公开(公告)号：US10244414B2

公开(公告)日：2019-03-26

申请号：US15185911

申请日：2016-06-17

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat ,  Matthew James Fischer

IPC: H04J11/00 ,  H04L27/26 ,  H04W16/14 ,  H04W24/08 ,  H04W52/16 ,  H04B17/345

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 and transmits a first signal that includes a field that specifies an acceptable interference level (AIL) for concurrent communication for use by a first other WDEV to determine whether a transmission from the first other WDEV to a second other WDEV acceptably or unacceptably interferes with another transmission from the WDEV. Concurrent communication (e.g., from the WDEV to a third other WDEV, and from the first other WDEV to the second other WDEV) may be made when the AIL compares favorably with the AIL.

公开(公告)号：US10003441B2

公开(公告)日：2018-06-19

申请号：US15142283

申请日：2016-04-29

Applicant: BROADCOM CORPORATION

Inventor： Leo Montreuil ,  Ron Porat

IPC: H04W4/00 ,  H04L5/00 ,  H04B7/0452 ,  H04L12/46 ,  H04L12/28 ,  H04B7/0408 ,  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 selects a resource unit (RU) from an orthogonal frequency division multiple access (OFDMA) sub-carrier plan for use in supporting communications with another WDEV. The WDEV transmits a signal to the other WDEV that includes information that specifies the RU that is selected from the OFDMA sub-carrier plan and then supports communications with the other WDEV using the RU that is selected from the OFDMA sub-carrier plan. The OFDMA sub-carrier plan includes multiple OFDMA sub-carrier sub-plans of different sized RUs and null sub-carriers.

公开(公告)号：US09774428B2

公开(公告)日：2017-09-26

申请号：US15142431

申请日：2016-04-29

Applicant: BROADCOM CORPORATION

Inventor： Leo Montreuil ,  Ron Porat

IPC: H04L5/00 ,  H04B7/0452 ,  H04L12/46 ,  H04L12/28 ,  H04B7/0408 ,  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.

公开(公告)号：US09503165B2

公开(公告)日：2016-11-22

申请号：US14612800

申请日：2015-02-03

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat ,  Tu Viet Nguyen

IPC: H04W4/00 ,  H04B7/04 ,  H04B7/06 ,  H04L27/26 ,  H04L5/00

CPC classification number: H04B7/0452 ,  H04B7/0413 ,  H04B7/068 ,  H04L5/0007 ,  H04L27/2657

Abstract: A wireless communication device includes circuitry and capability to perform carrier frequency offset (CFO) estimation based on signals received from one or more other wireless communication devices. In an orthogonal frequency division multiple access (OFDMA) implementation, the wireless communication device receives two or more OFDMA symbols from first and second other wireless communication devices that include data and a copy/repeat of that data from each of the respective first and second other wireless communication devices within specified one or more sub-carriers. The sub-carrier assignment for the first and second other wireless communication devices is made such that the first wireless communication device transmits first data and the copy of that first data using a first at least one sub-carrier, and the second wireless communication device transmits second data and the copy of that second data using a second at least one sub-carrier.

公开(公告)号：US20160261452A1

公开(公告)日：2016-09-08

申请号：US15011493

申请日：2016-01-30

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat ,  Leo Montreuil

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

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. Short training field (STF) sequences are designed using a base binary sequence. In some examples, the base binary sequence is specified as [−1, −1 −1 +1 +1 +1 −1, +1, +1 +1 −1 +1 +1 −1, +1]. One STF includes the base binary sequence mapped. Another STF includes the base binary sequence followed by 0 followed by a phased rotated version of the base binary sequence. Another STF includes the base binary sequence followed by 0 followed by an inverted version of the base binary sequence.

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。 使用基本二进制序列设计短训练场（STF）序列。 在一些示例中，基本二进制序列被指定为[-1，-1 -1 +1 +1 +1 -1，+1，+1 +1 -1 +1 +1 -1，+ 1]。 一个STF包括映射的基本二进制序列。 另一个STF包括基本二进制序列，随后是0，然后是基本二进制序列的相位旋转版本。 另一个STF包括基本二进制序列，后跟0，后面是基本二进制序列的反向版本。

公开(公告)号：US09379859B2

公开(公告)日：2016-06-28

申请号：US14721146

申请日：2015-05-26

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat

IPC: H04W4/00 ,  H04L5/00 ,  H04W72/00 ,  H04W84/12

CPC classification number: H04L5/0023 ,  H04L5/0044 ,  H04L5/0055 ,  H04L5/0066 ,  H04L5/0092 ,  H04L5/0098 ,  H04W72/005 ,  H04W84/12 ,  Y02D70/122 ,  Y02D70/124 ,  Y02D70/14

