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    • 4. 发明申请
    • METHODS AND APPARATUS FOR SUPPORTING SYNCHRONIZATION BETWEEN GROUPS OF DEVICES
    • 用于支持设备组之间的同步的方法和装置
    • WO2011112716A1
    • 2011-09-15
    • PCT/US2011/027750
    • 2011-03-09
    • QUALCOMM IncorporatedWANG, HuaSHAKKOTTAI, SanjayWU, XinzhouLI, JunyiJOVICIC, Aleksandar
    • WANG, HuaSHAKKOTTAI, SanjayWU, XinzhouLI, JunyiJOVICIC, Aleksandar
    • H04W84/20
    • H04W84/20H04W56/0015H04W92/10
    • Methods and apparatus related to supporting rapid synchronization between groups of wireless communications devices are described. Described methods and apparatus are well suited for use in peer to peer wireless communications systems in which a plurality of ad hoc peer to peer networks may be formed, each ad hoc network operating with its own notion of time. As two groups of devices, having different notions of time, come within proximity of one another, a wireless communications device of a first group detects the presence of a member of a second group. The wireless device determines that network timing re-synchronization is to be performed by one of the first and second groups and transmits a re-synchronization alert signal on a dedicated resource. Subsequently, the wireless device transmits a timing synchronization signal in accordance with new timing. Intended devices, which detect the alert signal and timing synchronization signal, adjust their internal timing.
    • 描述了支持无线通信设备组之间的快速同步的方法和装置。 描述的方法和装置非常适合用于可以形成多个自组织对等网络的对等无线通信系统,每个自组织网络以其自己的时间概念运行。 作为具有不同时间概念的两组设备彼此接近,第一组的无线通信设备检测第二组的成员的存在。 无线设备确定网络定时重新同步将由第一组和第二组之一执行,并在专用资源上发送重新同步报警信号。 随后,无线设备根据新的定时发送定时同步信号。 用于检测报警信号和定时同步信号的设备调整其内部时序。
    • 9. 发明申请
    • HIGH RESOLUTION AUTO-TUNING FOR A VOLTAGE CONTROLLED OSCILLATOR
    • 高分辨率自动调谐电压控制振荡器
    • WO2007055870A2
    • 2007-05-18
    • PCT/US2006/040284
    • 2006-10-13
    • SKYWORKS SOLUTIONS, INC.WANG, HuaRIPLEY, David, S.ROLL, Bryan, J.
    • WANG, HuaRIPLEY, David, S.ROLL, Bryan, J.
    • H04B1/06
    • H03L7/0992H03L7/099H03L7/10H03L7/18H03L7/187H03L7/193
    • According to one exemplary embodiment, an auto-tuning circuit (104) coupled to a voltage controlled oscillator (102) in a phase locked loop, where the voltage controlled oscillator is coupled to a capacitor array (105), includes a prescaler circuit (106) configured to provide a divided voltage controlled oscillator frequency, where the prescaler circuit is used in the phase locked loop during fine tuning of the voltage controlled oscillator in the auto-tuning circuit during coarse tuning of the voltage controlled oscillator. The auto-tuning circuit further includes a digital processing logic circuit (108) coupled to the prescaler circuit and configured to determine a capacitance of the capacitor array by comparing comp_cnt to a pre-determined value, where comp_cnt is determined by a number of cycles of the divided voltage controlled oscillator frequency that occur in a calibration interval.
    • 根据一个示例性实施例,耦合到锁相环中的压控振荡器(102)的自调谐电路(104),其中压控振荡器耦合到电容器阵列(105),包括预分频器电路(106) ),其被配置为提供分压控制的振荡器频率,其中在电压控制振荡器的粗调谐期间,在自调谐电路中的压控振荡器进行微调时,预分频器电路用于锁相环。 自动调谐电路还包括耦合到预分频器电路的数字处理逻辑电路(108),并配置为通过将comp_cnt与预定值进行比较来确定电容器阵列的电容,其中comp_cnt由多个周期的 在校准间隔内发生的分压电压振荡器频率。