Abstract: A signal transmission method, a related device, and a system are provided. The method includes a terminal receiving configuration information, where the configuration information indicates N sets of power control parameters configured for M uplink resources or uplink resource sets, where M?1, M is a positive integer, N>1, and N is a positive integer; and the terminal transmits an uplink signal on the M uplink resources or uplink resource sets, where transmission power for transmitting the uplink signal on the M uplink resources or uplink resource sets is determined based on a first power control parameter, and the first power control parameter is selected from the N sets of power control parameters. According to the foregoing solution, uplink transmission power can be more flexibly adjusted, and power efficiency in uplink transmission and uplink transmission performance can be maximized.

Abstract: One example method includes receiving configuration information of a control channel resource set, where the configuration information indicates a quantity of time-frequency resource blocks of the control channel resource set and an offset from a frequency domain center location of a synchronization signal block to a frequency domain center location of the control channel resource set, the synchronization signal block includes broadcast information and a synchronization signal, and the broadcast information includes the configuration information. The control channel resource set is determined based on the quantity of time-frequency resource blocks and the offset, and control information is received within the control channel resource set.

Abstract: The present disclosure relates to map update methods and apparatuses. In one example method, a terminal side device receives sensing information from a sensor, where the sensing information indicates data collected by the sensor. The terminal side device receives second information from a cloud device, where the second information comprises second indication information, and the second indication information indicates a first change of a map element on a map. The terminal side device sends first information to the cloud device based on the sensing information and the second information, where the first information comprises first indication information, and the first indication information indicates a second change of the map element on the map.

Abstract: A map update data processing apparatus and method are provided. The method includes: obtaining first information from at least one vehicle terminal in a time window; determining, based on the first information and second information in a map, first change information of the second information and precision information and/or confidence information of the first change information, wherein the first change information indicates a difference between the first information and the second information; and finally, sending the first change information of the second information and the precision information and/or the confidence information to a first vehicle terminal.

Abstract: This application provides a sequence-based signal processing method and apparatus. A sequence used for sending a signal on a PUSCH is determined. The sequence is a sequence {xn} including N elements, xn is an element in the sequence {xn}, and the determined sequence {xn} is a sequence satisfying a preset condition. Then, a first signal is generated and sent. By using the determined sequence, when a signal is sent on the PUSCH, relatively good sequence frequency domain flatness can be maintained, and a relatively low PAPR value and a relatively low cross-correlation between sequences can be maintained, thereby satisfying a communications application environment in which a signal is sent on the PUSCH, especially an NR system scenario or an NR similar scenario.

Abstract: A detection window indication method and apparatus. The method includes receiving control channel configuration information from a network device, where the control channel configuration information indicates a resource multiplexing mode of a resource set of a control channel and a common signal block, and further indicates at least one of a duration of a detection window of the control channel or a time-domain start location of the detection window of the control channel, and detecting, according to the detection window and the resource set, the control channel.

Abstract: A prediction method and apparatus for an autonomous driving manual takeover, and a system are provided. One example method includes: A first vehicle sends a first message to a second vehicle when detecting that the first vehicle has a manual takeover requirement, where the first message includes information about a first location of the first vehicle, and the information about the first location is used to indicate a location of the first vehicle when the first vehicle detects that the first vehicle has the manual takeover requirement.

Abstract: The present disclosure relates to positioning methods, systems, and apparatuses. One example method includes receiving, by a server, a first message from a first terminal device, where the first message includes first location information determined by the first terminal device, determining, by the server, a first reference object based on the first location information, and sending, by the server, a second message to the first terminal device, where the second message includes identification information of the first reference object, and the identification information of the first reference object is used by the first terminal device to update the first location information.

Abstract: The present disclosure relates to communication methods. One example method includes determining a first bandwidth part (BWP) and a second BWP, determining an association relationship between the first BWP and the second BWP, and at least one of determining a first quasi co-location (QCL) relationship based on the association relationship, and receiving a physical downlink shared channel (PDSCH) in the second BWP based on the first QCL relationship, or determining a second QCL relationship based on the association relationship, and receiving a physical downlink control channel (PDCCH) in the second BWP based on the second QCL relationship.

Abstract: This application provides a physical broadcast channel sending/receiving method and an apparatus. In the method, after receiving two broadcast channel signals on two corresponding physical broadcast channels at two time-frequency resource locations, the terminal device determines that information other than an offset of a corresponding time-frequency resource location is the same in two pieces of broadcast information carried in the two broadcast channel signals, obtains a time offset difference between the foregoing two time-frequency resource locations, and generates a scrambling sequence based on the time offset difference; and the terminal device separately descrambles the two broadcast channel signals based on the scrambling sequence and a preset scrambling sequence, thereby implementing joint decoding on the two broadcast channel signals, to obtain one piece of broadcast information.

