Abstract: A resource request method and system, a device, and a network side node are provided. The method includes the following steps: A target device sends a first target device message to a relay device. When receiving the first target device message, the relay device sends a first relay device message to a network side node according to the first target device message. The network side node receives the first relay device message, and sends first grant information to the target device according to the first relay device message. The first grant information includes a data transmission resource allocated by the network side node to the target device. According to embodiments of the present disclosure, energy consumption of a sending device, that is, a target device, can be reduced while the sending device obtains a transmission resource.

Abstract: A downlink transmission method and a corresponding base station and terminal are provided. In some feasible implementations, a base station sends downlink control information to a terminal in a subframe n+k, where the downlink control information includes indication information and a HARQ process identification, the indication information is used to indicate a location of at least one OFDM symbol in data that is sent by the base station to the terminal in a subframe n, the HARQ process identification in the downlink control information is the same as a HARQ process identification in the subframe n, and both n and k are natural numbers; and the base station transmits, in the subframe n+k, at least data that is sent to the terminal and that is on the at least one OFDM symbol that is in the subframe n and that is indicated by the indication information.

Abstract: This application discloses a resource configuration method, a method for determining a bandwidth part, a method for indicating a bandwidth part, and a device. The method for indicating a bandwidth part includes: determining, by a base station, the bandwidth part based on a mapping relationship between a first carrier bandwidth and a first bandwidth part set and/or a mapping relationship between a capability bandwidth of a terminal device and a second bandwidth part set, where the first bandwidth part set includes a plurality of bandwidth parts, the first bandwidth part set includes the bandwidth part, the second bandwidth part set includes a plurality of bandwidth parts, and the second bandwidth part set includes the bandwidth part; and indicating, by the base station, the bandwidth part to the terminal device.

Abstract: A wireless communication system and method, the method being performed by a base station, and including receiving a system message on a downlink carrier, where the system message includes uplink carrier configuration information and preamble transmission configuration information, the uplink carrier configuration information indicates a plurality of uplink carriers, and the preamble transmission configuration information indicates a transmission configuration of a radio access preamble, sending, based on the transmission configuration of the radio access preamble, the radio access preamble on an uplink carrier of the plurality of the uplink carriers, and detecting, based on identification information of the uplink carrier, control information of a radio access response message on the downlink carrier.

Abstract: A transmission mode switching method and apparatus are provided. The method includes receiving, by a terminal, transmission mode configuration information sent by a base station, where the transmission mode configuration information includes a configuration parameter of a target transmission mode, and setting, by the terminal, a current uplink transmission mode to the target transmission mode if the terminal detects, through listening, trigger signaling in preset space. When uplink data transmission supports multiple transmission modes, switching between the multiple transmission modes can be implemented.

Abstract: Embodiments of the present disclosure disclose a signal transmission apparatus and method, and a wireless access node, and relate to the field of communications technologies, so as to resolve a problem that a spectrum cannot be fully used. The method of the present disclosure includes: obtaining, by a wireless access node, configuration information for use to transmit a signal of a second carrier in coverage space of a first carrier, a spectrum occupied by the first carrier and a spectrum occupied by the second carrier overlap, and a subcarrier of the first carrier and a subcarrier of the second carrier are orthogonal; and transmitting, by the wireless access node, the signal of the second carrier according to the configuration information. The present disclosure is applicable to a scenario in which a signal of a carrier is transmitted in coverage space of another carrier.

Abstract: Embodiments of this application provide a data transmission method, an apparatus, and a system, and relate to the field of communications technologies, to resolve a problem that two carriers cannot be deployed overlapping with each other. The method includes: determining a transmission time unit pattern corresponding to a slot set, where the transmission time unit pattern is used to indicate a symbol location at which a transmission time unit in a slot in the slot set is located, and a quantity of symbols included in the transmission time unit is less than a quantity of symbols included in the slot; and sending a notification message to a terminal device, where the notification message includes information about the slot set and information about the transmission time unit pattern, and the information about the transmission time unit is used to indicate the transmission time unit pattern.

Abstract: This application discloses a resource mapping method and an apparatus. The method includes the following steps: receiving, by user equipment, a first resource message sent by a base station, where the first resource message includes a transmission time unit and an offset value corresponding to the transmission time unit; and determining, by the user equipment, a time-frequency resource location of a physical channel or a physical signal in the transmission time unit based on the transmission time unit and the offset value. The technical solutions provided in this application have an advantage of avoiding interference between two carriers.

Abstract: Embodiments of this application disclose a downlink control channel indication method, a terminal device, and a network device. The method includes: receiving, by a terminal device, indication information sent by a network device on a preset frequency band of a first time frequency resource, where the first time frequency resource partially or completely overlaps with a second time frequency resource; and determining, by the terminal device, a location of a physical downlink control channel (PDCCH) time frequency resource of the first time frequency resource according to the indication information. In the technical solutions of this application, the terminal device of the first time frequency resource can determine the location of the PDCCH time frequency resource.

Abstract: The present invention relates to the field of wireless communications technologies, and provides a method for transmitting a carrier, a base station, user equipment, and a system. The method discloses: sending, by a base station, a second carrier, where the second carrier at least partially shares a same resource area with a first carrier, the resource area includes a plurality of resource elements, and the first carrier and the second carrier occupy different resource elements; and sending, by the base station, blank resource element indication information to user equipment that receives the second carrier, where the blank resource element indication information is used to indicate a position of a resource element occupied by the first carrier in the shared resource area. According to the solutions provided in the embodiments, a resource utilization rate of a communications system is improved, and interference between carriers is avoided.

