WO2020207222A1 - Procédé et appareil de positionnement basés sur une architecture cu-du - Google Patents

Procédé et appareil de positionnement basés sur une architecture cu-du Download PDF

Info

Publication number
WO2020207222A1
WO2020207222A1 PCT/CN2020/080150 CN2020080150W WO2020207222A1 WO 2020207222 A1 WO2020207222 A1 WO 2020207222A1 CN 2020080150 W CN2020080150 W CN 2020080150W WO 2020207222 A1 WO2020207222 A1 WO 2020207222A1
Authority
WO
WIPO (PCT)
Prior art keywords
positioning
network element
uplink
measurement
target device
Prior art date
Application number
PCT/CN2020/080150
Other languages
English (en)
Chinese (zh)
Inventor
郝金平
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2020207222A1 publication Critical patent/WO2020207222A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • 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 positioning in wireless communication systems, and in particular to a positioning method and device based on the CU-DU architecture.
  • GPS Global Positioning System
  • 5th Generation Mobile Networks 5th Generation Mobile Networks or 5th Generation Wireless Systems, 5G
  • 5G 5th Generation Mobile Networks
  • 3GPP Third Generation Partnership Project
  • 3GPP Third Generation Partnership Project
  • the new radio access network (RAN) architecture will be adopted in the 5G New Radio (NR) system.
  • NR 5G New Radio
  • eNB next-generation evolved Node Base
  • LTE Long Term Evolution
  • DU Distributed Unit
  • DU protocol stack function to migrate between the centralized unit CU and the distributed unit DU.
  • CU-DU-based radio access network architecture there is currently no detailed positioning design plan. How to use the CU-DU architecture to design a low-latency, high-precision positioning method is an important research direction of 5G technology.
  • the embodiment of the application provides a positioning method and device based on the CU-DU architecture, which solves the problem of the lack of detailed positioning design solutions under the 5G CU-DU-based radio access network architecture.
  • a positioning method based on the CU-DU architecture including: a positioning center determines an uplink positioning method to be used, and sends a positioning request message to a first network element of a relay network device; The second network element designated in the network device to participate in positioning sends uplink configuration assistance information and an uplink measurement request; the second network element sends an uplink measurement response to the first network element; the first network element sends an uplink measurement response to the positioning center; the positioning center Determine the location information of the target device based on the uplink measurement response.
  • a positioning method flow based on the CU-DU architecture is designed, and the signaling interaction content between each network element and device is defined, which ensures the realization of the positioning technology under the CU-DU architecture.
  • the positioning method based on the CU-DU architecture further includes: the first network element transmits to the second network element designated to participate in positioning in the relay network device, Send configuration information of the downlink reference signal; the first network element sends a downlink measurement request to the target device; the target device sends a downlink measurement response to the first network element.
  • a step of measuring the downlink reference signal measurement correlation is added before the uplink correlation step for beam selection. Compared with traditional uplink related steps, it has higher accuracy.
  • the method for specifying the second network element participating in positioning includes: the first network element or the positioning Center designation.
  • the second network element designated by the centralized unit CU or the positioning center to participate in positioning increases the flexibility of implementing the positioning method based on the CU-DU architecture.
  • the positioning request message includes at least one of the following information: an indication of the positioning method , Used to instruct the positioning center to determine the uplink positioning method to be used; the indication of the positioning measurement parameter category, used to indicate the category of the positioning measurement parameter in the uplink measurement response obtained by performing the above uplink positioning method; QoS requirements, used to indicate the implementation of uplink positioning The quality of service requirements required by the method; the target device ID is used to indicate the ID information of the target device participating in the positioning; the measurement network element list is used to indicate the list of the second network element participating in the positioning.
  • the positioning center informs the first network element of various positioning-related parameters through a positioning request message, so that the first network element can make preparations for positioning-related resource reservation and operation in advance.
  • the downlink measurement request includes: a list of second network elements participating in positioning And/or, the configuration information of the downlink reference signal of the second network element; and/or, the configuration information of the downlink beam of the second network element.
  • the first network element informs the target device through a downlink measurement request, the ID information of the second network element, and the related configuration and beam information of the downlink reference signal sent by the second network element, so that the target device can receive and measure the downlink reference signal.
  • the downlink measurement response includes: all downlink reference signal receptions measured by the target device The beam information corresponding to the power and/or the beam information corresponding to the maximum reference signal received power measured by the target device.
  • the target device performs beam selection by measuring the downlink reference signal to obtain a beam that can be used in the uplink process, and informs the first network element of related information of the beam through a downlink measurement response.
  • the uplink configuration auxiliary information includes: Configuration information and/or uplink beam configuration information.
  • the first network element informs the second network element of the beam information that can be used in the uplink process selected in the above step and the related information of the uplink reference signal sent by the target device through the uplink configuration auxiliary information.
  • the positioning method based on the CU-DU architecture further includes: After the second network element sends the uplink measurement response to the first network element, the method further includes: the first network element determines the location information of the target device based on the uplink measurement response; and the first network element sends the location information of the target device to the positioning center.
  • the positioning calculation function is performed by replacing the positioning center with the first network element, which increases the flexibility of implementing the positioning method based on the CU-DU architecture.
  • a positioning method based on the CU-DU architecture including: a positioning center determines an uplink positioning method to be used, and sends a positioning request message to a first network element of a relay network device; The third network element participating in positioning sends uplink configuration assistance information and an uplink measurement request; the third network element sends an uplink measurement response to the first network element; the first network element sends an uplink measurement response to the positioning center; the positioning center determines based on the uplink measurement response Location information of the target device.
  • the network element for uplink positioning measurement is replaced by a second network element with a third network element.
  • the third network element can receive and process weak uplink reference signals and is dedicated to positioning information measurement to perform more refined
  • the positioning measurement operation has higher positioning accuracy than the traditional positioning process.
  • the third network element participating in positioning is an independent or non-independent device deployed on the second network element.
  • the third network element may be an independent device deployed on the second network element, or it may be integrated on the second network element, which increases the selection range of the measurement network element based on the CU-DU positioning method.
  • the positioning method based on the CU-DU architecture further includes: the positioning center determines the uplink positioning method used , And after sending the positioning request message to the first network element of the relay network device, the method further includes: the first network element sends the configuration information of the downlink reference signal to the second network element designated in the relay network device to participate in positioning; A network element sends a downlink measurement request to the target device; the target device sends a downlink measurement response to the first network element.
  • a step of measuring the downlink reference signal measurement correlation is added before the uplink correlation step for beam selection. Compared with the traditional uplink positioning process, it has higher accuracy.
  • the method for specifying the second network element participating in positioning includes: Yuan or positioning center designation.
  • the second network element designated by the centralized unit CU or the positioning center to participate in positioning increases the flexibility of implementing the positioning method based on the CU-DU architecture.
  • the method for specifying a third network element participating in positioning includes : Designated by the first network element or positioning center.
  • the third network element designated by the centralized unit CU or the positioning center to participate in positioning increases the flexibility of implementing the positioning method based on the CU-DU architecture.
  • the positioning request message includes at least one of the following information : Positioning method indication, used to instruct the positioning center to determine the uplink positioning method used; indication of positioning measurement parameter category, used to indicate the positioning measurement parameter category in the uplink measurement response obtained by performing the uplink positioning method; QoS requirements, used for Indicate the service quality requirements required to perform the uplink positioning method; the target device ID is used to indicate the ID information of the target device participating in the positioning; the measurement network element list is used to indicate the list of the third network element participating in the positioning.
  • the positioning center informs the first network element of various positioning-related parameters through a positioning request message, so that the first network element can make preparations for positioning-related resource reservation and operation in advance.
  • the downlink measurement request includes: the second aspect participating in positioning The list of network elements; and/or the configuration information of the downlink reference signal of the second network element participating in positioning; and/or the configuration information of the downlink beam of the second network element participating in positioning.
  • the first network element informs the target device through a downlink measurement request, the ID information of the second network element, and the related configuration and beam information of the downlink reference signal sent by the second network element, so that the target device can receive and measure the downlink reference signal.
  • the downlink measurement response includes: all measurements measured by the target device The beam information corresponding to the received power of the downlink reference signal and/or the beam information corresponding to the maximum received power of the reference signal measured by the target device.
  • the target device performs beam selection by measuring a downlink reference signal to obtain a beam that can be used for uplink related steps, and informs the first network element of related information of the beam through a downlink measurement response.
  • the uplink configuration auxiliary information includes: Configuration information and/or uplink beam configuration information.
  • the first network element informs the third network element of the beam information that can be used for the uplink positioning measurement selected in the above steps and the related information of the uplink reference signal sent by the target device through the uplink configuration auxiliary information.
  • the third network element reports to the first network element After sending the uplink measurement response, the method further includes: the first network element determines the location information of the target device based on the uplink measurement response; and the first network element sends the location information of the target device to the positioning center.
  • the positioning calculation function is performed by replacing the positioning center with the first network element, which increases the flexibility of implementing the positioning method based on the CU-DU architecture.
  • the relay network device is a base station
  • the first network element is a centralized unit of the base station
  • the second network element is a distributed unit or Transceiving equipment used for positioning.
  • a first network device including: a receiving unit, configured to receive a positioning request message sent by a positioning center; also configured to receive an uplink measurement response sent by a second network element or a third network element; and a sending unit, It is used to send uplink configuration assistance information and an uplink measurement request to the second network element or the third network element; it is also used to send an uplink measurement response to the positioning center.
  • the first network device further includes a processing unit configured to specify a second network element participating in positioning or determine location information of the target device based on an uplink measurement response.
