公开(公告)号：US20140286203A1

公开(公告)日：2014-09-25

申请号：US14192228

申请日：2014-02-27

Applicant: BROADCOM CORPORATION

Inventor： Nihar Jindal ,  Yong Liu ,  Matthew James Fischer ,  Ron Porat ,  Chiu Ngok Eric Wong ,  Vinko Erceg

IPC: H04L5/14

CPC classification number: H04J11/0026 ,  H04W16/14 ,  H04W52/16

Abstract: A wireless communication device includes communication interface configured to receive and transmit signals and a processor configured to generate and process such signals. The communication interface of the wireless communication device is configured to receive a first signal from a first other wireless communication device, and the processor of the wireless communication device is configured to process the first signal to determine one or more concurrent transmission parameters. The processor of the wireless communication device is configured to generate the second signal based on the one or more concurrent transmission parameters and direct the communication interface to transmit the second signal to a second other wireless communication device during receipt of the first signal from the first other wireless communication device. The wireless communication device may be configured to make such concurrent transmissions based on one or more considerations such as the power level of the first signal.

Abstract translation: 无线通信设备包括被配置为接收和发送信号的通信接口以及被配置为生成和处理这些信号的处理器。 无线通信设备的通信接口被配置为从第一其他无线通信设备接收第一信号，并且无线通信设备的处理器被配置为处理第一信号以确定一个或多个并发传输参数。 无线通信设备的处理器被配置为基于一个或多个并发传输参数产生第二信号，并且在第一个信号从第一个接收到第一个信号的接收期间指示通信接口将第二信号发送到第二个其他无线通信设备 无线通信设备。 无线通信设备可以被配置为基于诸如第一信号的功率电平的一个或多个考虑来进行这种并发传输。

公开(公告)号：US08817825B2

公开(公告)日：2014-08-26

申请号：US13784340

申请日：2013-03-04

Applicant: Broadcom Corporation

Inventor： Mark Kent ,  Vinko Erceg ,  Uri Landau ,  Pieter Van Rooyen

IPC: H04J3/04 ,  H04B7/216 ,  H04B1/10 ,  H04B1/00 ,  H04B7/08

CPC classification number: H04B7/0413 ,  H04B7/0842

Abstract: Methods and systems for processing signals in a receiver are disclosed herein and may comprise receiving spatially multiplexed signals via M receive antennas. A plurality of multiple data streams may be separated in the received spatially multiplexed signals to detect MIMO data streams. Each of the MIMO data streams may correspond to a spatially multiplexed input signal. Complex phase and/or amplitude may be estimated for each detected MIMO data streams utilizing (M-1) phase shifters. Complex waveforms, comprising in-phase (I) and quadrature (Q) components for the MIMO data streams within the received spatially multiplexed signals may be processed and the processed complex waveforms may be filtered to generate baseband bandwidth limited signals. Phase and/or amplitude for one or more received spatially multiplexed signals may be adjusted utilizing the estimated complex phase and amplitude. Phase and/or amplitude may be adjusted continuously and/or at discrete intervals.

Abstract translation: 在本文中公开了用于处理接收机中的信号的方法和系统，并且可以包括通过M个接收天线接收空间复用的信号。 多个多个数据流可以在接收的空间复用信号中分离以检测MIMO数据流。 每个MIMO数据流可以对应于空间复用的输入信号。 可以使用（M-1）移相器针对每个检测到的MIMO数据流来估计复相和/或振幅。 可以对接收的空间复用信号内的MIMO数据流的同相（I）和正交（Q）分量的复杂波形进行处理，并且处理的复杂波形可被滤波以产生基带带宽限制信号。 可以使用估计的复相位和幅度来调整一个或多个接收的空间复用信号的相位和/或幅度。 相位和/或幅度可以连续和/或以离散间隔进行调整。

公开(公告)号：US20140078966A1

公开(公告)日：2014-03-20

申请号：US14089939

申请日：2013-11-26

Applicant: BROADCOM CORPORATION

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

IPC: H04W28/06

CPC classification number: H04B7/0684 ,  H04B7/043 ,  H04B7/0452 ,  H04B7/0669 ,  H04B7/0697 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0025 ,  H04L1/0075 ,  H04L1/0079 ,  H04L1/06 ,  H04L5/0023 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0053 ,  H04L69/22 ,  H04W28/06 ,  H04W28/065 ,  H04W84/12

Abstract: Distributed signal field for communications within multiple user, multiple access, and/or MIMO wireless communications. In accordance with wireless communications, a signal (SIG) field employed within such packets is distributed or partitioned into at least two separate signal fields (e.g., SIG A and SIG B) that are located in different portions of the packet. A first of the SIG fields includes information that may be processed and decoded by all wireless communication devices, and a second of the SIG fields includes information that is specific to one or more particular wireless communication devices (e.g., a specific wireless communication device or a specific subset of the wireless communication devices). The precise locations of the at least first and second SIG fields within a packet may be varied, including placing a second of the SIG fields (e.g., including user-specific information) adjacent to and preceding a data field in the packet.

