Abstract: Embodiments of the present invention provide a control channel position determining method, a device, and a processor-readable storage medium. A terminal device determines an available unlicensed band set and a control channel resource group, and determines at least one first unlicensed band to which at least one of control channel resource groups belongs, based on bitmap information or offset information. The at least one first unlicensed band belongs to the available unlicensed band set. Compared with that a control channel resource group is semi-statically configured to belong to a first unlicensed band, according to the embodiments of the present invention, no matter how an available unlicensed band included in an available unlicensed band set changes, a first unlicensed band to which at least one control channel resource group belongs can always be determined, thereby ensuring normal communication.

Abstract: The present disclosure relates to example data transmission methods, user equipment, and access network devices in an LAA-LTE system. An example data receiving method includes determining, by user equipment, first information of a first cell. The user equipment determines a first subframe based on the first information, where a downlink data transmission length of the first subframe is less than a first threshold. The user equipment then determines a data transmission characteristic of the cell in the first subframe based on a preset condition, so as to receive, based on the data transmission characteristic, data including the first subframe. In doing so, a data transmission characteristic of a base station or a terminal is standardized, and a reference signal such as a DRS can be correctly identified.

Abstract: Embodiments of the present invention provide an uplink control channel sending method, an uplink control channel receiving method, and an apparatus. The sending method includes: receiving, by terminal device, downlink data from a network device in each subframe in a first subframe set; obtaining, by the terminal device, first downlink control information from the network device; and sending, by the terminal device, a target physical uplink control channel in a first uplink subframe according to an indication of the first downlink control information.

Abstract: In an uplink information sending method, a terminal device receives scheduling information sent by an access network device in a first time unit. The terminal device determines a second time unit and a first time offset. The second time unit is after the first time unit, and the second time unit carries downlink information sent by the access network device. The terminal device further determines a third time unit. The third time unit is a time unit that is offset from the second time unit by the first time offset. Further, the terminal device sends first uplink information scheduled by using the scheduling information in the third time unit. In this way, information transmission flexibility and reliability can be improved.

Abstract: A data transmission method and device, the method including determining, by a first device, a data transmission pattern, where the data transmission pattern corresponds to a time domain resource, and sending, by the first device, one or more reference signals R and at least one physical channel D on the time domain resource according to the data transmission pattern, where the data transmission pattern indicates symbols that are in the time domain resource and that are used for the one or more reference signals R and the at least one physical channel D.

Abstract: The present disclosure provides a method and an apparatus for transmitting control data. The method includes: determining, by a terminal device, at least one target cell from at least one unlicensed cell; and transmitting, by the terminal device, control data in the target cell. This can implement transmission of the control data on an unlicensed spectrum resource, so that the control data can be transmitted not merely on a licensed spectrum resource, and communication reliability and user experience can be improved. In addition, this can reduce licensed spectrum resource overheads in a communication process, and increase a capacity of a communications system that has a limited quantity of licensed spectrum resources.

Abstract: Embodiments of this disclosure provide an indication information transmission method and apparatus, and relate to the communications field. The method includes: receiving, by a terminal side communications apparatus, configuration information sent by an access network side communications apparatus, where the configuration information includes identification information of at least one cell; and detecting, by the terminal side communications apparatus by using a length of a first time as a granularity, first indication information sent by the access network side communications apparatus, where the first indication information is used to indicate a transmission structure corresponding to one or more time units included in a second time of the at least one cell identified by the identification information, and the length of the first time is different from a length of the second time.

Abstract: A communication method includes receiving, by a terminal device, on an unlicensed frequency band, downlink control information sent by a network device, where the downlink control information is within a first time unit in a candidate time unit set of a plurality of candidate time unit sets, where the candidate time unit set is at least one of a plurality of consecutive time units, and wherein the candidate time unit sets are at equal intervals in the plurality of consecutive time units. The method further includes determining, by the terminal device according to a time at which the downlink control information is sent, a time window for sending uplink information, and sending, by the terminal device, the uplink information within the time window, where a start moment T1 of the time window is within the first time unit or a second time unit immediately after the first time unit.

Abstract: The method disclosed in present embodiments includes: a terminal device receives downlink data in at least one downlink burst; determines that a first downlink subframe set is associated with a first uplink subframe, where the first downlink subframe set belongs to the at least one downlink burst, the first uplink subframe is used to send first feedback information corresponding to the first downlink subframe set, the first uplink subframe is in a first uplink burst, and the first uplink burst follows the at least one downlink burst; determines a first feedback information codebook, and determines the first feedback information based on the codebook; determines a first uplink channel in the first uplink subframe; and sends the first feedback information to the access network device on the first uplink channel. According to the method, the terminal device can properly sends ACK/NACK feedback information in a U-LTE scenario.

Abstract: Embodiments of the present disclosure relate to a measurement method, user equipment, a network side device, and a measurement apparatus. The method includes: determining, by user equipment, a measurement time set and first measurement configuration information that are corresponding to a first target frequency band, where the first measurement configuration information is configuring the user equipment to perform wireless condition measurement according to identification information of a target cell; determining a status of using the first target frequency band by the target cell corresponding to the identification information; and measuring, in the measurement time set according to the status of using the first target frequency band by the target cell, a wireless condition of the first target frequency band corresponding to the target cell, to obtain a measurement result.

