公开(公告)号：US20070060055A1

公开(公告)日：2007-03-15

申请号：US11387340

申请日：2006-03-23

申请人： Prasanna Desai ,  Brima Ibrahim

发明人： Prasanna Desai ,  Brima Ibrahim

IPC分类号： H04B7/00

CPC分类号： H04W72/1215 ,  H04B1/406 ,  H04W4/80 ,  H04W84/12 ,  H04W88/06

摘要： Certain embodiments of the invention may be found in a method and system for antenna and radio front-end topologies for a system-on-a-chip (SOC) device that combines Bluetooth and IEEE 802.11 b/g WLAN technologies. A single chip radio device that supports WLAN and Bluetooth technologies receives a WLAN signal in a WLAN processing circuitry of the radio front-end and in a Bluetooth processing circuitry of the radio front-end. Signals generated by the WLAN processing circuitry and the Bluetooth processing circuitry from the received WLAN signal may be combined in a diversity combiner that utilizes selection diversity gain combining or maximal ratio combining (MRC). When a generated signal is below a threshold value, the signal may be dropped from the combining operation. A single antenna usage model may be utilized with the single chip radio device front-end topology to support WLAN and Bluetooth communications.

摘要翻译： 本发明的某些实施例可以在组合蓝牙和IEEE 802.11b / g WLAN技术的用于片上系统（SOC）设备的天线和无线电前端拓扑的方法和系统中找到。 支持WLAN和蓝牙技术的单芯片无线电设备在无线电前端的WLAN处理电路和无线电前端的蓝牙处理电路中接收WLAN信号。 由WLAN处理电路和蓝牙处理电路从接收到的WLAN信号生成的信号可以组合在利用选择分集增益组合或最大比组合（MRC）的分集组合器中。 当生成的信号低于阈值时，可以从组合操作中丢弃该信号。 单个天线使用模型可以与单芯片无线电设备前端拓扑结合使用以支持WLAN和蓝牙通信。

公开(公告)号：US08345704B2

公开(公告)日：2013-01-01

申请号：US11950559

申请日：2007-12-05

申请人： Prasanna Desai ,  Brima Ibrahim ,  John Walley ,  Gang Lu

发明人： Prasanna Desai ,  Brima Ibrahim ,  John Walley ,  Gang Lu

IPC分类号： H04L12/40

CPC分类号： H04B1/0067 ,  H04B1/0064 ,  H04B1/0475 ,  H04B1/40 ,  H04W72/02 ,  H04W88/06

摘要： Aspects of a method and system for multi-radio coexistence and a collaborative interface may include exchanging information between a plurality of radio transceivers integrated within a single device to enable coexistence, and coordinating sharing of transmit and receive resources between the plurality of radio transceivers by controlling access to the transmit and receive resources, where any one of the plurality of radio transceivers may be enabled to be selected to control the access based on the exchanged information. Selecting one of the radio transceivers for the controlling of the access band may be based on processing capability or priority of communication. The resources may comprise frequency bands, time slots, and antenna access. The information may be exchanged via a serial bus between the plurality of radio transceivers, where the serial bus may conform to an I2C (I-square-C) multi-master serial bus. Each of the radio transceivers may conform to one or more radio frequency technology.

摘要翻译： 用于多无线电共存和协作接口的方法和系统的方面可以包括在集成在单个设备内的多个无线电收发器之间交换信息以实现共存，以及通过控制来协调多个无线电收发器之间的发送和接收资源的共享 访问发送和接收资源，其中可以使多个无线收发器中的任一个能够被选择以基于所交换的信息来控制访问。 选择用于控制接入频带的无线电收发机之一可以基于处理能力或通信的优先级。 资源可以包括频带，时隙和天线接入。 信息可以通过串行总线在多个无线电收发器之间交换，其中串行总线可以符合I2C（I-square-C）多主机串行总线。 每个无线电收发器可以符合一个或多个射频技术。

公开(公告)号：US20110294432A1

公开(公告)日：2011-12-01

申请号：US13206035

申请日：2011-08-09

申请人： Prasanna Desai ,  Sven Jerlhagen ,  Brima Ibrahim ,  Siukai Mak ,  Asif Grushkevich ,  John Walley

发明人： Prasanna Desai ,  Sven Jerlhagen ,  Brima Ibrahim ,  Siukai Mak ,  Asif Grushkevich ,  John Walley

IPC分类号： H04B7/00

CPC分类号： H04B1/715 ,  H04B2001/7154 ,  H04W28/04 ,  H04W84/18

摘要： A method for frequency selection in a wireless communication system, includes performing in a wireless device, receiving at least one signal at a current frequency; processing at least one data packet received via the received at least one signal to determine the presence of bit errors; characterizing the received at least one signal received at the current frequency based on the processing of the at least one data packet; classifying the current frequency based on at least the characterization of the received at least one signal; and selecting the current frequency based on the classification. At least one signal strength measurement may be performed on the received at least one signal, and the processing of the at least one data packet may be performed within a current channel classification update interval.

