公开(公告)号：US09774378B2

公开(公告)日：2017-09-26

申请号：US14948604

申请日：2015-11-23

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat

IPC: H04L27/26 ,  H04B7/06 ,  H04W88/08 ,  H04L5/00

CPC classification number: H04B7/06 ,  H04B7/0617 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/2613 ,  H04W88/08

Abstract: A wireless communication device (alternatively, device) includes a processor 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 processor, 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. The device is configured to generate OFDM/A packets having certain characteristics based on different packet formats. For example, a first OFDM/A packet has first characteristic(s) based on a first packet format, a second OFDM/A packet has second characteristic(s) based on a second packet format, and so on. A receiver device is configured to process such OFDM/A packets to determine characteristic(s) thereof to determine, identify, classify, etc. their respective packet formats so that the OFDM/A packets can be properly and appropriately processed based on their particular packet formats.

公开(公告)号：US20160380729A1

公开(公告)日：2016-12-29

申请号：US15261513

申请日：2016-09-09

Applicant: Broadcom Corporation

Inventor： Ron Porat ,  Sriram Venkateswaran

IPC: H04L5/00 ,  H04B7/06 ,  H04W72/04

CPC classification number: H04L5/001 ,  H04B7/0408 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0636 ,  H04L5/0007 ,  H04L5/0041 ,  H04L5/0048 ,  H04L12/2854 ,  H04L12/4604 ,  H04L27/261 ,  H04W72/0453

Abstract: A wireless communication device (alternatively, device, WDEV, etc.) includes at least one processing circuitry configured to support communications with other WDEV(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 WDEV(s) and to generate and process signals for such communications. The WDEV receives a null data packet (NDP) announcement frame that specifies a sub-carrier (SC) or tone grouping factor, a communication channel bandwidth, and other WDEV(s) to respond with beamforming feedback. The WDEV process the NDP announcement frame to determine it is to respond, and if so, then receives a NDP sounding frame that includes long training fields (LTFs) and pilots at predetermined locations and generates beamforming feedback of communication channel estimates at SCs as determined based on a sub-carrier roster look up table (LUT).

Abstract translation: 无线通信设备（备选地，设备，WDEV等）包括至少一个处理电路，其被配置为支持与其他WDEV的通信，并且生成和处理用于这种通信的信号。 在一些示例中，该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WDEV的通信，并且生成和处理用于这种通信的信号。 WDEV接收指定子载波（SC）或音调分组因子，通信信道带宽和其他WDEV以响应波束成形反馈的空数据分组（NDP）通知帧。 WDEV处理NDP通知帧以确定其是否响应，并且如果是，则在预定位置处接收包括长训练场（LTF）和导频的NDP探测帧，并且基于所确定的在SC上生成通信信道估计的波束成形反馈 在子载波上查找表（LUT）。

公开(公告)号：US20160359595A1

公开(公告)日：2016-12-08

申请号：US15142431

申请日：2016-04-29

Applicant: BROADCOM CORPORATION

Inventor： Leo Montreuil ,  Ron Porat

IPC: H04L5/00 ,  H04B7/04 ,  H04L27/26

CPC classification number: H04L5/0041 ,  H04B7/0408 ,  H04B7/0452 ,  H04L5/0007 ,  H04L5/0048 ,  H04L12/2854 ,  H04L12/4604 ,  H04L27/2602 ,  H04L27/261

Abstract: A wireless communication device (alternatively, device, WDEV, etc.) includes a processing circuitry configured to support communications with other WDEV(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 WDEV(s) and to generate and process signals for such communications. A WDEV generates an orthogonal frequency division multiple access (OFDMA) frame that includes OFDMA symbol(s) that include a set of pilots based on an OFDMA sub-carrier plan. The WDEV transmits the OFDMA frame to other WDEV(s) for use by the other WDEV(s) to perform estimation of communication pathway(s) between the WDEV and the other WDEV(s) using the set of pilots. The OFDMA sub-carrier plan includes multiple OFDMA sub-carrier sub-plans of different sized RUs including pilots.

