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    SYSTEMS AND METHODS FOR UPLINK SIGNALING USING TIME-FREQUENCY RESOURCES
    1.
    发明申请
    SYSTEMS AND METHODS FOR UPLINK SIGNALING USING TIME-FREQUENCY RESOURCES 审中-公开
    使用时频资源的上行信号的系统和方法

    公开(公告)号：US20160044656A1

    公开(公告)日：2016-02-11

    申请号：US14887244

    申请日：2015-10-19

    Applicant: Apple Inc.

    Inventor： Robert NOVAK ,  Mo-Han FONG ,  Sophie VRZIC ,  Jun YUAN ,  Dong-Sheng YU ,  Jianglei MA

    IPC: H04W72/04 ,  H04L5/00

    CPC classification number: H04W72/0413 ,  H04L1/1812 ,  H04L5/0007 ,  H04L5/0055 ,  H04W52/365 ,  H04W72/04

    Abstract: Methods, base stations and access terminals for uplink signaling are provided. Resource request channel characteristics such as location in time-frequency, sequence, time slot, are assigned to each access terminal to distinguish their resource requests from the resource requests of other access terminals. Access terminals make requests using a resource request on a resource request channel having the assigned characteristics. The base station can then determine which access terminal transmitted the resource request based on the resource request channel characteristics of the resource request channel upon which the resource request was received. The base station then transmits a response to the request which may for example be a new resource allocation, a default allocation or a renewal of a previous allocation.

    Abstract translation: 提供了用于上行链路信令的方法，基站和接入终端。 向每个接入终端分配资源请求信道特性，例如时频，序列，时隙中的位置，以将其资源请求与其他接入终端的资源请求区分开。 接入终端在具有分配特性的资源请求信道上使用资源请求进行请求。 然后，基站可以基于接收资源请求的资源请求信道的资源请求信道特性来确定哪个接入终端发送资源请求。 然后，基站发送对该请求的响应，该请求例如可以是新的资源分配，默认分配或先前分配的更新。

    PREAMBLES IN OFDMA SYSTEM
    4.
    发明申请
    PREAMBLES IN OFDMA SYSTEM 审中-公开
    OFDMA系统中的前缀

    公开(公告)号：US20170005852A1

    公开(公告)日：2017-01-05

    申请号：US15267396

    申请日：2016-09-16

    Applicant: APPLE INC.

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

    IPC: H04L27/26 ,  H04L7/04 ,  H04B7/04 ,  H04L5/00

    CPC classification number: H04L27/2692 ,  H04B7/02 ,  H04B7/0452 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0048 ,  H04L7/043 ,  H04L27/2613 ,  H04L27/265 ,  H04L27/2655 ,  H04L27/2686 ,  H04W24/02

    Abstract: The present invention provides a preamble that is inserted into an OFDMA frame and has a common sequence for all the base stations participating in a transmission. The subscriber station performs fine synchronization using the common sequence on the common preamble, and the resulting peaks will provide the locations of candidate base stations. The base station specific search is then performed in the vicinities of those peaks by using base station specific pseudo-noise sequences. With this two stage cell search, the searching window is drastically reduced. The preamble is matched to known values by a respective receiver to decode the signals and permit multiple signals to be transferred from the transmitter to the receiver. The preamble may comprise two parts, Preamble-1 and Preamble-2, which may be used in different systems, including multioutput, multi-input (MIMO) systems.

    Abstract translation: 本发明提供插入到OFDMA帧中并具有参与传输的所有基站的公共序列的前同步码。 用户站使用公共前导码上的公共序列执行精细同步，并且所得到的峰值将提供候选基站的位置。 然后通过使用基站专用伪噪声序列，在那些峰附近执行基站专用搜索。 通过这两个阶段的单元格搜索，搜索窗口大大减少。 前导码由相应的接收机与已知值匹配以对信号进行解码，并允许多个信号从发射机传送到接收机。 前导码可以包括两个部分，即前导码1和前导码2，其可以在不同的系统中使用，包括多输入多输入（MIMO）系统。

    Handoffs and Handoff Selection in a Wireless Access Network
    6.
    发明申请
    Handoffs and Handoff Selection in a Wireless Access Network 审中-公开
    无线接入网络中的切换和切换选择

    公开(公告)号：US20150065141A1

    公开(公告)日：2015-03-05

    申请号：US14546732

    申请日：2014-11-18

    Applicant: APPLE INC.

