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

    公开(公告)号:US20220007305A1

    公开(公告)日:2022-01-06

    申请号:US17382924

    申请日:2021-07-22

    Abstract: 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 APPARATUS FOR SUPPORTING A SUPPLEMENTARY UPLINK FREQUENCY IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20210227590A1

    公开(公告)日:2021-07-22

    申请号:US17221301

    申请日:2021-04-02

    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 COMMUNICATION IN NEXT-GENERATION MOBILE COMMUNICATION SYSTEM

    公开(公告)号:US20210160952A1

    公开(公告)日:2021-05-27

    申请号:US17168710

    申请日:2021-02-05

    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 for operating a terminal is provided. The method includes receiving a first radio resource control (RRC) message including information for RRC connection suspension, maintaining a signaling radio bearer (SRB) 0 and suspending a data radio bearer (DRB) and at least one other SRB based on the first RRC message, transmitting, to a base station, a second RRC message for requesting RRC connection resumption through the SRB0, receiving, from the base station, a third RRC message for the RRC connection resumption through an SRB1, and resuming an SRB2 and the DRB based on the third RRC message.

    METHOD AND DEVICE FOR PERFORMING HANDOVER IN COMMUNICATION SYSTEM

    公开(公告)号:US20210092651A1

    公开(公告)日:2021-03-25

    申请号:US16603564

    申请日:2018-04-09

    Abstract: Disclosed is a 5G or pre-5G communication system for supporting a data transmission rate higher than that of a 4G communication system such as an LTE. A method of a terminal according to the present invention comprises: receiving a signal from a primary cell by using a first RF chain and receiving a signal from a second cell by using a second RF chain; deactivating the secondary cell in case of receiving a message for indicating a handover from the primary cell; performing a synchronization with a target cell by using the second RF chain while transmitting and receiving a signal with the primary cell by using the first RF chain; and receiving the signal from the target cell by using the second RF chain after performing the synchronization.

    METHOD AND APPARATUS FOR CONFIGURING PDCP DEVICE AND SDAP DEVICE IN NEXT-GENERATION MOBILE COMMUNICATION SYSTEM

    公开(公告)号:US20200178113A1

    公开(公告)日:2020-06-04

    申请号:US16615301

    申请日:2018-06-05

    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 invention suggests a method and an operation for configuring a PDCP layer and a service data association protocol (SDAP) layer, thereby facilitating an efficient flow-based QoS process.

    METHOD AND APPARATUS FOR REPORTING SELECTED PLMN OF RRC-INACTIVE MODE UE IN NEXT-GENERATION COMMUNICATION SYSTEM

    公开(公告)号:US20200092779A1

    公开(公告)日:2020-03-19

    申请号:US16573003

    申请日:2019-09-17

    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 by a user equipment (UE) in a wireless communication system includes reselecting another equivalent public land mobile network (PLMN) in an inactive state, transmitting, to a base station, a radio resource control (RRC) resume request message including a resume cause configured to mobile originated (mo)-signaling in case that a radio access network (RAN)-based notification area update procedure is triggered, and receiving, from the base station, an RRC resume message.

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