公开(公告)号：US09264900B2

公开(公告)日：2016-02-16

申请号：US14218567

申请日：2014-03-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sheng Sun ,  Osama Aboul-Magd ,  Kwok Shum (Edward) Au ,  Junghoon Suh ,  Alex Stephenne

IPC: H04M1/66 ,  H04W12/06 ,  H04W36/00 ,  H04W12/04

CPC classification number: H04W12/06 ,  H04L9/0844 ,  H04L2209/42 ,  H04L2209/80 ,  H04W12/04 ,  H04W36/0038 ,  H04W36/14

Abstract: Fast mobile device authentication can be achieved during inter-domain handovers between administrative domains operating under a federated service agreement using pseudonym identifications (PID). Specifically, the mobile device may derive a PID when obtaining authentication in a first wireless network, and then use the PID to obtain fast authentication in a second wireless network. The PID may be generated during an Elliptic curve Diffie-Hellman (ECDH) authentication procedure using public keys associated with the mobile device and the first wireless network. The PID (or a derivative thereof) may then be provided to an authentication server in a second wireless network for validation. The PID may be validated by the second authentication server via online or offline validation procedures. The PID can also be used as an electronic coupon for accessing the second network.

Abstract translation: 在使用假名识别（PID）的联合服务协议下运行的管理域之间的域间切换期间，可以实现快速移动设备认证。 具体地，当在第一无线网络中获得认证时，移动设备可以导出PID，然后使用PID在第二无线网络中获得快速认证。 可以在使用与移动设备和第一无线网络相关联的公钥的椭圆曲线Diffie-Hellman（ECDH）认证过程期间生成PID。 然后可以将PID（或其导数）提供给第二无线网络中的认证服务器以进行验证。 PID可以由第二认证服务器通过在线或离线验证过程来验证。 PID也可以用作访问第二个网络的电子优惠券。

公开(公告)号：US09209869B2

公开(公告)日：2015-12-08

申请号：US14070233

申请日：2013-11-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Junghoon Suh ,  Jiayin Zhang

IPC: H04K1/10 ,  H04B7/04 ,  H04B7/02

CPC classification number: H04B7/0417 ,  H04B7/024 ,  H04B7/0658

Abstract: A method for providing channel feedback includes receiving a signal from a transmission point (TP), estimating channel parameters from the signal as received, mapping the estimated channel parameters to a trellis in accordance with a Trellis Coded Quantization (TCQ) scheme, and applying a Viterbi algorithm (VA) to the trellis to generate quantized channel parameters, the quantized channel parameters including a plurality of samples. The method also includes identifying samples of the estimated channel parameters associated with samples of quantized channel parameters having quantization errors above a predetermined threshold, generating indicators in accordance with the samples having the quantization error above the predetermined threshold, and transmitting, by the RP, the quantized channel parameters and the indicators to the TP.

Abstract translation: 一种用于提供信道反馈的方法包括从传输点（TP）接收信号，从接收到的信号估计信道参数，根据网格编码量化（TCQ）方案将估计的信道参数映射到网格，以及应用 维特比算法（VA）到网格以生成量化的信道参数，量化的信道参数包括多个样本。 该方法还包括识别与具有高于预定阈值的量化误差的量化信道参数的样本相关联的估计信道参数的样本，根据具有高于预定阈值的量化误差的样本生成指示符，以及由RP发送 量化通道参数和指标到TP。