Abstract translation: 无线通信设备（可选地，设备，WDEV等）包括被配置为支持与其他WDEV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，该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WDEV的通信，并且生成和处理用于这种通信的信号。 WDEV产生包括基于OFDMA子载波计划的包括一组导频的OFDMA符号的正交频分多址（OFDMA）帧。 WDEV将OFDMA帧发送到其他WDEV以供其他WDEV使用，以使用该组导频对WDEV和其他WDEV之间的通信路径进行估计。 OFDMA子载波计划包括包括导频的不同大小的RU的多个OFDMA子载波子计划。

公开(公告)号：US20160211941A1

公开(公告)日：2016-07-21

申请号：US14979885

申请日：2015-12-28

Applicant: BROADCOM CORPORATION

Inventor： Ba-Zhong Shen ,  Matthias Korb ,  Andrew John Blanksby ,  Ron Porat

IPC: H04L1/00 ,  H03M13/00 ,  H03M13/11

CPC classification number: H04L1/0041 ,  H03M13/036 ,  H03M13/1137 ,  H03M13/116 ,  H03M13/1185 ,  H03M13/618 ,  H03M13/6362 ,  H04L1/0057 ,  H04L1/0069

Abstract: A communication device (alternatively, device) includes a processor configured to support communications with other communication device(s) and to generate and process signals for such communications. In some examples, the device includes a communication interface and a processor, among other possible circuitries, components, elements, etc. to support communications with other communication device(s) and to generate and process signals for such communications. In some examples, a device encodes information using a low density parity check (LDPC) code to generate an LDPC coded signal and transmits the LDPC coded signal to another communication device. in other examples, a device receives an LDPC coded signal from another communication device and decodes the LDPC coded signal using an LDPC matrix. The LDPC matrix includes a left hand side matrix and a right hand side matrix (e.g., having CSI (Cyclic Shifted Identity) sub-matrices on a main diagonal and another diagonal adjacently located to the main diagonal).

Abstract translation: 通信设备（可选地，设备）包括被配置为支持与其他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器。 在一些示例中，设备包括通信接口和处理器以及其他可能的电路，组件，元件等，以支持与其他通信设备的通信，并且生成和处理用于这种通信的信号。 在一些示例中，设备使用低密度奇偶校验（LDPC）码对信息进行编码，以生成LDPC编码信号，并将LDPC编码信号发送到另一通信设备。 在其他示例中，设备从另一通信设备接收LDPC编码信号，并使用LDPC矩阵对LDPC编码信号进行解码。 LDPC矩阵包括左手侧矩阵和右手侧矩阵（例如，在主对角线上具有CSI（循环移位身份）子矩阵，而另一个对角线相邻地位于主对角线）。

公开(公告)号：US20160174226A1

公开(公告)日：2016-06-16

申请号：US15051996

申请日：2016-02-24

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat ,  Vinko Erceg

IPC: H04W72/04

CPC classification number: H04W72/0446 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0064 ,  H04L5/0069 ,  H04L5/0087 ,  H04W72/0453 ,  H04W84/12 ,  Y02D70/122 ,  Y02D70/124 ,  Y02D70/14

Abstract: Range extension within single user, multiple user, multiple access, and/or MIMO wireless communications. A given communication device designed and implemented for operation in accordance with a given communication protocol, standard, and/or recommended practice operates in accordance with a down-clocked manner to effectuate operation in accordance with at least one other communication protocol, standard, and/or recommended practice. For example, first channelization may undergo down-clocking by a particular and desired ratio to generate a second channelization. As such, at least one portion of a physical layer (PHY) of a given communication device may be leveraged for use in at least one other or additional operational mode based upon the down-clocking employed. Sub-channel and/or channel adaptation may be made based upon any of a number of considerations (e.g., independently by one device, cooperatively by two or more devices, local and/or remote operating condition(s) [or changes thereof], etc.).

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.

公开(公告)号：US09204451B2

公开(公告)日：2015-12-01

申请号：US14183592

申请日：2014-02-19

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat

IPC: H04W72/04 ,  H04W74/08

CPC classification number: H04W74/0808 ,  H04W72/0493 ,  H04W72/06

Abstract: A wireless communication device is configured to perform clear channel assessment (CCA) using one or more CCA levels that are selected based on various criteria. The device receives or detects one or more packets on the communication medium, and the device then processes those one or more packets to determine status of one or more channels within one or more frequency bands using the one or more CCA levels. These CCA levels may be selected based on one or more parameters, and different CCA levels may be used at different times, for different channels, etc. Also, different CCA levels may be used to determine the status of different channels, different portions of the frequency spectrum, etc. When at least one channel is determined as being clear and available for usage, the device is configured to support communications with one or more other devices via one or more channels.