  • the receiving unit is further configured to receive a downlink measurement response sent by the target device; and the sending unit is also configured to Send the configuration information of the downlink reference signal to the second network element and/or send the downlink measurement request to the target device.
  • a first network device including: a receiver, configured to receive a positioning request message sent by a positioning center; also configured to receive an uplink measurement response sent by a second network element or a third network element; a transmitter, It is used to send uplink configuration assistance information and an uplink measurement request to the second network element or the third network element; it is also used to send an uplink measurement response to the positioning center.
  • the first network device further includes a processor configured to designate a second network element participating in positioning or determine location information of the target device based on an uplink measurement response.
  • the receiver is also used to receive a downlink measurement response sent by the target device; the transmitter is also used to Send the configuration information of the downlink reference signal to the second network element and/or send the downlink measurement request to the target device.
  • a second network device including: a receiving unit, configured to receive uplink configuration assistance information and an uplink measurement request sent by a first network element; and a sending unit, configured to send an uplink measurement response to the first network element.
  • the second network device further includes a processing unit configured to measure the uplink reference signal sent by the target device to obtain an uplink measurement response.
  • the receiving unit is further configured to receive configuration information of the downlink reference signal sent by the first network element;
  • the sending unit is also used to send a downlink reference signal to the target device.
  • a second network device including: a receiver, configured to receive uplink configuration assistance information and an uplink measurement request sent by a first network element; and a transmitter, configured to send an uplink measurement response to the first network element.
  • the second network device further includes a processor configured to measure an uplink reference signal sent by the target device to obtain an uplink measurement response.
  • the receiver is further configured to receive configuration information of the downlink reference signal sent by the first network element;
  • the transmitter is also used to send a downlink reference signal to the target device.
  • a target device including: a receiving unit, configured to receive a downlink measurement request sent by a first network element; also configured to receive a downlink reference signal sent by a second network element; The network element sends a downlink measurement response.
  • the target device further includes a processing unit configured to measure the downlink reference signal sent by the second network element to obtain a downlink measurement response.
  • the receiving unit is further configured to receive uplink reference signal configuration information sent by the first network element;
  • the sending unit is configured to send an uplink reference signal to the second network element or the third network element.
  • a target device including: a receiver, configured to receive a downlink measurement request sent by a first network element; also configured to receive a downlink reference signal sent by a second network element; The network element sends a downlink measurement response.
  • the target device further includes a processor configured to measure the downlink reference signal sent by the second network element to obtain a downlink measurement response.
  • the receiver is further configured to receive uplink reference signal configuration information sent by the first network element;
  • the transmitter is used to send an uplink reference signal to the second network element or the third network element.
  • a positioning management device including: a sending unit, configured to send a positioning measurement request to a first network element; and a receiving unit, configured to receive an uplink measurement response sent by the first network element or location information of a target device.
  • the positioning management device further includes a processing unit configured to determine the location information of the target device according to the uplink measurement response; Network element or third network element.
  • a positioning management device including: a transmitter for sending a positioning measurement request to a first network element; and a receiver for receiving an uplink measurement response or location information of a target device sent by the first network element.
  • the positioning management device further includes a processor, configured to determine the location information of the target device according to the uplink measurement response; and also to specify the second part of the positioning Network element or third network element.
  • a computer program product containing instructions which when running on a computer, causes the computer to execute the above-mentioned first aspect and the CU-based implementation provided by any one of the possible implementations of the first aspect.
  • a computer-readable storage medium including: instructions are stored in the computer-readable storage medium; when the computer-readable storage medium implements the third aspect and any one of the third aspects, the fourth Aspects and any implementation of the fourth aspect, any implementation of the fifth and fifth aspects, any implementation of the sixth and sixth aspects, any implementation of the seventh and seventh aspects,
  • the network device When running on the network device described in the eighth aspect and any one of the eighth aspect, the ninth and the ninth aspect, the tenth and the tenth aspect, the network device Perform the positioning method based on the CU-DU architecture as described in the foregoing first aspect and any one of the implementation manners of the first aspect or the second aspect and any one of the second aspects.
  • a communication system in a thirteenth aspect, includes: a first network device, the first network device may be the foregoing third aspect and any one of its implementations or the fourth aspect and any one of its implementations At least one second network device, and the second network device is the second network device of the fifth aspect and any one of its implementation manners or the sixth aspect and any one of its implementation manners; one A target device, the target device being the target device of the seventh aspect and any one of its implementation manners or the eighth aspect and any one of the implementation manners; a positioning management device, the positioning management device being the ninth aspect and The positioning management device of any one of its implementation manners or the tenth aspect and any one of its implementation manners.
  • the device, computer storage medium, or computer program product of the positioning information reporting method provided above are all used to execute the corresponding method provided above. Therefore, the beneficial effects that can be achieved can refer to the corresponding method provided above. The beneficial effects of the method are not repeated here.
  • Fig. 1 is a schematic diagram of the structure of a 5G radio access network RAN suitable for an embodiment of the present application.
  • Fig. 2 is a communication system suitable for an embodiment of the present application.
  • Figure 3a is the main flow of the UTDOA positioning method with uplink arrival time difference.
  • Figure 3b is the basic principle of the UTDOA positioning method based on the uplink arrival time difference.
  • Fig. 4 is a flowchart of a positioning method based on the CU-DU architecture proposed in an embodiment of the application.
  • Fig. 5 is a flowchart of another positioning method based on the CU-DU architecture proposed in an embodiment of the application.
  • FIG. 6 is a flowchart of another positioning method based on the CU-DU architecture proposed in an embodiment of the application.
  • FIG. 7 is a flowchart of another positioning method based on the CU-DU architecture proposed in an embodiment of the application.
  • FIG. 8 is a flowchart of another positioning method based on the CU-DU architecture proposed in an embodiment of the application.
  • FIG. 9 is a flowchart of another positioning method based on the CU-DU architecture proposed in an embodiment of the application.
  • FIG. 10 is a schematic diagram of a possible structure of a centralized unit CU involved in an embodiment of this application.
  • FIG. 11 is a schematic diagram of a possible logical structure of a centralized unit CU involved in an embodiment of this application.
  • FIG. 12 is a schematic diagram of a possible structure of a distribution unit DU involved in an embodiment of this application.
  • FIG. 13 is a schematic diagram of a possible logical structure of a distribution unit DU involved in an embodiment of this application.
  • FIG. 14 is a schematic diagram of a possible structure of the target device involved in the foregoing embodiment provided by this application.
  • FIG. 15 is a schematic diagram of a possible logical structure of a target device involved in an embodiment of this application.
  • FIG. 16 is a schematic diagram of a possible structure of the positioning center involved in this application.
  • FIG. 17 is a schematic diagram of a possible logical structure of a positioning center involved in an embodiment of this application.
  • the positioning architecture based on the positioning center will still be adopted.
  • how to design a low-latency, high-precision positioning method based on the CU-DU architecture and how to determine the parameters required for positioning the terminal through the signaling interaction between the positioning network elements are the considerations of this application.
  • the content is also an important research direction for realizing 5G high-precision and low-latency positioning methods.
  • Fig. 1 is a schematic structural diagram of a 5G radio access network RAN applicable to an embodiment of the present application.
  • a new RAN architecture 100 is given.
  • the base station (Next Generation Node B, gNB) in the new RAN architecture 100 will be composed of a Central Unit (CU) and multiple Distributed Units (DU).
  • the centralized unit CU as a logical node in 5G gNB, mainly undertakes gNB's radio link control (Radio Link Control, RRC), service data adaptation protocol (Service Data Adaptation Protocol, SDAP), and packet data convergence protocol (Packet Data). Convergence Protocol (PDCP) layer protocols and functions.
  • RRC Radio Link Control
  • SDAP Service Data Adaptation Protocol
  • Packet Data Packet Data convergence protocol
  • PDCP Convergence Protocol
  • the distribution unit DU is mainly responsible for gNB's radio link control (Radio Link Control, RLC), media access control (Media Access Control, MAC) and port physical layer (Port Physical Layer, PHY). ) Protocol and function. Among them, some functions of DU are controlled by CU.
  • the CU and DU are defined and connected by F1 interface control plane signaling (F1 Application Protocol, F1AP).
  • F1AP Application Protocol
  • the base station can also include a radio remote unit (RRU), which consists of the baseband processing unit (Building Baseband Unit, BBU) in the radio access network architecture of the original LTE system. Part of it is moved up to the remote radio unit RRU unit. Taking into account the saving of transmission resources between RRU and DU, some physical layer functions can also be moved up to RRU for implementation.
  • Fig. 2 is a communication system suitable for the embodiment of the present application.
  • NB-IoT Narrow Band-Internet of Things
  • WLAN Wireless Local Access Network
  • 5G NR Narrow Band-Internet of Things
  • D2D device-to-device
  • a positioning system 200 includes at least network elements such as a target device 201, a base station 202, an access management function (AMF) 203, and a location management function (LMF) 204.
  • Traditional positioning systems can also include enhanced serving mobile location centre 205 (E-SMLC) and secure user plane location (SUPL) positioning platform (SUPL location platform, SLP) 206 and other networks. yuan.
  • E-SMLC 205 is used for control plane positioning
  • SLP 206 is used for user plane positioning.
  • the enhanced service mobility management center 205 and the secure user plane positioning platform 206 can have new functions and developments in 5G base stations and/or 5G next-generation base stations.
  • the positioning method and device based on the CU-DU architecture proposed in this application does not involve the improvement of the access management function AMF 203 function and signaling, so the embodiment involves the signaling of the access management function AMF
  • the interaction process is not described in detail, and its related functions and the signaling interaction process with other network elements are basically the same as in the prior art.
  • the target equipment 201 in the above positioning system 200 includes but is not limited to: User Equipment (UE), mobile station, access terminal, user unit, user station, mobile station, remote station, remote terminal, mobile equipment, terminal, Wireless communication equipment, user agent, wireless local access network (Wireless Local Access Network, WLAN) station (Station, ST), cellular phone, cordless phone, Session Initiation Protocol (SIP) phone, wireless local loop (Wireless) Local Loop (WLL) station, Personal Digital Assistant (PDA), handheld devices with wireless communication functions, computing devices, other processing devices connected to wireless modems, in-vehicle devices, wearable devices, future 5G networks Any of the mobile stations and the public land mobile network (PLMN) that will evolve in the future.
  • the target device is also called a terminal device or a terminal, which will not be described in detail below.
  • the base station 202 in the positioning system 200 includes, but is not limited to: the next-generation evolved Node B (Evolved Node base, eNB), the Radio Network Controller (RNC), the Base Station Controller (BSC), Base Transceiver Station (BTS), home base station (for example, Home Evolved NodeB, or Home Node B, HNB), NR base station (Next Generation Node B, gNB), etc.
  • Evolved Node base eNB
  • RNC Radio Network Controller
  • BSC Base Station Controller
  • BTS Base Transceiver Station
  • home base station for example, Home Evolved NodeB, or Home Node B, HNB
  • NR base station Next Generation Node B, gNB
