the identifier of the first frequency resource, the identifier of the second frequency resource, the identifier of the reference signal received through the first antenna, and the identifier of the reference signal received through the second antenna. Wherein, the difference of the first phase difference is the difference between the first phase difference and the second phase difference.

The difference information of the second phase difference includes the difference of the second phase difference, the identifier of the first frequency resource, the identifier of the second frequency resource, the identifier of the first antenna, and the identifier of the second antenna, or the identifier of the second phase difference The difference information includes the difference of the second phase difference, the identifier of the first frequency resource, the identifier of the second frequency resource, the identifier of the reference signal received through the first antenna, and the identifier of the reference signal received through the second antenna. Wherein, the difference of the second phase difference is the difference between the third phase difference and the fourth phase difference.

It should be noted that the above-mentioned antenna identifier may also be represented by a port identifier. That is to say, the identification information carried in the reference signal can be used to identify the reference signal, can also be used to identify the antenna receiving the reference signal, and can also be used to identify the port receiving the reference signal. For example, the terminal equipment includes a first antenna and a second antenna, and the reference signal on the first frequency resource received by the first port and the reference signal on the second frequency resource received by the third port are reference signals received through the first antenna. The reference signal on the first frequency resource received by the second port and the reference signal on the second frequency resource received by the fourth port are reference signals received through the second antenna. In this case, the identifier of the first antenna may be replaced by the first port identifier and the third port identifier, and the identifier of the second antenna may be replaced by the second port identifier and the fourth port identifier.

It should be understood that the terminal device 520 can also send reference signals on more resource frequencies, and the terminal device 510 can also use more antennas to receive reference signals on more frequency resources sent by the terminal device 520, and measure the reference signals phase, which is not limited in this application.

S506, the terminal device 510 sends the location information and positioning assistance information to the terminal device 520. Correspondingly, the terminal device 520 receives the location information and positioning assistance information sent by the terminal device 510 .

It should be understood that the terminal device 510 may send the location information measured through S505 to the terminal device 520 . For content related to the location information, reference may be made to the description in S505, which will not be repeated here.

Optionally, the terminal device 510 may also send positioning assistance information to the terminal device 520, where the positioning assistance information is used to indicate the relative position of the antenna of the terminal device 510.

If the terminal device 510 includes two antennas identified as the first antenna and the second antenna, the positioning assistance information is used to indicate the relative positions of the first antenna and the second antenna. If the terminal device 510 includes three antennas identified as a first antenna, a second antenna, and a third antenna, the positioning assistance information is used to indicate relative positions of the first antenna, the second antenna, and the third antenna. It should be understood that, while reporting the positioning assistance information, it may also indicate the relative positions of which two antennas the positioning assistance information is. The indication method also includes explicit indication or implicit indication, that is, indication information can also be reported while reporting positioning assistance information, and the indication information is used to indicate the relative positions of which two antennas the positioning assistance information is, or, according to the positioning assistance information The order in which the auxiliary information is reported determines the relative positions of which two antennas.

It should be noted that the relative positions of the antennas may be the distance between the antennas, or the position coordinates of each antenna under a certain coordinate. For example, when multiple antennas form a linear array, the distance between the antennas can be given; when multiple antennas form a planar array, specific position coordinates need to be given.

The distance or position coordinates may be in the form of absolute values, and the units of the coordinates may be millimeters, centimeters, decimeters, meters, etc. The distance and position can also be converted by the wavelength value at a certain frequency. For example, if the distance between the first antenna and the second antenna is 10cm, and the reference wavelength is 10cm, then 1 can be used to represent the distance.

It can be understood that the positioning assistance information in S505 may be sent to the terminal device 520 through one signaling together with the location information, or may be sent to the terminal device 520 through multiple signalings, and the sending order of the positioning assistance information is not limited. Optionally, the positioning assistance information may also be sent to the terminal device 520 in S502, which is not limited in this application.

S507, the terminal device 520 calculates the angle of arrival.

In this step, the terminal device 520 may calculate the angle of arrival according to the received position information and positioning assistance information, where the positioning assistance information is used to indicate the relative position of the antenna of the terminal device 510 .

In an example, if the location information includes the first phase information, the second phase information, the third phase information, and the fourth phase information, and the positioning assistance information includes the relative positions of the first antenna and the second antenna, the terminal device 520 may, according to Equation 3, Equation 7, Equation 8, and Equation 10 determine the angle of arrival.

In another example, if the location information includes first phase difference information and second phase difference information, or third phase difference information and fourth phase difference information, and the positioning assistance information includes relative positions of the first antenna and the second antenna, Then the terminal device 520 can determine the angle of arrival according to formula 7, formula 8 and formula 10.

In yet another example, if the location information includes the difference information of the first phase difference or the difference information of the second phase difference, and the positioning assistance information includes the relative positions of the first antenna and the second antenna, then the terminal device 520 may use the formula 10 Determine the angle of arrival.

In this embodiment of the present application, the terminal device can measure the phases of reference signals carried on multiple different frequency resources through different antennas, determine the location information, and send the location information to the first device, so that the first device can A unique angle of arrival is determined according to the location information and the positioning assistance information, thereby solving the problem of ambiguity in angle measurement.

FIG. 6 is a schematic flowchart of another communication method provided by an embodiment of the present application. The method 600 shown in FIG. 6 may include S601 to S606, which mainly involves that in a sidelink positioning scenario, the terminal device 620 (an example of the first device described in FIG. 4 ) transmits reference signals on different frequency resources through the same antenna, After the terminal device 610 (an example of the terminal device described in FIG. 4 ) receives the reference signals carried on multiple different frequency resources through multiple antennas, it can measure the reference signals carried on multiple different frequency resources to obtain the phase information, and complete the calculation of the angle of arrival based on the phase information. Each step in the method 600 is described in detail below.

S601, the terminal device 620 sends a request message to the terminal device 610. Correspondingly, the terminal device 610 receives the request message sent by the terminal device 620 .

S602, the terminal device 610 sends configuration information and capability information to the terminal device 620. Correspondingly, the terminal device 620 receives the configuration information and capability information sent by the terminal device 610 .

S603, the terminal device 620 sends a response message to the terminal device 610. Correspondingly, the terminal device 610 receives the response message sent by the terminal device 620 .

S604, the terminal device 620 sends reference signals on multiple different frequency resources. Correspondingly, the terminal device 610 may receive reference signals on multiple different frequency resources.

S605, the terminal device 610 measures the phases of the reference signals sent by the terminal device 620 on multiple antennas, and determines location information.

S601 to S605 may refer to S501 to S505, and for the sake of brevity, details are not repeated here.

S606, the terminal device 610 calculates the angle of arrival.

In this step, the terminal device 610 may calculate the angle of arrival according to the position information and its own positioning assistance information, where the positioning assistance information is used to indicate the relative position of the antenna of the terminal device 610 . For the specific content of calculating the angle of arrival, reference may be made to S507, which will not be repeated here.

S606, the terminal device 610 sends the calculated angle of arrival to the terminal device 620. Correspondingly, the terminal device 620 receives the angle of arrival sent by the terminal device 610 .

In this embodiment of the application, the terminal device can measure the phases of reference signals carried on multiple different frequency resources through different antennas to determine the location information, so that the terminal device can determine a unique angle of arrival according to the location information, and use the The angle of arrival is sent to the first device. Since the angle of arrival is unique, the problem of ambiguity in angle measurement can be solved.

FIG. 7 is a schematic flowchart of another communication method provided by an embodiment of the present application. The method 700 shown in FIG. 7 may include S701 to S707, which mainly involves that in the sidelink positioning scenario, the terminal device 720 (an example of the first device described in FIG. After receiving reference signals on multiple different frequency resources through the same antenna, the terminal device 710 (an example of the terminal device described in FIG. 4 ) can measure the frequency on the multiple different frequency resources. The phase information is obtained from the reference signal, and the phase information is sent to the terminal device 720, and the terminal device 720 completes the calculation of the departure angle according to the phase information. Each step in the method 700 is described in detail below.

