WO2023168716A1

WO2023168716A1 - Carrier phase positioning methods and apparatuses therefor

Info

Publication number: WO2023168716A1
Application number: PCT/CN2022/080476
Authority: WO
Inventors: 李明菊
Original assignee: 北京小米移动软件有限公司
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2023-09-14
Also published as: CN114761832A

Abstract

Disclosed in the embodiments of the present disclosure are carrier phase positioning methods and apparatuses therefor, which are applicable to the technical field of communications. A method executed by a terminal device comprises: sending to a network device first indication information for indicating phase error group information of a terminal device side. Then, the network device may determine, according to the first indication information, a phase error generated by the terminal device when modulating or demodulating a reference signal, and determine the position of a terminal on the basis of the phase error and a fractional part and the number of full cycles of a carrier phase. Thus, the accuracy of positioning is improved.

Description

A method and device for carrier phase positioning

Technical field

The present disclosure relates to the field of communication technology, and in particular, to a method and device for carrier phase positioning.

Background technique

With the continuous development of Internet of Things applications and complex scenarios where everything is connected, the accuracy of location information of terminal devices is increasingly required.

In the related art, the position of the terminal device can be determined through a positioning method based on carrier phase. However, this positioning method has large errors.

Contents of the invention

Embodiments of the present disclosure provide a method and device for carrier phase positioning.

In a first aspect, embodiments of the present disclosure provide a carrier phase positioning method, which is executed by a terminal device. The method includes:

Send first indication information to the network device, where the first indication information is used to indicate phase error group information on the terminal device side.

In the present disclosure, the terminal device sends the first indication information for indicating the phase error group information on the terminal device side to the network device. After that, the network device can determine based on the first indication information that the terminal device is modulating or demodulating the reference signal generated by the reference signal. The phase error, and the terminal position is determined based on this phase error, the fractional part of the carrier phase, and the integer number, thereby improving the positioning accuracy.

In the second aspect, embodiments of the present disclosure provide another method of carrier phase positioning. The method is executed by a network device. The method includes:

Receive first indication information sent by the terminal device, where the first indication information is used to indicate phase error group information on the terminal device side.

In the present disclosure, the network device can receive the first indication information sent by the terminal device to indicate the phase error group information on the terminal device side. After that, the network device can determine that the terminal device is modulating or demodulating the reference signal based on the phase error auxiliary information. The generated phase error is determined, and the terminal position is determined based on this phase error, the fractional part and the integer number of the carrier phase, thereby improving the positioning accuracy.

In a third aspect, an embodiment of the present disclosure provides a communication device, which on the terminal device side includes:

The transceiver module is configured to send first indication information to the network device, where the first indication information is used to indicate the first phase error group information on the terminal device side.

In a fourth aspect, an embodiment of the present disclosure provides a communication device, which on the network device side includes:

The transceiver module is configured to receive first indication information sent by the terminal device, where the first indication information is used to indicate phase error group information on the terminal device side.

In a fifth aspect, embodiments of the present application provide a communication device. The communication device includes a processor. When the processor calls a computer program in a memory, it executes the method described in the first aspect.

In a sixth aspect, embodiments of the present application provide a communication device. The communication device includes a processor. When the processor calls a computer program in a memory, it executes the method described in the second aspect.

In a seventh aspect, embodiments of the present application provide a communication device. The communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the first aspect above.

In an eighth aspect, embodiments of the present application provide a communication device. The communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the second aspect above.

In a ninth aspect, embodiments of the present application provide a communication device. The device includes a processor and an interface circuit. The interface circuit is used to receive code instructions and transmit them to the processor. The processor is used to run the code instructions to cause the The device performs the method described in the first aspect.

In a tenth aspect, embodiments of the present application provide a communication device. The device includes a processor and an interface circuit. The interface circuit is used to receive code instructions and transmit them to the processor. The processor is used to run the code instructions to cause the The device performs the method described in the second aspect above.

In an eleventh aspect, embodiments of the present application provide a carrier phase positioning system. The system includes the communication device described in the third aspect and the communication device described in the fourth aspect, or the system includes the communication device described in the fifth aspect. The device and the communication device according to the sixth aspect, or the system includes the communication device according to the seventh aspect and the communication device according to the eighth aspect, or the system includes the communication device according to the ninth aspect and the communication device according to the tenth aspect. The communication device described in this aspect.

In a twelfth aspect, embodiments of the present invention provide a computer-readable storage medium for storing instructions used by the above-mentioned terminal equipment. When the instructions are executed, the terminal equipment is caused to execute the above-mentioned first aspect. method.

In a thirteenth aspect, embodiments of the present invention provide a readable storage medium for storing instructions used by the above-mentioned network device. When the instructions are executed, the network device is caused to perform the method described in the second aspect. .

In a fourteenth aspect, the present application also provides a computer program product including a computer program, which, when run on a computer, causes the computer to execute the method described in the first aspect.

In a fifteenth aspect, the present application also provides a computer program product including a computer program, which when run on a computer causes the computer to execute the method described in the second aspect.

In a sixteenth aspect, the present application provides a chip system, which includes at least one processor and an interface for supporting the terminal device to implement the functions involved in the first aspect, for example, determining or processing the data involved in the above method. and information. In a possible design, the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the terminal device. The chip system may be composed of chips, or may include chips and other discrete devices.

