公开(公告)号：US09578566B2

公开(公告)日：2017-02-21

申请号：US14433541

申请日：2013-10-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngkyo Baek ,  Songyean Cho ,  SungHwan Won ,  Hanna Lim ,  Sangsoo Jeong ,  Beomsik Bae ,  Erik Guttman

IPC: H04W36/00 ,  H04W36/08 ,  H04W76/04 ,  H04W12/04

CPC classification number: H04W36/08 ,  H04L9/0891 ,  H04W12/04 ,  H04W36/0027 ,  H04W36/0061 ,  H04W76/20 ,  H04W76/27

Abstract: The present invention relates to a method and an apparatus for transmitting data to user equipment through not only a current base station cell but also a neighboring base station cell via inter-eNB CA in a wireless communication system. A method for transmitting data though carrier aggregation in the wireless communication system, according to the present invention, comprises the steps of: a first base station transreceiving data with a terminal through at least two PDN connections; the first base station transmitting a carrier aggregation request message to a second base station for aggregating carriers, when the first base station determines to carry out inter-eNB carrier aggregation; the first base station receiving a carrier aggregation reply message from the second base station in response to the carrier aggregation request message; the first base station performing an RRC reconfiguration process with the terminal to notify to the terminal of the determination to perform the inter-eNB carrier aggregation; and the first base station transmitting a path change request message to a mobile management entity to correct a data transreceiving path, so that data on at least one PDN connection from among the PDN connections is transreceived through the second base station.

Abstract translation: 本发明涉及一种在无线通信系统中，经由eNB间CA通过不仅当前基站小区而且通过相邻基站小区向用户设备发送数据的方法和装置。 根据本发明的在无线通信系统中通过载波聚合发送数据的方法包括以下步骤：第一基站通过至少两个PDN连接与终端传输数据; 当第一基站确定执行eNB间载波聚合时，第一基站向第二基站发送载波聚合请求消息以聚合载波; 所述第一基站响应于所述载波聚合请求消息从所述第二基站接收载波聚合应答消息; 所述第一基站执行RRC重配置处理，所述终端向所述终端通知所述确定以执行所述eNB间载波聚合; 以及所述第一基站向移动管理实体发送路径改变请求消息，以校正数据转发路径，从而通过所述第二基站转发来自所述PDN连接中的至少一个PDN连接的数据。