Method and apparatus for minimizing interruption time of data transfer on handover in wireless communication network

    公开(公告)号:US11432212B2

    公开(公告)日:2022-08-30

    申请号:US16944792

    申请日:2020-07-31

    Abstract: To solve the problem wherein a terminal cannot perform data communication from a network from the time point of a terminal receiving a handover command (HO command) message from a base station controlling a source cell to the time point of a terminal receiving a handover complete (HO complete) message from a base station controlling a target cell, after the terminal transmits the handover command message to the base station controlling the source cell, the base station controlling the source cell transmits to the base station controlling the target cell whether or not the terminal supports a function of reducing the interruption time of data transfer, the terminal continues to perform data transmission/reception with the base station controlling the source cell, and after the terminal completes a random access procedure with the base station controlling the target cell, the base station controlling the source cell transmits an additional sequence number status transfer message to the base station controlling the target cell.

    Method and apparatus for minimizing interruption time of data transfer on handover in wireless communication network

    公开(公告)号:US10764799B2

    公开(公告)日:2020-09-01

    申请号:US16072300

    申请日:2017-01-17

    Abstract: To solve the problem wherein a terminal cannot perform data communication from a network from the time point of a terminal receiving a handover command (HO command) message from a base station controlling a source cell to the time point of a terminal receiving a handover complete (HO complete) message from a base station controlling a target cell, after the terminal transmits the handover command message to the base station controlling the source cell, the base station controlling the source cell transmits to the base station controlling the target cell whether or not the terminal supports a function of reducing the interruption time of data transfer, the terminal continues to perform data transmission/reception with the base station controlling the source cell, and after the terminal completes a random access procedure with the base station controlling the target cell, the base station controlling the source cell transmits an additional sequence number status transfer message to the base station controlling the target cell.

    Apparatus and method for transmitting or receiving signal using beamforming in wireless communication system

    公开(公告)号:US11271632B2

    公开(公告)日:2022-03-08

    申请号:US17074005

    申请日:2020-10-19

    Abstract: The disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). In a wireless communication system, a base station apparatus may include at least one transceiver, and at least one processor operatively coupled with the at least one transceiver. The at least one transceiver may transmit, to a terminal, configuration information associated with a primary beam and a secondary beam. The processor may determine the primary beam and the secondary beam based on feedback information regarding beams of the base station, received from the terminal. The at least one transceiver may be configured to transmit, to the terminal, indication information for identifying the primary beam and the secondary beam, perform communication with the terminal by using the primary beam, and perform communication with the terminal by using the primary beam and the secondary beam based on a determination of a change of a communication state for the primary beam.

    Interference control method and device in wireless communication system

    公开(公告)号:US10862604B2

    公开(公告)日:2020-12-08

    申请号:US15767866

    申请日:2016-10-19

    Abstract: Disclosed is a 5G or pre-5G communication system to be provided for supporting a data transmission rate higher than that of a 4G communication system such as LTE. According to one embodiment of the present invention, a method by which a device for adjusting the interference of a plurality of base stations transmits and receives data to and from the plurality of base stations comprises: receiving channel information of a terminal connected to one or more macro base stations or to one or more small base stations from the one or more macro base stations or the one or more small base stations; receiving ABS pattern information from the one or more macro base stations; generating, for each base station, interference control information for the one or more macro base stations or the one or more small base stations on the basis of the ABS pattern information and the channel information of the terminal connected to the one or more macro base stations or to the one or more small base stations; and transmitting, to each base station, the interference control information generated for each base station.

    Apparatus and method for transmitting and receiving signals in wireless communication system

    公开(公告)号:US10693696B2

    公开(公告)日:2020-06-23

    申请号:US15819633

    申请日:2017-11-21

    Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. In a wireless communication system according to an embodiment, a signal transmission method of a transmitting apparatus includes determining a phase for each predetermined frequency band unit, applying the determined phase to a signal generated for each predetermined frequency band unit, and transmitting the signal.

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