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    Wireless Feedback System and Method
    32.
    发明申请
    Wireless Feedback System and Method 审中-公开

    公开(公告)号：US20160006492A1

    公开(公告)日：2016-01-07

    申请号：US14853539

    申请日：2015-09-14

    Applicant: Apple Inc.

    Inventor： Wen Tong ,  Hosein Nikopour ,  Amir Khandani ,  Hua Xu ,  Ming Jia ,  Peiying Zhu ,  Dong-sheng Yu

    IPC: H04B7/04 ,  H04B7/06

    CPC classification number: H04B7/0478 ,  H04B7/0417 ,  H04B7/0456 ,  H04B7/0634 ,  H04B7/0639 ,  H04L69/04 ,  H04L69/14

    Abstract: A codebook C is provided in a MIMO transmitter as well as a MIMO receiver. The codebook C will include M codewords ci, where i is a unique codeword index for each codeword ci. Each codeword defines weighting factors to apply to the MIMO signals, and may correspond to channel matrices or vectors to apply to the MIMO signals prior to transmission from the respective antennas of the MIMO transmitter. The present invention creates codeword subsets S1 for each codeword c1 of the codebook C. Each codeword subset S1 defines L codewords cj, which are selected from all the codewords ci in the codebook C. The codewords cj in a codeword subset S1 are the L codewords in the entire codebook that best correlate with the corresponding codeword ci.

    Method and System for a Wireless Multi-Hop Relay Network
    34.
    发明申请
    Method and System for a Wireless Multi-Hop Relay Network 有权
    无线多跳中继网络的方法和系统

    公开(公告)号：US20150237564A1

    公开(公告)日：2015-08-20

    申请号：US14703185

    申请日：2015-05-04

    Applicant: Apple Inc.

    Inventor： Guo Qiang Wang ,  Wen Tong ,  Shiquan Wu

    IPC: H04W40/22 ,  H04B7/155

    CPC classification number: H04B7/15592 ,  H04B7/155 ,  H04B7/2606 ,  H04L45/54 ,  H04L45/586 ,  H04L45/745 ,  H04L47/32 ,  H04W40/12 ,  H04W40/22 ,  H04W40/24 ,  H04W76/12

    Abstract: In a wireless multi-hop relay network arranged in a tree topology, the base station and one or more relay stations are associated as a virtual base station (VBS). The base station and each relay station have a unique virtual base station identifier (VBS-ID) associated with the path defined by the base station and the one or more relay stations. A relay station in the branch uses its VBS-ID for communicating with an attached subscriber station (e.g. a mobile station) such that communications between the base station and subscriber station occur via the VBS. Subscriber station data communications are relayed between the base station and the one or more relay stations over the VBS via a tunnel connection. The VBS is autoconfigurable. Mobility for subscriber stations and relay stations is provided through reconfiguration of VBS's.

    Abstract translation: 在以树形拓扑布置的无线多跳中继网络中，基站和一个或多个中继站作为虚拟基站（VBS）相关联。 基站和每个中继站具有与由基站和一个或多个中继站定义的路径相关联的唯一的虚拟基站标识符（VBS-ID）。 分支中的中继站使用其VBS-ID与附加的用户站（例如移动站）进行通信，使得基站和用户站之间的通信经由VBS发生。 订户站数据通信通过隧道连接在VBS之间在基站和一个或多个中继站之间中继。 VBS是可自动配置的。 通过VBS的重新配置提供用户站和中继站的移动性。

    MIMO based network coding network
    35.
    发明授权
    MIMO based network coding network 有权
    基于MIMO的网络编码网络

    公开(公告)号：US09007986B2

    公开(公告)日：2015-04-14

    申请号：US13944282

    申请日：2013-07-17

    Applicant: Apple Inc.

    Inventor： Jun Yuan ,  Wen Tong ,  Mo-Han Fong ,  Jianming Wu

    IPC: H04B7/14 ,  H04B7/04 ,  H04B7/06 ,  H04B7/155 ,  H04B7/02

    CPC classification number: H04B7/0452 ,  H04B7/026 ,  H04B7/0697 ,  H04B7/15521

    Abstract: A wireless communication system includes an intermediate node, a first node and a second node. A apparatus for implementing MIMO based network coding, comprises the first node transmitting first data to the intermediate node, and the second node transmitting second data to the intermediate node. Both the first node and the second node may use spatial multiplexing or time division multiplexing or frequency division multiplexing on a common/different resource. The intermediate node receives the transmissions from the first node and second node, and performs network coding on the first data and second data using a predefined network coding scheme to produce network coded information. The intermediate node transmits the network coded information to the first node and second node using multi-user MIMO and each first or second node receives the MIMO transmissions from the intermediate node and applies network decoding procedures to recover the first data and second data.

