公开(公告)号：US20130258931A1

公开(公告)日：2013-10-03

申请号：US13904388

申请日：2013-05-29

Applicant: BROADCOM CORPORATION

Inventor： Mark Gonikberg ,  Prasanna Desai ,  Brima B. Ibrahim

IPC: H04W88/06

CPC classification number: H04W88/06 ,  H04W8/005 ,  H04W76/20 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22 ,  Y02D70/23

Abstract: A circuit includes a first wireless interface circuit that transceives packetized data between a host module and a first external device in accordance with a first wireless communication protocol, wherein the first wireless protocol carries wireless telephony data for communication with a wireless telephony network. A second wireless interface circuit transceives packetized data between the host module and a second external device in accordance with a second wireless communication protocol. The second wireless interface circuit includes at least one module that is shared with first wireless interface circuit. The first wireless interface circuit and the second wireless interface circuit operate in accordance with a wireless interface schedule that includes a first time interval where the first wireless interface device and the second wireless interface device contemporaneously use the at least one module.

Abstract translation: 电路包括第一无线接口电路，其根据第一无线通信协议在主机模块和第一外部设备之间收发分组数据，其中第一无线协议携带用于与无线电话网络进行通信的无线电话数据。 第二无线接口电路根据第二无线通信协议在主机模块和第二外部设备之间收发分组数据。 第二无线接口电路包括与第一无线接口电路共享的至少一个模块。 第一无线接口电路和第二无线接口电路根据包括第一无线接口设备和第二无线接口设备同时使用至少一个模块的第一时间间隔的无线接口调度进行操作。

公开(公告)号：US20130155931A1

公开(公告)日：2013-06-20

申请号：US13716540

申请日：2012-12-17

Applicant: Broadcom Corporation

Inventor： Sudhir Prajapati ,  Payel Banerjee ,  Asish M R ,  Kashiviswanath N ,  Sachin Gupta ,  Sanjay Saha ,  Neeraj Poojary ,  Yury Gonikberg ,  Mark Gonikberg ,  Matthew Fischer ,  Kamesh Medapalli ,  Florin Baboescu ,  Steven Hall ,  Shawn Ding ,  Prasanna Desai ,  Knut Odman

IPC: H04W72/04 ,  H04W52/02

CPC classification number: H04W72/0446 ,  H04B15/00 ,  H04W16/04 ,  H04W16/14 ,  H04W52/0209 ,  H04W72/044 ,  H04W72/1215 ,  H04W74/04 ,  H04W88/04 ,  Y02D70/00 ,  Y02D70/122 ,  Y02D70/1244 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/166 ,  Y02D70/24

Abstract: Various methods and systems are provided for time domain coexistence of RF signals. In one example, among others, a method includes obtaining access to a WLAN channel during a free period of a coexisting cellular connection, providing a RDG to allow another device to transmit for a duration corresponding to at least a portion of a TXOP, and receiving a transmission during the duration. In another example, a method includes obtaining access to a WLAN channel during a transmission period of a coexisting cellular connection and providing a protection frame to defer transmissions from another device for a duration corresponding to at least a portion of a TXOP. In another example, a method includes determining a shift of a BT transaction based at least in part upon a schedule of cellular communications and shifting at least a portion of the BT transaction based upon the determined shift.

公开(公告)号：US09408147B2

公开(公告)日：2016-08-02

申请号：US14023416

申请日：2013-09-10

Applicant: Broadcom Corporation

Inventor： Angel Polo ,  Farooq Muhammad Hameed ,  Hea Joung Kim ,  Ming Lin ,  Siukai Mak ,  Guoxin Xie ,  Thomas Baker ,  Prasanna Desai ,  Robert Hulvey ,  Henrik Tholstrup Jensen

IPC: H04W52/02 ,  H04W8/00 ,  H04W4/00 ,  H04B10/516 ,  H04L27/00

CPC classification number: H04W52/0229 ,  H04B10/516 ,  H04L27/0012 ,  H04W4/80 ,  H04W8/005 ,  H04W52/0216 ,  Y02D70/142 ,  Y02D70/144

Abstract: A method of communicating data in a Bluetooth™ low energy (BLE) module is provided. The method includes modulating an outbound communication signal into a modulated signal with a particular modulation scheme based on a modulation type, and transmitting the modulated signal to a remote device via a wireless communication connection associated with the modulation type. The method also includes receiving an inbound radio frequency (RF) signal, determining if the inbound RF signal is associated with a modulation type, and demodulating the inbound RF signal with a particular modulation scheme based on the modulation type if the inbound RF signal is determined to be associated with a modulation type. In some aspects, the inbound RF signal and outbound modulated signal have symbol rates of 2 Megasymbols per second. In some implementations, the method includes switching between a legacy BLE system and an enhanced rate BLE system.

