Abstract: A terminal device determines the time domain location, where the time domain location is a time domain location of the RSS of the neighbor cell in the timing of the neighbor cell; determines a first sequence parameter of the RSS of the neighbor cell; and measures the RSS of the neighbor cell based on the time domain location and the first sequence parameter of the RSS of the neighbor cell.

Abstract: A positioning signal processing method includes receiving positioning reference signal (PRS) configuration information from a positioning device. A PRS is received as a PRS resource set. Each PRS resource set includes one or more PRSs. One access network device corresponds to one or more PRS resource sets. The positioning signal processing method further includes determining PRS time domain information based on the PRS configuration information. The time domain information includes a periodicity (P) of the PRS and a symbol length of the PRS in the P. The positioning signal processing method further includes receiving a plurality of PRSs based on the PRS time domain information.

Abstract: A communication apparatus determines a serving cell that can perform information synchronization with a to-be-activated SCell, where the serving cell is an activated cell or a known cell. The communication apparatus determines a first SSB in SSBs sent by the to-be-activated SCell, where the first SSB corresponds to a second SSB sent by the serving cell. The communication apparatus activates the to-be-activated SCell based on the first SSB sent by the to-be-activated SCell and timing information and beam information of the second SSB.

Abstract: A power consumption control method, a chip system, and a terminal device in the field of terminal technologies is provided. The method includes: detecting, by a terminal device, a screen state and data traffic of the terminal device; and switching the terminal device from a normal working mode to a low power mode when the screen state is a screen-off state and the data traffic is less than or equal to a preset traffic threshold. In the low power mode, the terminal device does not receive downlink data, and current in a radio frequency path of the terminal device drops to a preset current, where the preset current is less than a current value of the radio frequency path in the normal working mode.

Abstract: This application discloses a measurement method and a device, to resolve the following problem: A collision occurs in a process of performing two measurement tasks by a terminal device, affecting measurement efficiency of the terminal device. In this method, after the terminal device simultaneously or successively receives measurement requests sent by devices initiating two measurement tasks, the terminal device may preferentially perform any one of the two measurement tasks, thereby ensuring completion quality of the measurement task. In this way, when devices initiating two measurement tasks instruct the terminal device to perform the two corresponding measurement tasks, a collision can be avoided in a process of performing the two measurement tasks by the terminal device, thereby ensuring measurement efficiency of the terminal device.

Abstract: A method and device for estimating the time of arrival (ToA) of a radio signal are proposed. The radio signal comprises M subsignals carried on M subcarriers, where M is an integer ?2. The number of propagation paths and the time of arrival associated with a first path are estimated. The technique can improve ToA estimation accuracy, especially in a multipath fading channel, and reduce the need for channel information.

Abstract: This application discloses a communication method and apparatus that activate a secondary cell. If the activated cell is an unknown secondary cell, in response to a terminal device detecting the secondary cell, the terminal device may send indication information to a network device. The indication information is used to trigger the network device to send an RS. In this way, in response to receiving the indication information, the network device may send the RS to the terminal device. Therefore, the terminal device avoids waiting a long period of time for the network device to send a reference signal, which can reduce a delay for activating the secondary cell.

Abstract: This application relates to the field of communication technologies and discloses a communication method and a communication apparatus, which are used to resolve a problem of a large activation delay of a secondary serving cell serving a terminal device in an existing technology. The method includes: A network device sends temporary SSB burst configuration information to a terminal device served by a secondary serving cell, where the temporary SSB burst configuration information includes a periodicity and/or an offset for sending a temporary SSB burst by the network device in the secondary serving cell configured for the terminal device. The network device sends a temporary SSB burst in the secondary serving cell based on the temporary SSB burst configuration information, where a temporary SSB included in the temporary SSB burst does not include a PBCH.

Abstract: A method for sending a positioning signal includes determining, by a first device, a first target access network useable to transmit the positioning signal. The first target access network includes at least a first access network or a second access network. The method further includes sending, by the first device, the positioning signal to a second device by the first target access network.

Abstract: The disclosure provides example communication methods and apparatuses. One example method includes that a network device sends a first message to a terminal apparatus, where the first message indicates the terminal apparatus to perform BWP switching. In addition, the network device send scheduling information to the terminal apparatus within first duration after sending the first message, where the scheduling information is used to schedule data of the terminal apparatus. According to the foregoing method, the network device can continue to schedule uplink and downlink data of the terminal apparatus within the first duration after sending IMP switching signaling to the terminal apparatus.

