Abstract: A resource configuration method and a communication apparatus. The method includes receiving, by a network device, first reference sounding reference signal (SRS) resource information from a location management device, and configuring, by the network device, a second SRS resource for a to-be-positioned terminal device based on the first reference SRS resource information.

Abstract: A resource configuration method includes receiving, by a network device, first reference sounding reference signal (SRS) resource information from a location management device. The resource configuration method also includes configuring, by the network device, a second SRS resource for a to-be-positioned terminal device based on the first reference SRS resource information. At least one overlapping time domain unit exists between the second SRS resource and a first SRS resource. The first reference SRS resource information is related to the first SRS resource.

Abstract: This application provides positioning reference signal (PRS) sending and receiving methods and related apparatuses. An example apparatus includes at least one processor and at least one memory coupled to the at least one processor. The at least one memory stores instructions for execution by the at least one processor to cause the apparatus to perform operations. The operations include obtaining a resource for a PRS, sending sidelink control information (SCI), and sending the PRS on the resource for the PRS. The SCI includes first indication information, and the first indication information indicates the resource for the PRS.

Abstract: A preamble-based locating method and a device are provided. The method includes: a location management function network element receives first indication information from a first network device, wherein the first indication information indicates a first random access channel resource; sends second indication information to a terminal device, wherein the second indication information indicates a second random access channel resource, and the second indication information further indicates the terminal device to send a preamble to the first network device and a second network device; sends a location information request to the first network device and each second network device; the location management function network element receives measurement information from both the first network device and each second network device; and the location management function network element determines a location of the terminal device based on the measurement information.

Abstract: This application provides a signal transmission method and apparatus. The method includes: A neighboring cell sends downlink reference signal resource configuration information to a serving cell. The serving cell sends a downlink reference signal measurement request including downlink reference signal resource configuration information to a terminal device. The neighboring cell and the terminal device transmit a downlink reference signal based on the downlink reference signal resource configuration information. The terminal device obtains a downlink reference signal measurement result. The terminal device sends the downlink reference signal measurement result to the serving cell. The serving cell sends the downlink reference signal measurement result to the neighboring cell, or sends, to the neighboring cell, beam information that is about a beam between the neighboring cell and the terminal device and that is determined based on the downlink reference signal measurement result.

Abstract: A communication method includes receiving, by a terminal device or a chip in the terminal device, first configuration information, and sending n sounding reference signals based on the first configuration information. The first configuration information is useable to configure n sounding reference signals. The n sounding reference signals are useable for positioning. A carrier corresponding to at least one of the n sounding reference signals is a first positioning carrier, where n is an integer greater than 1. The n sounding reference signals are included in a same time domain resource unit.

Abstract: A reference signal transmission method, an apparatus, a storage medium, and a chip are provided, and relate to the field of communication technologies, to provide a solution of determining an angle (for example, an AOD) based on phase information. In this application, a first communication apparatus obtains first configuration information of a first reference signal, where the first configuration information includes indication information of a plurality of time domain resources used to determine phase information. The first communication apparatus receives the first reference signal, determines a plurality of pieces of first phase information corresponding to signals received on the plurality of time domain resources, and obtains second phase information and/or first angle-of-departure information based on the plurality of pieces of first phase information.

Abstract: A signal transmission method includes receiving a first positioning reference signal (PRS) resource set, receiving a second PRS resource set, and determining that N first PRS resources in the first PRS resource set and N second PRS resources in the second PRS resource set satisfy a quasi-colocation (QCL) relationship, where N is an integer greater than or equal to 1.

Abstract: An information configuration method and apparatus, the method including receiving first configuration information, where the first configuration information includes configuration information of a time-frequency resource to which a positioning reference signal (PRS) is mapped and configuration information of a time-frequency resource to which a synchronization signal/physical broadcast channel (SS/PBCH) block is mapped, determining, based on the first configuration information, the time-frequency resource to which the PRS is mapped and the time-frequency resource to which the SS/PBCH block is mapped, and skipping receiving, when the time-frequency resource to which the SS/PBCH block is mapped overlaps the time-frequency resource to which the PRS is mapped, the PRS on the overlapped time-frequency resource.

Abstract: A positioning method relating to the field of communications technologies includes: a positioning device obtains a positioning parameter set and sends the positioning parameter set to a positioning center, where the positioning parameter set includes multipath information of a to-be-positioned terminal, and the multipath information is used to position the to-be-positioned terminal. The positioning center may position the to-be-positioned terminal by using the multipath information of the to-be-positioned terminal.

