Method and apparatus for enhanced contention based random access procedure

    公开(公告)号:US10917879B2

    公开(公告)日:2021-02-09

    申请号:US15722629

    申请日:2017-10-02

    Abstract: A communication method and system for converging a fifth generation (5G) communication system for supporting higher data rates beyond a fourth generation (4G) system with a technology for Internet of things (IoT) are provided. The communication method and system 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 of a user equipment (UE) for performing a random access (RA) procedure is provided. The method includes transmitting a first message including a RA preamble and a UE identifier (ID) to a base station (BS), and receiving a second message including a sequence index of the RA preamble from the BS.

    Method and apparatus for cell barring in wireless communication system

    公开(公告)号:US10912010B2

    公开(公告)日:2021-02-02

    申请号:US16774391

    申请日:2020-01-28

    Inventor: Anil Agiwal

    Abstract: A method and apparatus for cell barring in a wireless communication system are provided. The method includes determining whether system information block type 1 (SIB1) is acquired from a cell, considering the cell as barred, if the acquiring the SIB1 fails, determining whether the cell is a licensed cell or an unlicensed cell and excluding the cell and other cells on a same frequency with the cell as a candidate for cell selection or reselection for a pre-defined period, if the cell is a licensed cell and cell selection or reselection to intra-frequency cells is not allowed.

    Method and apparatus for managing data communication in wireless communication network

    公开(公告)号:US10911977B2

    公开(公告)日:2021-02-02

    申请号:US16322916

    申请日:2017-08-01

    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.
    Embodiments herein disclose a UE for managing a data communication in a wireless communication network. The UE includes a DRB management unit configured to determine a DRB for transmitting a packet based on QoS flow identifier and a PDU session associated with the packet and mapping of the QoS flow identifiers to the DRBs for each established PDU session. The DRB management unit performs one of mapping the packet to an established non-default DRB if the list of one or more QoS flow identifiers associated with the DRB includes the QoS flow identifier of the packet and the DRB is associated with the PDU session of the packet, and mapping the packet to a default DRB associated with the PDU session of the packet if none of the established non-default DRBs is associated with the PDU session and the QoS flow identifier of the packet.

    System and method of identifying random access response

    公开(公告)号:US10904921B2

    公开(公告)日:2021-01-26

    申请号:US16000339

    申请日:2018-06-05

    Abstract: 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) is provided. The communication method and system include 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 includes transmitting a random access preamble on a physical random access channel (PRACH) transmission occasion from a base station, identifying a random access radio network temporary identifier (RA-RNTI) for receiving random access response (RAR) information based on a time related parameter, a frequency related parameter and an uplink carrier related parameter, and receiving scheduling assignment information scheduling a physical downlink shared channel (PDSCH) on a physical downlink control channel (PDCCH) based on the identified RA-RNTI from the base station.

    Method and system for signalling resource allocation information in an asymmetric multicarrier communication network

    公开(公告)号:US10772079B2

    公开(公告)日:2020-09-08

    申请号:US16198576

    申请日:2018-11-21

    Abstract: A method and system signal resource allocation information in an asymmetric multicarrier communication network. A MS communicates with a BS using asymmetric carriers consisting of at least one low frequency carrier (e.g., primary carriers) in a cellular band and at least one high frequency carrier secondary carriers) in a millimeter Wave band. In one embodiment, the BS allocates resources for one or more transmit time intervals in at least one of DL allocation interval of a secondary DL carrier and UL allocation interval of a secondary UL carrier for the MS, where the DL allocation interval spans one or more subframes of the secondary DL carrier and the UL allocation interval spans one or more subframes of the secondary UL carrier. The BS then transmits information regarding the allocated resources to the MS in a Packet Data Control Channel region of a subframe of the primary DL carrier.

    Location detection apparatus and method in communication system supporting device-to-device scheme

    公开(公告)号:US10531258B2

    公开(公告)日:2020-01-07

    申请号:US15999822

    申请日:2017-02-14

    Abstract: The present invention relates not only to a fourth-generation (4G) communication system, such as long-term evolution (LTE), but also to a fifth-generation (5G) or pre-5G communication system to be provided to support a higher data transfer rate. The present invention provides a method for a first device in a communication system supporting a device-to-device (D2D) scheme, the method comprising the steps of: when existence of a second D2D device, of which the location information needs to be detected, has been detected, transmitting a discovery request message which requests activation of at least one of an urgent discovery operation and a location measurement operation; receiving a discovery response message to the discovery request message from at least one device including the second device; and transmitting, to the second device, information related to execution of the location measurement operation.

    System and method of counter management and security key update for device-to-device group communication

    公开(公告)号:US10440565B2

    公开(公告)日:2019-10-08

    申请号:US15641850

    申请日:2017-07-05

    Abstract: A system and a method of counter management and security key update for device-to-device (D2D) communication are provided. The method includes creating by a user equipment, a new packet data convergence protocol (PDCP) entity for a service group wherein a service group is identified by a destination identifier (ID), determining if any PDCP entity of the service group exists or not, generating a new proximity service (ProSe) traffic key (PTK) from a ProSe group key (PGK) corresponding to the service group associated with the new PDCP entity, initializing a new packet counter associated with the service group to zero if the new PDCP entity is a first PDCP entity associated with the service group, generating a ProSe encryption key (PEK) from the PTK and encrypting data packets mapped to the new PDCP entity using the PEK and a packet counter associated with the service group.

    Method and apparatus for performing inter-carrier D2D communication

    公开(公告)号:US10440550B2

    公开(公告)日:2019-10-08

    申请号:US15230326

    申请日:2016-08-05

    Abstract: A system and method for use in 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) is disclosed. The method for performing a discovery transmission on a second carrier by a user equipment (UE) served by a primary cell (PCell) on a first carrier, includes receiving, from a base station, a signaling indicating that the UE read discovery resource configuration for the second carrier on the second carrier or that the UE should request the discovery resource configuration for the second carrier from the base station for acquiring the discovery resource configuration for the second carrier. The method also includes acquiring the discovery resource configuration based on the signaling.

Patent Agency Ranking