公开(公告)号：US07236759B2

公开(公告)日：2007-06-26

申请号：US11080038

申请日：2005-03-15

Applicant: Inhyok Cha ,  Zheng Zhao ,  Thomas Eric Gorsuch ,  Ross L. Lintelman

Inventor： Inhyok Cha ,  Zheng Zhao ,  Thomas Eric Gorsuch ,  Ross L. Lintelman

IPC: H04B1/06

CPC classification number: H04B7/0408 ,  H04B7/0617 ,  H04B7/086 ,  Y02D70/14

Abstract: An antenna steering algorithm for a smart antenna uses signal quality metrics and link quality metrics for selecting a preferred antenna beam. The link quality metrics supplement the signal quality metrics for improving the antenna steering decision. The link quality metrics are based on information available from existing counters operating in the media access control (MAC) layer. Separate estimates of the frame error rates in the receive links and in the transmit links are obtained. One estimate is the downlink quality metric (DLQM) and another estimate is the uplink quality metric (ULQM). Alternative link quality metrics are based on throughput and data rates of the exchanged data.

Abstract translation: 用于智能天线的天线导向算法使用信号质量度量和链路质量度量来选择优选的天线波束。 链路质量度量补充信号质量度量以改善天线导向决策。 链路质量度量基于在媒体访问控制（MAC）层中操作的现有计数器可用的信息。 获得接收链路和发送链路中帧错误率的单独估计。 一个估计是下行链路质量度量（DLQM），另一个估计是上行链路质量度量（ULQM）。 备用链路质量度量是基于交换数据的吞吐量和数据速率。

公开(公告)号：US20070036353A1

公开(公告)日：2007-02-15

申请号：US11444558

申请日：2006-05-31

Applicant: Alexander Reznik ,  Debashish Purkayastha ,  Steven Goldberg ,  Robert Olesen ,  Marian Rudolf ,  Inhyok Cha ,  Alan Carlton ,  Yogendra Shah ,  Shamim Rahman ,  Rajat Mukherjee ,  Robert DiFazio ,  Gregory Sternberg ,  Leonid Kazakevich ,  Kazimierz Siwiak ,  Guodong Zhang ,  Tanbir Haque ,  Louis Guccione ,  Prabhakar Chitrapu ,  Akinlolu Kumoluyi ,  Alain Briancon

Inventor： Alexander Reznik ,  Debashish Purkayastha ,  Steven Goldberg ,  Robert Olesen ,  Marian Rudolf ,  Inhyok Cha ,  Alan Carlton ,  Yogendra Shah ,  Shamim Rahman ,  Rajat Mukherjee ,  Robert DiFazio ,  Gregory Sternberg ,  Leonid Kazakevich ,  Kazimierz Siwiak ,  Guodong Zhang ,  Tanbir Haque ,  Louis Guccione ,  Prabhakar Chitrapu ,  Akinlolu Kumoluyi ,  Alain Briancon

IPC: H04L9/30

CPC classification number: H04B7/0434 ,  H04B7/0695 ,  H04L9/0631 ,  H04L9/0656 ,  H04L9/0875 ,  H04L9/3271 ,  H04L63/0428 ,  H04L63/061 ,  H04L63/08 ,  H04L63/1441 ,  H04L63/1466 ,  H04L63/18 ,  H04L2209/34 ,  H04L2209/80 ,  H04W12/00503 ,  H04W12/00508 ,  H04W12/02 ,  H04W12/04 ,  H04W12/06 ,  H04W92/10

Abstract: The present invention relates to secret key generation and authentication methods that are based on joint randomness not shared by others (JRNSO), in which unique channel response between two communication terminals generates a secret key. Multiple network access points use a unique physical location of a receiving station to increase user data security. High data rate communication data is encrypted by generating a random key and a pseudo-random bit stream. A configurable interleaving is achieved by introduction of JRNSO bits to an encoder used for error-correction codes. Databases of user data are also protected by JRNSO-based key mechanisms. Additional random qualities are induced on the joint channel using MIMO eigen-beamforming, antenna array deflection, polarization selection, pattern deformation, and path selection by beamforming or time correlation. Gesturing induces randomness according to uniquely random patterns of a human user's arm movements inflected to the user device.

