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    System and Method for OFDMA Resource Management in WLAN
    1.
    发明申请
    System and Method for OFDMA Resource Management in WLAN 有权
    WLAN中OFDMA资源管理的系统和方法

    公开(公告)号：US20150341933A1

    公开(公告)日：2015-11-26

    申请号：US14299797

    申请日：2014-06-09

    Applicant: Futurewei Technologies, Inc.

    Inventor： Osama Aboul-Magd ,  Kwok Shum Au ,  Junghoon Suh

    IPC: H04W72/04 ,  H04W56/00

    CPC classification number: H04W72/0453 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0091 ,  H04L5/0098 ,  H04W56/001 ,  H04W72/0446 ,  H04W84/12

    Abstract: Embodiments are provided for implementing a control function in a Wireless Local Area Network (WLAN) for allocation of resources to multiple stations (STAs) to enable Orthogonal Frequency Division Multiple Access (OFDMA) communications. An embodiment method includes determining a plurality of transmission resources for OFDMA communications of a plurality of STAs in the WLAN. The determination includes allocating a plurality of subcarriers to the STAs. The method further includes signaling the determined transmission resources to the STAs. The signaling of the transmission resources is piggybacked on at least one of data and management frames, such as in a sub-header of a MAC frame, or is an explicit signaling, such as in one or more dedicated fields of a traffic specification information element. The transmission resources for OFDMA communications allow simultaneous transmissions of the STAs in the WLAN.

    Abstract translation: 提供了用于在无线局域网（WLAN）中实现用于向多个站（STA）分配资源以实现正交频分多址（OFDMA）通信的控制功能的实施例。 一种实施方式包括确定用于WLAN中的多个STA的OFDMA通信的多个传输资源。 确定包括将多个子载波分配给STA。 所述方法还包括将确定的传输资源发送给STA。 传输资源的信令被背负在诸如在MAC帧的子报头中的数据和管理帧中的至少一个上，或者是明确的信令，诸如在业务规范信息元素的一个或多个专用字段中 。 用于OFDMA通信的传输资源允许WLAN中的STA的同时传输。

    System and Method for WLAN OFDMA Design of Subcarrier Groups and Frame Format
    2.
    发明申请
    System and Method for WLAN OFDMA Design of Subcarrier Groups and Frame Format 有权
    用于WLAN OFDMA设计的子载波组和帧格式的系统和方法

    公开(公告)号：US20150173070A1

    公开(公告)日：2015-06-18

    申请号：US14325136

    申请日：2014-07-07

    Applicant: Futurewei Technologies, Inc.

    Inventor： Osama Aboul-Magd ,  Junghoon Suh ,  Kwok Shum (Edward) Au

    IPC: H04W72/04

    CPC classification number: H04L5/0007 ,  H04L5/0055 ,  H04L5/0091 ,  H04L5/14 ,  H04L5/1438 ,  H04L27/2602 ,  H04L27/2656 ,  H04W72/0446 ,  H04W74/0816 ,  H04W84/12

    Abstract: Embodiments are provided for WLAN Orthogonal Frequency Division Multiple Access (OFDMA) design of subcarrier groups and corresponding frame format. An embodiment method includes grouping a plurality of subcarriers for OFDMA transmissions into a plurality of subcarrier groups in accordance with a pre-defined grouping structure for subcarriers. The method further includes allocating the subcarrier groups to a plurality of corresponding users, and signaling, to the users, a map of the subcarrier groups to the corresponding users. According to the pre-defined grouping structure, each one of the subcarrier groups includes a plurality of consecutive subcarriers, a plurality of non-consecutive subcarriers, or a combination of consecutive and non-consecutive subcarriers according to a deterministic structure. The map is signaled using an OFDMA PPDU comprising a legacy preamble portion configured to silence legacy users that do not use OFDMA communications, an OFDMA preamble portion indicating the map, and a data portion.

    Abstract translation: 提供了用于子载波组的WLAN正交频分多址（OFDMA）设计和相应帧格式的实施例。 一种实施方式包括根据子载波的预定义分组结构将用于OFDMA传输的多个子载波分组成多个子载波组。 该方法还包括将子载波组分配给多个对应的用户，以及向用户发送子载波组到对应用户的映射。 根据预定义的分组结构，根据确定性结构，子载波组中的每一个包括多个连续子载波，多个非连续子载波，或连续和非连续子载波的组合。 使用包括被配置为使不使用OFDMA通信的传统用户静默的传统前导码部分的OFDMA PPDU，指示该映射的OFDMA前导码部分和数据部分来发信号通知该映射。

    Dual-stream signal (SIG) field encoding with higher order modulation
    3.
    发明授权
    Dual-stream signal (SIG) field encoding with higher order modulation 有权
    具有高阶调制的双流信号（SIG）场编码

    公开(公告)号：US09001930B2

    公开(公告)日：2015-04-07

    申请号：US13771356

    申请日：2013-02-20

    Applicant: FutureWei Technologies, Inc.

