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    • 1. 发明申请
    • EFFICIENT PAGING IN A WIRELESS COMMUNICATION SYSTEM
    • 无线通信系统中的高效寻呼
    • WO2005125234A3
    • 2007-12-27
    • PCT/US2005020257
    • 2005-06-09
    • FLARION TECHNOLOGIES INCLAROIA RAJIVLI JUNYIRANGAN SUNDEEPHANDE PRASHANTH
    • LAROIA RAJIVLI JUNYIRANGAN SUNDEEPHANDE PRASHANTH
    • H04W68/00H04W68/02
    • H04W68/025
    • Methods and apparatus for efficient two-stage paging wireless communications systems are described. Wireless terminals (300) are assigned to paging groups. A few first paging message information bits are modulated (using non-coherent modulation) into a first paging signal and communicated from a base station to wireless terminals (200). WTs wake-up, receive the first paging signal and quickly ascertain whether its paging group should expect a second paging signal, if so, the WT is operated to receive the second paging signal; otherwise, the WT goes back to sleep conserving power. The base station modulates (using coherent modulation) a number of second message information bits into a second paging signal and transmits the signal to WTs. From the information in first and second paging signals, a WT can determine that it is the paged WT and process the paging instructions. The intended paged WT can transmit an acknowledgement signal on a dedicated uplink resource.
    • 描述了用于有效的两阶段寻呼无线通信系统的方法和装置。 无线终端(300)被分配给寻呼组。 几个第一寻呼消息信息比特被调制(使用非相干调制)到第一寻呼信号中并从基站传送到无线终端(200)。 WT唤醒,接收第一个寻呼信号,并快速确定其寻呼组是否应该预期第二个寻呼信号,如果是,则操作WT接收第二寻呼信号; 否则,WT回去睡眠节省电力。 基站将多个第二消息信息比特(使用相干调制)调制成第二寻呼信号,并将该信号发送给WT。 根据第一和第二寻呼信号中的信息,WT可以确定它是寻呼WT并处理寻呼指令。 预期的寻呼WT可以在专用上行链路资源上发送确认信号。
    • 3. 发明申请
    • METHODS AND APPARATUS OF PROVIDING TRANSMIT DIVERSITY IN A MULTIPLE ACCESS WIRELESS COMMUNICATION SYSTEM
    • 在多路访问无线通信系统中提供传输多样性的方法和装置
    • WO2004066104A2
    • 2004-08-05
    • PCT/US2004001979
    • 2004-01-23
    • FLARION TECHNOLOGIES INCLAROIA RAJIVLI JUNYIRANGAN SUNDEEPSRINIVASAN MURARI
    • LAROIA RAJIVLI JUNYIRANGAN SUNDEEPSRINIVASAN MURARI
    • H04W88/18H04B7/06G06F
    • H04B7/0626
    • Methods and apparatus for providing channel diversity to wireless terminals (WTs) in a manner that reduces the latency between the time a WT encounters satisfactory channel conditions are described. A plurality of communications channels with different physical characteristics are maintained in a cell by a base station (BS). Each WT monitors multiple channels and maintains multiple channel estimates at the same time so that rapid switching between channels is possible. Channel quality information is conveyed from each WT to the BS. The WT or BS selects a channel based on the measured channel quality. By supporting multiple channels and by introducing periodic variations into the channels in various embodiments, the time before a WT encounters a channel with good or acceptable channel conditions is minimized even if the WT does not change location. Multiple antennas are used at the BS to support numerous channels simultaneously, e.g., by controlling antenna patterns.