Abstract translation: 本发明涉及基于其他人不共享的联合随机性（JRNSO）的秘密密钥生成和认证方法，其中两个通信终端之间的唯一信道响应产生密钥。 多个网络接入点使用接收站的唯一物理位置来增加用户数据的安全性。 通过生成随机密钥和伪随机比特流来加密高数据速率通信数据。 通过将JRNSO位引入用于纠错码的编码器来实现可配置的交错。 用户数据的数据库也受到基于JRNSO的关键机制的保护。 使用MIMO本征波束形成，天线阵列偏转，偏振选择，图案变形以及通过波束形成或时间相关的路径选择在联合信道上引起附加随机质量。 手势根据用户装置的人体手臂运动的唯一随机模式引起随机性。

公开(公告)号：US20060203789A1

公开(公告)日：2006-09-14

申请号：US11302299

申请日：2005-12-13

Applicant: Ana Iacono ,  Arty Chandra ,  Inhyok Cha ,  John Chen ,  Yingxue Li ,  James Otto

Inventor： Ana Iacono ,  Arty Chandra ,  Inhyok Cha ,  John Chen ,  Yingxue Li ,  James Otto

IPC: H04Q7/24 ,  H04L12/66

CPC classification number: H04B7/0608 ,  H04W16/28 ,  H04W72/046

Abstract: An apparatus and a method for improving packet transmission and reducing latency in VoIP over WLAN using switched beam antennas having multiple directional antenna beams are disclosed. In an access point having a switched beam antenna, or other smart antenna system, the present invention extends the coverage area of an access point for authentication and association of a new WTRU, extends the access points coverage area during in session transmissions with a WTRU, and adjusts data rates. The method also controls Contention Period (CP)/Contention Free Period (CFP) timing amongst beams emanating from an access point having a switched beam antenna, or other smart antenna system. Fast diversity switching, frame level switching, lowered data rates, and scanning multiple directional antenna beams for the optimum transmission beam are disclosed to improve beam selection and packet transmission.

Abstract translation: 公开了一种使用具有多个定向天线波束的切换波束天线来改善分组传输并减少VoIP中的VoIP延迟的装置和方法。 在具有切换波束天线或其它智能天线系统的接入点中，本发明扩展用于新WTRU的认证和关联的接入点的覆盖区域，在与WTRU的会话传输期间扩展接入点覆盖区域， 并调整数据速率。 该方法还控制从具有切换波束天线或其他智能天线系统的接入点发出的波束之间的竞争周期（CP）/无竞争周期（CFP）定时。 公开了快速分集切换，帧级切换，降低数据速率和扫描用于最佳传输波束的多方向天线波束，以改善波束选择和分组传输。

公开(公告)号：US20060063492A1

公开(公告)日：2006-03-23

申请号：US11022709

申请日：2004-12-27

Applicant: Ana Iacono ,  Arty Chandra ,  Inhyok Cha ,  Paul Marinier ,  Vincent Roy

Inventor： Ana Iacono ,  Arty Chandra ,  Inhyok Cha ,  Paul Marinier ,  Vincent Roy

IPC: H04B17/00

CPC classification number: H04B7/0632 ,  H04B7/0408 ,  H04B7/0619 ,  H04B7/0695 ,  H04B7/088 ,  H04B17/10 ,  H04B17/24 ,  H04B17/318 ,  H04B17/336 ,  H04L5/14 ,  H04W24/08 ,  H04W84/12

Abstract: A method for taking measurements with a smart antenna in a wireless communication system having a plurality of STAs begins by sending a measurement request from a first STA to a second STA. At least two measurement packets are transmitted consecutively from the second STA to the first STA. Each measurement packet is received at the first STA using a different antenna beam. The first STA performs measurements on each measurement packet and selects an antenna beam direction based on the measurement results.

公开(公告)号：US09820335B2

公开(公告)日：2017-11-14

申请号：US13435479

申请日：2012-03-30

Applicant: Ana Lucia A. Pinheiro ,  Samian J. Kaur ,  Inhyok Cha ,  Dolores F. Howry ,  Michael F. Starsinic ,  Debjani Majumder ,  Dale N. Seed ,  Chonggang Wang ,  Lijun Dong ,  Guang Lu ,  Zongrui Ding

Inventor： Ana Lucia A. Pinheiro ,  Samian J. Kaur ,  Inhyok Cha ,  Dolores F. Howry ,  Michael F. Starsinic ,  Debjani Majumder ,  Dale N. Seed ,  Chonggang Wang ,  Lijun Dong ,  Guang Lu ,  Zongrui Ding