  • Beam It is a communication resource, which can be a wide beam, a narrow beam, or other types of beams.
  • the beam forming technology can be beamforming technology or other technical means.
  • the beamforming technology may be a digital beamforming technology, an analog beamforming technology or a hybrid beamforming technology. Different beams can be considered as different resources.
  • the terminal and the network node can send the same or different information through different beams.
  • a beam can include one or more antenna ports for transmitting data channels, control channels, and sounding signals.
  • a transmit beam can refer to the distribution of signal strengths formed in different directions in space after a signal is transmitted by an antenna.
  • the receiving beam may refer to the signal strength distribution of the wireless signal received from the antenna in different directions in space.
  • the embodiment of the beam in the agreement can also be a spatial filter (Spatial Filter, SF).
  • the beam information can be identified by index information.
  • the index information can correspond to the resource identifier of the configured terminal.
  • the index information can correspond to the configured CSI-RS identity (ID) or resource, or the configured uplink sounding reference signal (Sounding Reference Signal, SRS) ID or Resources.
  • the index information may also be the index information displayed or implicitly carried by the signal or channel carried by the beam.
  • the index information may be the synchronization signal (Synchronization Signal, SS) or the physical broadcast channel (Physical Broadcast Channel, PBCH) sent by the beam. Indicates the index information of the beam.
  • the identification of the beam information may include the absolute index of the passing beam, the relative index of the beam, the logical index of the beam, the index of the antenna port corresponding to the beam, the index of the antenna port group corresponding to the beam, the time index of the downlink SS block, and the corresponding beam index.
  • Positioning protocol If there is no special statement in this application, positioning protocol generally refers to all protocols used to transmit positioning-related parameters or information. The protocol contains one or more messages used to realize the interaction of positioning parameters or information between positioning network elements . Positioning network elements include but are not limited to target equipment, base stations, positioning centers and other equipment or devices used for positioning.
  • the serving base station can also be called a serving cell, which refers to the base station or cell that establishes a connection with the target device.
  • the serving base station implements information transmission with the terminal, such as the transmission of measurement reports and the configuration of positioning parameters.
  • the description of the following embodiments may involve the serving DU, which has a similar role to the serving base station.
  • the neighboring cell base station can also be called a neighbor cell (Neighbor Cell), which refers to a base station or cell that the target device can receive the reference signal sent by the base station, but has not established a connection with the target device.
  • the neighboring cell base station is relative to the serving base station.
  • the target device can receive the signal of the neighboring cell base station, and these base stations can all be called the neighboring cell base station of the serving base station.
  • the serving base station and the neighboring cell base station may not be directly adjacent base stations.
  • the serving base station can communicate directly or indirectly with the neighboring base station through a wired or wireless connection, and the indirect communication includes transit through other devices or base stations.
  • the neighboring cell DU may be involved, and its role is similar to that of the neighboring cell base station.
  • LTE positioning center is determining positioning
  • the method then sends request information to the serving base station of the target device and instructs the serving base station to configure the sounding reference signal (SRS) resource of the target device; after receiving the request information, the base station configures the SRS resource of the target device and sends it to the positioning center (E -SMLC) reports the configuration information of the uplink sounding reference signal SRS of the target device, and the positioning center (E-SMLC) sends the uplink SRS configuration information of the target device to multiple location measurement units (location measurement units, LMUs) and requests measurement information; Multiple position measurement units LMU complete the measurement based on the uplink reference signal sent by the target device and send the measurement information to the positioning center (E-SMLC).
  • the positioning center calculates the location of the target device based on the measurement information reported by the
  • the basic principle of the above-mentioned UTDOA positioning method is shown in Figure 3b: the distance between the target device and the base station is determined based on the signal propagation time of the target device to the location measurement unit LMU on each base station, and the distance between the target device and the base station is determined according to each two base stations
  • the distance difference between the target device and the eNodeB 0 and eNodeB 1 in Figure 3b can determine a hyperbolic positioning area.
  • the distance difference between the target device and eNodeB 0 and eNodeB 1 in Figure 3b forms a hyperbola.
  • a hyperbola Determine an intersection point by two hyperbolas, and impose additional conditions (such as the eNodeB's own geographic location information) to get the exact location of the target device.
  • the base station will be composed of a centralized unit CU and multiple distributed units DU.
  • the CU-DU RAN architecture Based on the newly proposed CU-DU RAN architecture, there is currently no detailed positioning design process. How to design a low-latency and high-precision positioning method based on the CU-DU architecture needs to be solved urgently.
  • the embodiment of the application mainly studies the positioning method under the CU-DU architecture and the signaling interaction content between each network element for positioning the terminal.
  • Fig. 4 is a flowchart of a positioning method based on the CU-DU architecture proposed in an embodiment of the application.
  • Fig. 4 includes a positioning management function LMF, a centralized unit CU and at least one distribution unit DU of a base station participating in the positioning (Fig. 4 uses two distribution units DU as an example).
  • the positioning method also includes the access management function AMF.
  • the positioning management function LMF is used as the positioning center, and the positioning measurement of the target device is coordinated through the signaling interaction between the CU, the DU and the target device.
  • the positioning management function is also referred to as the positioning center, and the following uses the positioning management function to describe it. It should be understood that the positioning management function and the positioning center in this embodiment are the same, and will not be described again. The steps are as follows:
  • the positioning management function LMF sends a positioning request message to the centralized unit CU of the base station participating in positioning, where the positioning request message is used to request uplink measurement information from the CU or instruct the CU to perform positioning calculation.
  • the positioning management function needs to select an appropriate positioning method before sending a positioning request message to the centralized unit CU.
  • the location request message includes at least one or more of the following information:
  • the indication of the positioning method used to indicate the positioning method determined by the positioning management function, such as the uplink time difference of arrival (UTDOA) based on the time difference or the angle-based uplink angle of arrival positioning method (angle of arrival) , UL-AOA), in addition, it also includes other existing or new positioning methods that can be applied to this application.
  • the positioning method based on the CU-DU architecture proposed in this application does not affect the positioning method used. Limited, but to provide the CU-DU positioning architecture that can realize the selected positioning method; the positioning method instruction can be the category of the positioning method listed directly, or the index of the pre-appointed positioning method category, or other optional
  • the indication method of the positioning method category is not limited in this application;
  • the indication of the positioning measurement parameter category which is related to the positioning method selected by the positioning management function. Different positioning methods correspond to different positioning measurement parameter categories, that is, corresponding to different positioning measurement parameter category indications; for example, if the uplink arrival time difference is used For the positioning method UTDOA, the indication of the positioning measurement parameter category shall at least include the indication of the uplink arrival time of the reference signal to be measured; if the UL-AOA positioning method is used, the indication of the positioning measurement parameter category shall at least include the indication of the measurement parameter to be measured.
  • the indication of the uplink arrival angle of the reference signal; the indication of the positioning measurement parameter category can be the category of the positioning measurement parameter listed directly, or the index of each parameter category in the predetermined positioning measurement parameter, or other optional positioning measurement
  • the indication method of the parameter category is not limited in this application;
  • the above-mentioned positioning measurement parameters may include multiple types of parameters, which are a collection of measurement parameters necessary for positioning the terminal, and may be the uplink measurement information obtained by the distributed unit DU measuring the uplink reference signal, or the centralized unit CU or The location management function performs location calculation on the location information of the target device based on the uplink measurement information.
  • the centralized unit CU sends the configuration information of the downlink reference signal to the distribution unit DU participating in positioning specified by the positioning management function LMF.
  • each DU obtains a set of positioning measurement parameters by measuring the uplink reference signal; it can also come from at least two distribution units DU participating in the positioning measurement.
  • One DU obtains a set of positioning measurement parameters by measuring the uplink reference signal, and the other DU passes At least two different transmission points measure uplink reference signals to obtain two sets of positioning measurement parameters; optionally, these at least three sets of positioning measurement parameters may also come from a distribution unit DU involved in positioning measurement, and the DU passes at least three sets of positioning measurement parameters on it.
  • Three sets of positioning measurement parameters are obtained by measuring uplink reference signals at two different transmission points.
  • the transmission point is a device with a signal receiving and sending function on the distribution unit DU.
  • the purpose of measuring downlink reference signals is mainly to perform beam selection, that is, the target device measures the downlink reference signals in multiple beam directions sent by the DU during the downlink process, and uses a certain preferred beam method, such as selecting the beam with the highest received power.
  • the DU participating in the following positioning process to receive the uplink reference signal beam. Therefore, based on the above-mentioned method analysis of obtaining at least three sets of positioning measurement parameters, there may be at least one designated distribution unit DU participating in positioning.
  • the distribution unit DU participating in positioning may also be designated by the centralized unit CU. If specified by the positioning management function LMF, the positioning request message in step S401 must include a list of DUs participating in positioning and/or ID information of transmission points on the DU participating in positioning.
  • the aforementioned designated distribution unit DU includes at least one serving DU of the target device, and may also include the neighboring cell DU of the target device participating in positioning.
  • the configuration information of the downlink reference signal is mainly used to configure the distribution unit DU to send downlink reference signals in multiple beam directions.
  • the configuration information of the downlink reference signal includes at least one or more of the following, or other more configuration information for configuring the downlink reference signal:
  • the central unit CU sends a downlink measurement request to the target device.
  • the downlink measurement request is used to instruct the target device to measure downlink reference signals in multiple beam directions sent by the distribution unit DU.
  • the downlink measurement request includes at least a list of all DUs that send downlink reference signals in multiple beam directions and/or ID information of transmission points on the DU participating in positioning, as well as the downlink reference signal configuration and/or beam configuration of all the above DUs, etc. .
  • the target device sends a downlink measurement response to the centralized unit CU.
  • the downlink measurement response includes downlink measurement information obtained by the target device measuring downlink reference signals in multiple beam directions sent by the distribution unit DU.
  • the purpose of measuring downlink reference signals is mainly to perform beam selection. That is, the target device measures the downlink reference signals in multiple beam directions sent by the DU, and determines that the DU participates in the following uplink related steps in a preferred beam method.
  • the uplink reference signal beam, and the related information of the beam is reported to the centralized unit CU. Therefore, the downlink measurement information can be the beam information corresponding to the Reference Signal Receiving Power (RSRP) in multiple beam directions, or the beam information corresponding to the maximum reference signal receiving power RSRP, or other options.