Abstract translation: 提供了一种在Bluetooth™低能量（BLE）模块中传送数据的方法。 该方法包括：基于调制类型，将出站通信信号调制成具有特定调制方式的调制信号，并通过与调制类型相关联的无线通信连接将调制信号发送到远程设备。 该方法还包括接收入站射频（RF）信号，确定入站RF信号是否与调制类型相关联，并且如果确定了入站RF信号，则基于调制类型来解调具有特定调制方案的入站RF信号 与调制类型相关联。 在一些方面，入站RF信号和出站调制信号的符号速率为每秒2兆符号。 在一些实现中，该方法包括在传统BLE系统和增强速率BLE系统之间进行切换。

公开(公告)号：US09197332B2

公开(公告)日：2015-11-24

申请号：US13871666

申请日：2013-04-26

Applicant: Broadcom Corporation

Inventor： Prasanna Desai ,  Gabriel Desjardins ,  Vincent Roussel

IPC: H04B7/00 ,  H04B15/00 ,  H04B10/69 ,  H04B17/13

CPC classification number: H04B15/00 ,  H04B10/693 ,  H04B10/6931 ,  H04B17/13

Abstract: In collocated radios, interference is mitigated to permit concurrent radio operation. In response to detection of imminent transmission of interfering wireless (i.e., RF jammer) signals, gain settings of one or more stages of front-end receiver amplifiers may be quickly configured to permit concurrent frequency division operation instead of consecutive time-division operation. This expansion of concurrent operation may improve communication bandwidth and/or may produce reliable, consistent results. Gain control responsive to detection of imminent RF jamming may maintain amplification in a linear range where interference can be filtered out. Receiver gain may be shifted from a default high gain or high sensitivity setting to lower gain to maintain integrity of a signal of interest (SoI), which avoids clipping, distortion and unwanted products caused by a high power jamming signal that could otherwise make it impossible to recover the SoI. This mitigation technique supplements and/or replaces other interference mitigation techniques.

Abstract translation: 在并置无线电中，减轻干扰以允许并发无线电操作。 响应于检测到即将发送的干扰无线（即，RF干扰信号）信号，前端接收机放大器的一级或多级的增益设置可以被快速配置为允许并行分频操作而不是连续的时分运算。 并行操作的这种扩展可以改善通信带宽和/或可以产生可靠，一致的结果。 响应于即将发生的RF干扰的检测的增益控制可将放大维持在可以滤除干扰的线性范围内。 接收机增益可能会从默认的高增益或高灵敏度设置转移到较低的增益，以保持感兴趣的信号（SoI）的完整性，从而避免由高功率干扰信号引起的削波，失真和不需要的产品，否则可能导致信号不可能 恢复SoI。 这种减轻技术补充和/或替代其他干扰减轻技术。

公开(公告)号：US09131446B2

公开(公告)日：2015-09-08

申请号：US14014540

申请日：2013-08-30

Applicant: BROADCOM CORPORATION

Inventor： Prasanna Desai

IPC: H04J3/16 ,  H04W52/02 ,  H04W16/14 ,  H04W88/06

CPC classification number: H04W52/0229 ,  H04W16/14 ,  H04W52/0225 ,  H04W88/06 ,  Y02D70/1224 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/166

Abstract: Collaborative coexistence of co-located mobile WiMAX, wireless LAN, and/or Bluetooth radios. Within a communication device that includes multi-protocol communication capability, the various radio modules included within such a communication device operate cooperatively such that collisions are avoided between those various radios. When a first of the radio modules operates as governed by a relatively rigid frame structure, a second of the radio modules capitalizes upon that predetermined nature (of the relatively rigid frame structure) to support communication during times in which that first radio module has a lower level of activity (e.g., turned off completely, within a power savings mode, in a sleep mode, etc.). The radio module operation is performed within a time-orthogonal manner, such that multiple radio modules are not attempting to transmit or receive simultaneously. Moreover, CTS2SELF operation can be employed alone or in conjunction with power savings operation of co-located radios within a communication device.

