公开(公告)号：US20160269085A1

公开(公告)日：2016-09-15

申请号：US15161392

申请日：2016-05-23

Applicant: BROADCOM CORPORATION

Inventor： Joonsuk Kim ,  Ron Porat ,  Vinko Erceg

IPC: H04B7/04 ,  H04L5/00

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：US20160262139A1

公开(公告)日：2016-09-08

申请号：US15011496

申请日：2016-01-30

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat ,  Leo Montreuil

IPC: H04W72/04 ,  H04L27/26 ,  H04L5/00 ,  H04W40/02

CPC classification number: H04L27/2656 ,  H04L1/00 ,  H04L1/0025 ,  H04L1/0072 ,  H04L1/0075 ,  H04L5/0007 ,  H04L25/0224 ,  H04L27/2613 ,  H04W40/02 ,  H04W72/044 ,  Y02D70/00

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. Different long training fields (LTFs) are designed using different respective binary sequences. The LTFs are designs based on a number of resource units (RUs) and RU sizes associated with a sub-carriers/tone plan. Each RU allocation specifies a respective one or more RUs of one or more RU sizes for a communication channel. The LTFs are designed such that peak to average power ratio (PAPR) of the LTF increases across the RU allocations as size of the one or more RU sizes increases.

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。 使用不同的二进制序列设计不同的长训练场（LTF）。 LTF是基于与子载波/音调计划相关联的多个资源单元（RU）和RU大小的设计。 每个RU分配为通信信道指定一个或多个RU大小的相应的一个或多个RU。 LTF的设计使得随着一个或多个RU大小的大小增加，LTF的峰均功率比（PAPR）随着RU分配而增加。

公开(公告)号：US20160081118A1

公开(公告)日：2016-03-17

申请号：US14950641

申请日：2015-11-24

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat

IPC: 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.

公开(公告)号：US20160080191A1

公开(公告)日：2016-03-17

申请号：US14950474

申请日：2015-11-24

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat

IPC: H04L27/26 ,  H04L1/00 ,  H04L5/00 ,  H04W16/14

CPC classification number: H04L27/2636 ,  H04L1/0059 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0046 ,  H04L27/2626 ,  H04L27/2633 ,  H04W16/14 ,  H04W72/0453

Abstract: Multi-channel support within single user, multiple user, multiple access, and/or MIMO wireless communications. A communication device is implemented to encode information bit(s) to encoded bits, which subsequently can undergo processing by an interleaver that is implemented to generate interleaved bits. A constellation mapper is implemented to map the interleaved bits to constellation(s) to generate mapped signals. Two or more inverse discrete fast Fourier transform (IDFT) processors are respectively implemented to process the mapped signals to generate signal streams. For example, a first IDFT processor is implemented to process a first of the mapped signals to generate a first signal stream, and a second IDFT processor is implemented to process a second of the mapped signals to generate a second signal stream. Such a communication device also includes communication interface(s) to transmit the signal streams to at least one additional communication device.

公开(公告)号：US09203672B2

公开(公告)日：2015-12-01

申请号：US13872574

申请日：2013-04-29

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat

IPC: H04L27/32 ,  H04L27/26 ,  H04W72/04 ,  H04L1/00 ,  H04W16/14 ,  H04L5/00

CPC classification number: H04L27/2636 ,  H04L1/0059 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0046 ,  H04L27/2626 ,  H04L27/2633 ,  H04W16/14 ,  H04W72/0453

Abstract: Multi-channel support within single user, multiple user, multiple access, and/or MIMO wireless communications. A communication device is implemented to encode information bit(s) to encoded bits, which subsequently can undergo processing by an interleaver that is implemented to generate interleaved bits. A constellation mapper is implemented to map the interleaved bits to constellation(s) to generate mapped signals. Two or more inverse discrete fast Fourier transform (IDFT) processors are respectively implemented to process the mapped signals to generate signal streams. For example, a first IDFT processor is implemented to process a first of the mapped signals to generate a first signal stream, and a second IDFT processor is implemented to process a second of the mapped signals to generate a second signal stream. Such a communication device also includes communication interface(s) to transmit the signal streams to at least one additional communication device.

Abstract translation: 单用户，多用户，多路访问和/或MIMO无线通信中的多信道支持。 实现通信设备以将信息比特编码到编码比特，随后可以通过被实现来生成交织比特的交织器进行处理。 实现星座映射器将交织的比特映射到星座以生成映射的信号。 分别实现两个或多个反离散快速傅立叶变换（IDFT）处理器来处理映射的信号以产生信号流。 例如，实施第一IDFT处理器来处理第一映射信号以产生第一信号流，并且实现第二IDFT处理器来处理映射信号中的第二映射信号以产生第二信号流。 这样的通信设备还包括将信号流发送到至少一个附加通信设备的通信接口。

公开(公告)号：US20150312077A1

公开(公告)日：2015-10-29

申请号：US14736479

申请日：2015-06-11

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat

IPC: H04L27/26 ,  H04W72/04

CPC classification number: H04L27/2646 ,  H04L1/00 ,  H04L5/00 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0094 ,  H04L27/2637 ,  H04W72/0453