  • the downlink measurement information of the preferred beam is not limited in this application. It should be noted that the RSRP refers to the average value of signal power received on all subcarriers or a symbol in the time domain in a certain symbol that carries a reference signal.
  • the centralizing unit CU After configuring the uplink reference signal for the target device, the centralizing unit CU sends uplink configuration auxiliary information to the distribution unit DU participating in the positioning, and sends an uplink measurement request.
  • the uplink configuration auxiliary information includes configuration information of the uplink reference signal and/or configuration information of the uplink beam.
  • step S402 the configuration information configuration distribution unit DU of the downlink reference signal transmits downlink reference signals in multiple beam directions.
  • the target device receives and measures the downlink reference signal sent by the distribution unit DU, and obtains measurement information of the preferred beam. For example, it can be the beam information corresponding to the received power of multiple beam direction reference signals, or the maximum reference signal received power. Beam information, etc.
  • step S404 the target device sends the optimized beam information to the central unit CU through the downlink measurement response, and the central unit CU informs the distribution unit DU through the uplink configuration assistance information, and finally uses the beam selected in the downlink step for the uplink related steps .
  • the uplink configuration assistance information and the uplink measurement request can be carried in the same message or sent in different messages.
  • the distribution unit DU participating in the positioning sends an uplink measurement response to the central unit CU after measuring the uplink reference signal sent by the target device.
  • the uplink measurement response includes uplink measurement information
  • the uplink measurement information is measurement information that is obtained by measuring the uplink reference signal and can be used to calculate the location of the target device. For example, it may be the arrival time information during UTDOA positioning, or the uplink signal arrival angle information during UL-AOA positioning, or the uplink measurement information used to calculate the position of the target device in other uplink positioning methods, which is not limited in this application.
  • the centralized unit CU After receiving the uplink measurement response reported by the distribution unit DU, the centralized unit CU sends the positioning measurement parameters to the positioning management function LMF.
  • the positioning measurement parameter may be the uplink measurement response reported by the distribution unit DU directly forwarded by the CU, or the location information of the target device calculated by the central unit CU based on the uplink measurement information in the uplink measurement response reported by the distribution unit DU. If the location management function LMF receives the reported information as an uplink measurement response directly forwarded by the CU, it calculates the location information of the target device based on the uplink measurement information in the uplink measurement response.
  • the positioning method based on the CU-DU architecture proposed in this application takes into account the need for beam management under high-frequency conditions, and adds downlink-related steps (steps S402-S407) before uplink-related steps (steps S405-S407).
  • S404 is used to perform beam selection, and the selected beam in the downlink related step can be used in the uplink related step.
  • steps S402-S404 can be omitted, and only the uplink related steps are reserved.
  • the target device transmits omnidirectionally, so there is no need to perform beam selection.
  • the downlink-related steps in the following embodiments shown in Figure 5, Figure 6, Figure 7, Figure 8, and Figure 9 can all be omitted according to the above-mentioned reasons, and only the uplink-related steps are retained, which will not be described in detail below.
  • the process of the positioning method based on the CU-DU architecture is designed, and the signaling interaction content between each network element and device is defined, which ensures the realization of the positioning technology under the CU-DU architecture.
  • the downlink related steps are added before the uplink related steps (steps S405-S407) for beam selection.
  • the traditional uplink positioning process it has higher accuracy and meets the positioning requirements of 5G with high precision and low latency.
  • Fig. 5 is a flowchart of another positioning method based on the CU-DU architecture proposed in an embodiment of the application.
  • the centralized unit CU participating in positioning has a positioning management function, which can replace the positioning management function LMF in the embodiment of FIG. 4, and simplify the positioning method flow under the CU-DU architecture.
  • the embodiment shown in 4 has a lower time delay.
  • the process of the positioning method described in Figure 5 mainly includes the following steps:
  • S501 The centralized unit CU of the base station participating in the positioning decides to position the target device.
  • the centralized unit CU selects the positioning method to be used, and specifies the distributed unit DU participating in positioning.
  • the centralized unit CU sends configuration information of the downlink reference signal to the distribution unit DU designated by it to participate in positioning.
  • step S402 in the embodiment shown in FIG. 4 that there may be at least one designated distribution unit DU participating in positioning.
  • the aforementioned designated distribution unit DU includes at least one serving DU of the target device, and may also include the neighboring cell DU of the target device participating in positioning.
  • the configuration information of the downlink reference signal is mainly used to configure the distribution unit DU to send downlink reference signals in multiple beam directions.
  • the configuration information of the downlink reference signal includes at least one or more of the following, or other more configuration information for configuring the downlink reference signal:
  • step S503 is the same as step S403, and will not be repeated here.
  • step S504 is the same as step S404, and will not be described again.
  • step S505 is the same as step S405, and will not be repeated.
  • step S506 is the same as step S406, and will not be repeated here.
  • the centralized unit CU After receiving the uplink measurement response sent by the distribution unit DU participating in the positioning, the centralized unit CU calculates the location information of the target device based on the uplink measurement response.
  • the central unit CU calculates the location information of the target device based on the uplink measurement information in the uplink measurement response reported by the distribution unit DU.
  • the above-mentioned embodiment not only designs the flow of the positioning method based on the CU-DU architecture, but also replaces the positioning management function LMF with the centralized unit CU with the positioning management function, thereby simplifying the CU-DU architecture
  • the following positioning process has a lower delay than the traditional positioning method process, and meets the positioning requirements of 5G with high precision and low delay.
  • FIG. 6 is a flowchart of another positioning method based on the CU-DU architecture proposed in an embodiment of the application. Compared with the embodiment shown in FIG. 4, the difference is that, in the embodiment shown in FIG. 4, the uplink reference signal measurement of the positioning method is completed by the distribution unit DU and reported to the positioning center. In this embodiment, the uplink reference signal measurement of the positioning method is completed by other measurement network elements.
  • the measurement network element is a device that can receive and measure uplink reference signals for positioning measurement, and may be a position measurement unit LMU or other A network element with similar measurement functions as the LMU.
  • the flow of the following embodiment is described by taking the measurement network element as the location measurement unit LMU as an example, and assumes that the LMU is an independent or non-independent device deployed on the distribution unit DU of the base station participating in positioning.
  • the positioning process of this embodiment is as follows:
  • the positioning management function LMF sends a positioning request message to the centralized unit CU of the base station participating in positioning, where the positioning request message is used to request uplink measurement information from the CU or instruct the CU to perform positioning calculation.
  • the positioning management function needs to select an appropriate positioning method before sending a positioning request message to the centralized unit CU.
  • the location request message includes at least one or more of the following information:
  • the indication of the positioning method used to indicate the positioning method determined by the positioning management function, such as the uplink time difference of arrival (UTDOA) based on the time difference or the angle-based uplink angle of arrival positioning method (angle of arrival) , UL-AOA), in addition, it also includes other existing or new positioning methods that can be applied to this application.
  • the positioning method based on the CU-DU architecture proposed in this application does not affect the positioning method used. Limited, but to provide the CU-DU positioning architecture that can realize the selected positioning method; the positioning method instruction can be the category of the positioning method listed directly, or the index of the pre-appointed positioning method category, or other optional
  • the indication method of the positioning method category is not limited in this application;
  • the indication of the positioning measurement parameter category which is related to the positioning method selected by the positioning management function. Different positioning methods correspond to different positioning measurement parameter categories, that is, corresponding to different positioning measurement parameter category indications; for example, if the uplink arrival time difference is used For the positioning method UTDOA, the indication of the positioning measurement parameter category shall at least include the indication of the uplink arrival time of the reference signal to be measured; if the UL-AOA positioning method is used, the indication of the positioning measurement parameter category shall at least include the indication of the measurement parameter to be measured.
  • the indication of the uplink arrival angle of the reference signal; the indication of the positioning measurement parameter category can be the category of the positioning measurement parameter listed directly, or the index of each parameter category in the predetermined positioning measurement parameter, or other optional positioning measurement
  • the indication method of the parameter category is not limited in this application;
  • the positioning request message also includes a list of measurement network elements participating in positioning.
  • the measurement network element is a device used for positioning measurement that can receive and measure uplink reference signals. It can be a position measurement unit LMU, or 5G and other wireless network elements with similar functions to the position measurement unit.
  • the above-mentioned positioning measurement parameters may include multiple types of parameters, which are a collection of measurement parameters necessary for positioning the terminal, and may be the uplink measurement information obtained by the distributed unit DU measuring the uplink reference signal, or the centralized unit CU or The location management function performs location calculation on the location information of the target device based on the uplink measurement information.
  • step S602 is the same as step S402, and will not be repeated here.
  • step S603 Same as step S403, and will not be repeated here.
  • step S604 is the same as step S404, and will not be repeated here.
  • the central unit CU After configuring the uplink reference signal for the target device, the central unit CU sends the uplink configuration auxiliary information to the position measurement unit LMU participating in the positioning, and sends an uplink measurement request.
  • the uplink configuration auxiliary information includes configuration information of the uplink reference signal and/or configuration information of the uplink beam.
  • step S602 the configuration information configuration distribution unit DU of the downlink reference signal transmits downlink reference signals in multiple beam directions.
  • the target device receives the downlink reference signal sent by the distribution unit DU and measures it to obtain the measurement information of the preferred beam. For example, it may be the beam information corresponding to the received power of multiple beam direction reference signals, or the maximum reference signal received power. Beam information, etc.
  • step S604 the target device sends the optimized beam information to the central unit CU through the downlink measurement response, and the central unit CU informs the position measurement unit LMU through the uplink configuration assistance information, and finally uses the beam selected in steps S602-S604 for uplink Related steps.
  • the uplink configuration auxiliary information and the uplink measurement request can be carried in the same message or sent in different messages.
  • these at least three sets of positioning measurement parameters can come from at least three DUs participating in positioning measurement.
  • the position measurement unit LMU on each DU obtains a set of positioning measurement parameters by measuring the uplink reference signal; it can also come from the position measurement unit LMU on at least two DUs participating in the positioning measurement, and the LMU on one DU passes Measure the uplink reference signal to obtain a set of positioning measurement parameters, and another DU obtains two sets of positioning measurement parameters through at least two different LMUs on the uplink reference signal; optionally, these at least three sets of positioning measurement parameters can also come from participating uplinks Multiple measurement units LMUs on one DU for positioning measurement, three different LMUs on the DU measure at least three sets of positioning measurement parameters.
