WO2020155949A1 - Procédé de positionnement d'utilisateur, éléments de réseau, système et support d'informations - Google Patents

Procédé de positionnement d'utilisateur, éléments de réseau, système et support d'informations Download PDF

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Publication number
WO2020155949A1
WO2020155949A1 PCT/CN2019/128145 CN2019128145W WO2020155949A1 WO 2020155949 A1 WO2020155949 A1 WO 2020155949A1 CN 2019128145 W CN2019128145 W CN 2019128145W WO 2020155949 A1 WO2020155949 A1 WO 2020155949A1
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network element
reference signal
positioning
positioning reference
information
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PCT/CN2019/128145
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English (en)
Chinese (zh)
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WO2020155949A9 (fr
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郝金平
杨水根
谭巍
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华为技术有限公司
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Publication of WO2020155949A9 publication Critical patent/WO2020155949A9/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Definitions

  • This application relates to the field of communication technology, and in particular to a method for user positioning.
  • the positioning technology is a technology used to determine the geographic location of a user equipment (UE), and can use the resources of a wireless communication network to directly or indirectly obtain the location information of the UE.
  • Positioning technology has a wide range of applications in various fields such as emergency assistance positioning, criminal location tracking, navigation and traffic control. How to design a low-latency and high-precision positioning method has always been the focus of positioning technology research.
  • the concept of separating the centralized unit (central unit or control unit, CU) and distributed unit (DU) is introduced, that is, the base station is divided into CU and DU. section.
  • a CU can be connected to one or more DUs at the same time.
  • the embodiments of the present application provide a method, network element, system and storage medium for user positioning. Specifically, a user positioning method under a network architecture with CU/DU separation is provided.
  • the first aspect of this application provides a user positioning method, which can be applied to a communication network architecture in which a centralized unit CU network element and a distributed unit DU network element are separated.
  • the user positioning method involves a centralized unit CU network in the application process.
  • Element and distributed unit DU network element may include: the centralized unit CU network element sends configuration information to the distributed unit DU network element, and the configuration information is used to configure the positioning reference signal sent by the DU network element.
  • Positioning reference signals include not only the positioning reference signal (PRS) used for positioning, but also the demodulation reference signal (de-modulation reference signal, DMRS), and the channel state information reference signal (channel state information reference signal, CSI-RS). ), tracking reference signal (tracking reference signal, TRS), etc.
  • PRS positioning reference signal
  • DMRS demodulation reference signal
  • CSI-RS channel state information reference signal
  • TRS tracking reference signal
  • the CU network element sends a first message to the target user equipment UE, the first message may include the type of information to be measured or the configuration information of the positioning reference signal, and the first message includes the type of information to be measured or the configuration information of the positioning reference signal , But can also include other information besides the type of information to be measured or the configuration information of the positioning reference signal.
  • the first message is used for the target UE to perform positioning measurement, that is, the UE performs positioning measurement according to the received first message.
  • the configuration information may include the sequence configuration of the positioning reference signal, or the time configuration of the positioning reference signal, or the periodic configuration of the positioning reference signal, or the positioning The frequency configuration of the reference signal transmission or the bandwidth configuration of the positioning reference signal or the downlink beam configuration of the positioning reference signal.
  • the configuration information may also include an indication of a resource set.
  • the resource set includes preset information. The preset information may Recognized by CU and DU.
  • the method may further include: the CU network element receives a second message sent by the DU network element,
  • the second message may include information configured by the DU network element itself or positioning assistance information of the DU network element.
  • the centralized unit CU network element before the centralized unit CU network element sends configuration information to the distributed unit DU network element, It may also include: the CU network element receives a third message sent by the positioning management function LMF network element, the third message is used to trigger the CU network element to send configuration information to the DU network element, and the third message may include an indication of the positioning method or waiting The type of measurement information or the identifier of the DU network element.
  • the fourth possible implementation manner may further include: the CU network element receives the measurement result sent by the target UE.
  • the CU network element sends the measurement result to the LMF network element, or the CU network element calculates the location of the target UE based on the measurement result and sends the target to the LMF network element or the core access and mobility management function (AMF) network element The location of the UE.
  • AMF core access and mobility management function
  • the fifth possible implementation manner it may further include: the CU network element initiates a positioning measurement request, and the positioning measurement request is used to trigger The CU network element sends configuration information to the DU network element.
  • the sixth possible implementation manner may include: the CU network element receives the measurement result sent by the target UE, and determines the location of the target UE according to the measurement result .
  • the second aspect of the present application provides a user positioning method, which may include: the distributed unit DU network element receives configuration information sent by the centralized unit CU network element, the configuration information is used to configure the positioning reference signal of the DU network element, and the configuration information It may include the sequence configuration of the positioning reference signal, or the time configuration of the positioning reference signal, or the periodic configuration of the positioning reference signal, or the frequency configuration of the positioning reference signal transmission or the bandwidth configuration of the positioning reference signal, or the downlink beam of the positioning reference signal Configuration.
  • the DU network element sends a positioning reference signal to the target user equipment UE.
  • the positioning reference signal is used for the target UE to perform positioning measurement.
  • the configuration information may also include an indication of a resource set.
  • the resource set includes preset information. Information can be recognized by CU and DU.
  • the method may further include: the DU network element sends a first message to the CU network element according to the received request message, and the first message may include Information configured by the DU network element itself or positioning assistance information of the DU network element.
  • the third aspect of the present application provides a method for user positioning, which may include: user equipment UE receiving a first message sent by a network element of a centralized unit CU, where the first message may include the type of information to be measured or configuration information of positioning reference signals
  • the first message includes the type of information to be measured or the configuration information of the positioning reference signal, but may also include other information except the type of information to be measured or the configuration information of the positioning reference signal.
  • the first message is used for the target UE to perform positioning measurement.
  • the UE measures the information to be measured according to the first message and sends the measurement result to the first network element, so that the second network element calculates the position of the target UE according to the measurement result.
  • the first network element is the same as the second network element, and both the first network element and the second network element are CU network elements, that is,
  • the UE sends the measurement result to the first network element so that the second network element calculates the position of the target UE according to the measurement result, which may include: the UE sends the measurement result to the CU network element, so that the CU network element calculates the position of the target UE according to the measurement result .
  • the first network element is the same as the second network element, and both the first network element and the second network element are LMF network elements, that is, The UE sends the measurement result to the first network element, so that the second network element calculates the location of the target UE according to the measurement result, which may include: the UE sends the measurement result to the location management function LMF network element, so that the LMF network element calculates the target according to the measurement result The location of the UE.
  • the first network element is different from the second network element, the first network element is a CU network element, and the second network element is an LMF network element. That is, the UE sends the measurement result to the first network element, so that the second network element calculates the location of the target UE according to the measurement result, which may include: the UE sends the measurement result to the CU network element, so that the CU network element sends the measurement result
  • the location management function LMF network element is given, so that the LMF network element calculates the location of the target UE according to the measurement result.
