Abstract: Embodiments of the present invention provide an uplink information transmission method, an apparatus, and user equipment. The base station configures a cell group for the UE, and sends configuration information of the cell group to the UE, so that the UE sends uplink information by using the cell group, to distribute the uplink information to a plurality of cells in the cell group for transmission, thereby implementing high-reliability transmission of the uplink information. In addition, applying the method to a scenario of co-site deployment of an unlicensed cell and a licensed cell can resolve a problem of a limited PCell capacity; applying the method to a scenario of non co-site deployment of an unlicensed cell and a licensed cell can implement uplink information transmission in such a scenario.

Abstract: A counting method and an apparatus are provided, and are applied to a carrier aggregation scenario of a first cell and a second cell. The method is: obtaining, by a terminal, a subframe K1 of the first cell and a subframe K2 of the second cell; determining, by the terminal, a PDCCH subframe from the subframe K2, and determining a monitoring subframe from the subframe K1 and the subframe K2; and controlling, by the terminal based on the PDCCH subframe, a DRX timer to perform counting, and monitoring a PDCCH based on the monitoring subframe to learn of arrival of downlink data and/or uplink grant, where the first cell is a cell on which idle channel detection needs to be performed, and the second cell is a cell on which no idle channel detection needs to be performed.

Abstract: Embodiments of the present application disclose a method, an apparatus, and a system for transmission control of multimedia broadcast multicast data. The method includes: according to a reference time, determining a scheduling period of suspending or resuming sending MBMS service data; and suspending or resuming sending the MBMS service data in the determined scheduling period. According to the embodiments of the present application, transmission control of the MBMS service data by a base station can be realized, which facilitates each base station in the same MBSFA range synchronously suspending or resuming sending the MBMS service data of the same service, thereby facilitating reducing interferences in the service.

Abstract: The present disclosure provides an uplink data transmission method at a terminal device, which includes: receiving in a subframe m, first resource allocation indication information from a network device; starting to listen on a channel of the LAA cell before the subframe m+n; if detecting, after a start moment of the first time unit and before a start moment of a tth time unit, that the channel is in an idle state, sending uplink data in tth to sth time units, where t is greater than 1 and less than or equal to s; and if detecting, before the start moment of the first time unit, that the channel is in the idle state, sending uplink data in the s time units. Therefore, the uplink data can be efficiently sent, and spectrum utilization of the LAA cell can be improved.

Abstract: Embodiments of the present disclosure provide a data transmission method, user equipment, and an access network device. UE transmits air interface data to an access network device by using a serving cell set including at least two core serving cells that can independently serve the UE to transmit data, and initiates an RRC connection re-establishment process to the access network device only when detecting that all core serving cells in the serving cell set are unavailable. Data transmission is performed by using an available serving cell to the greatest extent. In other words, data transmission can be performed by using any available core serving cell, to reduce the dependence of data transmission between serving cells and minimize possibility of data transmission interruption, thereby improving data transmission robustness.

Abstract: Embodiments of the present invention provide a data transmission method, a base station, and a user equipment (UE). The method includes: generating, by a first base station, downlink radio link control (RLC) protocol data units (PDUs); and sending, by the first base station, a first part of downlink RLC PDUs in the downlink RLC PDUs to a user equipment UE, and sending a second part of downlink RLC PDUs in the downlink RLC PDUs to a second base station, so that the second base station sends the second part of downlink RLC PDUs to the UE. Hence, the first base station and the second base station are capable of jointly sending data to the UE, thereby improving a peak rate and a throughput of the UE.

Abstract: A method for blindly detecting a physical downlink control channel and an apparatus are provided. The method includes: obtaining, by user equipment UE, configuration information sent by a base station, where the configuration information indicates a first cell in which downlink control information DCI does not need to be blindly detected and a second cell in which the DCI needs to be blindly detected in serving cells corresponding to the UE; and receiving, by the user equipment, the DCI sent by the base station in the second cell, and performing uplink transmission in the first cell based on the received DCI. The solution provided in the present disclosure resolves a prior-art problem that a quantity of PDCCH blind detections in an LTE system increases, and consequently hardware capabilities of many UEs cannot meet a communication requirement.

Abstract: The present invention discloses an uplink transmission method, a base station, and a terminal device, to implement uplink multiuser scheduling and multiuser resource multiplexing, and save resources. The method in embodiments of the present invention includes: obtaining, by a base station, first configuration information and instruction information, where the first configuration information is channel contention configuration information before uplink data is sent, the instruction information is information that instructs a terminal device to send a channel occupancy indication signal, and the channel occupancy indication signal is used to indicate that a current channel belongs to a radio access technology user; and sending, by the base station, the first configuration information and the instruction information to the terminal device, so that the terminal device sends the channel occupancy indication signal based on the first configuration information and the instruction information.

Abstract: Embodiments disclose a data processing method, and a communications device and system. The method includes: transmitting, by a communications device, a data packet to a receiving node by using an unlicensed spectrum resource and by using a hybrid automatic repeat request process. The method also includes determining, by the communications device, that the unlicensed spectrum resource is unavailable and an unsuccessfully-sent data packet exists in the hybrid automatic repeat request process. The method also includes triggering, by the communications device, ARQ retransmission for the unsuccessfully-sent data packet.