  • steps S602-S604 is mainly to perform beam selection, that is, the target device measures the downlink reference signals in multiple beam directions sent by the distribution unit DU during the downlink process, and uses a certain preferred beam method, for example, selects the maximum received power
  • the beam is used as the beam for LMU to receive the uplink reference signal in the following positioning process. Therefore, based on the above-mentioned method analysis of obtaining at least three sets of positioning measurement parameters, there may be at least one designated DU participating in positioning.
  • the position measurement unit LMU participating in the positioning After measuring the uplink reference signal sent by the target device, the position measurement unit LMU participating in the positioning sends an uplink measurement response to the central unit CU.
  • the uplink measurement response includes uplink measurement information
  • the uplink measurement information is measurement information that is obtained by measuring the uplink reference signal and can be used to calculate the location of the target device. For example, it may be the arrival time information during UTDOA positioning, or the uplink signal arrival angle information during UL-AOA positioning, or the uplink measurement information used to calculate the position of the target device in other uplink positioning methods, which is not limited in this application.
  • the centralized unit CU After receiving the uplink measurement response reported by the location measurement unit LMU, the centralized unit CU sends the location measurement parameters to the location management function LMF.
  • the positioning measurement parameter can be either the uplink measurement response reported by the location measurement unit LMU directly forwarded by the CU, or the location information of the target device calculated by the centralized unit CU based on the uplink measurement information in the uplink measurement response reported by the location measurement unit LMU . If the location management function LMF receives and reports the uplink measurement information directly forwarded by the CU, it calculates the location information of the target device based on the uplink measurement information in the uplink measurement response.
  • the above-mentioned embodiment replaces the network element for positioning measurement from the distribution unit DU with other measurement network elements, that is, the position measurement unit LMU or other used for positioning measurement that can receive uplink reference signals.
  • measurement equipment which can receive and process weak uplink reference signals, is dedicated to positioning information measurement, and performs more refined positioning measurement operations. Compared with the traditional positioning process, it has higher positioning accuracy and meets 5G high precision, Low-latency positioning requirements.
  • the embodiments of FIG. 5 and FIG. 6 can be combined to form a new embodiment. That is, the positioning management function is completed by the centralized unit CU of the base station participating in the positioning, and the uplink positioning measurement is completed by other measurement network elements, such as the position measurement unit LMU, or other equipment used for positioning measurement that can receive and measure uplink reference signals.
  • the centralized unit CU determines the positioning method to be used, and specifies the measurement network element used for positioning measurement.
  • the positioning method flow based on the CU-DU architecture is designed, and the positioning management function LMF is replaced by the centralized unit CU with the positioning management function, which simplifies the positioning process under the CU-DU architecture, compared with the traditional positioning
  • the method process has a lower time delay; and the measurement network element can receive and process weak uplink reference signals, dedicated to positioning information measurement, perform more refined positioning measurement operations, and have higher positioning than traditional positioning processes Accuracy meets the positioning requirements of 5G with high precision and low latency.
  • FIG. 7 is a flowchart of another positioning method based on the CU-DU architecture proposed by an embodiment of the application, which is basically the same as the positioning method shown in FIG. 6. The difference is that, in this embodiment, there is no protocol interface between the centralized unit CU and the measurement network element, and the information sent by the CU to the measurement network element needs to be forwarded by the location management function LMF.
  • the measurement network element is a device used for positioning measurement that can receive and measure the uplink reference signal, and can be a position measurement unit LMU or other network elements with similar measurement functions as the LMU.
  • the flow of the following embodiment is described by taking the measurement network element as the location measurement unit LMU as an example, and assumes that the LMU is an independent or non-independent device deployed on the distribution unit DU of the base station participating in positioning. There is no difference between the centralized unit CU and the LMU. There is a protocol interface, and the information sent by the CU to the LMU needs to be forwarded by the location management function LMF.
  • the positioning process of this embodiment is as follows:
  • step S701 Same as step S601, and will not be repeated here.
  • step S702 is the same as step S602, and will not be repeated.
  • step S703 Same as step S603, and will not be repeated here.
  • step S704 Same as step S604, and will not be repeated here.
  • the central unit CU After configuring the uplink reference signal on the target device, the central unit CU sends the uplink configuration auxiliary information to the positioning management function LMF.
  • the uplink configuration auxiliary information includes the configuration of the uplink reference signal and/or the configuration of the uplink beam.
  • the location management function LMF sends uplink configuration assistance information to the location measurement unit LMU participating in the location, and sends an uplink measurement request.
  • the uplink configuration auxiliary information includes configuration information of the uplink reference signal and/or configuration information of the uplink beam.
  • the uplink configuration auxiliary information and the uplink measurement request can be carried in the same message or sent in different messages.
  • the position measurement unit LMU participating in the positioning After measuring the uplink reference signal sent by the target device, the position measurement unit LMU participating in the positioning sends an uplink measurement response to the positioning management function LMF.
  • the positioning management function LMF determines the position of the target device based on the received uplink measurement response.
  • the uplink measurement response includes uplink measurement information
  • the uplink measurement information is measurement information obtained by measuring the uplink reference signal and can be used to calculate the location of the target device. For example, it may be the arrival time information during UTDOA positioning, or the uplink signal arrival angle information during UL-AOA positioning, or the uplink measurement information used to calculate the position of the target device in other uplink positioning methods, which is not limited in this application.
  • the location management function LMF calculates the location of the target device based on the uplink measurement information in the uplink measurement response sent by the location measurement unit LMU.
  • the above-mentioned embodiment does not have a protocol interface between the centralized unit CU and the measurement network element, and the positioning management function LMF forwards the information sent by the centralized unit CU to the measurement network element, which makes up for some In the system, when there is no protocol interface between the centralized unit CU and the measurement network element, the problem of a complete positioning process under the CU-DU architecture cannot be realized.
  • FIG. 8 is a flowchart of another positioning method based on the CU-DU architecture proposed by an embodiment of the application, which is basically the same as the positioning method shown in FIG. 6. The difference lies in that, in this embodiment, the measurement network element (take the position measurement unit LMU as an example) is an independent or non-independent device deployed on the centralized unit CU of the base station participating in positioning.
  • the positioning process of the embodiment shown in FIG. 8 is as follows:
  • step S801 is the same as step S601, and will not be repeated.
  • step S802 is the same as step S602, and will not be repeated.
  • step S803 Same as step S603, and will not be repeated here.
  • step S804 is the same as step S604, and will not be repeated here.
  • the centralized unit CU After configuring the uplink reference signal for the target device, the centralized unit CU sends the uplink configuration auxiliary information to the position measurement unit LMU participating in the positioning, and the list of the distribution unit DU participating in the positioning, and/or the transmission point of the DU participating in the positioning ID information, and send an uplink measurement request.
  • the uplink configuration auxiliary information includes configuration information of the uplink reference signal and/or configuration information of the uplink beam.
  • the target device sends the optimized beam information to the centralized unit CU through the downlink measurement response, and the centralized unit CU informs the position measurement unit LMU through the uplink configuration auxiliary information, and the LMU informs the distribution of participating positioning through the uplink configuration auxiliary information
  • the unit DU finally uses the beam selected in steps S802-S804 for uplink related steps.
  • the uplink configuration auxiliary information, the list of the distribution unit DU participating in the positioning, and/or the ID information of the transmission point on the DU participating in the positioning, and the uplink measurement request may be carried in the same message or sent in different messages.
  • the position measurement unit LMU participating in the positioning sends uplink configuration auxiliary information to the distribution unit DU participating in the positioning, and sends an uplink measurement request.
  • step S402 in the embodiment shown in FIG. 4 that there may be at least one designated distribution unit DU participating in positioning.
  • the distribution unit DU participating in the positioning sends an uplink measurement response to the position measurement unit LMU after measuring the uplink reference signal sent by the target device.
  • the uplink measurement response includes uplink measurement information
  • the uplink measurement information is measurement information obtained by measuring the uplink reference signal and can be used to calculate the location of the target device. For example, it may be the arrival time information during UTDOA positioning, or the uplink signal arrival angle information during UL-AOA positioning, or the uplink measurement information used to calculate the position of the target device in other uplink positioning methods, which is not limited in this application.
  • the LMU is an independent or non-independent device deployed on the centralized unit CU. It no longer performs the function of uplink positioning measurement. After the distributed unit DU performs uplink positioning measurement, it sends an uplink measurement response. To the LMU, after the LMU does not or selectively performs some data processing, the uplink measurement response is sent to the centralized unit CU through the protocol interface, and finally reported to the positioning management function LMF.
  • the position measurement unit LMU participating in the positioning sends an uplink measurement response to the central unit CU.
  • the centralized unit CU After receiving the uplink measurement response reported by the location measurement unit LMU, the centralized unit CU sends the location measurement parameters to the location management function LMF.
  • the positioning measurement parameter can be either the uplink measurement response reported by the location measurement unit LMU directly forwarded by the CU, or the location information of the target device calculated by the centralized unit CU based on the uplink measurement information in the uplink measurement response reported by the location measurement unit LMU . If the location management function LMF receives and reports the uplink measurement information directly forwarded by the CU, it calculates the location information of the target device based on the uplink measurement information in the uplink measurement response.
  • the above-mentioned embodiment is an independent or non-independent device deployed on the centralized unit CU instead of the distributed unit DU, providing another possible CU-DU positioning process.
  • the measurement network element on the centralized unit CU can receive and process weak uplink reference signals, dedicated to positioning information measurement, and perform more refined positioning measurement operations.
  • FIG. 9 is a flowchart of another positioning method based on the CU-DU architecture proposed by an embodiment of the present application, which is basically the same as the positioning method shown in FIG. 8. The difference is that, in this embodiment, there is no protocol interface between the centralized unit CU and the measurement network element, and the information sent by the CU to the measurement network element needs to be forwarded by the location management function LMF.
  • the measurement network element takes the position measurement unit as an example for description, and the positioning process is as follows:
  • step S901 is the same as step S801, and will not be repeated here.
  • step S902 is the same as step S802, and will not be repeated here.
  • step S903 Same as step S803, and will not be repeated here.
  • step S904 is the same as step S804, and will not be repeated here.
  • the central unit CU After configuring the uplink reference signal for the target device, the central unit CU sends the uplink configuration auxiliary information to the positioning management function LMF.