Abstract: A wireless communication device (alternatively, device) 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 (OHM) and/or orthogonal frequency division multiple access (OFDMA) packets (e.g., frames, signals, etc.) that are based on any of 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) 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）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帧集合中的任一组的各种正交频分复用（OHM）和/或正交频分多址（OFDMA）分组（例如，帧，信号等） 结构。 在各种OFDM / A帧结构中，导频子载波与资源单元（RU）之间的数据子载波的比率随着跨越RU的副载波总数增加而减小。 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：US20150023449A1

公开(公告)日：2015-01-22

申请号：US14510313

申请日：2014-10-09

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat ,  Nihar Jindal

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L5/0048 ,  H04L5/0007 ,  H04L27/2613

Abstract: A wireless communication device includes a communication interface and a processor and is configured to generate a preamble of an OFDM packet that includes signal fields (SIGs) that specify first characteristics of a remainder of the OFDM packet that follows the SIG fields. A first at least one SIG includes information to specify second characteristics of a second at least one SIG that follows the first at least one SIG. The wireless communication device then transmits the OFDM packet to another wireless communication device. The second characteristics specifies any number of characteristics including any one or more of a size of a GI between the first at least one SIG and the second at least one SIG, a MCS used to generate the second at least one SIG, a length of the second at least one SIG, or a number of OFDM symbols of the second at least one SIG.

Abstract translation: 无线通信设备包括通信接口和处理器，并且被配置为生成包括指定跟随SIG字段的OFDM分组的其余部分的第一特征的信号字段（SIG）的OFDM分组的前导码。 第一至少一个SIG包括用于指定第一至少一个SIG之后的第二至少一个SIG的第二特征的信息。 无线通信设备然后将OFDM分组发送到另一无线通信设备。 第二特征指定包括在第一至少一个SIG和第二至少一个SIG之间的GI大小中的任何一个或多个的任何数量的特征，用于生成第二至少一个SIG的MCS， 第二至少一个SIG，或第二至少一个SIG的多个OFDM符号。

公开(公告)号：US20140362840A1

公开(公告)日：2014-12-11

申请号：US14296733

申请日：2014-06-05

Applicant: BROADCOM CORPORATION

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

IPC: H04W88/06 ,  H04W84/12

CPC classification number: H04W88/06 ,  H04L1/00 ,  H04L1/0003 ,  H04L1/0009 ,  H04W72/12 ,  H04W84/12

Abstract: Coordination and synchronization is performed between two or more wireless network managers (e.g., access points (APs)). A first wireless network manager supports first communications with first other wireless communication devices, and a second wireless network manager supports second communications with those first and/or second other wirelessly case devices. The first and second wireless network managers also support communications with one another to coordinate the first and second communications supported with the first and/or second other wireless communication devices. Examples of coordination include selection of which other wireless communication devices are serviced or in communication with which of the first and second wireless network managers, selection of operational parameters (e.g., modulation coding set (MCS), beamforming, frequency band assignment, channel assignment, scheduling information, transmit power, etc.) for the first and second wireless communication devices, synchronization to a common clock (e.g., using timing synchronization function (TSF)).

Abstract translation: 在两个或多个无线网络管理器（例如，接入点（AP））之间执行协调和同步。 第一无线网络管理器支持与第一其他无线通信设备的第一通信，并且第二无线网络管理器支持与那些第一和/或第二其他无线情况设备的第二通信。 第一和第二无线网络管理器还支持彼此进行通信，以协调第一和/或第二其他无线通信设备支持的第一和第二通信。 协调的示例包括选择哪些其他无线通信设备被服务或与第一和第二无线网络管理者中的哪一个通信，选择操作参数（例如，调制编码集（MCS），波束成形，频带分配，信道分配， 调度信息，发送功率等），与公共时钟的同步（例如，使用定时同步功能（TSF））。

公开(公告)号：US20140254510A1

公开(公告)日：2014-09-11

申请号：US14183592

申请日：2014-02-19

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat

IPC: H04W72/04

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：US20130315169A1

公开(公告)日：2013-11-28

申请号：US13954492

申请日：2013-07-30

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat ,  Jun Zheng

IPC: H04L5/00

CPC classification number: H04B7/0413 ,  H04B2201/70706 ,  H04L27/2621 ,  H04L27/2666 ,  H04W84/12 ,  Y02B80/50 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144

Abstract: Selective processing of one or more packets to be transmitted from a wireless communication device to another wireless communication device is effective to reduce the peak to average power ratio (PAPR) of the transmission. The one or more packets are transmitted via two or more sub-bands of an available transmission medium. The number of coefficients or factors within that sequence corresponds to the number of sub-bands via which the one or more packets are to be transmitted. Also, a phase ramp or time-domain cyclic shift may be added to one or more of the packets after having undergone multiplication by one of the coefficients or factors within the sequence.

Abstract translation: 要从无线通信设备发送到另一无线通信设备的一个或多个分组的选择性处理有效地降低传输的峰均功率比（PAPR）。 一个或多个分组经由可用传输介质的两个或多个子带传输。 该序列中的系数或因子的数量对应于要发送一个或多个分组的子带的数量。 而且，相位斜坡或时域循环移位可以在已经经过序列中的一个系数或因子的乘积之后被添加到一个或多个分组中。