A method and device for carrier phase positioning

Abstract

An embodiment of the present disclosure discloses a method and apparatus for carrier phase positioning, which can be applied to the field of communication technologies. The method executed by a terminal device includes: receiving phase error auxiliary information sent by a core network device for indicating phase error group information of each reference signal. After that, the terminal device can determine the phase error generated at the transmit-receive point when modulating the reference signal according to the phase error information on the transmit-receive point side of the reference signal, and determine the terminal position based on the phase error and the measurement result of the reference signal, thereby improving the positioning accuracy.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular, to a method and apparatus for carrier phase positioning. Background Art

[0002] With the continuous development of Internet of Things applications, for complex scenarios of connecting everything, the accuracy requirement for the location information of terminal devices is getting higher and higher.

[0003] In related technologies, the location of a terminal device can be determined by a positioning method based on carrier phase. However, there are relatively large errors in such a positioning method. Summary of the Invention

[0004] Embodiments of the present disclosure provide a method and apparatus for carrier phase positioning.

[0005] In a first aspect, an embodiment of the present disclosure provides a method for carrier phase positioning, which is executed by a terminal device, and the method includes:

[0006] Receiving phase error assistance information sent by a core network device, where the phase error assistance information is used to indicate phase error group information of each reference signal.

[0007] In the present disclosure, a terminal device can receive phase error assistance information sent by a core network device for indicating phase error group information of each reference signal. Then, the terminal device can determine the phase error generated by the transmit-receive point when modulating the reference signal according to the phase error information on the transmit-receive point side of the reference signal, and determine the terminal location according to the phase error and the measurement result of the reference signal, thereby improving the positioning accuracy.

[0008] In a second aspect, an embodiment of the present disclosure provides another method for carrier phase positioning, which is executed by a core network device, and the method includes:

[0009] Sending phase error assistance information to a terminal device, where the phase error assistance information is used to indicate phase error group information of each reference signal.

[0010] In the present disclosure, a core network device can send phase error assistance information for indicating phase error group information of each reference signal to a terminal device. Then, the terminal device can determine the phase error generated by the transmit-receive point when modulating the reference signal according to the phase error information on the transmit-receive point side of the reference signal, and determine the terminal location according to the phase error and the measurement result of the reference signal, thereby improving the positioning accuracy.

[0011] In a third aspect, an embodiment of the present disclosure provides another method for carrier phase positioning, which is executed by an access network device, and the method includes:

[0012] Send the phase error group information on the transmit-receive point (TRP) side to the core network device.

[0013] In the present disclosure, the access network device sends the phase error group information on the TRP side to the core network device. After that, the core network device can send the phase error group information to the terminal device. Thus, the terminal device can determine the phase error generated by the transmit-receive point in modulating or demodulating the reference signal, and based on this phase error, as well as the fractional part and the integer number of full cycles of the carrier phase, determine the position of the terminal device, thereby improving the positioning accuracy.

[0014] In a fourth aspect, an embodiment of the present disclosure provides a communication device, on the terminal device side, including:

[0015] A transceiver module, configured to receive phase error assistance information sent by the core network device, where the phase error assistance information is used to indicate the phase error group information of each reference signal.

[0016] In a fifth aspect, an embodiment of the present disclosure provides a communication device, on the core network device side, including:

[0017] A transceiver module, configured to send phase error assistance information to the terminal device, where the phase error assistance information is used to indicate the phase error group information of each reference signal.

[0018] In a sixth aspect, an embodiment of the present disclosure provides a communication device, on the access network device side, including:

[0019] A transceiver module, configured to send the phase error group information on the transmit-receive point (TRP) side to the core network device.

[0020] In a seventh aspect, an embodiment of the present disclosure provides a communication device, which includes a processor. When the processor calls a computer program in a memory, it executes the method described in the first aspect above.

[0021] In an eighth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor. When the processor calls a computer program in a memory, it executes the method described in the second aspect above.

[0022] In a ninth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor. When the processor calls a computer program in a memory, it executes the method described in the third aspect above.

[0023] In a tenth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and a memory. 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.

[0024] In an eleventh aspect, an embodiment of the present disclosure provides a communication device, which 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.

[0025] In a twelfth aspect, an embodiment of the present disclosure provides a communication device, which 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 third aspect above.

[0026] In a thirteenth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit. The interface circuit is configured to receive code instructions and transmit them to the processor, and the processor is configured to run the code instructions so that the device executes the method described in the first aspect above.

[0027] In a fourteenth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit. The interface circuit is configured to receive code instructions and transmit them to the processor, and the processor is configured to run the code instructions so that the device executes the method described in the second aspect above.

[0028] In a fifteenth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit. The interface circuit is configured to receive code instructions and transmit them to the processor, and the processor is configured to run the code instructions so that the device executes the method described in the third aspect above.

[0029] In a sixteenth aspect, an embodiment of the present disclosure provides a method for carrier phase positioning. The system includes the communication device described in the fourth aspect, the communication device described in the fifth aspect, and the communication device described in the sixth aspect. Alternatively, the system includes the communication device described in the seventh aspect, the communication device described in the eighth aspect, and the communication device described in the ninth aspect. Alternatively, the system includes the communication device described in the tenth aspect, the communication device described in the eleventh aspect, and the communication device described in the twelfth aspect. Alternatively, the system includes the communication device described in the thirteenth aspect, the communication device described in the fourteenth aspect, and the communication device described in the fifteenth aspect.

[0030] In a seventeenth aspect, an embodiment of the present invention provides a computer-readable storage medium for storing instructions for use by the above terminal device. When the instructions are executed, the terminal device is caused to execute the method described in the first aspect above.

[0031] In an eighteenth aspect, an embodiment of the present invention provides a readable storage medium for storing instructions for use by the above network device. When the instructions are executed, the network device is caused to execute the method described in the second aspect above.

[0032] In a nineteenth aspect, an embodiment of the present invention provides a readable storage medium for storing instructions used by the above network device. When the instructions are executed, the network device is caused to execute the method described in the third aspect above.

[0033] In a twentieth aspect, the present disclosure further provides a computer program product including a computer program. When it runs on a computer, the computer is caused to execute the method described in the first aspect above.

[0034] In an twenty-first aspect, the present disclosure further provides a computer program product including a computer program. When it runs on a computer, the computer is caused to execute the method described in the second aspect above.

[0035] In a twenty-second aspect, the present disclosure further provides a computer program product including a computer program. When it runs on a computer, the computer is caused to execute the method described in the third aspect above.

[0036] In a twenty-third aspect, the present disclosure provides a chip system. The chip system includes at least one processor and an interface, and is used to support a terminal device to implement the functions involved in the first aspect. For example, to determine or process at least one of the data and information involved in the above method. In a possible design, the chip system further includes a memory for storing necessary computer programs and data of the terminal device. The chip system may be composed of chips or may include chips and other discrete devices.

[0037] In a twenty-fourth aspect, the present disclosure provides a chip system. The chip system includes at least one processor and an interface, and is used to support a network device to implement the functions involved in the second aspect. For example, to determine or process at least one of the data and information involved in the above method. In a possible design, the chip system further includes a memory for storing necessary computer programs and data of the network device. The chip system may be composed of chips or may include chips and other discrete devices.

[0038] In a twenty-fifth aspect, the present disclosure provides a computer program. When it runs on a computer, the computer is caused to execute the method described in the first aspect above.

