公开(公告)号：WO2017007474A1

公开(公告)日：2017-01-12

申请号：PCT/US2015/039611

申请日：2015-07-08

Applicant: HITACHI, LTD. ,  AKOUM, Salam ,  ACHARYA, Joydeep

Inventor： AKOUM, Salam ,  ACHARYA, Joydeep

IPC: H04W28/02

CPC classification number: H04W28/0226 ,  H04W28/0215 ,  H04W28/0247 ,  H04W28/0284 ,  H04W28/08

Abstract: Example implementations of the present disclosure are directed to systems and method for anticipatory video streaming for mobile users for congestion control in cellular networks. The example implementations involve a video streaming system and method as well as a scheduling algorithm to maintain Quality of Experience (QoE) at the video users.

Abstract translation: 本公开的示例性实现涉及用于移动用户对蜂窝网络中的拥塞控制的预期视频流的系统和方法。 该示例实现涉及视频流系统和方法以及维护视频用户体验质量（QoE）的调度算法。

公开(公告)号：WO2016114773A1

公开(公告)日：2016-07-21

申请号：PCT/US2015/011399

申请日：2015-01-14

Applicant: HITACHI, LTD.

Inventor： ACHARYA, Joydeep ,  AKOUM, Salam

IPC: H04W72/00

CPC classification number: H04W24/02 ,  H04W4/70

Abstract: Example implementations of the present disclosure are directed to an Evolved Packet Core (EPC) Control Module by which a cellular operator decides how and when to form new core networks, each dedicated to a specific type(s) of User Equipment (UEs). Example implementations can divide the mobility management entity (MME) of the original EPC into potentially two MMEs, one each for Human to Human (H2H) and Machine Type (MTC) UEs, based on the signal load reduction for MTC UEs. Example implementations can also divide the core network user plane bandwidth into separate user planes, based on the number of UEs in different access class for H2H and MTC UEs.

Abstract translation: 本公开的示例性实现涉及演进的分组核心（EPC）控制模块，蜂窝运营商通过该控制模块决定如何以及何时形成新的核心网络，每个核心网络专用于特定类型的用户设备（UE）。 基于MTC UE的信号负载降低，示例实现可以将原始EPC的移动性管理实体（MME）划分为潜在的两个MME，每个MME分别用于人到人（H2H）和机器类型（MTC）UE。 基于针对H2H和MTC UE的不同接入类别中的UE的数量，示例性实现还可以将核心网络用户平面带宽划分为单独的用户平面。

公开(公告)号：WO2015060880A1

公开(公告)日：2015-04-30

申请号：PCT/US2013/066978

申请日：2013-10-25

Applicant: HITACHI, LTD.

Inventor： ACHARYA, Joydeep ,  AKOUM, Salam ,  GAUR, Sudhanshu

IPC: H04M1/00

CPC classification number: H04B7/0639 ,  H04B7/024 ,  H04B7/0469

Abstract: Example implementations described herein are directed to systems and methods for constructing codebooks for uniform planar array based base stations. The example implementations characterize the spatial correlations of the channel resulting from the uniform planar array arrangement and quantize the correlations for possible values to obtain the codebooks. The codebook utilized in the example implementations may lead to higher throughput than existing codebooks being used in long term evolution systems, for base stations utilizing a uniform planar array.

Abstract translation: 本文描述的示例实现涉及用于构建用于基于均匀的平面阵列的基站的码本的系统和方法。 示例实现表征由均匀平面阵列布置产生的信道的空间相关性，并量化可能值的相关性以获得码本。 在示例实现中使用的码本可以导致比用于长期演进系统的现有码本更高的吞吐量，对于使用均匀平面阵列的基站。

公开(公告)号：WO2017023334A1

公开(公告)日：2017-02-09

申请号：PCT/US2015/044056

申请日：2015-08-06

Applicant: HITACHI, LTD.