  • the fourth aspect of the present application provides a centralized unit CU network element.
  • the CU network element has the function of implementing the foregoing first aspect or any one of the possible implementation methods of the first aspect. This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the fifth aspect of the present application provides a distributed unit DU network element.
  • the DU network element has the function of implementing the second aspect or any one of the possible implementation methods of the second aspect. This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the sixth aspect of the present application provides a user equipment UE, which has the function of implementing the foregoing third aspect or any one of the possible implementation methods of the third aspect.
  • This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the seventh aspect of the present application provides a centralized unit CU network element, which may include: a processor and a memory; the memory is used to store computer execution instructions, and when the CU network element is running, the processor executes the computer stored in the memory The instruction is executed so that the CU network element executes the user positioning method in the first aspect or any one of the possible implementation manners of the first aspect.
  • the eighth aspect of the present application provides a distributed unit DU network element, which may include: a processor and a memory; the memory is used to store computer execution instructions, and when the DU network element is running, the processor executes the computer stored in the memory The instruction is executed, so that the DU network element executes the user positioning method according to the second aspect or any one of the possible implementation manners of the second aspect.
  • a ninth aspect of the present application provides a computer-readable storage medium that stores instructions in the computer-readable storage medium, and when it runs on a computer, the computer can execute the first aspect or any possible implementation of the first aspect. Way of user positioning.
  • the tenth aspect of the present application provides a computer-readable storage medium that stores instructions in the computer-readable storage medium, and when it runs on a computer, the computer can execute the second aspect or any possible implementation of the second aspect. Way of user positioning.
  • the eleventh aspect of the present application provides a computer-readable storage medium that stores instructions in the computer-readable storage medium, and when it runs on a computer, the computer can execute the third aspect or any one of the third aspects mentioned above.
  • the user positioning method of the realization method is not limited to:
  • the twelfth aspect of the present application provides a computer program product containing instructions, which when running on a computer, enables the computer to execute the user positioning method of the first aspect or any one of the possible implementation manners of the first aspect.
  • the thirteenth aspect of the present application provides a computer program product containing instructions, which when running on a computer, enables the computer to execute the user positioning method of the second aspect or any one of the possible implementation manners of the second aspect.
  • the fourteenth aspect of the present application provides a computer program product containing instructions, which when running on a computer, enables the computer to execute the user positioning method of the third aspect or any one of the possible implementation manners of the third aspect.
  • a fifteenth aspect of the present application provides a chip system, which includes a processor, and is configured to support a CU network element to implement the foregoing first aspect or any one of the possible implementations of the first aspect.
  • the chip system also includes a memory and a memory for storing necessary program instructions and data for the CU network element.
  • the chip system can be composed of chips, or include chips and other discrete devices.
  • a sixteenth aspect of the present application provides a chip system, which includes a processor, and is configured to support a DU network element to implement the above-mentioned second aspect or any one of the possible implementations of the second aspect.
  • the chip system also includes a memory, and the memory is used to store the necessary program instructions and data of the DU network element.
  • the chip system can be composed of chips, or include chips and other discrete devices.
  • the seventeenth aspect of the present application provides a communication system, which may include a CU network element and a DU network element.
  • the CU network element is the CU network element described in the first aspect or any one of the possible implementations of the first aspect.
  • the DU network element is the DU network element described in the second aspect or any one of the possible implementation manners of the second aspect.
  • the embodiment of the present application provides a user positioning method in a network architecture where the CU/DU is separated.
  • FIG. 1 is a schematic diagram of a positioning architecture provided by an embodiment of the application
  • Figure 2 is an existing method for user positioning
  • Fig. 3 is a schematic diagram of a CU separation architecture in a 5G communication system
  • FIG. 4 is a schematic diagram of an embodiment of a user positioning method provided by an embodiment of the application.
  • FIG. 5 is a schematic diagram of another embodiment of a user positioning method provided by an embodiment of this application.
  • FIG. 6 is a schematic diagram of another embodiment of a user positioning method provided by an embodiment of this application.
  • FIG. 7 is a schematic diagram of another embodiment of a user positioning method provided by an embodiment of this application.
  • FIG. 8 is a schematic diagram of the hardware structure of a communication device provided by an embodiment of the application.
  • FIG. 9 is a schematic structural diagram of a CU network element provided by an embodiment of the application.
  • FIG. 10 is a schematic structural diagram of a DU network element provided by an embodiment of this application.
  • FIG. 11 is a schematic structural diagram of a UE-related mobile phone provided by an embodiment of the application.
  • the embodiments of the present application provide a method, network element, user equipment, and system for locating user equipment, and specifically, provide a detailed positioning design method under a network architecture where CU and DU are separated. Detailed descriptions are given below.
  • the naming or numbering of steps appearing in this application does not mean that the steps in the method flow must be executed in the time/logical order indicated by the naming or numbering.
  • the named or numbered process steps can be implemented according to the The technical purpose changes the execution order, as long as the same or similar technical effects can be achieved.
  • the division of modules appearing in this application is a logical division. In actual applications, there can be other divisions. For example, multiple modules can be combined or integrated in another system, or some features can be ignored , Or not to execute, in addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, and the indirect coupling or communication connection between modules may be in electrical or other similar forms. There are no restrictions in the application.
  • the modules or sub-modules described as separate components may or may not be physically separate, may or may not be physical modules, or may be distributed to multiple circuit modules, and some or all of them may be selected according to actual needs Module to achieve the purpose of this application program.
  • FIG. 1 is a schematic diagram of a positioning architecture provided by an embodiment of the application.
  • the schematic diagram of the architecture shown in Figure 1 is a schematic diagram of the architecture of the positioning UE applied in the 5G system, which may include: user equipment UE, access network (AN), AMF network element, and location management function (location management function) , LMF) network element.
  • the AN can also be referred to as a radio access network (radio access network, RAN) in specific applications.
  • the RAN is composed of access network equipment and is responsible for the access of user equipment.
  • the RAN equipment of the 5G network can be the next generation (NG) RAN equipment, or the evolved universal terrestrial radio access network (E-UTRAN) equipment.
  • the 5G network can be connected to the above two at the same time.
  • the RAN device in the embodiment of the application may be a next generation NodeB (gNB) or a next generation-evolved NodeB (ng-eNB).
  • gNB next generation NodeB
  • ng-eNB next generation-evolved NodeB
  • gNB provides UE with new radio (NR) user plane functions and control plane functions
  • ng-eNB provides UE with evolved universal terrestrial radio access (E-UTRA) user plane Functions and control plane functions.
  • E-UTRA evolved universal terrestrial radio access
  • the AMF network element is responsible for the user's access management and controls the user's service access. Specifically, in the positioning architecture, the AMF network element can be used to initiate a positioning request, or to control the base station to perform positioning.