  • the uplink configuration auxiliary information includes the configuration of the uplink reference signal and/or the configuration of the uplink beam.
  • the positioning management function LMF sends uplink configuration assistance information, the list of the distribution unit DU participating in the positioning and/or the ID information of the transmission point on the DU participating in the positioning to the position measurement unit LMU participating in the positioning, and sends an uplink measurement request.
  • the uplink configuration auxiliary information includes configuration information of the uplink reference signal and/or configuration information of the uplink beam.
  • the uplink configuration auxiliary information, the list of the distribution unit DU participating in the positioning, and/or the ID information of the transmission point on the DU participating in the positioning, and the uplink measurement request may be carried in the same message or sent in different messages.
  • the location measurement unit LMU sends uplink configuration assistance information to the distribution unit DU participating in positioning, and sends an uplink measurement request.
  • the target device sends the optimized beam information to the centralized unit CU through the downlink measurement response, and the centralized unit CU informs the LMF through the uplink configuration auxiliary information.
  • the LMF forwards the uplink configuration auxiliary information to the LMU, and the LMU forwards it to the distribution
  • the unit DU finally uses the beams selected in steps S902-S904 for uplink related steps.
  • step S402 it can be known from step S402 in the embodiment shown in FIG. 4 that there may be at least one distribution unit DU participating in positioning.
  • the distribution unit DU participating in the positioning completes the measurement of the uplink reference signal sent by the target device, and sends the uplink measurement response to the position measurement unit LMU.
  • the LMU is an independent or non-independent device deployed on the centralized unit CU. It no longer performs the function of uplink positioning measurement. After the distributed unit DU performs uplink positioning measurement, it sends an uplink measurement response. To the LMU, the LMU does not or selectively does some data processing, and then reports the uplink measurement response to the location management function LMF.
  • the location measurement unit LMU reports the uplink measurement response to the location management function LMF.
  • the location management function LMF determines the location of the target device according to the reported uplink measurement response.
  • the location management function LMF calculates the location of the target device based on the uplink measurement information in the uplink measurement response forwarded by the location measurement unit LMU.
  • the above embodiment does not have a protocol interface between the centralized unit CU and the measurement network element.
  • the location management function LMF forwards the information sent by the CU to the measurement network element, which can be deployed in the centralized unit.
  • the measurement network element on the CU selectively performs data processing on the uplink measurement information, which also makes up for the inability to achieve complete positioning under the CU-DU architecture when there is no protocol interface between the CU and the measurement network element in some systems Process issues.
  • the positioning methods based on the CU-DU architecture disclosed in all the above embodiments of this application consider the need for beam management under high frequency conditions, and add downlink related steps (such as S402-S407) before uplink related steps (such as S405-S407).
  • S404 is used to perform beam selection, and the selected beam in the downlink related step can be used in the uplink related step.
  • the downlink-related steps (such as S402-S404, S602-S604, etc.) in all the above embodiments can be omitted, and only the uplink-related steps are retained. For example, in some low-frequency situations, the target device is all To send, so there is no need for beam selection.
  • the downlink-related steps use the beam sent by the distribution unit DU as the object of beam selection in the downlink-related step, and use the selected beam for the uplink
  • the uplink receiving beam of the network element or the distribution unit is measured.
  • the centralized unit or the positioning management function may specify the positioning transceiver equipment involved in positioning, and use the beam sent by the positioning transceiver as the target of the beam selection in the downlink-related steps.
  • the selected beam is used to locate the uplink receiving beam of the transceiver device or the distribution unit in the uplink related step.
  • the positioning transceiver device refers to a device that is different from a distribution unit and is dedicated to positioning measurement, and can send downlink reference signals, and receive and measure uplink reference signals.
  • the positioning transceiver device can be deployed on a distribution unit or separately.
  • the downlink related steps based on beam selection of the positioning transceiver can be combined with the uplink related steps in all the above embodiments to form a new embodiment suitable for this application, which also belongs to the protection scope of this application. That is, the downlink related step selects the beam sent by the positioning transceiver device as the uplink receiving beam of the uplink related step, and the uplink related step uses the positioning transceiver or distribution unit to perform positioning measurement.
  • a positioning transceiver device is used to replace the distribution unit DU or measurement network element in all the foregoing embodiments.
  • each network element such as the distributed unit DU, the centralized unit CU, and the positioning management function LMF (or positioning center)
  • LMF positioning management function
  • each network element includes hardware structures and/or software modules corresponding to each function in order to realize the above functions.
  • 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 realize the described functions, but this realization should not be considered as going beyond the protection scope of this application.
  • the embodiment of the present application can divide the network elements such as the distribution unit DU, the centralized unit CU, the target device, and the positioning management function into functional modules according to the above method examples. For example, it can be divided into each functional module, or two or two The above functions are integrated in a 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.
  • the functional modules of the distributed unit DU and the centralized unit CU in this application do not include all the functional modules of the base station, but only include the functional modules related to this application, target equipment, positioning management functions, measurement network elements, etc. The same is true for other network elements, so I won't repeat them.
  • FIG. 10 is a schematic diagram of a possible structure of a centralized unit CU involved in an embodiment of this application.
  • the first network device related to the centralized unit CU includes: a sending unit 1001 and a receiving unit 1003.
  • the sending unit 1001 is used to support the first network device to perform steps S402, S403, S405, and S407 in FIG. 4, steps S502, S503, and S505 in FIG. 5, and steps S602, S603, S605, and S607 in FIG. 6 , Steps S702, S703, S705 in FIG. 7, steps S802, S803, S805, S809 in FIG. 8, steps S902, S903, and S905 in FIG.
  • the unit 1003 is used to support the first network device to perform steps S401, S404, and S406 in Fig. 4, steps S504 and S506 in Fig. 5, steps S601, S604, and S606 in Fig. 6, and steps S701 and S704 in Fig. 7 , Steps S801, S804, and S808 in FIG. 8, steps S901 and S904 in FIG. 9, and/or other technical processes described herein.
  • the first network device may also include a processing unit 1002 for supporting the first network device to perform step S402 in FIG. 4, S502 in FIG. 5, S602 in FIG. 6, S702 in FIG. 7, S802 in FIG. 8, and S902 in FIG. Specify the distribution unit DU and/or measurement network element participating in positioning; or support the first network device to perform step S405 in FIG. 4, S505 in FIG. 5, S605 in FIG. 6, S705 in FIG. 7, S805 in FIG. Configure the uplink reference signal for the target device in S905 in 9; or to support the first network device to perform the positioning management function in the embodiment of FIG.
  • a processing unit 1002 for supporting the first network device to perform step S402 in FIG. 4, S502 in FIG. 5, S602 in FIG. 6, S702 in FIG. 7, S802 in FIG. 8, and S902 in FIG. Specify the distribution unit DU and/or measurement network element participating in positioning; or support the first network device to perform step S405 in FIG.
  • step S407 in Figure 4 when the centralized unit performs the positioning management function in step S501; or to support the first
  • the network device executes step S407 in Figure 4, S507 in Figure 5, S607 in Figure 6, and S809 in Figure 8 to calculate the location information of the target device; or Figure 4, Figure 5, Figure 6, Figure 7, Figure 8 and Figure 9
  • the aforementioned sending unit 1001 may be a transmitter
  • the receiving unit 1003 may be a receiver
  • the transmitter and receiver are integrated in the communication unit to form a communication interface.
  • FIG. 11 is a schematic diagram of a possible logical structure of a centralized unit CU involved in an embodiment of this application.
  • the first network device related to the central unit CU includes a processor 1102.
  • the processor 1102 is used to control and manage the actions of the first network device.
  • the processor 1102 is used to support the first network device to execute Figure 4, Figure 5, Figure 6, and Figure 6 in the foregoing embodiment.
  • the distribution unit DU and/or the measurement network element designated in Figure 7, Figure 8, and Figure 9 to participate in positioning, or configure the uplink reference signal for the target device, or calculate the location information of the target device, or support the first network device to perform Figure 5 shows the selection of the positioning method when the centralized unit performs the positioning management function, and the processing of the received and sent messages in Figures 4, 5, 6, 7, 7, 8, and 9.
  • the first network device may further include: a memory 1101 and a communication interface 1103; the processor 1102, the communication interface 1103, and the memory 1101 may be connected to each other or through the bus 1104.
  • the communication interface 1103 is used to support the first network device to communicate
  • the memory 1101 is used to store the program code and data of the first network device.
  • the processor 1102 calls the code stored in the memory 1101 for control and management.
  • the memory 1101 may or may not be coupled with the processor.
  • the communication interface 1103 is used to realize the control and management of the receiving and sending actions performed by the first network device in Figure 4, Figure 5, Figure 6, Figure 7, Figure 8 and Figure 9, and the received or sent message is processed by the processor 1102 .
  • the processor 1102 may be a central processing unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of this application.
  • the processor may also be a combination that implements computing functions, for example, a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and so on.
  • the bus 1104 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus or the like. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, only one thick line is used to represent in FIG. 11, but it does not mean that there is only one bus or one type of bus.
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • the aforementioned processor 1102, memory 1101, and communication interface 1103 may also be integrated in an application specific integrated circuit, for example, a processing chip or a processing circuit.
  • the communication interface 1103 may be a communication interface including wireless transmission and reception, or may be an interface for inputting digital signals after other processing circuits process the received wireless signals.
  • first network devices 1000 and 1100 may also be used to perform other steps and/or operations of the centralized unit CU in the foregoing embodiment, which is not repeated here for brevity.
  • the structure of the first network device shown in FIG. 10 and FIG. 11 does not constitute a limitation on the first network device, and may include more or fewer components than shown, or a combination of some components, or a different component arrangement.
  • FIG. 12 is a schematic diagram of a possible structure of a distribution unit DU involved in an embodiment of this application.
  • the second network device related to the distribution unit DU includes: a sending unit 1201 and a receiving unit 1203.
  • the sending unit 1201 is used to support the second network device to perform steps S402 and S406 in FIG. 4, steps S502 and S506 in FIG. 5, step S602 in FIG. 6, step S702 in FIG. 7, and step S702 in FIG. S802, S807, steps S902, S908 in FIG. 9, and/or other technical processes described herein;
  • the receiving unit 1203 is used to support the second network device to perform S402, S405 in FIG. 4, and S502 in FIG. 5 , S505, S602 in FIG. 6, S702 in FIG. 7, S802 and S806 in FIG. 8, S902 and S907 in FIG. 9, and/or other technical processes described herein.
  • the second network device may also include a processing unit 1202 for supporting the second network device to perform the foregoing method embodiments, in step S406 in FIG. 4, step S506 in FIG. 5, step S807 in FIG. 8, and step S908 in FIG.
  • the unit DU performs uplink reference signal measurement, etc., and/or is used in other technical processes described herein.
  • the aforementioned sending unit 1201 may be a transmitter
  • the receiving unit 1203 may be a receiver
  • the transmitter and receiver are integrated in the communication unit to form a communication interface.
  • FIG. 13 is a schematic diagram of a possible logical structure of a distribution unit DU involved in an embodiment of this application.
  • the second network device related to the distribution unit DU includes a processor 1302.
  • the processor 1302 is used to control and manage the actions of the second network device.
  • the processor 1302 is used to support the second network device to perform steps S406 and 5 in FIG. 4 in the foregoing embodiment.