In a seventeenth aspect, this application provides a chip system, which includes at least one processor and an interface for supporting network equipment to implement the functions involved in the second aspect, for example, determining or processing the data involved in the above method. and information. In a possible design, the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the network device. The chip system may be composed of chips, or may include chips and other discrete devices.

In an eighteenth aspect, the present application provides a computer program that, when run on a computer, causes the computer to execute the method described in the first aspect.

In a nineteenth aspect, this application provides a computer program that, when run on a computer, causes the computer to execute the method described in the second aspect.

Description of the drawings

In order to more clearly illustrate the technical solutions in the embodiments of the disclosure or the background technology, the drawings required to be used in the embodiments or the background technology of the disclosure will be described below.

Figure 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present disclosure;

Figure 2 is a schematic flowchart of a carrier phase positioning method provided by an embodiment of the present disclosure;

Figure 3 is a schematic flowchart of another carrier phase positioning method provided by an embodiment of the present disclosure;

Figure 4 is a schematic flowchart of yet another carrier phase positioning method provided by an embodiment of the present disclosure;

Figure 5 is a schematic flowchart of yet another carrier phase positioning method provided by an embodiment of the present disclosure;

Figure 6 is a schematic flowchart of yet another carrier phase positioning method provided by an embodiment of the present disclosure;

Figure 7 is a schematic flowchart of yet another carrier phase positioning method provided by an embodiment of the present disclosure;

Figure 8 is a schematic flowchart of yet another carrier phase positioning method provided by an embodiment of the present disclosure;

Figure 9 is a schematic flowchart of yet another carrier phase positioning method provided by an embodiment of the present disclosure;

Figure 10 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure;

Figure 11 is a schematic structural diagram of another communication device provided by an embodiment of the present disclosure;

Figure 12 is a schematic structural diagram of a chip provided by an embodiment of the present disclosure.

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with aspects of the disclosure as detailed in the appended claims.

For ease of understanding, terminology involved in this disclosure is first introduced.

1. Reference signal (RS)

The reference signal is the "pilot" signal, which is a known signal provided by the transmitter to the receiver for channel estimation or channel detection or positioning measurement. It can be used for coherent detection and demodulation of terminal equipment, beam measurement, positioning measurement or coherent detection and monitoring of network equipment, positioning measurement or channel quality measurement, etc.

2. Carrier phase

The carrier phase refers to the measured value of the phase of the satellite signal received by the receiving end at a certain time; or, the carrier phase refers to the offset value of the phase of the satellite signal received by the receiving end at a certain time relative to the phase of the carrier signal generated by the receiver. .

Please refer to FIG. 1 , which is a schematic architectural diagram of a communication system provided by an embodiment of the present disclosure. The communication system may include but is not limited to one network device and one terminal device. The number and form of devices shown in Figure 1 are only for examples and do not constitute a limitation on the embodiments of the present disclosure. In actual applications, two or more devices may be included. Network equipment, two or more terminal devices. The communication system shown in Figure 1 includes a network device 11 and a terminal device 12 as an example. The network equipment may include core network equipment and/or access network equipment.

It should be noted that the technical solutions of the embodiments of the present disclosure can be applied to various communication systems. For example: long term evolution (LTE) system, fifth generation (5th generation, 5G) mobile communication system, 5G new radio (NR) system, or other future new mobile communication systems.

The core network device in the embodiment of the present disclosure includes a location management function network element. Optionally, the location management function network element includes a location server. The location server can be implemented as any of the following: LMF (Location Management Function, location management network element), E-SMLC (Enhanced Serving Mobile Location Center, enhanced Service mobile location center), SUPL (Secure User Plane Location, secure user plane location), SUPL SLP (SUPL Location Platform, secure user plane location platform).

The access network equipment in the embodiment of the present disclosure includes evolved base stations (evolved NodeB, eNB), transmission points (transmission reception point, TRP), next generation base stations in the NR system (next generation NodeB, gNB), and other future mobile communications Base stations in the system or access nodes in wireless fidelity (WiFi) systems, etc. The embodiments of the present disclosure do not limit the specific technologies and specific equipment forms used by network equipment. The network equipment provided by the embodiments of the present disclosure may be composed of a centralized unit (CU) and a distributed unit (DU). The CU may also be called a control unit (control unit). CU-DU is used. The structure can separate the protocol layers of network equipment, such as base stations, and place some protocol layer functions under centralized control on the CU. The remaining part or all protocol layer functions are distributed in the DU, and the CU centrally controls the DU.

The terminal device 12 in the embodiment of the present disclosure is an entity on the user side for receiving or transmitting signals, such as a mobile phone. Terminal equipment can also be called terminal equipment (terminal), user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal equipment (mobile terminal, MT), etc. The terminal device can be a car with communication functions, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver functions, a virtual reality (VR) terminal device, an augmented reality ( augmented reality (AR) terminal equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self-driving, wireless terminal equipment in remote medical surgery, smart grid ( Wireless terminal equipment in smart grid, wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, wireless terminal equipment in smart home, etc. The embodiments of the present disclosure do not limit the specific technology and specific equipment form used by the terminal equipment.

It can be understood that the communication system described in the embodiments of the present disclosure is to more clearly illustrate the technical solutions of the embodiments of the present disclosure, and does not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. As those of ordinary skill in the art will know, With the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems.