  • the LMF network element is responsible for positioning management. For example, it receives positioning requests from other network elements (such as AMF network elements), collects positioning data of the user, and obtains the user's position after positioning calculation.
  • the LMF network element can also manage and configure base stations or positioning management units, and implement positioning reference signal configuration.
  • the user equipment UE involved in this application can refer to any applicable terminal equipment, and can include (or can refer to) such as wireless transmit/receive unit (WTRU), mobile station, mobile node, mobile device, fixed or Mobile subscription units, pagers, mobile phones, handheld devices, vehicle-mounted devices, wearable devices, PDAs (personal digital assistants, PDAs), smartphones, notebook computers, computers, touch screen devices, wireless sensors, or consumer electronic devices.
  • WTRU wireless transmit/receive unit
  • mobile station mobile node
  • mobile device fixed or Mobile subscription units
  • pagers mobile phones
  • handheld devices vehicle-mounted devices
  • wearable devices wearable devices
  • PDAs personal digital assistants, PDAs
  • smartphones notebook computers, computers, touch screen devices, wireless sensors, or consumer electronic devices.
  • the "mobile" station/node/device here means a station/node/device connected to a wireless (or mobile) network, and is not necessarily related to the actual mobility of the station/node/device.
  • the user equipment UE can be connected to the AMF network element through the RAN, and the AMF network element is connected to the LMF network element.
  • the interfaces and connections in this architecture can include: LTE-Uu, NR-Uu, NG-C and NLs.
  • NG-C is the control plane connection between RAN and AMF network elements
  • LTE-Uu is the protocol interface between ng-eNB and UE
  • NR-Uu is the protocol interface between UE and gNB
  • NLs is the LMF network The protocol interface between the element and the AMF network element.
  • the Observed Time Difference of Arrival (OTDOA) method is widely used.
  • the principle of this method is that when there are three or more base stations in the system, by measuring the propagation time difference of the wireless signal from any two of the at least three base stations to the positioned UE, the position of the positioned UE is calculated. The distance difference between any two base stations.
  • the trajectory of the positioned UE is a curve with the focus of any two base stations and the difference in distance between them.
  • the positioned user equipment can obtain at least two curves by measuring and calculating at least three base stations, and the position of the positioned UE is the intersection of the at least two curves.
  • a user positioning method under the traditional communication system architecture may include the following steps:
  • a location management function network element (location management function, LMF) requests multiple base stations near the UE to be located to send auxiliary information for OTDOA positioning.
  • the multiple base stations After receiving the request, the multiple base stations send their respective positioning assistance information to the LMF network element, for example, sending their respective position reference signal (position reference signal, PRS) configuration.
  • position reference signal position reference signal, PRS
  • the LMF network element then sends the received positioning assistance information to the positioned UE.
  • the LMF network element initiates a positioning information measurement request to the positioned UE.
  • the positioned UE measures the arrival time difference of signals from multiple base stations to complete the measurement and sends the measurement information to the LMF network element.
  • the LMF network element calculates the position of the positioned UE based on the measurement information reported by the positioned UE.
  • the application process of the OTDOA positioning method requires multiple interactions between the LMF network element and multiple base stations, and between the LMF network element and the UE being located. Therefore, under the traditional communication system architecture, it is difficult to reduce the time delay of the positioning technology.
  • next generation radio base station (next generation NodeB, gNB) or the next generation-evolved NodeB (ng-eNB) adopts a centralized unit (central unit or control unit, CU) and a distributed unit (distributed unit). , DU) separate network architecture, that is to say, the gNB or ng-eNB can be composed of one CU and one or more DUs, and one CU can be connected to one or more DUs at the same time.
  • Fig. 3 shows a schematic diagram of a CU/DU separation architecture in a 5G communication system.
  • the 5G communication system includes the next generation core (NGC) and the radio access network (RAN) connected to the NGC.
  • the RAN connected to the NGC includes the gNB and the ng-eNB. For ease of description, only One gNB and one ng-eNB are shown.
  • a gNB or ng-eNB may be composed of a centralized unit (central unit, CU) and one or more distributed units (DU).
  • a gNB or ng-eNB as shown in FIG. 3 is composed of one CU and two DUs. Among them, the CU and DU are connected through the F1 interface.
  • the function division of CU and DU can be divided according to the protocol stack.
  • One possible way is to deploy the radio resource control (RRC), packet data convergence protocol (PDCP) layer and service data adaptation protocol (SDAP) layer in the CU.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • SDAP service data adaptation protocol
  • the radio link layer control protocol (radioLink control, RLC), media access control (media access control, MAC), and physical layer (physical layer, PHY) are deployed in the DU.
  • the CU has the processing capabilities of RRC, PDCP and SDAP.
  • DU has the processing capabilities of RLC, MAC, and PHY.
  • the above function segmentation is just an example, and there may be other segmentation methods.
  • the CU includes processing capabilities of RRC, PDCP, RLC, and SDAP, and the DU has processing capabilities of MAC and PHY.
  • the CU includes the processing capabilities of RRC, PDCP, RLC, SDAP, and part of the MAC (for example, adding a MAC header), and the DU has the processing capability of PHY and part of the MAC (for example, scheduling).
  • the names of CU and DU may change, as long as the access network node that can realize the above-mentioned functions can be regarded as CU and DU in this application.
  • FIG. 4 it is a schematic diagram of user positioning provided by an embodiment of this application. It includes the following steps:
  • the CU network element sends configuration information to the DU network element.
  • the CU is triggered to send configuration information to the DU, and the configuration information is used to configure the positioning reference signal sent by the DU network element.
  • the reference signal is a signal that is predicted by both the sender and receiver.
  • the reference signal is a positioning reference signal, which is sent to the UE by the DU network element.
  • the positioning reference signal in this application not only includes a reference signal (positioning reference signal, PRS) for positioning, but also includes a demodulation reference signal (de-modulation reference signal, DMRS), and a channel state information reference signal (channel state information). information reference signal (CSI-RS), tracking reference signal (tracking reference signal, TRS), etc.
  • PRS positioning reference signal
  • DMRS demodulation reference signal
  • CSI-RS channel state information reference signal
  • TRS tracking reference signal
  • the UE at the receiving end may use the positioning reference signal sent by the DU network element at the transmitting end to perform channel estimation, and estimate the data signal sent by the DU according to the channel estimation result.
  • the configuration information may include at least one of the following information: configuration information of the positioning reference signal sequence, or configuration information of the time when the positioning reference signal is sent, the configuration information of the positioning reference signal transmission period, and the frequency and bandwidth of the positioning reference signal transmission Configuration information, frequency hopping configuration, or configuration information of other reference signals of the positioning reference signal, such as the configuration information of the downlink beam of the positioning reference signal, etc.
  • the configuration information may also include an indication of a resource set.
  • the indication of the resource set is used to indicate preset information, and the preset information may be identified by the CU network element and the DU network element.