  • step S506, step S807 in FIG. 8, and step S908 in FIG. 9 the distribution unit DU performs uplink reference signal measurement, etc., and/or is used for other technical processes described herein.
  • the second network device may further include: a memory 1301 and a communication interface 1303; the processor 1302, the communication interface 1303, and the memory 1301 may be connected to each other or through the bus 1304.
  • the communication interface 1303 is used to support the second network device to communicate
  • the memory 1301 is used to store the program code and data of the second network device.
  • the processor 1302 calls the code stored in the memory 1301 for control and management.
  • the memory 1301 may or may not be coupled with the processor.
  • the communication interface 1303 is used to realize the control and management of the receiving and sending actions performed by the second network device in Figure 4, Figure 5, Figure 6, Figure 7, Figure 8 and Figure 9, and the message received or sent is processed by the processor 1302 .
  • the processor 1302 may be a central processing unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of this application.
  • the processor may also be a combination that implements computing functions, for example, a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and so on.
  • the bus 1304 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus or the like. The bus can be divided into address bus, data bus, control bus, etc. For ease of presentation, only one thick line is used in FIG. 13, but it does not mean that there is only one bus or one type of bus.
  • the aforementioned processor 1302, memory 1301, and communication interface 1303 may also be integrated in an application specific integrated circuit, for example, a processing chip or a processing circuit.
  • the communication interface 1303 may be a communication interface including wireless transmission and reception, or may be an interface for inputting digital signals after processing the received wireless signals through other processing circuits.
  • the second network devices 1200 and 1300 may also be used to perform other steps and/or operations of the distribution unit DU in the foregoing embodiment, which is not repeated here for brevity.
  • the structure of the second network device shown in FIG. 12 and FIG. 13 does not constitute a limitation on the second network device, and may include more or less components than shown, or a combination of some components, or a different component arrangement.
  • the embodiment of the present application also includes a measurement network element having a measurement function similar to the distribution unit DU, for example, a location measurement unit LMU, which may be deployed in a centralized unit Independent or dependent equipment on CU or distributed unit DU.
  • the device for measuring the network element can be used to perform the steps and/or operations of measuring the uplink reference signal in all the foregoing embodiments, forwarding the uplink configuration auxiliary information or forwarding the uplink measurement response, and the device for measuring the network element can be
  • the related units and modules of the distribution units in the above-mentioned second network devices 1200 and 1300 are used for uplink positioning measurement, which will not be repeated here.
  • FIG. 14 is a schematic diagram of a possible structure of a target device involved in an embodiment of this application.
  • the target device includes: a receiving unit 1401, a processing unit 1402, and a sending unit 1403.
  • the receiving unit 1401 is used to support the target device to perform step S403 in FIG. 4, or step S503 in FIG. 5, or step S603 in FIG. 6, or step S703 in FIG. 7, or step S803 in FIG. 8, or Step S903 in 9 and/or used in other technical processes described herein;
  • the processing unit 1402 is used to support the target device to execute step S404 in FIG. 4, step S504 in FIG. 5, step S604 in FIG. 6, and step S604 in FIG.
  • step S804 in step S804 in Figure 9 or the processing of receiving and sending messages in Figure 4, Figure 5, Figure 6, Figure 7, Figure 8 and Figure 9, and/or used in this article Description of other technical processes; sending unit 1403, used to support the target device to perform S404, S406 in Figure 4, or S504, S506 in Figure 5, or S604, S606 in Figure 6, or S704, S707 in Figure 7, or Figure 8 S804, S807, or S904, S908 in FIG. 9 in the downlink measurement response or uplink reference signal transmission, and/or used in other technical processes described herein.
  • the foregoing receiving unit 1401 may be a receiver, and the sending unit 1403 may be a transmitter, and the receiver and transmitter are integrated in the communication unit to form a communication interface.
  • FIG. 15 is a schematic diagram of a possible logical structure of a target device involved in an embodiment of this application.
  • the target device includes a processor 1502.
  • the processor 1502 is used to control and manage the actions of the target device.
  • the processor 1502 is used to support the target device to execute step S404 in FIG. 4 and step S504 in FIG. 5 in the foregoing embodiment.
  • the target device may further include: a memory 1501 and a communication interface 1503; the processor 1502, the communication interface 1503, and the memory 1501 may be connected to each other or through a bus 1504.
  • the communication interface 1503 is used to support the target device to communicate, and the memory 1501 is used to store the program code and data of the target device.
  • the processor 1502 calls the code stored in the memory 1501 for control and management.
  • the memory 1501 may or may not be coupled with the processor.
  • the communication interface 1503 is used to realize the control and management of the receiving and sending actions performed by the target device in FIG. 4, FIG. 5, FIG. 6, FIG. 7, FIG. 8 and FIG. 9, and the received or sent message is processed by the processor 1502.
  • the processor 1502 may be a central processing unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of this application.
  • the processor may also be a combination that implements computing functions, for example, a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and so on.
  • the bus 1504 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus.
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • the aforementioned processor 1502, memory 1501, and communication interface 1503 may also be integrated in an application specific integrated circuit, such as a processing chip, or a processing circuit.
  • the communication interface 1503 may be a communication interface including wireless transmission and reception, or may be an interface for inputting digital signals after other processing circuits process the received wireless signals.
  • target devices 1400 and 1500 may also be used to perform other steps and/or operations of the target device in the foregoing embodiment, and for the sake of brevity, details are not described here.
  • the structure of the target device shown in FIG. 14 and FIG. 15 does not constitute a limitation on the target device, and may include more or fewer components than shown, or a combination of some components, or a different component arrangement.
  • FIG. 16 is a schematic diagram of a possible structure of a positioning center involved in an embodiment of this application.
  • the positioning center is the positioning management function LMF.
  • the positioning management equipment related to the positioning center includes a sending unit 1601 and a receiving unit 1603.
  • the sending unit 1601 is used to support the positioning management device to perform S401 in FIG. 4, or S601 in FIG. 6, or S701 and S706 in FIG. 7, or S801 in FIG. 8, or S901 and S906 in FIG. 9, And/or used in other technical processes described herein;
  • the receiving unit 1603 is used to support the positioning management device to perform S407 in FIG. 4, or S607 in FIG. 6, or S705, S707 in FIG. 7, or S707 in FIG. S809, or S905, S909 in FIG. 9, and/or other technical processes described herein.
  • the positioning management device may further include a processing unit 1602 for supporting the positioning management device to perform the positioning management function in the foregoing method embodiment, S401 in the embodiment of FIG. 4, or S601 in the embodiment of FIG. 6, or in the embodiment of FIG. S701 in the embodiment of FIG. 8, or S801 in the embodiment of FIG. 8, or selection of the positioning method in the embodiment of S901 in FIG. 9; also used to execute S402 in the embodiment of FIG. 4, or S602 in the embodiment of FIG. 6, or S702 in the embodiment 7 or S802 in the embodiment in FIG. 8, or S902 in the embodiment in FIG. 9 is used to specify the distribution unit DU or measurement network element participating in positioning; it is also used to perform S407, S407 in the embodiment in FIG.
  • S607 in the embodiment of Fig. 6, S707 in the embodiment of Fig. 7, S809 in the embodiment of Fig. 8, and S909 in the embodiment of Fig. 9 calculate the location information of the target device according to the reported uplink measurement response, and/or use Other technical processes described in this article.
  • the aforementioned sending unit 1601 may be a transmitter
  • the receiving unit 1603 may be a receiver
  • the receiver and the transmitter are integrated in the communication unit to form a communication interface.
  • FIG. 17 is a schematic diagram of a possible logical structure of a positioning center involved in an embodiment of this application.
  • the positioning management device related to the positioning center includes a processor 1702.
  • the processor 1702 is used to control and manage the actions of the positioning management device.
  • the processor 1702 is used to support the positioning management device to execute the sending unit 1701, the receiving unit 1703, and the processing unit 1702 in the foregoing embodiment.
  • the location management device may further include: a memory 1701 and a communication interface 1703; the processor 1702, the communication interface 1703, and the memory 1701 may be connected to each other or through a bus 1704.
  • the communication interface 1703 is used to support the positioning management device to communicate
  • the memory 1701 is used to store program codes and data of the positioning center.
  • the processor 1702 calls the code stored in the memory 1701 for control and management.
  • the memory 1701 may or may not be coupled with the processor.
  • the communication interface 1703 is used to realize the control and management of receiving and sending actions performed by the positioning management function in FIG. 4, or FIG. 6, or FIG. 7, or FIG. 8 and FIG. 9, and the received or sent messages are processed by the processor 1702.
  • the processor 1702 may be a central processing unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of this application.
  • the processor may also be a combination that implements computing functions, for example, a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and so on.
  • the bus 1704 may be a Peripheral Component Interconnect (PCI) bus or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, etc.
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • the aforementioned processor 1702, memory 1701, and communication interface 1703 may also be integrated in an application specific integrated circuit, such as a processing chip, or a processing circuit.
  • the communication interface 1703 may be a communication interface including wireless transmission and reception, or may be an interface for inputting digital signals after processing received wireless signals through other processing circuits.
  • the positioning management devices 1600 and 1700 may also be used to perform other steps and/or operations of the positioning management function LMF in the foregoing embodiment, which is not repeated here for brevity.
  • the structure of the location management device shown in FIG. 16 and FIG. 17 does not constitute a limitation on the location management device, and may include more or less components than shown, or a combination of some components, or a different component arrangement.
  • a readable storage medium stores computer execution instructions.
  • a device may be a single-chip microcomputer, a chip, etc.
  • a processor executes Figure 4 and Figure 5 , Figure 6, Figure 7, Figure 8 or Figure 9 based on the CU-DU architecture positioning method in the centralized unit CU, distributed unit DU, target device or positioning management function execution steps, read the computer execution instructions in the storage medium.
  • the aforementioned readable storage medium may include: U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk and other media that can store program codes.
  • a computer program product includes computer-executable instructions stored in a computer-readable storage medium; at least one processor of the device can be accessed from a computer Read the storage medium to read the computer-executed instruction, and at least one processor executes the computer-executed instruction to make the device implement the positioning method based on the CU-DU architecture provided in FIG. 4, FIG. 5, FIG. 6, FIG. 7, FIG. 8 or FIG.
  • a communication system in another embodiment, includes at least one target device, one positioning center, one centralized unit CU and at least one distribution unit DU.
  • the centralized unit CU may be the first network device provided in FIG. 10 or FIG. 11, and is used to perform the centralized location method based on the CU-DU architecture provided in FIG. 4, FIG. 5, FIG. 6, FIG. 7, FIG. 8 or FIG.
  • the steps performed by the unit CU; and/or, the distribution unit DU may be the second network device provided in FIG. 12 or FIG. 13, for executing the steps provided in FIG. 4, FIG. 5, FIG. 6, FIG. 7, FIG. 8 or FIG.
  • the steps performed by the distribution unit DU in the CU-DU architecture positioning method; and/or, the target device may be the target device provided in FIG. 14 or FIG. 15 for executing FIG. 4, FIG. 5, FIG. 6, FIG. 7, or FIG. Figure 9 provides the steps performed by the target device in the positioning method based on the CU-DU architecture; and/or, the positioning center can be the positioning management device provided in Figure 16 or Figure 17, and is used to perform Figure 4, Figure 5, Figure 6, The steps performed by the positioning management function in the positioning method based on the CU-DU architecture provided in Figure 7, Figure 8, or Figure 9.
  • the communication system may include multiple distribution units and measurement network elements.
  • the distribution unit or measurement network element may measure the uplink reference signal sent by the target device, and report the measurement result to the positioning center.

