Positioning method and device, storage medium and computer program product
By receiving multiple signals and leveraging their bandwidth advantages, and compensating with the position information of the antenna panel, the balance problem of existing positioning technologies in accuracy and reliability is solved, and higher positioning accuracy and reliability are achieved.
Patent Information
- Application Number
- CN202311282447.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-27
- Publication Date
- 2025-03-28
AI Technical Summary
Existing positioning technologies are difficult to find a balance between high accuracy and high reliability, especially in various positioning scenarios in 5G networks. How to improve positioning accuracy has become an urgent problem.
By receiving multiple signals to determine a measurement result, the bandwidth of the multiple signals is greater, and the signal bandwidth is inversely correlated with the error of the measurement result, thereby improving the accuracy of the measurement result. The specific method includes receiving signals using different ARPs of multiple antenna panels and compensating based on the position information of these signals to improve positioning accuracy.
It improves positioning accuracy, reduces the error of measurement results, and enhances the application ability of positioning technology in 5G networks.
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Figure CN119729339A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of positioning technology, and in particular to a positioning method, device, storage medium and computer program product. Background Art
[0002] With the rapid development of communication technology, high-precision positioning has gradually been identified as an important research project in the 5th generation mobile networks or 5th generation wireless systems (5G) of the 3rd Generation Partnership Project (3GPP). The scenarios of New Radio (NR) positioning mainly include: enhanced mobile broadband (eMBB) outdoor, eMBB indoor, ultra-reliable and low latency communications (URLLC) and massive machine type of communication (mMTC) / Internet of things (IOT). It is also required to have high security, scalability, high availability and accuracy assurance in high-speed applications.
[0003] The 3GPP standard supports multiple positioning technologies such as time of arrival (TOA), time difference of arrival (TDOA), angle of departure (AOD), angle of arrival (AOA), and round trip time (RTT). Positioning technologies can be mainly divided into uplink positioning technology, downlink positioning technology, and uplink / downlink positioning technology. In the uplink positioning technology, the base station can measure the signal sent by the terminal device to obtain a measurement result, which can be used to estimate the position of the terminal device. In the downlink positioning technology, the terminal device can measure the signal sent by the base station to obtain a measurement result, which can be used to estimate the position of the terminal device. In the uplink / downlink positioning technology, both the terminal device and the base station need to measure the received signal to obtain a measurement result for positioning. How to further improve the positioning accuracy has become an urgent problem to be solved. Summary of the invention
[0004] The embodiments of the present application provide a communication method, device, storage medium and computer program product for determining a measurement result based on multiple signals. Since the bandwidth of the multiple signals is larger and the signal bandwidth is inversely correlated with the error of the measurement result, the error of the measurement result is smaller and the accuracy is higher, which can improve the positioning accuracy.
[0005] In a first aspect, an embodiment of the present application provides a positioning method, which can be applicable to a first device. The first device can be, for example, a terminal device or a unit, module or chip (system) inside the terminal device.
[0006] In the method, a first device receives a first signal. The first signal is sent via a first antenna reference point (ARP) of a second device. The first device receives a second signal. The second signal is sent via a second ARP of the second device, and the second ARP is different from the first ARP. The first device determines a first measurement result based on first information, the first signal, and the second signal, the first information including information indicating a location of the first ARP and a location of the second ARP. The first measurement result is used for positioning. For example, the first measurement result can be used to locate the first device.
[0007] In the case of determining the measurement result based on the first signal and the second signal, the first ARP used to send the first signal and the second ARP used to send the second signal may belong to different antenna panels. If it is assumed that the first ARP and the second ARP belong to the same antenna panel, the measurement result determined based on the first signal and the second signal in this case is not very accurate. In the above scheme, since the first information includes information indicating the location of the first ARP and the location of the second ARP, and the first device determines the first measurement result based on the first information, the first signal and the second signal, the accuracy of the first measurement result is higher, which can improve the positioning accuracy.
[0008] In a possible implementation, the first signal corresponds to a first positioning frequency layer (PFL), and the second signal corresponds to a second PFL. It can also be understood that the carrier frequency of the first signal is the first PFL, and the carrier frequency of the second signal is the second PFL. The signal on the first PFL may be sent through the first ARP of the second device, and the signal on the second PFL may be sent through the second ARP of the second device. It can also be understood that the first PFL and the second PFL are sent in an aggregate. The first device can combine the signals sent on the first PFL and the second PFL, and then determine the first measurement result based on the two signals. Since a signal with a larger bandwidth can be obtained after the signals transmitted on the two PFLs are aggregated, and since the signal bandwidth is inversely correlated with the estimated error of the measurement result, the error of the first measurement result determined based on the signal with a larger bandwidth is smaller and the accuracy is higher.
[0009] In a possible implementation, the first device performs a compensation operation on the first signal and / or the second signal according to the first information. The first device may compensate the first signal and / or the second signal based on the first information, and then determine the first measurement result. The first device may also compensate the channel estimation result of the first signal and / or the channel estimation result of the second signal based on the first information, and then determine the first measurement result. The compensation method is relatively flexible, and these schemes can improve the accuracy of the first measurement result.
[0010] In one possible implementation, the first device determines the first measurement result based on at least one of the following: a channel estimation result of the compensated first signal and a channel estimation result of the second signal; a channel estimation result of the first signal and a channel estimation result of the compensated second signal; a channel estimation result of the compensated first signal and a channel estimation result of the compensated second signal; the compensated first signal and the second signal; the first signal and the compensated second signal; or, the compensated first signal and the compensated second signal.
[0011] In a possible implementation, the first device determines third information based on the first information, the third information including a phase difference and / or a delay difference between a signal transmitted by a channel of the first signal and a signal transmitted by a channel of the second signal. The first device performs a compensation operation on the first signal and / or the second signal based on the third information.
[0012] Since the distance between the first ARP and the second ARP has a significant impact on the phase difference and / or delay difference between the signal transmitted by the channel of the first signal and the channel of the second signal, the first device determines the third information based on the first information and then performs compensation operations based on the third information. This can improve the accuracy of the compensation amount, thereby further improving the accuracy of the first measurement result.
[0013] In a possible implementation, the first device determines the distance difference information corresponding to the channel of the first signal and the channel of the second signal according to the first information. The first device determines the third information according to the distance difference information.
[0014] Since the phase difference and / or delay difference between the signal transmitted by the channel of the first signal and the channel of the second signal may be caused by the distance difference between the two channels, the first device determines the phase difference and / or delay difference between the two channels based on the information of the distance difference between the two signals, so that a more accurate phase difference and / or delay difference can be obtained, and then the accuracy of the first measurement result can be improved, thereby further improving the positioning accuracy.
[0015] In a possible implementation, the first device determines distance information between the first ARP and the second ARP based on the first information. The first device acquires the second information. The second information includes arrival angle information of a signal sent by the first device to the second device, and / or departure angle information of a signal sent by the second device to the first device. The first device determines the distance difference information based on the distance information and the second information.
[0016] The corresponding distance difference information between the channel of the first signal and the channel of the second signal is caused by the distance between the first ARP and the second ARP, and there may be a certain geometric relationship between the distance between the first ARP and the second ARP and the distance difference. Since the first device can determine the distance difference information in combination with the second information, the accuracy of the distance difference information can be improved, and then the accuracy of the first measurement result can be improved, thereby further improving the positioning accuracy.
[0017] In a possible implementation, the information indicating the position of the first ARP and the position of the second ARP includes at least one of the following: position information of the first ARP and the position information of the second ARP; relative position information of the first ARP and the second ARP; distance information between the first ARP and the second ARP; or information indicating the distance between the second antenna panel and the first antenna panel. The first ARP corresponds to the first antenna panel of the second device, and the second ARP corresponds to the second antenna panel of the second device.
[0018] The first information may include information on association between the first ARP and the second ARP, and may also include information on association between the first antenna panel and the second antenna panel. The solution is relatively flexible.
[0019] In one possible embodiment, the information used to indicate the distance between the second antenna panel and the first antenna panel includes: position information of the first antenna panel and position information of the second antenna panel; relative position information between the first antenna panel and the second antenna panel; distance information between the second antenna panel and the first antenna panel; orientation information of the first antenna panel; orientation information of the second antenna panel; relative orientation information of the first antenna panel and the second antenna panel; contour information of the first antenna panel; or, at least one item of contour information of the second antenna panel.
[0020] The first device receives information associated with these antenna panels (such as the first antenna panel and the second antenna panel), such as position, orientation, or contour information, and the first device can calculate the distance between the first ARP and the second ARP based on the information, and then determine the first measurement result based on the distance information. These solutions can reduce the complexity of sending the first information on the second device side and reduce the requirements on the second device.
[0021] In a possible implementation, the contour information of the first antenna panel includes: at least one of the shape information of the first antenna panel, the size information of the first antenna panel, the distance information between two antenna elements of the first antenna panel, or the distance information between the antenna element of the first antenna panel and the edge of the first antenna panel. In a possible implementation, the contour information of the second antenna panel includes: at least one of the shape information of the second antenna panel, the size information of the second antenna panel, the distance information between two antenna elements of the second antenna panel, or the distance information between the antenna element of the second antenna panel and the edge of the second antenna panel.
[0022] In a possible implementation, the distance information between the first ARP and the second ARP is determined according to at least one of the following: the distance between the first ARP and the second ARP; the distance between the edge of the first antenna panel and the edge of the second antenna panel; the distance between the antenna array on the edge of the first antenna panel and the antenna array on the edge of the second antenna panel; the distance between the antenna array on the edge of the first antenna panel and the edge of the first antenna panel; the distance between the antenna array on the edge of the second antenna panel and the edge of the second antenna panel; the spacing between the antenna arrays on the first antenna panel; the spacing between the antenna arrays on the second antenna panel; the side length of the first antenna panel; or, the side length of the second antenna panel. This implementation provides a variety of possible implementations for the first device to determine the distance between the first ARP and the second ARP, thereby improving the flexibility of the solution.
[0023] In a possible implementation, the time domain resources occupied by the first signal and the time domain resources occupied by the second signal are the same, so that the two signals can be guaranteed to experience the channel at the same time, and thus the first measurement result determined based on the two signals can be more accurate.
[0024] In a possible implementation manner, the frequency domain resources occupied by the first signal and the frequency domain resources occupied by the second signal are continuous frequency domain resources within a preset frequency band. In this way, it can be more compatible with existing technologies.
[0025] In a possible implementation, the first device sends the first measurement result. The first device may send the first measurement result to another device, such as a second device or a positioning management device, so that the second device or the positioning management device can locate the first device.
[0026] In a possible implementation, the first device sends a first indication message, and the first indication message indicates that the first measurement result is determined based on the first information. The first device may send the first indication message to the positioning management device. After the positioning management device obtains the first indication message, it may determine that the first measurement result is determined based on at least one signal or channel estimation result after antenna panel spacing compensation. In this way, the positioning management device may determine that the accuracy or reliability of the first measurement result is high based on the first indication message, and then when positioning the first device, it may perform positioning based on a measurement result with higher accuracy or reliability, or set a larger weight for a measurement result with higher accuracy or reliability, thereby improving positioning accuracy.
[0027] In a possible implementation, the first device receives the first information. For example, the second device may send the first information to the positioning management device, and the positioning management device sends the received first information to the first device. For example, the positioning management device may send the first information through a positioning request and information exchange signaling. Alternatively, the second device may send the first information to the first device.
[0028] For another example, the first information may also be pre-configured in the first device, such as the first information may be a preset value configured based on some historical experience. The first device may compensate the first signal and / or the second signal based on these preset values, or compensate the channel estimation result of the first signal and / or the channel estimation result of the second channel, thereby improving the estimation accuracy of the first measurement result.
[0029] In a second aspect, an embodiment of the present application provides a positioning method, which can be applicable to a second device. The second device can be, for example, a network device or a unit, module or chip (system) inside the network device.
[0030] The method includes: a second device sends a first signal through a first ARP. The second device sends a second signal through a second ARP. The second ARP is different from the first ARP. The second device sends first information. The first information includes information for indicating the location of the first ARP and the location of the second ARP. The first information, the first signal, and the second signal are used to determine a first measurement result, and the first measurement result is used for positioning.
[0031] Since the second device sends the first information, the first information includes information used to indicate the location of the first ARP and the location of the second ARP. Therefore, the first device can determine the first measurement result in combination with the first information, the first signal and the second signal. Therefore, the accuracy of the first measurement result is higher, which can improve the positioning accuracy.
[0032] For related introduction, please refer to the relevant content of the first aspect mentioned above, which will not be repeated here.
[0033] In a third aspect, the embodiments of the present application provide a positioning method, which can be applicable to a positioning management device. The positioning management device can be, for example, a positioning management device or a unit, module or chip (system) inside the positioning management device.
[0034] The positioning management device receives a first measurement result. The first measurement result is determined based on the first information, the first signal, and the second signal. The first signal is sent through a first ARP of the second device, the second signal is sent through a second ARP of the second device, the second ARP is different from the first ARP, and the first information includes information indicating the location of the first ARP and the location of the second ARP. The positioning management device performs positioning based on the first measurement result.
[0035] Since the first measurement result is determined in combination with the first information, the first signal and the second signal, and since the first information includes information for indicating the location of the first ARP and the location of the second ARP, the accuracy of the first measurement result is relatively high. Subsequently, the positioning management device can improve the positioning accuracy by performing positioning based on the first measurement result.
[0036] In a possible implementation, the positioning management device receives first indication information. The first indication information indicates that the first measurement result is determined according to the first information. For related introduction, please refer to the related content of the first aspect above, which will not be described in detail.
[0037] In a fourth aspect, an embodiment of the present application provides a positioning method, which can be applicable to a second device. The second device can be, for example, a network device or a unit, module or chip (system) inside the network device.
[0038] The second device receives a third signal from the first device through a third ARP. The second device receives a fourth signal from the first device through a fourth ARP. The fourth ARP is different from the third ARP. The second device determines a second measurement result based on the fourth information, the third signal, and the fourth signal, the fourth information including information indicating the location of the third ARP and the location of the fourth ARP, and the second measurement result is used to locate the first device.
[0039] In the case of determining the measurement result based on the third signal and the fourth signal, the third ARP for receiving the third signal and the fourth ARP for receiving the fourth signal may belong to different antenna panels. If it is assumed that the third ARP and the fourth ARP belong to the same antenna panel, the measurement result determined based on the third signal and the fourth signal in this case is not very accurate. In the above scheme, since the fourth information includes information indicating the position of the third ARP and the position of the fourth ARP, and the second device determines the second measurement result in combination with the fourth information, the third signal and the fourth signal, the accuracy of the second measurement result is higher, which can improve the positioning accuracy.