摘要翻译： 一种在无线通信系统中进行频率选择的方法，包括在无线设备中执行以当前频率接收至少一个信号; 处理经由所接收的至少一个信号接收的至少一个数据分组，以确定位错误的存在; 基于所述至少一个数据分组的处理来表征所接收的以当前频率接收的至少一个信号; 至少基于所接收的至少一个信号的特征来对当前频率进行分类; 并根据分类选择当前频率。 可以对所接收的至少一个信号执行至少一个信号强度测量，并且可以在当前信道分类更新间隔内执行至少一个数据分组的处理。

公开(公告)号：US20110021142A1

公开(公告)日：2011-01-27

申请号：US12546621

申请日：2009-08-24

申请人： Prasanna Desai ,  Chikan Kwan ,  Angel Polo ,  Song Qiao ,  Cindy Tian ,  Yuan Zhuang ,  Guoxin Xie ,  Latha Caliaperoumal ,  Brima Ibrahim

发明人： Prasanna Desai ,  Chikan Kwan ,  Angel Polo ,  Song Qiao ,  Cindy Tian ,  Yuan Zhuang ,  Guoxin Xie ,  Latha Caliaperoumal ,  Brima Ibrahim

IPC分类号： H04B7/00

CPC分类号： H04W8/005 ,  H04W4/80 ,  H04W52/0216 ,  H04W84/18 ,  Y02D70/00 ,  Y02D70/144

摘要： A dual-mode BLE device identifies idle intervals within Bluetooth BR/EDR traffic communications. The identified idle intervals are used by the dual-mode BLE device to concurrently perform various BLE activities. For example, advertising packet transmissions, advertising packet scanning, connection setup, and/or data packet communication may be concurrently performed within identified idle intervals within the Bluetooth BR/EDR traffic communications. Packet transmission timing, advertising interval, scan window, and/or packet size are determined based on the identified idle intervals within the Bluetooth BR/EDR traffic communications. A scan window is adjusted based on timing of expected advertising transmissions and/or advertising interval(s) for saving power. BLE packets and Bluetooth BR/EDR packets may be detected in a single advertising channel. Maximal payload size is set based on the identified idle intervals within Bluetooth BR/EDR traffic communications. As a slave, the dual-mode BLE device updates connection parameters based on the identified idle intervals within Bluetooth BR/EDR traffic communications.

摘要翻译： 双模式BLE设备识别蓝牙BR / EDR通信通信中的空闲间隔。 识别的空闲间隔由双模BLE设备用于同时执行各种BLE活动。 例如，广告分组传输，广告分组扫描，连接建立和/或数据分组通信可以在蓝牙BR / EDR业务通信内的标识的空闲间隔内同时执行。 基于蓝牙BR / EDR业务通信中识别的空闲间隔来确定分组传输定时，广告间隔，扫描窗口和/或分组大小。 基于预期的广告发送的定时和/或用于节省功率的广告间隔来调整扫描窗口。 可以在单个广告信道中检测到BLE分组和蓝牙BR / EDR分组。 基于蓝牙BR / EDR业务通信中识别的空闲间隔来设置最大有效载荷大小。 作为从设备，双模BLE设备基于蓝牙BR / EDR业务通信中识别的空闲间隔来更新连接参数。

公开(公告)号：US20090147763A1

公开(公告)日：2009-06-11

申请号：US11950559

申请日：2007-12-05

申请人： Prasanna Desai ,  Brima Ibrahim ,  John Walley ,  Gang Lu

发明人： Prasanna Desai ,  Brima Ibrahim ,  John Walley ,  Gang Lu

IPC分类号： H04J1/00

CPC分类号： H04B1/0067 ,  H04B1/0064 ,  H04B1/0475 ,  H04B1/40 ,  H04W72/02 ,  H04W88/06

摘要： Aspects of a method and system for multi-radio coexistence and a collaborative interface may include exchanging information between a plurality of radio transceivers integrated within a single device to enable coexistence, and coordinating sharing of transmit and receive resources between the plurality of radio transceivers by controlling access to the transmit and receive resources, where any one of the plurality of radio transceivers may be enabled to be selected to control the access based on the exchanged information. Selecting one of the radio transceivers for the controlling of the access band may be based on processing capability or priority of communication. The resources may comprise frequency bands, time slots, and antenna access. The information may be exchanged via a serial bus between the plurality of radio transceivers, where the serial bus may conform to an I2C (I-square-C) multi-master serial bus. Each of the radio transceivers may conform to one or more radio frequency technology.