    • 描述了以降低WT遇到令人满意的信道条件的时间之间的等待时间的方式向无线终端(WT)提供信道分集的方法和装置。 具有不同物理特性的多个通信信道由基站(BS)保持在小区中。 每个WT监视多个信道并同时维持多个信道估计,使得信道之间的快速切换是可能的。 信道质量信息从每个WT传送到BS。 WT或BS基于测量的信道质量来选择信道。 通过支持多个信道并且在各种实施例中引入周期性变化到信道中,即使WT不改变位置,WT遇到具有良好或可接受的信道条件的信道之前的时间被最小化。 在BS处使用多个天线来同时支持多个信道,例如通过控制天线方向图。
    • 4. 发明申请
    • METHODS AND APPARATUS FOR GENERATING, COMMUNICATING, AND/OR USING INFORMATION RELATING TO SELF-NOISE
    • 用于生成,传播和/或使用与自发信息有关的信息的方法和装置
    • WO2007075736A3
    • 2008-05-29
    • PCT/US2006048513
    • 2006-12-20
    • QUALCOMM INCRANGAN SUNDEEPLAROIA RAJIVDAS ARNABLI JUNYIFAN JOHN
    • RANGAN SUNDEEPLAROIA RAJIVDAS ARNABLI JUNYIFAN JOHN
    • H04W24/10
    • H04W24/10H04B17/24H04B17/336
    • A wireless terminal measures the received power of a tone corresponding to an intention base station null output, measures the received power of pilot signals, and determines a signal to noise ratio of the received pilot signal. The wireless terminal calculates a downlink signal to noise ratio saturation level representative of the SNR of a received downlink signal that the wireless terminal would measure on a received signal transmitted by the base station at infinite power. The calculated downlink signal to noise ratio saturation level is a function of the determined interference power, the measured received pilot signal power, and the determined pilot signal SNR. A report is generated corresponding to one of a plurality of quantized levels, the selected quantized level being the closest representation to the calculated downlink signal to noise ratio saturation level. The generated report is communicated using a dedicated control channel segment in a predetermined uplink timing structure.
    • 无线终端测量与意图基站空输出对应的音调的接收功率,测量导频信号的接收功率,并确定接收到的导频信号的信噪比。 无线终端计算表示无线终端将以无限大功率发送的接收信号对接收到的下行链路信号的SNR进行SNR测量的下行链路信噪比饱和度。 所计算的下行链路信噪比饱和电平是所确定的干扰功率,测量的接收导频信号功率和确定的导频信号SNR的函数。 产生对应于多个量化电平中的一个的报告,所选择的量化电平是与所计算的下行链路信噪比饱和电平最接近的表示。 使用专用控制信道段在预定的上行链路定时结构中传送所生成的报告。
    • 6. 发明申请
    • METHOD OF REDUCING INTERFERENCE
    • 减少干扰的方法
    • WO2009067465A2
    • 2009-05-28
    • PCT/US2008083945
    • 2008-11-18
    • QUALCOMM INCLAROIA RAJIVRANGAN SUNDEEPLI JUNYIRICHARDSON THOMASTAVILDAR SAURABH
    • LAROIA RAJIVRANGAN SUNDEEPLI JUNYIRICHARDSON THOMASTAVILDAR SAURABH
    • H04B1/707
    • H04L27/2647H04B1/7103H04B7/0854H04B7/0857H04B2201/70702
    • Various schemes for reducing effects of interference within communication systems are disclosed. A transmitter transmits a signal in a first time interval and a scrambled version of the signal in a second time interval, which does not overlap with the first time interval. A receiver receives a composite signal including a signal transmitted from the desired transmitter as well as signals from interferers in the first or the second time interval. The receiver determines a dominant interferer and obtains knowledge of signal scrambling done by the interferer as well as the desired transmitter by sensing an identification associated with the interferer or the desired transmitter. This knowledge is employed to determine coefficients for combining the received composite signals received in the first and the second time interval in order to recover the desired signal in a manner that maximizes the SNR associated with the desired signal or completely cancels the dominant interference.