[0040] In a possible implementation, the third signal corresponds to a first carrier (component carrier, CC), and the fourth signal corresponds to a second CC. The first CC can be understood as the carrier of the third signal, and the second CC can be understood as the carrier of the fourth signal. The signal on the first CC can be received through the third ARP of the second device, and the signal on the second CC can be received through the fourth ARP of the second device. It can also be understood that the first CC and the second CC are sent in an aggregate. The second device can aggregate the signals sent on the first CC and the second CC, and then determine the second measurement result based on the two signals. Since a signal with a larger bandwidth can be obtained after the signals transmitted on the two CCs are aggregated, and since the signal bandwidth is inversely correlated with the estimated error of the measurement result, the error of the second measurement result determined based on the signal with a larger bandwidth is smaller and the accuracy is higher.
[0041] In a possible implementation, the second device performs a compensation operation on the third signal and / or the fourth signal according to the fourth information. For example, the second device may compensate the third signal and / or the fourth signal based on the fourth information, and then determine the second measurement result. The second device may also compensate the channel estimation result of the third signal and / or the channel estimation result of the fourth signal based on the fourth information, and then determine the second measurement result. The compensation method is relatively flexible, and these schemes can improve the accuracy of the second measurement result.
[0042] In one possible implementation, the second device determines the second measurement result based on at least one of the following: a channel estimation result of the compensated third signal and a channel estimation result of the fourth signal; a channel estimation result of the third signal and a channel estimation result of the compensated fourth signal; a channel estimation result of the compensated third signal and a channel estimation result of the compensated fourth signal; the compensated third signal and the fourth signal; the third signal and the compensated fourth signal; or, the compensated third signal and the compensated fourth signal.
[0043] In a possible implementation, the second device determines sixth information based on the fourth information, where the sixth information includes a phase difference and / or a delay difference between a signal transmitted by a channel of the third signal and a signal transmitted by a channel of the fourth signal. The second device performs a compensation operation on the third signal and / or the fourth signal based on the sixth information.
[0044] Since the distance between the third ARP and the fourth ARP has a significant impact on the phase difference and / or delay difference between the signal transmitted by the channel of the third signal and the channel of the fourth signal, the second device determines the sixth information based on the fourth information and then performs compensation operations based on the sixth information. This can improve the accuracy of the compensation amount, and further improve the accuracy of the second measurement result.
[0045] In a possible implementation, the second device determines the distance difference information corresponding to the channel of the third signal and the channel of the fourth signal at least according to the fourth information. The second device determines the sixth information according to the distance difference information.
[0046] Since the phase difference and / or delay difference between the signal transmitted by the channel of the third signal and the channel of the fourth signal may be caused by the distance difference between the two channels, the second device determines the phase difference and / or delay difference between the two channels based on the information of the distance difference between the two signals, and can obtain a more accurate phase difference and / or delay difference, thereby improving the accuracy of the second measurement result, thereby further improving the positioning accuracy.
[0047] In a possible implementation, the second device determines the distance information between the third ARP and the fourth ARP according to the fourth information. The second device obtains fifth information, and the fifth information includes: the arrival angle information of the signal sent by the first device to the second device, and / or the departure angle information of the signal sent by the second device to the first device. The second device determines the distance difference information according to the distance information and the fifth information.
[0048] The distance difference information corresponding to the channel of the third signal and the channel of the fourth signal is caused by the distance between the third ARP and the fourth ARP, and there may be a certain geometric relationship between the distance between the third ARP and the fourth ARP and the distance difference. Since the second device can determine the distance difference information in combination with the fifth information, the accuracy of the distance difference information can be improved, and then the accuracy of the second measurement result can be improved, thereby further improving the positioning accuracy.
[0049] In a possible implementation, the information used to indicate the position of the third ARP and the position of the fourth ARP includes at least one of the following: position information of the third ARP and the position information of the fourth ARP; relative position information of the third ARP and the fourth ARP; distance information between the third ARP and the fourth ARP; or, information used to indicate the distance between the fourth antenna panel and the third antenna panel, the third ARP corresponds to the third antenna panel of the second device, and the fourth ARP corresponds to the fourth antenna panel of the second device. The fourth information may include information associated with the third ARP and the fourth ARP, and may also include information associated with the third antenna panel and the fourth antenna panel, and the solution is more flexible.
[0050] In one possible embodiment, the information for indicating the distance between the fourth antenna panel and the third antenna panel includes: position information of the third antenna panel and position information of the fourth antenna panel; relative position information between the third antenna panel and the fourth antenna panel; distance information between the fourth antenna panel and the third antenna panel; orientation information of the third antenna panel; orientation information of the fourth antenna panel; relative orientation information of the third antenna panel and the fourth antenna panel; contour information of the third antenna panel; or, at least one item of contour information of the fourth antenna panel.
[0051] The second device can calculate the distance between the third ARP and the fourth ARP based on the information associated with the antenna panels (such as the third antenna panel and the fourth antenna panel), such as the position, orientation or contour, and then determine the second measurement result based on the distance information. These solutions can reduce the complexity of the second device obtaining the fourth information and reduce the requirements for the second device.
[0052] In a possible embodiment, the contour information of the third antenna panel includes: at least one of shape information of the third antenna panel, size information of the third antenna panel, distance information between two antenna arrays of the third antenna panel, or distance information between the antenna array of the third antenna panel and the edge of the third antenna panel.
[0053] In a possible embodiment, the contour information of the fourth antenna panel includes: shape information of the fourth antenna panel, size information of the fourth antenna panel, distance information between two antenna arrays of the fourth antenna panel, or at least one of distance information between the antenna array of the fourth antenna panel and the edge of the fourth antenna panel.
[0054] In a possible implementation, the distance information between the third antenna panel and the fourth antenna panel is determined according to at least one of the following: the distance between the third ARP and the fourth ARP; the distance between the edge of the third antenna panel and the edge of the fourth antenna panel; the distance between the antenna array on the edge of the third antenna panel and the antenna array on the edge of the fourth antenna panel; the distance between the antenna array on the edge of the third antenna panel and the edge of the third antenna panel; the distance between the antenna array on the edge of the fourth antenna panel and the edge of the fourth antenna panel; the spacing between the antenna arrays on the third antenna panel; the spacing between the antenna arrays on the fourth antenna panel; the side length of the third antenna panel; or the side length of the fourth antenna panel. This implementation provides multiple possible implementations for the second device to determine the distance between the third ARP and the fourth ARP, thereby improving the flexibility of the solution.
[0055] In a possible implementation, the time domain resources occupied by the third signal are the same as the time domain resources occupied by the fourth signal, so that the two signals can be guaranteed to experience the channel at the same time, so that the second measurement result determined based on the two signals can be more accurate.
[0056] In a possible implementation manner, the frequency domain resources occupied by the third signal and the frequency domain resources occupied by the fourth signal are continuous frequency domain resources within a preset frequency band. In this way, it can be more compatible with existing technologies.
[0057] In a possible implementation, the second device sends the second measurement result. The second device may send the second measurement result to another device, such as a positioning management device, so that the positioning management device performs positioning.
[0058] In a possible implementation, the second device sends a second indication message, and the second indication message indicates that the second measurement result is determined based on the fourth information. The second device may send the second indication message to the positioning management device. After the positioning management device obtains the second indication message, it may determine that the second measurement result is determined based on at least one signal or channel estimation result after antenna panel spacing compensation. In this way, the positioning management device may determine that the second measurement result has a higher accuracy or reliability based on the second indication message, and then when using the second measurement result for positioning (such as positioning the first device), positioning may be based on a measurement result with higher accuracy or reliability, or a larger weight may be set for a measurement result with higher accuracy or reliability, thereby improving positioning accuracy.
[0059] In a fifth aspect, an embodiment of the present application provides a positioning method, which can be applicable to a positioning management device. The positioning management device can be, for example, a positioning management device or a unit, module or chip (system) inside the positioning management device.
[0060] The positioning management device receives the second measurement result. The second measurement result is determined based on the fourth information, the third signal and the fourth signal, the third signal is received through the third ARP of the second device, the fourth signal is received through the fourth ARP of the second device, the fourth ARP is different from the third ARP, and the fourth information includes information for indicating the location of the third ARP and the location of the fourth ARP. The positioning management device performs positioning according to the first measurement result.
[0061] Since the second measurement result is determined in combination with the fourth information, the third signal and the fourth signal, and the fourth information includes information for indicating the location of the third ARP and the location of the fourth ARP, the accuracy of the second measurement result is higher, and then the positioning management device can improve the positioning accuracy by performing positioning based on the second measurement result.
[0062] In a possible implementation, the positioning management device receives second indication information. The second indication information indicates that the second measurement result is determined according to fourth information. For related introduction, please refer to the related content of the fourth aspect above, which will not be described in detail.
[0063] In a sixth aspect, a communication device is provided, which may be the aforementioned first device, second device or positioning management device. The communication device may include a communication unit and a processing unit to perform any aspect of the above-mentioned first to fifth aspects, or to perform any possible implementation of the first to fifth aspects. The communication unit is used to perform functions related to sending and receiving. Optionally, the communication unit includes a receiving unit and a sending unit. In one design, the communication device is a communication chip, the processing unit may be one or more processors or processor cores, and the communication unit may be an input and output circuit or port of the communication chip.
[0064] In another design, the communication unit may be a transmitter and a receiver, or the communication unit may be a transmitter and a receiver.
[0065] Optionally, the communication device also includes various modules that can be used to execute any aspect of the first to fifth aspects above, or execute any possible implementation of the first to fifth aspects.
[0066] In the seventh aspect, a communication device is provided, which may be the aforementioned first device, second device or positioning management device. The communication device may include a processor and a memory to execute any one of the above-mentioned first to fifth aspects, or execute any possible implementation of the first to fifth aspects. Optionally, it also includes a transceiver, the memory is used to store a computer program or instruction, and the processor is used to call and run the computer program or instruction from the memory, and when the processor executes the computer program or instruction in the memory, the communication device executes any one of the above-mentioned first to fifth aspects, or executes any possible implementation of the first to fifth aspects.
[0067] Optionally, there are one or more processors and one or more memories.
[0068] Optionally, the memory may be integrated with the processor, or the memory may be provided separately from the processor.
[0069] Optionally, the transceiver may include a transmitter (transmitter) and a receiver (receiver).
[0070] In an eighth aspect, a communication device is provided, which may be the aforementioned first device, the second device, or the positioning management device. The communication device may include a processor to perform any aspect of the aforementioned first to fifth aspects, or to perform any possible implementation of the first to fifth aspects. The processor is coupled to a memory. Optionally, the communication device also includes a memory. Optionally, the communication device also includes a communication interface, and the processor is coupled to the communication interface.
[0071] In one implementation, when the communication device is the first device, the second device or the positioning management device, the communication interface may be a transceiver, or an input / output interface. Optionally, the transceiver may be a transceiver circuit. Optionally, the input / output interface may be an input / output circuit.
[0072] In another implementation, when the communication device is a chip or a chip system, the communication interface may be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip or the chip system, etc. The processor may also be embodied as a processing circuit or a logic circuit.
[0073] In a ninth aspect, a system is provided, the system comprising the first device mentioned above.
[0074] In one possible implementation, the system may further include one or more second devices. In another possible implementation, the system may further include a positioning management device.
[0075] When the tenth computer program is executed, the computer is caused to execute any one of the first to fifth aspects described above, or execute any possible implementation of the first to fifth aspects.
[0076] In the eleventh aspect, a computer-readable storage medium is provided, which stores a computer program (also referred to as code, or instructions). When the computer program is run on a computer, the computer executes any one of the first to fifth aspects above, or executes any possible implementation of the first to fifth aspects.
[0077] In the twelfth aspect, a chip system is provided, which may include a processor. The processor is coupled to a memory and may be used to perform any of the first to fifth aspects described above, or to perform any possible implementation of the first to fifth aspects. Optionally, the chip system also includes a memory. The memory is used to store a computer program (also referred to as code, or instruction). The processor is used to call and run a computer program from the memory, so that a device equipped with the chip system performs any of the first to fifth aspects described above, or performs any possible implementation of the first to fifth aspects.
[0078] In a thirteenth aspect, a processing device is provided, comprising: an interface circuit and a processing circuit. The interface circuit may include an input circuit and an output circuit. The processing circuit is used to receive a signal through the input circuit and transmit a signal through the output circuit, so that any aspect of the first to fifth aspects above, or any possible implementation of the first to fifth aspects is implemented.
[0079] In the specific implementation process, the above-mentioned processing device can be a chip, the input circuit can be an input pin, the output circuit can be an output pin, and the processing circuit can be a transistor, a gate circuit, a trigger, and various logic circuits. The input signal received by the input circuit can be, for example, but not limited to, received and input by a receiver, and the signal output by the output circuit can be, for example, but not limited to, output to a transmitter and transmitted by the transmitter, and the input circuit and the output circuit can be the same circuit, which is used as an input circuit and an output circuit at different times. This application does not limit the specific implementation of the processor and various circuits.
[0080] In one implementation, when the communication device is the first device, the second device, or the positioning management device, the interface circuit may be a radio frequency processing chip in the first device, the second device, or the positioning management device, and the processing circuit may be a baseband processing chip in the first device, the second device, or the positioning management device.
