公开(公告)号：US20160227437A1

公开(公告)日：2016-08-04

申请号：US15013653

申请日：2016-02-02

Applicant: Broadcom Corporation

Inventor： Andrew Blanksby ,  Matthias Korb ,  Ron Porat ,  Dignus-Jan Moelker

IPC: H04W28/06 ,  H04L29/06

CPC classification number: H04L12/6418 ,  H04L1/00 ,  H04L1/0083 ,  H04L12/00 ,  H04L69/22

Abstract: Methods, systems, and apparatuses are described for providing device(s) with additional processing time to process a packet received wirelessly while still meeting the legacy SIFS time constraint. The additional processing time may be achieved by adding, by a device transmitting the packet, padding and/or a packet extension to the last symbol of the packet. The additional processing time provided to the device(s) advantageously reduces the amount of extra hardware that would normally be added to meet the SIFS time constraint. The amount of padding and/or packet extension to be added to the last symbol is balanced to minimize the complexity of the device(s) against the reduction in system efficiency incurred by the device(s).

Abstract translation: 描述了用于向设备提供额外的处理时间来处理在无线状态下接收的分组的方法，系统和装置，同时仍满足传统SIFS时间约束。 附加处理时间可以通过将发送分组的设备，填充和/或分组扩展添加到分组的最后一个符号来实现。 提供给设备的附加处理时间有利地减少了通常将被添加以满足SIFS时间约束的额外硬件的量。 对要添加到最后一个符号的填充和/或分组扩展的量进行平衡，以最小化设备的复杂性，从而降低由设备引起的系统效率。

公开(公告)号：US09407485B2

公开(公告)日：2016-08-02

申请号：US14814991

申请日：2015-07-31

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat ,  Jun Zheng

IPC: H04L27/26 ,  H04W84/12 ,  H04W52/18 ,  H04W72/12

CPC classification number: H04L27/2618 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2666 ,  H04W52/18 ,  H04W72/1231 ,  H04W84/12

Abstract: Short training field (STF) for use within single user, multiple user, multiple access, and/or MIMO wireless communications. An STF design as is made such that the power associated with the tone indices at the edges of the STF design is relatively less than the power associated with the tone indices more centrally located within the STF design. Also, when multiple respective operational modes are supported (e.g., 1 MHz and 2 MHz), the respective STF designs corresponding to those respective operational modes have a great deal of similarity. For example, the respective STF designs for different respective operational modes may have certain common STF tone indices among those respective STF designs.

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：US20160080190A1

公开(公告)日：2016-03-17

申请号：US14950382

申请日：2015-11-24

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L27/2628 ,  H04L1/0033 ,  H04L1/0041 ,  H04L1/006 ,  H04L1/0071 ,  H04L1/06 ,  H04L5/001 ,  H04L5/0046 ,  H04L27/2626 ,  H04L27/2633 ,  H04L27/2636

Abstract: Multi-channel support within single user, multiple user, multiple access, and/or MIMO wireless communications. A processor of the communication device is implemented to process a signal to generate processed signals. Also, the communication device includes multiple inverse discrete fast Fourier transform (IDFT) processors respectively to process the processed signals to generate a signal streams respectively across channels (e.g., a first of the IDFT processors is implemented to process a first processed signal to generate a first signal stream based on a fast Fourier transform (FFT) channelization across a first number of orthogonal frequency division multiplexing (OFDM) tones, and a second of the IDFT processors is implemented to process a second processed signal to generate a second signal stream based on the FFT channelization across a second number of OFDM tones). The communication device also includes communication interface(s) to transmit the signal streams to at least one additional communication device.

公开(公告)号：US20160080186A1

公开(公告)日：2016-03-17

申请号：US14948546

申请日：2015-11-23

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat

IPC: H04L27/26 ,  H04L29/06 ,  H04B7/06 ,  H04L5/00

CPC classification number: H04L27/2602 ,  H04B7/0689 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/2613 ,  H04L69/22

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 packet(s) that include a signal field (SIG) and a copy of that SIG (e.g., a repeat of the SIG, a repetition of the SIG, a duplicate of the SIG, etc.). In some examples, the copy of the SIG adjacently follows the SIG. Also, in some examples of a OFDM/A packet, the SIG and its copy are based on one communication protocol, standard, and/or recommended practice, and another field therein is based on another communication protocol, standard, and/or recommended practice.

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。 该设备被配置为生成包括信号字段（SIG）和该SIG的副本（例如，SIG的重复，SIG的重复，SIG的副本等）的OFDM / A分组。 ）。 在某些例子中，SIG的副本跟随SIG。 此外，在OFDM / A分组的一些示例中，SIG及其副本基于一个通信协议，标准和/或推荐的实践，并且其中的另一个领域基于另一通信协议，标准和/或推荐的实践 。

公开(公告)号：US09197473B2

公开(公告)日：2015-11-24

申请号：US14297739

申请日：2014-06-06

Applicant: Broadcom Corporation

Inventor： Ron Porat ,  Nihar Jindal

IPC: H04L5/00 ,  H04L27/26 ,  H04L29/06

CPC classification number: H04L27/2602 ,  H04L5/0007 ,  H04L5/003 ,  H04L5/0053 ,  H04L27/2613 ,  H04L27/2634 ,  H04L69/22

Abstract: A wireless communication device (‘device’) is configured to generate an OFDM/A packet that includes at least one OFDM/A symbol that includes at least one SIG having SIG information modulated on only even (or odd) sub-carriers and does not include any information modulated on odd (or even) sub-carriers of a set of OFDM/A sub-carriers. The set of OFDM/A sub-carriers may be all or less than all of available sub-carriers. The device may generate the packet to include a preamble and a payload such that the payload, which may be composed of at least one additional OFDM/A symbol, includes data modulated on some or all of the sub-carriers of the set of OFDM/A sub-carriers. The device can modulate and transmit SIG information and data differently within the preamble and the payload (e.g., with higher ordered modulation or MCS for the data and less power per sub-carrier than for the preamble).

