公开(公告)号：US20190191128A1

公开(公告)日：2019-06-20

申请号：US16327577

申请日：2017-08-07

Applicant: NEC CORPORATION

Inventor： Norio YAMAGAKI ,  Hiroaki AMINAKA ,  Dai KANETOMO ,  Yasuhiko MATSUNAGA ,  Gen MOTOYOSHI

IPC: H04N7/18 ,  H04N19/124 ,  H04N19/167 ,  H04N19/176 ,  H04N21/2662 ,  H04N21/431 ,  H04N21/6547

Abstract: A image processing apparatus according to an aspect of the present invention includes: determination unit 131 that determines a first region based on an occurrence position where a phenomenon is estimated to occur in an image; and setting unit 132 that sets a first condition in which the first region is encoded, and a second condition in which a second region included in the image and being a region other than the first region is encoded in such a way that the first region enhances image quality as compared with the second region.

公开(公告)号：US20180337845A1

公开(公告)日：2018-11-22

申请号：US16012978

申请日：2018-06-20

Applicant: NEC CORPORATION

Inventor： Yasuhiko MATSUNAGA

IPC: H04L12/701 ,  H04W40/02 ,  H04L29/06 ,  H04L12/721 ,  H04L12/715 ,  H04W12/06

Abstract: A method is disclosed for optimizing packet transmission paths in a mobile communication network (400) in which packets are transmitted and received between mobile stations (10-14) or between a mobile station and a fixed network (120) by way of a plurality of packet transmission device (60-64, 70-72, 80, and 81) and radio base stations (50-57). When a mobile station uses a service that is provided by a fixed network (300), imposed are applied on the packet transmission path such that packets pass by way of specific packet transmission devices (80 and 81) depending on the fixed network (external network) 300. When the mobile station uses a service that is provided by the mobile communication network (400), on the other hand, no restrictions are imposed on the packet transmission path, and the packet transmission path is thus set such that the link costs are a minimum.

公开(公告)号：US20180262416A1

公开(公告)日：2018-09-13

申请号：US15978951

申请日：2018-05-14

Applicant: NEC CORPORATION

Inventor： Yasuhiko MATSUNAGA

IPC: H04L12/701 ,  H04W40/02 ,  H04L29/06 ,  H04L12/721 ,  H04L12/715 ,  H04W12/06

Abstract: A method is disclosed for optimizing packet transmission paths in a mobile communication network (400) in which packets are transmitted and received between mobile stations (10-14) or between a mobile station and a fixed network (120) by way of a plurality of packet transmission device (60-64, 70-72, 80, and 81) and radio base stations (50-57). When a mobile station uses a service that is provided by a fixed network (300), imposed are applied on the packet transmission path such that packets pass by way of specific packet transmission devices (80 and 81) depending on the fixed network (external network) 300. When the mobile station uses a service that is provided by the mobile communication network (400), on the other hand, no restrictions are imposed on the packet transmission path, and the packet transmission path is thus set such that the link costs are a minimum.

公开(公告)号：US20200287818A1

公开(公告)日：2020-09-10

申请号：US16883782

申请日：2020-05-26

Applicant: NEC CORPORATION

Inventor： Yasuhiko MATSUNAGA

IPC: H04L12/701 ,  H04L12/721 ,  H04L29/06 ,  H04W40/02 ,  H04W12/00

Abstract: A method is disclosed for optimizing packet transmission paths in a mobile communication network (400) in which packets are transmitted and received between mobile stations (10-14) or between a mobile station and a fixed network (120) by way of a plurality of packet transmission device (60-64, 70-72, 80, and 81) and radio base stations (50-57). When a mobile station uses a service that is provided by a fixed network (300), imposed are applied on the packet transmission path such that packets pass by way of specific packet transmission devices (80 and 81) depending on the fixed network (external network) 300. When the mobile station uses a service that is provided by the mobile communication network (400), on the other hand, no restrictions are imposed on the packet transmission path, and the packet transmission path is thus set such that the link costs are a minimum.