[0081] In another implementation, the communication device may be a part of the first device, the second device or the positioning management device, such as an integrated circuit product such as a system chip or a communication chip. The interface circuit may be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip or the chip system. The processing circuit may be a logic circuit on the chip. BRIEF DESCRIPTION OF THE DRAWINGS
[0082] Figure 1 A schematic diagram of the architecture of a communication system provided in an embodiment of the present application;
[0083] Figure 2A A schematic diagram of the architecture of another communication system provided in an embodiment of the present application;
[0084] Figure 2B A schematic diagram of another communication system architecture applicable to the embodiments of the present application;
[0085] Figure 2C A schematic diagram of another communication system architecture applicable to the embodiments of the present application;
[0086] Figure 2D A schematic diagram of another communication system architecture applicable to the embodiments of the present application;
[0087] Figure 3 A schematic diagram of another communication system architecture applicable to the embodiments of the present application;
[0088] Figure 4 A flowchart of a positioning method provided in an embodiment of the present application;
[0089] Figure 5 A flow chart of a method for determining a measurement result provided in an embodiment of the present application;
[0090] Fig. 6A A possible structural schematic diagram of multiple antenna panels on a second device provided in an embodiment of the present application;
[0091] Figure 6B A schematic diagram of another possible structure of multiple antenna panels on a second device provided in an embodiment of the present application;
[0092] Figure 7 A schematic diagram of another communication system architecture provided in an embodiment of the present application;
[0093] Figure 8 A flowchart of a positioning method provided in an embodiment of the present application;
[0094] Fig. 9 A flow chart of a method for determining a measurement result provided in an embodiment of the present application;
[0095] Fig.10 A schematic diagram of the structure of a communication device provided in an embodiment of the present application;
[0096] Fig.11 A schematic diagram of the structure of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION
[0097] Figure 1 The schematic diagram of the architecture of a communication system 1000 applicable to the embodiment of the present application is exemplarily shown. Figure 1 As shown, the communication system includes a wireless access network 100 and a core network 200. Optionally, the communication system 1000 may also include the Internet 300. The wireless access network 100 may include at least one wireless access network device (such as Figure 1 110a and 110b), and may also include at least one terminal device (such as Figure 1 120a-120j in the figure). The terminal device is connected to the wireless access network device by wireless means, and the wireless access network device is connected to the core network by wireless or wired means. The core network device and the wireless access network device can be independent and different physical devices, or the functions of the core network device and the logical functions of the wireless access network device can be integrated on the same physical device, or part of the functions of the core network device and part of the functions of the wireless access network device can be integrated on one physical device. Terminal devices and terminal devices, as well as wireless access network devices and wireless access network devices can be connected to each other by wired or wireless means. Figure 1 This is just a schematic diagram. The communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices. Figure 1 Not drawn in.
[0098] The network devices involved in the embodiments of the present application include, for example, radio access network (RAN) devices. The radio access network devices may be base stations, evolved NodeBs (eNodeBs), transmission reception points (TRPs), transmission nodes (TPs), next generation NodeBs (gNBs) in fifth generation (5G) mobile communication systems, next generation NodeBs in sixth generation (6G) mobile communication systems, base stations in future mobile communication systems, or access nodes in WiFi systems, etc.; they may also be modules or units that perform some functions of a base station, for example, they may be centralized units (CUs) or distributed units (DUs). The CU here completes the functions of the radio resource control protocol and packet data convergence protocol (PDCP) of the base station, and can also complete the function of the service data adaptation protocol (SDAP); the DU completes the functions of the radio link control layer and medium access control (MAC) layer of the base station, and can also complete the functions of part or all of the physical layer. For the specific description of the above-mentioned protocol layers, please refer to the relevant technical specifications of the 3rd Generation Partnership Project (3GPP).
[0099] The wireless access network device may be a macro base station (such as Figure 1 110a), or a micro base station or an indoor station (such as Figure 1 110b), may also be a relay node or a donor node, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the wireless access network device. For ease of description, the following description takes a base station as an example of a wireless access network device.
[0100] Terminal devices may also be referred to as terminal devices, user equipment (UE), mobile stations, mobile terminal devices, etc. Terminal devices can be widely used in various scenarios, for example, device-to-device (D2D), vehicle to everything (V2X) communication, machine-type communication (MTC), Internet of Things (IOT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. Terminal devices may be mobile phones, tablet computers, computers with wireless transceiver functions, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, sensors, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal devices.
[0101] The above-mentioned terminal device can establish a connection with the operator network through the interface provided by the operator network (such as N1, etc.), and use the data and / or voice services provided by the operator network. The terminal device can also access the domain name system (domain name system, DNS) through the operator network, use the operator services deployed on the DNS, and / or services provided by a third party. Among them, the above-mentioned third party can be a service provider other than the operator network and the terminal device, and can provide other data and / or voice services to the terminal device. Among them, the specific form of the above-mentioned third party can be determined according to the actual application scenario, and is not limited here.
[0102] The terminal device may also be referred to as a terminal device, user equipment (UE), mobile station, mobile terminal device, etc. The terminal device can be widely used in various scenarios, for example, device-to-device (D2D), vehicle to everything (V2X) communication, machine-type communication (MTC), Internet of Things (IOT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, a drone, a helicopter, an airplane, a ship, a robot, a robotic arm, a smart home device, a road side unit (RSU), etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal device.
[0103] Base stations and terminal devices can be fixed or mobile. Base stations and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on aircraft, balloons, and artificial satellites in the air. The embodiments of this application do not limit the application scenarios of base stations and terminal devices.
[0104] The roles of base stations and terminal devices can be relative, for example, Figure 1 The helicopter or drone 120i in the figure can be configured as a mobile base station. For the terminal devices 120j that access the wireless access network 100 through 120i, the terminal device 120i is a base station; but for the base station 110a, 120i is a terminal device, that is, 110a and 120i communicate through the wireless air interface protocol. Of course, 110a and 120i can also communicate through the interface protocol between base stations. In this case, relative to 110a, 120i is also a base station. Therefore, base stations and terminal devices can be collectively referred to as communication devices. Figure 1 110a and 110b in the figure may be referred to as communication devices having base station functions. Figure 1 120a-120j in the figure can be called communication devices with terminal equipment functions.
[0105] Base stations and terminal devices, base stations and base stations, and terminal devices and terminal devices can communicate through authorized spectrum, unauthorized spectrum, or both; they can communicate through spectrum below 6 gigahertz (GHz), spectrum above 6 GHz, or spectrum below 6 GHz and spectrum above 6 GHz. The embodiments of the present application do not limit the spectrum resources used for wireless communication.
[0106] In the embodiments of the present application, the functions of the base station may also be performed by a module (such as a chip) in the base station, or by a control subsystem including the base station functions. The control subsystem including the base station functions here may be a control center in the above-mentioned application scenarios such as smart grid, industrial control, smart transportation, smart city, etc. The functions of the terminal device may also be performed by a module (such as a chip or a modem) in the terminal device, or by a device including the terminal device functions.
[0107] In this application, the base station sends a downlink signal or downlink information to the terminal device, and the downlink information is carried on the downlink channel; the terminal device sends an uplink signal or uplink information to the base station, and the uplink information is carried on the uplink channel. In order to communicate with the base station, the terminal device needs to establish a wireless connection with the cell controlled by the base station. The cell with which the terminal device has established a wireless connection is called the service cell of the terminal device. When the terminal device communicates with the service cell, it will also be interfered by signals from neighboring cells.
[0108] The core network involved in the embodiments of the present application may include network equipment that processes and forwards user signaling and data. For example, it includes access and mobility management function (AMF), session management function (SMF), user plane gateway, positioning management equipment and other core network equipment. Among them, the user plane gateway can be a server with functions such as mobility management, routing, and forwarding of user plane data, which is generally located on the network side, such as a serving gateway (SGW) or a packet data network gateway (PGW) or a user plane network element function entity (UPF). AMF and SMF are equivalent to the mobility management entity (MME) in the long term evolution (LTE) system. AMF is mainly responsible for access, and SMF is mainly responsible for session management. Of course, other network elements can also be included in the core network, which are not listed here one by one.
[0109] The positioning management device has a positioning function. The positioning management device involved in the embodiments of the present application may include a positioning management function (LMF) or a positioning management component (LMC), or may be a local location management function (LLMF) located in a network device, or a positioning server, which is not limited in the embodiments of the present application. For the convenience of description, the following embodiments are all introduced by taking the positioning management device as LMF as an example.
[0110] based on Figure 1 The content shown, Figure 2AThe following is a schematic diagram of a communication system architecture applicable to the embodiments of the present application, and the communication system is illustrated by taking the positioning architecture in LTE and NR Rel-16 as an example. Figure 2A As shown, the network elements / modules involved mainly include the next generation radio access network (NGRAN), terminal equipment and core network.
[0111] The core network includes location management function (LMF), access and mobility management function (AMF), service location protocol (SLP), and evolved serving mobile location center (E-SMLC). The location server, namely location management function (LMF), is connected to AMF, and LMF and AMF are connected through NLs interface. UE communicates with serving base station through Uu link; Ng-eNB is LTE base station, gNB is NR base station, and base stations communicate through Xn interface; base station and AMF communicate through NG-C interface, and AMF (Access and Mobility Management Function) is equivalent to the router for communication between gNB and LMF; LMF realizes UE location estimation, and AMF and LMF communicate through NLs interface. LMF is responsible for supporting different types of location services related to terminal devices, including positioning of terminal devices and transmitting auxiliary data to terminal devices. LMF can calculate the location of terminal devices based on the measurement results of other network elements. AMF can receive location service requests related to terminal devices from the 5th generation core network location services (5GCLCS) entity, or AMF itself can start some location services on behalf of specific terminal devices and forward the location service request to LMF. After obtaining the location information returned by the terminal device, the relevant location information is returned to the 5GC LCS entity.
[0112] NG RAN may include next generation node B (gNB), next generation evolved node B (ng-eNB), etc. gNB and ng-eNB are connected through the Xn interface, and LMF is connected to ng-eNB / gNB through the NG-C interface.
[0113] One or more network devices on the NG RAN side configure resources for sending reference signals and send reference signals to the terminal device. The terminal device measures downlink signals such as the reference signal and feeds back the measurement results to the LMF to support positioning. It should be understood that the reference signal is used for positioning and may also be referred to as a positioning reference signal. For example, the positioning reference signal may be a PRS, a cell common reference signal (CRS), a channel state information (CSI)-RS, etc. In one possible implementation, the PRS resources may be configured at the cell level, that is, PRS resources are configured for each cell separately. After the terminal device re-establishes a radio resource control (RRC) connection with the target cell, the base station of the target cell may configure the PRS resources for the target cell, and the terminal device obtains the PRS resources configured for the target cell to receive and measure the PRS on the PRS resources.
[0114] The communication method provided in the embodiment of the present application can be applied to various communication systems, for example: LTE system, fifth generation (5th generation, 5G) system, such as NR, and next generation communication system, such as 6G system, etc. Of course, the technical solution of the embodiment of the present application can also be applied to other communication systems, as long as the communication system has a positioning demand for terminal equipment. In addition, the communication system can also be applied to future-oriented communication technology. The system described in the embodiment of the present application is to more clearly illustrate the technical solution of the embodiment of the present application, and does not constitute a limitation on the technical solution provided in the embodiment of the present application. It is known to those skilled in the art that with the evolution of the network architecture, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.
[0115] Figure 2BThe network architecture of another communication system applicable to the embodiment of the present application is shown, and the communication system includes a core network, NG-RAN and a terminal device. The core network includes LMF, AMF, secure user plane location (SUPL) location platform (SUPL location platform, SLP) and enhanced serving mobile location center (E-SMLC) and other network elements / modules, and NG RAN includes gNB, ng-eNB and other network elements / modules. The specific functions of LMF, AMF, SLP, E-SMLC, gNB and ng-eNB and other network elements / modules, and the connection relationship between each network element / module can be found in the above text. Figure 2A The introduction of the relevant parts will not be repeated here.
[0116] and Figure 2A The difference is, Figure 2B In the network architecture shown, LMC is added to NG-RAN. The specific deployment method of LMC is to set it inside the base station, such as in gNB or ng-ENB. In this network architecture, LMC is a function inside the base station, so there is no need to introduce a new interface. LMC can assume part of the functions of LMF. Under this architecture, gNB can not report the measurement results of the signal used for positioning to the LMF of the core network, thereby saving signaling overhead and reducing positioning delay.
[0117] Figure 2C FIG. 4 shows another network architecture of a communication system to which the embodiment of the present application is applicable. Figure 2C As shown in Figure 1, the communication system also includes the core network, NG-RAN and terminal equipment. Figure 2B The difference is, Figure 2C The LMC in the network architecture shown is an independent logical node in NG-RAN and is connected to the base station through a new interface, e.g. Figure 2C In the NB-CU, LMC is connected to gNB-CU through interface Itf.
[0118] Figure 2D FIG. 4 shows another network architecture of a communication system to which the embodiment of the present application is applicable. Figure 2D As shown in Figure 1, the communication system also includes the core network, NG-RAN and terminal equipment. LMC is an independent logical node in NG-RAN. Figure 2C The difference is that LMC can Figure 2D Connect to multiple base stations simultaneously via new interfaces. Figure 2D Taking the example that the LMC is connected to two base stations at the same time, in specific implementation, the LMC can also be connected to more base stations.
[0119] It should be understood that the above Figure 2A , Figure 2B , Figure 2C and Figure 2D These are several exemplary descriptions of communication systems to which the embodiments of the present application are applicable, and do not specifically limit the types, quantities, connection methods, etc. of network elements included in the communication systems to which the present application is applicable. Figure 2A , Figure 2B , Figure 2C and Figure 2D The network elements / modules indicated by the dotted lines are not indispensable but optional, for example, E-SMLC or SLP are not indispensable; or, the network elements / modules indicated by the dotted lines are in another form of existence, for example, gNB or ng-eNB are also called transmission reception point (TRP) in some embodiments, and the terminal device is called a SUPL enabled terminal (SET) in some embodiments, where SUPL is the abbreviation of secure user plane location (SUPL).
[0120] The following is an introduction to the nouns and terms involved in the embodiments of the present application.
[0121] (1) Signal used for positioning.
[0122] The first signal, second signal, third signal, and fourth signal involved in the embodiments of the present application can be understood as signals that can be used for positioning. The first signal, second signal, third signal, and fourth signal in the embodiments of the present application can also be referred to as positioning signals. For the purpose of distinction, for example, the first signal can be referred to as a first positioning signal, and the second signal can be referred to as a second positioning signal.
[0123] In the embodiment of the present application, one or more of the first signal, the second signal, the third signal and the fourth signal may be a positioning reference signal (PRS), a sounding reference signal (SRS), a channel state information reference signal (CSI-RS), a demodulation reference signal (DMRS), a phase tracking reference signal (PTRS), a sidelink positioning reference signal (SL-PRS) and a synchronization signal-physical sidelink broadcast channel block (SSB). One or more of the following.
[0124] (2) Frequency band.
[0125] According to certain rules, 3GPP divides the entire wireless spectrum from low to high into frequency bands corresponding to a certain range of spectrum. The frequency band in the embodiment of the present application can also be replaced by band. Table 1 exemplifies several examples of band divisions in frequency range 1 (FR-1). In the FR-1 range, the maximum bandwidth of a single carrier is 100 megahertz (MHz).