[0039] In a twenty-sixth aspect, the present disclosure provides a computer program. When it runs on a computer, the computer is caused to execute the method described in the second aspect above.

[0040] In a twenty-seventh aspect, the present disclosure provides a computer program. When it runs on a computer, the computer is caused to execute the method described in the third aspect above. Description of the Drawings

[0041] To more clearly illustrate the technical solutions in the embodiments of the present disclosure or the background art, the following will describe the drawings required to be used in the embodiments of the present disclosure or the background art.

[0042] Figure 1 It is a schematic structural diagram of a communication system provided by an embodiment of the present disclosure;

[0043] Figure 2 It is a schematic flowchart of a method for carrier phase positioning provided by an embodiment of the present disclosure;

[0044] Figure 3 It is a schematic flowchart of another method for carrier phase positioning provided by an embodiment of the present disclosure;

[0045] Figure 4 It is a schematic flowchart of yet another method for carrier phase positioning provided by an embodiment of the present disclosure;

[0046] Figure 5 It is a schematic flowchart of yet another method for carrier phase positioning provided by an embodiment of the present disclosure;

[0047] Figure 6 It is a schematic flowchart of yet another method for carrier phase positioning provided by an embodiment of the present disclosure;

[0048] Figure 7 It is a schematic flowchart of yet another method for carrier phase positioning provided by an embodiment of the present disclosure;

[0049] Figure 8 It is a schematic flowchart of yet another method for carrier phase positioning provided by an embodiment of the present disclosure;

[0050] Figure 9 It is a schematic flowchart of yet another method for carrier phase positioning provided by an embodiment of the present disclosure;

[0051] Figure 10 It is a schematic flowchart of yet another method for carrier phase positioning provided by an embodiment of the present disclosure;

[0052] Figure 11 It is a schematic flowchart of yet another method for carrier phase positioning provided by an embodiment of the present disclosure;

[0053] Figure 12 It is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure;

[0054] Figure 13 It is a schematic structural diagram of another communication device provided by an embodiment of the present disclosure;

[0055] Figure 14 It is a schematic structural diagram of a chip provided by an embodiment of the present disclosure. Detailed Implementation Modes

[0056] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation modes described in the following exemplary embodiments do not represent all implementation modes consistent with the present disclosure. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0057] For ease of understanding, the terms related to the present disclosure are first introduced.

[0058] 1. Reference Signal (RS)

[0059] The reference signal is the "pilot" signal, which is a known signal provided by the transmitting end to the receiving end for channel estimation, channel sounding, or positioning measurement. It can be used for coherent detection and demodulation of the terminal device, beam measurement, positioning measurement, or coherent detection and monitoring, positioning measurement, or channel quality measurement of the network device, etc.

[0060] 2. Carrier Phase

[0061] The carrier phase refers to the measured value of the satellite signal phase received by the receiving end at a certain moment; or, the carrier phase refers to the offset value of the satellite signal phase received by the receiving end at a certain moment relative to the carrier signal phase generated by the receiver.

[0062] Please refer to Figure 1 , Figure 1 which is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure. The communication system may include, but is not limited to, a network device and a terminal device. Figure 1 The number and form of the devices shown are only for illustration and do not constitute a limitation on the embodiments of the present disclosure. In practical applications, there may be two or more network devices and two or more terminal devices. Figure 1 The illustrated communication system takes one core network device 11, one terminal device 12, and one access network device 13 as an example.

[0063] 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, 5th generation (5G) mobile communication system, 5G New Radio (NR) system, or other future new mobile communication systems, etc.

[0064] The core network device 11 in the embodiments of the present disclosure includes a location management function network element. Optionally, the location management function network element includes a location server, and the location server can be implemented as any one of the following: LMF (Location Management Function), E-SMLC (Enhanced Serving Mobile Location Centre), SUPL (Secure User Plane Location), SUPL SLP (SUPL Location Platform).

[0065] The access network device 13 in the embodiments of the present disclosure includes an evolved NodeB (eNB), a transmission reception point (TRP), a next generation NodeB (gNB) in the NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system, etc. The embodiments of the present disclosure do not limit the specific technologies and specific device forms adopted by the network device. The network device provided in the embodiments of the present disclosure can be composed of a central unit (CU) and a distributed unit (DU). Among them, the CU can also be referred to as a control unit. Adopting the CU-DU structure can split the protocol layer of the network device, such as a base station. The functions of some protocol layers are centrally controlled by the CU, and the functions of the remaining part or all protocol layers are distributed in the DU, and the DU is centrally controlled by the CU.

[0066] The terminal device 12 in the embodiments of the present disclosure is an entity on the user side for receiving or transmitting signals, such as a mobile phone. The terminal device can also be referred to as a terminal, a user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc. The terminal device can be an automobile 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 (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, a wireless terminal device in a smart home, and so on. The embodiments of the present disclosure do not limit the specific technologies and specific device forms adopted by the terminal device.

[0067] It can be understood that the communication system described in the embodiments of the present disclosure is for more clearly illustrating 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. Those of ordinary skill in the art know that with the evolution of the system architecture and the emergence of new service scenarios, the technical solutions provided by the embodiments of the present disclosure are equally applicable to similar technical problems.

[0068] Generally, in a positioning method based on carrier phase, the content that needs to be measured and reported includes the fractional part and the integer number of full cycles of the carrier phase. Among them, the fractional part of the carrier phase refers to the fractional part less than one full cycle, which is the phase measurement result of the signal transmitted by the transmitter received, or the result obtained by subtracting the phase of the reference signal generated by the receiver oscillator from the phase of the signal transmitted by the transmitter received. However, in the process of transmitting the reference signal, the transmitter needs to modulate the reference signal above radio frequency, and in the process of receiving the reference signal, the receiver needs to demodulate the radio frequency signal. In the process of the transmitter and the receiver processing the radio frequency signal, phase errors may be generated, and such phase errors may affect the positioning accuracy. In the present disclosure, by sending the phase error information generated by itself during the processing of the radio frequency signal to the peer device, thus, accurate carrier phase positioning can be performed according to the phase error generated during the processing of the radio frequency signal, the fractional part and the integer number of full cycles of the carrier phase, thereby improving the accuracy of the position information.

[0069] The following describes in detail a method and an apparatus for carrier phase positioning provided by the present disclosure with reference to the accompanying drawings.

[0070] In any embodiment of the present disclosure, the phase error group is also referred to as the phase error group.

[0071] Please refer to Figure 2 , Figure 2 which is a schematic flowchart of a method for carrier phase positioning provided by an embodiment of the present disclosure, and this method is executed by a terminal device. As Figure 2 shown, the method may include but is not limited to the following steps:

[0072] Step 201, receive the phase error assistance information sent by the core network device, where the phase error assistance information is used to indicate the phase error group information of each reference signal.

[0073] Among them, the phase error group information may include the phase error group information on the transmit-receive point (TRP) side, and the phase error group information includes at least one of the following: the phase error group identification ID, and the error value corresponding to the phase error group ID.

[0074] Optionally, the phase error group may also be a timing error group (TEG).

[0075] In the present disclosure, the phase error group identification ID may be any information that can uniquely determine the phase error group, such as the phase error group number, and the present disclosure does not limit this.

[0076] Among them, the phase error group information may be at least one of the following: transmitted phase error group information, received phase error group information, and transmitted and received phase error group information.

