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11. 发明申请

US20110319020A1 METHOD AND SYSTEM FOR MULTI-STAGE DEVICE FILTERING IN A BLUETOOTH LOW ENERGY DEVICE 有权
标题翻译：蓝牙低功耗器件中多级器件滤波的方法与系统
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。

12. 发明申请

US20100317289A1 METHOD AND SYSTEM FOR BLUETOOTH LOW POWER LINK LAYER CONNECTION SETUP 有权
标题翻译： BLUETOOTH低功率连接层连接设置方法与系统
公开(公告)号：US20100317289A1
公开(公告)日：2010-12-16
申请号：US12483958
申请日：2009-06-12
申请人： Prasanna Desai , Brima Ibrahim
发明人： Prasanna Desai , Brima Ibrahim
IPC分类号： H04B7/00
CPC分类号： H04B17/318 , H04W24/10 , H04W48/08 , H04W52/322 , H04W76/10 , H04W84/18
摘要： A mobile device such as a Bluetooth low energy (BLE) device detects out-of-band blocking signals and manages packet transmission in associated BLE link layer connections based on the detected out-of-band blocking signals. The BLE device is operable to measure out-of-band RSSI to detect out-of-band transmission interferences. The BLE device compares the measured out-of-band RSSI with an out-of-band energy profile such as a LTE energy profile or a WiMAX energy profile to determine the out-of-band blocking signals indicating cadence or periodic out-of-band traffic activities. A remote BLE deice (advertiser) aperiodically or periodically transmits an advertising packet to the BLE device for a specific link layer connection. If not connected within a determined time period, the remote BLE device (advertiser) reduces transmission power for transmitting the advertising packet. The BLE device receives the advertising packet and sends a connection request packet to the remote BLE device (advertiser).
摘要翻译：诸如蓝牙低能量（BLE）设备的移动设备基于检测到的带外阻断信号来检测带外阻塞信号并管理相关联的BLE链路层连接中的分组传输。 BLE设备可操作以测量带外RSSI以检测带外传输干扰。 BLE设备将所测量的带外RSSI与诸如LTE能量曲线或WiMAX能量曲线之类的带外能量曲线进行比较，以确定指示节奏或周期性的频带外阻塞信号，乐队交通活动。远程BLE设备（广告商）不定期地或周期地向BLE设备发送广告分组用于特定的链路层连接。如果在确定的时间段内没有连接，则远程BLE设备（广告商）降低了用于发送广告分组的传输功率。 BLE设备接收广告分组并向远程BLE设备（广告商）发送连接请求分组。

13. 发明申请

US20080219323A1 FAST AND RELIABLE CHANNEL CLASSIFICATION ALGORITHMS IN BLUETOOTH NETWORKS TO DETECT AND AVOID 2.4 GHZ INTERFERERS 有权
标题翻译：蓝牙网络中快速可靠的通道分类算法，以检测和避免2.4 GHZ干扰器
公开(公告)号：US20080219323A1
公开(公告)日：2008-09-11
申请号：US11682052
申请日：2007-03-05
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： H04B1/713
CPC分类号： H04B1/715 , H04B2001/7154 , H04W28/04 , H04W84/18
摘要： Aspects of a method and system for fast and reliable channel classification in Bluetooth networks to detect and avoid channel interferers may include one or more processors that may enable performance of signal strength measurements on received Bluetooth signals at a current selected frequency. At least one data packet received via the Bluetooth signals may be processed to determine the presence of bit errors. The processor(s) may enable characterization of the Bluetooth signals at the current selected frequency based on the signal strength measurements and/or the processing of the data packets. The current selected frequency may be selected during adaptive frequency hopping based on the characterization.
摘要翻译：用于在蓝牙网络中快速可靠的信道分类以检测和避免信道干扰的方法和系统的方面可以包括一个或多个处理器，其可以使得能够以当前选择的频率对所接收的蓝牙信号执行信号强度测量。可以处理经由蓝牙信号接收的至少一个数据分组以确定位错误的存在。处理器可以基于信号强度测量和/或数据分组的处理来启用当前所选频率的蓝牙信号的表征。可以在基于表征的自适应跳频期间选择当前选择的频率。