[0126] Table 1 Examples of several band divisions under FR-1
[0127] NR frequency band Uplink frequency band Downlink frequency band n1 1920 mega hertz (MHz)-1980MHz 2110MHz-2170MHz n2 1850MHz-1910MHz 1930MHz-1990MHz n3 1710MHz-1785MHz 1805MHz-1880MHz n5 824MHz-849MHz 869MHz-894MHz n7 2500MHz-2570MHz 2620MHz-2690MHz
[0128] (3) PFL.
[0129] The signal used for positioning in the embodiment of the present application may correspond to a PFL. PFL may also be understood as the carrier frequency of a signal. For example, a second device sends a first signal and a second signal to a first device. The first signal and the second signal may be, for example, downlink signals. The first signal may correspond to a first PFL, and the second signal may correspond to a second PFL. The first PFL is different from the second PFL. The first PFL and the second PFL may be PFLs to which carrier aggregation is applied. For example, the first PFL and the second PFL may be carriers corresponding to different cells participating in carrier aggregation.
[0130] (4) CC.
[0131] The signal used for positioning in the embodiment of the present application may correspond to a CC. CC can also be understood as the carrier frequency of the signal. For example, the first device sends a third signal and a fourth signal to the second device. The third signal and the fourth signal may be, for example, uplink signals. The third signal may correspond to the first CC, and the fourth signal may correspond to the second CC, and the first CC is different from the second CC. The first CC and the second CC may be CCs to which carrier aggregation is applied. For example, the first CC and the second CC may be carriers corresponding to different cells participating in carrier aggregation.
[0132] (5)Carrier aggregation.
[0133] In order to provide higher service rates, the 3rd Generation Partnership Project (3GPP) proposed a downlink rate requirement of 1 Gigabit per second (Gbit / s) in the Long Term Evolution Advanced (LTE-Advanced) stage. However, due to factors such as the shortage of wireless spectrum resources, the spectrum resources owned by operators may be non-continuous, and each single frequency band is difficult to meet the bandwidth requirements of LTE-Advanced. For the above reasons, 3GPP introduced the concept of carrier aggregation (CA) in Release 10, which aggregates multiple continuous or non-continuous carriers into a larger bandwidth (such as a maximum of 100 megahertz (MHz)) to meet the requirements of 3GPP.
[0134] Carrier aggregation aggregates multiple continuous or discontinuous carriers to form a larger bandwidth, which can improve the uplink and downlink peak rates or improve measurement accuracy. The sender aggregates and sends signals on multiple continuous or discontinuous carriers (such as multiple PFLs or multiple CCs), and the receiver receives the aggregated signals on the corresponding multiple continuous or discontinuous carriers (such as multiple PFLs or multiple CCs), so that the current communication bandwidth is the bandwidth after the aggregation of multiple carriers, which increases the communication bandwidth and can meet higher data rate or measurement requirements.
[0135] For example, the second device sends two signals to the first device on the first PFL and the second PFL. The first device can aggregate the first PFL and the second PFL into a larger bandwidth, and obtain a measurement result based on multiple signals received on the first PFL and the second PFL. Since the measurement result is obtained based on signals on multiple carrier frequencies (such as multiple PFLs), the aggregate bandwidth of multiple PFLs is larger, and since the signal bandwidth is inversely correlated with the estimated error of the measurement result, the error of the measurement result can be smaller, so the accuracy can be higher.
[0136] For another example, the first device sends two signals to the second device on the first CC and the second CC. The second device can aggregate the first CC and the second CC into a larger bandwidth, and obtain a measurement result based on the multiple signals received on the first CC and the second CC. Since the measurement result is obtained based on signals on multiple carrier frequencies (such as multiple CCs), the aggregate bandwidth of multiple CCs is larger, and since the signal bandwidth is inversely correlated with the estimated error of the measurement result, the error of the measurement result can be smaller, so that the accuracy can be higher.
[0137] (6)ARP.
[0138] ARP (such as the first ARP and the second ARP involved in the embodiment of the present application) can be understood as a physical point on the antenna panel corresponding to the ARP for antenna calibration reference. ARP can be a point on the antenna panel, or a point outside the antenna panel, for example, ARP can be the center point of the antenna panel, or the location of a certain antenna element on the antenna panel, etc.
[0139] The error of the measurement result (such as TOA, etc.) is inversely correlated with the bandwidth of the signal used for positioning. For example, the larger the signal bandwidth used for positioning, the higher the estimated accuracy of the measurement result. For another example, the smaller the signal bandwidth used for positioning, the lower the estimated accuracy of the measurement result. In order to further improve the measurement result, multiple reference signals can be sent through a carrier aggregation scheme, that is, the receiving end can measure a measurement result based on multiple reference signals. Since the measurement result is obtained based on multiple reference signals, and the bandwidth after the multiple reference signals are aggregated is larger, the estimated accuracy of the measurement result can be improved.
[0140] Figure 3 A schematic diagram of a communication system architecture is shown exemplarily. Figure 3 In the example, the second device sends a signal to the first device. Figure 3As shown, the second device may include multiple antenna panels, and one antenna panel may correspond to one ARP. The second device may send a first signal through a first ARP, and the second device may send a second signal through a second ARP. The first signal and the second signal may also be understood as signals on two aggregated carrier frequencies (or two PFLs). The first device may measure a measurement result based on the first signal and the second signal. However, the first ARP and the second ARP on the second device may not be co-antenna panels, that is, the antenna panel corresponding to the first ARP and the antenna panel corresponding to the second ARP may not be the same antenna panel. Due to hardware implementation issues, the edge of a panel or the spacing between panels is usually greater than the spacing between antenna units within the panel, resulting in a situation where multiple panels are not co-located (that is, the channels between different panels on the user-to-base station side are different).
[0141] See also Figure 3 Due to the existence of the distance Δd between the first ARP and the second ARP, there is a distance difference ds between the propagation distances of the first signal and the second signal (for example, ds=Δd*cosθ), which results in different channels experienced by the first signal and the second signal. If the antenna panels corresponding to the first ARP and the second ARP are regarded as the same antenna panel, and the non-co-location phenomenon of the antenna panels corresponding to the first ARP and the second ARP is not considered, that is, the problem that the channels experienced by the first signal and the second signal are different are ignored, then the measurement results obtained based on the multiple signals will introduce errors, which may reduce the accuracy of the measurement results and reduce the positioning accuracy.
[0142] The solution provided in the embodiment of the present application is also applicable to the scenario where the first device sends a signal to the second device. In this scenario, the first device sends multiple signals (such as the third signal and the fourth signal), and the second device receives the multiple signals respectively through multiple ARPs. When the second device obtains a measurement result based on the multiple signals received, the existence of the spacing between the multiple ARPs will cause the multiple signals sent by the first device to experience different channels, which in turn reduces the accuracy of the measurement result. It can be seen that in this scenario, there will also be the same as the above Figure 3 Similar problem in the scenario shown.
[0143] Based on the above problems, an embodiment of the present application provides a possible implementation method. In this implementation method, when determining the measurement result, the first device or the second device can determine the measurement result based on the distance between multiple ARPs that transmit multiple signals, thereby improving the measurement accuracy.
[0144] based on Figure 1 , Figure 2A , Figure 2B , Figure 2C , Figure 2D , Figure 3 The embodiments shown and the other contents described above, Figure 4 A flowchart of a positioning method provided in an embodiment of the present application is exemplified. Figure 4 The embodiment shown is described by taking the second device sending a signal to the first device as an example. Figure 4 The proposed solution can be considered as Figure 3 A possible embodiment in the communication scenario provided. The solution provided in the embodiment of the present application can also be applied to the scenario where the first device sends a signal to the second device. The relevant content of this scenario will not be introduced here, and will be introduced in detail in the subsequent content.
[0145] For easy understanding, Figure 4 The first device, the second device and the positioning management device are used to introduce the interaction between them. Figure 1 , Figure 2A , Figure 2B , Figure 2C or Figure 2D The second device in the embodiment of the present application may be the aforementioned Figure 1 , Figure 2A , Figure 2B , Figure 2C or Figure 2D The positioning management device in the embodiment of the present application can be the aforementioned Figure 1 , Figure 2A , Figure 2B , Figure 2C or Figure 2D The location management device involved or the chip (system) in the location management device. The location management device may include one or more of LMF, LMC or LLMF.
[0146] like Figure 4 As shown, the method may include the following steps 401, 402 and 404. The method may also include steps 403, 405 and 406. Figure 4 Make an introduction.
[0147] Step 401: The second device sends a first signal via a first ARP.
[0148] Correspondingly, the first device receives the first signal.
[0149] Step 402: The second device sends a second signal via a second ARP.
[0150] Correspondingly, the first device receives the second signal. The second ARP is different from the first ARP.
[0151] The first signal and the second signal may be PRS, etc. For related examples, please refer to the above description and will not be repeated here.
[0152] In a possible implementation, the second device or the positioning management device may send information about resources of the first signal and the second signal to the first device, so that the first device receives the first signal and the second signal on these resources. The resources of the first signal include time domain resources and / or frequency domain resources. The resources of the second signal include time domain resources and / or frequency domain resources.
[0153] For example, the first signal occupies the first time domain resource, and the second signal occupies the second time domain resource. The first time domain resource and the second time domain resource can be the same (that is, the first time domain resource and the second time domain resource completely overlap), so that the two signals can be guaranteed to experience the channel at the same time, so that the first measurement result determined based on the two signals can be more accurate. The first time domain resource and the second time domain resource can also be different (for example, the first time domain resource and the second time domain resource partially overlap or do not overlap at all).
[0154] For another example, the first signal occupies the first frequency domain resource, and the second signal occupies the second frequency domain resource. The first frequency domain resource and the second frequency domain resource can be continuous frequency domain resources within a frequency band, so that it can be more compatible with existing technologies. For example, the frequency band range of band79 is 4400MHz-5000MHz. Assume that there are two PFLs (such as PFL#1 and PFL#2) in the band, corresponding to 100MHz bandwidth respectively. If the end frequency domain position of PFL#1 is continuous with the start frequency domain position of PFL#2, PFL#1 and PFL#2 can be considered as continuous frequency domain resources in the same band. For example, PFL#1 corresponds to 4400MHz-4499MHz, PFL#2 corresponds to 4500MHz-4599MHz, and PFL#1 and PFL#2 are continuous frequency domain resources.
[0155] The first frequency domain resource and the second frequency domain resource may also be frequency domain resources in different frequency bands (for example, the first frequency domain resource is located in the first frequency band, the second frequency domain resource is located in the second frequency band, the first frequency band and the second frequency band are different, for example, the first frequency band is band#n3, and the second frequency band is band#n4). Alternatively, the first frequency domain resource and the second frequency domain resource may also be two discontinuous frequency domain resources in the same frequency band.
[0156] In a possible implementation, the first frequency domain resource may be a first PFL, and the second frequency domain resource may be a second PFL. The first PFL and the second PFL may be understood as aggregated PFLs. The first signal and the second signal may be sent by aggregation. For example, the first signal corresponds to the first PFL, the second signal corresponds to the second PFL, and the first PFL and the second PFL are different. The second device sends the first signal on the first PFL through the first ARP, and the second device sends the second signal on the second PFL through the second ARP.
[0157] Step 403: the first device obtains first information.
[0158] The first information includes information for indicating the location of the first ARP and the location of the second ARP. The first information, the first signal and the second signal are used to determine a first measurement result, and the first measurement result is used for positioning.
[0159] In step 403, the first device may obtain the first information in a variety of ways. In one possible implementation, the second device may send the first information to the positioning management device, and the positioning management device may send the received first information to the first device. For example, the positioning management device may send the first information through a positioning request and information exchange signaling. In another possible implementation, the second device may send the first information to the first device.
[0160] Step 403 is an optional step and may not be performed. For example, the first information may be pre-configured in the first device. For another example, the first information may be pre-configured in the first device by the second device or the positioning management device. For another example, the first information may be a preset value configured based on some historical experience. For another example, the first information may be the first information obtained historically.
[0161] Step 404: The first device determines a first measurement result according to the first information, the first signal, and the second signal.
[0162] The first measurement result is used to locate the first device. In an embodiment of the present application, the first device may compensate the first signal and / or the second signal based on the first information, and then determine the first measurement result. The first device may also compensate the channel estimation result of the first signal and / or the channel estimation result of the second signal based on the first information, and then determine the first measurement result. In this way, the accuracy of the first measurement result can be improved.
[0163] There are many schemes for the first device to determine the first measurement result. For example, the first device can splice the first signal and the second signal as a signal with a larger bandwidth, and then measure the signal with the larger bandwidth to obtain the first measurement result. It can also be understood that the first measurement result is determined based on the signal obtained by splicing the first signal and the second signal. Since the signal bandwidth is inversely correlated with the estimated error of the measurement result, this scheme can improve the estimation accuracy of the first measurement result, thereby improving the positioning accuracy.
[0164] In another possible implementation, the first device may concatenate the channel estimation result of the first signal and the channel estimation result of the second signal, and then obtain a channel estimation result corresponding to the signal with a larger bandwidth (for the purpose of distinction, it may be referred to as a third channel estimation result). It can also be understood that the first measurement result is determined based on the third channel estimation result. Since the signal bandwidth is inversely correlated with the estimation error of the measurement result, this solution can improve the estimation accuracy of the first measurement result, and then improve the positioning accuracy.
[0165] Step 405: The first device sends a first measurement result.
[0166] Correspondingly, the positioning management device receives the first measurement result.
[0167] Step 406: The first device sends first indication information.
[0168] Correspondingly, the positioning management device receives the first indication information.
[0169] The first indication information indicates that the first measurement result is determined based on the first information. In one possible implementation, after the positioning management device obtains the first indication information, it can determine that the first measurement result is determined based on at least one signal or channel estimation result after antenna panel spacing compensation. In this way, the positioning management device can determine that the accuracy or reliability of the first measurement result is high based on the first indication information, and then when positioning the first device, it can be based on the measurement result with higher accuracy or reliability. Positioning, or a larger weight can be set for the measurement result with higher accuracy or reliability, thereby improving the positioning accuracy.