    Inventor： Jianglei MA ,  Peiying ZHU ,  Wen TONG ,  Hang ZHANG ,  Mo-Han FONG

    IPC: H04W36/00

    CPC classification number: H04W36/0033 ,  H04W36/18 ,  H04W36/30

    Abstract: The present invention facilitates handoffs for a mobile terminal in a wireless access network that is capable of supporting different types of handoffs. The different handoff types may include soft handoffs and fast base station switching (FBSS). In operation, context information associated with supporting wireless communications between the wireless access network and the mobile terminal are determined. Based on whether the context information is shared between base stations involved in the handoff or transferred from one base station to another of the base stations involved in the handoff, a particular handoff type is selected from the different handoff types that are available. Selecting the specific type of handoff to use may also be based on the level of context information that is available, the actual content of the context information, application preferences, channel conditions, base station or mobile terminal capabilities, or any combination thereof.

    Abstract translation: 本发明有助于能够支持不同类型的切换的无线接入网络中的移动终端的切换。 不同的切换类型可以包括软切换和快速基站切换（FBSS）。 在操作中，确定与支持无线接入网络和移动终端之间的无线通信相关联的上下文信息。 基于上下文信息是否在切换中涉及的基站或从一个基站传送到切换中涉及的基站的另一个基站之间共享，从可用的不同切换类型中选择特定切换类型。 选择要使用的特定类型的切换还可以基于可用的上下文信息的级别，上下文信息的实际内容，应用偏好，信道条件，基站或移动终端能力，或其任何组合。

    Closed-Loop MIMO Systems and Methods
    7.
    发明申请
    Closed-Loop MIMO Systems and Methods 审中-公开
    闭环MIMO系统和方法

    公开(公告)号：US20150036669A1

    公开(公告)日：2015-02-05

    申请号：US14325114

    申请日：2014-07-07

    Applicant: APPLE INC.

    Inventor： Jia MING ,  Jianglei MA ,  Wen TONG ,  Peiying ZHU

    IPC: H04L5/00 ,  H04L27/26 ,  H04B7/04

    CPC classification number: H04L5/0048 ,  H04B7/0417 ,  H04B7/0456 ,  H04B7/0634 ,  H04B7/0639 ,  H04L5/14 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/0242 ,  H04L25/03343 ,  H04L27/2601 ,  H04L27/2613 ,  H04L2025/03426 ,  H04L2025/03802

    Abstract: Methods, devices and systems are provided for transmitting and receiving MIMO signals. In one embodiment, transmitting of the MIMO signals involves pre-coding each of at least two data symbols using a respective pre-coding codeword to preclude a corresponding plurality of pre-coded data symbols. A respective signal is transmitted from each of a plurality of antennas, the respective signal including one of the pre-coded signals and at least one pilot for use in channel estimation. The signals collectively further include at least one beacon pilot vector consisting of a respective beacon pilot per antenna, the beacon pilot vector containing contents known to a receiver for use by the receiver in determining the codeword used to pre-code the at least one data signal.

    Abstract translation: 提供了发送和接收MIMO信号的方法，设备和系统。 在一个实施例中，MIMO信号的发送涉及使用相应的预编码码字对至少两个数据符号中的每一个进行预编码，以排除相应的多个预编码数据符号。 相应的信号从多个天线中的每一个发送，各个信号包括一个预编码信号和至少一个导频，用于信道估计。 信号集体地进一步包括由每个天线的每个信标导频组成的至少一个信标导频向量，信标导频向量包含接收机已知的内容，以供接收机在确定用于对所述至少一个数据信号进行预编码的码字时使用 。

    Communication Resource Allocation Systems and Methods
    8.
    发明申请
    Communication Resource Allocation Systems and Methods 有权
    通信资源分配系统与方法

    公开(公告)号：US20140341066A1

    公开(公告)日：2014-11-20

    申请号：US14450987

    申请日：2014-08-04

    Applicant: APPLE INC.

    Inventor： Hang ZHANG ,  Mo-Han FONG ,  Peiying ZHU ,  Wen TONG ,  Jianglei MA

    IPC: H04L5/00

    CPC classification number: H04W72/0453 ,  H04L5/0058 ,  H04L5/0091 ,  H04L5/0092 ,  H04L27/2601 ,  H04W28/06 ,  H04W72/042

    Abstract: A channel descriptor management message is transmitted on a broadcast connection to a mobile terminal. The channel descriptor management message provides a format for a frame. The frame includes a resource space. The channel descriptor management message defines a plurality of channels within the resource space and allocates at least one of the channels to a plurality of users. Subsequent resource allocation messages may refer to a location within a channel rather than a location within the entire resource space.

    Abstract translation: 信道描述符管理消息在广播连接上被发送到移动终端。 信道描述符管理消息提供帧的格式。 该帧包括资源空间。 信道描述符管理消息定义资源空间内的多个信道，并且将至少一个信道分配给多个用户。 随后的资源分配消息可以指代信道内的位置，而不是整个资源空间内的位置。

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