Abstract translation: 共同移动WiMAX，无线局域网和/或蓝牙无线电的协同共存。 在包括多协议通信能力的通信设备中，包括在这种通信设备内的各种无线电模块协作地进行操作，以避免这些各种无线电之间的冲突。 当无线电模块中的第一个由相对刚性的帧结构来操作时，第二个无线电模块利用该预定特性（相对刚性的帧结构）来支持在该第一无线电模块具有较低的 活动水平（例如，在省电模式下，睡眠模式下等）完全关闭。 以时间正交的方式执行无线电模块操作，使得多个无线电模块不尝试同时发送或接收。 此外，CTS2SELF操作可以单独使用或与通信设备内的同位置无线电的功率节省操作结合使用。

公开(公告)号：US09031608B2

公开(公告)日：2015-05-12

申请号：US14077124

申请日：2013-11-11

Applicant: Broadcom Corporation

Inventor： Brima Ibrahim ,  Prasanna Desai ,  Mark Gonikberg

IPC: H04M1/00 ,  H04B7/04 ,  H01Q21/29

CPC classification number: H04B1/401 ,  H01Q21/29 ,  H04B1/44 ,  H04B7/04 ,  H04W88/06

Abstract: A method includes determining that an antenna shared between a Bluetooth transceiver and a WLAN transceiver is available to the WLAN transceiver based on an activity signal associated with the Bluetooth transceiver. Access to the shared antenna is provided to the WLAN transceiver based on the determination, and the WLAN transceiver is configured to use diversity in transacting WLAN signals via a plurality of antennas, including the shared antenna. Access to the shared antenna is transferred from the WLAN transceiver to the Bluetooth transceiver based on the activity signal.

Abstract translation: 一种方法包括基于与蓝牙收发器相关联的活动信号来确定WLAN收发器和WLAN收发器之间共享的天线可用于WLAN收发器。 基于确定，向WLAN收发器提供对共享天线的访问，并且WLAN收发器被配置为使用经由包括共享天线的多个天线来处理WLAN信号的分集。 根据活动信号，从WLAN收发器到蓝牙收发器的访问共享天线。

公开(公告)号：US08849205B2

公开(公告)日：2014-09-30

申请号：US14036155

申请日：2013-09-25

Applicant: Broadcom Corporation

Inventor： Prasanna Desai ,  Angel Polo ,  Chikan Kwan ,  Yuan Zhuang ,  Ash Kapur ,  Norbert Grunert ,  Brima Ibrahim ,  John Walley

IPC: H04B7/00 ,  H04W4/00 ,  H04L29/06 ,  H04W8/00 ,  H04W84/18 ,  H04W28/04 ,  H04L1/00 ,  H04W28/06

CPC classification number: H04W8/005 ,  H04L1/0061 ,  H04L63/02 ,  H04W4/80 ,  H04W28/04 ,  H04W28/06 ,  H04W84/18

Abstract: A Bluetooth low energy (BLE) device receives advertising packets from an advertising BLE device. The BLE device filters the received advertising packets utilizing hardware to search for the advertiser. If the advertiser is not found by the hardware, the packet filtering continues utilizing firmware. Device identity information, comprising non-private and/or private device identities, of preferred BLE devices is partitioned to form a different white list for the hardware, firmware, and host, respectively, to concurrently support privacy and white listing. If the advertiser is found by the hardware, the hardware sends a response to the advertiser following a successful CRC check performed in the hardware. If the advertiser is found by the firmware, the device identity information of the advertiser is inserted in the white list for the hardware. The host may be awakened based on the device configuration and/or attribute type information of the received advertising packets.

Abstract translation: 蓝牙低能量（BLE）设备从广告BLE设备接收广告分组。 BLE设备使用硬件来过滤所接收的广告包以搜索广告商。 如果硬件没有找到广告商，则包过滤继续利用固件。 将包含优选BLE设备的非私有和/或私有设备标识的设备身份信息分割成分别用于硬件，固件和主机的不同的白名单，以同时支持隐私和白名单。 如果通过硬件找到广告客户，则在硬件中执行成功的CRC校验后，硬件向广告商发送响应。 如果通过固件找到广告主，则广告商的设备身份信息被插入硬件的白名单中。 可以基于所接收的广告分组的设备配置和/或属性类型信息来唤醒主机。

公开(公告)号：US20140221028A1

公开(公告)日：2014-08-07

申请号：US13871666

申请日：2013-04-26

Applicant: BROADCOM CORPORATION

Inventor： Prasanna Desai ,  Gabriel Desjardins ,  Vincent Roussel

IPC: H04B15/00

CPC classification number: H04B15/00 ,  H04B10/693 ,  H04B10/6931 ,  H04B17/13

Abstract: In collocated radios, interference is mitigated to permit concurrent radio operation. In response to detection of imminent transmission of interfering wireless (i.e., RF jammer) signals, gain settings of one or more stages of front-end receiver amplifiers may be quickly configured to permit concurrent frequency division operation instead of consecutive time-division operation. This expansion of concurrent operation may improve communication bandwidth and/or may produce reliable, consistent results. Gain control responsive to detection of imminent RF jamming may maintain amplification in a linear range where interference can be filtered out. Receiver gain may be shifted from a default high gain or high sensitivity setting to lower gain to maintain integrity of a signal of interest (SoI), which avoids clipping, distortion and unwanted products caused by a high power jamming signal that could otherwise make it impossible to recover the SoI. This mitigation technique supplements and/or replaces other interference mitigation techniques.