Abstract: Embodiments of the present disclosure disclose a positioning information transmission method, a related device, and a system. The positioning information transmission method includes: determining an uplink subframe for carrying an uplink signal and a downlink subframe for carrying a downlink signal; determining first measurement information and second measurement information; and sending the first measurement information and the second measurement information to a positioning server, for locating a terminal device by the positioning server. Positioning accuracy can be improved by using the embodiments of the present disclosure.

Abstract: The present disclosure relates to information transmission methods. One example method includes receiving, by a user equipment (UE), positioning measurement configuration information from a positioning center, and performing, by the UE, positioning measurement based on the positioning measurement configuration information. The positioning measurement configuration information comprises a quantity of to-be-measured cells, and the quantity of to-be-measured cells is used to limit a maximum quantity of to-be-measured cells.

Abstract: The present disclosure relates to information transmission methods. One example method includes obtaining, by a positioning center, coverage indication information, where the coverage indication information is used to indicate a coverage enhancement level of user equipment UE, indicate that UE is at a first coverage enhancement level, or to indicate that UE requests to reduce a quantity of to-be-measured cells, and sending, by the positioning center, positioning measurement configuration information to the UE, where the positioning measurement configuration information is determined by the positioning center based on the coverage indication information, and the positioning measurement configuration information is used to perform positioning measurement configuration on the UE.

Abstract: A network device for locating performing following operations: determining a base station set and an auxiliary UE set that participate in locating of to-be-located target UE; receiving from the to-be-located target UE, a first RSTD set of positioning reference signals PRSs sent by any two base stations in the base station set to the to-be-located target UE, and a second RSTD set of a PRS sent by any auxiliary UE in the auxiliary UE set to the to-be-located target UE and a PRS sent by a reference base station in the base station set to the to-be-located target UE; and determining location information of the plurality of to-be-located UEs based on the first RSTD set, the second RSTD set, and location information of base stations included in the base station set. Locating accuracy and flexibility can be improved.

Abstract: The method is applied to a terminal device, the terminal device stores training sample data, and the training sample data includes a correlation spectrum characteristic vector of a reflected signal of a sounding reference signal (SRS) and a corresponding user gesture identifier. The method includes: transmitting, by the terminal device, a first sounding reference signal (SRS); receiving, by the terminal device, a multipath reflected signal that is of the first sounding reference signal (SRS) and that is reflected from a gesture-making object, and performing a related operation on the reflected signal and a signal template corresponding to the first sounding reference signal (SRS), to obtain a correlation spectrum characteristic vector of the reflected signal; and matching, by the terminal device, the correlation spectrum characteristic vector of the reflected signal against the training sample data, to recognize an input gesture.

Abstract: A method for sending a positioning signal includes determining, by a first device, a first target access network useable to transmit the positioning signal. The first target access network includes at least a first access network or a second access network. The method further includes sending, by the first device, the positioning signal to a second device by the first target access network.

Abstract: This application relates to the field of positioning technologies, and specifically to a data transmission method, a server, and a base station. The method includes: receiving, by a base station, a first message sent by a server, where the first message carries a first data packet including positioning assistance data; and broadcasting, by the base station, the first data packet in the first message to a terminal.

Abstract: Embodiments of the present invention provide a terminal device and a positioning system, and relate to the field of communications technologies. The terminal device is configured to: obtain identifiers of at least two antenna elements and attribute information of a reference signal corresponding to each of the at least two antenna elements; receive at least two reference signals based on the attribute information, where the at least two reference signals are sent by corresponding antenna elements of the at least two antenna elements, respectively; obtain positioning information; and send, to the network device, the positioning information and identification information of antenna elements corresponding to the positioning information. Positioning signals obtained by different antenna elements are different, so that the terminal device can identify which antenna element a received positioning signal comes from.

Abstract: Embodiments of this application provide a signal measurement method and a related device. The signal measurement method includes: when performing signal measurement, determining, by a terminal, whether a signal bandwidth of a signal sent by a base station is switched; if determining that the signal bandwidth of the sent signal is switched, measuring, by the terminal, a switched signal bandwidth or a switched frame structure of the sent signal; and sending, by the terminal, a measurement report to the base station according to a preset rule or a measurement indication of the base station, to realize measuring a signal with a changing bandwidth in a cellular mobile communications network.

Abstract: The present disclosure relates to the mobile communications field. In a positioning base station determining method, a positioning server receives a positioning request message from a terminal device; the positioning server obtains information about a candidate base station from a serving base station of the terminal device according to the positioning request message, where the information about a candidate base station indicates at least one base station; and the positioning server determines a positioning base station set according to the information about a candidate base station, where the positioning base station set includes a positioning base station configured to position the terminal device, and the positioning base station includes one or more of the at least one base station and/or the serving base station.