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    Mixed mode operations within multiple user, multiple access, and/or MIMO wireless communications
    33.
    发明申请
    Mixed mode operations within multiple user, multiple access, and/or MIMO wireless communications 有权
    多用户，多路访问和/或MIMO无线通信中的混合模式操作

    公开(公告)号：US20160241312A1

    公开(公告)日：2016-08-18

    申请号：US15140858

    申请日：2016-04-28

    Applicant: BROADCOM CORPORATION

    Inventor： Peiman Amini ,  Matthew James Fischer ,  Vinko Erceg ,  Joonsuk Kim ,  Joseph Paul Lauer

    IPC: H04B7/04 ,  H04L5/00 ,  H04W74/08

    CPC classification number: H04B7/0413 ,  H04L5/0007 ,  H04L27/2601 ,  H04W28/06 ,  H04W74/02 ,  H04W74/0816 ,  H04W84/12 ,  H04W88/06

    Abstract: Mixed mode operations within multiple user, multiple access, and/or MIMO wireless communications. Certain communication systems can include wireless communication devices of various capabilities therein (e.g., IEEE Task Group ac (TGac VHT), IEEE 802.11 amendment TGn, IEEE 802.11 amendment TGa, and/or other capabilities, etc.). In one manner of classification, wireless communication devices having legacy and newer/updated capabilities may inter-operate with one another, operate within a common region, and/or communicate via a common access point (AP). Coordination of such wireless communication devices (e.g., legacy and newer/updated) provides for their respective operation on a same set of clusters in accordance with various operational modes including: (1) time dividing medium access between the wireless communication devices of various capabilities, (2) assigning primary cluster(s) for a first capability set and assigning non-primary cluster(s) for a second capability set, etc., and/or (3) any combination of operational modes (1) and (2).

    Abstract translation: 多用户，多路访问和/或MIMO无线通信中的混合模式操作。 某些通信系统可以包括其中各种能力的无线通信设备（例如，IEEE任务组ac（TGac VHT），IEEE 802.11修订TGn，IEEE 802.11修订TGA和/或其他功能等）。 在一种分类方式中，具有传统和更新/更新能力的无线通信设备可以彼此互操作，在公共区域内操作和/或经由公共接入点（AP）进行通信。 这样的无线通信设备（例如，传统的和更新的/更新的）的协调根据各种操作模式在同一组集群上提供它们各自的操作，包括：（1）各种能力的无线通信设备之间的时分介质访问， （2）分配用于第一能力集合的主集群和为第二能力集合分配非主集群等，和/或（3）操作模式（1）和（2）的任何组合， 。

    Explicit feedback format within single user, multiple user, multiple access, and/or MIMO wireless communications
    34.
    发明授权
    Explicit feedback format within single user, multiple user, multiple access, and/or MIMO wireless communications 有权

    公开(公告)号：US09356664B2

    公开(公告)日：2016-05-31

    申请号：US13955070

    申请日：2013-07-31

    Applicant: BROADCOM CORPORATION

    Inventor： Joonsuk Kim ,  Ron Porat ,  Vinko Erceg

    IPC: H04B7/00 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08

    CPC classification number: H04B7/0452 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/043 ,  H04B7/0636 ,  H04B7/0689 ,  H04B7/0871 ,  H04L5/0048 ,  H04W88/06

    Abstract: Explicit feedback format within single user, multiple user, multiple access, and/or MIMO wireless communications. A beamformer provides a first communication to a beamformee, and based thereon, the beamformee may ascertain certain characteristics associated with the type and format of feedback to be provided to the beamformee via a second communication from the beamformee to the beamformer. For example, the first communication may include indication of a current operational mode, such as whether it is in accordance with single-user multiple input multiple output (SU-MIMO) or multi-user multiple-input-multiple-output (MU-MIMO). Also, the first communication may indicate a requested steering matrix's rank to be employed in accordance with subsequent beamforming by the beamformer. Also, additional information such as that pertaining to per-tone SNR values for each respective space-time stream, per-tone or per-sub-band eigen-values, the particular channel width being employed (e.g., 20, 40, 80, or 160 MHz), etc. may be included within the second communication.

    Addressing for a multi-user packet
    36.
    发明授权
    Addressing for a multi-user packet 有权
    寻址多用户数据包

    公开(公告)号：US09264996B2

    公开(公告)日：2016-02-16

    申请号：US14154529

    申请日：2014-01-14

    Applicant: BROADCOM CORPORATION

    Inventor： Joonsuk Kim ,  Matthew James Fischer

    IPC: H04W52/02 ,  H04L1/00 ,  H04L29/06 ,  H04L5/00

    CPC classification number: H04W72/0466 ,  H04L1/0053 ,  H04L1/007 ,  H04L1/0071 ,  H04L1/0088 ,  H04L5/0023 ,  H04L5/0053 ,  H04L69/22 ,  H04W52/02 ,  H04W52/0219 ,  H04W52/0222 ,  H04W52/0229 ,  H04W72/042 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162

    Abstract: Preamble and header bit allocation for power savings within multiple user, multiple access, and/or MIMO wireless communications. Within a multi-user packet, information (e.g., partial address information) related to a recipient group of wireless communication devices (e.g., as few as one wireless communication device or any subset of a number of wireless communication devices, sometimes including all of the wireless communication devices) is emplaced within a PHY (e.g., physical layer) header of such a multi-user packet to be communicated within a multi-user (MU) environment. Such recipient indicating information can be encoded with relatively higher robustness (e.g., lower coding rates, lower ordered modulation, cyclic redundancy check (CRC), etc.) that remaining portions of the multi-user packet. Various portions of the remainder of the multi-user packet may respectively correspond to different wireless communication devices (e.g., a first field for a first wireless communication device, a second field for a second wireless communication device, etc.).

