Abstract:
The present invention relates to the wireless communications field, and provides a scheduling method, a device, and a system, to resolve a problem that a scheduling resource is wasted when SPS transmission with a relatively short scheduling interval is applied to a V2X service. The scheduling method provided in the present invention includes: receiving, by a first device, semi-persistent scheduling SPS configuration information from a second device; receiving, by the first device, SPS activation information from the second device, where the SPS activation information is used to indicate an activated SPS resource; and sending, by the first device, the SPS instruction information to the second device, where the SPS instruction information is used to instruct to use or not to use a scheduling resource of the activated SPS resource. Embodiments of the present invention are applied to V2X communication.
Abstract:
The present invention provides a method and an apparatus for controlling uplink power of a user equipment, where the method includes: separately acquiring first maximum transmit power of the user equipment corresponding to a first subframe and second maximum transmit power of the user equipment corresponding to a second subframe; and when the first maximum transmit power and the second maximum transmit power are different, using a minimum value of the first maximum transmit power and the second maximum transmit power as first configured maximum transmit power, and performing power control over transmit power of multiple carriers in an overlap region according to the first configured maximum transmit power, so that total transmit power of the multiple carriers in the overlap region after the power control is lower than or equal to the minimum value of the first maximum transmit power and the second maximum transmit power.
Abstract:
This application discloses a data receiving method, which may be applied to Internet of Vehicles, for example, V2X, LTE-V, and V2V. A first terminal apparatus may receive first control information from a second terminal apparatus, then receive second control information from the second terminal apparatus based on the first control information, and further receive, based on the first control information and the second control information, data sent by the second terminal apparatus. Therefore, the second control information and the data can be received after blind detection is performed on the first control information for a relatively small quantity of times, thereby improving efficiency of receiving the second control information and the data.
Abstract:
This application provides a communication method, and a distance determining method and apparatus. A first terminal device sends a first signal. A second terminal device determines whether a location of the second terminal device is a specified area. When the location of the second terminal device is the specified area, the second terminal device sends feedback information. When the location of the second terminal device is not the specified area, the second terminal device does not send feedback information or sends less feedback information. This method is applicable to communication, for example, V2X communication or D2D communication, between terminal devices on a sidelink.
Abstract:
This application provides a communication method and a communications apparatus. The communication method includes: a first terminal device determines a first parameter, where the first parameter is used to indicate a parameter of a sensing window, a parameter of a resource selection window, and/or a parameter of a first time window, and the first time window includes the sensing window and the resource selection window. The first terminal device determines a first resource pool from at least one resource pool based on the first parameter. The first terminal device selects a first resource from the first resource pool. The first terminal device transmits sidelink information on the first resource. According to the method provided in embodiments of this application, a data transmission delay can be reduced and system communication efficiency can be improved.
Abstract:
Embodiments of this application provide a feedback control channel configuration method and a device, and relate to the field of wireless communication. A candidate time-frequency resource may be configured for a physical sidelink feedback control channel (PSFCH) that carries feedback control information, so that the required feedback control information can be fed back on the PSFCH. The method includes: determining, by first user equipment, configuration information of a PSFCH, where the configuration information of the PSFCH is to indicate or configure a candidate time-frequency resource of the PSFCH, and the candidate time-frequency resource of the PSFCH is to the carry feedback control information of first information; and sending, by the first user equipment, the configuration information of the PSFCH to second user equipment.
Abstract:
Embodiments of the present invention relate to the communications field, and provide a method for determining a parameter set of a cell, a method for sending a parameter set of a cell, a device, and a system, so that a terminal can identify a parameter set of a cell in 5G NR supporting a plurality of parameter sets of the cell. The solutions provided in the embodiments of the present invention include: determining, by a base station, feature information of an identification signal based on a parameter set of a cell, wherein the parameter set of the cell comprises a subcarrier spacing; and sending the identification signal to a terminal based on the feature information of the identification signal.
Abstract:
This application provides a wireless communication method, a network device, a terminal device, and a computer-readable storage medium. The method includes: sending, by a network device, a first PDSCH and a second PDSCH to a terminal device, where scheduling performed by the network device on the first PDSCH and the second PDSCH is out-of-HARQ order scheduling; determining, by the network device, whether transmission of the second PDSCH interrupts a processing performed by the terminal device on the first PDSCH; and if the network device determines that the transmission of the second PDSCH interrupts the processing performed by the terminal device on the first PDSCH, determining, by the network device, that data corresponding to the first PDSCH is not successfully received.
Abstract:
A method for transmitting information in device-to-device (D2D) communication includes determining, by a first user equipment, in a communication resource for D2D communication, a target resource used to bear a reference signal (RS), where the target resource is according to characteristic information used in selecting the target resource, and the characteristic information used in selecting the target resource includes at least one of the following two items: characteristic information used to uniquely identify the first user equipment, and characteristic information used to uniquely identify a second user equipment that performs D2D communication with the first user equipment; and transmitting, by the first user equipment, the RS to the second user equipment using the target resource.
Abstract:
Embodiments of the present invention relate to the field of communications methods and technologies, and in particular, to a transmission method and apparatus. The transmission method includes: generating, by a first device, a sequence based on one or more transmission parameters, where the one or more transmission parameters include at least one of the following: a time domain resource type, transmission waveform indication information, subcarrier spacing indication information, device type information, service type indication information, multiple-input multiple-output MIMO parameter information, duplex mode indication information, control channel format indication information, and transmission carrier indication information; generating to-be-transmitted information by using the sequence; and sending the to-be-transmitted information. According to the transmission method and apparatus in the embodiments of the present invention, a new transmission error check mechanism is provided.