Abstract translation: 无线通信设备（“设备”）被配置为生成包括至少一个OFDM / A符号的OFDM / A分组，OFDM / A码元包括至少一个SIG，其具有仅在偶数（或奇数）个子载波上调制的信号信息，并且不 包括在一组OFDM / A子载波的奇数（或甚至）个子载波上调制的任何信息。 OFDM / A子载波的集合可以全部或者小于所有可用的子载波。 设备可以生成分组以包括前同步码和有效载荷，使得可以由至少一个附加OFDM / A符号组成的有效载荷包括在OFDM / A / NACK中的一些或全部子载波上调制的数据， 一个子载体。 该装置可以在前同步码和有效载荷内（例如，对于数据具有更高阶调制或MCS，并且每个子载波的功率比对于前同步码小），可以不同地调制和发送SIG信息和数据。

公开(公告)号：US20140362935A1

公开(公告)日：2014-12-11

申请号：US14297739

申请日：2014-06-06

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat ,  Nihar Jindal

IPC: H04L27/26 ,  H04L29/06

CPC classification number: H04L27/2602 ,  H04L5/0007 ,  H04L5/003 ,  H04L5/0053 ,  H04L27/2613 ,  H04L27/2634 ,  H04L69/22

Abstract: A wireless communication device (‘device’) is configured to generate an OFDM/A packet that includes at least one OFDM/A symbol that includes at least one SIG having SIG information modulated on only even (or odd) sub-carriers and does not include any information modulated on odd (or even) sub-carriers of a set of OFDM/A sub-carriers. The set of OFDM/A sub-carriers may be all or less than all of available sub-carriers. The device may generate the packet to include a preamble and a payload such that the payload, which may be composed of at least one additional OFDM/A symbol, includes data modulated on some or all of the sub-carriers of the set of OFDM/A sub-carriers. The device can modulate and transmit SIG information and data differently within the preamble and the payload (e.g., with higher ordered modulation or MCS for the data and less power per sub-carrier than for the preamble).

Abstract translation: 无线通信设备（“设备”）被配置为生成包括至少一个OFDM / A符号的OFDM / A分组，OFDM / A码元包括至少一个SIG，其具有仅在偶数（或奇数）个子载波上调制的信号信息，并且不 包括在一组OFDM / A子载波的奇数（或甚至）个子载波上调制的任何信息。 OFDM / A子载波的集合可以全部或者小于所有可用的子载波。 设备可以生成分组以包括前同步码和有效载荷，使得可以由至少一个附加OFDM / A符号组成的有效载荷包括在OFDM / A码组的一些或全部子载波上调制的数据， 一个子载体。 该装置可以在前同步码和有效载荷内（例如，对于数据具有更高阶调制或MCS，并且每个子载波的功率比对于前同步码小），可以不同地调制和发送SIG信息和数据。

公开(公告)号：US10090948B2

公开(公告)日：2018-10-02

申请号：US15054778

申请日：2016-02-26

Applicant: BROADCOM CORPORATION

Inventor： Matthew James Fischer ,  Ron Porat

IPC: H04W72/04 ,  H04H20/16 ,  H04L29/06 ,  H04L12/741 ,  H04B7/26 ,  H04W74/00 ,  H04L29/08 ,  H04W74/08 ,  H04L5/00 ,  H04L27/26

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 generates and transmits a request to send (RTS) to group (RTG) frame to other devices. In response to the RTG frame, the device receives clear to send (CTS)(s) from one or more of the other devices and generates and transmits an orthogonal frequency division multiple access (OFDMA) data frame to those one or more of the other devices based thereon. The RTG frame can include different RTSs transmitted via different channels, sub-channels, sub-carriers, etc. to the different other devices.

公开(公告)号：US09923742B2

公开(公告)日：2018-03-20

申请号：US14948546

申请日：2015-11-23

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat

IPC: H04L27/26 ,  H04L5/00 ,  H04L29/06 ,  H04B7/06

CPC classification number: H04L27/2602 ,  H04B7/0689 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/2613 ,  H04L69/22

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 packet(s) that include a signal field (SIG) and a copy of that SIG (e.g., a repeat of the SIG, a repetition of the SIG, a duplicate of the SIG, etc.). In some examples, the copy of the SIG adjacently follows the SIG. Also, in some examples of a OFDM/A packet, the SIG and its copy are based on one communication protocol, standard, and/or recommended practice, and another field therein is based on another communication protocol, standard, and/or recommended practice.

公开(公告)号：US09867214B2

公开(公告)日：2018-01-09

申请号：US14950641

申请日：2015-11-24

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat

IPC: H04W74/08 ,  H04W72/04 ,  H04W72/06

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.