IPC: H04W88/08 ,  H04W4/00 ,  H04W76/02 ,  H04W12/06 ,  H04W80/04 ,  H04W84/04 ,  H04W88/02 ,  H04W88/14 ,  H04W88/16

CPC classification number: H04W88/08 ,  H04W4/08 ,  H04W4/70 ,  H04W12/06 ,  H04W76/10 ,  H04W80/04 ,  H04W84/042 ,  H04W88/02 ,  H04W88/14 ,  H04W88/16

Abstract: Disclosed herein are methods and devices for sharing a packet data protocol (PDP) context among a plurality of devices. For example, a method or sharing a PDP context among a plurality of devices may include a wireless transmit/receive unit (WTRU) sending a request to establish or modify a PDP context. The request to establish or modify the PDP context may include an indication that the WTRU is a member of shared context group. The method may also include the WTRU receiving a response indicating that the request to establish or modify the PDP context was accepted. The method may also include the WTRU acting as a gateway for at least one other device in the shared context group. The request to establish or modify the PDP context may be an attach request. The indication that the WTRU is a member of shared context group may be a group identifier (ID).

公开(公告)号：US09497626B2

公开(公告)日：2016-11-15

申请号：US13296855

申请日：2011-11-15

Applicant: Lawrence Case ,  Yogendra C. Shah ,  Inhyok Cha

Inventor： Lawrence Case ,  Yogendra C. Shah ,  Inhyok Cha

IPC: H04L29/06 ,  H04W12/06 ,  H04L9/32

CPC classification number: H04L63/0823 ,  H04L9/3263 ,  H04L63/061 ,  H04L63/0853 ,  H04L63/0869 ,  H04L63/0884 ,  H04W4/70 ,  H04W8/183 ,  H04W12/06

Abstract: A constrained network entity may determine, via an authentication procedure with a core network entity, the trustworthiness of an endpoint attempting to establish a secure channel with the constrained network entity. The constrained network entity may receive a certificate from the endpoint attempting to establish the secure channel and the constrained network entity may send the certificate asserted by the endpoint to a core network entity for validation. The core network entity may receive the certificate during a key exchange with the constrained network entity and the core network entity may indicate to the constrained network entity the validity of the certificate. The constrained network entity may determine whether to establish the secure channel with the endpoint based on the validity of the certificate.

Abstract translation: 受限网络实体可以通过与核心网络实体的认证过程来确定试图与受限网络实体建立安全信道的端点的可信赖性。 受约束的网络实体可以从尝试建立安全信道的端点接收证书，并且受约束的网络实体可以将由端点确定的证书发送到核心网络实体进行验证。 核心网络实体可以在与受限网络实体的密钥交换期间接收证书，并且核心网络实体可以向受约束的网络实体指示证书的有效性。 受限网络实体可以基于证书的有效性来确定是否与端点建立安全信道。

公开(公告)号：US09253643B2

公开(公告)日：2016-02-02

申请号：US12718572

申请日：2010-03-05

Applicant: Sudhir B. Pattar ,  Inhyok Cha ,  Andreas U. Schmidt ,  Andreas Leicher ,  Yogendra C. Shah ,  Dolores F. Howry ,  David G. Greiner ,  Lawrence L. Case ,  Michael V. Meyerstein ,  Louis J. Guccione

Inventor： Sudhir B. Pattar ,  Inhyok Cha ,  Andreas U. Schmidt ,  Andreas Leicher ,  Yogendra C. Shah ,  Dolores F. Howry ,  David G. Greiner ,  Lawrence L. Case ,  Michael V. Meyerstein ,  Louis J. Guccione

IPC: G06F11/20 ,  H04W12/10

CPC classification number: H04L41/0869 ,  H04L41/0654 ,  H04L41/0681 ,  H04L63/123 ,  H04L63/166 ,  H04W12/10 ,  H04W84/045

Abstract: An apparatus and method for providing home evolved node-B (H(e)NB) integrity verification and validation using autonomous validation and semi-autonomous validation is disclosed herein.

Abstract translation: 本文公开了一种使用自主验证和半自主验证来提供家庭演进节点B（H（e）NB）完整性验证和验证的装置和方法。

公开(公告)号：US08949997B2

公开(公告)日：2015-02-03

申请号：US13582867

申请日：2011-03-04

Applicant: Andreas Schmidt ,  Andreas Leicher ,  Inhyok Cha ,  Sudhir B. Pattar ,  Yogendra C. Shah

Inventor： Andreas Schmidt ,  Andreas Leicher ,  Inhyok Cha ,  Sudhir B. Pattar ,  Yogendra C. Shah