[0077] Correspondingly, the first indication information may include at least one of the following: transmitted phase error group ID, error value corresponding to the transmitted phase error group ID, received phase error group ID, error value corresponding to the received phase error group ID, transmitted and received phase error group ID, and error value corresponding to the transmitted and received phase error group ID.

[0078] In the present disclosure, the error value corresponding to the phase error group ID may be the phase difference between two signals before and after modulation when modulating the reference signal at the transmit-receive point, or the phase difference between two signals before and after demodulation when demodulating the reference signal.

[0079] Correspondingly, the transmitted phase error may be the phase error generated when modulating the reference signal at the transmit-receive point, the received phase error may be the phase error generated when demodulating the reference signal at the transmit-receive point, and the transmitted and received phase error may be the phase error generated when modulating and demodulating the reference signal at the transmit-receive point. Among them, the reference signal may be any signal for positioning. For example, it may be a positioning reference signal (PRS) for positioning, or a sounding reference signal (SRS) for positioning, or other reference signals for positioning.

[0080] In the present disclosure, when positioning based on carrier phase, it includes the access network device transmitting a downlink reference signal, and the terminal device receiving and measuring the downlink reference signal. Among them, after modulating the downlink reference signal into a radio frequency signal, the access network device will generate a phase error. Therefore, the phase error group information corresponding to the phase error generated by the access network device during the modulation of the reference signal can be used as the phase error group information on the access network device side corresponding to the reference signal and sent to the core network device. After that, the core network device can send the phase error group information to the terminal device. Thus, the terminal device can determine the phase error generated by the transmit-receive point during the modulation of the reference signal, and based on this phase error and the measurement result of the reference signal, determine the position of the terminal device, thereby improving the positioning accuracy.

[0081] Optionally, for different types of reference signals, the corresponding phase error group information may be different. For example, when the reference signal is a downlink reference signal, the phase error group information may be the transmission phase error group information on the TRP side, and / or the transmission and reception phase error group information.

[0082] In the present disclosure, the terminal device may receive phase error auxiliary information sent by the core network device for indicating the phase error group information of each reference signal. Then, the terminal device may determine the phase error generated when the transmission and reception point modulates the reference signal according to the phase error information on the transmission and reception point side of the reference signal, and determine the terminal position according to the phase error and the measurement result of the reference signal, thereby improving the positioning accuracy.

[0083] Please refer to Figure 3 , Figure 3 which is a schematic flowchart of a carrier phase positioning method provided by an embodiment of the present disclosure, and this method is executed by the terminal device. As Figure 3 shown, the method may include but is not limited to the following steps:

[0084] Step 301, receive the phase error auxiliary information sent by the core network device, where the phase error auxiliary information is used to indicate the phase error group information of each reference signal.

[0085] In the present disclosure, for the specific implementation process of step 301, reference may be made to the detailed description of any embodiment in the present disclosure, which will not be elaborated herein.

[0086] Step 302, receive the indication information sent by the core network device, where the indication information is used to indicate the error value corresponding to each phase error group ID on the TRP side.

[0087] In the present disclosure, when the phase error group information is the phase error group ID, the core network device may also send the error value corresponding to each phase error group ID on the TRP side to the terminal device. Thus, the terminal device may determine the error value corresponding to the group according to the phase error group ID, and determine the position of the terminal device according to this phase error and the measurement result, thereby improving the positioning accuracy.

[0088] It should be noted that after the core network device sends the phase error group ID to the terminal, it may not separately indicate the error value corresponding to each such phase error group ID. The terminal device determines the error value corresponding to the phase error group ID according to the protocol agreement, and the present disclosure does not limit this.

[0089] In the present disclosure, the terminal device may receive the phase error group information sent by the core network device for indicating the phase error of each reference signal. When the phase error group information is the phase error group identification ID, the terminal device may receive the indication information for indicating the error value corresponding to each phase error group ID on the TRP side. Then, the terminal device may determine the error value corresponding to the group according to the phase error group ID, and determine the terminal position according to the error value and the measurement result, thereby improving the positioning accuracy.

[0090] Please refer to Figure 4 , Figure 4 which is a schematic flowchart of a carrier phase positioning method provided by an embodiment of the present disclosure, and this method is executed by the core network device. As Figure 4 shown, the method may include but is not limited to the following steps:

[0091] Step 401: Send phase error assistance information to the terminal device, where the phase error assistance information is used to indicate the phase error group information of each reference signal.

[0092] Among them, the phase error group information may include the phase error group information on the TRP side of the transmit-receive point. The phase error group information includes at least one of the following: phase error identification ID, and the error value corresponding to the phase error ID.

[0093] Optionally, the phase error group may also be a timing error group (TEG).

[0094] In the present disclosure, the phase error identification ID may be any information that can uniquely determine the phase error group, such as the phase error group number, and the present disclosure does not limit this.

[0095] Among them, the phase error group information may be at least one of the following: transmit phase error group information, receive phase error group information, and transmit-receive phase error group information.

[0096] In the present disclosure, the error value corresponding to the phase error ID may be the phase difference between the two signals before and after modulation when modulating the reference signal at the transmit-receive point, or the phase difference between the two signals before and after demodulation when demodulating the reference signal.

[0097] Correspondingly, the transmission phase error may be the phase error generated when the transmission and reception point modulates the reference signal, the reception phase error may be the phase error generated when the transmission and reception point demodulates the reference signal, and the transmission and reception phase error may be the phase error generated when the transmission and reception point modulates and demodulates the reference signal. Among them, the reference signal may be any signal used for positioning. For example, it may be a positioning reference signal (PRS) used for positioning, or a sounding reference signal (SRS) used for positioning, or other reference signals used for positioning.

[0098] In this disclosure, when positioning based on carrier phase, it includes the access network device sending a downlink reference signal, and the terminal device receiving the downlink reference signal and measuring it. Among them, after the access network device modulates the downlink reference signal into a radio frequency signal, a phase error will be generated. Therefore, the phase error group information corresponding to the phase error generated by the access network device during the modulation of the reference signal can be sent to the core network device as the phase error group information on the access network device side corresponding to this reference signal. Then, the core network device can send this phase error group information to the terminal device. Thus, the terminal device can determine the phase error generated by the transmission and reception point when modulating the reference signal, and based on this phase error and the measurement result of this reference signal, determine the position of the terminal device, thereby improving the positioning accuracy.

[0099] Optionally, the phase error group information corresponding to different types of reference signals may be different. For example, when the reference signal is a downlink reference signal, the phase error group information may be the transmission phase error group information on the TRP side and / or the transmission and reception phase error group information.

[0100] In this disclosure, the core network device can send phase error assistance information for indicating the phase error group information of each reference signal to the terminal device. Then, the terminal device can determine the phase error generated by the transmission and reception point when modulating this reference signal based on the phase error information on the transmission and reception point side of the reference signal, and based on this phase error and the measurement result of this reference signal, determine the terminal position, thereby improving the positioning accuracy.

[0101] Please refer to Figure 5 , Figure 5 which is a schematic flowchart of a carrier phase positioning method provided by an embodiment of this disclosure, and this method is executed by the core network device. As Figure 5 shown, this method may include but is not limited to the following steps:

[0102] Step 501: Send phase error assistance information to the terminal device, where the phase error assistance information is used to indicate the phase error group information of each reference signal.