Abstract: This application discloses communication methods and apparatuses. One method includes: receiving, by a terminal device, a reference signal from a beam of a network device; determining, by the terminal device, availability of the beam based on a threshold and the reference signal; and sending, by the terminal device, feedback information to the network device, wherein the feedback information indicates the availability of the beam.

Abstract: Embodiments of this application provide a map data collection method and apparatus, and a system, to report map data in a targeted manner. The method includes: receiving a first instruction from a network side device, where the first instruction instructs a map data reporting manner to a first vehicle, the first instruction includes confidence information, and the confidence information indicates confidence that map data reported by the first vehicle; and sending the map data to the network side device in the map data reporting manner instructed by the first instruction, where confidence of the map data is not lower than the confidence indicated by the confidence information.

Abstract: A navigation method is disclosed. The method includes: obtaining first information including reference position information of the first device and/or satellite-related information, and determining a position of the first device based on the first information; and navigating the first device based on the position of the first device. In embodiments of this application, the first device obtains the first information, determines the position of the first device based on the first information, and then navigates the first device based on the position of the first device. The first information includes the reference position information of the first device and/or the satellite-related information, to help the first device quickly perform positioning or satellite searching, thereby improving efficiency of the first device in restoring navigation.

Abstract: This application provides an enhanced physical downlink control channel transmission method and apparatus. The method includes: in a physical resource block set, separately arranging first resource groups in each physical resource block pair (PRB) pair, where the first resource groups are enhanced resource element groups (eREGs) or REGs, and the physical resource block set includes at least one of the physical resource block pairs; numbering second resource groups according to a correspondence between the first resource groups and the second resource groups in the physical resource block set, where the second resource groups are control channel element eCCE groups or control channel candidates; determining numbers of the second resource groups for transmitting an E-PDCCH; and mapping, according to the determined numbers, the E-PDCCH to the corresponding first resource groups for transmission. The technical solution of this application resolves an E-PDCCH transmission problem.

Abstract: A random access resource configuration method and a communications device. The method includes receiving, by a terminal device, index indication information, where the index indication information is used to indicate a first configuration index, determining, by the terminal device based on the first configuration index, first configuration information corresponding to the first configuration index, where the first configuration information is used to indicate a time domain resource for a first group of random access preamble occasions (ROs) or a time domain resource for a second group of ROs, and where the time domain resource for the first group of ROs and the time domain resource for the second group of ROs are located in a first time unit in a random access configuration period.

Abstract: A data transmission method includes a vehicle-side device that sends, to a network side device, a first message to obtain vehicle driving-related information. The vehicle-side device receives, from the network side device, a second message including the vehicle driving-related information, where content or a format of the second message is determined by the network side device based on the first message.

Abstract: A data processing method includes initiating, to a cloud server, a first message used to access a roadside device or used to obtain signal transmit power-related information of static roadside equipment, receiving a second message fed back by the cloud server, where the second message is determined by the cloud server based on the first message and a prestored high-definition map, and the second message includes related information about accessing the roadside device by the vehicle-end device, or the signal transmit power-related information of the static roadside equipment, and accessing the roadside device based on the second message or determining a signal transmit power of the vehicle-end device based on the second message.

Abstract: This application discloses a communications method, and the method includes: receiving, by a terminal device, first information, where the first information is used to indicate one or more first time units in a random access system frame; and determining, by the terminal device, the one or more first time units based on the first information and a configuration table, where one or more time units in the configuration table are determined based on an uplink-downlink configuration period and a second time unit, the one or more first time units are an optional time domain resource of a random access sequence, and the second time unit is an optional time domain resource of a synchronization channel block. According to the method and the apparatus in this application, the optional time domain resource of the random access sequence can be determined.

Abstract: The present disclosure relates to beam configuration methods and apparatus. One example method includes receiving, by a terminal, beam configuration information from a network device, where the beam configuration information is used to instruct the terminal to transmit a signal by using a first beam, and transmitting, by the terminal, the signal by using at least the first beam when a first preset duration starting from a first time point expires, where the first time point is a time point at which the terminal sends an acknowledgement (ACK) message for the beam configuration information to the network device.

Abstract: One example method includes receiving configuration information of a control channel resource set, where the configuration information indicates a quantity of time-frequency resource blocks of the control channel resource set and an offset from a frequency domain center location of a synchronization signal block to a frequency domain center location of the control channel resource set, the synchronization signal block includes broadcast information and a synchronization signal, and the broadcast information includes the configuration information. The control channel resource set is determined based on the quantity of time-frequency resource blocks and the offset, and control information is received within the control channel resource set.