METHOD AND APPARATUS FOR HANDLING E-RAB SWITCH PROBLEM FOR DUAL CONNECTIVITY IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20190098538A1

    公开(公告)日:2019-03-28

    申请号:US16183002

    申请日:2018-11-07

    Abstract: A method and apparatus for handling evolved universal terrestrial radio access network (E-UTRAN) radio access bearer (E-RAB) switch failure for dual connectivity in a wireless communication system is provided. A master evolved NodeB (MeNB) in dual connectivity receives an E-RAB modification confirm message including a list of E-RABs failed to be modified from a mobility management entity (MME). The MeNB may keep old general packet ratio service (GPRS) tunneling protocol (GTP) tunnels for the failed E-RABs, and trigger a secondary eNB (SeNB) release procedure or a SeNB modification procedure for releasing the failed E-RABs. Alternatively, the MeNB may trigger an E-RAB release procedure for releasing the failed E-RABs.

    METHOD AND APPARATUS FOR MODIFYING RADIO BEARER IN CU-DU SPLIT SCENARIO

    公开(公告)号:US20190037631A1

    公开(公告)日:2019-01-31

    申请号:US16014390

    申请日:2018-06-21

    Abstract: Provided are a method of modifying a radio bearer for a user equipment by a distribution unit (DU) of a base station in a wireless communication system, and an apparatus supporting the method. The method may include: deciding to modify the radio bearer for the user equipment; transmitting information on the radio bearer to a central unit (CU) of the base station; receiving information on an accepted radio bearer from the CU of the base station; and modifying the accepted radio bearer.

    METHOD AND DEVICE FOR PROVIDING SYSTEM INFORMATION

    公开(公告)号:US20180338277A1

    公开(公告)日:2018-11-22

    申请号:US16048848

    申请日:2018-07-30

    Abstract: Provided are a method for a distributed unit (DU) of a base station (BS) to broadcast system information in a wireless communication system, and a device supporting the same. The method may include: receiving system information owned by a central unit (CU) of the BS from the CU of the BS; receiving a request for the system information from a user equipment (UE); receiving a message of a command to broadcast the system information from the CU of the BS; and broadcasting the requested system information.

    METHOD AND DEVICE FOR STOPPING SCPTM TRANSMISSION

    公开(公告)号:US20180234809A1

    公开(公告)日:2018-08-16

    申请号:US15762863

    申请日:2016-09-26

    Abstract: Provided is a method for a base station performing a multimedia broadcast multicast service (MBMS) session update in a wireless communication system, and a device supporting same. The base station may comprise: receiving, from a multi-cell coordination entity (MCE), a MBMS session update request message comprising a single-cell point-to-multipoint (SCPTM) transmission stop indication; and transmitting, to the MCE, a MBMS session update response message as a response to the MBMS session update request message.

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