Abstract: The technology of this application relates to a communication method and a communication apparatus used for positioning. The method includes a positioning device sending a request to an access network device, where the request is used to request information about a cell type of the access network device, and the cell type includes an indoor cell or an outdoor cell, or the cell type includes any one of: a macro cell, a micro cell, or a lampsite cell. The positioning device receives the information about the cell type from the access network device. The request may be sent to the access network device by using a transmission reception point (TRP) information request message, and the information about the cell type may be received by using a TRP information response message.

Abstract: Embodiments of this application disclose a communication method and a related apparatus, to position a terminal device by a positioning device. A first access network device sends a retrieve UE context request message to a source access network device. The first access network device receives a retrieve UE context response message from the source access network device. The retrieve UE context response message includes reference information used to configure a sounding reference signal SRS of a terminal device, and/or information used to indicate to configure an SRS for the terminal device. The terminal device is in inactive state. The first access network device determines SRS configuration information of the terminal device based on the reference information and/or the information used to indicate to configure the SRS for the terminal device. The first access network device sends the SRS configuration information to the terminal device.

Abstract: A positioning measurement method and an apparatus are provided. The method includes: after a first network element receives, from a second network element, an indication of obtaining location information of a terminal, the first network element requests at least one access network device to broadcast a message. The terminal starts to send a reference signal upon receiving the message broadcast. The first network element further requests the at least one access network device to measure the reference signal. Upon receiving a measurement request, the access network device measures the received reference signal, to obtain a corresponding measurement result; then sends the measurement result to the first network element. According to the present application, during uplink positioning, a terminal in a non-connected state does not need to re-enter a connected state, thereby reducing a delay for positioning the terminal, reducing energy consumption of the terminal, and improving positioning efficiency.

Abstract: Embodiments of this application disclose a communication method and a related apparatus thereof, to implement positioning of a terminal device in a non-connected state. The method in embodiments of this application includes: A terminal device sends a radio resource control RRC resume request message to an access network device; and the terminal device receives an RRC release message from the access network device, where the RRC release message includes a long term evolution system positioning protocol LPP message, and the LPP message is from a positioning device.

Abstract: Embodiments of this application disclose communication methods and apparatuses, to position a terminal device by a positioning device. In an implementation, a method comprises: sending, by a first access network device, a retrieve UE context request message to a source access network device, receiving a retrieve UE context response message from the source access network device, wherein the retrieve UE context response message comprises reference information for configuring a sounding reference signal (SRS) of a terminal device in an inactive state, determining SRS configuration information of the terminal device based on the reference information, and sending the SRS configuration information to the terminal device.

Abstract: Embodiments of this application disclose a communication method and a related apparatus, so that a first network device sends a first message to a first access network device, to indicate the first access network device to release a first positioning reference signal resource. In this way, the first positioning reference signal resource is released. The method in embodiments of this application includes: A first network device generates a first message, where the first message indicates to release a first positioning reference signal resource, the first positioning reference signal resource is a to-be-released positioning reference signal resource in a first positioning area, and the first access network device is an access network device in the first positioning area. The first network device sends the first message to the first access network device.

Abstract: A positioning measurement method, an inventory method, and a related apparatus, so that a first network device performs positioning measurement on a first apparatus during or after an inventory process of the first apparatus, thereby meeting a positioning requirement during or after the inventory process. The method includes: a core network device sends an inventory request to the first network device, where the inventory request is used to request inventory of the first apparatus, the inventory request includes first information, and the first information indicates the first network device to perform positioning measurement on the first apparatus. Correspondingly, the first network device receives the inventory request from the core network device; and the first network device performs positioning measurement on the first apparatus during or after the inventory process of the first apparatus.

Abstract: A communication method and apparatus, a storage medium, and a computer program product are provided, to configure a transmission of a reference signal for a terminal apparatus in a scenario in which the terminal apparatus moves. In this application, a first network apparatus receives first information, where the first information includes information used to configure a transmission of a reference signal of a terminal apparatus, and the reference signal is used to position the terminal device; the first network apparatus receives a terminal apparatus context request message from a second network apparatus; and the first network apparatus sends second information to the second network apparatus, where the second information is determined based on the first information, the second information includes information used to configure a transmission of the reference signal of the terminal apparatus.

Abstract: The present disclosure discloses example wireless network communication methods and network devices. One example method includes sending a first message to a second network device by a first network device, where the first message includes measurement object information of the first network device. A second message sent by the second network device is received by the first network device, where the second message includes indication information or measurement result information of the first network device, and the indication information indicates whether an inter-system unnecessary handover of a terminal device occurs. The first network device determines, based on the second message, whether the inter-system unnecessary handover of the terminal device occurs.

Abstract: Embodiments of this disclosure provide a signal quality information obtaining method, a device, and a system. One example method includes: a source network device obtains configuration information of an SRS of a terminal device and sends the configuration information of the SRS to a target network device and the terminal device. A first cell of the target network device monitors the SRS based on the configuration information of the SRS, and then the target network device sends, to the source network device, signal quality information of the SRS detected by the first cell. Correspondingly, the source network device receives, from the target network device, the signal quality information of the SRS detected by the first cell, where the first cell is a cell controlled by the target network device, the first cell is an energy-saving cell, and the energy-saving cell is a cell that does not send an SSB.