Usually, the content that needs to be measured and reported in the positioning method based on the carrier phase includes the fractional part and the integer number of the carrier phase. Among them, the fractional part of the carrier phase refers to the fractional part less than a full cycle, which is the phase measurement result of the signal sent by the received transmitter, or based on the phase of the reference signal generated by the receiver oscillator and the received signal sent by the transmitter. The result is the phase difference of the signals. However, in the process of sending the reference signal, the transmitter needs to modulate the reference signal above the radio frequency. In the process of receiving the reference signal, the receiver needs to demodulate the radio frequency signal. In the process of processing the radio frequency signal, the transmitter and receiver need to Phase errors may occur, which may have an impact on positioning accuracy. In this disclosure, the equipment sends the phase error information generated when processing radio frequency signals to the opposite end device. Therefore, accurate calculation can be performed based on the phase error generated by processing radio frequency signals, the fractional part and the integer number of the carrier phase. Carrier phase positioning, thereby improving the accuracy of position information.

A carrier phase positioning method and device thereof provided by the present disclosure will be introduced in detail below with reference to the accompanying drawings.

Please refer to Figure 2. Figure 2 is a schematic flowchart of a carrier phase positioning method provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Figure 2, the method may include but is not limited to the following steps:

Step 201: Send first indication information to the network device, where the first indication information is used to indicate phase error group information on the terminal device side.

Among them, the phase error group information can also be called phase error group information. This information includes at least one of the following: phase error group identification ID, and the error value corresponding to the phase error group ID. Network equipment may include core network equipment and/or access network equipment.

In this disclosure, the phase error groupID can be any information that can uniquely determine the phase error group, such as a phase error group number, and this disclosure does not limit this.

The phase error group information may be at least one of the following: sending phase error group information, receiving phase error group information, and sending and receiving phase error group information.

Correspondingly, the above-mentioned first instruction information may include at least one of the following: sending phase error group ID, sending error value corresponding to phase error group ID, receiving phase error group ID, receiving error value corresponding to phase error group ID, sending and receiving Phase error group ID, and the error value corresponding to the sending and receiving phase error group ID.

In this disclosure, the phase error group may also be a timing error group (TEG).

In this disclosure, the error value corresponding to the phase error group ID can be the phase difference between the two signals before and after modulation when the terminal device modulates the reference signal, or the phase difference between the two signals before and after demodulation when demodulating the reference signal.

Correspondingly, the transmit phase error can be the phase error generated when the terminal device modulates the reference signal, the receive phase error can be the phase error generated by the terminal device when it demodulates the reference signal, and the transmit and receive phase error can be the phase error generated by the terminal device when it modulates and demodulates the reference signal. phase error. The reference signal can be any signal used for positioning. For example, it can be a positioning reference signal (PRS) used for positioning, a sounding reference signal (Sounding Reference Signal, SRS) used for positioning, or other reference signals used for positioning.

In this disclosure, for uplink reference signals, when positioning based on carrier phase, the network device can measure the reference signal through the phase of the reference signal generated by itself and/or the phase of the received reference signal sent by the terminal device. However, when the terminal device sends the reference signal, the reference signal needs to be modulated. During the process of modulating the reference signal, phase errors may occur, affecting the accuracy of positioning. Therefore, the terminal device can send the phase error group information corresponding to the phase error generated in the process of modulating the reference signal as phase error auxiliary information to the network device. Therefore, the network device can determine based on the phase error auxiliary information that the terminal device is modulating The phase error generated by the reference signal is used to determine the position of the terminal device based on this phase error, the fractional part and the integer number of the carrier phase, thereby improving the positioning accuracy.

In this disclosure, for downlink reference signals, when positioning based on carrier phase, the terminal device can measure the reference signal through the phase of the reference signal generated by itself and/or the phase of the reference signal sent by the received network device. However, when the terminal receives the reference signal, it needs to demodulate the reference signal. During the process of demodulating the reference signal, a phase error may occur, which affects the accuracy of positioning. Therefore, the terminal device can send the phase error group information corresponding to the phase error generated in the process of demodulating the reference signal as phase error auxiliary information to the network device. Therefore, the network device can determine where the terminal device is based on the phase error auxiliary information. Demodulate the phase error generated by the reference signal, and determine the position of the terminal device based on this phase error, the fractional part and the integer number of the carrier phase, thereby improving the positioning accuracy.

In this disclosure, the terminal device sends the first indication information for indicating the phase error group information on the terminal device side to the network device. After that, the network device can determine based on the first indication information that the terminal device is modulating or demodulating the reference signal generated by the reference signal. The phase error, and the terminal position is determined based on this phase error, the fractional part of the carrier phase, and the integer number, thereby improving the positioning accuracy.

Please refer to Figure 3. Figure 3 is a schematic flowchart of a carrier phase positioning method provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Figure 3, the method may include but is not limited to the following steps:

Step 301: Send first indication information to the network device, where the first indication information includes measurement results and terminal device side phase error group information corresponding to each measurement result.

The phase error group information on the terminal device side may include at least one of the following: receiving phase error group information, and sending and receiving phase error group information. For detailed explanation of the phase error group information, please refer to the detailed description of any embodiment of the present disclosure, and will not be described again here.

The measurement result is a measurement result of the terminal device measuring the received reference signal, which may include at least one of the fractional part and the integer number of the carrier phase.