[0170] Step 405 and step 406 are optional steps, and step 405 and / or step 406 may not be performed. In the embodiment of the present application, the first device may also send the first measurement result (or the first measurement result and the first indication information) to the second device, the second device may determine the location of the first device based on the measurement result, and the second device may also report the measurement result to the positioning management device. Figure 4 The example in which the first device sends the first measurement result and the first indication information to the positioning management device is used for illustration.
[0171] In a possible implementation, the second device may send multiple signals, and the first device may determine the first measurement result based on the multiple signals. The multiple signals may include at least the first signal and the second signal. In the embodiment of the present application, the multiple signals including the first signal and the second signal are used as an example for introduction. When the multiple signals include more signals, the relevant scheme is similar to it and will not be repeated.
[0172] based on Figure 1 , Figure 2A , Figure 2B , Figure 2C , Figure 2D , Figure 3 and Figure 4 The embodiments shown and the other contents described above, Figure 5 The flowchart of a method for determining a measurement result provided in an embodiment of the present application is exemplified. Figure 5 The embodiment shown can be considered as Figure 4 A possible implementation of step 404 in Figure 5 A possible implementation of a first device determining a first measurement result is provided. Figure 5 The first device, the second device and the positioning management device involved in the above Figure 4 The relevant introduction in will not be repeated here.
[0173] like Figure 5 As shown, the method may include step 501, step 502, step 503, step 504 and step 505. Figure 5 Make an introduction.
[0174] Step 501: A first device determines distance information between a first ARP and a second ARP according to first information.
[0175] The first information includes information indicating a location of the first ARP and a location of the second ARP.
[0176] In a possible implementation manner, the information used to indicate the position of the first ARP and the position of the second ARP may include, for example, at least one of information A1, information A2, information A3, or information A4. Information A1 includes the position information of the first ARP and the position information of the second ARP. Information A2 includes the relative position information of the first ARP and the second ARP. Information A3 includes the distance information between the first ARP and the second ARP. Information A4 includes information used to indicate the distance between the second antenna panel and the first antenna panel. The first ARP corresponds to the first antenna panel of the second device, and the second ARP corresponds to the second antenna panel of the second device.
[0177] Information A1, location information of the first ARP and location information of the second ARP.
[0178] The location information of the first ARP and the second ARP may be coordinate information in a certain coordinate system (such as a geodetic coordinate system), for example, the location information of the first ARP is information for indicating the coordinate position (x1, y1, z1), and the location information of the second ARP is information for indicating the coordinate position (x2, y2, z2). The first device may determine the distance information between the first ARP and the second ARP based on the two location information in the information A1, for example, the straight-line distance between the two coordinate positions may be used as the distance information between the first ARP and the second ARP.
[0179] The coordinate system involved in the embodiments of the present application may be a global coordinate system (Global Coordinate System, GCS) or a local coordinate system (Local Coordinate System, LCS). Among them, the global coordinate system is the coordinate system of the three-dimensional space where the object is located. The local coordinate system, that is, the coordinate system takes the center of the object as the coordinate origin, and the rotation or translation of the object is performed around the local coordinate system. At this time, when the object model is rotated or translated, the local coordinate system also performs the corresponding rotation or translation operation.
[0180] Information A2: relative position information of the first ARP and the second ARP.
[0181] The relative position information of the first ARP and the second ARP may include the relative quantity between the coordinate values of the first ARP and the second ARP, for example, the relative position information of the first ARP and the second ARP is information indicating (Δx, Δy, Δz), wherein Δx is the distance between the projections of the positions of the first ARP and the second ARP on the x-axis, Δy is the distance between the projections of the positions of the first ARP and the second ARP on the y-axis, and Δz is the distance between the projections of the positions of the first ARP and the second ARP on the z-axis. The first device may determine the distance information between the first ARP and the second ARP based on the information A2, for example, the straight-line distance corresponding to the positions of the first ARP and the second ARP may be used as the distance information between the first ARP and the second ARP.
[0182] Information A3: distance information between the first ARP and the second ARP.
[0183] The first device may determine the distance information between the first ARP and the second ARP according to the information A3. The distance information between the first ARP and the second ARP may include the straight-line distance between the first ARP and the second ARP.
[0184] Information A4 is information indicating the distance between the second antenna panel and the first antenna panel.
[0185] Information A4 may include at least one of information A4.1, information A4.2, information A4.3, information A4.4, information A4.5 or information A4.6. Information A4.1 includes position information of the first antenna panel and position information of the second antenna panel. Information A4.2 includes relative position information between the first antenna panel and the second antenna panel. Information A4.3 includes distance information between the second antenna panel and the first antenna panel. Information A4.4 includes orientation information of the first antenna panel and / or the second antenna panel. Information A4.5 includes relative orientation information of the first antenna panel and the second antenna panel. Information A4.6 includes contour information of the first antenna panel and / or the second antenna panel.
[0186] Information A4.1, location information of the first antenna panel and location information of the second antenna panel.
[0187] The position information of the first antenna panel may be the coordinate information of one or some parts on the first antenna panel in a certain coordinate system (such as a geodetic coordinate system). For example, the position information of the first antenna panel is information for indicating a coordinate position (x1, y1, z1), and the coordinate position (x1, y1, z1) is the coordinate of a certain part on the first antenna panel, such as the coordinate of the center of the first antenna panel, or the coordinate of the edge of the first antenna panel, or the coordinate of a part on the first antenna panel or close to (or far from) the second antenna panel, or the coordinate of an antenna array on the first antenna panel close to (or far from) the second antenna panel, etc.
[0188] The position information of the second antenna panel may be the coordinate information of one or some parts on the second antenna panel in a certain coordinate system (such as a geodetic coordinate system). For example, the position information of the second antenna panel is information for indicating a coordinate position (x2, y2, z2), and the coordinate position (x2, y2, z2) is the coordinate of a certain part on the second antenna panel, such as the coordinate of the center part of the second antenna panel, or the coordinate of the edge part of the second antenna panel, or the coordinate of a part on the second antenna panel that is close to (or far from) the first antenna panel, or the coordinate of a position of an antenna array on the second antenna panel that is close to (or far from) the first antenna panel, etc.
[0189] Information A4.2: relative position information between the first antenna panel and the second antenna panel.
[0190] The relative position information between the first antenna panel and the second antenna panel may include the relative amount between a certain part of the first antenna panel and a certain part of the second antenna panel. For example, the relative position information between the first antenna panel and the second antenna panel is information indicating (Δx, Δy, Δz), wherein Δx is the distance between the projection of the center part of the first antenna panel and the center part of the second antenna panel on the x-axis, Δy is the distance between the projection of the center part of the first antenna panel and the center part of the second antenna panel on the y-axis, and Δz is the distance between the projection of the center part of the first antenna panel and the center part of the second antenna panel on the z-axis. The first device may determine the distance information between the first ARP and the second ARP based on the information A2, for example, the straight-line distance corresponding to the center part of the first antenna panel and the center part of the second antenna panel may be used as the distance information between the first ARP and the second ARP.
[0191] Information A4.3: distance information between the second antenna panel and the first antenna panel.
[0192] The distance information between the second antenna panel and the first antenna panel may include distance information between a certain part of the first antenna panel and a certain part of the second antenna panel, such as a straight-line distance between the two parts. For example, the distance information between the second antenna panel and the first antenna panel is a straight-line distance between a central part of the first antenna panel and a central part of the second antenna panel, or a straight-line distance between an edge part of the first antenna panel and an edge part of the second antenna panel.
[0193] Information A4.4: orientation information of the first antenna panel and / or the second antenna panel.
[0194] The orientation information of the first antenna panel may include, for example, (α1, β1, γ1), where α1, β1 and γ1 may respectively represent the angles between the normal vector of the first antenna panel and the x-axis, y-axis and z-axis in a three-dimensional space coordinate system.
[0195] The orientation information of the second antenna panel may include, for example, (α2, β2, γ2), where α2, β2 and γ2 may respectively represent the angles between the normal vector of the second antenna panel and the x-axis, y-axis and z-axis in a three-dimensional space coordinate system.
[0196] Information A4.5: relative orientation information of the first antenna panel and the second antenna panel.
[0197] The relative orientation information of the first antenna panel and the second antenna panel may include the relative amount between the orientation information of the first antenna panel and the second antenna panel. For example, the relative orientation information of the first antenna panel and the second antenna panel is information indicating (Δα, Δβ, Δγ), wherein Δα is the difference in angle between the normal vector of the first antenna panel and the normal vector of the second antenna panel and the x-axis in a certain three-dimensional space coordinate system, Δβ is the difference in angle between the normal vector of the first antenna panel and the normal vector of the second antenna panel and the y-axis in a certain three-dimensional space coordinate system, and Δγ is the difference in angle between the normal vector of the first antenna panel and the normal vector of the second antenna panel and the z-axis in a certain three-dimensional space coordinate system.
[0198] Information A4.6: profile information of the first antenna panel and / or the second antenna panel.
[0199] The profile information of the first antenna panel may include at least one of the shape information of the first antenna panel (such as a rectangle, square, polygon, etc.), the size information of the first antenna panel (such as the length, width, etc. of the first antenna panel), or the arrangement information of the antenna arrays of the first antenna panel. The arrangement information of the antenna arrays of the first antenna panel may include, for example, the distance information between two antenna arrays (or the spacing between antenna arrays), or the distance information between an antenna array (such as an antenna array at the outermost edge of the first antenna panel) and the edge of the first antenna panel.
[0200] The profile information of the second antenna panel may include at least one of the shape information of the second antenna panel, the size information of the second antenna panel, or the arrangement information of the antenna array of the second antenna panel. The arrangement information of the antenna array of the second antenna panel may include, for example, the distance information between two antenna arrays, or the distance information between the antenna array and the edge of the second antenna panel. For related content, please refer to the related introduction of the profile information of the first antenna panel mentioned above, which will not be repeated here.
[0201] In one possible implementation, the distance information between the first ARP and the second ARP can be determined based on at least one of the following (the following contents can all be obtained based on the first information): the distance between the first ARP and the second ARP; the distance between the edge of the first antenna panel and the edge of the second antenna panel; the distance between the antenna array on the edge of the first antenna panel and the antenna array on the edge of the second antenna panel; the distance between the antenna array on the edge of the first antenna panel and the edge of the first antenna panel; the distance between the antenna array on the edge of the second antenna panel and the edge of the second antenna panel; the spacing between the antenna arrays on the first antenna panel; the spacing between the antenna arrays on the second antenna panel; the side length of the first antenna panel; or, the side length of the second antenna panel.
[0202] Fig. 6A The schematic diagram of the structure of multiple antenna panels on the second device provided in the embodiment of the present application is exemplified. Fig. 6A A schematic diagram of the layout of a first antenna panel and a second antenna panel is shown. Fig. 6A As shown, the position of the first ARP is O1 (x1, y1, z1), and the position of the second ARP is O2 (x2, y2, z2). The length of the first antenna panel in the arrangement direction is l1, the length of the second antenna panel in the arrangement direction is l2, and the spacing between the antenna elements on the first antenna panel in the arrangement direction of the antenna panel is d ant1 The spacing between the antenna elements on the second antenna panel in the direction of antenna panel arrangement is d ant2 The distance between the antenna array located at the edge of the first antenna panel and the outline (or edge) of the first antenna panel is d1. The distance between the antenna array located at the edge of the second antenna panel and the outline (or edge) of the second antenna panel is d2. The distance between the first antenna panel and the second antenna panel can be the distance d3 of the edge outlines of the two. The angle between the signal used for positioning (such as the first signal) and the antenna panel (such as the first antenna panel) is Fig. 6A It can be expressed as θ.
[0203] The distance between the first ARP and the second ARP can be expressed as Figure 3 Δd in. Combination Fig. 6A Several methods for calculating Δd are provided:
[0204]
[0205]
[0206]
[0207] Δd=d3
[0208] Δd=d1+d2+d3
[0209] Δd=d1+d2+d3-d ant
[0210] The above formulas can be understood as several examples for calculating Δd. The meaning of each parameter in the above formula can be found in Fig. 6A Related introduction of ant Can be d ant1 or ant2 , or according to d ant1 and d ant2 The calculated value, such as d ant1 and d ant2 The average value of .
[0211] Figure 6BA schematic diagram of the structure of multiple antenna panels on another second device provided in an embodiment of the present application is exemplified. Figure 6B A schematic diagram of the layout of a first antenna panel and a second antenna panel is shown. Figure 6B As shown, O1(x1,y1,z1), O2(x2,y2,z2), l1, l2, d ant1 ,d ant2 , d1 and d2 can refer to the above Figure 6B The distance between the edge contours of the first antenna panel and the second antenna panel in the horizontal direction is d 31 The distance between the edge contours of the first antenna panel and the second antenna panel in the vertical direction is d 32 The angle between the signal used for positioning (such as the first signal) and the antenna panel (such as the first antenna panel) is Figure 6B The angle between the line between point A and point D and the edge of the first antenna panel is expressed as
[0212] The distance between the first ARP and the second ARP can be expressed as Δd, combined with Figure 6B Here is a possible way to calculate Δd:
[0213] in,
[0214] Step 502: The first device obtains second information.
[0215] The second information may include: departure angle information of a signal sent by the second device to the first device. The second information may also include: arrival angle information of a signal sent by the first device to the second device.
[0216] The second information in the embodiment of the present application may be obtained by the first device according to the received first signal and / or second signal, for example, it may be obtained by measuring the first signal and / or second signal. Or the second information may be sent by the second device or the positioning management device to the first device. The second information may be obtained by the second device based on historical experience. For example, the second information may be the range of the departure angle, or it may be the range of the arrival angle.
[0217] Step 503: The first device determines the corresponding distance difference information between the channel of the first signal and the channel of the second signal according to the distance information and the second information.
[0218] The first device can construct a data calculation formula between the distance information, the second information and the distance difference information based on the geometric relationship between the three.
[0219] For example, combining Figure 3 and Fig. 6A For example, the corresponding path difference between the channel of the first signal and the channel of the second signal is ds=(Δd*cosθ).
[0220] For example, combining Figure 3 and Figure 6B For example, the corresponding path difference between the channel of the first signal and the channel of the second signal is ds=(Δd*cos(θ+δ).
[0221] In practical applications, the mathematical operation formula between the distance difference, the distance information and the second information may also be other formulas. The distance difference information in the embodiment of the present application may be understood as information used to indicate the distance difference.