摘要翻译： 用于多无线电共存和协作接口的方法和系统的方面可以包括在集成在单个设备内的多个无线电收发器之间交换信息以实现共存，以及通过控制来协调多个无线电收发器之间的发送和接收资源的共享 访问发送和接收资源，其中可以使多个无线收发器中的任一个能够被选择以基于所交换的信息来控制访问。 选择用于控制接入频带的无线电收发机之一可以基于处理能力或通信的优先级。 资源可以包括频带，时隙和天线接入。 信息可以通过串行总线在多个无线电收发器之间交换，其中串行总线可以符合I2C（I-square-C）多主机串行总线。 每个无线电收发器可以符合一个或多个射频技术。

公开(公告)号：US07301993B2

公开(公告)日：2007-11-27

申请号：US10243857

申请日：2002-09-13

申请人： Brima Ibrahim ,  Prasanna Desai

发明人： Brima Ibrahim ,  Prasanna Desai

IPC分类号： H04B1/00

CPC分类号： H04B1/7093 ,  H04L25/0232

摘要： A method and apparatus for channel estimation in a spread spectrum receiver include processing that begins by despreading a received spread spectrum complex baseband sample utilizing a pseudorandom spreading sequence to produce a despread baseband symbol. The processing continues by filtering the despread baseband symbol to attenuate adverse channel effects based on a channel response estimate to produce a filtered despread baseband symbol. The processing then continues by decoding the filtered despread baseband symbol to produce recaptured data. The processing continues by modulating the recaptured data to produce a remodulated symbol. The processing then continues by producing a reconstructed spread spectrum complex baseband sample from the remodulated symbol based on the pseudorandom spreading sequence. The processing then continues by generating the channel response estimate such that a convolution of the channel response estimate with the reconstructed spread spectrum complex baseband sample substantially emulates the received spread spectrum complex baseband sample.

摘要翻译： 用于扩展频谱接收机中的信道估计的方法和装置包括利用伪随机扩展序列解扩接收的扩展频谱复基带采样开始的处理，以产生解扩基带符号。 通过对解扩基带符号进行滤波以基于信道响应估计来衰减不利信道效应以产生经滤波的解扩基带符号，继续处理。 然后，通过对经滤波的解扩基带符号进行解码以产生再捕获的数据，继续处理。 该处理继续通过调制重新捕获的数据以产生重新调制的符号。 然后通过基于伪随机扩展序列从重新调制的符号产生重构的扩展频谱复基带样本，继续处理。 然后通过产生信道响应估计继续进行处理，使得信道响应估计与重建的扩展频谱复基带采样的卷积基本上模拟接收的扩展频谱复基带样本。

公开(公告)号：US20060270346A1

公开(公告)日：2006-11-30

申请号：US11286555

申请日：2005-11-22

申请人： Brima Ibrahim ,  Mitchell Buznitsky ,  Ahmadreza Rofougaran ,  John Walley ,  Bojko Marholev ,  Roy Tobin ,  Prasanna Desai ,  Angel Polo ,  Hea Kim ,  Paul Lettieri ,  Siukai Mak

发明人： Brima Ibrahim ,  Mitchell Buznitsky ,  Ahmadreza Rofougaran ,  John Walley ,  Bojko Marholev ,  Roy Tobin ,  Prasanna Desai ,  Angel Polo ,  Hea Kim ,  Paul Lettieri ,  Siukai Mak

IPC分类号： H04B7/00 ,  H04M1/00

CPC分类号： H04H20/08 ,  H04B1/406 ,  H04H60/80 ,  H04H60/92 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/164 ,  Y02D70/40

摘要： A method and system for a single chip integrated Bluetooth and FM transceiver and baseband processor are provided. The single chip may comprise a Bluetooth radio, an FM radio, a processor system, and a peripheral transport unit (PTU). FM data may be received and/or transmitted via the FM radio and Bluetooth data may be received and/or transmitted via the Bluetooth radio. The FM radio may receive radio data system (RDS) data. The PTU may support digital and analog interfaces. A processor in the processor system may time-multiplex processing of FM data and processing of Bluetooth data. The single chip may operate in an FM-only, a Bluetooth-only, and an FM-Bluetooth mode. The single chip may reduce power consumption by disabling portions of the Bluetooth radio during FM-only mode and/or disabling analog circuitry when performing digital processing. Communication between Bluetooth and FM channels may be enabled via the single chip.