S701, the terminal device 710 sends a request message to the terminal device 720 . Correspondingly, the terminal device 720 receives the request message sent by the terminal device 710 .

It should be understood that S701 is an optional step. When the terminal device 710 initiates a direction angle measurement request, or initiates a positioning request, the terminal device 710 needs to send a request message to the terminal device 720 .

Exemplarily, the request message includes at least one of the following: frequency resource information of the reference signal that the terminal device 710 can receive, information about the transmission mode of the reference signal, and type of content included in the location information.

S702, the terminal device 720 sends configuration information and capability information to the terminal device 710. Correspondingly, the terminal device 710 receives the configuration information and capability information sent by the terminal device 720 .

For the specific content of this step, reference may be made to S502.

In S702, the terminal device 720 may send configuration information and capability information, that is, second information, to the terminal device 710. The configuration information and capability information include at least one of the following: recommendation/requirement information of reference signal frequency resources, transmission of reference signals The type of content included in the mode information and the location information, wherein the recommendation/requirement information of the reference signal frequency resource is the frequency of the reference signal requested by the terminal device 720 .

It should be noted that, besides being variable in the dimension of frequency resources, the transmission manner of the reference signal may also be variable in the dimension of antenna resources. The terminal device 720 may adopt a frequency hopping transmission mode or a carrier aggregation transmission mode on frequency resources; the terminal device 720 may adopt a transmission mode of switching antennas or a multi-antenna simultaneous transmission mode on antenna resources. Among them, the transmission method of switching antennas can be understood as starting to use one antenna to send reference signals, then disconnecting this antenna, turning on and using another antenna to send reference signals; the multi-antenna simultaneous transmission method can be understood as all antennas sending reference signals at the same time , each reference signal has a logical port identifier, and it is only necessary to associate the logical port identifier with the physical antenna to distinguish which antenna each reference signal is sent from.

That is to say, the transmission mode of the reference signal may include any of the following: frequency hopping and antenna switching transmission mode, carrier aggregation and antenna switching transmission mode, frequency hopping and multi-antenna simultaneous transmission mode, carrier aggregation and multi-antenna simultaneous transmission mode sending method.

S703, the terminal device 710 sends a response message to the terminal device 720. Correspondingly, the terminal device 720 receives the response message sent by the terminal device 710 .

For this step, reference may be made to S503 , and for the sake of brevity, details are not repeated here.

Through S701 to S703, the terminal device 720 and the terminal device 710 can complete the interaction of configuration information and capability information, that is, complete the interaction of the second information, so that the frequency resource information of the reference signal, the transmission method and location of the reference signal can be determined The type information of the content included in the information.

S704, the terminal device 720 sends reference signals on multiple antennas and multiple frequency resources. Correspondingly, the terminal device 710 receives reference signals on multiple frequency resources.

The terminal device 720 may send reference signals on multiple antennas and multiple frequency resources. The transmission mode of the reference signal may include any of the following: frequency hopping and antenna switching transmission mode, carrier aggregation and antenna switching transmission mode, frequency hopping and multi-antenna simultaneous transmission mode, carrier aggregation and multi-antenna simultaneous transmission mode , which is not limited in this application.

Correspondingly, the terminal device 710 can at least receive reference signals sent by the terminal device 720 on multiple frequency resources. The terminal device 710 may have a single antenna or multiple antennas. When the terminal device 710 has multiple antennas, the terminal device 710 can receive and measure the reference signal on the same antenna.

Exemplarily, the first device may send the reference signal on the first frequency resource through the first port and the second port respectively; and send the reference signal on the second frequency resource through the third port and the fourth port respectively. Correspondingly, the terminal device receives the reference signal on the first frequency resource sent by the first port and the reference signal on the first frequency resource sent by the second port; receives the reference signal on the second frequency resource sent by the third port and A reference signal on the second frequency resource sent by the fourth port.

That is to say, the first device includes a first antenna and a second antenna, and the reference signal on the first frequency resource sent by the first port and the reference signal on the second frequency resource sent by the third port are both sent through the first antenna The reference signal on the first frequency resource sent by the second port and the reference signal on the second frequency resource sent by the fourth port are all reference signals sent through the second antenna.

S705, the terminal device 710 measures the phase of the reference signal sent by the terminal device 720, and determines position information.

It should be noted that the terminal device 710 may measure phases of reference signals sent by the terminal device 720 on multiple frequency resources to determine location information. The terminal device 710 may have a single antenna or multiple antennas. When the terminal device 710 has multiple antennas, the terminal device 710 should at least measure the reference signal on the same antenna.

It should be understood that the location information may include phase information and/or phase difference information and/or phase difference difference information, which is not limited in the present application.

It should be noted that the reference signal carries identification information, and the identification information is used to identify the reference signal, an antenna for sending the reference signal, or a port for sending the reference signal. It should be understood that each reference signal has a logical port identifier, and only by associating the logical port identifier with a physical antenna can it be distinguished from which antenna the reference signal is sent.

That is to say, the phase information is simultaneously associated with at least one of the following: an antenna identifier and a frequency identifier, a port identifier and a frequency identifier, a reference signal identifier and a frequency identifier; the phase difference information is simultaneously associated with at least one of the following : Two antenna IDs and one frequency ID, two port IDs and one frequency ID, two reference signal IDs and one frequency ID, one antenna ID and two frequency IDs, two port IDs and two identification of frequencies, identification of a reference signal, and identification of two frequencies; the difference information of the phase difference is associated with at least one of the following at the same time: identifications of two antennas and identifications of two frequencies, identifications of four ports and identifications of two frequencies identification, identification of two reference signals and identification of two frequencies. For the specific content of this part, reference may be made to S505, which will not be repeated here.

Exemplarily, assuming that the terminal device 720 has two antennas, namely the first antenna and the second antenna, the reference signal sent through the first antenna may carry the first port identifier or the third port identifier, and the reference signal sent through the second antenna The signal may carry the second port identifier or the third port identifier.

The terminal device 710 obtains the phase values shown in Table 2 by measuring reference signals on multiple different frequency resources. Wherein, the first phase corresponds to the phase of the reference signal on the first frequency resource sent by the first port, the second phase corresponds to the phase of the reference signal on the first frequency resource sent by the second port, and the third phase corresponds to the phase of the reference signal sent by the third port The phase of the reference signal on the second frequency resource, the fourth phase corresponds to the phase of the reference signal on the second frequency resource sent by the fourth port.

Table 2

The location information sent by the terminal device 710 is used to indicate at least one of the following: first phase information, second phase information, third phase information, and fourth phase information; first phase difference information and second phase difference information; third phase The difference information and the fourth phase difference information; the difference information of the first phase difference; the difference information of the second phase difference.

Wherein, the first phase information may include at least one of the following: the first phase, the identifier of the first antenna, and the identifier of the first frequency resource; the first phase, the identifier of the first port, and the identifier of the first frequency resource; the first phase, An identifier of a reference signal sent by the first antenna on the first frequency resource and an identifier of the first frequency resource.

The second phase information may include at least one of the following: the second phase, the identifier of the second antenna, and the identifier of the first frequency resource; the second phase, the identifier of the second port, and the identifier of the first frequency resource; the second phase, the second An identifier of a reference signal sent by the antenna on the first frequency resource and an identifier of the first frequency resource.

The third phase information may include at least one of the following: the third phase, the identifier of the first antenna, and the identifier of the second frequency resource; the third phase, the identifier of the third port, and the identifier of the second frequency resource; the third phase, the first An identifier of a reference signal sent by the antenna on the second frequency resource and an identifier of the second frequency resource.

The fourth phase information may include at least one of the following: the fourth phase, the identifier of the second antenna, and the identifier of the second frequency resource; the fourth phase, the identifier of the fourth port, and the identifier of the second frequency resource; the fourth phase, the identifier of the second An identifier of a reference signal sent by the antenna on the second frequency resource and an identifier of the second frequency resource.

