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    • 1. 发明申请
    • SYSTEM AND METHOD FOR TRELLIS CODED QUANTIZATION WITH SELECTIVE FEEDBACK AND INTERPOLATION
    • 用于选择性反馈和插值的TRELLIS编码量化系统和方法
    • WO2015062453A2
    • 2015-05-07
    • PCT/CN2014089514
    • 2014-10-25
    • HUAWEI TECH CO LTD
    • SUH JUNGHOONZHANG JIAYIN
    • H04B7/0417H04B7/024H04B7/0658
    • 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.
    • 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。
    • 2. 发明申请
    • SYSTEMS AND METHODS FOR TRELLIS CODED QUANTIZATION BASED CHANNEL FEEDBACK
    • 用于TRELLIS编码量化的信道反馈的系统和方法
    • WO2015010563A2
    • 2015-01-29
    • PCT/CN2014082368
    • 2014-07-17
    • HUAWEI TECH CO LTD
    • SUH JUNGHOONABOUL-MAGD OSAMA
    • H04W24/00H04B7/06H04B7/08
    • H04B7/0417H04B7/0626H04B7/0663H04L1/0026H04L1/006H04L1/0073
    • System and method embodiments are provided for Trellis Coded Quantization (TCQ) based channel feedback. The embodiments provide full channel state information with a short feedback size to a scheduler in order for the scheduler to apply advanced beamforming schemes, such as those designed in non-linear precoder methods. In an embodiment, a method in a station for providing channel feedback to a transmission point (TP) in a wireless system includes receiving a signal from the TP; estimating channel parameters for the signal; applying a TCQ scheme to the estimated channel parameters to map the channel estimate parameters to trellis codes; and transmitting full channel state information to the TP, wherein the full channel state information comprises output of a Viterbi algorithm (VA) corresponding to the trellis codes.
    • 为基于网格编码量化(TCQ)的信道反馈提供了系统和方法实施例。 这些实施例向调度器提供具有短反馈大小的完整信道状态信息,以便调度器应用高级波束成形方案,例如以非线性预编码器方法设计的那些。 在一个实施例中,一种用于向无线系统中的传输点(TP)提供信道反馈的站中的方法包括从TP接收信号; 估计信号的信道参数; 将TCQ方案应用于估计的信道参数以将信道估计参数映射到网格码; 以及向所述TP发送全信道状态信息,其中所述全信道状态信息包括对应于所述格状码的维特比算法(VA)的输出。
    • 3. 发明申请
    • FAST AUTHENTICATION FOR INTER-DOMAIN HANDOVERS
    • 用于域间切换的快速身份验证
    • WO2015139630A3
    • 2015-11-12
    • PCT/CN2015074473
    • 2015-03-18
    • HUAWEI TECH CO LTD
    • SUN SHENGABOUL-MAGD OSAMAAU KWOK SHUMSUH JUNGHOONSTEPHENNE ALEX
    • H04W12/06H04W12/04
    • H04W12/06H04L9/0844H04L2209/42H04L2209/80H04W12/04H04W36/0038H04W36/14
    • 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.
    • 在使用笔名识别(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身份验证。 具体地,移动设备可以在获得第一无线网络中的认证时导出PID,然后使用该PID在第二无线网络中获得快速认证。 PID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。 然后可以将PID(或其衍生词)提供给第二无线网络中的验证服务器以进行验证。 PID可以通过在线或离线验证程序由第二认证服务器验证。 PID也可以用作访问第二个网络的电子优惠券。