14. 发明申请

US20070207751A1 Radio receiver with shared low noise amplifier for multi-standard operation in a single antenna system 审中-公开
标题翻译：具有共享低噪声放大器的无线电接收器，用于单个天线系统中的多标准操作
公开(公告)号：US20070207751A1
公开(公告)日：2007-09-06
申请号：US11711719
申请日：2007-02-28
申请人： Arya Behzad , Prasanna Desai , Brima Ibrahim , Mark Gonikberg , Thomas Varghese
发明人： Arya Behzad , Prasanna Desai , Brima Ibrahim , Mark Gonikberg , Thomas Varghese
IPC分类号： H04B7/08
CPC分类号： H04B1/406 , H04B1/18
摘要： A radio receiver is described that processes multiple wireless standards using a single antenna according to embodiments of the invention. The radio receiver includes a single antenna, and a low noise amplifier that is connected to the antenna, without an intervening power divider or power splitter. The output of the low noise amplifier feeds multiple wireless receivers in a parallel arrangement that are operating according to different communications standards, including for example a Bluetooth receiver, and a WLAN 802.11 receiver. Additional wireless standards and their corresponding receivers could be added as well. The input impedance of the low noise amplifier defines the impedance seen by the antenna, regardless of which operational standard is actually in use. Since the input impedance of the low noise amplifier is substantially independent of whether the Bluetooth or WLAN paths are ON or OFF, simultaneous operation can be accomplished.
摘要翻译：描述了根据本发明的实施例的使用单个天线处理多个无线标准的无线电接收机。无线电接收机包括单个天线和连接到天线的低噪声放大器，而没有中间的功率分配器或功率分配器。低噪声放大器的输出以并行布置馈送多个无线接收器，该并行装置根据不同的通信标准（例如蓝芽接收机）和WLAN 802.11接收机进行操作。还可以添加附加的无线标准及其对应的接收器。低噪声放大器的输入阻抗定义天线所看到的阻抗，无论实际使用哪个操作标准。由于低噪声放大器的输入阻抗基本上与蓝牙或WLAN路径是ON还是OFF无关，所以可以实现同时的操作。

15. 发明申请

US20060274704A1 Method and apparatus for collaborative coexistence between Bluetooth and IEEE 802.11 G with both technologies integrated onto a system-on-a-chip (SOC) device 审中-公开
标题翻译：蓝牙和IEEE 802.11 G之间协同共存的方法和装置，将两种技术集成到片上系统（SOC）设备上
公开(公告)号：US20060274704A1
公开(公告)日：2006-12-07
申请号：US11387309
申请日：2006-03-23
申请人： Prasanna Desai , Brima Ibrahim
发明人： Prasanna Desai , Brima Ibrahim
IPC分类号： H04Q7/24
CPC分类号： H04W72/1215 , H04W72/1242 , H04W84/12 , H04W84/18 , H04W88/06
摘要： Certain embodiments of the invention may be found in a method and system for collaborative coexistence between Bluetooth and IEEE 802.11 g with both technologies integrated onto an SOC device. In a single integrated circuit (IC) that handles Bluetooth and WLAN technologies, a WLAN priority level may be selected for WLAN transmissions and a Bluetooth priority level may be selected for Bluetooth transmissions. The WLAN and Bluetooth priority levels may be selected from a plurality of priority levels. A packet transfer scheduler (PTS) may schedule the transmission of WLAN and Bluetooth signals in accordance with the selected priority levels. In some instances, the PTS may promote or demote the priority levels for WLAN and/or Bluetooth transmissions based on traffic needs.
摘要翻译：本发明的某些实施例可以在用于协同共存的方法和系统中找到，所述方法和系统具有集成到SOC设备上的两种技术的蓝牙和IEEE 802.11g之间的协同共存。在处理蓝牙和WLAN技术的单个集成电路（IC）中，可以为WLAN传输选择WLAN优先级，并且可以为蓝牙传输选择蓝牙优先级。可以从多个优先级中选择WLAN和蓝牙优先级。分组传送调度器（PTS）可以根据所选择的优先级来调度WLAN和蓝牙信号的传输。在某些情况下，PTS可以基于业务需求来提升或降低WLAN和/或蓝牙传输的优先级。

16. 发明授权

US08345704B2 Method and system for multi-radio coexistence and a collaborative interface 有权
标题翻译：用于多无线电共存的方法和系统以及协作接口
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。

17. 发明申请

US20110294432A1 FAST AND RELIABLE CHANNEL CLASSIFICATION ALGORITHMS IN BLUETOOTH NETWORKS TO DETECT AND AVOID 2.4 GHZ INTERFERERS 有权
标题翻译：蓝牙网络中快速可靠的通道分类算法，以检测和避免2.4 GHZ干扰器
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。

18. 发明申请

US20110021142A1 METHOD AND SYSTEM FOR A DUAL-MODE BLUETOOTH LOW ENERGY DEVICE 有权
标题翻译：双模蓝牙低能量器件的方法和系统
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。

19. 发明申请

US20090147763A1 METHOD AND SYSTEM FOR MULTI-RADIO COEXISTENCE AND A COLLABORATIVE INTERFACE 有权
标题翻译：多无线电共享和协作接口的方法与系统
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。

20. 发明授权

US07301993B2 Channel estimation in a spread spectrum receiver 失效
标题翻译：扩频接收机中的信道估计
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。

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