Abstract translation: 用于多用户，多路访问和/或MIMO无线通信中的通信的分布式信号场。 根据无线通信，在这样的分组中采用的信号（SIG）字段被分配或划分为位于分组的不同部分中的至少两个分离的信号字段（例如，SIG A和SIG B）。 SIG字段中的第一个包括可被所有无线通信设备处理和解码的信息，并且第二个SIG字段包括特定于一个或多个特定无线通信设备（例如，特定的无线通信设备或 无线通信设备的特定子集）。 分组中的至少第一和第二SIG字段的精确位置可以是变化的，包括在数据包中邻近并在数据字段之前放置第二个SIG字段（例如，包括用户特定信息）。

公开(公告)号：US08670510B2

公开(公告)日：2014-03-11

申请号：US13858391

申请日：2013-04-08

Applicant: Broadcom Corporation

Inventor： Mark Kent ,  Vinko Erceg ,  Uri M. Landau ,  Pieter van Rooyen

IPC: H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04 ,  H04B1/10 ,  H04L1/00 ,  H04L25/08

CPC classification number: H04L25/0204 ,  H04B1/712

Abstract: Aspects of a method and system for channel estimation in a MIMO communication system with multiple RF chains for WCDMA/HSDPA may comprise receiving a plurality of communication signals from a plurality of transmit antennas. A plurality of vectors of baseband combined channel estimates may be generated based on phase rotation of the received plurality of communication signals. A matrix of processed baseband combined channel estimates may be generated based on the generated plurality of vectors of baseband combined channel estimates. A plurality of amplitude and phase correction signals may be generated based on the generated plurality of vectors of baseband combined channel estimates. An amplitude and a phase of at least a portion of the received plurality of communication signals may be adjusted based on the generated plurality of amplitude and phase correction signals, respectively.

Abstract translation: 在具有用于WCDMA / HSDPA的多个RF链的MIMO通信系统中用于信道估计的方法和系统的方面可以包括从多个发射天线接收多个通信信号。 可以基于所接收的多个通信信号的相位旋转来生成基带组合信道估计的多个向量。 可以基于所生成的多个基带组合信道估计向量来生成经处理的基带组合信道估计的矩阵。 可以基于生成的基带组合信道估计的多个矢量来生成多个幅度和相位校正信号。 可以基于所生成的多个幅度和相位校正信号来调整所接收的多个通信信号的至少一部分的振幅和相位。

公开(公告)号：US20140050211A1

公开(公告)日：2014-02-20

申请号：US14067009

申请日：2013-10-30

Applicant: BROADCOM CORPORATION

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

IPC: H04B7/06

CPC classification number: H04B7/063 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0626 ,  H04B7/0634 ,  H04B7/0645 ,  H04B7/0669 ,  H04L1/0687 ,  H04W4/00

Abstract: Beamforming feedback frame formats within multiple user, multiple access, and/or MIMO wireless communications. A transmitting wireless communication device (TX) transmits a sounding frame to one or more receiving wireless communication devices (RXs) using one or more antennae and one or more clusters. Any antenna/cluster combination may be employed in communications between TXs and RXs. The one or more RXs receive/process the sounding frame to determine a type of beamforming feedback frame to be provided to the TX. Any one of a variety of beamforming feedback frame types and a types of information may be contained within a respective beamforming feedback frame including various characteristics of the respective communication channel between the TX and each of the various RXs. A common beamforming feedback frame format may be supported and employed by all such wireless communication devices (e.g., TX and RXs) when performing MU-MIMO operation such as in accordance with IEEE 802.11ac/VHT.