Abstract: A method for measuring channel state information and a related device are disclosed. The method may include: determining, by a terminal device, a first frequency resource, where Z subbands included in the first frequency resource are determined by a network device in a first time unit in Y subbands included in a second frequency resource, the second frequency resource is a downlink frequency resource allocated by the network device to the terminal device, the Y subbands are included in the X subbands, and the second frequency resource corresponds to one piece of wideband channel state information CSI, where X?Y?2, Y>Z?1, and X, Y, and Z are all integers; determining, by the terminal device, the wideband CSI based on the first frequency resource; and sending, by the terminal device, the wideband CSI to the network device in a second time unit.

Abstract: The present disclosure relates to synchronization signal block transmission methods, access network devices, and terminal devices. One example method includes determining, by an access network device, a resource set used for transmission of a synchronization signal block set in a preset time window, where the synchronization signal block set includes a first synchronization signal block and L second synchronization signal blocks, L?1, the resource set includes a plurality of first candidate resources used to transmit the first synchronization signal block and at least L second candidate resources used to transmit the L second synchronization signal blocks, and at least one of sending, by the access network device, the first synchronization signal block to a terminal device on a first resource in the plurality of first candidate resources based on a CCA result, or respectively sending N second synchronization signal blocks to the terminal device on N second resources.

Abstract: This application provides a method and device for generating a subframe, a method for determining a subframe and a user equipment. The method for generating a subframe includes: determining, by a first device, patterns of at least two special subframes used in a broadcast control channel modification period, where guard period GP durations of the at least two special subframes are different; and generating, by the first device, the at least two special subframes. The method enhances flexibility and improves a system resource utilization rate.

Abstract: Embodiments of the present disclosure provide a data channel sending method. In the method, a base station starts a clear channel assessment (CCA) on a data channel for a to-be-sent data channel. If the CCA on the data channel succeeds, the base station sends the data channel in a first subframe within a time window, where the data channel performs rate matching based on a reference signal (RS). The RS includes a first RS or a second RS. The first RS occupies continuous OFDM symbols in a subframe, and the second RS occupies discontinuous OFDM symbols in a subframe. The time window is a preset time window used to send the first RS, and the first RS is used by a user equipment (UE) to perform cell identification and/or a radio resource management (RRM) measurement on a cell served by the base station.

Abstract: This application provides an uplink data transmission method and apparatus. The method includes: determining, by a terminal device, process status information, where the process status information includes a use status of at least one HARQ process, and the use status of the HARQ process is any one of the following: the HARQ process is not used to send uplink data, the HARQ process is used to send uplink data and no feedback information is received, or the HARQ process is used to send uplink data and feedback information is received; and sending, by the terminal device, the process status information to an access network device.

Abstract: Embodiments of this application disclose a data transmission method and a related device. The method includes: repeatedly transmitting, by a first device, first data to a second device within a first time unit set, where the first data is determined based on a first redundancy version and to-be-transmitted system bits, the first time unit set includes K time units, K?3, and K is an integer; and when a first condition is met, stopping, by the first device, transmitting the first data in the Mth time unit, where 2?M?K, and M is an integer.

Abstract: Embodiments of the present disclosure provide a data channel sending method. In the method, a base station starts a clear channel assessment (CCA) on a data channel for a to-be-sent data channel. If the CCA on the data channel succeeds, the base station sends the data channel in a first subframe within a time window, where the data channel performs rate matching based on a reference signal (RS). The RS includes a first RS or a second RS. The first RS occupies continuous OFDM symbols in a subframe, and the second RS occupies discontinuous OFDM symbols in a subframe. The time window is a preset time window used to send the first RS, and the first RS is used by a user equipment (UE) to perform cell identification and/or a radio resource management (RRM) measurement on a cell served by the base station.

Abstract: The present disclosure relates to example data transmission methods, user equipment, and access network devices in an LAA-LTE system. An example data receiving method includes determining, by user equipment, first information of a first cell. The user equipment determines a first subframe based on the first information, where a downlink data transmission length of the first subframe is less than a first threshold. The user equipment then determines a data transmission characteristic of the cell in the first subframe based on a preset condition, so as to receive, based on the data transmission characteristic, data including the first subframe. In doing so, a data transmission characteristic of a base station or a terminal is standardized, and a reference signal such as a DRS can be correctly identified.

Abstract: A method and an apparatus are used to configure a position of a transmission frequency resource according to a synchronization relationship between devices, includes: adjusting, by a first device, synchronization according to synchronization information of a second device, in a case in which the first device is synchronous with the second device, or the second device can adjust a configured frequency resource, configuring a frequency resource close to an edge of a frequency band, where the frequency resource is used to transmit data, and notifying first user equipment; in a case in which the devices are synchronous, adjusting, by the first device and the second device, a start moment or an end moment of transmitting or receiving a signal; and using, by the first device in a manner of extending a bandwidth of a carrier frequency or a manner of carrier aggregation.

Abstract: Embodiments of the present invention provide a data transmission method and a data transmission device. The data transmission device includes: a detection unit, configured to detect a first signal in a first cell; a determining unit, configured to determine a reference time point according to a first sequence of the detected first signal, where the reference time point is located in a first subframe of the first cell; where the determining unit is further configured to determine a position of a data channel according to the determined reference time point; and a receiving unit, configured to receive, according to the position of the data channel, control data and/or service data carried on the data channel. According to the embodiments of the present invention, resource utilization can be improved.