In addition, the measurement results can further include at least one of the following: reference signal received power, angle of arrival (Angle of Arrival), angle of departure (Angle of Departure), time of arrival (Time of Arrival), time difference of arrival (Time Difference of Arrival), round trip time value (Round Trip Time), receive time error (Rx time error group, REG) identification or error value, transmit time error group (Tx time error group, TEG) identification or error value, and send and receive times Error group (Tx Rx time error group, TREG) identification or error value.

In addition, the network equipment may include core network equipment and/or access network equipment.

In this disclosure, the receiving phase error may be the phase error generated by the terminal device when demodulating the reference signal, and the transmitting and receiving phase error may be the phase error generated when the terminal device modulates and demodulates the reference signal. The reference signal can be any downlink reference signal used for positioning.

In this disclosure, when positioning based on carrier phase, the terminal device can send the measurement results to the network device after measuring the downlink reference signal, so that the network device can determine the location of the terminal device based on the measurement results. However, due to the influence of the phase error generated when the terminal device demodulates the received reference signal sent by the network device, it is not accurate enough to determine the position of the terminal device based only on the measurement results. Therefore, the phase error group information generated by the terminal device when demodulating the reference signal can be sent to the network device as the terminal device side phase error group information corresponding to the measurement result. Therefore, the network device can determine the phase error generated by the demodulation reference signal when the terminal device obtains the measurement result based on the phase error group information, and determine the location of the terminal device based on the phase error and the corresponding measurement result, so that the terminal device can Improve positioning accuracy.

In this disclosure, the terminal device may send first indication information including measurement results and terminal device side phase error group information corresponding to each measurement result to the network device. After that, the network device may determine based on the first indication information that the terminal device is in When the measurement results are obtained, the phase error generated by the reference signal is demodulated, and the position of the terminal device is determined based on the phase error and the corresponding measurement results, thereby improving the positioning accuracy.

Please refer to Figure 4. Figure 4 is a schematic flowchart of a carrier phase positioning method provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Figure 4, the method may include but is not limited to the following steps:

Step 401: Send first indication information to the network device, where the first indication information includes terminal device side phase error group information corresponding to each reference signal.

The network equipment may include core network equipment and/or access network equipment.

Optionally, the reference signal can be a positioning reference signal (PRS), a sounding reference signal (SRS) used for positioning, or other reference signals used for positioning, etc. This disclosure does not make any reference to this. limit.

Optionally, different types of reference signals may have different terminal device side phase error group information. For example, when the reference signal is an uplink reference signal, the terminal device side phase error group information may be transmit phase error group information, and/or , sending and receiving phase error group information. For the specific explanation of the phase error group information, please refer to the detailed description of any embodiment of the present disclosure, and will not be described again here.

In this disclosure, when positioning based on carrier phase, the terminal device sends an uplink reference signal, and the network device receives the uplink reference signal and measures it. After the terminal equipment modulates the uplink reference signal into a radio frequency signal, a phase error will occur. Therefore, the phase error group information corresponding to the phase error generated by the terminal device during the process of modulating the reference signal can be sent to the network device as the phase error group information on the terminal device side corresponding to the reference signal. Thus, the network device can be based on The corresponding terminal device side phase error group information of the reference signal determines the phase error generated by the terminal device when modulating the reference signal. Afterwards, the position of the terminal device can be determined based on the phase error and the measured measurement result of the reference signal. This can improve positioning accuracy.

In this disclosure, the terminal device can send the first indication information including terminal device side phase error group information corresponding to each reference signal to the network device. After that, the network device can determine that the terminal device is in The phase error generated when the reference signal is modulated is determined, and the terminal position is determined based on the phase error and the measurement result of the reference signal, thereby improving positioning accuracy.

Please refer to Figure 5. Figure 5 is a schematic flowchart of a carrier phase positioning method provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Figure 5, the method may include but is not limited to the following steps:

Step 501: Send first indication information to the network device, where the first indication information is used to indicate phase error group information on the terminal device side.

In this disclosure, for the specific implementation process of step 501, please refer to the detailed description of any embodiment in this disclosure, and will not be described again here.

Step 502: In response to the phase error group information being the phase error group ID, send second indication information to the network device, where the second indication information is used to indicate the error value corresponding to each phase error group ID.

In this disclosure, when the phase error group information is a phase error group ID, the terminal device can also send the error value corresponding to each phase error group ID to the network device. As a result, the network device can determine the error value corresponding to the group based on the phase error group ID, and determine the location of the terminal device based on the phase error and measurement results, thereby improving positioning accuracy.

It should be noted that after the terminal device sends the phase error group ID to the network device, it does not need to separately indicate the error value corresponding to each phase error group ID. The network device determines the error corresponding to the phase error group ID according to the protocol. value, this disclosure does not limit this.

In the present disclosure, the terminal device can send first indication information for indicating the phase error group information on the terminal device side to the network device. When the phase error group information is the phase error group ID, the terminal device can send the first indication information for indicating to the network device. Second indication information of the error value corresponding to each phase error group ID. After that, the network device can determine the error value corresponding to the phase error group based on the phase error group ID, and determine the terminal location based on the error value and the test results, thereby Improved positioning accuracy.