  • a first resource set and a second resource set are preset, and the first resource set includes the first configuration information of the positioning reference signal sequence, or the first configuration of the positioning reference signal transmission time and the positioning reference signal transmission period Information, the first configuration information of the frequency and bandwidth sent by the positioning reference signal.
  • the second resource set includes second configuration information of the positioning reference signal sequence, or second configuration information of the time when the positioning reference signal is sent, the second configuration information of the positioning reference signal transmission period, and the second configuration information of the frequency and bandwidth of the positioning reference signal.
  • the positioning reference signal sent by the DU network element is configured according to the configuration information of the first resource set. If the CU network element sends The DU network element sends configuration information, and the indication of the resource set in the configuration information is the second resource set, and the positioning reference signal sent by the DU network element is configured according to the configuration information of the second resource set.
  • first resource set and the second resource set listed in the embodiments of this application are merely examples for illustration. In the actual application process, the number of resource sets and the specific configuration included in the resource set can be set according to actual needs. Information, the embodiment of this application does not specifically limit this.
  • the indication of the resource set may be an index, and each index corresponds to a resource set. The following is the same and will not be repeated.
  • the CU network element sends the first message to the target user equipment UE.
  • the first message includes the type of information to be measured or the configuration information of the positioning reference signal, and the first message is used to trigger the target UE to perform positioning measurement.
  • the first message may include the type of information to be measured, or the first message may include the type of information to be measured and the corresponding QoS requirements of the information to be measured, or the first message may include the type of information to be measured, the DU network
  • the first message may include the type of information to be measured and the configuration information of the positioning reference signal, or the first message may include the type of information to be measured, the QoS requirements corresponding to the information to be measured, and the configuration information of the positioning reference signal.
  • Configuration information may be
  • the first message in the embodiment of the present application includes the type of information to be measured or configuration information of the positioning reference signal, but may also include other information except the type of information to be measured or the configuration information of the positioning reference signal.
  • the first message may be sent to the target user equipment UE through one or more messages. This application does not limit the specific implementation.
  • the UE performs positioning measurement according to the received first message.
  • the CU network element is triggered to send configuration information to the DU network element, and the triggering method includes:
  • the CU network element receives the positioning message sent by the LMF network element, for example, a positioning request.
  • FIG. 5 another schematic diagram of user positioning provided in this embodiment of the application. It includes the following steps:
  • the LMF network element sends a first message to the CU network element.
  • the CU network element may also be called CU or CU network device.
  • the first message is used to notify the CU to perform positioning measurement on the first UE, for example, a positioning request.
  • the first message includes an indication of the positioning method, such as the OTDOA positioning method or the downlink-angle of departure (DL-AoD) positioning method.
  • the embodiment of this application does not limit the positioning of the user equipment The positioning method used.
  • the CU cannot identify a specific positioning method.
  • the first message may include specific measurement information, such as time difference-based measurement or angle-based measurement or other positioning
  • the specific positioning measurement information required by the method is not limited in the embodiments of this application.
  • it may also include quality of service (QoS) requirements, ID information of UEs participating in positioning, and participation
  • QoS quality of service
  • ID information of UEs participating in positioning may also include ID information of UEs participating in positioning
  • participation The list of DUs for positioning measurement, where the list of DUs may be identified by the ID of the DU network element, which will not be repeated here.
  • the first message may include one or more of the foregoing measurement information.
  • the CU sends configuration information to the DU according to the first message sent by the LMF.
  • the CU sends configuration information to all DUs in the list.
  • the CU may select N DUs for positioning measurement, and send configuration information to the N DUs, where N is a positive integer.
  • the first message sent by the CU received from the LMF network element includes an indication of the positioning method.
  • the indicating that the positioning method is the OTDOA positioning method
  • the first message includes participation in positioning measurement
  • the list includes the first DU, the second DU, and the third DU
  • the CU sends configuration information to the first DU, the second DU, and the third DU respectively according to the list.
  • the CU may select one or more DUs from the DUs connected to the CU, and send configuration information to the selected DU.
  • the configuration information is used to configure the reference signal sent by the DU, and the reference signal is a signal that is predicted by both the sender and the receiver.
  • the reference signal is sent by the DU.
  • the UE at the receiving end may use the reference signal sent by the DU at the transmitting end to perform channel estimation, and estimate the data signal sent by the DU according to the channel estimation result.
  • the configuration information may include at least one of the following information: configuration information of the positioning reference signal sequence, or configuration information of the reference signal transmission time, reference signal transmission period, and configuration information of the frequency and bandwidth of the reference signal transmission, Including frequency hopping configuration, optionally, other reference signal configuration information, such as positioning reference signal downlink beam configuration information, bandwidth downlink frame number, etc.
  • the configuration information may also include an indication of a resource set, and the indication of the resource set is used to indicate preset information, and the preset information may be recognized by the CU and DU.
  • a first resource set and a second resource set are preset, and the first resource set includes first configuration information of a positioning reference signal sequence, or first configuration information of a positioning reference signal transmission time and a positioning reference signal transmission period , The first configuration information of the frequency and bandwidth sent by the positioning reference signal.
  • the second resource set includes second configuration information of the positioning reference signal sequence, or second configuration information of the time when the positioning reference signal is sent, the second configuration information of the positioning reference signal transmission period, and the second configuration information of the frequency and bandwidth of the positioning reference signal.
  • the positioning reference signal sent by the DU network element is configured according to the configuration information of the first resource set. If the CU network element sends configuration information to the DU network element, and the indication of the second resource set in the configuration information is the second resource set, the positioning reference signal sent by the DU network element is configured according to the configuration information of the second resource set.
  • first resource set and the second resource set listed in the embodiments of this application are merely examples for illustration. In the actual application process, the number of resource sets and the specific configuration included in the resource set can be set according to actual needs. Information, the embodiment of this application does not specifically limit this.
  • the CU sends a second message to the UE.
  • the positioning method generally has two positioning modes, one is UE-based mode, and the other is UE-assisted mode.
  • the difference between these two positioning modes is: on which network element the position calculation is performed.
  • the network element for positioning calculation is the UE, which is called UE-based mode. If the UE performs related measurements and then sends the measurement results to the LMF network element, and the network element for the positioning calculation is the LMF network element, it is called the UE assisted mode.
  • the UE assisted mode mode is taken as an example for description, and the second message may include the configuration information of the positioning reference signal.
  • the configuration information can be sent to the UE by the CU once, or sent to the UE in multiple times by the CU.
  • the CU sends a request for location measurement information to the UE.
  • the requested location information may include the type of information to be measured, and may also include QoS requirements corresponding to the information to be measured.
  • step 503 and step 504 can be combined into one step, that is, the second message sent by the CU to the UE also includes the request for location measurement information.
  • the configuration information of the positioning reference signal is sent to the UE by the CU in multiple times, the position measurement request message may be carried in the message that the CU sends the configuration information of the last positioning reference signal to the UE. information.
