公开(公告)号：US09337986B2

公开(公告)日：2016-05-10

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: H04W74/04 ,  H04L5/00 ,  H04L25/02 ,  H04L25/03

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.

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）。

公开(公告)号：US20160028639A1

公开(公告)日：2016-01-28

申请号：US14874624

申请日：2015-10-05

Applicant: BROADCOM CORPORATION

Inventor： Chiu Ngok Eric Wong ,  Matthew James Fischer

IPC: H04L12/835 ,  H04W28/02

CPC classification number: H04L47/30 ,  H04W28/02 ,  H04W28/0289 ,  H04W88/02 ,  H04W88/08

Abstract: A relay wireless communication device is implemented to perform buffer management and coordination with a source wireless communication device. A relay wireless communication device (generally, a relay) informs a source wireless communication device (source) of the status of memory therein to store messages intended for a destination wireless communication device (destination). For example, the source transmits information to the relay, which buffers information before forwarding it on to the destination. This buffering may be a function of the source having additional information intended for the relay and/or destination. The relay performs appropriate signaling, such as suspend transmission requests and resume transmission requests, to inform other devices in the system of its memory storage status (e.g., such as when having an actual or anticipated overflow). In one implementation, a suspend transmission request may be implemented by setting a particular bit within a communication from the relay to the source.

公开(公告)号：US09131428B2

公开(公告)日：2015-09-08

申请号：US13958784

申请日：2013-08-05

Applicant: BROADCOM CORPORATION

Inventor： Chiu Ngok Eric Wong ,  Matthew James Fischer

IPC: H04Q11/00 ,  H04W40/04 ,  H04W40/24 ,  H04W40/12

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：US09112688B2

公开(公告)日：2015-08-18

申请号：US13930458

申请日：2013-06-28

Applicant: BROADCOM CORPORATION

Inventor： Chiu Ngok Eric Wong ,  Matthew James Fischer

IPC: H04J3/24 ,  H04L1/18 ,  H04W84/04 ,  H04W74/00

CPC classification number: H04B7/14 ,  H04L1/0003 ,  H04L1/0079 ,  H04L1/1657 ,  H04L1/18 ,  H04L1/1829 ,  H04L1/1864 ,  H04L2001/0097 ,  H04W74/002 ,  H04W84/047 ,  H04W88/02 ,  H04W88/08

Abstract: A relay receives a frame from a source, and based on state of a relayed frame bit within the frame, the relay selects an operational mode: implicit acknowledgement mode, first explicit acknowledgement mode, or second explicit acknowledgement mode. The relay sets the relayed frame bit in subsequent transmissions to indicate transmission opportunity (TXOP) control of the communication medium (e.g., whether under control of the relay or the source). The source may receive acknowledgement of the relay's successful receipt of the frame implicitly via the relay transmitting a relayed frame to the destination. Alternatively, the source may receive acknowledgement of the relay's successful receipt of the frame explicitly in a response frame from the relay. State of a more data bit in the frame receive from the source may indicate the source has one or more additional frames intended for the destination.

Abstract translation: 继电器从源接收帧，并且基于帧内的中继帧位的状态，中继选择操作模式：隐式确认模式，第一显式确认模式或第二显式确认模式。 继电器在随后的传输中设置中继的帧位，以指示通信介质的传输机会（TXOP）控制（例如，是否在继电器或源的控制下）。 源可以通过中继向传送中继帧到目的地隐含地接收到继电器成功接收到帧的确认。 或者，源可以接收来自中继器的响应帧中的继电器成功接收帧的确认。 从源接收的帧中的更多数据位的状态可以指示源具有用于目的地的一个或多个附加帧。

公开(公告)号：US08971304B2

公开(公告)日：2015-03-03

申请号：US13690907

申请日：2012-11-30

Applicant: Broadcom Corporation

Inventor： Rajendra Tushar Moorti ,  Matthew James Fischer ,  George Kondylis

IPC: G08C15/00 ,  H04L5/14 ,  H04W72/04 ,  H04W28/06 ,  H04W28/18

CPC classification number: H04W72/04 ,  H04W28/06 ,  H04W28/18

Abstract: Providing wireless transmission, where in a first transmission mode, transmitting a plurality of frames using a first interframe spacing interval. When in a second transmission mode, transmitting the plurality of frames using a second interframe spacing interval, wherein the second interframe spacing is less than the first interframe spacing.

