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.

Abstract: Embodiments of this application disclose a communication method and a communication apparatus. The method in embodiments of this application includes: A terminal device determines capability information, where the capability information includes a low power capability, and the low power capability indicates that the terminal device supports low power positioning. The terminal device sends the capability information to a location management device. This helps the location management device notify an access network device that the terminal device supports the low power positioning, or indicate, to the access network device, that the terminal device has a low power requirement. The terminal device has different positioning capabilities in different radio resource control RRC states. Therefore, this helps the access network device properly configure an RRC state of the terminal device, so that the terminal device participates in a positioning process in the corresponding RRC state.

Abstract: Embodiments of this application disclose a communication method and apparatus, to ensure normal implementation of a positioning function, so that a location management device positions a terminal device. The method includes: A distributed unit DU receives a positioning information request from a central unit CU, where the positioning information request is used to request to configure the terminal device to send a sounding reference signal SRS and request configuration information of the SRS. The DU sends a user equipment UE context modification required to the CU, where the UE context modification required includes first information, and the first information is used to indicate that the UE context modification required is in response to the positioning information request. The DU receives a UE context modification confirm from the CU. The DU sends a positioning information response to the CU, where the positioning information response includes the configuration information of the SRS.

Abstract: A remote interference management method and an apparatus are provided. The method includes: A first network device receives a reference signal (RS) sent by a second network device, where the RS is used to indicate that the second network device is subject to remote interference. The first network device determines first auxiliary information, and sends the first auxiliary information to the second network device. The first auxiliary information includes at least one of the following information: frequency domain information of a downlink transmission resource of the first network device, time domain information of the downlink transmission resource of the first network device, or beam information of downlink transmission of the first network device.

Abstract: A communication method includes receiving, by a first terminal device, configuration information of at least one reference signal. The communication method also includes sending, by the first terminal device, the at least one reference signal based on the configuration information. The first terminal device does not receive or send at least one of a non-access stratum (NAS) message, a transmission long term evolution positioning protocol (LPP) message, connected mode information, or a paging message.

Abstract: Embodiments of this application disclose a communication method, including: A location management device sends time information to a first access network device, where the time information indicates to measure, after a reference time indicated by the time information, an Xth sounding reference signal SRS sent by a terminal device, and X is an integer greater than or equal to 1. The location management device sends the time information to a second access network device. The location management device receives a first measurement result from the first access network device, where the first measurement result is obtained by measuring an SRS of the terminal device based on the time information. The location management device receives a second measurement result from the second access network device, where the second measurement result is obtained by measuring the SRS of the terminal device based on the time information.

Abstract: The technology of this application relates to a communication method and apparatus, which may be used in a new radio (NR) system or an long term evolution (LTE) system, to accurately locate a terminal device. The method includes an access network device receiving an uplink positioning signal from at least one assistant device, and sending a measurement result to a location management function network element. The uplink positioning signal is an uplink positioning signal sent by a terminal device. The measurement result is determined based on the uplink positioning signal. The measurement result includes one or more of: information about the at least one assistant device, relative time of arrival, or a time difference of arrival.

Abstract: A communication method and apparatus. The method includes: a first access network device receives a retrieve UE context request message from a second access network device and sends first information to a positioning management network element. The first information indicates at least one of the following: an area change, update of a sounding reference signal (SRS) configuration, or update of an area. The area is an area in which the SRS configuration configured by the first access network device for a terminal is valid. One area includes at least one cell. That the first information indicates the area change is that the first information includes at least one of the following: the area change, moving out of the area, a cell change, moving out of a cell, an area identity, or a cell identity.

Abstract: This application provides a communication method, apparatus, and system, which may be used to position a terminal device in a handover scenario, so that continuity of a positioning service can be maintained, and a positioning success rate can be improved. The method includes: A communication device sends a first message to a location management function network element after determining that a terminal device is handed over to a target cell, where the first message includes identifier information of the target cell, so that the location management function network element receives the first message.

Abstract: This application discloses a communication method and apparatus. The method includes: A terminal sends indication information to an access network device, where the indication information indicates at least one of the following: positioning, a terminal type, or signaling transmission; and the terminal receives an RRC message from the access network device, where the RRC message is used for configuring an SRB2 for the terminal and not configuring a DRB. If the indication information indicates positioning, the indication information includes positioning, positioning-signaling, a positioning service, positioning service signaling, or the like.

Abstract: In an example positioning method, a first network device receives first measurement information of at least one first access network device and first assistance information, where the first measurement information is obtained by a terminal device by measuring a signal sent from the at least one first access network device. The first network device determines position information of the terminal device based on the first assistance information and the first measurement information.

Abstract: One example of this disclosure includes sending codebook based sweeping information to at least one UE; receiving Precoding Index reports from said at least one UE; grouping said at least one UE into at least one group, wherein the UEs in the same group are covered by the same transmitting precoding; sending beamformed CSI-RS in accordance with said at least one group; receiving CSI reports from UEs of said at least one group, so as to transfer data to said at least one UE accordingly.

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 relate to the field of wireless communication technologies, and provide a communication method and apparatus, to improve accuracy of a positioning result and reduce a waste of resources of a network device. In the method, the network device may receive a positioning information request from a positioning server. The positioning information request may be used to request the network device to configure uplink positioning reference signal configuration information for a terminal device. The network device may send the uplink positioning reference signal configuration information and neighboring cell information to the positioning server. The neighboring cell information may include an identifier of one or more first neighboring cells and/or a measurement result of a measurement quantity corresponding to the one or more first neighboring cells. The first neighboring cell is a neighboring cell of the terminal device.

Abstract: This disclosure discloses a method and an apparatus for configuring an uplink positioning reference signal resource, to resolve a problem of an uplink positioning measurement error. The method includes: A first network device receives first information sent by a location management function network element (LMF), where the first information indicates that a first uplink positioning reference signal resource is available or unavailable; and the first network device configures an uplink positioning reference signal resource for a first terminal device based on the first information.

Abstract: Example grouping methods, apparatuses, and systems are provided. One example method includes receiving, by a central unit, a first interference intensity indication reported by at least one distributed unit. The central unit can then group the at least one distributed unit into at least one first distributed unit group based on the first interference intensity indication. The central unit can then send, to a controller, a distributed unit grouping indication and a second interference intensity indication that corresponds to the at least one first distributed unit group, where the distributed unit grouping indication is used to indicate the at least one first distributed unit group.

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.