IPC: H04L29/06 ,  H04W12/10 ,  H04L9/32 ,  G06F21/57

CPC classification number: G06F21/57 ,  G06F17/30327 ,  G06F21/53 ,  G06F21/64 ,  G06F2221/034 ,  H04L9/3234 ,  H04L9/3265 ,  H04L63/02 ,  H04L63/123 ,  H04L63/126 ,  H04L2209/30 ,  H04L2209/805 ,  H04W4/70 ,  H04W12/08 ,  H04W12/10

Abstract: Systems, methods, and apparatus are provided for generating verification data that may be used for validation of a wireless transmit-receive unit (WTRU). The verification data may be generated using a tree structure having protected registers, represented as root nodes, and component measurements, represented as leaf nodes. The verification data may be used to validate the WTRU. The validation may be performed using split-validation, which is a form of validation described that distributes validation tasks between two or more network entities. Subtree certification is also described, wherein a subtree of the tree structure may be certified by a third party.

Abstract translation: 提供了系统，方法和装置，用于产生可用于验证无线发射 - 接收单元（WTRU）的验证数据。 验证数据可以使用具有表示为叶节点的根节点和组件测量的受保护寄存器的树结构来生成。 验证数据可以用于验证WTRU。 可以使用拆分验证来执行验证，分裂验证是描述的验证形式，其在两个或多个网络实体之间分发验证任务。 还描述了子树认证，其中树结构的子树可以由第三方认证。

公开(公告)号：US08914636B2

公开(公告)日：2014-12-16

申请号：US13535563

申请日：2012-06-28

Applicant: Inhyok Cha ,  Andreas Leicher ,  Andreas Schmidt ,  Louis J. Guccione ,  Yogendra C. Shah ,  Yousif Targali

Inventor： Inhyok Cha ,  Andreas Leicher ,  Andreas Schmidt ,  Louis J. Guccione ,  Yogendra C. Shah ,  Yousif Targali

IPC: H04L29/06 ,  H04W12/06 ,  H04L9/32 ,  H04L12/28

CPC classification number: H04L63/08 ,  H04L9/0816 ,  H04L9/32 ,  H04L12/2856 ,  H04L63/0815 ,  H04L63/102 ,  H04L63/205 ,  H04W12/06

Abstract: Wireless telecommunications networks may implement various forms of authentication. There are a variety of different user and device authentication protocols that follow a similar network architecture, involving various network entities such as a user equipment (UE), a service provider (SP), and an authentication endpoint (AEP). To select an acceptable authentication protocol or credential for authenticating a user or UE, authentication protocol negotiations may take place between various network entities. For example, negotiations may take place in networks implementing a single-sign on (SSO) architecture and/or networks implementing a Generic Bootstrapping Architecture (GBA).

Abstract translation: 无线电信网络可以实现各种形式的认证。 存在各种不同的用户和设备认证协议，其遵循类似的网络架构，涉及诸如用户设备（UE），服务提供商（SP）和认证端点（AEP）的各种网络实体。 为了选择用于验证用户或UE的可接受的认证协议或凭证，认证协议协商可以在各种网络实体之间进行。 例如，可以在实现单点登录（SSO）架构和/或实现通用引导架构（GBA）的网络的网络中进行协商。

公开(公告)号：US08856941B2

公开(公告)日：2014-10-07

申请号：US13084840

申请日：2011-04-12

Applicant: Inhyok Cha ,  Yogendra C. Shah ,  Lawrence Case

Inventor： Inhyok Cha ,  Yogendra C. Shah ,  Lawrence Case

IPC: H04L29/06 ,  G06F21/57 ,  H04W12/10 ,  H04W84/04

CPC classification number: G06F21/57 ,  G06F21/86 ,  H04L9/0861 ,  H04L63/08 ,  H04W12/10 ,  H04W84/045

Abstract: Integrity validation of a network device may be performed. A network device comprising a secure hardware module, may receive a root key. The secure hardware module may also receive a first code measurement. The secure hardware module may provide a first key based on the root key and the first code measurement. The secure hardware module may receive a second code measurement and provide a second key based on the first key and the second code measurement. The release of keys based on code measurements may provide authentication in stages.

Abstract translation: 可以执行网络设备的完整性验证。 包括安全硬件模块的网络设备可以接收根密钥。 安全硬件模块还可以接收第一代码测量。 安全硬件模块可以基于根密钥和第一代码测量来提供第一密钥。 安全硬件模块可以接收第二代码测量，并且基于第一密钥和第二代码测量提供第二密钥。 基于代码测量的键的释放可以分阶段地进行认证。