  • the UE is triggered to perform positioning measurement.
  • the specific UE measurement information is determined according to the positioning method received by the CU in step 501 or the specific measurement information used. For example, if in some practical applications, if the OTDOA positioning method is adopted, the UE can measure the time difference of arrival of the reference signal.
  • the measurement result may also be angle-based measurement information.
  • the measurement result may also be reference signal receiving power (RSRP) or reference signal receiving quality (reference signal receiving quality). ,RSRQ) etc.
  • the UE sends the measurement result to the CU.
  • the UE measures the information to be measured and obtains the measurement result, and the UE sends the measurement result to the CU.
  • the CU sends the measurement result to the LMF network element.
  • the CU After receiving the measurement result sent by the UE, the CU sends the measurement result to the LMF network element.
  • the LMF network element calculates the location of the UE according to the measurement result.
  • the LMF network element After the LMF network element receives the measurement result sent by the CU, it calculates the location of the UE according to the measurement result.
  • the CU may directly calculate the location of the UE based on the measurement result, and send the location of the UE to the LMF network element or The location of the UE is sent to the AMF network element.
  • the UE may send the measurement result to the LMF network element, and the LMF network element calculates the location of the UE based on the measurement result. .
  • the LMF network element or CU calculates the location of the UE according to the measurement results measured by the UE. It should be noted that in some embodiments, the LMF network element or CU It is also necessary to combine other measurement information to calculate the position of the UE. For example, in the downlink method based on the angle of departure (AoD), the measurement information of the DU is also required to calculate the position of the UE. In the specific application process, different The algorithm may also need to be combined with the measurement information of other network elements to calculate the location of the UE. A person of ordinary skill in the art can obviously obtain a specific implementation solution based on the disclosure of this solution. The following takes the AOD positioning method as an example for specific description.
  • FIG. 6 is another schematic diagram of user positioning provided by an embodiment of the application. It includes the following steps:
  • the LMF network element sends a first message to the CU.
  • the CU may also be called CU network element or CU network device.
  • the first message is used to notify the CU to perform positioning measurement on the first UE.
  • the first message includes an indication of a positioning method, for example, an AOD positioning method is adopted.
  • the embodiment of the present application does not limit the positioning method used to locate the user equipment.
  • the CU cannot identify a specific positioning method.
  • the first message may include specific measurement information, such as time difference-based measurement or angle-based measurement or other positioning
  • the specific positioning measurement information required by the method is not limited in the embodiment of this application. For example, it may also include quality of service (QoS) requirements, ID information of UEs participating in positioning, and participation List of DUs for positioning measurement.
  • QoS quality of service
  • the CU sends a request message to the DU.
  • the request message can be used to request the DU to send configuration information that cannot be configured by the CU but configured by the DU itself. It can also include auxiliary information needed to calculate the distance or direction from the DU to the UE in some positioning methods. For example, in this In the application embodiment, auxiliary information used to calculate AoD may be included, such as AoD fingerprint information database or historical information.
  • the DU sends information or auxiliary information configured by the DU itself to the CU.
  • the CU sends configuration information to the DU.
  • the CU configures the DU according to the first message received in step 601.
  • the CU sends a notification to all the DUs in the list.
  • DU sends configuration information.
  • the CU may select N DUs for positioning measurement, and send configuration information to the N DUs, where N is a positive integer.
  • the first message sent by the LMF network element received by the CU includes an indication of the positioning method, for example, indicating that the positioning method is the AOD positioning method. If the first message includes participation in positioning measurement For example, if the list includes the first DU, the second DU, and the third DU, the CU sends configuration information to the first DU, the second DU, and the third DU respectively according to the list. It should be understood that the number of specific DUs is not restricted in this application.
  • the CU can select one or more DUs from the DUs connected to the CU and send the configuration to the selected DU information.
  • the configuration information is used to configure the reference signal sent by the DU, and the reference signal is a signal that is predicted by both the sender and the receiver.
  • the reference signal is sent to the UE by the DU.
  • the UE at the receiving end may use the reference signal sent by the DU at the transmitting end to perform channel estimation, and estimate the data signal sent by the DU according to the channel estimation result.
  • the configuration information may include at least one of the following information: configuration information of the positioning reference signal sequence, or configuration information of the reference signal transmission time, reference signal transmission period, and configuration information of the frequency and bandwidth of the reference signal transmission, Frequency hopping configuration, configuration information of other reference signals, such as downlink beam configuration information of positioning reference signals, etc.
  • the configuration information may also include an indication of a resource set, and the indication of the resource set is used to indicate preset information, and the preset information may be recognized by the CU and DU.
  • a first resource set and a second resource set are preset, and the first resource set includes first configuration information of a positioning reference signal sequence, or first configuration information of a positioning reference signal transmission time and a positioning reference signal transmission period , The first configuration information of the frequency and bandwidth sent by the positioning reference signal.
  • the second resource set includes second configuration information of the positioning reference signal sequence, or second configuration information of the transmission time of the positioning reference signal, the second configuration information of the positioning reference signal transmission period, and second configuration information of the frequency and bandwidth of the positioning reference signal transmission.
  • the positioning reference signal sent by the DU network element is configured according to the configuration information in the first resource set. If the CU network element sends configuration information to the DU network element, and the indication of the second resource set in the configuration information is the second resource set, the positioning reference signal sent by the DU network element is configured according to the configuration information in the second resource set.
  • first resource set and the second resource set listed in the embodiments of this application are merely examples for illustration. In the actual application process, the number of resource sets and the specific configuration included in the resource set can be set according to actual needs. Information, the embodiment of this application does not specifically limit this.
  • the CU sends a second message to the UE.
  • the positioning method generally has two positioning modes, one is UE-based mode, and the other is UE-assisted mode.
  • the difference between these two positioning modes is: on which network element the position calculation is performed.
  • the network element for positioning calculation is the UE, which is called UE-based mode. If the UE performs related measurements and then sends the measurement results to the LMF network element, and the network element for the positioning calculation is the LMF network element, it is called the UE assisted mode.
  • the UE assisted mode mode is taken as an example for description, and the second message may include DU configuration information.
  • the configuration information can be sent to the UE by the CU once, or sent to the UE in multiple times by the CU.
  • the CU sends a request for location measurement information to the UE.
  • the requested location information may include the type of information to be measured, and may also include QoS requirements corresponding to the information to be measured.
  • step 605 and step 606 may be combined into one step, that is, the second message sent by the CU to the UE also includes the request for location measurement information.
  • the auxiliary information is sent to the UE in multiple times by the CU in step 605
  • the position measurement information may be carried in the message that the CU sends the last auxiliary information to the UE.
  • the UE performs positioning measurement.
  • the specific UE measurement information is determined according to the positioning method received by the CU in step 601 or the specific measurement information used.