公开(公告)号：US20160073301A1

公开(公告)日：2016-03-10

申请号：US14780919

申请日：2014-03-25

Applicant: NEC CORPORATION

Inventor： Yoshifumi YANAGISAKO ,  Yasuhiko MATSUNAGA

IPC: H04W36/00

CPC classification number: H04W36/0055

Abstract: Communication apparatus in a wireless communication system and handover control method in the same are provided that enable handover information to be notified to the source side of a handover regardless of the types of UEs. When a communication apparatus (20) managed by an upper-level network (30) has established a connection with a terminal (40) during handover operation of the terminal (40), the communication apparatus (20) sets information about the handover of the terminal in a handover complete message and sends it to the upper-level network (30), and a source-side communication apparatus (10) acquires the handover information from a handover success notice from the upper-level network.

Abstract translation: 提供了一种无线通信系统中的通信装置及其切换控制方法，其中，无论UE的种类如何，都能够将切换信息通知给切换源。 当由上级网络（30）管理的通信装置（20）在终端（40）的切换操作期间已经与终端（40）建立连接时，通信装置（20）设置关于终端 终端在切换完成消息中并将其发送到上级网络（30），并且源侧通信装置（10）从来自上级网络的切换成功通知获取切换信息。

公开(公告)号：US20150373772A1

公开(公告)日：2015-12-24

申请号：US14762663

申请日：2013-11-14

Applicant: NEC CORPORATION

Inventor： Yoshinori WATANABE ,  Hiroto SUGAHARA ,  Yasuhiko MATSUNAGA ,  Yoshifumi YANAGISAKO

IPC: H04W76/02 ,  H04W36/00

CPC classification number: H04W76/19 ,  H04W36/0055

Abstract: A handover failure detection device (121) detects at least one of handover failure types regarding outgoing handover from a first cell (131) managed by a first base station (111) by observing: (a) presence/absence of reception by the first base station (111) of an acknowledgment response to a handover command regarding first handover of a mobile terminal (101) from the first cell (131) to a second cell (132) managed by a second base station (112); and (b) presence/absence of a request for connection re-establishment from the mobile terminal (101) to the first cell (131), the request occurring after initiation of the first handover. As a result, it contributes to improvement of handover failure detection or reduction of handover failure in a situation where exchange of information between base stations is restricted.

Abstract translation: 切换失败检测装置（121）通过观察以下步骤，检测关于从第一基站（111）管理的第一小区（131）的出站切换的切换失败类型中的至少一种：（a）第一基站的接收的存在/不存在 关于移动终端（101）从第一小区（131）到由第二基站（112）管理的第二小区（132）的第一切换的切换命令的确认响应的站（111）。 以及（b）是否存在从移动终端（101）到第一小区（131）的连接重新建立的请求，该请求是在第一切换开始之后发生的。 结果，在基站之间的信息交换被限制的情况下，有助于改善切换失败检测或减少切换失败。

公开(公告)号：US20200314000A1

公开(公告)日：2020-10-01

申请号：US16899947

申请日：2020-06-12

Applicant: NEC CORPORATION

Inventor： Yasuhiko MATSUNAGA

IPC: H04L12/701 ,  H04L12/721 ,  H04L29/06 ,  H04W40/02 ,  H04W12/00

Abstract: A method is disclosed for optimizing packet transmission paths in a mobile communication network (400) in which packets are transmitted and received between mobile stations (10-14) or between a mobile station and a fixed network (120) by way of a plurality of packet transmission device (60-64, 70-72, 80, and 81) and radio base stations (50-57). When a mobile station uses a service that is provided by a fixed network (300), imposed are applied on the packet transmission path such that packets pass by way of specific packet transmission devices (80 and 81) depending on the fixed network (external network) 300. When the mobile station uses a service that is provided by the mobile communication network (400), on the other hand, no restrictions are imposed on the packet transmission path, and the packet transmission path is thus set such that the link costs are a minimum.