Abstract translation: 在多用户，多路访问和/或MIMO无线通信范围内成像反馈帧格式。 发射无线通信设备（TX）使用一个或多个天线和一个或多个簇向一个或多个接收无线通信设备（RX）发送探测帧。 在TX和RX之间的通信中可以采用任何天线/群集组合。 一个或多个RX接收/处理探测帧以确定要提供给TX的波束形成反馈帧的类型。 各种波束形成反馈帧类型和信息类型中的任何一种可以包含在相应的波束形成反馈帧内，包括TX与各个RX之间的各个通信信道的各种特性。 当执行诸如根据IEEE 802.11ac / VHT的MU-MIMO操作时，所有这样的无线通信设备（例如，TX和RX）可以支持和采用公共波束形成反馈帧格式。

公开(公告)号：US20140029543A1

公开(公告)日：2014-01-30

申请号：US14039712

申请日：2013-09-27

Applicant: BROADCOM CORPORATION

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

IPC: H04L5/00

CPC classification number: H04L5/0058 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/006 ,  H04L5/0064 ,  H04L25/0224 ,  H04L25/03343 ,  H04L2025/03802 ,  H04W74/04

Abstract: Scheduled clear to send (CTS) for multiple user, multiple access, and/or MIMO wireless communications. Before sending transmissions, a request to send (RTS)/clear to send (CTS) exchange takes place between a transmitting wireless communication device and multiple receiving wireless communication devices may take place therein. The transmitting wireless communication device (e.g., an AP) may generate and transmit a multi-user request to send (mRTS) frame to a number of receiving wireless communication devices (e.g., STAs). The mRTS frame can include information and instructions therein to direct the manner by which all or a subset of the receiving wireless communication devices are to provide CTS responses back to the transmitting wireless communication device. The mRTS frame may be an OFDMA frame, a MU-MIMO frame, or a combination thereof. The CTS responses may be received in accordance with any one or combination of OFDM signaling, OFDMA signaling, and MU-MIMO signaling.

Abstract translation: 为多个用户，多路访问和/或MIMO无线通信计划明确发送（CTS）。 在发送传输之前，可以在发送无线通信设备和多个接收无线通信设备之间进行发送（RTS）/清除发送（CTS）交换的请求。 发射无线通信设备（例如，AP）可以生成并向多个接收无线通信设备（例如，STA）发送（mRTS）帧的多用户请求。 mRTS帧可以包括其中的信息和指令，以指导接收无线通信设备的全部或一部分子集将CTS响应提供给发送无线通信设备的方式。 mRTS帧可以是OFDMA帧，MU-MIMO帧或其组合。 可以根据OFDM信令，OFDMA信令和MU-MIMO信令的任何一个或组合来接收CTS响应。

公开(公告)号：US08626100B2

公开(公告)日：2014-01-07

申请号：US13860257

申请日：2013-04-10

Applicant: Broadcom Corporation

Inventor： John Walley ,  Jeyhan Karaoguz ,  Brima B. Ibrahim ,  Arya Reza Behzad ,  Vinko Erceg ,  David Rosmann

IPC: H04B1/06 ,  H04B7/00

CPC classification number: H04B1/1638 ,  H04B1/005

Abstract: A transceiver includes a receiver section and a transmitter section. The receiver section converts an inbound Multiple Frequency Bands Multiple Standards (MFBMS) signal into a down converted signal, wherein the inbound MFBMS signal includes a desired signal component and an undesired signal component. In addition, the receiver section determines spectral positioning of the undesired signal component with respect to the desired signal component and adjusts at least one of the MFBMS signal and the down converted signal based on the spectral positioning to substantially reduce adverse affects of the undesired signal component on the desired signal component to produce an adjusted signal. The transmitter section converts an outbound symbol stream into an outbound MFBMS signal.

Abstract translation: 收发机包括接收机部分和发射机部分。 接收机部分将入站多频带多标准（MFBMS）信号转换为下变频信号，其中入站MFBMS信号包括期望的信号分量和不期望的信号分量。 此外，接收机部分确定相对于期望信号分量的不期望信号分量的频谱定位，并且基于频谱定位来调整MFBMS信号和下变频信号中的至少一个，以基本上减少不期望信号分量的不利影响 在所需的信号分量上产生经调整的信号。 发送器部分将出站符号流转换为出站MFBMS信号。

公开(公告)号：US20130336215A1

公开(公告)日：2013-12-19

申请号：US13955070

申请日：2013-07-31

Applicant: Broadcom Corporation

Inventor： Joonsuk Kim ,  Ron Porat ,  Vinko Erceg

IPC: H04B7/04

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.