    Abstract translation: 无线通信系统包括中间节点，第一节点和第二节点。 一种用于实现基于MIMO的网络编码的装置，包括：第一节点向中间节点发送第一数据，第二节点向第二节点发送第二数据。 第一节点和第二节点都可以在公共/不同资源上使用空间复用或时分复用或频分复用。 中间节点接收来自第一节点和第二节点的传输，并且使用预定义的网络编码方案对第一数据和第二数据执行网络编码以产生网络编码信息。 中间节点使用多用户MIMO将网络编码信息发送到第一节点和第二节点，并且每个第一或第二节点从中间节点接收MIMO传输，并应用网络解码过程来恢复第一数据和第二数据。

    Method and systems for OFDM using code division multiplexing
    36.
    发明授权
    Method and systems for OFDM using code division multiplexing 有权
    使用码分复用的OFDM方法和系统

    公开(公告)号：US08976843B2

    公开(公告)日：2015-03-10

    申请号：US14079131

    申请日：2013-11-13

    Applicant: Apple Inc.

    Inventor： Jianglei Ma ,  Ming Jia ,  Wen Tong ,  Peiying Zhu ,  Hua Zhu ,  Hang Zhang ,  Mo-Han Fong

    IPC: H04B1/707 ,  H04J13/00 ,  H04B7/06 ,  H04L5/00 ,  H04L25/02 ,  H04L27/26 ,  H04J13/16 ,  H04L25/03

    CPC classification number: H04J13/0003 ,  H04B1/707 ,  H04B7/0404 ,  H04B7/0678 ,  H04J13/00 ,  H04J13/16 ,  H04L5/0016 ,  H04L5/0026 ,  H04L5/0048 ,  H04L5/005 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/0232 ,  H04L25/03866 ,  H04L27/2613 ,  H04L27/2627 ,  H04W72/044

    Abstract: In some embodiments of the invention, OFDM symbols are transmitted as a plurality of clusters. A cluster includes a plurality of OFDM sub-carriers in frequency, over a plurality of OFDM symbol durations in time. Each cluster includes data as well as pilot information as a reference signal for channel estimation. In some embodiments, a plurality of clusters collectively occupy the available sub-carrier set in the frequency domain that is used for transmission. In some embodiments of the invention data and/or pilots are spread within each cluster using code division multiplexing (CDM). In some embodiments pilots and data are separated by distributing data on a particular number of the plurality of OFDM symbol durations and pilots on a remainder of the OFDM symbol durations. CDM spreading can be performed in time and/or frequency directions.

    Abstract translation: 在本发明的一些实施例中，OFDM符号作为多个簇发送。 在多个OFDM符号持续时间内，群集包括频率上的多个OFDM子载波。 每个簇包括数据以及作为信道估计的参考信号的导频信息。 在一些实施例中，多个集群共同地占用用于传输的频域中的可用子载波集合。 在本发明的一些实施例中，使用码分多路复用（CDM）在每个簇内扩展数据和/或导频。 在一些实施例中，通过在OFDM码元持续时间的其余部分上分配关于多个OFDM符号持续时间的特定数目和导频上的数据来分离导频和数据。 可以在时间和/或频率方向上执行CDM扩展。

    Quality of service control in multiple hop wireless communication environments
    38.
    发明授权
    Quality of service control in multiple hop wireless communication environments 有权
    多跳无线通信环境中的服务质量控制

    公开(公告)号：US08958300B2

    公开(公告)日：2015-02-17

    申请号：US13632366

    申请日：2012-10-01

    Applicant: Apple Inc.