摘要翻译： 提供了用于单芯片集成蓝牙和FM收发器和基带处理器的方法和系统。 单芯片可以包括蓝牙无线电，FM无线电，处理器系统和外围传输单元（PTU）。 可以通过FM收音机接收和/或发送FM数据，并且可以经由蓝牙无线电接收和/或发送蓝牙数据。 FM收音机可以接收无线电数据系统（RDS）数据。 PTU可以支持数字和模拟接口。 处理器系统中的处理器可以对FM数据进行时间复用处理和处理蓝牙数据。 单芯片可以仅在FM，蓝牙和FM蓝牙模式下工作。 单芯片可以通过在仅FM模式期间禁用蓝牙无线电的部分并且/或在执行数字处理时禁用模拟电路来降低功耗。 蓝牙和FM频道之间的通信可以通过单个芯片启用。

公开(公告)号：US20060084383A1

公开(公告)日：2006-04-20

申请号：US11286844

申请日：2005-11-22

申请人： Brima Ibrahim ,  John Walley ,  Prasanna Desai

发明人： Brima Ibrahim ,  John Walley ,  Prasanna Desai

IPC分类号： H04Q7/20

CPC分类号： H04W84/12 ,  H04W16/14 ,  H04W72/1215 ,  H04W74/0875 ,  H04W84/18 ,  H04W88/06

摘要： A method and system for collocated IEEE 802.11 b/g WLAN, and Bluetooth (BT) with FM in coexistent operation are provided. A single chip comprising an integrated BT radio and an integrated FM radio in a coexistence station may generate a priority signal to disable WLAN transmissions in a WLAN radio when a BT HV3 frame is available for transmission. When the priority signal is asserted, an exponentially growing retransmission backoff mechanism in the WLAN radio may be disabled. Moreover, when the BT radio and the WLAN radio are enabled for coexistence operation, a WLAN fragmentation threshold in the WLAN radio may be modified based on a WLAN modulation rate and the BT HV3 frame duration. An on-chip processor that time multiplexes FM and Bluetooth data processing may be utilized to control the BT radio operation and the FM radio operation in the single chip.

摘要翻译： 提供了一种用于并置IEEE 802.11b / g WLAN的方法和系统，以及具有FM的蓝牙（BT）的共存操作。 在BT HV3帧可用于传输的情况下，包括集成BT无线电和共存站中的集成FM无线电的单个芯片可以生成优先级信号以禁用WLAN无线电中的WLAN传输。 当优先级信号被断言时，WLAN无线电中的指数增长的重传退避机制可能被禁用。 此外，当BT无线电和WLAN无线电被启用以共存操作时，可以基于WLAN调制速率和BT HV3帧持续时间来修改WLAN无线电中的WLAN分段阈值。 时分复用FM和蓝牙数据处理的片上处理器可用于控制单芯片中的BT无线电操作和FM无线电操作。

公开(公告)号：US20120034870A9

公开(公告)日：2012-02-09

申请号：US11143559

申请日：2005-06-02

申请人： Prasanna Desai ,  Brima Ibrahim

发明人： Prasanna Desai ,  Brima Ibrahim

IPC分类号： H04B7/00

CPC分类号： H04W84/12 ,  H04W16/14 ,  H04W72/1215 ,  H04W74/0875 ,  H04W84/18 ,  H04W88/06

摘要： A method and system for achieving enhanced quality and higher throughput for collocated IEEE 802.11b/g and Bluetooth (BT) devices in coexistent operation are provided. A priority signal may be generated by a BT radio in a coexistence station to disable WLAN transmissions in a WLAN radio when a BT HV3 frame is available for transmission. When the priority signal is asserted, an exponentially growing retransmission backoff mechanism in the WLAN radio may be disabled. Moreover, when the BT radio and the WLAN radio are enabled for coexistence operation, a WLAN fragmentation threshold in the WLAN radio may be modified based on a WLAN modulation rate and the BT HV3 frame duration.

摘要翻译： 提供了一种用于在并行操作中实现并置的IEEE 802.11b / g和蓝牙（BT）设备的提高质量和更高吞吐量的方法和系统。 优先级信号可以由共存站中的BT无线电产生，以在BT HV3帧可用于传输时禁止WLAN无线电中的WLAN传输。 当优先级信号被断言时，WLAN无线电中的指数增长的重传退避机制可能被禁用。 此外，当BT无线电和WLAN无线电被启用以共存操作时，可以基于WLAN调制速率和BT HV3帧持续时间来修改WLAN无线电中的WLAN分段阈值。

公开(公告)号：US20110319020A1

公开(公告)日：2011-12-29

申请号：US12839957

申请日：2010-07-20

申请人： Prasanna Desai ,  Angel Polo ,  Chikan Kwan ,  Latha Roy ,  Yuan Zhuang ,  Ash Kapur ,  Norbert Grunert ,  Brima Ibrahim ,  John Walley

发明人： Prasanna Desai ,  Angel Polo ,  Chikan Kwan ,  Latha Roy ,  Yuan Zhuang ,  Ash Kapur ,  Norbert Grunert ,  Brima Ibrahim ,  John Walley

IPC分类号： H04B7/00

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

摘要： 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.

摘要翻译： 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。