Abstract: Embodiments of the present disclosure provide a message feedback method and apparatus for carrier aggregation. The method includes: receiving, by a terminal in a first downlink subframe on a carrier aggregation group, a data packet sent by a base station, where the carrier aggregation group includes a first carrier and a second carrier; determining a first timing, based on a subframe configuration for the carrier aggregation group and a mapping relationship between subframe configurations for carrier aggregation groups and timings; determining a first uplink subframe from subframes on the carrier aggregation group based on the first timing; and sending, to the base station, a feedback message in the first uplink subframe. In this way, the first uplink subframe is determined on the entire carrier group for sending the feedback message, and a selectable range is larger.

Abstract: Embodiments of the present disclosure provide example methods and apparatuses for transmitting pattern information. One example method for transmitting pattern information includes obtaining pattern information and sending the pattern information to UE. The first pattern information indicates that the spectrum of the first cell is allocated to the first RAT in a first plurality of sub-frames and that the spectrum of the first cell is allocated to the second RAT in a second plurality of sub-frames. The first pattern information enables at least one of the UE to select any sub-frame in the first plurality of sub-frames to measure a CRS if the UE RAT pattern corresponds to the first RAT or the UE to select any sub-frame in the second plurality of sub-frames to measure the CRS if the UE RAT pattern corresponds to the second RAT.

Abstract: A video service transmission method and apparatus in the field of communications technologies are provided, where data in a video data frame can be split into at least two substreams based on a mapping relationship between data importance and a substream. The data of the at least two substreams may then be mapped, based on port numbers corresponding to the at least two substreams, to bearers corresponding to the at least two substreams, for transmission. Because a network can use different processing methods for data on different bearers, reliable transmission of video data frames of high importance can be ensured with priority by using the video service transmission method and apparatus, so as to improve service experience of video users in a scenario of constrained transmission resources.

Abstract: According to a radio resource sharing method and a device that are provided in embodiments of the present disclosure, first, a network control device obtains a network parameter of a first communications system, and configures a spectrum sharing manner between the first communications system and a second communications system according to the network parameter; and next, sends a spectrum resource allocation message to a base station in the second communications system. The spectrum resource allocation message includes the determined spectrum sharing manner and information about a spectrum resource allocated to the second communications system. In this way, inter-system spectrum sharing can be implemented in different network statuses.

Abstract: A resource request method and system, a device, and a network side node are provided. The method includes the following steps: A target device sends a first target device message to a relay device. When receiving the first target device message, the relay device sends a first relay device message to a network side node according to the first target device message. The network side node receives the first relay device message, and sends first grant information to the target device according to the first relay device message. The first grant information includes a data transmission resource allocated by the network side node to the target device. According to embodiments of the present disclosure, energy consumption of a sending device, that is, a target device, can be reduced while the sending device obtains a transmission resource.

Abstract: This disclosure relates to the mobile communications field, and in particular, to data transmission technologies in the mobile communications field. In a data transmission method, a base station allocates, to a terminal, some of time domain symbols that are used for data transmission and that are in a scheduling period of the terminal, and the terminal performs data transmission based on the allocated time domain symbols. According to the method, time domain symbols in the scheduling period that originally belong to the terminal are punctured, a resource waste caused when the terminal occupies all time domain symbols that are used for data transmission and that are in the scheduling period during scheduling each time can be avoided, so that radio resources can be flexibly allocated based on requirements on delays and bandwidth, thereby improving resource utilization.

Abstract: A downlink transmission method and a corresponding base station and terminal are provided. In some feasible implementations, a base station sends downlink control information to a terminal in a subframe n+k, where the downlink control information includes indication information and a HARQ process identification, the indication information is used to indicate a location of at least one OFDM symbol in data that is sent by the base station to the terminal in a subframe n, the HARQ process identification in the downlink control information is the same as a HARQ process identification in the subframe n, and both n and k are natural numbers; and the base station transmits, in the subframe n+k, at least data that is sent to the terminal and that is on the at least one OFDM symbol that is in the subframe n and that is indicated by the indication information.

Abstract: A spectrum sharing method includes a first base station (BS) establishes a first sharing cell of a first-standard network at a shared frequency, establishes a service of a user equipment (UE) of the first-standard network in the first sharing cell, and transmits data on a Traffic Radio Bearer (TRB) of the first UE. A second BS establishes a second sharing cell at the shared frequency, and establishes a service of a second UE of the second-standard network in the second sharing cell. When the shared frequency is shared, the first BS suspends the data transmission on the TRB of the service of the first UE, and retains a common channel of the first sharing cell and a SRB of the service of the UE of the first-standard network. The second BS then starts data transmission on the TRB of the service of the second UE.

Abstract: Embodiments of the present application provide a data transmission method. The method includes: sending, by user equipment, uplink data to a base station by using an uplink user equipment relay; and receiving, by the user equipment, downlink data from the base station, or receiving, by the user equipment, downlink data from the base station by using a downlink user equipment relay. Uplink transmission and downlink transmission are separately performed in different transmission paths, so as to reduce impact of a fault of a user equipment relay on a network, and improve network reliability.

Abstract: Embodiments of the present disclosure provide example methods and apparatuses for transmitting pattern information. One example method for transmitting pattern information includes obtaining pattern information and sending the pattern information to UE. The first pattern information indicates that the spectrum of the first cell is allocated to the first RAT in a first plurality of sub-frames and that the spectrum of the first cell is allocated to the second RAT in a second plurality of sub-frames. The first pattern information enables at least one of the UE to select any sub-frame in the first plurality of sub-frames to measure a CRS if the UE RAT pattern corresponds to the first RAT or the UE to select any sub-frame in the second plurality of sub-frames to measure the CRS if the UE RAT pattern corresponds to the second RAT.