Inventor： ACHARYA, Joydeep ,  AKOUM, Salam

IPC: H04W24/02

CPC classification number: H04W24/02 ,  H04W24/04 ,  H04W24/08

Abstract: Example implementations described herein are directed to the network obtaining insight into client side KPIs for video transmission to optimize the improving QoE. In example implementations, there is a framework of test videos placed at various segments of the network and an application running at the client that downloads a subset of these videos and feeds back the KPIs to a central server. Such implementations may improve overall efficiency and QoE of video transmissions over cellular network.

Abstract translation: 这里描述的示例性实现涉及网络，获得洞察用于视频传输的客户端KPI以优化改进的QoE。 在示例实现中，存在放置在网络的各个部分的测试视频的框架以及在客户端上运行的应用程序，该应用程序下载这些视频的一部分并将KPI反馈到中央服务器。 这样的实现可以提高通过蜂窝网络的视频传输的总体效率和QoE。

公开(公告)号：WO2016114768A1

公开(公告)日：2016-07-21

申请号：PCT/US2015/011257

申请日：2015-01-13

Applicant: HITACHI, LTD.

Inventor： ACHARYA, Joydeep ,  AKOUM, Salam

IPC: H04W72/04

CPC classification number: H04W28/08 ,  H04W36/22

Abstract: Example implementations described herein are directed to systems and methods by which Radio Access Network (RAN) level information such as existing base station load and channel conditions can be combined with application information to perform application aware RAN load balancing. This can facilitate the end-to-end quality of service (QoS) of the users.

Abstract translation: 本文描述的示例实现涉及可以将诸如现有基站负载和信道条件的无线电接入网络（RAN）级别信息与应用信息组合以执行应用感知RAN负载平衡的系统和方法。 这可以促进用户端到端的服务质量（QoS）。

公开(公告)号：WO2015152931A1

公开(公告)日：2015-10-08

申请号：PCT/US2014/032887

申请日：2014-04-03

Applicant: HITACHI, LTD.

Inventor： AKOUM, Salam ,  ACHARYA, Joydeep ,  MUKHERJEE, Amitav

IPC: H04W88/08

CPC classification number: H04W16/28

Abstract: Example implementations described herein are directed to forming additional sectors in the vertical domain (called vertical sectorization) for a base station (BS). Example implementations may involve various methods of forming and operating vertical sectors. Example implementations may involve a BS configured with a two dimensional active antenna grid such as in a Full Dimensional Multiple Input Multiple Output (FD-MIMO) system. Example implementations may allow a network operator to create vertical sectors, perform initial configuration and optimize the subsequent data rate performance.

Abstract translation: 本文描述的示例性实现涉及在基站（BS）的垂直域（称为垂直扇区化）中形成附加扇区。 示例性实现可以涉及形成和操作垂直扇区的各种方法。 示例性实现可以包括配置有诸如全尺寸多输入多输出（FD-MIMO）系统中的二维有源天线网格的BS。 示例实现可以允许网络运营商创建垂直扇区，执行初始配置并优化随后的数据速率性能。

公开(公告)号：WO2016114767A1

公开(公告)日：2016-07-21

申请号：PCT/US2015/011254

申请日：2015-01-13

Applicant: HITACHI, LTD.

Inventor： AKOUM, Salam ,  ACHARYA, Joydeep

IPC: H04L1/00

CPC classification number: H04L5/0035 ,  H04L67/2842

Abstract: Example implementations described herein are directed to systems and methods by which cooperative strategies at the Radio Access Network (RAN) are modified to take into account cached content at the enhanced Node Bs in addition to channel quality information. This results in a reduction of the overall network traffic, and improves the Quality of Experience for the user.

Abstract translation: 本文描述的示例性实现涉及系统和方法，通过该系统和方法，修改无线电接入网络（RAN）处的协作策略以除了信道质量信息之外还考虑增强型节点B处的高速缓存的内容。 这导致整体网络流量的减少，并提高用户的体验质量。

公开(公告)号：WO2015167546A1

公开(公告)日：2015-11-05

申请号：PCT/US2014/036207

申请日：2014-04-30

Applicant: HITACHI, LTD.

