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：US09906278B2

公开(公告)日：2018-02-27

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: H04B7/00 ,  H04B7/0413 ,  H04W74/02 ,  H04L5/00 ,  H04W74/08 ,  H04L27/26 ,  H04W28/06 ,  H04W84/12 ,  H04W88/06

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).

公开(公告)号：US09831929B2

公开(公告)日：2017-11-28

申请号：US14821939

申请日：2015-08-10

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat ,  Matthew James Fischer ,  Eric J. Ojard

IPC: H04W4/00 ,  H04B7/0417 ,  H04B7/0456 ,  H04B7/04 ,  H04W88/02 ,  H04W88/08 ,  H04B7/06

CPC classification number: H04B7/0417 ,  H04B7/043 ,  H04B7/0456 ,  H04B7/0641 ,  H04B7/065 ,  H04B7/0658 ,  H04W88/02 ,  H04W88/08

Abstract: Differential feedback within multiple user, multiple access, and/or MIMO wireless communications. After full feedback signal(s) have been received by a communication device (e.g., one that is to be performing beamforming for use in subsequent signal transmission), differential feedback signal(s) are received. Those differential feedback signal(s) are employed to update the full feedback signal(s) thereby generating updated/modified full feedback signals. Over time, such updated/modified full feedback signals may subsequently be further updated based upon later received inferential feedback signal(s). Such differential feedback signaling takes advantage of time and/or frequency correlation in a communication channel to provide for reduced feedback overhead by feeding back a difference or delta (Δ) relative to a previous value. For example, instead of providing full feedback signals in each respective/successive communication, feedback overhead is reduced by providing a difference or delta (Δ).

公开(公告)号：US09813125B2

公开(公告)日：2017-11-07

申请号：US15220670

申请日：2016-07-27

Applicant: BROADCOM CORPORATION

Inventor： Peiman Amini ,  Matthew James Fischer

IPC: H04B7/00 ,  H04B7/0452 ,  H04W24/04 ,  H04L5/00 ,  H04L27/26 ,  H04L1/06 ,  H04L27/00 ,  H04W74/06 ,  H04W72/04

CPC classification number: H04B7/0452 ,  H04L1/0625 ,  H04L1/0631 ,  H04L5/0055 ,  H04L27/0002 ,  H04L27/2601 ,  H04W24/04 ,  H04W72/0413 ,  H04W72/0446 ,  H04W72/0453 ,  H04W74/06

Abstract: Acknowledgment and/or receiver recovery mechanisms for scheduled responses within multiple user, multiple access, and/or MIMO wireless communications. Explicit scheduling information is provided from a first wireless communication device (e.g., an access point (AP), a transmitting wireless communication device) to a number of other wireless communication devices (e.g., wireless stations (STAs), receiving wireless communication devices) directing those other wireless communication devices a manner by which responses (e.g., acknowledgments (ACKs), block acknowledgments (BACKs), training feedback frames, etc.) are to be provided to the first wireless communication device there from. Such direction may include the order, timing, cluster assignment, etc. by which each respective wireless communication device is to provide its respective response to the first wireless communication device. In the event of the first wireless communication device failing to receive at least one response from at least one of the other wireless communication devices, various communication medium recovery mechanisms may be performed.

公开(公告)号：US09729285B2

公开(公告)日：2017-08-08

申请号：US14302612

申请日：2014-06-12

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat ,  Matthew James Fischer ,  Nihar Jindal ,  Vinko Erceg

IPC: H04W4/00 ,  H04L5/00

CPC classification number: H04L5/003 ,  H04L5/0007 ,  H04L5/0053

Abstract: A communication device includes a processor configured to generate OFDMA packets using various OFDMA packet structures and to transmit such OFDMA packets, via a communication interface, to at least one other communication device. The processor is also configured to receive, interpret, and process such OFDMA packets. One example of an OFDMA packet includes common SIG for two or more other wireless communication devices modulated across all sub-carriers of the OFDMA packet. The common SIG is followed by first SIG and first data for a first other wireless communication device modulated across first subset of the sub-carriers of the OFDMA packet and is also followed by second SIG and second data for a second other wireless communication device modulated across second subset of the sub-carriers of the OFDMA packet. Another example of an OFDMA packet includes the common SIG followed directly by first data and second data modulated as described above.

公开(公告)号：US09723539B2

公开(公告)日：2017-08-01

申请号：US14840373

申请日：2015-08-31

Applicant: BROADCOM CORPORATION

Inventor： Chiu Ngok Eric Wong ,  Matthew James Fischer

IPC: H04Q11/00 ,  H04W40/24 ,  H04W40/04 ,  H04W40/12 ,  H04B7/155 ,  H04L12/26 ,  H04W88/04

CPC classification number: H04W40/246 ,  H04B7/15507 ,  H04L43/12 ,  H04W40/04 ,  H04W40/12 ,  H04W88/04 ,  Y02D70/1222 ,  Y02D70/144 ,  Y02D70/32 ,  Y02D70/34

Abstract: A relay wireless communication device is discovered using probe request. A source device that intends to transmit one or more frames to a destination device transmits the probe request to request a probe response from one or more potential relay devices. A relay device transmits a probe response to the source device when the relay device may operate to forward the one or more frames from the source device to the destination device. The relay device employs one or more considerations to determine its eligibility to serve as relay for the source and destination devices. The source device selects one of the potential relay devices based on their provided probe responses. The source device may select an optimal relay device based upon two or more received probe responses.