[0103] In the present disclosure, for the specific implementation process of step 501, reference can be made to the detailed description of any embodiment in the present disclosure, which will not be elaborated here.

[0104] Step 502: In response to the phase error group information being the phase error group ID, send indication information to the terminal device, where the indication information is used for the error value corresponding to the phase error group ID.

[0105] In the present disclosure, when the phase error group information is the phase error group ID, the core network device can also send the error value corresponding to each phase error group ID to the terminal device. Thus, the terminal device can determine the error value corresponding to the phase error group according to the phase error group ID, and determine the position of the terminal device based on this phase error and the measurement result, thereby improving the positioning accuracy.

[0106] It should be noted that after the core network device sends the phase error group ID to the terminal device, it may not separately indicate the error value corresponding to each such phase error group ID. The terminal device determines the error value corresponding to the phase error group ID according to the protocol agreement. The present disclosure does not limit this.

[0107] In the present disclosure, the core network device can send phase error assistance information for indicating the phase error group information of each reference signal to the terminal device. In the case where the phase error group information is the phase error group ID, it can send indication information for the error value corresponding to the phase error group ID to the terminal device. After that, the terminal device can determine the error value corresponding to the phase error group according to the phase error group ID, and determine the terminal position based on the error value and the measurement result, thereby improving the positioning accuracy.

[0108] Please refer to Figure 6 , Figure 6 which is a schematic flowchart of a carrier phase positioning method provided by an embodiment of the present disclosure, and this method is executed by the core network device. As Figure 6 shown, this method may include but is not limited to the following steps:

[0109] Step 601: Receive the phase error group information on the transmission and reception point (TRP) side sent by the access network device.

[0110] Among them, the phase error group information on the TRP side includes the phase error group information on the TRP side for indicating each reference signal and / or the phase error group information on the TRP side for indicating each measurement result.

[0111] Among them, the phase error group can also be referred to as the phase error group. The phase error group information includes at least one of the following: the phase error group identification ID, and the error value corresponding to the phase error group ID.

[0112] In the present disclosure, the phase error group identification ID can be any information that can uniquely determine the phase error group, such as the phase error group number. The present disclosure places no restrictions on this.

[0113] Among them, the phase error group information can be at least one of the following: the transmitted phase error group information, the received phase error group information, and the transmitted and received phase error group information.

[0114] In the present 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 modulating the reference signal at the transmit-receive point, or the phase difference between the two signals before and after demodulation when demodulating the reference signal.

[0115] Correspondingly, the transmitted phase error can be the phase error generated when the access network device modulates the reference signal, the received phase error can be the phase error generated when the access network device demodulates the reference signal, and the transmitted and received phase error can be the phase error generated when the access network device modulates and demodulates the reference signal. The reference signal can be any signal used for positioning. For example, it can be a positioning reference signal (PRS) used for positioning, or a sounding reference signal (SRS) used for positioning, or other reference signals used for positioning.

[0116] In this disclosure, when performing positioning based on carrier phase, for downlink reference signals, the terminal device can measure positioning information through the phase of the reference signal generated by itself and / or the phase of the reference signal received from the access network device. However, during the process of transmitting the reference signal, the access network device needs to modulate the reference signal, and phase errors may be generated during the modulation process, which affects the positioning accuracy. Therefore, the access network device can send the phase error group information corresponding to the phase error generated during the modulation of the reference signal as the phase error group information on the TRP side of the reference signal to the core network device. Subsequently, the core network device can send this phase error group information to the terminal device. Thus, the terminal device can determine the phase error generated by the transmit-receive point during the modulation of the reference signal, and based on this phase error, as well as the fractional part and the integer number of full cycles of the carrier phase, determine the position of the terminal device, thereby improving the positioning accuracy.

[0117] In this disclosure, when performing positioning based on carrier phase, after measuring the uplink reference signal, the access network device can send the measurement result to the core network device. Thus, the core network device can determine the position of the terminal device based on the measurement result. However, affected by the phase error generated when the access network device demodulates the reference signal sent by the terminal device, it is not accurate enough to determine the position of the terminal device only based on the measurement result. Therefore, the access network device can send the group information corresponding to the phase error generated during the demodulation of the reference signal as the phase error group information on the access network device side corresponding to the measurement result to the core network device. Subsequently, the core network device can determine the phase error generated by the access network device during the demodulation of the reference signal based on this phase error group information, and based on this phase error and the corresponding measurement result, determine the position of the terminal device, thereby improving the positioning accuracy.

[0118] Among them, the measurement result is the measurement result of the access network device measuring the received reference signal, which may include at least one of the fractional part of the carrier phase and the integer number of full cycles. In addition, the measurement result may further include at least one of the following: reference signal received power, angle of arrival, angle of departure, time of arrival, time difference of arrival, round trip time value, received time error (Rx time error group, REG) identification or error value, transmitted time error (Tx time error group, TEG) identification or error value, and transmitted and received time error (Tx Rx time error group, TREG) identification or error value.

[0119] In the present disclosure, the core network device may receive the phase error group information sent by the access network device for indicating the TRP side, and then the core network device may send the phase error group information to the terminal device. Thus, the terminal device can determine the phase error generated by the transmit-receive point in modulating the reference signal, and based on this phase error, as well as the fractional part and the integer number of full cycles of the carrier phase, determine the position of the terminal device, thereby improving the positioning accuracy.

[0120] Please refer to Figure 7 , Figure 7 is a schematic flow diagram of a carrier phase positioning method provided by an embodiment of the present disclosure, and this method is executed by the core network device. As Figure 7 shown, the method may include but is not limited to the following steps:

[0121] Step 701, receive the phase error group information of the transmit-receive point (TRP) side of the phase sent by the access network device.

[0122] In the present disclosure, for the specific implementation process of step 701, reference may be made to the detailed description of any embodiment of the present disclosure, and details are not described herein again.

[0123] Step 702, receive the error value corresponding to each phase error group ID in the phase error group information sent by the access network device.

[0124] In the present disclosure, when the phase error group information is the phase error group ID, the TRP may also send the error value corresponding to each phase error group ID to the core network device. Thus, the core network device may determine the error value corresponding to the group according to the phase error group ID, and determine the location of the terminal device based on this phase error and the measurement result, thereby improving the positioning accuracy.

[0125] It should be noted that after the access network device sends the phase error group ID to the core network, it may not separately indicate the error value corresponding to each such phase error group ID. The core network device determines the error value corresponding to the phase error group ID according to the protocol agreement. The present disclosure does not limit this.

[0126] In the present disclosure, the core network device may receive the phase error group information used to indicate the TRP side sent by the access network device. When the phase error group information is the phase error group ID, it may receive the error value corresponding to each phase error group ID in the phase error group information sent by the access network device. After that, the core network device may send the error value corresponding to each phase error group ID to the terminal device. Thus, the terminal device may determine the error value corresponding to the phase error group according to the phase error group ID, and determine the terminal location based on this error value and the measurement result, thereby improving the positioning accuracy.

[0127] Please refer to Figure 8 , Figure 8 which is a schematic flowchart of a carrier phase positioning method provided by an embodiment of the present disclosure, and this method is executed by the access network device. As Figure 8 shown, this method may include but is not limited to the following steps:

[0128] Step 801: Send the phase error group information on the transmit-receive point (TRP) side to the core network device.

[0129] Among them, the phase error group information includes at least one of the following: the phase error group identification ID, and the error value corresponding to the phase error group ID.