The first phase difference information may include at least one of the following: the first phase difference, the identifier of the first antenna, the identifier of the second antenna, and the identifier of the first frequency resource; the first phase difference, the identifier of the first port, and the identifier of the second port and the identifier of the first frequency resource; the first phase difference, the identifier of the reference signal sent by the first port on the first frequency resource, the identifier of the reference signal sent by the second port on the first frequency resource, and the identifier of the first frequency resource logo. Wherein, the first phase difference is a phase difference between the first phase and the second phase.

The second phase difference information may include at least one of the following: the second phase difference, the identifier of the first antenna, the identifier of the second antenna, and the identifier of the second frequency resource; the second phase difference, the identifier of the third port, and the identifier of the fourth port and the identifier of the second frequency resource; the second phase difference, the identifier of the reference signal sent by the third port on the second frequency resource, the identifier of the reference signal sent by the fourth port on the second frequency resource, and the identifier of the second frequency resource logo. Wherein, the second phase difference is a phase difference between the third phase and the fourth phase.

The third phase difference information may include at least one of the following: the third phase difference, the identifier of the first antenna, the identifier of the first frequency resource, and the identifier of the second frequency resource; the third phase difference, the identifier of the first port, the identifier of the third port An identifier, an identifier of the first frequency resource, and an identifier of the second frequency resource; a third phase difference, an identifier of a reference signal sent by the first port on the first frequency resource, and a reference signal sent by the third port on the second frequency resource An identifier of , an identifier of the first frequency resource, and an identifier of the second frequency resource. Wherein, the third phase difference is a phase difference between the first phase and the third phase.

The fourth phase difference information may include at least one of the following: the fourth phase difference, the identifier of the second antenna, the identifier of the first frequency resource, and the identifier of the second frequency resource; the fourth phase difference, the identifier of the second port, the identifier of the fourth port Identification, identification of the first frequency resource and identification of the second frequency resource; fourth phase difference, identification of the reference signal sent by the second port on the first frequency resource, and reference signal sent by the fourth port on the second frequency resource An identifier of , an identifier of the first frequency resource, and an identifier of the second frequency resource. Wherein, the fourth phase difference is a phase difference between the second phase and the fourth phase.

The difference information of the first phase difference may include at least one of the following: the difference of the first phase difference, the identifier of the first antenna, the identifier of the second antenna, the identifier of the first frequency resource, and the identifier of the second frequency resource; A phase difference difference, the first port ID, the second port ID, the third port ID, the fourth port ID, the ID of the first frequency resource, and the ID of the second frequency resource; the difference of the first phase difference, the ID of the second The identification of the reference signal sent by the first port and the second port on the first frequency resource, the identification of the reference signal sent by the third port and the fourth port on the second frequency resource, the identification of the first frequency resource and the second frequency resource logo. Wherein, the difference of the first phase difference is the difference between the first phase difference and the second phase difference.

The difference information of the second phase difference may include at least one of the following: the difference of the first phase difference, the identifier of the first antenna, the identifier of the second antenna, the identifier of the first frequency resource, and the identifier of the second frequency resource; A phase difference difference, the first port ID, the second port ID, the third port ID, the fourth port ID, the ID of the first frequency resource, and the ID of the second frequency resource; the difference of the first phase difference, the ID of the second The identification of the reference signal sent by the first port and the second port on the first frequency resource, the identification of the reference signal sent by the third port and the fourth port on the second frequency resource, the identification of the first frequency resource and the second frequency resource logo. Wherein, the difference of the second phase difference is the difference between the third phase difference and the fourth phase difference.

It should be understood that the phase difference information and the phase difference value information not only need to include antenna identifiers or frequency resource identifiers, but also indicate the order of making phase differences or the order of making phase differences. For details, reference may be made to S505, which will not be repeated here.

It should also be understood that the terminal device 720 may also send reference signals on more antennas and more resource frequencies, which is not limited in this application.

S705, the terminal device 710 sends the location information to the terminal device 720 . Correspondingly, the terminal device 720 receives the location information sent by the terminal device 710 .

S706, the terminal device 720 calculates the departure angle.

In this step, the terminal device 720 may calculate the departure angle according to the position information measured by the terminal device 710 and its own positioning assistance information.

In an example, if the location information includes the first phase information, the second phase information, the third phase information, and the fourth phase information, and the positioning assistance information includes the relative positions of the first antenna and the second antenna, the terminal device 520 may, according to Equation 3, Equation 7, Equation 8, and Equation 10 determine the angle of departure.

In another example, if the location information includes first phase difference information and second phase difference information, or third phase difference information and fourth phase difference information, and the positioning assistance information includes relative positions of the first antenna and the second antenna, Then the terminal device 520 can determine the departure angle according to formula 7, formula 8 and formula 10.

In yet another example, if the location information includes the difference information of the first phase difference or the difference information of the second phase difference, and the positioning assistance information includes the relative positions of the first antenna and the second antenna, then the terminal device 520 may use the formula 10 Determine the departure angle.

In this embodiment of the present application, the first device may send reference signals carried on different frequency resources through different antennas, and the terminal device measures the phases of the reference signals sent on multiple different frequency resources, determines the location information, and sends the The location information is sent to the first device, so that the first device can determine a unique angle of departure according to the location information and its own positioning assistance information, thereby solving the problem of ambiguity in angle measurement.

FIG. 8 is a schematic flowchart of another communication method provided by an embodiment of the present application. The method 800 shown in FIG. 8 may include S801 to S808, which mainly involves that in the sidelink positioning scenario, the terminal device 820 (an example of the first device described in FIG. 4 ) sends references on multiple different frequency resources through multiple antennas. After receiving the reference signals carried on different frequency resources through the same antenna, the terminal device 810 (an example of the terminal device described in FIG. 4 ) can measure the reference signals carried on different frequency resources to obtain phase information , and complete the calculation of the departure angle according to the phase information and the positioning assistance information sent by the terminal device 820 . Each step in the method 800 is described in detail below.

S801, the terminal device 810 sends a request message to the terminal device 820. Correspondingly, the terminal device 820 receives the request message sent by the terminal device 810 .

S802, the terminal device 820 sends configuration information and capability information to the terminal device 810. Correspondingly, the terminal device 810 receives the configuration information and capability information sent by the terminal device 820 .

S803, the terminal device 810 sends a response message to the terminal device 820. Correspondingly, the terminal device 820 receives the response message sent by the terminal device 810 .

S804, the terminal device 820 sends reference signals on multiple different frequency resources of multiple antennas. Correspondingly, the terminal device 810 receives reference signals on multiple different frequency resources.

S805, the terminal device 810 measures the phase of the reference signal sent by the terminal device 820, and determines position information.

S801 to S805 may refer to S701 to S705, and for the sake of brevity, details are not repeated here.

S806, the terminal device 820 sends the positioning assistance information to the terminal device 810. Correspondingly, the terminal device 810 receives the positioning assistance information sent by the terminal device 820 .

The positioning assistance information includes relative position information between antennas of the terminal device 820 . For the relevant content of the positioning assistance information, reference may be made to S506, and for the sake of brevity, details will not be described here.

S807, the terminal device 810 calculates the departure angle.

In this step, the terminal device 810 may calculate the departure angle according to the measured location information and the positioning assistance information sent by the terminal device 820 . For the specific content of calculating the departure angle, reference may be made to S706, which will not be repeated here.

S808, the terminal device 810 sends the calculated departure angle to the terminal device 820. Correspondingly, the terminal device 820 receives the departure angle sent by the terminal device 810 .

In this embodiment of the present application, the first device may transmit reference signals carried on different frequency resources through different antennas, and the terminal device may measure the phases of the reference signals on multiple different frequency resources to determine the location information, and according to the location information Determine a unique departure angle with the positioning assistance information sent by the first device, and send the departure angle to the first device. Since the departure angle is unique, the problem of ambiguity in angle measurement can be solved.