Abstract: Example cell access methods and apparatus are described. In one example method, a terminal device receives a first message in a cell of a first carrier. The first message includes remaining minimum system information (RMSI) of a cell of a second carrier and a first indication, and the first indication indicates information about a first bandwidth part (BWP). The terminal device accesses the cell of the second carrier based on the first BWP and the RMSI.

Abstract: The method is performed by a terminal or a module used in the terminal. The method includes: obtaining first time at which a downlink signal arrives at a baseband through a radio frequency channel of the terminal; determining, based on the first time and second time, a downlink delay of transmitting the downlink signal from an access network device to the terminal, where the second time is time at which a baseband of the access network device sends the downlink signal; determining an error of the downlink delay based on the downlink delay and air interface transmission duration, where the air interface transmission duration is duration of transmitting, to an antenna of the terminal through an air interface, a signal sent by an antenna of the access network device; and sending downlink delay error information to the access network device.

Abstract: A communication method and a related apparatus are provided, to excite a first apparatus to send a positioning reference signal, so as to position the first apparatus based on the positioning reference signal, and meet a requirement for positioning the first apparatus. The method includes: A first apparatus receives first information from a network device, where the first information is used to excite the first apparatus to send the positioning reference signal. The first apparatus sends the positioning reference signal based on the first information.

Abstract: A positioning method, applied to a mobility management network element, includes when learning that a terminal device needs to be handed over from a first access network device to a second access network device, sending a first message to a location management network element, where the first message indicates to suspend positioning measurement on the terminal device, and when learning that the terminal device has been handed over to the second access network device, sending a second message to the location management network element, where the second message enables the location management network element to send a first positioning request, and the first positioning request requests to perform positioning measurement on the terminal device.

Abstract: A communication method and a related device are disclosed. An evolved NodeB eNB receives a first message sent by a terminal device, where the first message is for requesting to access the eNB. The eNB sends a second message to the terminal device, where the second message includes a system message corresponding to at least one serving cell of a gNB, and the second message indicates the terminal device to be redirected to one of the at least one serving cell of the gNB, or the second message indicates the terminal device to be handed over to one of the at least one serving cell of the gNB. The terminal device receives the system message of the serving cell of the gNB from the eNB, to access the gNB.

Abstract: Embodiments of this application provide an uplink measurement management method. The method includes: A radio access network (RAN) device receives a first message from a positioning device, where the first message is used by the positioning device to request the RAN device to perform uplink measurement, and the first message includes a measurement periodicity and a measurement amount. The RAN device measures an uplink sounding reference signal (SRS) of a terminal device based on the measurement periodicity and the measurement amount, and sends a first response to the positioning device, where the first response includes a measurement result of the uplink SRS.

Abstract: Embodiments of this application disclose a communication method and a communication apparatus, to reduce power consumption of a terminal device and implement low-power positioning on the terminal device. The method in embodiments of this application includes: A terminal device receives first information from an access network device, where the first information is for configuring the terminal device to enter a first mode, and the first information is carried in an RRC release message or an RRC reconfiguration message. The terminal device enters the first mode based on the first information. When the terminal device is in the first mode, the terminal device does not perform at least one of the following: The terminal device monitors a paging message; the terminal device searches for at least one of the following: a synchronization signal block SSB or a system information block SIB1 message; or the terminal device measures an SSB.

Abstract: A synchronization signal/broadcast signal block broadcast method and an apparatus are disclosed. The method includes: A first access network device RAN 1 determines to request a second access network device RAN 2 to perform resource allocation for a terminal; and the RAN 1 sends, to the RAN 2, a first message used to indicate the RAN 2 to broadcast a synchronization signal/physical broadcast channel block SSB. Accordingly, the RAN 2 starts to broadcast the SSB. The first message further includes a broadcast periodicity for the SSB. The broadcast periodicity is further sent by the RAN 1 to the terminal. The RAN 2 stops, based on a specific situation, broadcasting the SSB.

Abstract: A reference signal configuration determining method and apparatus are provided. The method includes: a network device determines a first configuration for sending an aperiodic reference signal by a to-be-positioned terminal; and the network device sends the first configuration to a location management function. The network device is a serving base station of a terminal. The serving base station of the terminal may determine an aperiodic reference signal configuration of the terminal at any time. The first configuration of the aperiodic reference signal is sent to the location management function, so that the location management function can be notified of the aperiodic reference signal configuration in time. According to the application, the location management function obtains positioning measurement information from a measurement network element based on the first configuration, thereby optimizing an uplink positioning technology and improving uplink positioning accuracy.

Abstract: The method in embodiments of this application includes: A first access network device sends a radio resource control RRC release message to a terminal device via a second access network device, and sends first information to the second access network device, where the first information is used to request the second access network device to feed back, to the first access network device, information indicating whether the second access network device successfully sends the RRC release message to the terminal device, and the RRC release message includes sounding reference signal SRS configuration information of the terminal device. The first access network device receives a first message from the second access network device, where the first message is used to feed back, to the first access network device, information indicating that the second access network device successfully sends or fails to send the RRC release message to the terminal device.