[0130] In the present disclosure, the phase error group identification ID may be any information such as the phase error group number that can uniquely determine the phase error group, and the present disclosure does not limit this.

[0131] Among them, the phase error group information may be at least one of the following: send phase error group information, receive phase error group information, and send-receive phase error group information.

[0132] In the present disclosure, the error value corresponding to the phase error group ID may be the phase difference between two signals before and after modulation when the transmit-receive point modulates the reference signal, or the phase difference between two signals before and after demodulation when the reference signal is demodulated.

[0133] Correspondingly, the transmit phase error may be the phase error generated when the transmit-receive point modulates the reference signal, the receive phase error may be the phase error generated when the transmit-receive point demodulates the reference signal, and the transmit-receive phase error may be the phase error generated when the transmit-receive point modulates and demodulates the reference signal. The reference signal may be any signal used for positioning. The reference signal may be any signal used for positioning. For example, it may be a positioning reference signal (PRS) for positioning, or a sounding reference signal (SRS) for positioning, or other reference signals for positioning.

[0134] In the present disclosure, when positioning based on carrier phase, for the downlink reference signal, the terminal device can measure positioning information through the phase of the reference signal generated by itself and / or the phase of the reference signal received from the access network device sent. However, during the process of sending the reference signal, the access network device needs to modulate the reference signal, and phase errors may be generated during the modulation process of the reference signal, affecting the accuracy of positioning. Therefore, the access network device can use the phase error group information corresponding to the phase error generated during the modulation process of the reference signal as the phase error group information on the TRP side of the reference signal and send it to the core network device. Subsequently, the core network device can send this phase error group information to the terminal device. Thus, the terminal device can determine the phase error generated by the transmit-receive point when modulating the reference signal, and based on this phase error, as well as the fractional part and integer number of full cycles of the carrier phase, determine the position of the terminal device, thereby improving the positioning accuracy.

[0135] In this disclosure, when performing positioning based on carrier phase, after the access network device measures the uplink reference signal, it can send the measurement result to the core network device. Thus, the core network device can determine the position of the terminal device according to the measurement result. However, affected by the phase error generated when the access network device demodulates the reference signal sent by the terminal device received, it is not accurate enough to determine the position of the terminal device only based on the measurement result. Therefore, the access network device can send the group information corresponding to the phase error generated when demodulating the reference signal as the phase error group information on the access network device side corresponding to the measurement result to the core network device. After that, the core network device can determine the phase error generated by the access network device when demodulating the reference signal according to this phase error group information, and determine the position of the terminal device according to this phase error and the corresponding measurement result, thereby improving the positioning accuracy.

[0136] Among them, the measurement result is the measurement result of the access network device measuring the received reference signal, which may include at least one of the fractional part and the integer number of cycles of the carrier phase. In addition, the measurement result may further include at least one of the following: reference signal received power, Angle of Arrival, Angle of Departure, Time of Arrival, Time Difference of Arrival, Round Trip Time, Rx time error group (REG) identifier or error value, Tx time error group (TEG) identifier or error value, and Tx Rx time error group (TREG) identifier or error value.

[0137] In this disclosure, the access network device sends the phase error group information on the TRP side to the core network device. After that, the core network device can send this phase error group information to the terminal device. Thus, the terminal device can determine the phase error generated by the transmit-receive point when modulating the reference signal, and determine the position of the terminal device according to this phase error, the fractional part and the integer number of cycles of the carrier phase, thereby improving the positioning accuracy.

[0138] Please refer to Figure 9 , Figure 9 which is a schematic flowchart of a carrier phase positioning method provided by an embodiment of this disclosure, and this method is executed by the access network device. As Figure 9 shown, this method may include but is not limited to the following steps:

[0139] Step 901: Send to the core network device the measurement results and the TRP-side phase error group information corresponding to each measurement result.

[0140] Among them, the TRP-side phase error group information may include at least one of the following: received phase error group information, transmitted and received phase error group information. For the specific explanation of the phase error group information, reference may be made to the detailed description of any embodiment of the present disclosure, which will not be elaborated here.

[0141] Among them, the measurement results include at least one of the fractional part of the carrier phase and the number of full weeks. In addition, the measurement results may further include at least one of the following: reference signal received power, angle of arrival, angle of departure, time of arrival, time difference of arrival, round trip time value, received time error (Rx time error group, REG) identifier or error value, transmitted time error (Tx time error group, TEG) identifier or error value, and transmitted and received time error (Tx Rx time error group, TREG) identifier or error value.

[0142] In the present disclosure, the received phase error may be the phase error generated by the TRP demodulating the reference signal, and the transmitted and received phase error may be the phase error generated by the TRP modulating and demodulating the reference signal. Among them, the reference signal may be any downlink reference signal for positioning.

[0143] In the present disclosure, when positioning based on the carrier phase, after the access network device measures the uplink reference signal, it may send the measurement results to the core network device. Thus, the core network device may determine the position of the terminal device according to the measurement results. However, affected by the phase error generated by the TRP when demodulating the reference signal sent by the terminal device received, it is not accurate enough to determine the position of the terminal device only according to the measurement results. Therefore, the group information corresponding to the phase error generated by the TRP when demodulating the reference signal may be used as the TRP-side phase error group information corresponding to the measurement results and sent to the core network device. Thus, the core network device may determine the phase error generated by the TRP when demodulating the reference signal when the access network device obtains the measurement results according to this group information, and determine the position of the terminal device according to this phase error and the corresponding measurement results, thereby improving the positioning accuracy.

[0144] In the present disclosure, the access network device may send to the core network device measurement results and the TRP-side phase error group information corresponding to each measurement result. Subsequently, the core network device may, based on the phase error group information, determine the phase error generated when the TRP demodulates the demodulation reference signal when obtaining the measurement results, and based on this phase error and the corresponding measurement results, determine the location of the terminal device, thereby improving the accuracy of positioning.

[0145] Please refer to Figure 10 , Figure 10 which is a schematic flowchart of a carrier phase positioning method provided by an embodiment of the present disclosure. This method is executed by the access network device. As Figure 10 shown, this method may include but is not limited to the following steps:

[0146] Step 1001: Send to the core network device the TRP-side phase error group information corresponding to each reference signal. Optionally, the reference signal may be a positioning reference signal (PRS), or a sounding reference signal (SRS) for positioning, or other reference signals for positioning, etc. The present disclosure does not limit this.

[0147] Optionally, for different types of reference signals, the corresponding TRP-side phase error group information may be different. For example, when the reference signal is a downlink reference signal, the TRP-side phase error group information may be the TRP-side transmission phase error group information and / or the transmission and reception phase error group information.

[0148] In the present disclosure, the transmission phase error may be the phase error generated when the TRP modulates the reference signal, the reception phase error may be the phase error generated when the TRP demodulates the reference signal, and the transmission and reception phase error may be the phase error generated when the TRP modulates and demodulates the reference signal.

[0149] In this disclosure, when performing positioning based on carrier phase, it includes the access network device sending a downlink reference signal, and the terminal device receiving the downlink reference signal and measuring it. Among them, after the access network device modulates the downlink reference signal into a radio frequency signal, a phase error will be generated. Therefore, the phase error group information corresponding to the phase error generated by the access network device during the modulation of the reference signal can be used as the phase error group information on the access network device side corresponding to this reference signal and sent to the core network device. After that, the core network device can send this phase error group information to the terminal device. Thus, the terminal device can determine the phase error generated by the transmit-receive point during the modulation of the reference signal, and based on this phase error and the measurement result of this reference signal, determine the position of the terminal device, thereby improving the positioning accuracy.