    Inventor： Hang Zhang ,  Peiying Zhu ,  Wen Tong ,  Gamini Senarath ,  Derek Yu ,  David G. Steer

    IPC: H04W4/00 ,  H04L12/28 ,  G01R31/08 ,  H04B7/26 ,  H04L12/46 ,  H04W76/02 ,  H04W16/26 ,  H04W28/18 ,  H04W84/04

    CPC classification number: H04W40/12 ,  H04B7/2606 ,  H04L12/4633 ,  H04L47/24 ,  H04L47/28 ,  H04L69/22 ,  H04W16/26 ,  H04W28/18 ,  H04W28/24 ,  H04W40/22 ,  H04W72/0413 ,  H04W72/042 ,  H04W76/12 ,  H04W84/047 ,  H04W84/12

    Abstract: One or more relay stations may be employed along a wireless communication access path between an ingress station and an egress station. A logical communication tunnel is established between the ingress and egress stations through any number of intermediate relay stations to handle session flows of PDUs. As PDUs arrive, the ingress station may determine and add scheduling information to the PDUs before they are delivered to the downstream intermediate relay stations or egress stations. The scheduling information is used by the downstream stations to schedule the PDUs for further delivery. The scheduling information may also be used by the egress station to schedule the PDUs for delivery. The scheduling information added to the PDU by the ingress station bears on a QoS class associated with the PDU, a deadline for the egress station to deliver the PDU, or a combination thereof.

    Abstract translation: 可以沿入站和出站之间的无线通信接入路径采用一个或多个中继站。 通过任意数量的中间中继站在进入和出站之间建立逻辑通信隧道，以处理PDU的会话流。 当PDU到达时，进入站可以在PDU递送到下游中间中继站或出站之前确定并将调度信息添加到PDU。 下游站使用调度信息来调度PDU以进一步传送。 调度信息也可以由出站使用，以调度用于传送的PDU。 由入站站添加到PDU的调度信息承载在与PDU相关联的QoS类别，出站台递送PDU的最后期限或其组合。

    Pilot Scheme for a MIMO Communication System
    39.
    发明申请
    Pilot Scheme for a MIMO Communication System 审中-公开
    MIMO通信系统的试验方案

    公开(公告)号：US20150010097A1

    公开(公告)日：2015-01-08

    申请号：US14493591

    申请日：2014-09-23

    Applicant: Apple Inc.

    Inventor： Jianglei Ma ,  Ming Jia ,  Hua Xu ,  Wen Tong ,  Peiying Zhu ,  Moussa Abdi

    IPC: H04L5/00 ,  H04W88/08 ,  H04B7/04

    CPC classification number: H04B7/0452 ,  H04B7/0413 ,  H04J13/18 ,  H04J2013/165 ,  H04L1/0625 ,  H04L5/001 ,  H04L5/0026 ,  H04L5/0032 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0051 ,  H04L25/0226 ,  H04L25/0228 ,  H04L27/2613 ,  H04W72/04 ,  H04W72/044 ,  H04W88/08

    Abstract: The present invention employs a pilot scheme for frequency division multiple access (FDM) communication systems, such as single carrier FDM communication systems. A given transmit time interval will include numerous traffic symbols and two or more short pilot symbols, which are spaced apart from one another by at least one traffic symbol and will have a Fourier transform length that is less than the Fourier transform length of any given traffic symbol. Multiple transmitters will generate pilot information and modulate the pilot information onto sub-carriers of the short pilot symbols in an orthogonal manner. Each transmitter may use different sub-carriers within the time and frequency domain, which is encompassed by the short pilot symbols within the transmit time interval. Alternatively, each transmitter may uniquely encode the pilot information using a unique code division multiplexed code and modulate the encoded pilot information onto common sub-carriers of the short pilot symbols.

    Abstract translation: 本发明采用诸如单载波FDM通信系统的频分多址（FDM）通信系统的导频方案。 给定的传输时间间隔将包括多个业务符号和两个或更多个短导频符号，它们彼此间隔开至少一个业务符号，并且将具有小于任何给定业务的傅里叶变换长度的傅里叶变换长度 符号。 多个发射机将产生导频信息，并以正交方式将导频信息调制到短导频符号的子载波上。 每个发射机可以在时间和频域内使用不同的子载波，由发射时间间隔内的短导频符号包围。 或者，每个发射机可以使用唯一的码分多路复用码对导频信息进行唯一的编码，并将编码的导频信息调制到短导频符号的公共子载波上。

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