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1. 发明申请

WO2007120336A2 APPARATUS AND METHODS FOR TIMING RECOVERY IN A WIRELESS TRANSCEIVER 审中-公开
标题翻译：用于在无线收发器中恢复时间的装置和方法
公开(公告)号：WO2007120336A2
公开(公告)日：2007-10-25
申请号：PCT/US2006/062129
申请日：2006-12-14
申请人： QUALCOMM INCORPORATED , WANG, Michael Mao , VRCELJ, Bojan , LING, Fuyun , VIJAYAN, Rajiv
发明人： WANG, Michael Mao , VRCELJ, Bojan , LING, Fuyun , VIJAYAN, Rajiv
CPC分类号： H04L27/2656 , H04L27/261 , H04L27/2675
摘要： Apparatus and methods for use in a wireless communication system are disclosed for recovery of timing tracking in a device, such as a wireless transceiver, after decoding errors occur due to incorrect timing tracking. In particular, the disclosed methods and apparatus recover timing tracking by monitoring a decoded signal in the transceiver for decoding errors occurring during a first frame, determining whether a number of decoding errors is greater than a predetermined amount, reacquiring a first pilot channel at a start of a subsequently received second frame when the number of decoding errors is determined to be greater than the predetermined amount, and resetting timing tracking of the transceiver based on the reacquired first pilot channel.
摘要翻译：在无线通信系统中使用的装置和方法被公开用于在诸如无线收发器的设备中恢复定时跟踪，在由于不正确的定时跟踪而导致解码错误之后。具体地，所公开的方法和装置通过监视收发器中的解码信号来恢复定时跟踪，以解码在第一帧期间发生的错误，确定解码错误的数量是否大于预定量，开始时重新获取第一导频信道当确定解码错误的数量大于预定量时，随后接收到的第二帧，并且基于重新获取的第一导频信道来重置收发信机的定时跟踪。

2. 发明申请

WO2007014360A2 SYSTEM AND METHOD FOR A FORWARD LINK ONLY PHYSICAL LAYER 审中-公开
标题翻译：仅用于前向链路物理层的系统和方法
公开(公告)号：WO2007014360A2
公开(公告)日：2007-02-01
申请号：PCT/US2006/029621
申请日：2006-07-27
申请人： QUALCOMM INCORPORATED , LING, Fuyun , CHARI, Murali Ramaswamy , VIJAYAN, Rajiv , MANTRAVADI, Ashok , GUPTA, Alok Kumar , MUKKAVILLI, Krishna Kiran , WANG, Michael Mao , VRCELJ, Bojan , COLLINS, Bruce
发明人： LING, Fuyun , CHARI, Murali Ramaswamy , VIJAYAN, Rajiv , MANTRAVADI, Ashok , GUPTA, Alok Kumar , MUKKAVILLI, Krishna Kiran , WANG, Michael Mao , VRCELJ, Bojan , COLLINS, Bruce
IPC分类号： H04L12/56
CPC分类号： H04L1/0002 , H04L1/0017 , H04L1/0041 , H04L1/0075 , H04L5/0007 , H04L5/0048 , H04L27/2613 , H04L27/2647 , H04L27/2662 , H04L69/32 , H04W48/08 , H04W72/005 , H04W80/00 , H04W88/02 , H04W92/10
摘要： Systems and methods are provided for processing forward link only (FLO) signals. A device receives a FLO signal, processes a TDM pilot comprising a TDM Pilot 1, a TDM Pilot 2, a WIC, a LIC, a Transition Pilot Channel, and a Positioning Pilot, from the FLO signal, processes an overhead information symbol (OIS) comprising a wide-area OIS and a local-area OIS, from the FLO signal, processes an FDM pilot comprising a wide-area FDM pilot and a local-area FDM pilot, from the FLO signal; and processes data comprising wide-area data and local-area data, from the FLO signal.
摘要翻译：提供系统和方法用于仅处理前向链路（FLO）信号。设备接收FLO信号，从FLO信号处理包括TDM导频1，TDM导频2，WIC，LIC，转换导频信道和定位导频的TDM导频，处理开销信息符号（OIS ）包括来自FLO信号的广域OIS和局域OIS，从FLO信号处理包括广域FDM导频和本地FDM导频的FDM导频; 并从FLO信号处理包括广域数据和局域数据的数据。