Abstract translation: 提供无线传输，其中在第一传输模式中，使用第一帧间间隔发送多个帧。 当处于第二传输模式时，使用第二帧间间隔发送多个帧，其中第二帧间间隔小于第一帧间间隔。

公开(公告)号：US20150043549A1

公开(公告)日：2015-02-12

申请号：US14522646

申请日：2014-10-24

Applicant: BROADCOM CORPORATION

Inventor： Matthew James Fischer

IPC: H04W74/08

CPC classification number: H04W74/0816 ,  H04L5/0007 ,  H04L27/2601 ,  H04L27/38 ,  H04W52/0219 ,  H04W52/0229 ,  H04W56/0015 ,  H04W72/06 ,  H04W72/12 ,  Y02D70/1224 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162

Abstract: One or multiple bit restricted access window (RAW) end point determination within for single user, multiple user, multiple access, and/or MIMO wireless communications. A RAW is defined in which only devices of the particular class (e.g., low power class, Z class, smart meter station (SMSTA) class, etc.) are allowed access to the communication medium. Indication of the end of such a RAW may be included within one or more bits set within a signal field (SIG) field of a framer packet generated by a given device within the system and transmitted to one or more other devices. After completion of the RAW, other respective devices of at least one other type of class may be provided access to the communication medium. The manner of access to the communication media outside of the RAW may be varied (e.g., scheduled, based on carrier sense multiple access/collision avoidance (CSMA/CA), etc.).

Abstract translation: 针对单用户，多用户，多访问和/或MIMO无线通信的一个或多个限位访问窗口（RAW）终点确定。 定义了RAW，其中仅允许特定类的设备（例如，低功率等级，Z类，智能电表（SMSTA）类等）访问通信介质。 这样的RAW的结束的指示可以被包括在由系统内的给定设备生成的发送到一个或多个其他设备的成帧器分组的信号字段（SIG）字段内设置的一个或多个位内。 在RAW完成之后，可以提供对至少另一类别的其他类型的设备对通信介质的访问。 可以改变对RAW之外的通信介质的访问方式（例如，基于载波侦听多路访问/冲突避免（CSMA / CA）等进行调度）。

公开(公告)号：US20140307653A1

公开(公告)日：2014-10-16

申请号：US14252646

申请日：2014-04-14

Applicant: BROADCOM CORPORATION

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

IPC: H04W72/04 ,  H04B7/26

CPC classification number: H04B7/2612 ,  H04W74/006

Abstract: A wireless communication device is implemented to include a communication interface and a processor. The processor is configured to process communications associated with the other wireless communication devices within the wireless communication system to determine one or more traffic characteristics of those communications as well as one or more class characteristics of the other wireless communication devices. The processor is configured to classify the communications into one or more access categories based on the one or more traffic characteristics and is configured to classify the other devices into one or more device class categories based on the one or more class characteristics. The processor is then configured to generate one or more channel access control signals based on these classifications. The communication interface of the device is configured to transmit the one or more channel access control signals to one or more of the other devices.