    Inventor： Junghoon Suh ,  Osama Aboul-Magd ,  Kwok Shum Au

    IPC: H04L27/20 ,  H04L27/26 ,  H04L1/06

    CPC classification number: H04W28/065 ,  H04L1/0643 ,  H04L5/0023 ,  H04L27/20 ,  H04L27/2602 ,  H04L27/2613 ,  H04W84/12

    Abstract: Signal (SIF) field capacity can be significantly increased by encoding SIG field data using two streams in accordance with a space-time block code (STBC) encoding scheme. Dual-stream SIG field encoding allows for the utilization of higher order modulation schemes, such as quadrature phase-shift keying (QPSK), which increases SIG field capacity. Dual-stream encoded SIG fields are transmitted using an omnidirectional beam to allow mobile stations to accurately decode the SIG field irrespective of their spatial location.

    Abstract translation: 根据空时块码（STBC）编码方案，通过使用两个流编码SIG场数据可以显着增加信号（SIF）场容量。 双流SIG字段编码允许利用诸如正交相移键控（QPSK）的更高阶调制方案，这增加了SIG场容量。 双流编码的SIG字段使用全向光束传输，以允许移动台准确地解码SIG字段，而不考虑它们的空间位置。

    Systems and Methods for Operation of Wireless User Devices with Cellular and Wi-Fi Interfaces
    4.
    发明申请
    Systems and Methods for Operation of Wireless User Devices with Cellular and Wi-Fi Interfaces 审中-公开
    具有蜂窝和Wi-Fi接口的无线用户设备的操作系统和方法

    公开(公告)号：US20140341129A1

    公开(公告)日：2014-11-20

    申请号：US14279038

    申请日：2014-05-15

    Applicant: Futurewei Technologies, Inc.

    Inventor： Peiying Zhu ,  Osama Aboul-Magd ,  Junghoon Suh ,  Kwok Shum Au ,  Sheng Sun

    IPC: H04W16/14 ,  H04W74/08 ,  H04W56/00 ,  H04W40/32

    CPC classification number: H04W56/0015 ,  H04L5/00 ,  H04L5/0007 ,  H04W28/0289 ,  H04W40/32 ,  H04W72/04 ,  H04W72/12 ,  H04W74/0816 ,  H04W76/15 ,  H04W88/06

    Abstract: An embodiment method for wireless communication includes grouping a plurality of user equipments (UEs) wirelessly coupled to a cellular base station (BS) into a UE cluster to function as a Wi-Fi virtual station (V-STA), and communicating with an access point (AP) to contend for a Wi-Fi transmission opportunity (TXOP) for the V-STA. In a further embodiment, the cellular BS contends for the TXOP on behalf of the UE cluster using a carrier sense multiple access with collision avoidance (CSMA-CA) procedure. In an alternative embodiment, one UE in the UE cluster is selected as a leader UE to contend for the TXOP on behalf of the UE cluster using a CSMA-CA procedure.

    Abstract translation: 一种用于无线通信的实施例方法包括将与蜂窝基站（BS）无线耦合的多个用户设备（UE）分组为UE群集以用作Wi-Fi虚拟站（V-STA），并与接入通信 （AP）来争夺V-STA的Wi-Fi传输机会（TXOP）。 在另一实施例中，蜂窝BS使用具有冲突避免（CSMA-CA）过程的载波侦听多路访问来代表UE群集竞争TXOP。 在替代实施例中，UE集群中的一个UE被选择为领先UE，以使用CSMA-CA过程代表UE集群争取TXOP。

    System and Method for Coordinated Beamforming for Overlapping Basic Service Set in WLAN
    6.
    发明申请
    System and Method for Coordinated Beamforming for Overlapping Basic Service Set in WLAN 有权
    WLAN中重叠基本业务集的协调波束成形系统与方法

    公开(公告)号：US20160029227A1

    公开(公告)日：2016-01-28

    申请号：US14340175

    申请日：2014-07-24

    Applicant: Futurewei Technologies, Inc.

    Inventor： Osama Aboul-Magd ,  Kwok Shum (Edward) Au ,  Junghoon Suh

    IPC: H04W16/28 ,  H04L5/00

    CPC classification number: H04W16/28 ,  H04L5/0035 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0057 ,  H04W84/12 ,  H04W88/08 ,  H04W92/20

    Abstract: Embodiments are provided for enabling a coordinated beamforming (CB) mechanism in WLAN scenarios. In an embodiment, an AP sends a Feedback Request (FBR) frame to each one of the STAs in the OBSSs. The OBSSs comprise the STAs and a plurality of APs including the AP. The AP then receives a feedback frame from each STA of the STAs that participate in the CB transmission. The feedback frame includes channel state information (CSI) of the STA. The CSI enables the sending AP of performing CB on downlink. In an embodiment, the AP receives an initiate CB frame from a second AP initiating a CB transmission, and then sends an ACK frame to the second AP before sending the FBR frame to each one of the STAs. The AP starts the CB transmission with each one of the other APs that participate in the CB transmission.

