Carrier aggregation method and device in wireless communication system

    公开(公告)号:US10779326B2

    公开(公告)日:2020-09-15

    申请号:US16316412

    申请日:2017-07-19

    Abstract: The present invention relates to 5G or pre-5G communication system for supporting a higher data transmission rate after 4G communication system such as LTE. The present invention provides a carrier aggregation method. A method of a base station, according to the present invention, comprises a step for: transmitting and receiving data to and from a terminal by means of a first carrier corresponding to a first bandwidth; transmitting to the terminal, by means of the first carrier, configuration information comprising information for an initial access to a second carrier corresponding to a second bandwidth; and transmitting and receiving data to and from the terminal by means of the second carrier on the basis of the configuration information.

    Apparatus and method for transmitting and receiving phase compensation reference signal

    公开(公告)号:US10693536B2

    公开(公告)日:2020-06-23

    申请号:US16560412

    申请日:2019-09-04

    Abstract: A 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) are provided. 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. The method for transmitting and receiving a phase compensation reference signal (PCRS) to compensate for phase noise. The method may determine whether a first precoding is applied to a demodulation reference signal (DMRS) and the PCRS to be transmitted to a terminal. The base station may also generate the DMRS and the PCRS, based on whether the first precoding is applied to the DMRS and the PCRS, and transmit data, the DMRS, and the PCRS to the terminal.

    Method and apparatus for transmitting and receiving feedback in wireless communication system

    公开(公告)号:US10305637B2

    公开(公告)日:2019-05-28

    申请号:US15477600

    申请日:2017-04-03

    Abstract: The present 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 feedback method of a terminal, receiving a first subframe from a base station, detecting, from the first subframe, downlink control information (DCI) including transmission timing information and frequency resource information for feedback, creating feedback information for data decoding of the first subframe to be transmitted in a second subframe determined based on the DCI, and transmitting the feedback information, based on a time resource indicated from the transmission timing information and a frequency resource indicated from the frequency resource information in the DCI.

    Method and device for transmitting and receiving uplink control information in wireless communication system

    公开(公告)号:US11997684B2

    公开(公告)日:2024-05-28

    申请号:US17971884

    申请日:2022-10-24

    CPC classification number: H04W72/21 H04W72/51

    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. The disclosure provides a method by which a terminal, during uplink signal transmission: receives, from a base station, first information for indicating transmission of uplink control information and/or data in a specific subframe; receives, from the base station, second information for indicating transmission of the uplink control information and/or the data in the specific subframe; and determines the uplink control information and/or the data to be transmitted in the specific subframe on the basis of a capability of the terminal and transmits the determined uplink control information and/or data in the specific subframe.

    Apparatus and method for transmitting and receiving phase compensation reference signal

    公开(公告)号:US11152982B2

    公开(公告)日:2021-10-19

    申请号:US16905184

    申请日:2020-06-18

    Abstract: A 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) are provided. 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. The method for transmitting and receiving a phase compensation reference signal (PCRS) to compensate for phase noise. The method may determine whether a first precoding is applied to a demodulation reference signal (DMRS) and the PCRS to be transmitted to a terminal. The base station may also generate the DMRS and the PCRS, based on whether the first precoding is applied to the DMRS and the PCRS, and transmit data, the DMRS, and the PCRS to the terminal.

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