Please refer to FIG. 6 , which is a schematic flowchart of a carrier phase positioning method provided by an embodiment of the present disclosure. The method is executed by a network device. The network equipment may include core network equipment and/or access network equipment. As shown in Figure 8, the method may include but is not limited to the following steps:

Step 601: Receive first indication information sent by the terminal device, where the first indication information is used to indicate phase error group information on the terminal device side.

Among them, the phase error group information can also be called phase error group information. This information includes at least one of the following: phase error group identification ID, and the error value corresponding to the phase error group ID.

In this disclosure, the phase error group identification ID can be any information that can uniquely determine the phase error group, such as a phase error group number, and this disclosure does not limit this.

In this disclosure, corresponding to the uplink reference signal, when positioning based on the carrier phase, the network device can measure the reference signal through the phase of the reference signal generated by itself and/or the phase of the received reference signal sent by the terminal device. However, when the terminal device sends the reference signal, the reference signal needs to be modulated. During the process of modulating the reference signal, phase errors may occur, affecting the accuracy of positioning. Therefore, the terminal device can send the phase error group information corresponding to the phase error generated in the process of modulating the reference signal as phase error auxiliary information to the network device. Therefore, the network device can determine based on the phase error auxiliary information that the terminal device is modulating The phase error generated by the reference signal is used to determine the position of the terminal device based on this phase error, the fractional part and the integer number of the carrier phase, thereby improving the positioning accuracy.

In this disclosure, the network device can receive the first indication information sent by the terminal device to indicate the phase error group information on the terminal device side. After that, the network device can determine that the terminal device is modulating or demodulating the reference signal based on the phase error auxiliary information. The generated phase error is determined, and the terminal position is determined based on this phase error, the fractional part and the integer number of the carrier phase, thereby improving the positioning accuracy.

Please refer to FIG. 7 , which is a schematic flowchart of a carrier phase positioning method provided by an embodiment of the present disclosure. The method is executed by a network device. The network equipment may include core network equipment and/or access network equipment. As shown in Figure 7, the method may include but is not limited to the following steps:

Step 701: Receive first indication information sent by the terminal device, where the first indication information includes terminal device side phase error group information corresponding to each measurement result.

The measurement result includes at least one of the fractional part and the integral number of the carrier phase. In addition, the measurement results can further include at least one of the following: reference signal received power, angle of arrival (Angle of Arrival), angle of departure (Angle of Departure), time of arrival (Time of Arrival), time difference of arrival (Time Difference of Arrival), round trip time value (Round Trip Time), receive time error (Rx time error group, REG) identification or error value, transmit time error group (Tx time error group, TEG) identification or error value, and send and receive times Error group (Tx Rx time error group, TREG) identification or error value.

In this disclosure, when positioning based on carrier phase, the terminal device can send the measurement results to the network device after measuring the downlink reference signal, so that the network device can determine the location of the terminal device based on the measurement results. However, due to the influence of the phase error generated when the terminal device demodulates the received reference signal sent by the network device, it is not accurate enough to determine the position of the terminal device based only on the measurement results. Therefore, the phase error group information generated by the terminal device when demodulating the reference signal can be sent to the network device as the terminal device side phase error group information corresponding to the measurement result. Therefore, the network device can determine the phase error generated by the demodulation reference signal when the terminal device obtains the measurement result based on the phase error group information, and determine the position of the terminal device based on the phase error and the corresponding measurement result, thereby Can improve positioning accuracy.

In this disclosure, the network device can receive the first indication information sent by the terminal device including the terminal device side phase error group information corresponding to each measurement result. After that, the network device can determine based on the first indication information that the terminal device is obtaining the measurement result. At this time, the phase error generated by the reference signal is demodulated, and the position of the terminal device is determined based on the phase error and the corresponding measurement results, thereby improving the positioning accuracy.

Please refer to FIG. 8 , which is a schematic flowchart of a carrier phase positioning method provided by an embodiment of the present disclosure. The method is executed by a network device. The network equipment may include core network equipment and/or access network equipment. As shown in Figure 8, the method may include but is not limited to the following steps:

Step 801: Receive first indication information sent by the terminal device. The first indication information includes phase error group information on the terminal device side corresponding to each reference signal.

In this disclosure, when positioning based on carrier phase, the terminal device sends an uplink reference signal, and the network device receives the uplink reference signal and measures it. After the terminal equipment modulates the uplink reference signal into a radio frequency signal, a phase error will occur. Therefore, the phase error group information corresponding to the phase error generated by the terminal device in the process of modulating and demodulating the reference signal can be sent to the network device as the terminal device side phase error group information corresponding to the reference signal. Therefore, the network device is The phase error generated by the terminal device when modulating the reference signal can be determined based on the corresponding phase error group information on the terminal device side of the reference signal. Afterwards, the phase error of the terminal device can be determined based on the phase error and the measured measurement result of the reference signal. location, thereby improving positioning accuracy.

In this disclosure, the network device can receive the first indication information sent by the terminal device including the phase error group information on the terminal device side corresponding to each reference signal. After that, the network device can determine the terminal device based on the phase error group information corresponding to the reference signal. The phase error generated when the reference signal is modulated is determined, and the terminal position is determined based on the phase error and the measurement result of the reference signal, thereby improving positioning accuracy.