FIG. 9 is a schematic flowchart of another communication method provided by an embodiment of the present application. The method 900 shown in FIG. 9 may include steps S901 to S912, mainly involving in the NR positioning scenario, the gNB/TRP (an example of the first device described in FIG. 4 ) uses multiple antennas on multiple different frequency resources The UE (an example of the terminal equipment described in FIG. 4 ) determines the position information by receiving and measuring the phases of the reference signals on a plurality of different frequency resources, and sends the position information to the LMF, and the LMF will The location information is forwarded to gNB/TRP. After the gNB/TRP completes the calculation of the departure angle according to the position information, it sends the departure angle to the LMF. In this application, there may be multiple gNBs/TRPs, and the location of the UE can be uniquely determined through multiple gNBs/TRPs. Each step in the method 900 is described in detail below.

S901, configuration information is exchanged between the LMF and the gNB/TRP through the NR positioning protocol A (NR positioning protocol A, NRPPa).

Specifically, gNB/TRP determines whether there is a risk of angle measurement ambiguity based on its own antenna spacing and frequency resources used, and decides whether it is necessary to send reference signals on multiple frequency resources and how to send reference signals.

Wherein, the specific content of judging whether there is an angle measurement ambiguity risk can refer to step S502. The transmission mode of the reference signal includes any one of the following: frequency hopping and antenna switching transmission mode, carrier aggregation and antenna switching transmission mode, frequency hopping and multi-antenna simultaneous transmission mode, carrier aggregation and multi-antenna simultaneous transmission mode.

It should be noted that there may be multiple gNBs/TRPs, and the multiple gNBs/TRPs may exchange configuration information with the LMF respectively through NRPPa.

S902, the LMF and the UE perform capability information exchange through an LTE positioning protocol (LTE positioning protocol, LPP).

Specifically, the UE can determine whether to support phase measurement at multiple different frequencies according to its own capabilities, and send the reference signal transmission mode supported by the UE to the LMF, so as to complete capability information exchange.

S903, the LMF sends positioning assistance request information to the gNB/TRP through the NRPPa. Correspondingly, the gNB/TRP receives the positioning assistance request information sent by the LMF.

In this step, the positioning assistance request information mainly includes configuration information of reference signals supported in existing standards, geographic location information, and the like.

It should be noted that there may be multiple gNB/TRPs, and the LMF may send positioning assistance request information to each gNB/TRP through NRPPa.

S904, the gNB/TRP sends positioning assistance response information to the LMF through the NRPPa. Correspondingly, the LMF receives the positioning assistance response information sent by the gNB/TRP.

Specifically, the gNB/TRP sends positioning assistance response information to the LMF through NRPPa according to the received positioning assistance request information, for responding to the positioning assistance request information.

It should be noted that there may be multiple gNB/TRPs, and each gNB/TRP may send positioning assistance response information to the LMF through NRPPa.

S905, the LMF provides the auxiliary information to the UE through the LPP. Correspondingly, the UE receives the auxiliary information sent by the LMF.

The auxiliary information mainly includes the configuration information of the reference signal, and the configuration information may include the bandwidth of the reference signal, the form of the comb, and the like. For specific content, reference may be made to existing protocols, which will not be repeated here.

S906, the LMF sends request location information to the UE through the LPP. Correspondingly, the UE receives the location request information sent by the LMF.

The LMF may send location request information to the UE through the LPP. The location request information is mainly used to request the UE to measure the phase information of the reference signal sent by the gNB/TRP on multiple different frequency resources through multiple antennas.

Optionally, the location request information may indicate that the UE uses the same antenna for measurement.

Optionally, the requested positioning information may also indicate that one or more of phase information, phase difference information, and phase difference difference information is to be reported.

S907, the gNB/TRP sends reference signals on multiple different frequency resources through multiple antennas.

It should be noted that when there is only one gNB/TRP, the gNB/TRP can send multiple reference signals of different frequency resources to the UE on different antennas to determine the angular relationship between the UE and the gNB/TRP; when When there are multiple gNBs/TRPs, the multiple gNBs/TRPs can respectively send reference signals on multiple different frequency resources through their own multiple antennas, so as to determine the position of the UE.

The reference signal can be one or multiple, that is to say, the one gNB/TRP or multiple gNB/TRPs can respectively send a reference signal, and the reference signal is jointly carried by multiple frequency resources, and the one gNB/TRP The TRP or multiple gNBs/TRPs may also send multiple reference signals, and the multiple reference signals may be respectively carried on multiple different frequency resources, which is not limited in this application.

For the specific content of this step, reference may be made to S401, which will not be repeated here.

S908, the UE measures the phase of the reference signal sent by the gNB/TRP to determine location information.

S909, the UE sends location information to the LMF through the LPP. Correspondingly, the LMF receives the location information sent by the UE.

S908 and S909 may refer to S705 and S706 respectively, and for the sake of brevity, details are not repeated here.

S910, the LMF sends location information to the gNB/TRP participating in positioning through NRPPa. The gNB/TRP participating in positioning receives the location information sent by the LMF.

Optionally, the LMF can send position information to the corresponding gNB/TRP through NRPPa, for example, the phase information obtained by measuring the reference signal of gNB/TRP 1 is sent to gNB/TRP 1; the phase information obtained by measuring the reference signal of gNB/TRP 2 Phase information is sent to gNB/TRP 2, and so on.

Optionally, the LMF may send location information to each gNB/TRP through NRPPa, that is, send all phase information to each gNB/TRP. Exemplarily, the phase information obtained by measuring the reference signal of gNB/TRP 1 and the phase information obtained by measuring the reference signal of gNB/TRP 2 can both be sent to gNB/TRP 1, and can also be sent to gNB/TRP 2 at the same time, gNB/TRP 1 can determine the phase information of the reference signal sent by itself from multiple phase information.

S911. The gNB/TRP calculates the departure angle.

In this step, the gNB/TRP can calculate the departure angle according to the location information sent by the UE and the positioning assistance information of the gNB/TRP sent by the LMF. For the specific content of calculating the departure angle, reference may be made to S706, which will not be repeated here.

S912. The gNB/TRP sends the calculated departure angle to the LMF through the NRPPa. Correspondingly, the LMF receives the departure angle sent by the gNB/TRP.

In this embodiment of the application, the base station can transmit reference signals carried on different frequency resources on different antennas, and the terminal device can measure the phase of the reference signals on different frequency resources, determine the location information, and send the location information to the LMF , the LMF forwards the location information to the base station, and the base station determines a unique departure angle according to the location information and its own positioning assistance information. Since the departure angle is unique, the problem of ambiguity in angle measurement can be solved. Further, since there may be multiple base stations, there are also multiple determined departure angles, and the multiple departure angles are all unique, and the base station can uniquely determine the position of the terminal device according to the multiple unique departure angles, so that Solve the problem of ambiguous positioning.

FIG. 10 is a schematic flowchart of another communication method provided by an embodiment of the present application. The method 1000 shown in FIG. 10 may include S1001 to S1012, which mainly involves in the NR positioning scenario, the serving gNB/TRP (an example of the first device described in FIG. The reference signal is sent on different frequency resources, and the UE (an example of the terminal device described in FIG. 4 ) determines the location information by receiving and measuring the phases of the reference signals on multiple different frequency resources, and sends the location information to Serving gNB/TRP. After the serving gNB/TRP completes the calculation of the departure angle according to the location information, it sends the departure angle to the LMF. In this application, there may be multiple neighboring gNB/TRPs, and the position of the UE can be determined through the serving gNB/TRP and multiple neighboring gNB/TRPs, so as to achieve the effect of unambiguous positioning. Each step in the method 1000 is described in detail below.

S1001, LMF and serving gNB/TRP, LMF and neighboring gNB/TRP perform configuration information exchange through NRPPa.

Among them, the serving gNB/TRP can be understood as a base station or node that can communicate with the UE, and the adjacent gNB/TRP can be understood as a base station or node adjacent to the UE, that is, the UE can receive the reference information sent by the adjacent gNB/TRP. Signal.