[0150] In this disclosure, the access network device can send to the core network device the phase error group information on the TRP side corresponding to each reference signal. After that, the core network device can send the phase error group information to the terminal device. Thus, the terminal device can determine the phase error generated by the access network device during the modulation of the reference signal based on this phase error group information, and based on this phase error and the measurement result of this reference signal, determine the position of the terminal device, thereby improving the positioning accuracy.

[0151] Please refer to Figure 11 , Figure 11 which is a schematic flowchart of a carrier phase positioning method provided by an embodiment of this disclosure. This method is executed by the access network device. As Figure 11 shown, this method may include but is not limited to the following steps:

[0152] Step 1101, send to the core network device the phase error group information used to indicate the TRP side.

[0153] In this disclosure, for the specific implementation process of step 1101, reference can be made to the detailed description of any embodiment in this disclosure, which will not be elaborated here.

[0154] Step 1102, in response to the phase error group information being the phase error group ID, send to the core network device the error value corresponding to each phase error group ID.

[0155] In this disclosure, when the phase error group information is the phase error group ID, the TRP can also send the error value corresponding to each phase error group ID to the core network device. Thus, the core network device can determine the error value corresponding to the group based on the phase error group ID, and based on this phase error and the measurement result, determine the position of the terminal device, thereby improving the positioning accuracy.

[0156] It should be noted that after the access network device sends the phase error group ID to the core network, it may not separately indicate the error value corresponding to each such phase error group ID. The core network device determines the error value corresponding to the phase error group ID according to the protocol agreement, and the present disclosure does not limit this.

[0157] In the present disclosure, the access network device may send to the core network device the TRP-side phase error group information corresponding to each reference signal. When the phase error group information is the phase error group ID, the error value corresponding to each phase error group ID may be sent to the core network device. After that, the core network device may send the error value corresponding to each phase error group ID to the terminal device. Thus, the terminal device may determine the error value corresponding to the phase error group according to the phase error group ID, and determine the terminal position according to the error value and the measurement result, thereby improving the positioning accuracy.

[0158] Please refer to Figure 12 which is a schematic structural diagram of a communication device 1200 provided by an embodiment of the present disclosure. Figure 12 The illustrated communication device 1200 may include a transceiver module 1201. The transceiver module 1201 may include a sending module and / or a receiving module. The sending module is used to implement the sending function, the receiving module is used to implement the receiving function, and the transceiver module 1201 may implement the sending function and / or the receiving function.

[0159] It can be understood that the communication device 1200 may be a terminal device, or a device in the terminal device, or a device that can be used in matching with the terminal device.

[0160] On the terminal device side of the communication device 1200, where:

[0161] The transceiver module 1201 is used to receive the phase error auxiliary information sent by the core network device, where the phase error auxiliary information is used to indicate the phase error group information of each reference signal.

[0162] Optionally, the phase error group information includes the phase error group information on the transmit receive point (TRP) side.

[0163] Optionally, the phase error group information is at least one of the following:

[0164] Transmit phase error group information;

[0165] Receive phase error group information; and

[0166] Transmit receive phase error group information.

[0167] Optionally, the reference signal is a downlink reference signal, and the phase error group information is transmission phase error group information, and / or transmission and reception phase error group information.

[0168] Optionally, 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.

[0169] In the present disclosure, a terminal device may receive phase error assistance information sent by a core network device for indicating phase error group information of each reference signal. Then, the terminal device may determine a phase error generated by a transmission and reception point when modulating the reference signal according to the phase error group information on the transmission and reception point side of the reference signal, and determine the terminal location according to the phase error and a measurement result of the reference signal, thereby improving the positioning accuracy.

[0170] It should be noted that the above apparatus embodiments are obtained based on the method embodiments. For specific descriptions, reference may be made to the method embodiment part, which will not be elaborated here.

[0171] It can be understood that the communication device 1200 may be a core network device, or a device in the core network device, or a device that can be used in cooperation with the core network device.

[0172] The communication device 1200, on the core network device side, wherein:

[0173] A transceiver module 1201 is configured to send phase error assistance information to a terminal device, where the phase error assistance information is used to indicate phase error group information of each reference signal.

[0174] Optionally, the phase error group information includes phase error group information on the transmission and reception point (TRP) side.

[0175] Optionally, the above transceiver module 1201 is further configured to:

[0176] Receive the phase error group information on the TRP side sent by an access network device, where the phase error group information on the TRP side includes phase error group information on the TRP side for indicating each reference signal and / or phase error group information on the TRP side for indicating each measurement result.

[0177] Optionally, the phase error group information is at least one of the following:

[0178] Transmission phase error group information;

[0179] Reception phase error group information; and

[0180] Transmission and reception phase error group information.

[0181] Optionally, the reference signal is a downlink reference signal, and the phase error group information is transmission phase error group information, and / or transmission and reception phase error group information.

[0182] Optionally, at least one of the fractional part of the carrier phase and the integer number of full cycles is included in the measurement result, and the phase error group information is reception phase error group information, and / or transmission and reception phase error group information.

[0183] Optionally, 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.

[0184] In the present disclosure, the core network device may send phase error assistance information for indicating the phase error group information of each reference signal to the terminal device. After that, the terminal device may determine the phase error generated when the transmission and reception point modulates the reference signal according to the phase error group information on the transmission and reception point side of the reference signal, and determine the terminal position according to the phase error and the measurement result of the reference signal, thereby improving the positioning accuracy.

[0185] It should be noted that the above device embodiments are obtained based on the method embodiments. For specific descriptions, reference may be made to the method embodiment part, which will not be elaborated here.

[0186] It can be understood that the communication device 1200 may be an access network device, or a device in the access network device, or a device that can be used in matching with the access network device.

[0187] The communication device 1200, on the access network device side, wherein:

[0188] A transceiver module 1201 is configured to send the phase error group information on the transmission and reception point (TRP) side to the core network device.

[0189] Optionally, the phase error group information is at least one of the following:

[0190] Transmission phase error group information;

[0191] Reception phase error group information; and

[0192] Transmission and reception phase error group information.

[0193] Optionally, the phase error group information includes the phase error group information on the TRP side for each measurement result, wherein at least one of the fractional part of the carrier phase and the integer number of full cycles is included in the measurement result.

[0194] Optionally, the phase error group information on the TRP side includes at least one of the following: reception phase error group information, transmission and reception phase error group information.

[0195] Optionally, the phase error group information includes the phase error group information on the TRP side for each reference signal.

[0196] Optionally, the reference signal is a downlink reference signal, and the TRP side phase error group information is transmission phase error group information, and / or, transmission and reception phase error group information.

[0197] Optionally, 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.

[0198] In the present disclosure, the access network device sends the phase error group information on the TRP side to the core network device. After that, the core network device can send the phase error group information to the terminal device. Thus, the terminal device can determine the phase error generated by the transmit-receive point in modulating or demodulating the reference signal, and based on this phase error, as well as the fractional part and the integer number of cycles of the carrier phase, determine the position of the terminal device, thereby improving the positioning accuracy.

[0199] It should be noted that the above device embodiments are obtained based on the method embodiments. For specific descriptions, reference can be made to the method embodiment part, which will not be elaborated here.

