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 CSI REPORTING IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20190215086A1

    公开(公告)日:2019-07-11

    申请号:US16245579

    申请日:2019-01-11

    CPC classification number: H04B17/327 H04L1/0693 H04W24/10 H04W72/14 H04W76/11

    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 present disclosure provides a priority of CSI reporting in a mobile communication system, and provides a method in which a UE performs CSI reporting with high priority according to the priority. The method includes receiving channel state information (CSI) feedback configuration information from a base station; identifying a CSI reporting to be performed based on the CSI feedback configuration information, as a result of two CSI reportings overlapping; and performing the identified CSI reporting to the base station. The CSI reporting is identified based on types of CSI reportings, and a CSI reporting associated with a reference signal received power (RSRP) is prioritized over a CSI reporting that is not associated with the RSRP.

    METHOD AND APPARATUS FOR TRANSMITTING INFORMATION RELATED TO A REFERENCE SIGNAL

    公开(公告)号:US20170201360A1

    公开(公告)日:2017-07-13

    申请号:US15321506

    申请日:2016-09-02

    CPC classification number: H04L5/0048 H04B7/0452 H04J13/004 H04W72/0406

    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 method for transmitting/receiving signals in a mobile communication system according to an embodiment of the present invention includes: receiving control information; obtaining information related to the orthogonal cover code (OCC) length, based on the received control information; and receiving a reference signal, based on the information related to the OCC length. In a mobile communication system according to embodiments of the present invention, the base station transmits information related to a reference signal to a terminal, and the terminal receives the reference signal based on the received information, thereby improving the performance of channel estimation.

    METHOD AND DEVICE FOR TRANSMITTING DATA IN MOBILE COMMUNICATION SYSTEM

    公开(公告)号:US20250070937A1

    公开(公告)日:2025-02-27

    申请号:US18941523

    申请日:2024-11-08

    Abstract: Methods and apparatuses are provided in a wireless communication system. A terminal receives a feedback configuration including a configuration for a wideband or a subband from a base station. The terminal receives, from the base station, quasi co-location (QCL) information for a physical downlink control channel (PDCCH) via medium access control-control element (MAC-CE) signaling. The terminal receives, from the base station, the PDCCH based on the QCL information for the PDCCH. The terminal reports channel state information (CSI) for a CSI-RS resource configuration based on the PDCCH and the feedback configuration.

    METHOD AND APPARATUS FOR ADJUSTING CONTENTION WINDOW IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20240324005A1

    公开(公告)日:2024-09-26

    申请号:US18732036

    申请日:2024-06-03

    CPC classification number: H04W74/08 H04W72/0453

    Abstract: The disclosure relates to a communication method and system for converging a 5G communication system for supporting higher data rates beyond a 4G system with a technology for IoT. A method of a base station includes determining a contention window for a sub-band among multiple sub-bands based on hybrid automatic repeat request-acknowledgement feedbacks corresponding to physical downlink shared channels (PDSCHs) in a reference duration, identifying a number for the sub-band between zero and the contention window, sensing the sub-band based on the number and a defer duration, and performing a downlink transmission based on sensing the sub-band to be idle, wherein the reference duration starts from a beginning of a channel occupancy and ends at a first slot where at least one of the PDSCHs is transmitted, and wherein the PDSCHs in the reference duration include a PDSCH that partially but not fully overlaps with the sub-band among the multiple sub-bands and a PDSCH that fully overlaps with the sub-band among the multiple sub-bands.

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