Abstract translation: 单用户，多用户，多路访问和/或MIMO无线通信中的显式反馈格式。 波束形成器向波束形成器提供第一通信，并且基于此，波束形成器可以确定通过从波束形成器到波束形成器的第二通信来提供给波束形成器的反馈的类型和格式相关联的某些特性。 例如，第一通信可以包括当前操作模式的指示，诸如它是否符合单用户多输入多输出（SU-MIMO）或多用户多输入多输出（MU-MIMO ）。 此外，第一通信可以指示要根据波束形成器的后续波束成形采用的所请求的导向矩阵的等级。 此外，附加信息，例如关于每个相应时空流，每音调或每个子带本征值的每个音调SNR值，使用特定信道宽度的附加信息（例如，20,40,80， 或160MHz）等可以包括在第二通信内。

公开(公告)号：US20130265965A1

公开(公告)日：2013-10-10

申请号：US13893298

申请日：2013-05-13

Applicant: Broadcom Corporation

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

IPC: H04W74/04

CPC classification number: H04W74/04 ,  H04L12/413 ,  H04W74/002

Abstract: A multi-user super-frame (MU-SF), as controlled by a MU-SF owner, is used to govern the manner by which various wireless communication devices have access to the communication medium. When various wireless communication devices operate within a wireless communication system, communication medium access can be handled differently for wireless communication devices having different capabilities. Per the MU-SF, those having a first capability may get medium access in accordance with a first operational mode (e.g., carrier sense multiple access/collision avoidance (CSMA/CA)), while those having a second capability may get medium access in accordance with a second operational mode (e.g., scheduled access). The respective durations for each of the first operational mode and the second operational mode within various MU-SFs need not be the same; the respective durations thereof may be adaptively modified based on any number considerations.

Abstract translation: 由MU-SF所有者控制的多用户超帧（MU-SF）用于控制各种无线通信设备可以访问通信介质的方式。 当各种无线通信设备在无线通信系统内工作时，可以对具有不同能力的无线通信设备对不同的通信介质访问进行处理。 根据MU-SF，具有第一能力的那些可以根据第一操作模式（例如，载波侦听多路访问/冲突避免（CSMA / CA））获得媒体访问，而具有第二能力的那些可以获得媒体访问 根据第二操作模式（例如，预定访问）。 各种MU-SF中的第一操作模式和第二操作模式中的每个的相应持续时间不必相同; 可以基于任何数量考虑来自适应地修改其各自的持续时间。

公开(公告)号：US20130223573A1

公开(公告)日：2013-08-29

申请号：US13853515

申请日：2013-03-29

Applicant: BROADCOM CORPORATION

Inventor： John Walley ,  David Rosmann ,  Brima B. Ibrahim ,  Arya Reza Behzad ,  Jeyhan Karaoguz ,  Vinko Erceg

IPC: H04L27/00

CPC classification number: H04L27/0002 ,  H04B1/0003 ,  H04B1/005

Abstract: A wireless device includes processing circuitry, a receiver section, a transmitter section, and an antenna. The processing circuitry determines a set of information signals of a RF Multiple Frequency Bands Multiple Standards (MFBMS) signal. The receiver section down-converts a portion of the RF MFBMS signal by one or more respective shift frequencies to produce a corresponding baseband/low Intermediate Frequency (BB/IF) information signal from which the processing circuitry extracts data. The transmitter section converts a respective BB/IF information signal received from the processing circuitry by a respective shift frequency to produce a corresponding RF information signal and a combiner that combines the RF information signals to form a RF MFBMS signal. The receiver section and the transmitter section include ADCs and/or DACs, respectively, that are adjustable based upon characteristics of the RF MFBMS signal, the BB/IF MFBMS signal, and/or based upon signals carried therein, e.g., modulation type, SNR requirements, etc.

Abstract translation: 无线设备包括处理电路，接收机部分，发射机部分和天线。 处理电路确定RF多频带多标准（MFBMS）信号的一组信息信号。 接收器部分将RF MFBMS信号的一部分下变频一个或多个相应的移位频率，以产生相应的基带/低中频（BB / IF）信息信号，处理电路从该信号信号中提取数据。 发射机部分将从处理电路接收到的相应BB / IF信息信号转换相应的移位频率，以产生对应的RF信息信号和组合RF信号信号以形成RF MFBMS信号的组合器。 接收机部分和发射机部分分别包括基于RF MFBMS信号，BB / IF MFBMS信号的特性和/或基于其中携带的信号可调节的ADC和/或DAC，例如调制类型，SNR 要求等