Landscapes

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

Abstract

L'invention concerne un procédé de positionnement basé sur une architecture CU-DU. Le procédé est le suivant : premièrement, un centre de positionnement détermine un procédé de positionnement de liaison montante utilisé, et envoie un message de demande de positionnement à un premier élément de réseau d'un dispositif de réseau de relais ; deuxièmement, le premier élément de réseau envoie des informations d'assistance de configuration de liaison montante et une demande de mesure de liaison montante à un second élément de réseau désigné participant au positionnement dans le dispositif de réseau de relais ; ensuite, le second élément de réseau envoie une réponse de mesure de liaison montante au premier élément de réseau ; ensuite, le premier élément de réseau envoie la réponse de mesure de liaison montante au centre de positionnement ; et enfin, le centre de positionnement détermine des informations de position d'un dispositif cible sur la base de la réponse de mesure de liaison montante. Dans le procédé de positionnement basé sur une architecture CU-DU de la présente invention, un processus de positionnement sous une architecture CU-DU est conçu, et la signalisation d'un contenu d'interaction entre chaque élément de réseau et un dispositif est définie, ce qui permet d'assurer la mise en œuvre de la technologie de positionnement sous une architecture CU-DU ; et par comparaison avec un processus de positionnement de liaison montante classique, le processus de positionnement a un retard temporel inférieur, satisfaisant ainsi les exigences de positionnement de 5G pour un niveau élevé de précision et un faible retard temporel.
PCT/CN2020/080150 2019-04-12 2020-03-19 Procédé et appareil de positionnement basés sur une architecture cu-du WO2020207222A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910295988.1 2019-04-12
CN201910295988.1A CN111818552B (zh) 2019-04-12 2019-04-12 一种基于cu-du架构的定位方法及装置

Publications (1)

Publication Number Publication Date
WO2020207222A1 true WO2020207222A1 (fr) 2020-10-15

Family

ID=72751919

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/080150 WO2020207222A1 (fr) 2019-04-12 2020-03-19 Procédé et appareil de positionnement basés sur une architecture cu-du

Country Status (2)

Country Link
CN (1) CN111818552B (fr)
WO (1) WO2020207222A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117479292A (zh) * 2022-07-22 2024-01-30 大唐移动通信设备有限公司 定位方法、装置及存储介质

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106714299A (zh) * 2016-12-13 2017-05-24 上海华为技术有限公司 一种定位方法、辅助站点及系统

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10420063B2 (en) * 2017-02-02 2019-09-17 Qualcomm Incorporated On-demand user equipment positioning

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106714299A (zh) * 2016-12-13 2017-05-24 上海华为技术有限公司 一种定位方法、辅助站点及系统

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
ERICSSON: "How to Support Positioning in F1AP", 3GPP TSG-RAN WG3 #103BIS R3-191766, 30 March 2019 (2019-03-30), XP051695214, DOI: 20200601150713 *
ERICSSON: "Support for Positioning in F1AP", 3GPP TSG-RAN WG3 #103BIS R3-191692, 30 March 2019 (2019-03-30), XP051695142, DOI: 20200601150959A *
QUALCOMM INC.: "Transmission Measurement Function for NG-RAN Positioning", 3GPP TSG-RAN WG3 #103BIS R3-191328, 29 March 2019 (2019-03-29), XP051694788, DOI: 20200601151205A *

Also Published As

Publication number Publication date
CN111818552A (zh) 2020-10-23
CN111818552B (zh) 2022-10-18

Similar Documents

Publication Publication Date Title
WO2020125434A1 (fr) Procédé et dispositif de positionnement multistation
WO2020164339A1 (fr) Procédé et appareil d'envoi directionnel de signal de référence de positionnement
WO2021008581A1 (fr) Procédé de positionnement et appareil de communication
WO2020119727A1 (fr) Procédé de rapport de mesure et dispositif associé
KR101923262B1 (ko) 측정 노드를 포함하여 구성되는 시스템 내에서 다중 수신 포인트로 위치 결정하는 방법
KR20190092548A (ko) 포지셔닝 방법 및 시스템, 및 관련 디바이스
KR20210083264A (ko) 무선 네트워크에서 업링크 및 다운링크 포지셔닝 절차들을 지원하기 위한 시스템 및 방법들
WO2014056172A1 (fr) Procédé et appareil de positionnement
WO2019029422A1 (fr) Procédé et appareil de localisation et de notification de mesure
TWI760931B (zh) 資訊傳輸方法、裝置及電腦存儲介質
CN104662436B (zh) 定位方法和装置
US12015965B2 (en) Apparatus and user equipment positioning method
JP2024501719A (ja) 測位方法、機器及びコンピュータ読み取り可能な記憶媒体
WO2021027919A1 (fr) Procédé et appareil destinés à émettre un signal de référence
WO2022237423A1 (fr) Procédé et appareil de détermination de dispositif de référence, et dispositif réseau
WO2017071136A1 (fr) Procédé et appareil de positionnement assisté
WO2022141219A1 (fr) Procédé de positionnement et appareil associé
US20240057028A1 (en) Communication method and apparatus
WO2020207222A1 (fr) Procédé et appareil de positionnement basés sur une architecture cu-du
WO2016106502A1 (fr) Procédé et dispositif de positionnement
CN114095855A (zh) 一种定位方法及装置
WO2023011541A1 (fr) Procédé de positionnement et appareil de communication
WO2021243614A1 (fr) Procédé et appareil de traitement d'informations
WO2024138889A1 (fr) Procédés de positionnement et appareils de positionnement
WO2023201628A1 (fr) Procédé et appareil de positionnement de liaison latérale, dispositif, et support de stockage

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20786694

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20786694

Country of ref document: EP

Kind code of ref document: A1