[0222] The distance difference can be calculated based on the geometric position relationship between the antenna panel and the signal, for example, it can be calculated based on the distance between the antenna panels and the direction of the signal. The distance difference information corresponding to the channel of the first signal and the channel of the second signal is caused by the distance between the first ARP and the second ARP, and there may be a certain geometric relationship between the distance between the first ARP and the second ARP and the distance difference. Since the first device can determine the distance difference information in combination with the second information, the accuracy of the distance difference information can be improved, and then the accuracy of the first measurement result can be improved, thereby further improving the positioning accuracy.
[0223] Step 504: The first device determines third information according to the distance difference information.
[0224] The third information includes a phase difference and / or a delay difference between a signal transmitted by a channel of the first signal and a signal transmitted by a channel of the second signal.
[0225] To give a possible example, in, is the phase difference between the signal transmitted by the channel of the first signal and the signal transmitted by the channel of the second signal, ds is the corresponding path difference between the channel of the first signal and the channel of the second signal, λ is the carrier wavelength, * represents multiplication, and π represents pi.
[0226] Here is another possible example: Among them, Δt is the time delay difference between the signal transmitted by the channel of the first signal and the signal transmitted by the channel of the second signal, ds is the corresponding distance difference between the channel of the first signal and the channel of the second signal, and c is the propagation speed of electromagnetic waves.
[0227] Several possible examples are given above. In actual applications, there may be other ways to calculate the third information based on the distance difference information, such as calculation based on modified formulas of the several formulas given above.
[0228] Since the phase difference and / or delay difference between the signal transmitted by the channel of the first signal and the channel of the second signal may be caused by the distance difference between the two channels, the first device determines the phase difference and / or delay difference between the two channels based on the information of the distance difference between the two signals, so that a more accurate phase difference and / or delay difference can be obtained, and then the accuracy of the first measurement result can be improved, thereby further improving the positioning accuracy.
[0229] Step 505: The first device performs a compensation operation on the first signal and / or the second signal according to the third information, and then determines a first measurement result.
[0230] In step 505, there are multiple implementations for the first device to perform a compensation operation and determine the first measurement result. Several possible implementations are introduced below through implementation B1 and implementation B2. In implementation B1, the first device can compensate for the channel estimation result corresponding to the first signal and / or the second signal. In implementation B2, the first device can compensate for the first signal and / or the second signal.
[0231] In implementation mode B1, the first device may compensate for the channel estimation result corresponding to the first signal and / or the second signal, and then determine the first measurement result.
[0232] In a possible implementation, the first device may compensate the channel estimation result corresponding to the first signal and the channel estimation result corresponding to the second signal respectively to obtain the compensated channel estimation result of the first signal and the compensated channel estimation result of the second signal, and the first device may determine the first measurement result based on the compensated channel estimation result of the first signal and the compensated channel estimation result of the second signal. For example, the first signal may splice the compensated channel estimation result of the first signal and the compensated channel estimation result of the second signal to obtain a spliced channel estimation result, and calculate the first measurement result based on the spliced channel estimation result.
[0233] In another possible implementation, the first device may compensate for one of the channel estimation results corresponding to the first signal or the channel estimation results corresponding to the second signal. For example, the first device compensates for the channel estimation result corresponding to the first signal, and does not compensate for the channel estimation result corresponding to the second signal. The first device may determine the first measurement result based on the compensated channel estimation result of the first signal and the uncompensated channel estimation result of the second signal. For example, the first signal may splice the compensated channel estimation result of the first signal and the channel estimation result of the second signal to obtain a spliced channel estimation result, and calculate the first measurement result based on the spliced channel estimation result. For another example, the first device compensates for the channel estimation result corresponding to the second signal, and does not compensate for the channel estimation result corresponding to the first signal. The first device determines the first measurement result based on the compensated channel estimation result of the second signal and the uncompensated channel estimation result of the first signal. The relevant scheme is similar to the above content and will not be repeated.
[0234] For example, the channel estimation result corresponding to the first signal is Channel estimation result of the second signal Where N1 is the number of subcarriers on the PFL corresponding to the first signal, N2 is the number of subcarriers on the PFL corresponding to the second signal, and h 11 It can represent the channel frequency response of the signal used for positioning (such as the first signal) on the first subcarrier of the PFL corresponding to the first signal, h 12 It can represent the channel frequency response of a signal used for positioning (such as the first signal) on the second subcarrier of the PFL corresponding to the first signal, It can represent the channel frequency response of the signal used for positioning (such as the first signal) on the N1th subcarrier of the PFL corresponding to the first signal, h 21 It can represent the channel frequency response of the signal used for positioning (such as the second signal) on the first subcarrier of the PFL corresponding to the second signal, h 22 It can represent the channel frequency response of a signal used for positioning (such as the second signal) on the second subcarrier of the PFL corresponding to the second signal, It can represent the channel frequency response of a signal used for positioning (such as the second signal) on the N2th subcarrier of the PFL corresponding to the second signal.
[0235] For example, the first device compensates the second channel estimation result, for example, the first device performs phase compensation on the second channel estimation result, and the channel estimation result corresponding to the compensated second signal is Wherein, H2 is the channel estimation result corresponding to the second signal before compensation, It is the phase difference between the signal transmitted by the channel of the first signal and the signal transmitted by the channel of the second signal.
[0236] For another example, the first device compensates the second channel estimation result, for example, the first device performs delay compensation on the second channel estimation result, and the channel estimation result corresponding to the compensated second signal is satisfy:
[0237]
[0238] Among them, H2 is the channel estimation result corresponding to the second signal before compensation, Δt is the delay difference between the signal transmitted by the channel of the first signal and the signal transmitted by the channel of the second signal, f2 represents the frequency point of the lowest frequency subcarrier of the PFL corresponding to the second signal, fs can represent the subcarrier spacing, and N2 is the number of subcarriers on the PFL corresponding to the second signal.
[0239] In a possible implementation manner, the first device splices the channel estimation result corresponding to the compensated second signal and the channel estimation result corresponding to the first signal to obtain a spliced channel estimation result. The first device then performs the operation according to H 1+2 A first measurement result may be obtained, the first measurement result including, for example, downlink TOA and / or uplink TDOA.
[0240] In implementation B2, the first device may compensate the first signal and / or the second signal and then determine the first measurement result.
[0241] In a possible implementation, the first device may compensate the first signal and the second signal respectively to obtain a compensated first signal and a compensated second signal, and the first device may determine the first measurement result according to the compensated first signal and the compensated second signal. For example, the first device may splice the compensated first signal and the compensated second signal to obtain a spliced signal, and calculate the first measurement result according to the spliced signal.
[0242] In another possible implementation, the first device may compensate for one of the first signal or the second signal. For example, if the first device compensates for the first signal but does not compensate for the second signal, the first device may determine the first measurement result based on the compensated first signal and the uncompensated second signal. For example, the first signal may splice the compensated first signal and the uncompensated second signal to obtain a spliced signal, and calculate the first measurement result based on the spliced signal. For another example, if the first device compensates for the second signal but does not compensate for the first signal, the first device may determine the first measurement result based on the compensated second signal and the uncompensated first signal. The relevant scheme is similar to the above content and will not be repeated.
[0243] There are many ways for the first device to determine the first measurement result based on the spliced signal, such as the first device determining a channel estimation result based on the spliced signal, and then determining the first measurement result based on the channel estimation result. For another example, the first device determines the first measurement result based on the spliced signal, and this process may not require calculating the channel estimation result.
[0244] Since the distance between the first ARP and the second ARP has a significant impact on the phase difference and / or delay difference between the signal transmitted by the channel of the first signal and the channel of the second signal, the first device determines the third information based on the first information and then performs compensation operations based on the third information. This can improve the accuracy of the compensation amount, thereby further improving the accuracy of the first measurement result.
[0245] Figure 5 The provided scheme provides a scheme for determining a first measurement result based on the first information. It can be seen from the above scheme that the first device can compensate the first signal and / or the second signal based on the first information, and / or compensate for the channel estimation result corresponding to the first signal and / or the channel estimation result corresponding to the second signal. This can solve the problem caused by the non-coplanarity of the antenna panels corresponding to the PFLs of different channels on the second device side. The first measurement result calculated after performing the compensation operation can be more accurate, thereby improving the accuracy of carrier aggregation positioning.
[0246] Above Figure 3 , Figure 4 , Figure 5 , Fig. 6A and Figure 6B The example of the second device sending a signal to the first device is used for the introduction. The solution provided in the embodiment of the present application is also applicable to the solution of the first device sending a signal to the second device, which is introduced below in conjunction with the accompanying drawings.
[0247] Figure 7 A schematic diagram of a communication system architecture is shown exemplarily. Figure 7 In the example, the first device sends a signal to the second device. Figure 3 compared to, Figure 7 The difference is that the first device sends at least one signal, and the at least one signal may include, for example, a third signal and a fourth signal. The second device may receive the third signal through a third ARP, and the second device may receive the fourth signal through a fourth ARP. The third signal and the fourth signal may also be understood as signals on two aggregated CCs. The second device may measure a measurement result based on the third signal and the fourth signal. The process of determining the measurement result by the second device is similar to the process of determining the measurement result by the first device.
[0248] It can be seen that since the third ARP and the fourth ARP on the second device are most likely not common antenna panels, that is, there is a distance between the third ARP and the fourth ARP, there is a distance difference between the propagation distances of the third signal and the fourth signal, which results in the third signal and the fourth signal experiencing different channels, which in turn reduces the accuracy of the measurement results.
[0249] Based on the above problems, an embodiment of the present application provides a possible implementation method. In this implementation method, when determining the measurement result, the second device can determine the measurement result based on the distance between multiple ARPs that receive multiple signals, thereby improving the measurement accuracy.
[0250] In the solution provided in the embodiment of the present application, the third ARP may be the same as or different from the first ARP, and the fourth ARP may be the same as or different from the second ARP. Figure 7 For other contents, please refer to the above Figure 3 The relevant description will not be repeated here.
[0251] based on Figure 1 , Figure 2A , Figure 2B , Figure 2C , Figure 2D , Figure 7 The embodiments shown and the other contents described above, Figure 8 A flowchart of a positioning method provided in an embodiment of the present application is exemplified. Figure 8 The embodiment shown is described by taking the example of a first device sending a signal to a second device. Figure 8 The proposed solution can be considered as Figure 7 A possible embodiment of a communication system architecture is provided. Figure 8 The first device, the second device and the positioning management device in the above Figure 4 The relevant description will not be repeated here.
[0252] like Figure 8 As shown, the method may include the following steps 801, 802 and 804. The method may also include steps 803, 805 and 806. Figure 8 Make an introduction.
[0253] Step 801: The first device sends a third signal.
[0254] Correspondingly, the second device receives the third signal through the third ARP.
[0255] Step 802: The first device sends a fourth signal.
[0256] Correspondingly, the second device receives the fourth signal through a fourth ARP. The fourth ARP is different from the third ARP.
[0257] The third signal and the fourth signal may be SRS, etc. For related examples, please refer to the above description and will not be repeated here.
[0258] In a possible implementation, the second device may receive a request from the positioning management device, which may be used to request the second device to configure resources for the first device. The second device configures resources for the first device based on the request, and sends the information of the resources to the first device, so that the first device sends the third signal and the fourth signal according to the information of the resources. The resources include resources for the third signal and resources for the fourth signal. The second device may also send the information of the resources to the positioning management device. The positioning management device may send the information of the resources to other devices (such as neighboring base stations, etc.) that are prepared to measure the third signal and the fourth signal sent by the first device, so that other devices measure the third signal and the fourth signal based on the information of the resources. The measurement schemes of other devices can refer to the scheme for determining the second measurement result by the second device, which will not be repeated. The positioning management device may also send a positioning measurement request to the second device. After receiving the positioning measurement request, the second device can receive the third signal and the fourth signal from the first device.
[0259] For example, the time domain resources occupied by the third signal and the time domain resources occupied by the fourth signal may be the same (i.e., completely overlapped), or different (e.g., partially overlapped or completely non-overlapped). The frequency domain resources occupied by the third signal and the frequency domain resources occupied by the fourth signal may be continuous frequency domain resources within one frequency band, or may be frequency domain resources within different frequency bands, or may be two discontinuous frequency domain resources within the same frequency band. In a possible implementation, the CC corresponding to the third signal and the CC corresponding to the fourth signal may be different, and may be understood as aggregated CCs. The third signal and the fourth signal may be sent by aggregation. For the relevant content of the third signal and the fourth signal, please refer to the relevant introduction of the first signal and the second signal mentioned above, and will not be repeated here.
[0260] Step 803: The second device obtains fourth information.
[0261] The fourth information includes information for indicating the location of the third ARP and the location of the fourth ARP. The fourth information, the third signal and the fourth signal are used to determine the second measurement result, and the second measurement result is used for positioning.
[0262] In step 803, the second device may obtain the fourth information, for example, the second device obtains the fourth information according to pre-configured information. Step 803 is an optional step and may not be performed.
[0263] Step 804: The second device determines a second measurement result according to the fourth information, the third signal and the fourth signal.
[0264] The second measurement result is used to locate the second device. In the embodiment of the present application, the second device may compensate the third signal and / or the fourth signal based on the fourth information, and then determine the second measurement result. The second device may also compensate the channel estimation result of the third signal and / or the channel estimation result of the fourth signal based on the fourth information, and then determine the second measurement result.
[0265] There are many schemes for the second device to determine the second measurement result. For example, the second device can splice the third signal and the fourth signal as a signal with a larger bandwidth, and then measure the signal with a larger bandwidth to obtain the second measurement result. It can also be understood that the second measurement result is determined based on the signal obtained by splicing the third signal and the fourth signal. Since the signal bandwidth is inversely correlated with the estimated error of the measurement result, this scheme can improve the estimation accuracy of the second measurement result, thereby improving the positioning accuracy.
[0266] In another possible implementation, the second device may concatenate the channel estimation result of the third signal and the channel estimation result of the fourth signal, and then obtain a channel estimation result corresponding to the signal with a larger bandwidth. It can also be understood that the second measurement result is determined based on the channel estimation result corresponding to the signal with a larger bandwidth. Since the signal bandwidth is inversely correlated with the estimation error of the measurement result, this solution can improve the estimation accuracy of the second measurement result, and then improve the positioning accuracy.
[0267] Step 805: The second device sends a second measurement result.
[0268] Correspondingly, the positioning management device receives the second measurement result.
[0269] Step 806: The second device sends second indication information.