Abstract translation: 无线通信设备被实现为包括通信接口和处理器。 处理器被配置为处理与无线通信系统内的其他无线通信设备相关联的通信，以确定那些通信的一个或多个业务特性以及其它无线通信设备的一个或多个类别特性。 处理器被配置为基于一个或多个业务特性将通信分类为一个或多个访问类别，并且被配置为基于一个或多个类特征将其他设备分类为一个或多个设备类别类别。 然后，处理器被配置为基于这些分类生成一个或多个信道访问控制信号。 设备的通信接口被配置为将一个或多个信道访问控制信号发送到一个或多个其他设备。

公开(公告)号：US20140185473A1

公开(公告)日：2014-07-03

申请号：US13930813

申请日：2013-06-28

Applicant: Broadcom Corporation

Inventor： Chiu Ngok Eric Wong ,  Matthew James Fischer

IPC: H04W72/12

CPC classification number: H04W72/0446 ,  H04W72/0473 ,  H04W72/1205 ,  H04W74/0808 ,  H04W84/18

Abstract: A signaling protocol allows for speed frame exchange between different wireless communication devices within single user, multiple user, multiple access, and/or MIMO wireless communication system. A listening wireless communication device analyzes state of speed frame indicator bits within frames transmitted from a first other wireless communication device to determine the entire radio frame exchanges between that first other wireless communication device and a second other wireless communication device. The second other wireless communication device may be a hidden node relative to the listening wireless communication device such that all or less than all transmissions from the hidden node are received by the listening device. The listening wireless communication device determines the status of the communication medium (e.g., the air in the context of a wireless communication system), so that it can transmit successfully without interfering with any ongoing communications between the first and second other wireless communication devices.

Abstract translation: 信令协议允许在单用户，多用户，多接入和/或MIMO无线通信系统内的不同无线通信设备之间进行速度帧交换。 监听无线通信设备分析从第一其他无线通信设备发送的帧内的速度帧指示符位的状态，以确定该第一其他无线通信设备和第二另一无线通信设备之间的整个无线电帧交换。 第二另外的无线通信设备可以是相对于监听无线通信设备的隐藏节点，使得来自隐藏节点的全部或者少于所有传输被听音设备接收。 监听无线通信设备确定通信介质的状态（例如，无线通信系统的上下文中的空气），使得其可以成功发送，而不干扰第一和第二其他无线通信设备之间的任何正在进行的通信。

公开(公告)号：US20140119271A1

公开(公告)日：2014-05-01

申请号：US13930458

申请日：2013-06-28

Applicant: BROADCOM CORPORATION

Inventor： Chiu Ngok Eric Wong ,  Matthew James Fischer

IPC: H04W16/26

CPC classification number: H04B7/14 ,  H04L1/0003 ,  H04L1/0079 ,  H04L1/1657 ,  H04L1/18 ,  H04L1/1829 ,  H04L1/1864 ,  H04L2001/0097 ,  H04W74/002 ,  H04W84/047 ,  H04W88/02 ,  H04W88/08

Abstract: A relay receives a frame from a source, and based on state of a relayed frame bit within the frame, the relay selects an operational mode: implicit acknowledgement mode, first explicit acknowledgement mode, or second explicit acknowledgement mode. The relay sets the relayed frame bit in subsequent transmissions to indicate transmission opportunity (TXOP) control of the communication medium (e.g., whether under control of the relay or the source). The source may receive acknowledgement of the relay's successful receipt of the frame implicitly via the relay transmitting a relayed frame to the destination. Alternatively, the source may receive acknowledgement of the relay's successful receipt of the frame explicitly in a response frame from the relay. State of a more data bit in the frame receive from the source may indicate the source has one or more additional frames intended for the destination.

Abstract translation: 继电器从源接收帧，并且基于帧内的中继帧位的状态，中继选择操作模式：隐式确认模式，第一显式确认模式或第二显式确认模式。 继电器在随后的传输中设置中继的帧位，以指示通信介质的传输机会（TXOP）控制（例如，是否在继电器或源的控制下）。 源可以通过中继向传送中继帧到目的地隐含地接收到继电器成功接收到帧的确认。 或者，源可以接收来自中继器的响应帧中的继电器成功接收帧的确认。 从源接收的帧中的更多数据位的状态可以指示源具有用于目的地的一个或多个附加帧。