METHOD AND APPARATUS FOR SUPPORTING A SUPPLEMENTARY UPLINK FREQUENCY IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20220346155A1

    公开(公告)日:2022-10-27

    申请号:US17862053

    申请日:2022-07-11

    Abstract: The disclosure relates to a communication technique and a system thereof that fuses a 5G communication system for supporting higher data rate after a 4G system. The disclosure is enabled to 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, etc.) based on 5G communication technology and IoT related technology. A method for performing a random access by a terminal is provided. The method includes receiving information for performing a random access from a base station (BS), determining a frequency band to perform the random access among a first frequency band and a second frequency band based on the information for performing the random access, and transmitting a first random access preamble to the BS on the determined frequency band.

    METHOD AND APPARATUS FOR SELECTING CORE NETWORK SUITABLE FOR SERVICE IN NEXT GENERATION MOBILE COMMUNICATION SYSTEM

    公开(公告)号:US20210204206A1

    公开(公告)日:2021-07-01

    申请号:US16650173

    申请日:2018-09-27

    Abstract: The present invention relates to a communication technique for combining IoT technology with 5G communication systems for supporting higher data transmission rates than 4G systems, and to a system therefor. The present disclosure can be applied, on the basis of 5G communication technology and IoT-related technology, to intelligent services such as smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail business, security- and safety-related services. The present invention relates to a method for configuring temporal ordering of uplinks in a wireless communication system, more specifically, in 3GPP 5G New Radio (NR).

    METHOD AND DEVICE FOR EFFICIENT COMMUNICATION IN NEXT GENERATION MOBILE COMMUNICATION SYSTEM

    公开(公告)号:US20200229111A1

    公开(公告)日:2020-07-16

    申请号:US16631912

    申请日:2018-05-29

    Abstract: The present disclosure relates to a communication technique for convergence of a 5G communication system for supporting a higher data transmission rate beyond a 4G system with an IoT technology, and a system therefor. The present disclosure may be applied to an intelligent service (for example, smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, security and safety-related service, etc.) on the basis of a 5G communication technology and an IoT-related technology. The present disclosure relates to a method of a terminal, the method comprising the steps of: determining a path loss reference beam on the basis of whether information indicating the path loss reference beam is received; obtaining a path loss on the basis of the path loss reference beam; obtaining a power headroom (PH) on the basis of the path loss; and transmitting a power headroom report (PHR) including the PH.

    METHOD AND DEVICE FOR RE-ESTABLISHING PDCP IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20200221526A1

    公开(公告)日:2020-07-09

    申请号:US16638085

    申请日:2018-08-09

    Abstract: Disclosed are a communication technique for merging IoT technology with 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. The present invention relates to operations of a terminal and a base station in a mobile communication system. The present invention provides a method by which a terminal re-establishes a PDCP in a wireless communication system, the method comprising the steps of: receiving a message including PDCP re-establishment information on a DRB from a base station in which an RRC connection is set up; checking whether the PDCP re-establishment information includes configuration information of an SDAP layer; and determining whether to perform a PDCP re-establishment procedure for changing the DRB operating as a PDCP of a first system into a PDCP of a second system on the basis of the checking result.

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