[0270] Correspondingly, the positioning management device receives the second indication information. The second indication information indicates that the second measurement result is determined based on the fourth information. In this way, the positioning management device can determine that the second measurement result has a higher accuracy or reliability based on the second indication information, and then when positioning the first device, it can be based on the measurement result with higher accuracy or reliability, or a larger weight can be set for the measurement result with higher accuracy or reliability, thereby improving the positioning accuracy.
[0271] Step 805 and step 806 are optional steps, and step 805 and / or step 806 may not be performed. In one possible implementation, the first device may send multiple signals, and the second device may determine the second measurement result based on the multiple signals. The multiple signals may include at least a third signal and a fourth signal. In the embodiment of the present application, the multiple signals including the third signal and the fourth signal are introduced as an example. When the multiple signals include more signals, the relevant scheme is similar to it and will not be repeated.
[0272] based on Figure 1 , Figure 2A , Figure 2B , Figure 2C , Figure 2D , Figure 7 and Figure 8 The embodiments shown and the other contents described above, Fig. 9 The flowchart of a method for determining a measurement result provided in an embodiment of the present application is exemplified. Fig. 9 The embodiment shown can be considered as Figure 8 A possible implementation of step 804 in . Fig. 9 The first device, the second device and the positioning management device involved in the above Figure 8 The relevant introduction in will not be repeated here. Fig. 9 The scheme in which the second device determines the second measurement result is similar to the scheme in which the first device determines the first measurement result, and the relevant contents can refer to each other.
[0273] like Fig. 9 As shown, the method may include step 901, step 902, step 903, step 904 and step 905. Fig. 9 Make an introduction.
[0274] Step 901: The second device determines distance information between the third ARP and the fourth ARP according to fourth information.
[0275] The fourth information includes information indicating a location of the third ARP and a location of the fourth ARP.
[0276] The information indicating the position of the third ARP and the position of the fourth ARP includes at least one of the following: position information of the third ARP and the position information of the fourth ARP; relative position information of the third ARP and the fourth ARP; distance information between the third ARP and the fourth ARP; or information indicating the distance between the fourth antenna panel and the third antenna panel. The third ARP corresponds to the third antenna panel of the second device, and the fourth ARP corresponds to the fourth antenna panel of the second device.
[0277] Among them, the information used to indicate the distance between the fourth antenna panel and the third antenna panel includes: position information of the third antenna panel and position information of the fourth antenna panel; relative position information between the third antenna panel and the fourth antenna panel; distance information between the fourth antenna panel and the third antenna panel; orientation information of the third antenna panel; orientation information of the fourth antenna panel; relative orientation information of the third antenna panel and the fourth antenna panel; contour information of the third antenna panel; or, at least one item of contour information of the fourth antenna panel.
[0278] The contour information of the third antenna panel includes at least one of the following: shape information of the third antenna panel, size information of the third antenna panel, distance information between two antenna elements of the third antenna panel, or distance information between the antenna element of the third antenna panel and the edge of the third antenna panel. The contour information of the fourth antenna panel includes at least one of the following: shape information of the fourth antenna panel, size information of the fourth antenna panel, distance information between two antenna elements of the fourth antenna panel, or distance information between the antenna element of the fourth antenna panel and the edge of the fourth antenna panel.
[0279] The relevant content of the information used to indicate the location of the third ARP and the location of the fourth ARP can refer to the relevant content of the aforementioned information used to indicate the location of the first ARP and the location of the second ARP, and similarly, it will not be repeated here.
[0280] In one possible implementation, the distance information between the third ARP and the fourth ARP can be determined based on at least one of the following (the following contents can all be obtained based on the fourth information): the distance between the third ARP and the fourth ARP; the distance between the edge of the third antenna panel and the edge of the fourth antenna panel; the distance between the antenna array on the edge of the third antenna panel and the antenna array on the edge of the fourth antenna panel; the distance between the antenna array on the edge of the third antenna panel and the edge of the third antenna panel; the distance between the antenna array on the edge of the fourth antenna panel and the edge of the fourth antenna panel; the spacing between the antenna arrays on the third antenna panel; the spacing between the antenna arrays on the fourth antenna panel; the side length of the third antenna panel; or, the side length of the fourth antenna panel.
[0281] The method for determining the distance information between the third ARP and the fourth ARP may refer to the method for determining the distance information between the first ARP and the second ARP, which will not be described in detail.
[0282] Step 902: The second device obtains fifth information.
[0283] The fifth information may include: departure angle information of the signal sent by the second device to the first device. The fifth information may also include: arrival angle information of the signal sent by the first device to the second device.
[0284] The fifth information in the embodiment of the present application may be obtained by the second device according to the received third signal and / or fourth signal, or the fifth information may be obtained by the second device according to historical experience.
[0285] Step 903: The second device determines the corresponding distance difference information between the channel of the third signal and the channel of the fourth signal according to the distance information between the third ARP and the fourth ARP and the fifth information.
[0286] The method for determining the corresponding distance difference information between the channels of the third signal and the channels of the fourth signal can refer to the method for determining the corresponding distance difference information between the channels of the first signal and the channels of the second signal, and will not be repeated here.
[0287] The above steps 901 to 903 can refer to the above steps 501 to 503 and will not be described in detail.
[0288] Step 904: The second device determines sixth information according to corresponding path difference information between the channel of the third signal and the channel of the fourth signal.
[0289] The sixth information includes a phase difference and / or a delay difference between a signal transmitted by a channel of the third signal and a signal transmitted by a channel of the fourth signal. This scheme is similar to the scheme in which the first device determines the third information, and will not be described in detail.
[0290] Step 905: The second device performs a compensation operation on the third signal and / or the fourth signal according to the sixth information, and then determines a second measurement result.
[0291] In step 905, the second device may compensate for the channel estimation result corresponding to the third signal and / or the fourth signal, or may compensate for the third signal and / or the fourth signal.
[0292] For example, the second device may compensate the channel estimation result corresponding to the third signal and the channel estimation result corresponding to the fourth signal respectively, and determine the second measurement result according to the compensated channel estimation result of the third signal and the compensated channel estimation result of the fourth signal. For example, the third signal may splice the compensated channel estimation result of the third signal and the compensated channel estimation result of the fourth signal to obtain a spliced channel estimation result, and calculate the second measurement result according to the spliced channel estimation result.
[0293] For another example, the second device may compensate for one of the channel estimation result corresponding to the third signal or the channel estimation result corresponding to the fourth signal. For example, the second device compensates for the channel estimation result corresponding to the third signal, splices the compensated channel estimation result of the third signal and the uncompensated channel estimation result of the fourth signal to obtain a spliced channel estimation result, and calculates the second measurement result based on the spliced channel estimation result.
[0294] For another example, the second device may compensate the third signal and the fourth signal respectively, splice the compensated third signal and the compensated fourth signal to obtain a spliced signal, and calculate the second measurement result based on the spliced signal.
[0295] For another example, the second device may compensate for one of the third signal or the fourth signal. For example, the second device compensates for the third signal, splices the compensated third signal and the uncompensated fourth signal to obtain a spliced signal, and calculates the second measurement result based on the spliced signal.
[0296] The relevant solution is similar to the solution provided in the aforementioned step 505 and will not be described in detail.
[0297] Fig. 9 The provided scheme provides a scheme for determining the second measurement result based on the fourth information. It can be seen from the above scheme that the second device can compensate the third signal and / or the fourth signal based on the fourth information, and / or compensate for the channel estimation result corresponding to the third signal and / or the channel estimation result corresponding to the fourth signal. In this way, the problem caused by the non-coplanarity of the antenna panels corresponding to the CCs of different channels on the first device side can be solved. After performing the compensation operation, the second measurement result calculated can be more accurate, thereby improving the accuracy of carrier aggregation positioning.
[0298] It is understandable that in order to implement the functions in the above embodiments, the first device, the second device and the positioning management device may include hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the units and method steps of each example described in the embodiments disclosed in this application, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application scenario and design constraints of the technical solution.
[0299] Fig.10 and Fig.11The following is a schematic diagram of the structure of possible communication devices provided in the embodiments of the present application. These communication devices can be used to implement the functions of the terminal or base station in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments. In the embodiments of the present application, the communication device can be as follows: Figure 1 , Figure 2A , Figure 2B or Figure 2C The terminal device shown may also be Figure 1 , Figure 2A , Figure 2B or Figure 2C The network device (such as a RAN node) shown may also be applied to Figure 1 , Figure 2A , Figure 2B or Figure 2C The chip system of the terminal device or network device shown.
[0300] like Fig.10 As shown, the communication device 1300 includes a processing unit 1310 and a transceiver unit 1320. The communication device 1300 is used to implement the above Figure 4 , Figure 5 , Figure 8 or Fig. 9 The functions of the first device, the second device or the positioning management device in the method embodiment shown in FIG.
[0301] When the communication device 1300 is used to implement Figure 4 or Figure 5 When the function of the first device in the method embodiment is shown, the processing unit 1310 is used to: receive the first signal and the second signal through the transceiver unit 1320, and determine the first measurement result according to the first information, the first signal and the second signal.
[0302] In a possible implementation, when the communication device 1300 is used to implement Figure 4 or Figure 5 When the function of the first device in the method embodiment is shown, the processing unit 1310 is further configured to perform a compensation operation on the first signal and / or the second signal according to the first information.
[0303] In a possible implementation, when the communication device 1300 is used to implement Figure 4 or Figure 5When the function of the first device in the method embodiment shown is performed, the processing unit 1310 is also used to: determine the first measurement result according to at least one of the following: the channel estimation result of the compensated first signal and the channel estimation result of the second signal; the channel estimation result of the first signal and the channel estimation result of the compensated second signal; the channel estimation result of the compensated first signal and the channel estimation result of the compensated second signal; the compensated first signal and the second signal; the first signal and the compensated second signal; or, the compensated first signal and the compensated second signal.
[0304] In a possible implementation, when the communication device 1300 is used to implement Figure 4 or Figure 5 When the function of the first device in the method embodiment is shown, the processing unit 1310 is further used to: determine third information according to the first information, and perform a compensation operation on the first signal and / or the second signal according to the third information.
[0305] In a possible implementation, when the communication device 1300 is used to implement Figure 4 or Figure 5 When the function of the first device in the method embodiment is shown, the processing unit 1310 is further used to: determine the corresponding distance difference information between the channel of the first signal and the channel of the second signal according to the first information, and determine the third information according to the distance difference information.
[0306] In a possible implementation, when the communication device 1300 is used to implement Figure 4 or Figure 5 When the function of the first device in the method embodiment is shown, the processing unit 1310 is also used to: determine the distance information between the first ARP and the second ARP according to the first information, obtain the second information, and determine the distance difference information according to the distance information and the second information.
[0307] In a possible implementation, when the communication device 1300 is used to implement Figure 4 or Figure 5 When the function of the first device in the method embodiment is shown, the processing unit 1310 is further configured to send the first measurement result through the transceiver unit 1320.
[0308] In a possible implementation, when the communication device 1300 is used to implement Figure 4 or Figure 5 When the function of the first device in the method embodiment shown is performed, the processing unit 1310 is further configured to send the first indication information through the transceiver unit 1320.
[0309] In a possible implementation, when the communication device 1300 is used to implement Figure 4 or Figure 5When the function of the first device in the method embodiment is shown, the processing unit 1310 is further configured to receive the first information through the transceiver unit 1320.
[0310] When the communication device 1300 is used to implement Figure 4 or Figure 5 When the function of the second device in the method embodiment shown is performed, the processing unit 1310 is used to execute through the transceiver unit 1320: sending a first signal through the first antenna reference point ARP, sending a second signal through the second ARP, and sending the first information.
[0311] When the communication device 1300 is used to implement Figure 4 or Figure 5 When the function of the positioning management device is performed in the method embodiment shown, the processing unit 1310 is used to: receive the first measurement result through the transceiver unit 1320, and perform positioning according to the first measurement result.
[0312] In a possible implementation, when the communication device 1300 is used to implement Figure 4 or Figure 5 When the positioning management function is performed in the method embodiment shown, the processing unit 1310 is further configured to receive the first indication information through the transceiver unit 1320 .
[0313] When the communication device 1300 is used to implement Figure 8 or Fig. 9 When the function of the second device in the method embodiment is shown, the processing unit 1310 is used to: receive the third signal and the fourth signal through the transceiver unit 1320, and determine the second measurement result according to the fourth information, the third signal and the fourth signal.
[0314] In a possible implementation, when the communication device 1300 is used to implement Figure 8 or Fig. 9 When the function of the second device in the method embodiment is shown, the processing unit 1310 is further used to: perform a compensation operation on the third signal and / or the fourth signal according to the fourth information.
[0315] In a possible implementation, when the communication device 1300 is used to implement Figure 8 or Fig. 9 When the function of the second device in the method embodiment shown is performed, the processing unit 1310 is further used to: determine the second measurement result according to at least one of the following: the channel estimation result of the compensated third signal and the channel estimation result of the fourth signal; the channel estimation result of the third signal and the channel estimation result of the compensated fourth signal; the channel estimation result of the compensated third signal and the channel estimation result of the compensated fourth signal; the compensated third signal and the fourth signal;
[0316] The third signal and the compensated fourth signal; or, the compensated third signal and the compensated fourth signal.
[0317] In a possible implementation, when the communication device 1300 is used to implement Figure 8 or Fig. 9 When the function of the second device in the method embodiment is shown, the processing unit 1310 is further used to: determine sixth information according to the fourth information, and perform a compensation operation on the third signal and / or the fourth signal according to the sixth information.
[0318] In a possible implementation, when the communication device 1300 is used to implement Figure 8 or Fig. 9 When the function of the second device in the method embodiment is shown, the processing unit 1310 is further used to: determine the corresponding distance difference information between the channel of the third signal and the channel of the fourth signal according to the fourth information, and determine the sixth information according to the distance difference information.
[0319] In a possible implementation, when the communication device 1300 is used to implement Figure 8 or Fig. 9 When the function of the second device in the method embodiment shown is performed, the processing unit 1310 is further used to: determine the distance information between the third ARP and the fourth ARP according to the fourth information, obtain the fifth information, and determine the distance difference information according to the distance information and the fifth information.
[0320] In a possible implementation, when the communication device 1300 is used to implement Figure 8 or Fig. 9 When the function of the second device in the method embodiment is shown, the processing unit 1310 is further configured to send the second measurement result through the transceiver unit 1320.