    • 公开了用于减少通信系统内的干扰影响的各种方案。 发射机在第一时间间隔中发送信号,并在不与第一时间间隔重叠的第二时间间隔中发送信号的加扰版本。 接收机在第一或第二时间间隔内接收包括从期望发射机发送的信号以及来自干扰源的信号的复合信号。 接收机通过检测与干扰源或期望的发射机相关的标识,确定主要干扰源并获得由干扰源以及期望的发射机完成的信号加扰知识。 该知识被用于确定用于组合在第一和第二时间间隔中接收的复合信号的系数,以便以最大化与期望信号相关联的SNR或完全消除主要干扰的方式来恢复期望信号。
    • 8. 发明申请
    • WIRELESS TERMINAL METHODS AND APPARATUS FOR USE IN WIRELESS COMMUNICATIONS SYSTEMS SUPPORTING DIFFERENT SIZE FREQUENCY BANDS
    • 无线终端方法和装置在无线通信系统中的应用支持不同大小的频段
    • WO2006044487A2
    • 2006-04-27
    • PCT/US2005036736
    • 2005-10-12
    • FLARION TECHNOLOGIES INCLAROIA RAJIVLI JUNYIPARIZHSKY VLADIMIR
    • LAROIA RAJIVLI JUNYIPARIZHSKY VLADIMIR
    • H04J11/00
    • H04L27/2601
    • More efficient utilization of available bandwidth is implemented in an OFDM wireless communication system. The partitions of bandwidth may be of different sizes and may be different from the original system design parameters. Basic system structure such as the number of tones used and the number of OFDM symbol times in a slot is maintained throughout the system. Bandwidth is varied by adjusting the inter-tone spacing or bandwidth associated with a single tone. As the inter-tone spacing is increased, the OFDM symbol transmission time is decreased following an inverse proportional relationship. A wireless communications device, during a first period of time transmits signals using a first uplink frequency band of a first number of uniformly distributed tones and during a second period of time transmits signals using a second uplink frequency band of a second number of uniformly distributed tones, the second number being the same as the first number, the second frequency band being wider than the first frequency band.
    • 在OFDM无线通信系统中实现可用带宽的更有效利用。 带宽分区可能具有不同的大小,并且可能与原始系统设计参数不同。 在整个系统中保持基本系统结构,例如所使用的音调数量和时隙中的OFDM符号时间的数量。 通过调整与单个音调相关联的音调间距或带宽来改变带宽。 随着色间间隔的增加,OFDM符号传输时间按照反比例关系减小。 无线通信设备在第一时段期间使用第一数量均匀分布的音调的第一上行链路频带发送信号,并且在第二时段期间使用第二数量均匀分布的音调的第二上行链路频带来发送信号 第二个数字与第一个数字相同,第二个频带宽于第一个频带。
    • 9. 发明申请
    • POWER AMPLIFICATION IN MULTICARRIER TRANSMITTERS
    • 多功能发射机的功率放大
    • WO0223848A3
    • 2003-02-13
    • PCT/US0128313
    • 2001-09-11
    • FLARION TECHNOLOGIES INCLAROIA RAJIVLI JUNYI
    • LAROIA RAJIVLI JUNYI
    • H04L27/26
    • H04L27/2607H04L27/2637
    • Method and apparatus for generating and transmitting frequency division multiplexed signals are described. Each transmitted FDM signal is generated by combining, e.g., multiplexing, a plurality of individual analog subcarrier signals together. Individual analog subcarrier signals are generated by processing one or more digital signals, e.g., symbols plus a cyclic prefix for each symbol, corresponding to the subcarrier to generate an analog subcarrier signal there from. In one embodiment, digital signals for each individual subcarrier are received and processed in parallel. Each generated analog subcarrier signal is subject to amplification, e.g., power amplification, prior to being combined with the other analog subcarrier signals. Power amplified subcarrier signals are generated in parallel, or, alternatively, some of the circuitry used to generate one subcarrier signal can be used on a time shared basis to generate one or more additional subcarrier signals with the results being buffered prior to being combined to form thetransmitted signal. The transmission signal generated by combining the previously amplified analog subcarrier signals can be subjected to further amplification prior to transmission. Amplifiers with less dynamic range can normally be used to amplify individual subcarrier signals than is required to amplify a transmission signal generated from individual subcarrier signals which have not been subjected to power amplification. Filters may be used to compensate for or correct signal distortions. A cyclic prefix incorporated into subcarrier signals is designed to be of sufficient length that is covers delays introduced by filters in the individual subcarrier signal paths and common signal path.