Abstract translation: 在并置无线电中，减轻干扰以允许并发无线电操作。 响应于检测到即将发送的干扰无线（即，RF干扰信号）信号，前端接收机放大器的一级或多级的增益设置可以被快速配置为允许并行分频操作而不是连续的时分运算。 并行操作的这种扩展可以改善通信带宽和/或可以产生可靠，一致的结果。 响应于即将发生的RF干扰的检测的增益控制可将放大维持在可以滤除干扰的线性范围内。 接收机增益可能会从默认的高增益或高灵敏度设置转移到较低的增益，以保持感兴趣的信号（SoI）的完整性，从而避免由高功率干扰信号引起的削波，失真和不需要的产品，否则可能导致信号不可能 恢复SoI。 这种减轻技术补充和/或替代其他干扰减轻技术。

公开(公告)号：US20140177603A1

公开(公告)日：2014-06-26

申请号：US13761605

申请日：2013-02-07

Applicant: BROADCOM CORPORATION

Inventor： Neeraj Poojary ,  Prasanna Desai ,  Sudhir Prajapati ,  Sachin Gupta ,  Pawan Kumar ,  Gabriel Desjardins ,  Sanjay Saha

IPC: H04W72/04

CPC classification number: H04W72/1215 ,  H04W72/1247 ,  H04W88/06

Abstract: A coexistence signaling scheme for radio communications is described. In one embodiment, a method for coexistence signaling includes establishing first communications and second communications with separate access points or base stations. The method further includes determining protocol timings of the first and second communications. Based on various communications parameters, protocol timings, and identified interference conditions, the method includes generating one or more priority signals to manage the first and second communications. According to certain aspects, overlapping channel conditions can be avoided while maintaining acceptable communications data throughput.

Abstract translation: 描述了用于无线电通信的共存信令方案。 在一个实施例中，一种用于共存信令的方法包括建立与单独接入点或基站的第一通信和第二通信。 该方法还包括确定第一和第二通信的协议定时。 基于各种通信参数，协议定时和识别的干扰条件，该方法包括生成一个或多个优先级信号以管理第一和第二通信。 根据某些方面，可以避免重叠的信道条件，同时保持可接受的通信数据吞吐量。

公开(公告)号：US20140080418A1

公开(公告)日：2014-03-20

申请号：US14085139

申请日：2013-11-20

Applicant: Broadcom Corporation

Inventor： Brima IBRAHIM ,  Prasanna Desai

IPC: H04B7/26 ,  G06F3/16 ,  G06F3/02 ,  G06F3/041 ,  G06F3/0354

CPC classification number: H04B7/26 ,  G06F3/02 ,  G06F3/03541 ,  G06F3/0412 ,  G06F3/167 ,  H04W24/00 ,  H04W28/06 ,  H04W28/18 ,  H04W84/18

Abstract: A host device may be enabled to support a plurality of wireless interfaces, wherein some of these interfaces may be utilized to support human interface device (HID) based communication. The host device may be enabled to monitor activity of HID devices based on communications via HID capable wireless interfaces, may predict future use of the HID devices based on the monitoring, and may manage sniff communication that is utilized to track and/or detect activities in the HID devices. The management of the sniff communication may comprise adjusting characteristics of the sniff communication to enable improving throughput of other wireless interfaces available via the host device that may be affected by the sniff communication. The adjustment of the characteristics of sniff communication may comprise adjusting, statically and/or dynamically, length of sniff intervals and/or designating of sniff packets as high priority requests.

Abstract translation: 可以使主机设备支持多个无线接口，其中这些接口中的一些可以用于支持基于人机接口设备（HID）的通信。 可以使主机设备能够基于通过具有HID能力的无线接口的通信来监视HID设备的活动，可以基于监视来预测HID设备的未来使用，并且可以管理用于跟踪和/或检测活动的嗅探通信 HID设备。 嗅探通信的管理可以包括调整嗅探通信的特性，以便能够改善可能受嗅探通信影响的主机设备可用的其他无线接口的吞吐量。 嗅探通信的特征的调整可以包括调整，静态和/或动态的嗅探间隔的长度和/或将嗅探包指定为高优先级请求。