Abstract: This application discloses a cell reselection method and an apparatus. The method includes: A terminal receives first indication information indicating one or more positioning areas, each of the one or more positioning areas includes a plurality of cells having same resource configuration information; and the terminal performs cell reselection in accordance with the first indication information to reselect a cell in the positioning area.

Abstract: This application relates to the field of communications technologies, and provides a time synchronization method and an apparatus, to perform positioning and/or timing error measurement on a target terminal in a wireless communications system, so as to avoid a relatively large positioning error caused by a timing error between the target terminal and a base station. The method is used in a wireless positioning system, where the wireless positioning system includes a first node and a second node, and the method includes: The first node receives an arrival time t2 of a first reference signal and a sending time t3 of a second reference signal that are sent by a second node, where the first reference signal is sent by the first node, and the second reference signal is sent by the second node.

Abstract: A positioning method and a device, related to the communications field. In a 5G NR system, UE may be positioned only by measuring an uplink angle of arrival. The method includes: obtaining, by a location management function network element, a positioning measurement parameter set, where the positioning measurement parameter set at least includes at least two uplink angles of arrival that are obtained by measuring a reference signal sent by a terminal device; and determining, by the location management function network element, a location of the terminal device based on the at least two uplink angles of arrival in the positioning measurement parameter set.

Abstract: A positioning method and apparatus. A location management network element sends first indication information to a network device, where the first indication information is useable by the network device to measure a signal that is sent by a terminal device and that is reflected by a reflection panel. After receiving the first indication information, the network device measures the signal reflected by the reflection panel, and reports a measurement result to the location management network element. The location management network element determines a location of the terminal device based on location information of the network device, location information of the reflection panel, and the measurement result. In response to a line-of-sight (LOS) path between the terminal device and the network device being blocked, a signal on the LOS path cannot be directly transmitted and measured.

Abstract: This application provides an angle measurement result sending method and an apparatus. The method includes: The second device receives a reference signal sent by the first device; the second device measures the reference signal to obtain a first angle measurement result, where the first angle measurement result is a measurement result of a first measurement object, the first measurement object is a direct path or a reflection path, the first angle measurement result includes M angle measurement parameters, at least one of the M angle measurement parameters in the first angle measurement result includes a plurality of angle measurement values, and M is a positive integer greater than or equal to 1; the second device sends the first angle measurement result to the location management device; and the location management device determines the location of the first device based on the first angle measurement result.

Abstract: A positioning information reporting method and an apparatus reduces a measurement error in a positioning technology and improves positioning precision. The method includes: a terminal device obtains request location information that is of a location management network element and that includes angle assistance information. The angle assistance information may indicate an angle between an access network element and the terminal device. The terminal device sends, to the location management network element, provide location information including a measurement result and first indication information corresponding to the measurement result. The measurement result may be a result of measuring, by the terminal device based on the angle assistance information, a signal sent by the access network element. The first indication information may indicate whether an angle corresponding to the measurement result is within the angle indicated by the angle assistance information.

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: An uplink positioning method and a communication apparatus are provided, to reduce power consumption of a terminal in a positioning process, and meet a requirement for low power consumption. The method includes: A terminal receives first indication information and a first message, and sends, in a positioning area indicated by the first indication information, a reference signal based on resource configuration information corresponding to the positioning area. The first indication information indicates one or more positioning areas, the first message includes one or more pieces of resource configuration information, one piece of resource configuration information corresponds to one positioning area, each piece of resource configuration information is used to configure a resource for the terminal to send the reference signal, and the reference signal is used to determine a location of the terminal.

Abstract: A method for determining a fault tolerant time interval (FTTI) of an autonomous driving assistance system is disclosed. The method includes (i) receiving an emulation result and/or a vehicle test result, wherein the emulation result and/or the vehicle test result includes a relationship between a sensitive parameter and a fault duration, (ii) receiving a controllability study result; and (iii) determining the fault tolerant time interval (FTTI) from a database including the emulation result and/or the vehicle test result and the controllability study result on the basis of a safety target related to the sensitive parameter. An apparatus for determining a fault tolerant time interval (FTTI) of an autonomous driving assistance system, a computer storage medium, and a computer program product are also disclosed.