公开(公告)号：US09635647B2

公开(公告)日：2017-04-25

申请号：US14607360

申请日：2015-01-28

Applicant: BROADCOM CORPORATION

Inventor： Peiman Amini ,  Matthew James Fischer

IPC: H04W4/00 ,  H04W72/04 ,  H04L1/00

CPC classification number: H04W72/04 ,  H04L1/0015 ,  H04L1/0036

Abstract: Response frame modulation coding set (MCS) selection within single user, multiple user, multiple access, and/or MIMO wireless communications. With respect to any exchange between communication devices in which there is a response frame, a first frame (e.g., an eliciting frame) is a first transmitted from the eliciting communication device to the responding communication device, and a second frame (e.g., a response frame) is transmitted from the responding communication device to the eliciting communities device. Appropriate selection of MCS to be used within the response frame may be determined explicitly or implicitly. One or more parameters (e.g., a limit parameter, a reduction parameter, etc.) may be used to determine the MCS of the response frame. The MCS employed for a response frame may be selected from a basic MCS set that ensures all response frames from any responding communication device may be properly received by the eliciting communication device.

公开(公告)号：US09439219B2

公开(公告)日：2016-09-06

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: H04W4/00 ,  H04W74/04 ,  H04L12/413 ,  H04W74/00

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.

公开(公告)号：US20160183304A1

公开(公告)日：2016-06-23

申请号：US15054886

申请日：2016-02-26

Applicant: BROADCOM CORPORATION

Inventor： Matthew James Fischer ,  Ron Porat

IPC: H04W74/08 ,  H04W16/14 ,  H04B17/345 ,  H04B7/06 ,  H04W52/16 ,  H04B17/336

CPC classification number: H04W74/0816 ,  H04B7/0634 ,  H04B17/318 ,  H04B17/336 ,  H04B17/345 ,  H04J11/0026 ,  H04W16/14 ,  H04W52/16 ,  H04W52/245 ,  H04W52/50

Abstract: A wireless communication device (alternatively, device) includes a processing circuitry configured to support communications with other wireless communication device(s) and to generate and process signals for such communications. In some examples, the device includes a communication interface and a processing circuitry, among other possible circuitries, components, elements, etc. to support communications with other wireless communication device(s) and to generate and process signals for such communications. A device receives a request to send (RTS) from another device and replies with a clear to send (CTS) when the RTS includes a non-zero-valued network allocation vector (NAV) if one or more conditions make such a response permissible. The device processes other parameter(s) associated with other communications between other devices to determine if a CTS response is permissible even during the other communications between the other devices. If comparison of the other parameter(s) is/are favorably to certain condition(s), the device transmits the CTS.

Abstract translation: 无线通信设备（可选地，设备）包括被配置为支持与其他无线通信设备的通信并且生成和处理用于这种通信的信号的处理电路。 在一些示例中，设备包括通信接口和处理电路以及其他可能的电路，组件，元件等，以支持与其他无线通信设备的通信，并且生成和处理用于这种通信的信号。 如果一个或多个条件允许这样的响应，则当RTS包括非零值网络分配向量（NAV）时，设备从另一设备接收到发送（RTS）的请求并且用清除发送（CTS）进行回复。 该设备处理与其他设备之间的其他通信相关联的其他参数，以确定即使在其他设备之间的其他通信期间CTS响应是否允许。 如果其他参数的比较有利于某些条件，则设备发送CTS。

公开(公告)号：US09350430B2

公开(公告)日：2016-05-24

申请号：US14722957

申请日：2015-05-27

Applicant: BROADCOM CORPORATION

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

IPC: H04W4/00 ,  H04B7/04 ,  H04L1/06 ,  H04L25/02 ,  H04B7/06 ,  H04L1/00 ,  H04L5/00

CPC classification number: H04B7/0452 ,  H04B7/0417 ,  H04B7/0643 ,  H04L1/0065 ,  H04L1/0068 ,  H04L1/0631 ,  H04L5/0023 ,  H04L25/0204 ,  H04L25/0226

Abstract: Multi-user null data packet (MU-NDP) sounding within multiple user, multiple access, and/or MIMO wireless communications. Within communication systems including multiple wireless communication devices (e.g., one or more APs, STAs, etc.), channel sounding of the selected communication links between the various wireless communication devices is performed. A MU-NDP announcement frame is transmitted to and received by various wireless communication devices indicating which of those wireless communication devices (e.g., one, some, or all) are being sounded. Then, respective NDP sounding frames are transmitted via the communication links corresponding to those wireless communication devices (e.g., one, some, or all) are being sounded, and sounding feedback signals are subsequently sent back to the original transmitting wireless communication device. In some instances, after transmission of the MU-NDP announcement frame, a clear to send (CTS) is sent from at least one of the wireless communication devices thereby precipitating the transmission of the NDP sounding frames.