    Abstract translation: 前导码和头位分配用于在多用户，多路访问和/或MIMO无线通信中的功率节省。 在多用户分组中，与无线通信设备的接收者组（例如，少至一个无线通信设备或多个无线通信设备的任何子集）相关的信息（例如，部分地址信息）有时包括全部 无线通信设备）被放置在将在多用户（MU）环境内传送的这种多用户分组的PHY（例如，物理层）报头中。 这样的接收者指示信息可以用多个用户分组的剩余部分的相对较高的鲁棒性（例如较低的编码率，较低的有序调制，循环冗余校验（CRC）等）进行编码。 多用户分组的其余部分的各个部分可以分别对应于不同的无线通信设备（例如，第一无线通信设备的第一场，第二无线通信设备的第二场等）。

    Method and system for communicating feedback information in a multiple user multiple input multiple output (MU-MIMO) communication system
    37.
    发明申请
    Method and system for communicating feedback information in a multiple user multiple input multiple output (MU-MIMO) communication system 有权
    用于在多用户多输入多输出（MU-MIMO）通信系统中传送反馈信息的方法和系统

    公开(公告)号：US20130294533A1

    公开(公告)日：2013-11-07

    申请号：US13854342

    申请日：2013-04-01

    Applicant: BROADCOM CORPORATION

    Inventor： Joonsuk Kim ,  Sirikiat Lek Ariyavisitakul

    IPC: H04L5/02 ,  H04B7/04

    CPC classification number: H04L5/023 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0626

    Abstract: A method and system for communicating feedback information in a multiple user multiple input multiple output (MU-MIMO) communication system are presented. In one aspect of the method and system, a beamformer station may communicate a feedback information request to a plurality of beamformee stations. The feedback information request may request feedback data for a plurality of RF channel bands. The RF channel bands may form a multichannel. The beamformer may subsequently transmit a plurality of signals utilizing the RF channel bands within the multichannel. Each of the beamformees may receive the plurality of subsequently transmitted signals. A beamformee may generate the requested feedback data for each RF channel band within the multichannel. The beamformee may generate a beamforming report, which comprises the feedback data, which is generated across the plurality of RF channel bands in the multichannel. The beamformee may transmit the beamforming report to the beamformer.

    Abstract translation: 提出了一种用于在多用户多输入多输出（MU-MIMO）通信系统中传送反馈信息的方法和系统。 在该方法和系统的一个方面，波束形成器站可将反馈信息请求传送到多个波束形成站。 反馈信息请求可以请求多个RF信道频带的反馈数据。 RF信道频带可以形成多信道。 波束形成器随后可以利用多声道内的RF信道频带发送多个信号。 每个波束形成器可以接收多个随后发送的信号。 波束形成器可以为多通道内的每个RF信道频带生成所请求的反馈数据。 波束形成器可以生成波束形成报告，其包括在多声道中跨多个RF信道频带产生的反馈数据。 波束形成器可以将波束形成报告发送到波束形成器。

    METHOD AND SYSTEM FOR UTILIZING TONE GROUPING WITH GIVENS ROTATIONS TO REDUCE OVERHEAD ASSOCIATED WITH EXPLICIT FEEDBACK INFORMATION
    38.
    发明申请
    METHOD AND SYSTEM FOR UTILIZING TONE GROUPING WITH GIVENS ROTATIONS TO REDUCE OVERHEAD ASSOCIATED WITH EXPLICIT FEEDBACK INFORMATION 有权
    利用旋转旋转使用音调分组以减少与显式反馈信息相关联的超音速的方法和系统

    公开(公告)号：US20130089052A1

    公开(公告)日：2013-04-11

    申请号：US13689863

    申请日：2012-11-30

    Applicant: Broadcom Corporation

    Inventor： Joonsuk Kim

    IPC: H04B7/04

    CPC classification number: H04B7/0456 ,  H04B7/0417 ,  H04B7/043 ,  H04B7/0634 ,  H04B7/0639 ,  H04L27/2626 ,  H04L27/2647

    Abstract: Aspects of a method and system for utilizing tone grouping with Givens rotations to reduce overhead associated with explicit feedback information are presented. In one aspect of the invention, Givens matrices may be utilized to reduce a quantity of information communicated in explicit feedback information via an uplink RF channel. The explicit feedback information may include specifications for a feedback beamforming matrix that may be utilized when transmitting signals via a corresponding downlink RF channel. The feedback beamforming matrix may represent a rotated version of an un-rotated matrix. The Givens matrices may be utilized to apply one or more Givens rotations to un-rotated matrix. The rotated matrix may reduce the quantity of information communicated in the explicit feedback information. The quantity of information communicated in the explicit feedback information may be further reduced by utilizing tone grouping.

    Abstract translation: 提出了利用Givens旋转利用音调分组以减少与显式反馈信息相关的开销的方法和系统的方面。 在本发明的一个方面，可以利用Givens矩阵来经由上行链路RF信道来减少在显式反馈信息中传送的信息量。 显式反馈信息可以包括当经由相应的下行链路RF信道发送信号时可以使用的反馈波束成形矩阵的规范。 反馈波束形成矩阵可以表示未旋转矩阵的旋转版本。 Givens矩阵可以用于将一个或多个Givens旋转应用于未旋转的矩阵。 旋转的矩阵可以减少在显式反馈信息中传达的信息的数量。 可以通过利用音调分组来进一步减少在显式反馈信息中传送的信息量。

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