  • the measurement result may also be time-based measurement information. In some embodiments, the measurement result may also be RSRP or RSRQ.
  • the UE sends the measurement result to the CU.
  • the UE measures the information to be measured and obtains the measurement result, and the UE sends the measurement result to the CU.
  • the CU sends the measurement result to the LMF network element.
  • the CU After receiving the measurement result sent by the UE, the CU sends the measurement result to the LMF network element.
  • the LMF network element calculates the location of the UE according to the measurement result.
  • the LMF network element After the LMF network element receives the measurement result sent by the CU, it calculates the location of the UE according to the measurement result.
  • the CU may directly calculate the location of the UE based on the measurement result, and send the location of the UE to the LMF network element or The location of the UE is sent to the AMF network element.
  • the UE may send the measurement result to the LMF network element, and the LMF network element calculates the location of the UE based on the measurement result. .
  • the positioning measurement request is initiated by the LMF network element.
  • the positioning measurement request may be initiated by the CU, which will be specifically described below.
  • FIG. 7 is another schematic diagram of user positioning provided by an embodiment of the application. It includes the following steps:
  • the CU initiates a positioning measurement request.
  • the CU has a positioning center function, and the CU can initiate a positioning measurement request.
  • the CU sends configuration information to the DU.
  • the CU sends configuration information to the DU connected to the CU, where the configuration information is used to configure the reference signal sent by the DU, and the reference signal is a signal that is predicted by both the receiving and sending parties.
  • the reference signal is sent to the UE by the DU.
  • the receiving end UE may use the reference signal sent by the transmitting end DU to perform channel estimation, and estimate the data signal sent by the DU according to the channel estimation result.
  • the configuration information may include at least one of the following information: configuration information of the positioning reference signal sequence, configuration information of the reference signal transmission time, reference signal transmission cycle configuration information, reference signal transmission frequency and bandwidth configuration information, hop Frequency configuration, configuration information of other reference signals, such as downlink beam configuration information of positioning reference signals, etc.
  • the configuration information may also include an indication of a resource set, and the indication of the resource set is used to indicate preset information, and the preset information may be recognized by the CU and DU.
  • a first resource set and a second resource set are preset, and the first resource set includes first configuration information of a positioning reference signal sequence, or first configuration information of a positioning reference signal transmission time and a positioning reference signal transmission period , The first configuration information of the frequency and bandwidth sent by the positioning reference signal.
  • the second resource set includes second configuration information of the positioning reference signal sequence, or second configuration information of the transmission time of the positioning reference signal, the second configuration information of the positioning reference signal transmission period, and second configuration information of the frequency and bandwidth of the positioning reference signal transmission.
  • the positioning reference signal sent by the DU network element is configured according to the configuration information of the first resource set. If the CU network element sends configuration information to the DU network element, and the indication of the second resource set in the configuration information is the second resource set, the positioning reference signal sent by the DU network element is configured according to the configuration information of the second resource set.
  • first resource set and the second resource set listed in the embodiments of this application are merely examples for illustration. In the actual application process, the number of resource sets and the specific configuration included in the resource set can be set according to actual needs. Information, the embodiment of this application does not specifically limit this.
  • the CU sends a second message to the UE.
  • the positioning method generally has two positioning modes, one is UE-based mode, and the other is UE-assisted mode. The difference between these two positioning modes is: on which network element the position calculation is performed. If the UE performs related measurements and then calculates the position, the network element for positioning calculation is the UE, which is called UE-based mode. If the UE performs related measurements and then sends the measurement results to the LMF network element, and the network element for the positioning calculation is the LMF network element, it is called the UE assisted mode.
  • the UE assisted mode mode is taken as an example for description, and the second message may include DU configuration information.
  • the configuration information can be sent to the UE by the CU once, or sent to the UE in multiple times by the CU.
  • the CU sends a request for location measurement information to the UE.
  • the requested location information may include the type of information to be measured, and may also include the corresponding QoS requirements of the information to be measured, and so on.
  • step 703 and step 704 can be combined into one step, that is, the second message sent by the CU to the UE also includes the request for location measurement information.
  • the auxiliary information is sent to the UE by the CU in multiple times in step 703, the position measurement information may be carried in the message that the CU sends the last auxiliary information to the UE.
  • the UE is triggered to perform positioning measurement.
  • the specific UE measurement information is determined according to the positioning method received by the CU in step 701 or the specific measurement information used.
  • the UE can perform measurement based on time, and the measurement result measured by the UE is time-based measurement information.
  • the measurement result may also be angle-based measurement information.
  • the measurement result may also be a signal RSRP or RSRQ.
  • the UE sends the measurement result to the CU.
  • the UE measures the information to be measured and obtains the measurement result, and the UE sends the measurement result to the CU.
  • the specific method is as mentioned above and will not be repeated here.
  • the CU calculates the position of the positioned UE according to the measurement result.
  • the foregoing mainly introduces the solutions provided in the embodiments of the present application from the perspective of interaction between various network elements.
  • the aforementioned CU network element and DU network element include hardware structures and/or software modules corresponding to each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the CU network element or DU network element in Figures 4 to 7 can be implemented by one physical device, or can be implemented by multiple physical devices, or can be different logical functional modules in one physical device.
  • the embodiments of this application do not specifically limit this.
  • FIG. 8 shows a schematic diagram of the hardware structure of a communication device provided by an embodiment of the application.
  • the communication device includes at least one processor 801.
  • the communication device may further include: a memory 803, a communication line 802, and at least one communication interface 804.
  • the processor 801 may be a general-purpose central processing unit (central processing unit, CPU), microprocessor, application-specific integrated circuit (ASIC), or one or more programs for controlling the execution of the program of this application. integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • the communication line 802 may include a path to transmit information between the aforementioned components.
  • Communication interface 804 which uses any device such as a transceiver to communicate with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc. , Or it can be a communication interface between the communication module and other modules.
  • RAN radio access network
  • WLAN wireless local area networks
  • the memory 803 can be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types that can store information and instructions
  • the dynamic storage device can also be electrically erasable programmable read-only memory (electrically programmable read-only memory, EEPROM), compact disc read-only memory (CD-ROM) or other optical disk storage, Optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program codes in the form of instructions or data structures and can Any other medium accessed by the computer, but not limited to this.
  • the memory can exist independently and is connected to the processor through a communication line 802. The memory can also be integrated with the processor.
  • the memory 803 is used to store computer-executed instructions for executing the solution of the present application, and the processor 801 controls the execution.
  • the processor 801 is configured to execute computer-executable instructions stored in the memory 803, so as to implement the communication method provided in the following embodiments of the present application.
  • the memory 803 may be coupled with the processor 801 or not.
  • the computer-executed instructions in the embodiments of the present application may also be referred to as application program codes, which are not specifically limited in the embodiments of the present application.
  • the processor 801 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 8.
