Abstract: Embodiments of the present disclosure provide a communication method and device for uplink power control. The method comprises receiving a plurality of sets of power control parameters from a network device, each of the plurality of sets being associated with a corresponding one of a plurality of sets of candidate beam patterns for the terminal device. The method further comprises selecting, based on a beam pattern for the terminal device, one of the plurality of sets of power control parameters for uplink transmit power control, the beam pattern for the terminal device being included in the set of candidate beam pattern that is associated with the selected set of power control parameters.

Abstract: Embodiments of the present invention provide a method for reporting power headroom in support of multiple link connections.

Abstract: Embodiments of the present invention provide methods and devices for secondary base station change in a dual connectivity system. The method comprises: determining, at a secondary base station, to initiate secondary base station change procédure; sending, at the secondary base station, a secondary base station change request to a master base station based on the détermination; and receiving a secondary base station change request acknowledgement from the master base station, wherein the secondary base station change procedure is initiated by the secondary base station.

Abstract: The present invention provides a method, base station, and dual connectivity system for providing service to handover of a user equipment. Through releasing and adding operations of the secondary base station and solving the data transmission issue in the process, the present invention provides a solution for handover of the user equipment between cells or base stations in a plurality of cases in a dual connectivity system.

Abstract: An objective of the present invention is to provide a method and apparatus for processing RLC/PDCP entities at a user equipment in a dual connectivity system; when an uplink radio bearer is reconfigured from a first uplink bearer type between a user equipment and a primary and/or secondary base station into a second uplink bearer type between the user equipment and the secondary and/or primary base station, an RLC entity of the user equipment performing first uplink bearer type between a user equipment corresponding processing; the RLC entity transmitting indication information to a corresponding PDCP entity based on the processing; the PDCP entity performing processing based on the indication information, and transmitting PDCP PDU data corresponding to the uplink radio bearer through RLC entity corresponding to the second uplink bearer type.

Abstract: The present invention relates to a method and an apparatus for uplink transmission power control (TPC) of multi-link connections. The method for uplink TPC of multi-link connections according to an embodiment of the present invention includes: a user equipment (UE) receiving a cell path loss compensating factor and a reference power level of each carrier of each connection in the multi-link connections, receiving an uplink transmission power adjustment amount of each carrier of each connection in the multi-link connections, and measuring a path loss of each carrier of each connection in the multi-link connections. According to the received cell path loss compensating factor, reference power level, and uplink transmission power adjustment amount, and the measured path loss, the UE calculates uplink transmission power of each carrier of each connection in the multi-link connections, and transmits data based on the uplink transmission power.

Abstract: The invention provides a method and apparatus for configuring a plurality of scheduling request triggers for a user equipment in a communication system. First, the base station determines a plurality of scheduling request triggers and a transmission type of each of the plurality of scheduling request triggers for the user equipment, based on the service characteristics of services of the user equipment; and then the base station transmits configuration information of the plurality of scheduling request triggers to the user equipment, the configuration information of the plurality of scheduling request triggers including the allocation way of the plurality of scheduling request triggers with respect to the services of the user equipment and the transmission type of each of the plurality of scheduling request triggers. The user equipment first receives the configuration information from the base station.

Abstract: Embodiments of the present invention disclose a flow control method and apparatus for an MeNB and an SeNB supporting radio bearer split in a dual connectivity system. The method comprises: receiving information related to an SeNB; and performing flow control with the SeNB based on the information and information related to the MeNB. Through the embodiments of the present invention, the flow control not only considers performing flow control according to middle-and-long terms channel and load conditions, but also cause the flow control to consider the rapid change of the channel and load through feeding back the transmission/service state.

Abstract: Embodiments of the present invention provide a method and apparatus for radio resource control connection and a method and an apparatus for solving radio link degradation, wherein user equipment (UE) may establish radio connections to two/plural cells. The method comprises: determining that at least one of the radio connections established by the UE and two/plural cells occur connection failure; and executing radio resource control (RRC) connection to implement dual/plural connectivity with the two/plural cells.

Abstract: The present invention discloses a method and an apparatus for establishing a radio bearer, and specifically to a method and an apparatus for establishing a data or signaling bearer in a radio communication system supporting multi-connectivity, wherein the method of establishing the data bearer comprises receiving information related to the data bearer, determining configuration information of respective protocol layers in a user plane protocol stack, that is established at at least one of the macro base station and the small base station for the data bearer, according to the related information and the user plane protocol stack, and sending to the user equipment a radio resource control message including the configuration information to establish the data bearer.

Abstract: The invention proposes a method and an apparatus for transmitting a buffer status report in a wireless network, where a user equipment is configured with a plurality of component carriers, the user equipment obtains an amount of data to be transmitted after respective media access layer protocol data units corresponding to the respective component carriers are generated, generates the uplink buffer status report message according to the amount of data to be transmitted, and reports the uplink buffer status report message to a base station serving the user equipment. The invention address the problem of how to report buffer status information when there are a plurality of media access layer protocol data units in a transport time interval. With the solution of the invention, the base station can definitively know how many uplink resources can be allocated for the user equipment to guarantee more efficient scheduling.

