METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING REFERENCE SIGNAL IN MILLIMETER WAVE WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20220103318A1

    公开(公告)日:2022-03-31

    申请号:US17310639

    申请日:2020-02-17

    Abstract: The disclosure relates to a method and device for communication between a base station (BS) and a user equipment (UE) in a millimeter wave wireless communication system. An operating method of a BS in a wireless communication system according to an embodiment may include: transmitting, via higher layer signaling, one or more reference signal configurations to a UE so as to transmit a reference signal by using a single carrier; transmitting, to the UE, information about a reference signal configuration to be used for the UE from among the one or more reference signal configurations, via at least one of the higher layer signaling, a physical downlink control channel (PDCCH), or a media access control control element (MAC CE); and transmitting, to the UE, the reference signal via a data channel, based on the information about the reference signal configuration to be used for the UE.

    METHOD AND DEVICE FOR TRANSMITTING/RECEIVING DOWNLINK CONTROL CHANNEL FOR WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20210266944A1

    公开(公告)日:2021-08-26

    申请号:US17260937

    申请日:2019-07-19

    Abstract: The present disclosure relates to a communication technique for converging IoT technology with a 5G communication system for supporting higher data transmission rates after 4G systems, and a system for same. The present disclosure may be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail businesses, security and safety-related services, and the like) based on 5G communication technology and IoT-related technology. The present invention discloses a method and device for efficiently transmitting control information for multiple pieces of data transmitted to a terminal in order to efficiently support cooperative communication. Specifically, a method for a terminal in a wireless communication system to receive downlink data includes steps for: detecting first downlink control information (DCI) scrambled by a cell-radio network temporary identifier (C-RNTI); detecting second DCI scrambled by an RNTI for cooperative communication, when the first DCI has been detected; determining, when the second DCI has been detected, whether the second DCI is valid; and receiving, according to the first DCI and the second DCI, two or more pieces of downlink data when the second DCI has been determined to be valid.

    METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING SIGNAL IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20210167910A1

    公开(公告)日:2021-06-03

    申请号:US17045369

    申请日:2018-04-12

    Abstract: Disclosed are: a communication technique for merging, with IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system; and a system therefor. The present disclosure can be applied to intelligent services (for example, smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail, security, and safety-related services, and the like) on the basis of 5G communication technology and IoT-related technology. Disclosed are a method and an apparatus for transmitting a signal by using a non-orthogonal frequency division multiplexing (NOFDM) scheme and, particularly, the present invention presents a method and an apparatus for transmitting a control signal and a reference signal by using an OFDM scheme and for transmitting data by using the NOFDM scheme.

    METHOD AND APPARATUS FOR CONFIGURING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20200266964A1

    公开(公告)日:2020-08-20

    申请号:US16791365

    申请日:2020-02-14

    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. A method performed by a terminal in a communication system is provided. The method includes receiving, from a base station, demodulation reference signal (DMRS) configuration information using higher layer signaling; receiving, from the base station, downlink control information for transmitting uplink data, the downlink control information including information on DMRS and resource allocation information for the uplink data; identifying a number of at least one DMRS symbol and respective position of the at least one DMRS symbol based on the information on DMRS and resource allocation information; and transmitting, to the base station, the uplink data and the DMRS based on the identified respective position of the at least one DMRS symbol.

    DM-RS TRANSMISSION METHOD AND DEVICE IN WIRELESS MOBILE COMMUNICATION SYSTEM

    公开(公告)号:US20200235874A1

    公开(公告)日:2020-07-23

    申请号:US16489661

    申请日:2018-02-28

    Abstract: Disclosed are: a communication technique for merging, with IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system; and a system therefor. The present disclosure can be applied to intelligent services (for example, smart home, smart building, smart city, smart car or connected car, health care, digital education, retail, security and safety-related services, and the like) on the basis of 5G communication technology and an IoT-related technology. The present invention provides a method by which a base station transmits a DM-RS in a wireless mobile communication system supporting a first transmission time interval (TTI) and a second TTI, comprising the steps of: checking a TTI used in a downlink control channel transmission; determining, as a first pattern, a DM-RS for the downlink control channel if the TTI is the first TTI, and determining, as a second pattern, a DM-RS for the downlink control channel if the TTI is the second TTI; and transmitting, to the terminal, the downlink control channel and the DM-RS according to the determination.

    METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING FEEDBACK FOR COOPERATIVE COMMUNICATION SYSTEM

    公开(公告)号:US20200154447A1

    公开(公告)日:2020-05-14

    申请号:US16738431

    申请日:2020-01-09

    Abstract: A method and an apparatus for transmitting and receiving a feedback signal in a cellular mobile communication system is provided. The method of transmitting feedback in a Cooperative Multi-Point (CoMP) system, includes receiving feedback set information including allocation information of a Channel Status Information Reference Signal (CSI-RS) transmitted for estimating a channel of a User Equipment (UE), receiving IDentification (ID) information for identifying a CoMP set including CSI-RS allocation information from a cell operating in a CoMP mode, extracting the CoMP set using the ID information and a feedback set, detecting a first feedback mode and first feedback timing with a first CSI-RS not included in the CoMP set among CSI-RSs included in the feedback set, and generating and transmitting feedback with respect to the first CSI-RS according to the detected first feedback mode and the first feedback timing.

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