[0200] Please refer to Figure 13 , Figure 13 which is a schematic structural diagram of another communication device 1200 provided by the embodiments of the present disclosure. The communication device 1300 can be a network device, or a terminal device, or a chip, a chip system, or a processor, etc. that supports the network device to implement the above method, and can also be a chip, a chip system, or a processor, etc. that supports the terminal device to implement the above method. This device can be used to implement the method described in the above method embodiments. For specific details, reference can be made to the descriptions in the above method embodiments.

[0201] The communication device 1300 may include one or more processors 1301. The processor 1301 can be a general-purpose processor or a dedicated processor, etc. 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, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute computer programs, and process the data of the computer programs.

[0202] Optionally, the communication device 1300 may further include one or more memories 1302, on which a computer program 1304 may be stored. The processor 1301 executes the computer program 1304 to cause the communication device 1300 to execute the methods described in the above method embodiments. Optionally, data may also be stored in the memory 1302. The communication device 1300 and the memory 1302 may be provided separately or integrated together.

[0203] Optionally, the communication device 1300 may further include a transceiver 1305 and an antenna 1306. The transceiver 1305 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., and is used to implement the transceiver function. The transceiver 1305 may include a receiver and a transmitter. The receiver may be referred to as a receiver or a receiving circuit, etc., and is used to implement the receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., and is used to implement the transmitting function.

[0204] Optionally, the communication device 1300 may further include one or more interface circuits 1307. The interface circuit 1307 is used to receive code instructions and transmit them to the processor 1301. The processor 1301 runs the code instructions to cause the communication device 1300 to execute the methods described in the above method embodiments.

[0205] The communication device 1300 is a terminal device: The transceiver 1305 is used to execute Figure 2 step 201 in Figure 3 step 301 in etc.

[0206] The communication device 1300 is a core network device: The processor 1301 is used to execute Figure 5 step 502 in etc.

[0207] The communication device 1300 is an access network device: The processor 1301 is used to execute Figure 11 step 1102 in etc.

[0208] In one implementation, the processor 1301 may include a transceiver for implementing the receiving and sending functions. For example, the transceiver may be a transceiver circuit, or an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing the receiving and sending functions may be separate or integrated together. The above transceiver circuit, interface, or interface circuit may be used for reading and writing code / data, or the above transceiver circuit, interface, or interface circuit may be used for signal transmission or transfer.

[0209] In one implementation, the processor 1301 may store a computer program 1303, which runs on the processor 1301 and enables the communication device 1300 to perform the method described in the above method embodiment. The computer program 1303 may be fixed in the processor 1301, in which case the processor 1301 may be implemented by hardware.

[0210] In one implementation, the communication device 1300 may include a circuit that can implement the functions of sending or receiving or communicating in the aforementioned method embodiments. The processor and transceiver described in the present disclosure may be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processor and transceiver may also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (nMetal-oxide-semiconductor, NMOS), P-type metal oxide semiconductor (positive channelmetal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0211] 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 above 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 be limited thereto. Figure 13 The communication device may be an independent device or may be part of a larger device. For example, the communication device may be:

[0212] (1) Independent integrated circuit IC, or chip, or chip system or subsystem;

[0213] (2) having a set of one or more ICs, and optionally, the IC set may also include a storage component for storing data and computer programs;

[0214] (3) ASIC, such as modem;

[0215] (4) Modules that can be embedded in other devices;

[0216] (5) Receivers, terminal devices, intelligent terminal devices, cellular phones, wireless devices, handheld devices, mobile units, in-vehicle devices, network devices, cloud devices, artificial intelligence devices, etc.;

[0217] (6) Others, etc.

[0218] For the case where the communication device is a chip or a chip system, reference can be made to Figure 14 the structural schematic diagram of the chip shown. Figure 14 The chip shown includes a processor 1401 and an interface 1403. Among them, the number of processors 1401 can be one or more, and the number of interfaces 1403 can be multiple.

[0219] For the case where the chip is used to implement the functions of the terminal device in the embodiments of the present disclosure:

[0220] The interface 1403 is used to execute Figure 2 step 201 in Figure 3 step 301 in, etc.

[0221] For the case where the chip is used to implement the functions of the core network device in the embodiments of the present disclosure:

[0222] The interface 1403 is used to execute Figure 4 step 401 in Figure 5 step 501 in Figure 6 step 601 in Figure 7 step 701, step 702 in, etc.

[0223] For the case where the chip is used to implement the functions of the access network device in the embodiments of the present disclosure:

[0224] The interface 1403 is used to execute Figure 8 step 801 in Figure 9 step 901 in Figure 10 step 1001 in Figure 11 step 1101 in, etc.

[0225] Optionally, the chip further includes a memory 1403, and the memory 1403 is used to store necessary computer programs and data.

[0226] 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 a function is implemented by hardware or software depends on the specific application and the design requirements of the entire system. For each specific application, those skilled in the art can use various methods to implement the described function, but such implementation should not be construed as exceeding the scope protected by the embodiments of the present disclosure.

[0227] 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 one of the above method embodiments are implemented.

[0228] The present disclosure also provides a computer program product, and when the computer program product is executed by a computer, the functions of any one of the above method embodiments are implemented.

[0229] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can 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 the embodiments of the present disclosure are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer program can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another, for example, the computer program can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more integrated available media. The available medium can be a magnetic medium (such as a floppy disk, hard disk, magnetic tape), an optical medium (such as a high-density digital video disc (DVD)), or a semiconductor medium (such as a solid state disk (SSD)).

[0230] It can be understood that in the present disclosure, "a plurality of" means two or more, and other quantifiers are similar thereto. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. The singular forms of "a", "the", and "said" are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0231] It can be further understood that although the operations are described in a specific order in the drawings in the embodiments of the present disclosure, it should not be understood as requiring these operations to be performed in the specific order shown or in a serial order, or requiring all the operations shown to obtain the desired result. In a specific environment, multitasking and parallel processing may be advantageous.

[0232] Those of ordinary skill in the art can understand that the various numerical numbers such as the first, second, etc. involved in the present disclosure are only for the convenience of description and are not used to limit the scope of the embodiments of the present disclosure, nor do they represent the order of precedence.

[0233] At least one in the present disclosure can also be described as one or more. The plurality can be two, three, four, or more, and the present disclosure does not make any restrictions. In the embodiments of the present disclosure, for a technical feature, the technical features in this technical feature are distinguished by "the first", "the second", "the third", "A", "B", "C", and "D", etc. There is no order of precedence or size order among the technical features described by the "first", "the second", "the third", "A", "B", "C", and "D".

[0234] The corresponding relationships shown in each table in the present disclosure can be configured or predefined. The values taken by the information in each table are only examples and can be configured as other values, and the present disclosure does not limit this. When configuring the corresponding relationships between the configuration information and each parameter, it is not necessarily required to configure all the corresponding relationships shown in each table. For example, in the tables of the present disclosure, the corresponding relationships shown in some rows can also not be configured. Also, for example, appropriate deformation adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables can also adopt other names understandable by the communication device, and the values taken or representation methods of the parameters can also be other values or representation methods 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 maps, etc.

[0235] The predefined in the present disclosure can be understood as defining, predefining, storing, prestoring, pre-negotiating, pre-configuring, solidifying, or pre-burning.