Abstract: Downclocking and/or adaptive sub-carriers for single user, multiple user, multiple access, and/or MIMO wireless communications. Communication device operation within a wireless local area network (WLAN/WiFi) is effectuated in the frequency spectra typically associated with television broadcast channels. Operation is made on a secondary non-interfering basis to such television broadcast channels. Any desired channel bandwidth (e.g., 6 MHz, 7 MHz, 8 MHz, etc.) may be employed. Adaptation with respect to the number of data sub-carriers within different respective packets may be made in accordance with two or more respective operational modes. For example, modification of the number of data sub-carriers in different respective packets may be made to increase the signal bandwidth from a first band was to a second bandwidth. Also, appropriate frequency down-clocking of a first channel bandwidth may be performed to generate the desired channel bandwidth to be employed within an available television broadcast channel bandwidth.

公开(公告)号：US20160182167A1

公开(公告)日：2016-06-23

申请号：US15054778

申请日：2016-02-26

Applicant: BROADCOM CORPORATION

Inventor： Matthew James Fischer ,  Ron Porat

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

CPC classification number: H04H20/16 ,  H04B7/2612 ,  H04L5/0023 ,  H04L5/0053 ,  H04L27/2602 ,  H04L45/74 ,  H04L67/12 ,  H04L67/22 ,  H04L69/22 ,  H04W74/006 ,  H04W74/0816

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.

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。 设备生成并向其他设备发送（RTS）到组（RTG）帧的请求。 响应于RTG帧，设备从一个或多个其他设备接收清除发送（CTS），并且生成并发送正交频分多址（OFDMA）数据帧到其他一个或多个 基于此的装置。 RTG帧可以包括通过不同信道，子信道，子载波等发送到不同的其他设备的不同RTS。

公开(公告)号：US20160013908A1

公开(公告)日：2016-01-14

申请号：US14865425

申请日：2015-09-25

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat

IPC: H04L5/00 ,  H04L25/02

CPC classification number: H04L5/0051 ,  H04L5/0026 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0232 ,  H04L27/2613 ,  H04L27/2666 ,  H04W84/12

Abstract: Pilot tones are included within symbols (e.g., orthogonal frequency division multiplexing (OFDM) symbols) transmitted between wireless communication devices. The pilot tones occupy fewer than all tone locations in any given symbol, and the pilot tones occupy different respective locations within different symbols. Generally, these traveling pilots are assigned to different respective tone locations in different symbols. In total, the pilot tones did not cover every single tone location within the symbols used to convey information between devices. Considering for example, when pilots occupy fewer than all tone locations, even among multiple symbols, a device may perform interpolation to generate a pilot tone estimate corresponding to a tone location not occupied by pilot tone within any symbol. Also, power or magnitude of the pilot tones themselves may be boosted or amplified relative to power magnitude of other tones within such symbols.

Abstract translation: 导频音包括在无线通信设备之间传输的符号（例如，正交频分复用（OFDM）符号）内。 导频音在任何给定符号中占据比所有音调位置少，并且导频音在不同符号内占据不同的相应位置。 通常，将这些行驶导航器分配给不同的符号中的不同的各个音调位置。 总的来说，导频音没有覆盖用于在设备之间传送信息的符号中的每个单个音调位置。 考虑到例如，当导频占用少于所有音调位置时，即使在多个符号之中，设备也可以执行内插以产生对应于任何符号内未被导频音占据的音调位置的导频音估计。 此外，导频音调本身的功率或幅度可以相对于这样的符号内的其他音调的功率幅度被增强或放大。

公开(公告)号：US20150349860A1

公开(公告)日：2015-12-03

申请号：US14821939

申请日：2015-08-10

Applicant: BROADCOM CORPORATION

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

IPC: H04B7/04 ,  H04W88/08 ,  H04W88/02

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：US09203673B2

公开(公告)日：2015-12-01

申请号：US13872591

申请日：2013-04-29

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat

IPC: H04W4/00 ,  H04L27/26 ,  H04L1/00 ,  H04L1/06 ,  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.

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。 实现通信设备的处理器来处理信号以产生经处理的信号。 此外，通信设备分别包括多个逆离散快速傅里叶变换（IDFT）处理器，以分别处理处理的信号以分别在信道上生成信号流（例如，实施第一个IDFT处理器以处理第一处理信号以产生 基于第一数量的正交频分复用（OFDM）音调的基于快速傅立叶变换（FFT）信道化的第一信号流，以及第一IDFT处理器，用于处理第二处理信号以产生基于 穿过第二数量的OFDM音调的FFT信道化）。 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。