For the specific content of this step, reference may be made to S901, which will not be repeated here.

S1002, the LMF and the UE perform capability information exchange through the LPP.

For the specific content of this step, reference may be made to S902, which will not be repeated here.

S1003, the LMF sends positioning assistance request information to the neighboring gNB/TRP through the NRPPa. Correspondingly, the adjacent gNB/TRP receives the positioning assistance request information sent by the LMF.

In this step, the LMF sends the positioning assistance request information to the serving gNB/TRP through NRPPa. The positioning assistance request information mainly includes configuration information of reference signals supported in existing standards, geographic location information, etc., and may not include positioning assistance information. LMF sends positioning assistance request information to neighboring gNB/TRP through NRPPa. In addition to the reference signal configuration information and geographical location information supported in the existing standards, the positioning assistance request information can also include relative position information of antennas in neighboring gNB/TRP , that is, positioning assistance information.

S1004, the neighboring gNB/TRP sends positioning assistance response information to the LMF through NRPPa. Correspondingly, the LMF receives the positioning assistance response information sent by the neighboring gNB/TRP.

S1005, the LMF provides auxiliary information to the UE through the LPP. Correspondingly, the UE receives the auxiliary information sent by the LMF.

S1006, the LMF sends request location information to the UE through the LPP. Correspondingly, the UE receives the location request information sent by the LMF.

S1007, the serving gNB/TRP and the neighboring gNB/TRP respectively transmit reference signals on multiple different frequency resources through multiple antennas. Correspondingly, the UE receives reference signals sent by the serving gNB/TRP and the neighboring gNB/TRP on multiple different frequency resources.

S1008, the UE measures the phases of the reference signals sent by the serving gNB/TRP and the neighboring gNB/TRP, and determines location information.

For S1004 to S1008, reference may be made to S904 to S908 respectively, which will not be repeated here.

S1009, the UE sends location information to the serving gNB/TRP through radio resource control (radio resource control, RRC). Correspondingly, the serving gNB/TRP receives the location information sent by the UE through RRC.

In this step, the UE may directly send location information to the serving gNB/TRP through RRC, and the location information may include phase information and/or phase difference information and/or phase difference difference information, which is not limited in this application.

S1010, the LMF sends the antenna configuration information of the neighboring gNB/TRP to the serving gNB/TRP through the NRPPa. Correspondingly, the serving gNB/TRP receives the antenna configuration information of the neighboring gNB/TRP sent by the LMF.

In this step, the LMF sends the antenna configuration information of each adjacent gNB/TRP to the serving gNB/TRP through NRPPa, which may mainly include relative position information between antennas of each adjacent gNB/TRP.

S1010, the serving gNB/TRP calculates the departure angle.

In this step, the serving gNB/TRP can calculate the departure angle according to the location information sent by the UE and the positioning assistance information of each gNB/TRP sent by the LMF. For the specific content of calculating the departure angle, reference may be made to S706, which will not be repeated here.

S1012, the serving gNB/TRP sends the calculated departure angles of all gNB/TRPs to the LMF through NRPPa. Correspondingly, the LMF receives the departure angle sent by the serving gNB/TRP.

In this embodiment of the application, the serving base station and the neighboring base station can both transmit reference signals carried on different frequency resources on different antennas, and the terminal device can measure the phases of the reference signals on different frequency resources, determine the location information, and send the The location information is sent to the serving base station, and the serving base station determines a unique departure angle according to the location information and its own positioning assistance information. Since the departure angle is unique, the problem of ambiguity in angle measurement can be solved. Further, the serving base station may also receive the positioning assistance information of each adjacent base station, and the serving base station may uniquely determine the departure angle according to the location information and the positioning assistance information of each adjacent base station. Since there may be multiple adjacent base stations, there are also multiple determined departure angles, and the multiple departure angles are all unique. Therefore, using the method provided by this application, the position of the terminal device can also be uniquely determined, and then it can also solve the problem of The problem of ambiguous positioning.

Fig. 11 is a schematic flowchart of another communication method provided by an embodiment of the present application. As shown in FIG. 11 , the method 1100 is mainly applied in an NR positioning scenario, and involves interaction between a terminal device, a first device and a core network device. The method 1100 shown in FIG. 11 includes S1101 to S1104, and each step in the method 1100 will be described in detail below.

S1101. The first device sends positioning assistance information to a core network device. Correspondingly, the core network device receives the positioning assistance information sent by the first device.

The positioning assistance information is used to indicate the relative position of the antenna of the first device. For example, the positioning assistance information may indicate the relative positions of the first antenna and the second antenna of the first device.

S1102. The first device sends reference signals on multiple different frequency resources. Correspondingly, the terminal device receives multiple reference signals on different frequency resources.

For the specific content of this step, refer to S401, and to avoid repetition, details are not repeated here.

S1103. The terminal device sends location information. Correspondingly, the core network device receives the location information from the terminal device.

Wherein, the location information may be determined based on phase measurement results of reference signals on multiple different frequency resources.

For example, the position information is determined based on the phase measurement result of the reference signal carried on the first frequency resource and the phase measurement result of the reference signal carried on the second frequency resource.

Optionally, the location information is used to indicate at least one of the following: first phase information, second phase information, third phase information, and fourth phase information; first phase difference information and second phase difference information; third phase The difference information and the fourth phase difference information; the difference information of the phase difference. Wherein, the first phase difference information is obtained according to the first phase and the second phase, the second phase difference information is obtained according to the third phase and the fourth phase, and the third phase difference information is obtained according to the first phase and the third phase Thus, the fourth phase difference information is obtained according to the second phase and the fourth phase, and the phase difference difference information is obtained according to the first phase, the second phase, the third phase and the fourth phase.

S1104. The core network device determines the departure angle according to the positioning assistance information and the location information.

The core network device can determine the relative position of the antenna of the first device according to the positioning assistance information, and can determine the phase information of the reference signal on different frequency resources according to the position information, so that the departure angle can be determined according to formula 10.

In the embodiment of the present application, the terminal device receives reference signals carried on multiple different frequency resources, and sends location information for determining the departure angle to the core network device, and the first device sends positioning assistance information to the core network device, So that the core network device can determine the departure angle according to the position information and the positioning assistance information. Since the location information is determined based on the phase measurement results of reference signals on multiple different frequency resources, and the location information is used to determine the departure angle, it can be understood that the departure angle is also determined based on the reference signals carried on different frequency resources, so that in In the NR positioning scene, a unique departure angle can be determined, which can solve the problem of ambiguity in angle measurement.

Fig. 12 is a schematic flowchart of another communication method provided by an embodiment of the present application. The method 1200 shown in FIG. 12 may include S1201 to S1210, which mainly involves that in the NR positioning scenario, the gNB/TRP (an example of the first device described in FIG. signal, the UE (an example of the terminal equipment described in Figure 11) determines the location information by receiving and measuring the phases of the reference signals carried on multiple different frequency resources sent by gNB/TRP through different antennas, and the location The information is sent to the LMF, and the LMF (an example of the core network device described in FIG. 11 ) completes the calculation of the departure angle. In this application, there may be multiple gNBs/TRPs, and the location of the UE can be determined through multiple gNBs/TRPs, so as to achieve the effect of unambiguous positioning. Each step in the method 1200 is described in detail below.

S1201, the LMF and the gNB/TRP exchange configuration information through NRPPa.

S1202, the LMF and the UE perform capability information exchange through the LPP.

For specific content of S1201 and S1202, reference may be made to S901 and S902 respectively, and details are not repeated here to avoid repetition.

S1203, the LMF sends positioning assistance request information to the gNB/TRP through the NRPPa. Correspondingly, the gNB/TRP receives the positioning assistance request information sent by the LMF.

In this step, the positioning assistance request information may include relative position information of antennas in the gNB/TRP, that is, positioning assistance information, in addition to reference signal configuration information and geographic location information supported in existing standards.