Inventor： MUKHERJEE, Amitav ,  AKOUM, Salam ,  ACHARYA, Joydeep

IPC: H04L12/26

CPC classification number: H04W80/02 ,  H04L43/0817 ,  H04W28/08 ,  H04W76/12 ,  H04W76/15 ,  H04W92/20

Abstract: Dual connectivity (DC) is a paradigm where a UE is equipped with multiple transmit/receive modules and consumes radio resources from one or more Master eNBs (MeNBs) and Secondary eNBs (SeNBs) simultaneously. In the downlink split bearer DC architecture, the MeNB splits an EPS bearer at the radio level and forwards a portion of the bearer contents to the SeNB which serves it to the UE. Example implementations described herein are directed to how the MeNB performs transmission control and buffer management of the split bearer with minimal coordination from the SeNBs.

Abstract translation: 双连接（DC）是UE配备多个发射/接收模块并同时从一个或多个主eNB（MeNB）和辅助eNB（SeNB）消耗无线电资源的范例。 在下行分组承载DC架构中，MeNB在无线电级别分解EPS承载，并将承载内容的一部分转发给UE所服务的SeNB。 本文描述的示例实现涉及MeNB如何以最小的SeNB的协调来执行分离承载的传输控制和缓冲器管理。

公开(公告)号：WO2015152932A1

公开(公告)日：2015-10-08

申请号：PCT/US2014/032890

申请日：2014-04-03

Applicant: HITACHI, LTD

Inventor： GAO, Long ,  GAUR, Sudhanshu ,  AKOUM, Salam

IPC: H04W36/00

CPC classification number: H04W36/20 ,  H04W84/045

Abstract: Example implementations described herein are directed to the consideration of inter cell interference coordination in femto networks. The femto cells deployed in the same frequency band can interfere with each other especially in dense deployment scenarios. In particular, a CSG femto cell may cause strong interference to its neighboring non-CSG UEs (which are not allowed to connected to the CSG cell) in the downlink. Example implementations described herein can reduce the interference level experienced by those UEs and may thereby improve their throughput performance.

Abstract translation: 本文描述的示例性实现涉及毫微微网络中的小区间干扰协调的考虑。 部署在相同频带的毫微微小区可能彼此干扰，特别是在密集部署情况下。 特别地，CSG毫微微小区可能在下行链路中对其相邻的非CSG UE（其不被允许连接到CSG小区）造成强烈干扰。 本文描述的示例实现可以减少这些UE所经历的干扰水平，从而可以提高其吞吐量性能。

公开(公告)号：WO2017026991A1

公开(公告)日：2017-02-16

申请号：PCT/US2015/044262

申请日：2015-08-07

Applicant: HITACHI, LTD.

Inventor： AKOUM, Salam ,  ACHARYA, Joydeep

IPC: G06F15/16

CPC classification number: H04N21/2225 ,  H04L65/4084 ,  H04L65/80 ,  H04N21/23103 ,  H04N21/23106 ,  H04N21/2402 ,  H04N21/2405 ,  H04N21/6131

Abstract: Example implementations are directed to systems and methods for radio access network (RAN) load balancing that takes into account the end-to-end application requirements. Example implementations involve systems and methods by which RAN level information such as existing base station load and channel conditions can be combined with application information to perform application aware RAN load balancing. By implementation of the examples provided in the present disclosure, end-to-end quality of service (QoS) of the all users in the cellular network may be improved. Example implementations may be implemented by a method for dynamic caching and predictive maintenance of the network using intelligent video Quality of Experience (QoE) metrics feedback from the edge of the network.

Abstract translation: 示例实现涉及考虑到端到端应用需求的无线电接入网（RAN）负载平衡的系统和方法。 示例实现涉及诸如现有基站负载和信道条件的RAN级信息可以与应用信息组合以执行应用感知RAN负载平衡的系统和方法。 通过实施本公开中提供的示例，可以提高蜂窝网络中所有用户的端到端服务质量（QoS）。 可以通过用于使用来自网络边缘的智能视频体验质量（QoE）度量反馈的网络的动态缓存和预测性维护的方法来实现示例实现。