  • the communication device may include multiple processors, such as the processor 801 and the processor 807 in FIG. 8.
  • processors may be a single-CPU (single-CPU) processor or a multi-core (multi-CPU) processor.
  • the processor here may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).
  • the communication device may further include an output device 805 and an input device 806.
  • the output device 805 communicates with the processor 801, and can display information in a variety of ways.
  • the output device 805 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector (projector) Wait.
  • the input device 806 communicates with the processor 801 and can receive user input in a variety of ways.
  • the input device 806 may be a mouse, a keyboard, a touch screen device, or a sensor device.
  • the aforementioned communication device may be a general-purpose device or a dedicated device.
  • the communication device can be a desktop computer, a portable computer, a network server, a PDA (personal digital assistant, PDA), a mobile phone, a tablet computer, a wireless terminal device, an embedded device, or a device with a similar structure in Figure 8. .
  • PDA personal digital assistant
  • the embodiments of this application do not limit the type of communication equipment.
  • the embodiment of this application can divide the CU network element or the DU network element into functional modules according to the above method examples.
  • each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • FIG. 9 shows a schematic structural diagram of a CU network element.
  • the CU network element provided by the embodiment of the present application may include a sending unit 901,
  • the sending unit 901 is configured to execute step 401 in the embodiment corresponding to FIG. 4, step 402 in the embodiment corresponding to FIG. 4, step 502 in the embodiment corresponding to FIG. 5, and embodiment corresponding to FIG. 5 Step 503 in the embodiment corresponding to FIG. 5, step 507 in the embodiment corresponding to FIG. 5, step 602 in the embodiment corresponding to FIG. 6, and step 602 in the embodiment corresponding to FIG. 6 Step 604, step 605 in the embodiment corresponding to FIG. 6, step 606 in the embodiment corresponding to FIG. 6, step 609 in the embodiment corresponding to FIG. 6, and step 702 in the embodiment corresponding to FIG. , Step 703 in the embodiment corresponding to FIG. 7, step 704 in the embodiment corresponding to FIG. 7, and so on.
  • it may further include a receiving unit 902, configured to execute step 501 in the embodiment corresponding to FIG. 5, step 506 in the embodiment corresponding to FIG. 5, and step 601 in the embodiment corresponding to FIG. 6, Step 603 in the embodiment corresponding to FIG. 6, step 608 in the embodiment corresponding to FIG. 6, step 706 in the embodiment corresponding to FIG. 7, and so on.
  • a receiving unit 902 configured to execute step 501 in the embodiment corresponding to FIG. 5, step 506 in the embodiment corresponding to FIG. 5, and step 601 in the embodiment corresponding to FIG. 6, Step 603 in the embodiment corresponding to FIG. 6, step 608 in the embodiment corresponding to FIG. 6, step 706 in the embodiment corresponding to FIG. 7, and so on.
  • it may further include an initiating unit 903, configured to execute step 701 in the embodiment corresponding to FIG. 7 and so on.
  • it may further include a calculation unit 904, configured to execute step 707 in the embodiment corresponding to FIG. 7 and so on.
  • the DU network element provided by the embodiment of the present application may include a receiving unit 1001
  • the receiving unit 1001 is configured to execute step 401 in the embodiment corresponding to FIG. 4, step 502 in the embodiment corresponding to FIG. 5, step 602 in the embodiment corresponding to FIG. 6, and the embodiment corresponding to FIG. Step 604 in Figure 7, step 702 in the embodiment corresponding to FIG. 7 and so on.
  • it may further include a sending unit 1002, configured to execute step 603 and the like in the embodiment corresponding to FIG. 6 above.
  • the CU network element or the DU network element is presented in the form of dividing various functional modules in an integrated manner.
  • the "module” here can refer to application-specific integrated circuit (ASIC) circuits, processors and memories that execute one or more software or firmware programs, integrated logic circuits, and/or other functions that can provide the above functions.
  • ASIC application-specific integrated circuit
  • Device In a simple embodiment, those skilled in the art can imagine that the CU network element or the DU network element may adopt the form shown in FIG. 8.
  • the processor 801 in FIG. 8 may invoke the computer execution instructions stored in the memory 803 to make the CU network element execute the positioning method in the foregoing method embodiment.
  • the functions/implementation process of the sending unit 901, the receiving unit 902, the initiating unit 903, and the computing unit 904 in FIG. 9 can be implemented by the processor 801 in FIG. 8 calling the computer execution instructions stored in the memory 803.
  • the function/implementation process of the initiating unit 903 and the computing unit 904 in FIG. 9 can be implemented by the processor 801 in FIG. 8 calling the computer execution instructions stored in the memory 803, and the sending unit 901 and the receiving unit 902 in FIG.
  • the function/implementation process of can be implemented through the communication interface 804 in FIG. 8.
  • the CU network element and the DU network element are presented in the form of dividing each functional module in an integrated manner.
  • the embodiment of the present application may also divide the functional modules of the CU network element and the DU network element corresponding to each function, which is not specifically limited in the embodiment of the present application.
  • the user equipment UE involved in this application can refer to any applicable terminal equipment, and can include (or can refer to) such as wireless transmit/receive unit (WTRU), mobile station, mobile node, mobile device, fixed or Mobile subscription units, pagers, mobile phones, handheld devices, vehicle-mounted devices, wearable devices, PDAs (personal digital assistants, PDAs), smartphones, notebook computers, computers, touch screen devices, wireless sensors, or consumer electronic devices.
  • WTRU wireless transmit/receive unit
  • mobile station mobile node
  • mobile device fixed or Mobile subscription units
  • pagers mobile phones
  • handheld devices vehicle-mounted devices
  • wearable devices wearable devices
  • PDAs personal digital assistants, PDAs
  • smartphones notebook computers, computers, touch screen devices, wireless sensors, or consumer electronic devices.
  • the user equipment UE is a mobile phone as an example for description:
  • FIG. 11 shows a block diagram of a part of the structure of a mobile phone related to a user equipment UE provided in an embodiment of the present invention.
  • the mobile phone includes: a radio frequency (RF) circuit 1110, a memory 1120, an input unit 1130, a display unit 1140, a sensor 1150, an audio circuit 1160, a wireless fidelity (WiFi) module 1170, and a processor 1180 , And power supply 1190 and other components.
  • RF radio frequency
  • the RF circuit 1110 can be used for receiving and sending signals during the process of sending and receiving information or talking. In particular, after receiving the downlink information of the base station, it is processed by the processor 1180; in addition, the designed uplink data is sent to the base station.
  • the RF circuit 1110 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier (LNA), a duplexer, and the like.
  • the RF circuit 1110 can also communicate with the network and other devices through wireless communication.
  • the above wireless communication can use any communication standard or protocol, including but not limited to Global System of Mobile Communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (Code Division) Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), Email, Short Messaging Service (SMS), etc.