S1204, the gNB/TRP sends positioning assistance response information to the LMF through the NRPPa. Correspondingly, the LMF receives the positioning assistance response information sent by the gNB/TRP.

Specifically, gNB/TRP sends positioning assistance response information to LMF through NRPPa, and provides positioning information to LMF, and the positioning information includes relative position information of antennas in gNB/TRP.

S1205, the LMF provides the auxiliary information to the UE through the LPP. Correspondingly, the UE receives the auxiliary information sent by the LMF.

S1206, the LMF sends request location information to the UE through the LPP. Correspondingly, the UE receives the location request information sent by the LMF.

S1207. The gNB/TRP transmits reference signals on multiple different frequency resources through multiple antennas respectively. Correspondingly, the UE receives the reference signal sent by the gNB/TRP on multiple different frequency resources.

S1208. The UE measures the phase of the reference signal sent by the gNB/TRP to determine location information.

S1209, the UE sends location information to the LMF through the LPP. Correspondingly, the LMF receives the location information sent by the UE.

For specific content of S1205 to S1209, reference may be made to S905 to S909 respectively, and for the sake of brevity, details are not repeated here.

S1210, the LMF calculates the departure angle.

In this step, the LMF can calculate the departure angle according to the location information sent by the UE and the positioning assistance information sent by the gNB/TRP. For the specific content of calculating the departure angle, reference may be made to S706, which will not be repeated here.

In this embodiment of the application, the base station can transmit reference signals carried on different frequency resources on different antennas, and the terminal device can measure the phase of the reference signals on different frequency resources, determine the location information, and send the location information to the LMF , the LMF determines a unique angle of departure according to the location information and the positioning assistance information sent by the base station. Since the departure angle is unique, the problem of ambiguity in angle measurement can be solved. Further, since there may be multiple base stations, there are also multiple determined departure angles, and the multiple departure angles are all unique, and the LMF can uniquely determine the position of the terminal device according to the multiple unique departure angles, so that it can also Solve the problem of ambiguous positioning.

The method embodiment of the embodiment of the present application is described in detail above with reference to FIG. 1 to FIG. 12 , and the device embodiment of the embodiment of the present application is described below with reference to FIG. 13 and FIG. 14 . It should be understood that the descriptions of the method embodiments correspond to the descriptions of the device embodiments, therefore, for parts not described in detail, reference may be made to the foregoing method embodiments.

FIG. 13 is a schematic block diagram of a communication device provided by the present application, including a receiving unit 1310 and a sending unit 1330 . Optionally, the communication device may be used to implement the steps or procedures corresponding to the execution of the terminal device in the above method embodiments, for example, the communication device may be a terminal device, or may also be a chip or a circuit in the terminal device. The receiving unit 1310 is configured to perform receiving-related operations of the terminal device in the above method embodiments. The sending unit is configured to perform sending-related operations of the terminal device in the above method embodiments. Optionally, the communications apparatus further includes a processing unit 1320, and the processing unit 1320 is configured to perform processing-related operations of the terminal device in the above method embodiments. Optionally, the sending unit 1330 and the receiving unit 1310 may also be integrated into a transceiver unit, which has both receiving and sending functions, which is not limited here.

Optionally, the communication device can be used to implement the steps or processes corresponding to the first device in the above method embodiments, for example, the communication device can be the first device, or it can also be a chip or circuit. A receiving unit 1310, where the receiving unit 1310 is configured to perform receiving-related operations of the first device in the above method embodiments. The processing unit 1320 is configured to perform processing related operations of the first device in the above method embodiments, and the sending unit is configured to perform sending related operations of the first device in the above method embodiments. Optionally, the sending unit 1330 and the receiving unit 1310 may also be integrated into a transceiver unit, which has both receiving and sending functions, which is not limited here.

Optionally, the communication device can be used to implement the steps or processes corresponding to the execution of the core network equipment in the above method embodiments. For example, the communication device can be a core network device, or it can also be a chip or circuit. The receiving unit 1310 is configured to perform receiving-related operations of the core network device in the above method embodiments. The processing unit 1320 is configured to perform processing-related operations of the core network device in the above method embodiments, and the sending unit 1330 is configured to perform transmission-related operations of the core network device in the above method embodiments. Optionally, the sending unit 1330 and the receiving unit 1310 may also be integrated into a transceiver unit, which has both receiving and sending functions, which is not limited here.

Fig. 14 is a schematic structural diagram of a communication device provided by the present application, including a processor 1410, the processor 1410 is coupled with a memory 1420, the memory 1420 is used to store computer programs or instructions and/or data, and the processor 1410 is used to execute the memory 1420 Stored computer programs or instructions, or read data stored in the memory 1420, to execute the methods in the above method embodiments.

Optionally, there are one or more processors 1410 .

Optionally, there are one or more memories 1420 .

Optionally, the memory 1420 is integrated with the processor 1410, or is set separately.

Optionally, as shown in Figure 14, the communication device further includes a transceiver 1430, and the transceiver 1430 is used for receiving and/or sending signals. For example, the processor 1410 is configured to control the transceiver 1430 to receive and/or send signals.

Optionally, the communication apparatus may be used to implement the operations performed by the terminal device in the foregoing method embodiments. For example, the processor 1410 is configured to execute computer programs or instructions stored in the memory 1420, so as to implement related operations performed by the terminal device in the above method embodiments. For example, the transceiver 1430 may be used to perform the receiving operation of the terminal device in S401 shown in FIG. 4 , and may also be used for the sending operation of the terminal device in S402. The processor 1410 is configured to execute the processing steps of the terminal device in the embodiment of the present application. For example, a processing operation for performing a determination of position information from a phase of a measured reference signal. It should be understood that the communication device shown in FIG. 14 can execute the terminal device in FIG. 4 and FIG. 11 , the terminal device 510 in FIG. 5 , the terminal device 610 in FIG. 6 , the terminal device 710 in FIG. Operations performed by the terminal device 810 , the UE in FIG. 9 and FIG. 10 , and the UE in FIG. 12 .

Optionally, the communications apparatus may be used to implement the operations performed by the first device in the foregoing method embodiments. For example, the processor 1410 is configured to execute computer programs or instructions stored in the memory 1420, so as to implement related operations performed by the first device in each of the above method embodiments. For example, the transceiver 1430 may be used to perform the sending operation of the first device in S401 shown in FIG. 4 , and may also be used for the receiving operation of the first device in S402 . The processor 1410 is configured to execute the processing steps of the first device in the embodiment of the present application. For example, a processing operation for calculating a departure angle from position information. It should be understood that the communication device shown in FIG. 14 can execute the first device in FIG. 4 and FIG. 11 , the terminal device 520 in FIG. 5 , the terminal device 620 in FIG. 6 , the terminal device 720 in FIG. Operations performed by the terminal device 820 in FIG. 9 , the gNB/TRP in FIG. 9 , the serving gNB/TRP in FIG. 10 , and the gNB/TRP in FIG. 12 .

Optionally, the communication device may be used to implement the operations performed by the core network device in the above method embodiments. For example, the processor 1410 is configured to execute computer programs or instructions stored in the memory 1420, so as to implement related operations performed by the core network device in each method embodiment above. For example, the transceiver 1430 may be used to perform the sending operation of the LMF in S903 shown in FIG. 9 , and may also be used to perform the receiving operation of the LMF in S904 . The processor 1410 is configured to execute the processing steps of the LMF in the embodiment of the present application. For example, it is used to perform the operation of calculating the departure angle in S1104 shown in FIG. 11 .

It should also be understood that FIG. 14 is only an example rather than a limitation, and the above-mentioned communication device including a processor, a memory, and a transceiver may not depend on the structure shown in FIG. 14 .

In addition, the present application provides a chip, and the chip includes a processor. The memory used to store the computer program is set independently of the chip, and the processor is used to execute the computer program stored in the memory, so that the operation and/or processing performed by the terminal device or the first device or the core network device in any method embodiment be executed.