[0321] In a possible implementation, when the communication device 1300 is used to implement Figure 8 or Fig. 9 When the function of the second device in the method embodiment shown is performed, the processing unit 1310 is further configured to send second indication information through the transceiver unit 1320.
[0322] When the communication device 1300 is used to implement Figure 8 or Fig. 9 When the function of the positioning management device is performed in the method embodiment shown, the processing unit 1310 is used to: receive the second measurement result through the transceiver unit 1320, and perform positioning according to the second measurement result.
[0323] In a possible implementation, when the communication device 1300 is used to implement Figure 8 or Fig. 9When the function of the location management device is located in the method embodiment shown, the processing unit 1310 is further configured to receive second indication information through the transceiver unit 1320 .
[0324] For more detailed description of the processing unit 1310 and the transceiver unit 1320, please refer to Figure 3 , Figure 4 , Figure 8 or Fig. 9 The method embodiment shown is described in detail.
[0325] like Fig.11 As shown, the communication device 1400 includes a processor 1410 and an interface circuit 1420. The processor 1410 and the interface circuit 1420 are coupled to each other. It is understood that the interface circuit 1420 can be a transceiver or an input-output interface. Optionally, the communication device 1400 may also include a memory 1430 for storing instructions executed by the processor 1410 or storing input data required by the processor 1410 to execute instructions or storing data generated after the processor 1410 executes instructions.
[0326] When the communication device 1400 is used to implement Figure 3 When the method is shown, the processor 1410 is used to implement the function of the above-mentioned processing unit 1310, and the interface circuit 1420 is used to implement the function of the above-mentioned transceiver unit 1320.
[0327] When the above-mentioned communication device is a chip applied to a terminal, the terminal chip implements the functions of the terminal device in the above-mentioned method embodiment. The terminal chip receives information from the base station, which can be understood as the information is first received by other modules in the terminal (such as a radio frequency module or an antenna), and then sent to the terminal chip by these modules. The terminal chip sends information to the base station, which can be understood as the information is first sent to other modules in the terminal (such as a radio frequency module or an antenna), and then sent to the base station by these modules.
[0328] When the above-mentioned communication device is a chip applied to a base station, the base station chip implements the function of the network device in the above-mentioned method embodiment. The base station chip receives information from the terminal, which can be understood as the information is first received by other modules in the base station (such as a radio frequency module or an antenna), and then sent to the base station chip by these modules. The base station chip sends information to the terminal, which can be understood as the information is sent to other modules in the base station (such as a radio frequency module or an antenna), and then sent to the terminal by these modules.
[0329] In the present application, when entity A sends information to entity B, it can be that A sends it directly to B, or that A sends it to B indirectly through other entities. Similarly, when entity B receives information from entity A, it can be that entity B directly receives the information sent by entity A, or that entity B indirectly receives the information sent by entity A through other entities. Entities A and B here can be RAN nodes or terminals, or modules inside the RAN nodes or terminals. The sending and receiving of information can be information interaction between a RAN node and a terminal, for example, information interaction between a base station and a terminal; the sending and receiving of information can also be information interaction between two RAN nodes, for example, information interaction between a CU and a DU; the sending and receiving of information can also be information interaction between different modules inside a device, for example, information interaction between a terminal chip and other modules of the terminal, or information interaction between a base station chip and other modules in the base station.
[0330] It is understandable that the processor in the embodiments of the present application may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.
[0331] The method steps in the embodiments of the present application can be implemented in hardware or in software instructions that can be executed by a processor. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, register, hard disk, mobile hard disk, CD-ROM or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. The storage medium can also be a component of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in a base station or a terminal. The processor and the storage medium can also be present in a base station or a terminal as discrete components.
[0332] 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 or instructions. When a computer program or instruction is loaded and executed on a computer, the process or function of the embodiment of the present application is executed in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device or other programmable device. The computer program or instruction can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program or instruction can be transmitted from one website site, computer, server or data center to another website site, computer, server or data center by wired or wireless means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server, data center, etc. that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, a hard disk, or a tape; it can also be an optical medium, such as a digital video disc; it can also be a semiconductor medium, such as a solid-state hard disk. The computer-readable storage medium may be a volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.
[0333] In the various embodiments of the present application, unless otherwise specified or provided for in any logical conflict, the terms and / or descriptions between the different embodiments are consistent and may be referenced to each other, and the technical features in the different embodiments may be combined to form new embodiments according to their inherent logical relationships.
[0334] In the present application, "at least one" means one or more, and "more than one" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. In the text description of the present application, the character " / " generally indicates that the previous and next associated objects are in an "or" relationship; in the formula of the present application, the character " / " indicates that the previous and next associated objects are in a "division" relationship. "Including at least one of A, B and C" can mean: including A; including B; including C; including A and B; including A and C; including B and C; including A, B and C.
[0335] It is understood that the various numbers involved in the embodiments of the present application (such as the digital numbers "first" and "second", and the letter numbers "information A1", "implementation method B1", "information C1", etc.) are only distinguished for the convenience of description and are not used to limit the scope of the embodiments of the present application. The size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic.
Claims
1. A positioning method, characterized in that: The method is applicable to a first device, and the method comprises: receiving a first signal, wherein the first signal is sent via a first antenna reference point ARP of a second device; receiving a second signal, the second signal being sent via a second ARP of the second device, the second ARP being different from the first ARP; A first measurement result is determined according to first information, the first signal, and the second signal, wherein the first information includes information indicating the location of the first ARP and the location of the second ARP, and the first measurement result is used for positioning.
2. The method according to claim 1, characterized in that Before determining the first measurement result, the method further includes: A compensation operation is performed on the first signal and / or the second signal according to the first information.
3. The method according to claim 2, characterized in that The determining a first measurement result according to the first information, the first signal and the second signal includes: The first measurement result is determined according to at least one of the following: a channel estimation result of the first signal and a channel estimation result of the second signal after compensation; a channel estimation result of the first signal and a channel estimation result of the second signal after compensation; a channel estimation result of the first signal after compensation and a channel estimation result of the second signal after compensation; the first signal and the second signal after compensation; the first signal and the compensated second signal; or, The compensated first signal and the compensated second signal.
4. The method according to claim 2 or 3, characterized in that The performing a compensation operation on the first signal and / or the second signal according to the first information includes: Determine third information according to the first information, the third information comprising a phase difference and / or a delay difference between a signal transmitted by a channel of the first signal and a signal transmitted by a channel of the second signal; A compensation operation is performed on the first signal and / or the second signal according to the third information.
5. The method according to claim 4, characterized in that The determining the third information according to the first information includes: Determine, according to the first information, corresponding path difference information between a channel of the first signal and a channel of the second signal; The third information is determined according to the distance difference information.
6. The method according to claim 5, characterized in that The determining, according to the first information, corresponding path difference information between a channel of the first signal and a channel of the second signal includes: Determine distance information between the first ARP and the second ARP according to the first information; Acquire second information, where the second information includes: arrival angle information of a signal sent by the first device to the second device, and / or departure angle information of a signal sent by the second device to the first device; The distance difference information is determined according to the distance information and the second information.
7. The method according to any one of claims 1 to 6, characterized in that: The information used to indicate the location of the first ARP and the location of the second ARP includes at least one of the following: The location information of the first ARP and the location information of the second ARP; Relative location information of the first ARP and the second ARP; distance information between the first ARP and the second ARP; or, Information indicating a distance between a second antenna panel and a first antenna panel, the first ARP corresponding to the first antenna panel of the second device, and the second ARP corresponding to the second antenna panel of the second device.
8. The method according to claim 7, characterized in that The information indicating the distance between the second antenna panel and the first antenna panel includes: location information of the first antenna panel and location information of the second antenna panel; Relative position information between the first antenna panel and the second antenna panel; distance information between the second antenna panel and the first antenna panel; orientation information of the first antenna panel; orientation information of the second antenna panel; Relative orientation information of the first antenna panel and the second antenna panel; Profile information of the first antenna panel; or, At least one item of profile information of the second antenna panel.
9. The method according to claim 8, characterized in that The contour information of the first antenna panel includes at least one of: shape information of the first antenna panel, size information of the first antenna panel, distance information between two antenna elements of the first antenna panel, or distance information between the antenna element of the first antenna panel and an edge of the first antenna panel; The contour information of the second antenna panel includes at least one of shape information of the second antenna panel, size information of the second antenna panel, distance information between two antenna arrays of the second antenna panel, or distance information between the antenna array of the second antenna panel and the edge of the second antenna panel.
10. The method according to any one of claims 1 to 9, characterized in that: The time domain resources occupied by the first signal and the time domain resources occupied by the second signal are the same; and / or, The frequency domain resources occupied by the first signal and the frequency domain resources occupied by the second signal are continuous frequency domain resources within a preset frequency band.
11. The method according to any one of claims 1 to 10, characterized in that: The method further comprises: The first measurement result is sent.
12. The method according to any one of claims 1 to 11, characterized in that: The method further comprises: First indication information is sent, where the first indication information indicates that the first measurement result is determined according to first information.
13. The method according to any one of claims 1 to 12, characterized in that: The method further comprises: The first information is received.
14. A positioning method, characterized in that: The method is applicable to a second device, and the method comprises: receiving a third signal from the first device via a third antenna reference point ARP; receiving a fourth signal from the first device via a fourth ARP, the fourth ARP being different from the third ARP; A second measurement result is determined according to fourth information, the third signal and the fourth signal, the fourth information includes information indicating the location of the third ARP and the location of the fourth ARP, and the second measurement result is used for positioning.
15. The method according to claim 14, characterized in that Before determining the second measurement result, the method further includes: A compensation operation is performed on the third signal and / or the fourth signal according to the fourth information.
16. The method according to claim 15, characterized in that The determining the second measurement result according to the fourth information, the third signal and the fourth signal includes: The second measurement result is determined according to at least one of the following: a channel estimation result of the third signal and a channel estimation result of the fourth signal after compensation; a channel estimation result of the third signal and a channel estimation result of the fourth signal after compensation; a channel estimation result of the third signal after compensation and a channel estimation result of the fourth signal after compensation; the compensated third signal and the fourth signal; the third signal and the compensated fourth signal; or, The compensated third signal and the compensated fourth signal.
17. The method according to claim 15 or 16, characterized in that The performing a compensation operation on the third signal and / or the fourth signal according to the fourth information includes: Determine sixth information according to the fourth information, the sixth information comprising a phase difference and / or a delay difference between a signal transmitted by a channel of the third signal and a signal transmitted by a channel of the fourth signal; A compensation operation is performed on the third signal and / or the fourth signal according to the sixth information.
18. The method according to claim 17, characterized in that The determining the sixth information according to the fourth information includes: Determine, according to the fourth information, path difference information corresponding to a channel of the third signal and a channel of the fourth signal; The sixth information is determined according to the distance difference information.
19. The method according to claim 18, characterized in that The determining, according to the fourth information, corresponding path difference information between a channel of the third signal and a channel of the fourth signal includes: Determine distance information between the third ARP and the fourth ARP according to the fourth information; Acquire fifth information, where the fifth information includes: arrival angle information of a signal sent by the first device to the second device, and / or departure angle information of a signal sent by the second device to the first device; The distance difference information is determined according to the distance information and the fifth information.
20. The method according to any one of claims 14 to 19, characterized in that: The information for indicating the location of the third ARP and the location of the fourth ARP includes at least one of the following: The location information of the third ARP and the location information of the fourth ARP; Relative position information of the third ARP and the fourth ARP; distance information between the third ARP and the fourth ARP; or, Information indicating a distance between a fourth antenna panel and a third antenna panel, the third ARP corresponding to the third antenna panel of the second device, and the fourth ARP corresponding to the fourth antenna panel of the second device.
21. The method of claim 20, wherein: The information indicating the distance between the fourth antenna panel and the third antenna panel includes: position information of the third antenna panel and position information of the fourth antenna panel; Relative position information between the third antenna panel and the fourth antenna panel; distance information between the fourth antenna panel and the third antenna panel; orientation information of the third antenna panel; orientation information of the fourth antenna panel; Relative orientation information of the third antenna panel and the fourth antenna panel; Profile information of the third antenna panel; or, At least one item of profile information of the fourth antenna panel.
22. The method according to claim 21, characterized in that The contour information of the third antenna panel includes at least one of shape information of the third antenna panel, size information of the third antenna panel, distance information between two antenna elements of the third antenna panel, or distance information between an antenna element of the third antenna panel and an edge of the third antenna panel; The contour information of the fourth antenna panel includes: at least one of shape information of the fourth antenna panel, size information of the fourth antenna panel, distance information between two antenna arrays of the fourth antenna panel, or distance information between the antenna array of the fourth antenna panel and the edge of the fourth antenna panel.
23. The method according to any one of claims 14 to 22, characterized in that: The time domain resources occupied by the third signal are the same as the time domain resources occupied by the fourth signal; and / or, The frequency domain resources occupied by the third signal and the frequency domain resources occupied by the fourth signal are continuous frequency domain resources within a preset frequency band.
24. The method according to any one of claims 14 to 23, characterized in that The method further comprises: The second measurement result is sent.
25. The method according to any one of claims 14 to 24, characterized in that The method further comprises: Second indication information is sent, where the second indication information indicates that the second measurement result is determined according to fourth information.
26. A communication device, characterized in that: The method comprises a module for executing the method as claimed in any one of claims 1 to 13, or comprises a module for executing the method as claimed in any one of claims 14 to 25.
27. A communication device, characterized in that: The method comprises a processor and an interface circuit, wherein the interface circuit is used to receive signals from other communication devices and transmit them to the processor or send signals from the processor to other communication devices, and the processor is used to implement the method as described in any one of claims 1 to 13 or the method as described in any one of claims 14 to 25 through a logic circuit or executing code instructions.
28. A communication device, characterized in that: The method comprises a processor, wherein the processor is used to implement the method according to any one of claims 1 to 13 or the method according to any one of claims 14 to 25 through a logic circuit or executing a code instruction.
29. A computer-readable storage medium, characterized in that: The storage medium stores a computer program or an instruction. When the computer program or the instruction is executed by the communication device, the method according to any one of claims 1 to 13 or the method according to any one of claims 14 to 25 is implemented.
30. A computer program product, characterized in that The computer program product stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a computer, the computer executes the method according to any one of claims 1 to 13, or the method according to any one of claims 14 to 25.
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Cited By
Positioning method, and apparatus, storage medium and computer program product
EP4770141A1