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    METHODS AND USER EQUIPMENT IN A WIRELESS COMMUNICATION NETWORK
    3.
    发明申请
    METHODS AND USER EQUIPMENT IN A WIRELESS COMMUNICATION NETWORK 有权
    无线通信网络中的方法和用户设备

    公开(公告)号：US20150078490A1

    公开(公告)日：2015-03-19

    申请号：US14031805

    申请日：2013-09-19

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Sha HU ,  Fredrik Rusek ,  Gengshi WU ,  Shashi Kant ,  Basuki Endah Priyanto ,  Jianjun Chen

    IPC: H04L1/00 ,  H04B7/04 ,  H04W24/02

    CPC classification number: H04L1/0054 ,  H04B7/0413 ,  H04L25/0328 ,  H04L25/03318 ,  H04L25/03891 ,  H04W24/02

    Abstract: A user equipment (UE) and a method are presented. The UE comprises a receiver unit and a processing circuit, and is configured for receiving wireless signals. The processing circuit is arranged for performing pre-detection of the received signals providing an initial estimation of transmitted signals. The processing circuit is also arranged for splitting the transmitted signal into disjoint subgroups, each one covering a subgroup of all layers used for the transmitted signal such that the subgroups together cover all the layers. The processing circuit is also arranged for interference cancellation performed on the subgroups of transmitted signals based on the initial estimation of the transmitted signals. The processing circuit is also arranged for detection of the subgroups of transmitted signals by utilization of an MLD algorithm, wherein the subgroup of layers within each one of the subgroups of transmitted signals is detected simultaneously.

    Abstract translation: 提出了一种用户设备（UE）和方法。 UE包括接收机单元和处理电路，并且被配置为用于接收无线信号。 该处理电路用于执行提供传输信号的初始估计的接收信号的预检测。 处理电路还被布置为将发送的信号分离成不相交的子组，每个子组覆盖用于发送信号的所有层的子组，使得子组一起覆盖所有层。 处理电路还被布置成基于发射信号的初始估计对发射信号的子组执行干扰消除。 该处理电路还用于利用MLD算法来检测发送信号的子组，其中同时检测发送信号的每个子组内的每个子组的子组。

    Receiving Device and Methods Thereof
    6.
    发明申请
    Receiving Device and Methods Thereof 审中-公开

    公开(公告)号：US20180083733A1

    公开(公告)日：2018-03-22

    申请号：US15822847

    申请日：2017-11-27

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Jianjun Chen ,  Fredrik Rusek ,  Junshi Chen ,  Peter Almers ,  Baicheng Xu

    IPC: H04L1/00 ,  H04L25/03

    CPC classification number: H04L1/0048 ,  H04J11/0043 ,  H04L25/03006

    Abstract: A receiving device including a receiver configured to receive a communication signal (CS) in a current time frame, and a processor configured to determine a set of candidate Control Channels (CCHs), determine a decoding order for the candidate CCHs in the set, decode at least one candidate CCH in the set according to the decoding order, compute a possible Radio Network Temporary Identifier (RNTI) for the decoded candidate CCH, compute a metric value (MV) for the decoded candidate CCH, the MV provides an indication when the decoded candidate CCH might be an actual CCH, determine when the decoded candidate CCH is an actual CCH based on the computed possible RNTI and the MV, derive control information (CI) from the decoded candidate CCH when the decoded candidate CCH is determined as an actual CCH, and cancel or suppress interference in the CS based on the derived CI.

    Method and Receiver in a Wireless Communication System
    7.
    发明申请
    Method and Receiver in a Wireless Communication System 审中-公开

    公开(公告)号：US20170288931A1

    公开(公告)日：2017-10-05

    申请号：US15624362

    申请日：2017-06-15

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Fredrik Rusek

    IPC: H04L27/26

    CPC classification number: H04L27/2657 ,  H04L27/266 ,  H04L27/2675 ,  H04L27/2684

    Abstract: A receiver and method applied to the receiver, for estimating a normalized frequency offset value ε between a transmitter and the receiver in a wireless communication system, based on Orthogonal Frequency Division Multiplexing (OFDM), where the method includes receiving a first pilot signal (yr1) and a second pilot signal (yr2), from the transmitter, determining a correlation model to be applied based on correlation among involved sub-carrier channels at the yr1 and the yr2, computing three complex values μ−1, μ0, and μ1, by a complex extension of a log-likelihood function (λ(ε)), based on the determined correlation model, and estimating the ε by finding a maximum value of a Karhunen-Loeve approximation of the λ(ε), based on the computed three complex values μ−1, μ0, and μ1.

    METHOD AND NODES IN A WIRELESS COMMUNICATION SYSTEM
    8.
    发明申请
    METHOD AND NODES IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
    无线通信系统中的方法和方法

    公开(公告)号：US20150146546A1

    公开(公告)日：2015-05-28

    申请号：US14087825

    申请日：2013-11-22

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Shashi Kant ,  Fredrik Rusek ,  Sha Hu ,  Basuki Endah Priyanto

    IPC: H04W24/10 ,  H04B7/04

    CPC classification number: H04B7/0413 ,  H04B7/0848

    Abstract: UE (120) and method (500) in a UE (120), for MIMO detection of signals received from a radio network node (110), comprised in a wireless communication network (100). The method (500) comprises receiving (501) a signal of the radio network node (110). The method (500) also comprises establishing (510) a list of hypotheses candidate vector. Furthermore, the method (500) in addition comprises computing (511) path metrics of the established (510) list of hypotheses candidate vector, and thereby computing LLRs utilising the computed path metrics for achieving MIMO detection.

    Abstract translation: UE（120）中的UE（120）和方法（500），用于对包括在无线通信网络（100）中的无线电网络节点（110）接收的信号进行MIMO检测。 方法（500）包括接收（501）无线电网络节点（110）的信号。 方法（500）还包括建立（510）假设候选向量的列表。 此外，方法（500）另外包括计算（511）所建立的（510）假设候选向量列表的路径量度，从而利用计算出的路径度量来计算LLR以实现MIMO检测。

    Method and Apparatus for Detecting Data in Wireless Communication Networks
    10.
    发明申请
    Method and Apparatus for Detecting Data in Wireless Communication Networks 审中-公开

    公开(公告)号：US20170288902A1

    公开(公告)日：2017-10-05

    申请号：US15629181

    申请日：2017-06-21

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Fredrik Rusek ,  Sha Hu

    IPC: H04L25/03 ,  H04L27/34 ,  H04B17/336 ,  H04L1/00 ,  H04M1/725 ,  H04W76/04

    CPC classification number: H04L25/03203 ,  H04B17/336 ,  H04L1/0042 ,  H04L25/03968 ,  H04L27/3461 ,  H04M1/72519 ,  H04W76/25

    Abstract: An apparatus including a processor configured to receive a digital communication signal having a plurality of transmitted layers. The processor is configured to determine an estimated channel matrix based on the digital communication signal, determine a first estimated transmitted symbol vector and a mean square error matrix based on a linear analysis of the received digital communication signal. A first set of bit LLR are determined based on a LMMSE type detector and a second set of bit LLR are determined based on a novel simplified tree search process. The two sets of bit LLR are then combined and used to detect the data in the received communication signal. The simplified tree search process uses a specially formed channel shortening process to determine a set of shortened channel correlation matrices that allow the second set of bit LLR to be determined using an alternative marginalized tree search process.

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