Further, the chip may further include a communication interface. The communication interface may be an input/output interface, or an interface circuit or the like. Further, the chip may further include a memory.

The chip in the embodiment of the present application can be a programmable gate array (field programmable gate array, FPGA), can be an application specific integrated circuit (ASIC), can also be a system chip (system on chip, SoC), can also It can be a CPU, it can also be a network processor (network processor, NP), it can also be a digital signal processing circuit (digital signal processor, DSP), it can also be a microcontroller (micro controller unit, MCU), and it can also be a programmable Controller (programmable logic device, PLD), other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or other integrated chips.

The present application also provides a computer program product, the computer program product including: computer program code, when the computer program code is run on the computer, the computer is made to execute any one of the embodiments shown in Fig. 4 to Fig. 12 method.

The present application also provides a computer-readable medium, the computer-readable medium stores program codes, and when the program codes run on the computer, the computer executes any one of the embodiments shown in Fig. 4 to Fig. 12 . method.

In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in a processor or an instruction in the form of software. The steps of the methods disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware. To avoid repetition, no detailed description is given here.

It should be noted that the processor in the embodiment of the present application may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above-mentioned method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories. Among them, the non-volatile memory can be read-only memory (read-only memory, ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically programmable Erases programmable read-only memory (electrically EPROM, EEPROM) or flash memory. Volatile memory can be random access memory (RAM), which acts as external cache memory. By way of illustration and not limitation, many forms of RAM are available such as static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (sync link DRAM, SLDRAM) and direct memory bus random access memory (direct rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disc and other media that can store program codes. .

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims

A communication method, wherein the method is applied to a terminal device, comprising:

receiving a reference signal carried on a first frequency resource and a second frequency resource, where the first frequency resource is different from the second frequency resource;

sending first information, where the first information is used to indicate a direction angle, and the first information is based on the phase measurement result of the reference signal carried on the first frequency resource and the reference signal carried on the second frequency resource A phase measurement of a reference signal on the resource is determined.
The method according to claim 1, wherein the terminal device comprises a first antenna and a second antenna;

The receiving the reference signal carried on the first frequency resource and the second frequency resource includes:

receiving the reference signals carried on the first frequency resource and on the second frequency resource through the first antenna;

receiving the reference signal carried on the first frequency resource and the second frequency resource through the second antenna;

The phase measurement result of the reference signal on the first frequency resource is determined according to a first phase and a second phase, and the first phase is the reference signal of the first frequency resource received by the first antenna phase, where the second phase is the phase of the reference signal of the first frequency resource received by the second antenna;

The phase measurement result of the reference signal on the second frequency resource is determined according to a third phase and a fourth phase, and the third phase is the reference signal of the second frequency resource received by the first antenna Phase, where the fourth phase is the phase of the reference signal of the second frequency resource received by the second antenna.
The method according to claim 1, characterized in that,

The receiving the reference signal carried on the first frequency resource and the second frequency resource includes:

receiving a reference signal on the first frequency resource sent by the first port and a reference signal on the first frequency resource sent by the second port;

receiving a reference signal on the second frequency resource sent by the third port and a reference signal on the second frequency resource sent by the fourth port;

The phase measurement result of the reference signal on the first frequency resource is determined according to the first phase and the second phase, and the first phase is the received reference signal on the first frequency resource sent by the first port The phase of the second phase is the received phase of the reference signal on the first frequency resource sent by the second port;

The phase measurement result of the reference signal on the second frequency resource is determined according to a third phase and a fourth phase, and the third phase is the received reference signal on the second frequency resource sent by the third port The fourth phase is the received phase of the reference signal sent by the fourth port on the second frequency resource.
The method according to claim 2 or 3, characterized in that,

The first information includes position information, and the position information is used to indicate at least one of the following: first phase information, second phase information, third phase information, and fourth phase information; first phase difference information and second phase information Phase difference information; third phase difference information and fourth phase difference information; phase difference difference information;

Wherein, the first phase difference information is obtained according to the first phase and the second phase,

The second phase difference information is obtained according to the third phase and the fourth phase,

The third phase difference information is obtained according to the first phase and the third phase,

The fourth phase difference information is obtained according to the second phase and the fourth phase,

The difference information of the phase difference is obtained according to the first phase, the second phase, the third phase and the fourth phase.
The method according to claim 2 or 3, characterized in that,

The first information includes a direction angle, and the direction angle is an angle of arrival or an angle of departure,

The direction angle is determined according to position information, and the position information is used to indicate at least one of the following: first phase information, second phase information, third phase information, and fourth phase information; first phase difference information and The second phase difference information; the third phase difference information and the fourth phase difference information; the difference information of the phase difference;

Wherein, the first phase difference information is obtained according to the first phase and the second phase,

The second phase difference information is obtained according to the third phase and the fourth phase,

The third phase difference information is obtained according to the first phase and the third phase,

The fourth phase difference information is obtained according to the second phase and the fourth phase,

The difference information of the phase difference is obtained according to the first phase, the second phase, the third phase and the fourth phase.
The method according to claim 4 or 5, characterized in that,

The first phase information includes the first phase; the second phase information includes the second phase; the third phase information includes the third phase; the fourth phase information includes the fourth Phase;

The first phase difference information includes a first phase difference; the second phase difference information includes a second phase difference; the third phase difference information includes a third phase difference; the fourth phase difference information includes a fourth phase Difference;

The difference information of the phase difference includes the difference of the first phase difference or the difference of the second phase difference;

Wherein, the first phase difference is a phase difference between the first phase and the second phase;

The second phase difference is a phase difference between the third phase and the fourth phase;

The third phase difference is a phase difference between the first phase and the third phase;

The fourth phase difference is a phase difference between the second phase and the fourth phase;

The difference of the first phase difference is the difference between the first phase difference and the second phase difference;

The difference of the second phase difference is the difference between the third phase difference and the fourth phase difference.
The method according to any one of claims 1 to 6, wherein the receiving the reference signal carried on the first frequency resource and the second frequency resource comprises:

receiving a first reference signal, where the first reference signal is carried on the first frequency resource;

receiving a second reference signal, where the second reference signal is carried on the second frequency resource.
The method according to any one of claims 1 to 6, wherein the receiving the reference signal carried on the first frequency resource and the second frequency resource comprises:

receiving a first reference signal, where the first reference signal is jointly carried by the first frequency resource and the second frequency resource.
A communication method, wherein the method is applied to a first device, comprising:

sending a reference signal carried on a first frequency resource and a second frequency resource, where the first frequency resource is different from the second frequency resource;

receiving first information from a terminal device, where the first information is used to indicate a direction angle, where the first information is based on the phase measurement result of the reference signal carried on the first frequency resource and the phase measurement result carried on the first frequency resource The phase measurement result of the reference signal on the second frequency resource is determined.
The method according to claim 9, characterized in that,

The reference signal carried on the first frequency resource is received by a first antenna and a second antenna;

The reference signal carried on the second frequency resource is received by the first antenna and the second antenna;

The phase measurement result of the reference signal on the first frequency resource is determined according to the first phase and the second phase, and the first phase corresponds to the reference signal on the first frequency resource received by the first antenna phase, the second phase corresponds to the phase of the reference signal on the first frequency resource received by the second antenna;

The phase measurement result of the reference signal on the second frequency resource is determined according to a third phase and a fourth phase, and the third phase corresponds to the reference signal on the second frequency resource received by the first antenna phase, the fourth phase corresponds to the phase of the reference signal received by the second antenna on the second frequency resource.
The method according to claim 9, characterized in that,

The sending the reference signal carried on the first frequency resource and the second frequency resource includes:

sending the reference signal on the first frequency resource through the first port and the second port respectively;

sending the reference signal on the second frequency resource through the third port and the fourth port respectively;

The phase measurement result of the reference signal on the first frequency resource is determined according to the first phase and the second phase, the first phase corresponds to the phase of the reference signal on the first frequency resource sent by the first port, The second phase corresponds to the phase of the reference signal sent by the second port on the first frequency resource;