[0236] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination 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 in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professionals can use different methods for each specific application to implement the described functions, but such implementation should not be considered to exceed the scope of this disclosure.

[0237] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0238] After considering the specification and practicing the invention disclosed herein, those skilled in the art will readily think of other embodiments of this disclosure. This application is intended to cover any variations, uses, or adaptations of this disclosure, which follow the general principles of this disclosure and include well-known common knowledge or conventional technical means in the technical field not disclosed in this disclosure. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of this disclosure are pointed out by the following claims.

[0239] As described above, this is only the specific implementation manner of this disclosure, but the protection scope of this disclosure is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by this disclosure and should be covered by the protection scope of this disclosure. Therefore, the protection scope of this disclosure should be subject to the protection scope of the claims.

Claims

1. A method for carrier phase positioning, characterized in that, Executed by a terminal device, the method includes: Receiving phase error assistance information sent by a core network device, where the phase error assistance information is used to indicate the phase error group information of each reference signal. The phase error group information includes the phase error group information on the transmit-receive point (TRP) side, and the phase error group information includes a phase error group identifier (ID) and an error value corresponding to the phase error group ID. The error value is at least one of the following: the phase difference between two signals before and after modulation, and the phase difference between two signals before and after demodulation.

2. The method according to claim 1, wherein The phase error group information is at least one of the following: Transmit phase error group information; Receive phase error group information; Transmit and receive phase error group information.

3. The method according to any one of claims 1-2, characterized in that The reference signal is a downlink reference signal, and the phase error group information is transmit phase error group information and / or transmit and receive phase error group information.

4. A method for carrier phase positioning, characterized in that, Executed by a core network device, the method includes: Sending phase error assistance information to a terminal device, where the phase error assistance information is used to indicate the phase error group information of each reference signal. The phase error group information includes the phase error group information on the transmit-receive point (TRP) side sent by an access network device, and the phase error group information includes a phase error group identifier (ID) and an error value corresponding to the phase error group ID. The error value is at least one of the following: the phase difference between two signals before and after modulation, and the phase difference between two signals before and after demodulation.

5. The method according to claim 4, characterized in that The phase error group information on the TRP side includes the phase error group information on the TRP side for indicating each reference signal and / or the phase error group information on the TRP side for indicating each measurement result.

6. The method according to any one of claims 4-5, characterized in that, The phase error group information is at least one of the following: Transmit phase error group information; Receive phase error group information; and Transmit and receive phase error group information.

7. The method according to claim 6, characterized in that The reference signal is a downlink reference signal, and the phase error group information is transmit phase error group information and / or transmit and receive phase error group information.

8. The method according to claim 5, characterized in that At least one of the fractional part of the carrier phase and the integer number of full cycles is included in the measurement result, and the phase error group information is receive phase error group information and / or transmit and receive phase error group information.

9. A method for carrier phase positioning, characterized in that, Executed by an access network device, the method includes: Sending the phase error group information on the transmit-receive point (TRP) side to a core network device. The phase error group information includes at least one of the following: a phase error group identifier (ID) and an error value corresponding to the phase error group ID. The error value is at least one of the following: the phase difference between two signals before and after modulation, and the phase difference between two signals before and after demodulation.

10. The method according to claim 9, characterized in that, The phase error group information is at least one of the following: Transmit phase error group information; Receive phase error group information; and Transmit and receive phase error group information.

11. The method according to claim 10, characterized in that The phase error group information includes the phase error group information on the TRP side for each measurement result, where at least one of the fractional part of the carrier phase and the integer number of full cycles is included in the measurement result.

12. The method according to claim 11, wherein The phase error group information on the TRP side includes at least one of the following: received phase error group information, transmit-receive phase error group information.

13. The method according to any one of claims 9 - 12, characterized in that The phase error group information includes the phase error group information on the TRP side for each reference signal.

14. The method according to claim 13, characterized in that The reference signal is a downlink reference signal, and the phase error group information on the TRP side is transmit phase error group information, and / or transmit-receive phase error group information.

15. A communication device, characterized in that, including: a transceiver module, configured to receive phase error assistance information sent by a core network device, where the phase error assistance information is used to indicate the phase error group information for each reference signal, the phase error group information includes the phase error group information on the transmit-receive point (TRP) side, and 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, and the error value is at least one of the following: a phase difference between two signals before and after modulation, a phase difference between two signals before and after demodulation.

16. The device according to claim 15, characterized in that, The phase error group information is at least one of the following: transmit phase error group information; received phase error group information; and transmit-receive phase error group information.

17. The apparatus according to any one of claims 15 - 16, characterized in that The reference signal is a downlink reference signal, and the phase error group information is transmit phase error group information, and / or transmit-receive phase error group information.

18. A communication device, characterized in that, including: a transceiver module, configured to send phase error assistance information to a terminal device, where the phase error assistance information is used to indicate the phase error group information for each reference signal, the phase error group information includes the phase error group information on the transmit-receive point (TRP) side sent by an access network device, and 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, and the error value is at least one of the following: a phase difference between two signals before and after modulation, a phase difference between two signals before and after demodulation.

19. The device according to claim 18, characterized in that, The phase error group information on the TRP side includes the phase error group information on the TRP side for indicating each reference signal and / or the phase error group information on the TRP side for indicating each measurement result.

20. The device according to any one of claims 18-19, characterized in that, The phase error group information is at least one of the following: transmit phase error group information; received phase error group information; and transmit-receive phase error group information.

21. The apparatus according to claim 20, characterized in that The reference signal is a downlink reference signal, and the phase error group information is transmit phase error group information, and / or transmit-receive phase error group information.

22. The characteristic of the apparatus according to claim 19 is that The measurement result includes at least one of the fractional part of the carrier phase and the integer number of full cycles, and the phase error group information is received phase error group information, and / or transmit-receive phase error group information.

23. A communication device, characterized in that, It includes: A transceiver module, configured to send phase error group information on the transmit-receive point (TRP) side to a core network device, where the phase error group information includes at least one of the following: a phase error group identifier (ID), and an error value corresponding to the phase error group ID, and the error value is at least one of the following: the phase difference between two signals before and after modulation, and the phase difference between two signals before and after demodulation.

24. The device according to claim 23, characterized in that, The phase error group information is at least one of the following: Transmit phase error group information; Receive phase error group information; and Transmit-receive phase error group information.

25. The apparatus according to claim 24, wherein The phase error group information includes the phase error group information on the TRP side for each measurement result, where the measurement result includes at least one of the fractional part of the carrier phase and the integer number of full cycles.

26. The device according to claim 25, characterized in that, The phase error group information on the TRP side includes at least one of the following: receive phase error group information, transmit-receive phase error group information.

27. The apparatus according to any one of claims 23-26, wherein The phase error group information includes the phase error group information on the TRP side for each reference signal.

28. The apparatus according to claim 27, wherein The reference signal is a downlink reference signal, and the phase error group information on the TRP side is transmit phase error group information, and / or transmit-receive phase error group information.

29. A communication device, characterized in that, The apparatus 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 to enable the apparatus to execute the method according to any one of claims 1 to 3, or execute the method according to any one of claims 4 to 8, or execute the method according to any one of claims 9 to 14.

30. A computer-readable storage medium, configured to store instructions, which when executed, enable the method according to any one of claims 1 to 3 to be implemented, or enable the method according to any one of claims 4 to 8 to be implemented, or enable the method according to any one of claims 9 to 14 to be implemented.

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