  • GSM Global System of Mobile Communication
  • GPRS General Packet Radio Service
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • Email Short Messaging Service
  • the memory 1120 may be used to store software programs and modules.
  • the processor 1180 executes various functional applications and data processing of the mobile phone by running the software programs and modules stored in the memory 1120.
  • the memory 1120 may mainly include a program storage area and a data storage area.
  • the program storage area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data (such as audio data, phone book, etc.) created by the use of mobile phones.
  • the memory 1120 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • the memory 1120 may be coupled with the processor 1180 or not.
  • the input unit 1130 can be used to receive inputted digital or character information, and generate key signal input related to user settings and function control of the mobile phone.
  • the input unit 1130 may include a touch panel 1131 and other input devices 1132.
  • the touch panel 1131 also known as a touch screen, can collect user touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 1131 or near the touch panel 1131. Operation), and drive the corresponding connection device according to the preset program.
  • the touch panel 1131 may include two parts: a touch detection device and a touch controller.
  • the touch detection device detects the user's touch position, and detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 1180, and can receive and execute the commands sent by the processor 1180.
  • the touch panel 1131 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave.
  • the input unit 1130 may also include other input devices 1132.
  • other input devices 1132 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, joystick, and the like.
  • the display unit 1140 may be used to display information input by the user or information provided to the user and various menus of the mobile phone.
  • the display unit 1140 may include a display panel 1141.
  • the display panel 1141 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc.
  • the touch panel 1131 can cover the display panel 1141. When the touch panel 1131 detects a touch operation on or near it, it transmits it to the processor 1180 to determine the type of the touch event, and then the processor 1180 responds to the touch event. Type provides corresponding visual output on the display panel 1141.
  • the touch panel 1131 and the display panel 1141 are used as two independent components to realize the input and input functions of the mobile phone, but in some embodiments, the touch panel 1131 and the display panel 1141 can be integrated. Realize the input and output functions of mobile phones.
  • the mobile phone may also include at least one sensor 1150, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor may include an ambient light sensor and a proximity sensor.
  • the ambient light sensor can adjust the brightness of the display panel 1141 according to the brightness of the ambient light.
  • the proximity sensor can close the display panel 1141 and/or when the mobile phone is moved to the ear. Or backlight.
  • the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three-axis), and can detect the magnitude and direction of gravity when it is stationary.
  • mobile phone posture applications such as horizontal and vertical screen switching, related Games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, percussion), etc.; as for other sensors such as gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which can be configured in mobile phones, I will not here Repeat.
  • the audio circuit 1160, the speaker 1161, and the microphone 1162 can provide an audio interface between the user and the mobile phone.
  • the audio circuit 1160 can transmit the electric signal converted from the received audio data to the speaker 1161, which is converted into a sound signal by the speaker 1161 for output; on the other hand, the microphone 1162 converts the collected sound signal into an electric signal, and the audio circuit 1160 After being received, it is converted into audio data, and then processed by the audio data output processor 1180, and sent to, for example, another mobile phone via the RF circuit 1110, or the audio data is output to the memory 1120 for further processing.
  • WiFi is a short-distance wireless transmission technology.
  • the mobile phone can help users send and receive emails, browse web pages, and access streaming media through the WiFi module 1170. It provides users with wireless broadband Internet access.
  • FIG. 11 shows the WiFi module 1170, it is understandable that it is not a necessary component of the mobile phone and can be omitted as needed without changing the essence of the invention.
  • the processor 1180 is the control center of the mobile phone. It uses various interfaces and lines to connect various parts of the entire mobile phone. It executes by running or executing software programs and/or modules stored in the memory 1120, and calling data stored in the memory 1120. Various functions and processing data of the mobile phone can be used to monitor the mobile phone as a whole.
  • the processor 1180 may include one or more processing units; preferably, the processor 1180 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface, application programs, etc. , The modem processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 1180.
  • the mobile phone also includes a power supply 1190 (such as a battery) for supplying power to various components.
  • a power supply 1190 (such as a battery) for supplying power to various components.
  • the power supply can be logically connected to the processor 1180 through a power management system, so that functions such as charging, discharging, and power management can be managed through the power management system.
  • the mobile phone may also include a camera, a Bluetooth module, etc., which will not be repeated here.
  • the processor 1180 included in the UE may also perform the following functions: step 402 in the embodiment corresponding to FIG. 4, step 403 in the embodiment corresponding to FIG. 4, and in the embodiment corresponding to FIG. 5 Step 503 in the embodiment corresponding to Fig. 5, step 505 in the embodiment corresponding to Fig. 5, step 506 in the embodiment corresponding to Fig. 5, step 605 in the embodiment corresponding to Fig. 6, Fig. 6 Step 606 in the corresponding embodiment, step 607 in the embodiment corresponding to FIG. 6, step 608 in the embodiment corresponding to FIG. 6, step 703 in the embodiment corresponding to FIG. 7, and step 703 in the embodiment corresponding to FIG. Step 704, step 705 in the embodiment corresponding to FIG. 7, step 706 in the embodiment corresponding to FIG. 7, and so on.
  • the technical effect that can be obtained can refer to the above-mentioned method embodiment, which will not be repeated here.
  • an embodiment of the present application provides a chip system
  • the chip system includes a processor, and is configured to support the CU network element or the DU network element to realize the above-mentioned positioning method.
  • the chip system also includes memory.
  • the memory is used to store the necessary program instructions and data of the CU network element or the DU network element.
  • the chip system may be composed of chips, or may include chips and other discrete devices, which are not specifically limited in the embodiment of the present application.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website site, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • wired such as coaxial cable, optical fiber, digital subscriber line (DSL)
  • wireless such as infrared, wireless, microwave, etc.
  • the computer-readable storage medium may be any available medium that can be stored by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).
  • the program can be stored in a computer-readable storage medium.
  • the storage medium can include: ROM, RAM, magnetic disk or CD, etc.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Des modes de réalisation de la présente invention concernent un procédé de positionnement d'utilisateur, comprenant les étapes suivantes : un élément de réseau d'unité centrale (CU) envoie des informations de configuration à un élément de réseau d'unité distribuée (DU), les informations de configuration étant utilisées pour configurer un signal de référence de positionnement envoyé par l'élément de réseau DU ; et l'élément de réseau CU envoie un premier message à un équipement utilisateur cible (UE), le premier message comprenant le type d'informations à mesurer, ou des informations de configuration du signal de référence de positionnement, et étant utilisé par l'UE cible pour effectuer une mesure de positionnement. Les modes de réalisation de la présente invention concernent en outre des éléments de réseau correspondants, un système et un support d'informations. La solution technique de la présente invention concerne un procédé de positionnement d'utilisateur destiné à une architecture de réseau divisé CU/DU.
PCT/CN2019/128145 2019-02-03 2019-12-25 Procédé de positionnement d'utilisateur, éléments de réseau, système et support d'informations WO2020155949A1 (fr)

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