公开(公告)号：US09769265B2

公开(公告)日：2017-09-19

申请号：US14734299

申请日：2015-06-09

Applicant: Hitachi, Ltd.

Inventor： Masashi Yano ,  Tsutomu Hirao ,  Michitaka Okuno ,  Nodoka Mimura ,  Daisuke Ishii ,  Yuta Muto

IPC: G06F11/00 ,  H04L29/08

CPC classification number: H04L67/148 ,  H04L29/08639

Abstract: A communication system comprising computers and a management computer, wherein the computers include a communication control unit configured to control a communication using a session of a terminal. The communication control unit manages a database storing in a plurality of pieces of session information. The management computer includes property management information for managing a property of each of the plurality of pieces of session information. The session information migration control unit is configured to: detect a migration trigger of the plurality of pieces of session information stored in a first database; select the plurality of pieces of session information from the plurality of pieces of session information stored in the first database based on the property management information; determine a migration order for the selected plurality of pieces of session information based on the property of the each of the selected plurality of pieces of session information.

公开(公告)号：US09420590B2

公开(公告)日：2016-08-16

申请号：US14447927

申请日：2014-07-31

Applicant: HITACHI, LTD.

Inventor： Masashi Yano ,  Nodoka Mimura ,  Naruhito Nakahara

IPC: H04B15/00 ,  H04W72/04 ,  H04W88/16 ,  H04W28/16

CPC classification number: H04W72/0486 ,  H04W28/16 ,  H04W88/16

Abstract: Appropriate bandwidths are allocated to base stations in response to variations in the arrangement of mobile terminals and according to the type of mobile terminals. Mobile gateways disposed between a plurality of base stations connecting a plurality of mobile terminals and a service network include a base station information acquiring unit that acquires communication capacities of the base stations; a mobile terminal information acquiring unit that acquires a communication capacity of each type of the mobile terminals; a communication bandwidth estimating unit that estimates the communication bandwidths of the base stations on the basis of the acquired communication capacities of the base stations and the acquired communication capacities of mobile terminals; and a communication bandwidth control unit that controls communication bandwidths corresponding to the base stations on the basis of the estimated communication bandwidth.

Abstract translation: 响应于移动终端的布置的变化以及根据移动终端的类型，将合适的带宽分配给基站。 设置在连接多个移动终端的多个基站与服务网络之间的移动网关包括获取基站的通信能力的基站信息获取单元， 移动终端信息获取单元，其获取每种类型的移动终端的通信容量; 通信带宽估计单元，其基于获取的基站的通信容量和所获取的移动终端的通信容量来估计基站的通信带宽; 以及通信带宽控制单元，其基于所估计的通信带宽来控制与所述基站相对应的通信带宽。