    • 描述用于产生和发送频分复用信号的方法和装置。 通过将多个单独的模拟副载波信号组合在一起来产生每个发送的FDM信号。 通过处理一个或多个数字信号(例如,符号加上每个符号的循环前缀,对应于子载波)以产生模拟副载波信号来产生各个模拟副载波信号。 在一个实施例中,用于每个单独子载波的数字信号被并行地接收和处理。 在与其他模拟副载波信号组合之前,每个产生的模拟副载波信号经受放大,例如功率放大。 功率放大副载波信号是并行产生的,或者替代地,用于产生一个子载波信号的电路中的一些可以在时间共享的基础上使用以产生一个或多个附加子载波信号,其结果在被组合形成之前被缓冲 传输信号。 通过组合先前放大的模拟副载波信号产生的发送信号可以在发送之前进行进一步的放大。 具有较小动态范围的放大器通常可用于放大单个子载波信号,而不是放大从未经过功率放大的各个副载波信号产生的传输信号所需的信号。 滤波器可用于补偿或纠正信号失真。 合并到子载波信号中的循环前缀被设计为具有足够的长度,其覆盖由各个子载波信号路径和公共信号路径中的滤波器引入的延迟。
    • 10. 发明申请
    • BEACON SIGNALING IN A WIRELESS SYSTEM
    • 无线系统中的信号信号
    • WO2004019529A8
    • 2009-01-15
    • PCT/US0326626
    • 2003-08-25
    • FLARION TECHNOLOGIES INCLAROIA RAJIVLANE FRANK ALI JUNYI
    • LAROIA RAJIVLANE FRANK ALI JUNYI
    • H04B7/005H04B7/12H04L27/26H04W52/34H04W52/42H04W56/00
    • H04W52/34H04B7/12H04L27/2662H04W52/42
    • A few high power tones (1506, 1508) used for synchronization and/or other purposes are transmitted in a FDM system (400) during a period of time into a region, e.g., sector (SECTOR 1-Y) of a cell (Cell 1-N), e.g., a symbol transmission time period. During normal data transmission symbol periods, signals are transmitted using at least 10 tones, e.g., per symbol time. Less than 5 high power signals (1506, 1508) are transmitted in a symbol time with at least 80% the maximum total transmitter power used for transmitting into said region being allocated to the high power signals where the maximum total transmitter power is determined from a period of time which may includes one or more data and/or high power tone (1506, 1508) transmission periods. When the high power tones (1506, 1508) are transmitted at most 20% of transmitter power used for transmitting into the region is available for transmitting other tones with the power normally being distributed among multiple tones. Often some tones, which would be transmitted in a symbol time go unused during transmission of the high power signals (1506, 1508).
    • 用于同步和/或其他目的的几个高功率音调(1506,1508)在一段时间内在FDM系统(400)中传送到诸如单元(Cell(SECTOR 1-Y))的区域 1-N),例如符号传输时间段。 在正常数据传输符号周期期间,使用至少10个音调(例如,每个符号时间)发送信号。 少于5个高功率信号(1506,1508)以符号时间传输,其中至少80%用于发射到所述区域中的最大总发射机功率被分配给高功率信号,其中最大总发射机功率由 可以包括一个或多个数据和/或高功率音调(1506,1508)传输周期的时间段。 当发送高功率音调(1506,1508)时,用于发送到该区域的发射机功率的最多20%可用于发送其他音调,其中功率通常在多个音调之间分配。 通常,在传输高功率信号(1506,1508)期间将以符号时间传输的一些音调将不被使用。