公开(公告)号：US10051528B2

公开(公告)日：2018-08-14

申请号：US15507937

申请日：2015-09-09

申请人： NEC Corporation

发明人： Atsushi Nakata ,  Yoshinori Watanabe

IPC分类号： H04W36/00 ,  H04W16/32 ,  H04W36/08 ,  H04W36/04

CPC分类号： H04W36/0033 ,  H04W16/32 ,  H04W24/02 ,  H04W36/0011 ,  H04W36/04 ,  H04W36/08 ,  H04W84/045

摘要： A communication apparatus according to the present invention is applied to a communication apparatus in a wireless communication system including a terminal, a first base station forming a first cell, and a second base station forming a second cell adjacent to the first cell. The communication apparatus includes: a communication status acquisition unit that acquires a communication status in the second base station; and a control unit that eliminates cell identifier duplication between a cell identifier of the second cell and a cell identifier of another cell based on the number of times that the second base station has received, from the terminal, a first message requesting for re-establishment of an RRC connection.

公开(公告)号：US10045268B2

公开(公告)日：2018-08-07

申请号：US15031480

申请日：2014-10-21

申请人： NEC Corporation

发明人： Tomohiro Watanabe ,  Yasuhiko Matsunaga ,  Atsushi Nakata

IPC分类号： H04W36/22 ,  H04W28/02 ,  H04L12/803

摘要： [Problem] To provide a wireless base station, a traffic load-balancing method, and a traffic load-balancing program that make it possible to more reliably avoid backhaul congestion and decreases in wireless-terminal throughput. [Solution] This wireless base station includes the following: a setting unit (14) that sets network load information that indicates the traffic load on a backhaul between the wireless base station and a core network; and an execution unit (15) that, on the basis of the network load information set by the setting unit and network load information received from a neighboring wireless base station, executes a process that balances the traffic load between the wireless base stations.

公开(公告)号：US09344899B2

公开(公告)日：2016-05-17

申请号：US14656421

申请日：2015-03-12

申请人： NEC CORPORATION

发明人： Atsushi Nakata

IPC分类号： H04W16/24 ,  H04W16/32 ,  H04W24/10 ,  H04W52/40 ,  H04W52/24 ,  H04W52/16 ,  H04W52/32

CPC分类号： H04W16/24 ,  H04W16/32 ,  H04W24/10 ,  H04W52/16 ,  H04W52/241 ,  H04W52/242 ,  H04W52/245 ,  H04W52/325 ,  H04W52/40

摘要： When one base station forms a plurality of cells that use different frequency bands, a handover caused by movement between cells can be successfully performed with a high probability. A radio base station adapted to communicate with a radio communication terminal, comprising: a communication unit which performs a first communication with the radio communication terminal by using a first frequency, wherein the communication unit performs a second communication with the communication terminal by using a second frequency that is different from the first frequency; and a controller which performs a control, of at least one of a first power of the first communication and a second power of the second communication, based on a first power-related quality of the first communication and a second power-related quality of the second communication.

公开(公告)号：US09125069B2

公开(公告)日：2015-09-01

申请号：US13749045

申请日：2013-01-24

申请人： NEC Corporation

发明人： Atsushi Nakata

IPC分类号： H04W40/00 ,  H04W16/24 ,  H04W16/32 ,  H04W24/10

CPC分类号： H04W16/24 ,  H04W16/32 ,  H04W24/10 ,  H04W52/16 ,  H04W52/241 ,  H04W52/242 ,  H04W52/245 ,  H04W52/325 ,  H04W52/40

摘要： When one base station forms a plurality of cells that use different frequency bands, a handover caused by movement between cells can be successfully performed with a high probability. A radio base station adapted to communicate with a radio communication terminal, comprising: a communication unit which performs a first communication with the radio communication terminal by using a first frequency, wherein the communication unit performs a second communication with the communication terminal by using a second frequency that is different from the first frequency; and a controller which performs a control, of at least one of a first power of the first communication and a second power of the second communication, based on a first power-related quality of the first communication and a second power-related quality of the second communication.

摘要翻译： 当一个基站形成使用不同频带的多个小区时，可以以高概率成功地执行由小区之间的移动引起的切换。 一种适于与无线电通信终端通信的无线电基站，包括：通信单元，其通过使用第一频率与所述无线电通信终端进行第一通信，其中所述通信单元通过使用第二频率与所述通信终端进行第二通信 频率与第一频率不同; 以及控制器，其基于所述第一通信的第一功率相关质量和所述第一通信的第二功率相关质量来执行所述第一通信的第一功率和所述第二通信的第二功率中的至少一个的控制， 第二次沟通。

公开(公告)号：US20150038145A1

公开(公告)日：2015-02-05

申请号：US14384021

申请日：2013-02-14

申请人： NEC CORPORATION

发明人： Atsushi Nakata ,  Yoshio Ueda

IPC分类号： H04W36/00

CPC分类号： H04W36/0055 ,  H04W84/045 ,  H04W88/12

摘要： A disclosed base station gateway apparatus has a C-plane processing unit and a U-plane processing unit. When a mobile station performs handover from a subordinate source base station to a subordinate target base station, the C-plane processing unit terminates S1AP signaling received from the source base station and the target base station without relaying the S1AP signaling to a mobility management apparatus. The U-plane processing unit inserts, into U-plane data that is received from a serving gateway apparatus and that is to be transferred to the source base station, an end marker indicating that the U-plane data is the last data at a predetermined timing, and switches the transfer destination of the U-plane data, received from the serving gateway apparatus, from the source base station to the target base station at a timing immediately after the end marker is inserted.

摘要翻译： 所公开的基站网关装置具有C平面处理单元和U平面处理单元。 当移动台从下属的基站到下位的基站进行切换时，C平面处理部终止从源基站和目标基站接收到的S1AP信令，而不将S1AP信令中继到移动管理装置。 U平面处理单元插入到从服务网关装置接收到的要传送到源基站的U平面数据中，表示U平面数据是预定的最后数据的结束标记 定时，并且在紧接在结束标记被插入之后的定时将从服务网关装置接收的U平面数据的传送目的地从源基站切换到目标基站。