Please refer to Figure 9. Figure 9 is a schematic flowchart of a carrier phase positioning method provided by an embodiment of the present disclosure. The method is executed by a network device. The network equipment may include core network equipment and/or access network equipment. As shown in Figure 9, the method may include but is not limited to the following steps:

Step 901: Receive first indication information sent by the terminal device, where the first indication information is used to indicate phase error group information on the terminal device side.

In this disclosure, for the specific implementation process of step 901, please refer to the detailed description of any embodiment in this disclosure, and will not be described again here.

Step 902: Receive second indication information sent by the terminal device, where the second indication information is used to indicate the error value corresponding to each phase error group ID in the phase error group information.

In this disclosure, when the phase error group information is a phase error group ID, the terminal device can also send the error value corresponding to each phase error group ID to the network device. As a result, the network device can determine the error value corresponding to the phase error group ID based on the phase error group ID, and determine the location of the terminal device based on the phase error and the measurement results, thereby improving positioning accuracy.

In the present disclosure, the network device can receive the first indication information sent by the terminal device for indicating the phase error group information on the terminal device side. When the phase error group information is the phase error group ID, the network device can receive the first indication information for indicating the phase error group. Second indication information of the error value corresponding to each phase error group ID in the information. Afterwards, the network device can determine the error value corresponding to the phase error group based on the phase error group ID, and determine the terminal location based on the error value and the test results. , thereby improving positioning accuracy.

Please refer to FIG. 10 , which is a schematic structural diagram of a communication device 1000 provided by an embodiment of the present disclosure. The communication device 1000 shown in FIG. 10 may include a transceiver module 1001 and a processing module 1002. The transceiving module 1001 may include a sending module and/or a receiving module. The sending module is used to implement the sending function, and the receiving module is used to implement the receiving function. The transceiving module 1001 may implement the sending function and/or the receiving function.

It can be understood that the communication device 1000 may be a terminal device, a device in the terminal device, or a device that can be used in conjunction with the terminal device.

The communication device 1000 is on the terminal equipment side, where:

The transceiver module 1001 is configured to send first indication information to the network device, where the first indication information is used to indicate phase error group information on the terminal device side.

Optionally, phase error group information can also be called phase error group information. The phase error group information can include terminal device side phase error group information corresponding to each measurement result, where the measurement result contains the decimal part of the carrier phase. and at least one of the whole week numbers.

Optionally, the phase error group information on the terminal device side includes at least one of the following: receiving phase error group information, and sending and receiving phase error group information.

Optionally, the phase error group information includes terminal device side phase error group information corresponding to each reference signal.

Optionally, the reference signal is an uplink reference signal, and the phase error group information on the terminal device side is transmit phase error group information, and/or transmit and receive phase error group information.

Optionally, the phase error group information includes at least one of the following: sending the phase error group ID, and sending the error value corresponding to the phase error group ID.

Optional, the phase error group information is at least one of the following:

Send phase error group information;

Receive phase error group information; and

Send and receive phase error group information.

It should be noted that the above device embodiments are obtained based on the method embodiments. For specific descriptions, please refer to the method embodiments section and will not be described again here.

It can be understood that the communication device 1000 may be a network device, a device in the network device, or a device that can be used in conjunction with the network device.

Communication device 1000, on the network device side, where:

The transceiver module 1001 receives first indication information sent by the terminal device, where the first indication information is used to indicate phase error group information on the terminal device side.

Optionally, the phase error group information can also be called phase error group information. The phase error group information includes the terminal device side phase error group information corresponding to each measurement result, where the measurement result includes the fractional part of the carrier phase and At least one of the whole week numbers.

Optional, the phase error group information is at least one of the following:

Send phase error group information;

Receive phase error group information; and

Send and receive phase error group ID.

Please refer to FIG. 11 , which is a schematic structural diagram of another communication device 1000 provided by an embodiment of the present disclosure. The communication device 1100 may be a network device, a terminal device, a chip, a chip system, or a processor that supports a network device to implement the above method, or a chip, a chip system, or a processor that supports a terminal device to implement the above method. Processor etc. The device can be used to implement the method described in the above method embodiment. For details, please refer to the description in the above method embodiment.

Communication device 1100 may include one or more processors 1101. The processor 1101 may be a general-purpose processor or a special-purpose processor, or the like. For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data. The central processor can be used to control communication devices (such as base stations, baseband chips, terminal equipment, terminal equipment chips, DU or CU, etc.) and execute computer programs. , processing data for computer programs.

Optionally, the communication device 1100 may also include one or more memories 1102, on which a computer program 1104 may be stored. The processor 1101 executes the computer program 1104, so that the communication device 1100 performs the steps described in the above method embodiments. method. Optionally, the memory 1102 may also store data. The communication device 1100 and the memory 1102 can be provided separately or integrated together.

Optionally, the communication device 1100 may also include a transceiver 1105 and an antenna 1106. The transceiver 1105 may be called a transceiver unit, a transceiver, a transceiver circuit, etc., and is used to implement transceiver functions. The transceiver 1105 may include a receiver and a transmitter. The receiver may be called a receiver or a receiving circuit, etc., used to implement the receiving function; the transmitter may be called a transmitter, a transmitting circuit, etc., used to implement the transmitting function.

Optionally, the communication device 1100 may also include one or more interface circuits 1107. The interface circuit 1107 is used to receive code instructions and transmit them to the processor 1101 . The processor 1101 executes the code instructions to cause the communication device 1100 to perform the method described in the above method embodiment.