Abstract: One objective of the present invention is to provide uplink scheduling information reporting apparatus and System supporting multi-connectivity. Herein, a UE connected to multiple eNBs, the UE receives trigger configuration information about buffer status report of a logical channel group that a corresponding radio bearer belongs to, and radio bearer configuration information and uplink resource configuration information respectively corresponding to each of the multiple eNBs, when the BSR trigger condition of at least one of the multiple eNBs is satisfied, transmit to a corresponding eNB the buffer status report of the logical channel group that its corresponding radio bearer belongs to, so as to support uplink scheduling report in multi-connectivity.

Abstract: Embodiments of the present invention provide a method for reporting power headroom in support of multiple link connections.

Abstract: The present invention relates to a method and an apparatus for uplink transmission power control (TPC) of multi-link connections. The method for uplink TPC of multi-link connections according to an embodiment of the present invention includes: a user equipment (UE) receiving a cell path loss compensating factor and a reference power level of each carrier of each connection in the multi-link connections, receiving an uplink transmission power adjustment amount of each carrier of each connection in the multi-link connections, and measuring a path loss of each carrier of each connection in the multi-link connections. According to the received cell path loss compensating factor, reference power level, and uplink transmission power adjustment amount, and the measured path loss, the UE calculates uplink transmission power of each carrier of each connection in the multi-link connections, and transmits data based on the uplink transmission power.

Abstract: The present invention proposes a distributed probabilistic dynamic interference coordination scheme to decrease or eliminate inter-cell interference, wherein the mechanism of ALOHA is introduced into the dynamic interference coordination. According to the first aspect of the present invention, a resource scheduling method is proposed, comprising: selecting resource to be scheduled from a scheduling list; selecting a first user equipment to be scheduled from the scheduling list; allocating the selected resource to the first user equipment by probability of p, wherein 0?p?1, if the first user equipment is of edge user. The present invention further proposes a scheduler implementing the aforesaid resource scheduling method and a base station (BS) comprising the aforesaid scheduler.

Abstract: The present application discloses a method and device for transmitting and receiving a power headroom report, wherein the method for transmitting a power headroom report comprises: forming, at a user equipment, a power headroom report specific to each carrier component; and transmitting the power headroom report to a base station. By implementing the method and device disclosed by the present application, a complete power headroom reporting mechanism can be provided to a LTE-A system having multiple new features. In addition, by receiving the power headroom report specific to each carrier component, the base station can further derive how many resource units need to be allocated to the user equipment, and a corresponding modulation and coding scheme so as to perform an effective resource scheduling and guarantee transmission quality of wireless links.

Abstract: A method and an apparatus for optimizing a user plan operation in a wireless communication system based on carrier aggregation are provided in the present invention. Firstly, a user equipment receives a downlink carrier component removal signaling from a base station, the downlink carrier component removal signaling is used to indicate a removed downlink carrier component; then, the user equipment, according to the received downlink carrier component removal signaling, stops the pending HARQ procedures of the removed downlink carrier component and flushes the HARQ receiving buffer related to the removed downlink carrier component and/or stops a re-ordering procedure and/or generates a status report and sends the status report to the base station, wherein the status report is used to indicate the base station to perform retransmission and inform the base station of the data needed to be retransmitted.

Abstract: The invention provides a method and apparatus for configuring a plurality of scheduling request triggers for a user equipment in a communication system. First, the base station determines a plurality of scheduling request triggers and a transmission type of each of the plurality of scheduling request triggers for the user equipment, based on the service characteristics of services of the user equipment; and then the base station transmits configuration information of the plurality of scheduling request triggers to the user equipment, the configuration information of the plurality of scheduling request triggers including the allocation way of the plurality of scheduling request triggers with respect to the services of the user equipment and the transmission type of each of the plurality of scheduling request triggers. The user equipment first receives the configuration information from the base station.

Abstract: The invention provides a solution to discover a small cell in a heterogeneous communication network. A macro base station (10) judges whether a user equipment (20) has approached to a target region (S111, S112, S120) that includes one or more candidate small cells based upon stored location range information of all candidate small cells in a macro cell and estimated position information of the user equipment and judges (S130) whether to instruct the user equipment to perform a periodical measurement on the one or more candidate small cells to discover small cells, and if so, obtains density information (S141) that indicates a density of the candidate small cells in the target region, determines (S142) an interval for the periodical measurement of the user equipment based upon the obtained density information and transmits (S143, S210) a first signaling to the user equipment to instruct the user equipment to perform the periodical measurement at the determined interval.

Abstract: In order to solve the technical problem that the discontinuous reception (DRX) decreases the accuracy and reliability of cell handover measurement, the invention proposes methods implementing a configuration of DRX and measurement in the UK and the EnodeB equipment. The method comprises, determining that a neighboring cell is discovered, the UE updates the DRX configuration, and the eNodeB equipment update the DRX configuration synchronously with the UE; the UE implements a measurement used for handover with respect to the neighboring cell based on the updated DRX configuration, and transmits a measurement report to the eNodeB equipment serving the UE, the eNodeB equipment receives the measurement report transmitted by the UE. The flexibility of measurement is improved. Preferably, the updated DRX configuration matches with the measurement opportunity, which can provide more accurate and reliable measurement results.