公开(公告)号：US20160262072A1

公开(公告)日：2016-09-08

申请号：US15031480

申请日：2014-10-21

Applicant: NEC Corporation

Inventor： Tomohiro WATANABE ,  Yasuhiko MATSUNAGA ,  Atsushi NAKATA

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

CPC classification number: H04W36/22 ,  H04L47/125 ,  H04W28/02 ,  H04W28/0236

Abstract: [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.

Abstract translation: [问题]提供一种无线基站，流量负载平衡方法和业务负载均衡程序，使得可以更可靠地避免回程拥塞和无线终端吞吐量的降低。 [解决方案]该无线基站包括：设置单元（14），其设置指示无线基站和核心网之间的回程上的业务负载的网络负载信息; 以及执行单元，其基于由所述设置单元设置的网络负载信息和从相邻无线基站接收的网络负载信息，执行平衡所述无线基站之间的业务负载的处理。

公开(公告)号：US20160249353A1

公开(公告)日：2016-08-25

申请号：US15027214

申请日：2014-08-27

Applicant: NEC CORPORATION

Inventor： Atsushi NAKATA ,  Yasuhiko MATSUNAGA

IPC: H04W72/04 ,  H04L12/723 ,  H04L12/46

CPC classification number: H04W72/0446 ,  H04L12/4641 ,  H04L45/50 ,  H04W28/16 ,  H04W72/0406

Abstract: In order to allow a plurality of MNOs to share at least two of a radio access network (RAN) (100), a mobile backhaul network (MBH) (200), and a core network (CN) (300), a network control system (500) operates to enforce a network resource configuration to each of the at least two networks to be shared out of the RAN (100), the MBH (200), and the CN (300) in accordance with common resource partitioning information indicating slicing of network resources among the plurality of MNOs. It is thus possible to contribute to improving the efficiency of performing setting of network resource allocation on the at least two networks to be shared.

Abstract translation: 为了允许多个MNO共享无线电接入网络（RAN）（100），移动回程网络（MBH）（200）和核心网络（CN）（300））中的至少两个，网络控制 系统（500）操作以根据公共资源分配信息来执行网络资源配置，以对于要从RAN（100），MBH（200）和CN（300）共享的至少两个网络中的每一个来执行网络资源配置， 多个MNO之间的网络资源切片。 因此，可以有助于提高在要共享的至少两个网络上执行网络资源分配的设置的效率。

公开(公告)号：US20160198481A1

公开(公告)日：2016-07-07

申请号：US14904444

申请日：2014-07-14

Applicant: NEC CORPORATION

Inventor： Tooru KIKUCHI ,  Yasuhiko MATSUNAGA

IPC: H04W72/08

CPC classification number: H04W72/085 ,  H04W16/06 ,  H04W16/32

Abstract: A radio control system capable of avoiding decrease in a throughput of a macro base station and a micro base station or suppress interference in the micro base station is provided. The radio control system includes a macro base station 101 forming a macro cell 103 and a micro base station 102 forming a picocell 105 included in the macro cell 103. Further, the radio control system includes a communication quality detection unit 111 detecting a communication quality between the micro base station 102 and a communication terminal present in the picocell 105, and a management apparatus 110 controlling a ratio of a radio resource where data transmission is limited in the first base station, based on the communication quality.

Abstract translation: 提供一种能够避免宏基站和微基站的吞吐量下降或抑制微基站干扰的无线控制系统。 无线电控制系统包括形成宏小区103的宏基站101和形成包括在宏小区103中的微微小区105的微基站102.另外，无线控制系统包括：通信质量检测单元111， 微基站102和存在于微微小区105中的通信终端，以及管理装置110，其基于通信质量来控制第一基站中数据传输受限的无线资源的比率。