The communication device 1100 is a terminal device: the processor 1101 is used to execute steps 502 and so on in Figure 5 .

The communication device 1100 is a network device: the transceiver 1105 is used to perform step 601 in Figure 6; step 701 in Figure 7; step 801 in Figure 8; step 901 in Figure 9, etc. hour

In one implementation, the processor 1101 may include a transceiver for implementing receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuits, interfaces or interface circuits used to implement the receiving and transmitting functions can be separate or integrated together. The above-mentioned transceiver circuit, interface or interface circuit can be used for reading and writing codes/data, or the above-mentioned transceiver circuit, interface or interface circuit can be used for signal transmission or transfer.

In one implementation, the processor 1101 may store a computer program 1103, and the computer program 1103 runs on the processor 1101, causing the communication device 1100 to perform the method described in the above method embodiment. The computer program 1103 may be solidified in the processor 1101, in which case the processor 1101 may be implemented by hardware.

In one implementation, the communication device 1100 may include a circuit, and the circuit may implement the functions of sending or receiving or communicating in the foregoing method embodiments. The processors and transceivers described in this disclosure may be implemented on integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed signal ICs, application specific integrated circuits (ASICs), printed circuit boards ( printed circuit board (PCB), electronic equipment, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), n-type metal oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

The communication device described in the above embodiments may be a network device or an access network device (such as the terminal device in the foregoing method embodiment), but the scope of the communication device described in the present disclosure is not limited thereto, and the structure of the communication device may Not limited by Figure 11. The communication device may be a stand-alone device or may be part of a larger device. For example, the communication device may be:

(1) Independent integrated circuit IC, or chip, or chip system or subsystem;

(2) A collection of one or more ICs. Optionally, the IC collection may also include storage components for storing data and computer programs;

(3)ASIC, such as modem;

(4) Modules that can be embedded in other devices;

(5) Receivers, terminal equipment, intelligent terminal equipment, cellular phones, wireless equipment, handheld devices, mobile units, vehicle-mounted equipment, network equipment, cloud equipment, artificial intelligence equipment, etc.;

(6) Others, etc.

For the case where the communication device may be a chip or a chip system, refer to the schematic structural diagram of the chip shown in FIG. 12 . The chip shown in Figure 12 includes a processor 1201 and an interface 1203. The number of processors 1201 may be one or more, and the number of interfaces 1203 may be multiple.

For the case where the chip is used to implement the functions of the terminal device in the embodiment of the present disclosure:

The interface 1203 is used to execute step 201 in Figure 2; step 301 in Figure 3; step 401 in Figure 4; step 501 in Figure 5, etc.

For the case where the chip is used to implement the functions of the network device in the embodiment of the present disclosure:

Interface 1203 is used to execute step 601 in Figure 6; step 701 in Figure 7; step 801 in Figure 8; step 9019 in Figure 9, etc.

Optionally, the chip also includes a memory 1203, which is used to store necessary computer programs and data.

Those skilled in the art can also understand that the various illustrative logical blocks and steps listed in the embodiments of the present disclosure can be implemented by electronic hardware, computer software, or a combination of both. Whether such functionality is implemented in hardware or software depends on the specific application and overall system design requirements. Those skilled in the art can use various methods to implement the described functions for each specific application, but such implementation should not be understood as exceeding the scope of protection of the embodiments of the present disclosure.

The present disclosure also provides a readable storage medium on which instructions are stored, and when the instructions are executed by a computer, the functions of any of the above method embodiments are implemented.

The present disclosure also provides a computer program product, which, when executed by a computer, implements the functions of any of the above method embodiments.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, the processes or functions described in accordance with the embodiments of the present disclosure are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program may be stored in or transferred from one computer-readable storage medium to another, for example, the computer program may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated. The usable media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVD)), or semiconductor media (e.g., solid state disks, SSD)) etc.

It can be understood that "plurality" in this disclosure refers to two or more, and other quantifiers are similar. "And/or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and/or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the related objects are in an "or" relationship. The singular forms "a", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It will be further understood that although the operations are described in a specific order in the drawings in the embodiments of the present disclosure, this should not be understood as requiring that these operations be performed in the specific order shown or in a serial order, or that it is required that Perform all operations shown to obtain the desired results. In certain circumstances, multitasking and parallel processing may be advantageous.

Those of ordinary skill in the art can understand that the first, second, and other numerical numbers involved in this disclosure are only for convenience of description and are not used to limit the scope of the embodiments of the disclosure, nor to indicate the order.

At least one in the present disclosure can also be described as one or more, and the plurality can be two, three, four or more, and the present disclosure is not limited. In the embodiment of the present disclosure, for a technical feature, the technical feature is distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D” etc. The technical features described in "first", "second", "third", "A", "B", "C" and "D" are in no particular order or order.

The corresponding relationships shown in each table in this disclosure can be configured or predefined. The values of the information in each table are only examples and can be configured as other values, which is not limited by this disclosure. When configuring the correspondence between information and each parameter, it is not necessarily required to configure all the correspondences shown in each table. For example, in the table in this disclosure, the corresponding relationships shown in some rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables may also be other names understandable by the communication device, and the values or expressions of the parameters may also be other values or expressions understandable by the communication device. When implementing the above tables, other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables. wait.