Abstract: Embodiments of this application relate to the communications field, and provide an uplink control information transmission method and an apparatus, to effectively ensure that when user equipment has both a PUCCH resource and a PUSCH resource, UCI can be transmitted to a base station. The method includes: pre-configuring, by user equipment, first uplink control information UCI and second UCI, where the first UCI is carried on a PUSCH resource of a first cell for transmission, the second UCI is carried on a PUCCH resource for transmission, and the first cell is a cell on which CCA or LBT detection needs to be performed; and sending, by the user equipment, the first UCI or the second UCI to a base station. The method and the apparatus are used for UCI transmission.

Abstract: A transmission resource obtaining method and user equipment are provided. The transmission resource obtaining method includes: receiving first configuration information sent by an base station, and obtaining request resources based on the first configuration information, where the request resources include a scheduling request (SR) resource and a physical random access channel (PRACH) resource; determining a target request resource from the request resources based on time information of user equipment, where the target request resource includes the SR resource and/or the PRACH resource; and sending an uplink resource request to the base station by using the target request resource. The technical solutions in the embodiments of the present invention help improve uplink transmission resource obtaining efficiency.

Abstract: A cross-carrier scheduling method, a feedback method, and an apparatus are provided. The cross-carrier scheduling method includes: receiving, by user equipment, TTI indication information that is sent by using a scheduling carrier; and determining, by the user equipment based on the TTI indication information, a position, in a scheduled carrier, of a TTI of a subframe in which a resource block scheduled by a base station is located.

Abstract: Embodiments of the present invention disclose a method, an apparatus, and a system for transmission control of multimedia broadcast multicast data. The method includes: according to a reference time, determining a scheduling period of suspending or resuming sending MBMS service data; and suspending or resuming sending the MBMS service data in the determined scheduling period. According to the embodiments of the present invention, transmission control of the MBMS service data by a base station can be realized, which facilitates each base station in the same MBSFA range synchronously suspending or resuming sending the MBMS service data of the same service, thereby facilitating reducing interferences in the service.

Abstract: The present disclosure provides a processing method and device for obtaining synchronization, where the method includes: selecting, by a UE, a preamble on a first Scell, and reporting information of the preamble to a base station by using a current PCell or a second SCell of the UE; receiving scheduling information of a random access response message or scheduling information of a conflict indication message delivered by the base station from a physical downlink control channel of the PCell, the second SCell or the first SCell by using a C-RNTI of the UE; and receiving the random access response message or the conflict indication message from a physical downlink shared channel according to the scheduling information of the random access response message or the scheduling information of the conflict indication message.

Abstract: Embodiments of the present invention provide an SI transmission method, a base station, and user equipment. The method includes: sending a request to a base station, where the request is used to request at least one type of SI of a first-type cell, and the first-type cell is a cell on which channel detection needs to be performed before data is sent; and receiving the at least one type of SI of the first-type cell.

Abstract: Embodiments of the present invention provide a data transmission method, a base station, and a user equipment (UE). The method includes: generating, by a first base station, downlink radio link control (RLC) protocol data units (PDUs); and sending, by the first base station, a first part of downlink RLC PDUs in the downlink RLC PDUs to a user equipment UE, and sending a second part of downlink RLC PDUs in the downlink RLC PDUs to a second base station, so that the second base station sends the second part of downlink RLC PDUs to the UE. Hence, the first base station and the second base station are capable of jointly sending data to the UE, thereby improving a peak rate and a throughput of the UE.

Abstract: The present invention provides an uplink power control method and an apparatus. The method includes: receiving, by a first base station, a power headroom report PHR sent by a terminal, where the PHR includes: power headroom PH of the terminal in a serving cell provided by the first base station, a quantity of physical resource blocks PRBs allocated by a second base station to the terminal in a serving cell provided by the second base station, and PH of the terminal in the serving cell provided by the second base station, and controlling, by the first base station according to the PHR, transmit power of the terminal in the serving cell provided by the first base station.

Abstract: Embodiments of the present invention provide a PHR sending method and a user terminal. The method includes: receiving, by a user terminal, information about an uplink resource set, where the uplink resource set includes uplink resources in at least two cells, TTI lengths of the two cells are different, each uplink resource in the uplink resource set is an uplink resource that is located within duration of a first TTI, and the first TTI is a TTI in a cell that has a maximum TTI length and in which the user terminal is located; determining, by the user terminal, a target uplink resource, where the target uplink resource is an uplink resource that has an earliest start time and that is located within the duration of the first TTI; and sending, by the user terminal, a power headroom report on the target uplink resource.

Abstract: Embodiments of the present invention provide a method and a device for obtaining a secondary timing advance. The method includes: after a secondary cell activation command is received or after a secondary cell is activated, if a secondary time alignment timer TAT of the secondary cell does not run, initiating, by a terminal, a random access procedure; and obtaining, by the terminal, the secondary TA according to a TA received in the random access procedure. With the method and the device for obtaining a timing advance according to embodiments of the present invention, a terminal initiates a random access procedure to obtain a secondary timing advance after the terminal receives a secondary cell activation command sent by a base station or after a secondary cell is activated, thereby saving signaling overhead and system resources.

Abstract: The present disclosure provides a processing method and device for obtaining synchronization, where the method includes: selecting, by a UE, a preamble on a first Scell, and reporting information of the preamble to a base station by using a current PCell or a second SCell of the UE; receiving scheduling information of a random access response message or scheduling information of a conflict indication message delivered by the base station from a physical downlink control channel of the PCell, the second SCell or the first SCell by using a C-RNTI of the UE; and receiving the random access response message or the conflict indication message from a physical downlink shared channel according to the scheduling information of the random access response message or the scheduling information of the conflict indication message.