    Abstract translation: 提供了实现以在WLAN场景中实现协调的波束成形（CB）机制。 在一个实施例中，AP向OBSS中的每个STA发送反馈请求（FBR）帧。 OBSS包括STA和包括AP的多个AP。 AP然后从参与CB传输的STA的每个STA接收反馈帧。 反馈帧包括STA的信道状态信息（CSI）。 CSI可以在下行链路上发送执行CB的AP。 在一个实施例中，AP从发起CB传输的第二AP接收起始CB帧，然后在向每个STA发送FBR帧之前向第二AP发送ACK帧。 AP通过参与CB传输的其他AP中的每一个启动CB传输。

    System and method for preambles in a wireless communications network
    7.
    发明授权
    System and method for preambles in a wireless communications network 有权
    无线通信网络中前导码的系统和方法

    公开(公告)号：US09071489B2

    公开(公告)日：2015-06-30

    申请号：US13660934

    申请日：2012-10-25

    Applicant: FutureWei Technologies, Inc.

    Inventor： Junghoon Suh ,  Yunbo Li ,  Kwok Shum Au ,  Osama Aboul-Magd ,  Sheng Sun

    IPC: H04L27/26 ,  H04W84/12 ,  H04B7/06 ,  H04L5/00

    CPC classification number: H04W28/06 ,  H04B7/0617 ,  H04B7/0689 ,  H04L5/0048 ,  H04L5/0053 ,  H04L27/2613 ,  H04L69/22 ,  H04W84/12

    Abstract: A method for transmitting a frame includes generating an omni portion of the frame, the omni portion including a non-beamformed long training field and a signal field, the non-beamformed long training field including channel estimation information used to decode the signal field, the non-beamformed long training field configured to be transmitted through one of multiple antennas and multiple streams. The method also includes generating a multi-stream portion of the frame, the multi-stream portion including a data field and a multi-stream long training field, the multi-stream long training field including station-specific decoding information for station-specific data in the data field. The method further includes applying a beamforming indicator to the signal field of the omni portion, and transmitting the frame.

    Abstract translation: 用于发送帧的方法包括生成帧的全方位部分，全方位部分包括非波束形成的长训练场和信号场，非波束形成的长训练场包括用于解码信号场的信道估计信息， 非波束形成的长训练场被配置为通过多个天线和多个流中的一个发射。 该方法还包括生成帧的多流部分，多流部分包括数据字段和多流长训练字段，多​​流长训练字段包括用于站特定数据的站特定解码信息 在数据字段中。 该方法还包括将波束形成指示符应用于全方位部分的信号域，以及传送该帧。

    Systems and Methods for Trellis Coded Quantization Based Channel Feedback
    8.
    发明申请
    Systems and Methods for Trellis Coded Quantization Based Channel Feedback 有权
    基于网格编码量化的信道反馈的系统与方法

    公开(公告)号：US20150023440A1

    公开(公告)日：2015-01-22

    申请号：US13947721

    申请日：2013-07-22

    Applicant: FutureWei Technologies, Inc.

    Inventor： Junghoon Suh ,  Osama Aboul-Magd

    IPC: H04B7/04 ,  H04L1/00

    CPC classification number: H04B7/0417 ,  H04B7/0626 ,  H04B7/0663 ,  H04L1/0026 ,  H04L1/006 ,  H04L1/0073

    Abstract: 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.

    Abstract translation: 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。

    System and Method for Scheduling Communications
    9.
    发明申请
    System and Method for Scheduling Communications 审中-公开
    调度通信的系统和方法

    公开(公告)号：US20130223313A1

    公开(公告)日：2013-08-29

    申请号：US13770886

    申请日：2013-02-19

    Applicant: FUTUREWEI TECHNOLOGIES, INC.

    Inventor： Osama Aboul-Magd ,  Kwok Shum Au

    IPC: H04W72/04 ,  H04W52/02

    CPC classification number: H04W72/04 ,  H04W52/0209 ,  H04W52/0248 ,  H04W74/04 ,  Y02D70/142 ,  Y02D70/144

    Abstract: A method for operating a station includes scheduling a first appointment at a first time with an access point to communicate with the access point in response to a first message from the access point, wherein the first message indicates that the station has ownership of a communications medium used by the station at the first time. The method also includes transmitting a second message to the access point in accordance with the first appointment.

    Abstract translation: 用于操作站的方法包括：响应于来自接入点的第一消息，利用接入点在第一时间安排第一约定与接入点进行通信，其中第一消息指示站具有通信介质的所有权 由车站第一次使用。 该方法还包括根据第一约会向接入点发送第二消息。

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