Predefinition in this disclosure may be understood as definition, pre-definition, storage, pre-storage, pre-negotiation, pre-configuration, solidification, or pre-burning.

Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered to be beyond the scope of this disclosure.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

Other embodiments of the disclosure will be readily apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure that follow the general principles of the disclosure and include common knowledge or customary technical means in the technical field that are not disclosed in the disclosure. . It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure. should be covered by the protection scope of this disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

A method of carrier phase positioning, characterized in that it is executed by a terminal device, and the method includes:

Send first indication information to the network device, where the first indication information is used to indicate phase error group information on the terminal device side.
The method of claim 1, wherein the phase error group information is at least one of the following:

Send phase error group information;

Receive phase error group information;

Send and receive phase error group information.
The method according to claim 1 or 2, characterized in that,

The phase error group information includes terminal device side phase error group information corresponding to each measurement result, wherein the measurement result includes at least one of the fractional part and the integer number of the carrier phase.
The method of claim 3, wherein the terminal device side phase error group information includes at least one of the following: receiving phase error group information, and sending and receiving phase error group information.
The method according to claim 1 or 2, characterized in that,

The phase error group information includes terminal device side phase error group information corresponding to each reference signal.
The method of claim 5, characterized in that:

The reference signal is an uplink reference signal, and the phase error group information on the terminal equipment side is transmit phase error group information, and/or transmit and receive phase error group information.
The method according to any one of claims 1 to 6, characterized in that the phase error group information includes at least one of the following: a phase error group identification ID, and an error value corresponding to the phase error group ID.
A method of carrier phase positioning, characterized in that it is executed by network equipment, and the method includes:

Receive first indication information sent by the terminal device, where the first indication information is used to indicate phase error group information on the terminal device side.
The method of claim 8, wherein the phase error group information is at least one of the following:

Send phase error group information;

Receive phase error group information;

Send and receive phase error group information.
The method according to claim 8 or 9, characterized in that,

The phase error group information includes terminal device side phase error group information corresponding to each measurement result, wherein the measurement result includes at least one of the fractional part and the integer number of the carrier phase.
The method of claim 10, wherein the terminal device side phase error group information includes at least one of the following: receiving phase error group information, and sending and receiving phase error group information.
The method according to claim 8 or 9, characterized in that,

The phase error group information includes terminal device side phase error group information corresponding to each reference signal.
The method of claim 12, characterized in that:

The reference signal is an uplink reference signal, and the phase error group information on the terminal equipment side is transmit phase error group information, and/or transmit and receive phase error group information.
The method according to any one of claims 9 to 13, characterized in that the phase error group information includes at least one of the following: a phase error group identification ID, and an error value corresponding to the phase error group ID.
A communication device, characterized by including:

A transceiver module configured to send first indication information to the network device, where the first indication information is used to indicate phase error group information on the terminal device side.
The device of claim 15, wherein the phase error group information is at least one of the following:

Send phase error group information;

Receive phase error group information;

Send and receive phase error group information.
The device according to claim 15 or 16, characterized in that,

The phase error group information includes terminal device side phase error group information corresponding to each measurement result, wherein the measurement result includes at least one of the fractional part and the integer number of the carrier phase.
The apparatus of claim 17, wherein the terminal equipment side phase error group information includes at least one of the following: receiving phase error group information, and sending and receiving phase error group information.
The device according to claim 18, characterized in that:

The phase error group information includes terminal device side phase error group information corresponding to each reference signal.
The device according to claim 19, characterized in that:

The reference signal is an uplink reference signal, and the phase error group information on the terminal equipment side is transmit phase error group information, and/or transmit and receive phase error group information.
The device according to any one of claims 15 to 20, wherein the phase error group information includes any one of the following: a phase error group identification ID, and an error value corresponding to the phase error group ID.
A communication device, characterized by including:

A transceiver module, configured to receive first indication information sent by a terminal device, where the first indication information is used to indicate phase error group information on the terminal device side.
The device of claim 22, wherein the phase error group information is at least one of the following:

Send phase error group information;

Receive phase error group information;

Send and receive phase error group information.
The device according to claim 22 or 23, characterized in that:

The phase error group information includes terminal device side phase error group information corresponding to each measurement result, wherein the measurement result includes at least one of the fractional part and the integer number of the carrier phase.
The apparatus according to claim 24, wherein the terminal equipment side phase error group information includes at least one of the following: receiving phase error group information, and sending and receiving phase error group information.
The device according to claim 22 or 23, characterized in that:

The phase error group information includes terminal device side phase error group information corresponding to each reference signal.
The device according to claim 26, characterized in that:

The reference signal is an uplink reference signal, and the phase error group information on the terminal equipment side is transmit phase error group information, and/or transmit and receive phase error group information.
The device according to any one of claims 22 to 27, wherein the phase error group information includes any one of the following: a phase error group identification ID, and an error value corresponding to the phase error group ID.
A communication device, characterized in that the device includes a processor and a memory, a computer program is stored in the memory, and the processor executes the computer program stored in the memory, so that the device executes the claims The method of any one of claims 1 to 7, or performing the method of any one of claims 8 to 14.
A computer-readable storage medium configured to store instructions that, when executed, enable the method as claimed in any one of claims 1 to 7 to be implemented, or enable the method as claimed in any one of claims 8 to 14. The method described in one item is implemented.