Abstract translation: 无线通信设备被配置为使用基于各种标准选择的一个或多个CCA级别来执行清除信道评估（CCA）。 设备接收或检测通信介质上的一个或多个分组，然后设备使用一个或多个CCA级别处理这些一个或多个分组以确定一个或多个频带内的一个或多个频道的状态。 可以基于一个或多个参数来选择这些CCA级别，并且可以在不同的时间，对于不同的信道等使用不同的CCA级别。此外，可以使用不同的CCA级别来确定不同信道的状态， 频谱等。当至少一个信道被确定为清楚并可用于使用时，该设备被配置为支持经由一个或多个信道与一个或多个其他设备的通信。

公开(公告)号：US20150280953A1

公开(公告)日：2015-10-01

申请号：US14736517

申请日：2015-06-11

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat

IPC: H04L27/26 ,  H04J11/00 ,  H04W72/04

CPC classification number: H04L27/2602 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0053 ,  H04L27/2627

Abstract: A wireless communication device (alternatively, device) includes a communication interface and a processor, 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 is configured to generate various orthogonal frequency division multiplexing (OFDM) and/or orthogonal frequency division multiple access (OFDMA) packets (e.g., frames, signals, etc.) that are based on any of a group of set of OFDM/A frame structures. Across the various OFDM/A frame structures, the ratio of pilot sub-carriers to data sub-carriers across resource units (RUs) of decreases as the total number of sub-carriers across the RUs increases. In addition, some of the OFDM/A frame structures include different total number of sub-carriers yet same number of pilot sub-carriers. The device is configured to perform adaptation among and between the various OFDM/A frame structures based on any one or more considerations.

Abstract translation: 无线通信设备（可选地，设备）包括通信接口和处理器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。 一种设备被配置为生成基于OFDM / A的一组集合中的任何一个的各种正交频分复用（OFDM）和/或正交频分多址（OFDMA）分组（例如，帧，信号等） 框架结构。 在各种OFDM / A帧结构中，跨越RU的副载波的总数增加时，导频子载波与资源单元（RU）之间的数据子载波的比率减小。 此外，一些OFDM / A帧结构包括不同的副载波总数，但是相同数量的导频子载波。 该设备被配置为基于任何一个或多个考虑来在各种OFDM / A帧结构之间和之间执行适配。

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：US20140198705A1

公开(公告)日：2014-07-17

申请号：US14041225

申请日：2013-09-30

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat ,  Nihar Jindal

IPC: H04W4/06

CPC classification number: H04L27/2602 ,  H04L1/04 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/006

Abstract: Communications are supported between wireless communication devices using OFDMA signaling and duplicate processing. An OFDMA frame, which includes first data intended for a first recipient device and second data intended for a second recipient device, is transmitted via a first sub-channel, and a duplicate of the OFDMA frame is transmitted via a second sub-channel. In some instances, additional duplicates of the OFDMA frame are transmitted via additional sub-channels. The OFDMA frame may be generated based on a first frequency and then down-clocked to a second frequency that corresponds to a bandwidth of one of the sub-channels. A wireless communication device configured to perform such operations may be compliant with one or more IEEE 802.11 communication standards, protocols, and/or recommended practices and may also be backward compatible with prior versions of IEEE 802.11. Different numbers of sub-channels and sub-channels of different bandwidths may be used to different times.

Abstract translation: 在使用OFDMA信令和重复处理的无线通信设备之间支持通信。 包括用于第一接收方设备的第一数据和第二接收设备的第二数据的OFDMA帧经由第一子信道被发送，并且经由第二子信道发送OFDMA帧的副本。 在一些情况下，通过附加子信道发送OFDMA帧的附加副本。 OFDMA帧可以基于第一频率产生，然后被下变频到对应于一个子信道的带宽的第二频率。 被配置为执行这种操作的无线通信设备可以符合一个或多个IEEE 802.11通信标准，协议和/或推荐做法，并且还可以向后兼容IEEE 802.11的先前版本。 不同数量的不同带宽的子信道和子信道可以用于不同的时间。