The phase measurement result of the reference signal on the second frequency resource is determined according to a third phase and a fourth phase, where the third phase is the phase of the reference signal on the second frequency resource sent by the third port, The fourth phase is a phase of a reference signal sent by the fourth port on the second frequency resource.
The method according to claim 11, wherein the first device includes a first antenna and a second antenna, the reference signal on the first frequency resource sent by the first port and the reference signal sent by the third port The reference signals sent on the second frequency resource are all sent through the first antenna, the reference signal on the first frequency resource sent by the second port and the reference signal sent by the fourth port The reference signals on the second frequency resources are all sent through the second antenna.
A method according to any one of claims 10 to 12, wherein

The first information includes position information, and the position information is used to indicate at least one of the following: first phase information, second phase information, third phase information, and fourth phase information; first phase difference information and second phase information Phase difference information; third phase difference information and fourth phase difference information; phase difference difference information;

The method also includes:

determining the direction angle according to the location information;

Wherein, the first phase difference information is obtained according to the first phase and the second phase,

The second phase difference information is obtained according to the third phase and the fourth phase,

The third phase difference information is obtained according to the first phase and the third phase,

The fourth phase difference information is obtained according to the second phase and the fourth phase,

The difference information of the phase difference is obtained according to the first phase, the second phase, the third phase and the fourth phase.
A method according to any one of claims 10 to 12, wherein

The first information includes a direction angle, the direction angle is an angle of arrival or an angle of departure, the direction angle is determined according to position information, and the position information is used to indicate at least one of the following: first phase information, second Phase information, third phase information, and fourth phase information; first phase difference information and second phase difference information; third phase difference information and fourth phase difference information; phase difference difference information;

Wherein, the first phase difference information is obtained according to the first phase and the second phase,

The second phase difference information is obtained according to the third phase and the fourth phase,

The third phase difference information is obtained according to the first phase and the third phase,

The fourth phase difference information is obtained according to the second phase and the fourth phase,

The difference information of the phase difference is obtained according to the first phase, the second phase, the third phase and the fourth phase.
The method according to claim 13 or 14, characterized in that,

The first phase information includes the first phase; the second phase information includes the second phase; the third phase information includes the third phase; the fourth phase information includes the fourth Phase;

The first phase difference information includes a first phase difference; the second phase difference information includes a second phase difference; the third phase difference information includes a third phase difference; the fourth phase difference information includes a fourth phase Difference;

The difference information of the phase difference includes the difference of the first phase difference or the difference of the second phase difference;

Wherein, the first phase difference is a phase difference between the first phase and the second phase;

The second phase difference is a phase difference between the third phase and the fourth phase;

The third phase difference is a phase difference between the first phase and the third phase;

The fourth phase difference is a phase difference between the second phase and the fourth phase;

The difference of the first phase difference is the difference between the first phase difference and the second phase difference;

The difference of the second phase difference is the difference between the third phase difference and the fourth phase difference.
The method according to any one of claims 9 to 15, wherein the sending the reference signal carried on the first frequency resource and the second frequency resource comprises:

sending a first reference signal carried on a first frequency resource;

Send the second reference signal carried on the second frequency resource.
The method according to any one of claims 9 to 15, wherein the sending the reference signal carried on the first frequency resource and the second frequency resource comprises:

Send the first reference signal carried on the first frequency resource and the second frequency resource.
A communication method, characterized in that the method is applied to core network equipment, including:

receiving location information from a terminal device, the location information being determined based on a phase measurement result of a reference signal carried on a first frequency resource and a phase measurement result of a reference signal carried on a second frequency resource;

A departure angle is determined based on the position information.
The method of claim 18, wherein,

The position information is used to indicate at least one of the following: first phase information, second phase information, third phase information, and fourth phase information; first phase difference information and second phase difference information; third phase difference information and the fourth phase difference information; the difference information of the phase difference;

Wherein, the first phase difference information is obtained according to the first phase and the second phase,

The second phase difference information is obtained according to the third phase and the fourth phase,

The third phase difference information is obtained according to the first phase and the third phase,

The fourth phase difference information is obtained according to the second phase and the fourth phase,

The difference information of the phase difference is obtained according to the first phase, the second phase, the third phase and the fourth phase.
The method of claim 19, wherein,

The first phase information includes the first phase; the second phase information includes the second phase; the third phase information includes the third phase; the fourth phase information includes the fourth Phase;

The first phase difference information includes a first phase difference; the second phase difference information includes a second phase difference; the third phase difference information includes a third phase difference; the fourth phase difference information includes a fourth phase Difference;

The difference information of the phase difference includes the difference of the first phase difference or the difference of the second phase difference;

Wherein, the first phase difference is a phase difference between the first phase and the second phase;

The second phase difference is a phase difference between the third phase and the fourth phase;

The third phase difference is a phase difference between the first phase and the third phase;

The fourth phase difference is a phase difference between the second phase and the fourth phase;

The difference of the first phase difference is the difference between the first phase difference and the second phase difference;

The difference of the second phase difference is the difference between the third phase difference and the fourth phase difference.
A communication method, characterized in that the method is applied to core network equipment, including:

receiving position information from the terminal device, the position information is determined based on the phase measurement result of the reference signal carried on the first frequency resource and the phase measurement result of the reference signal carried on the second frequency resource, the position information is used for Determine the angle of departure;

Send the location information to the access network device.
The method of claim 21, wherein,

The position information is used to indicate at least one of the following: first phase information, second phase information, third phase information, and fourth phase information; first phase difference information and second phase difference information; third phase difference information and the fourth phase difference information; the difference information of the phase difference;

Wherein, the first phase difference information is obtained according to the first phase and the second phase,

The second phase difference information is obtained according to the third phase and the fourth phase,

The third phase difference information is obtained according to the first phase and the third phase,

The fourth phase difference information is obtained according to the second phase and the fourth phase,

The difference information of the phase difference is obtained according to the first phase, the second phase, the third phase and the fourth phase.
The method of claim 22, wherein,

The first phase information includes the first phase; the second phase information includes the second phase; the third phase information includes the third phase; the fourth phase information includes the fourth Phase;

The first phase difference information includes a first phase difference; the second phase difference information includes a second phase difference; the third phase difference information includes a third phase difference; the fourth phase difference information includes a fourth phase Difference;

The difference information of the phase difference includes the difference of the first phase difference or the difference of the second phase difference;

Wherein, the first phase difference is a phase difference between the first phase and the second phase;

The second phase difference is a phase difference between the third phase and the fourth phase;

The third phase difference is a phase difference between the first phase and the third phase;

The fourth phase difference is a phase difference between the second phase and the fourth phase;

The difference of the first phase difference is the difference between the first phase difference and the second phase difference;

The difference of the second phase difference is the difference between the third phase difference and the fourth phase difference.
A communication device, characterized in that it includes a module for performing the method according to any one of claims 1 to 8; or includes a module for performing the method according to any one of claims 9 to 17 or, comprising a module for performing the method according to any one of claims 18-23.
A communication device, characterized in that it includes: a processor, the processor is coupled with a memory, and the memory is used to store a program or an instruction, and when the program or instruction is executed by the processor, the communication The device executes the method according to any one of claims 1 to 8; or makes the communication device execute the method according to any one of claims 9 to 17; or makes the communication device execute the method according to any one of claims The method according to any one of claims 18 to 23.
A chip, characterized in that it comprises: a processor, configured to read and execute a computer program stored in a memory, to perform the method according to any one of claims 1 to 8; or to perform The method according to any one of claims 9 to 17; or, to perform the method according to any one of claims 18 to 23.
A computer-readable storage medium, characterized in that instructions are stored in the computer-readable storage medium, and when the instructions are run on a computer, the computer is made to perform the operation described in any one of claims 1 to 8. or, causing the computer to execute the method according to any one of claims 9 to 17; or, causing the computer to execute the method according to any one of claims 18 to 23.