3. 发明申请

WO2006099063A1 APPARATUS AND METHOD FOR DETERMINING SLEEP CLOCK TIMING 审中-公开
标题翻译：用于确定休眠时钟时序的装置和方法
公开(公告)号：WO2006099063A1
公开(公告)日：2006-09-21
申请号：PCT/US2006/008456
申请日：2006-03-08
申请人： QUALCOMM INCORPORATED , WANG, Michael Mao , LING, Fuyun , VIJAYAN, Rajiv
发明人： WANG, Michael Mao , LING, Fuyun , VIJAYAN, Rajiv
IPC分类号： H04B1/16
CPC分类号： H04W52/029 , Y02D70/00
摘要： Apparatus and methods for estimating the frequency of a sleep or slow clock by selectively utilizing an estimated sleep clock frequency and an estimated change in the sleep clock frequency. The disclosed apparatus includes a sleep clock frequency estimator to output a fast clock derived sleep clock frequency estimate and a sleep clock change frequency estimator to output an estimate of a change in frequency of the sleep clock. The apparatus further includes a combiner that weights at least one of the fast clock derived sleep clock frequency estimate to obtain a weighted sleep clock frequency estimate and the estimate of the change in frequency of the sleep clock to obtain a weighted estimate of the change in frequency of the sleep clock. The combiner also determines a new estimate of the sleep clock frequency using at least one of the weighted sleep clock frequency estimate and the weighted estimate of the change in frequency of the sleep clock. Complementary methods are also disclosed.
摘要翻译：通过选择性地利用估计的睡眠时钟频率和睡眠时钟频率的估计改变来估计睡眠或慢时钟的频率的装置和方法。所公开的装置包括：睡眠时钟频率估计器，用于输出快速时钟导出的睡眠时钟频率估计;以及睡眠时钟变化频率估计器，用于输出睡眠时钟的频率变化的估计。该装置还包括组合器，其对至少一个快速时钟导出的睡眠时钟频率估计进行加权以获得加权睡眠时钟频率估计和睡眠时钟的频率变化的估计，以获得频率变化的加权估计的睡眠时钟。组合器还使用加权睡眠时钟频率估计和睡眠时钟的频率变化的加权估计中的至少一个来确定睡眠时钟频率的新估计。还公开了互补方法。

4. 发明申请

WO2006015268A2 SYSTEM AND METHOD FOR TIME DIVERSITY 审中-公开
标题翻译：时间多样性的系统与方法
公开(公告)号：WO2006015268A2
公开(公告)日：2006-02-09
申请号：PCT/US2005/027104
申请日：2005-07-29
申请人： QUALCOMM INCORPORATED , WANG, Michael Mao , LING, Fuyun , MURALI, Ramaswamy , VIJAYAN, Rajiv
发明人： WANG, Michael Mao , LING, Fuyun , MURALI, Ramaswamy , VIJAYAN, Rajiv
IPC分类号： H04L1/00
CPC分类号： H04L1/0071 , H03M13/27 , H03M13/271 , H03M13/2757 , H03M13/276 , H03M13/2771 , H04L1/00 , H04L1/0041 , H04L1/0066 , H04L1/007 , H04L5/0007 , H04L5/0042 , H04L5/0044 , H04L5/0048 , H04L5/0083 , H04L25/0226 , H04L27/2607 , H04L27/261 , H04L27/2626 , H04L27/2656 , H04L27/2662
摘要： A system and method for time diversity uses interleaving. To simplify the operation at both transmitters and receivers, a formula can be used to determine the mapping from slot to interlace at a given OFDM symbol time.
摘要翻译：用于时间分集的系统和方法使用交织。为了简化发射机和接收机的操作，可以使用公式来确定在给定OFDM符号时间从时隙到交错的映射。

5. 发明申请

WO2011113009A1 GAIN CONTROL METRIC COMPUTATION IN A WIRELESS REPEATER 审中-公开
标题翻译：无线重发器增益控制公制计算
公开(公告)号：WO2011113009A1
公开(公告)日：2011-09-15
申请号：PCT/US2011/028210
申请日：2011-03-11
申请人： QUALCOMM INCORPORATED , WANG, Michael Mao , GORE, Dhananjay Ashok , BARRIAC, Gwendolyn Denise
发明人： WANG, Michael Mao , GORE, Dhananjay Ashok , BARRIAC, Gwendolyn Denise
IPC分类号： H04B7/155
CPC分类号： H04B7/15585 , H04B7/15535
摘要： A wireless repeater includes a gain control metric computation block to compute a gain control metric for use in controlling the variable gain of the repeater. The gain control metric is computed by downsampling the gain control input signal to the gain control metric computation block and also downsampling the computed correlation and normalization terms. The gain control metric may be further enhanced by filtering the computed metric values using linear or non-linear filtering.
摘要翻译：无线中继器包括增益控制度量计算块，用于计算用于控制中继器的可变增益的增益控制度量。通过将增益控制输入信号下采样到增益控制度量计算块来计算增益控制度量，并且还对所计算的相关和归一化项进行下采样。可以通过使用线性或非线性滤波来过滤所计算的度量值来进一步增强增益控制度量。

6. 发明申请

WO2008039952A1 METHODS AND APPARATUS FOR CONFIGURING A PILOT SYMBOL IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：用于在无线通信系统中配置引导符号的方法和装置
公开(公告)号：WO2008039952A1
公开(公告)日：2008-04-03
申请号：PCT/US2007/079787
申请日：2007-09-27
申请人： QUALCOMM INCORPORATED , WANG, Michael Mao
发明人： WANG, Michael Mao
IPC分类号： H04L27/26
CPC分类号： H04L27/2613 , H03M13/271 , H03M13/2771 , H04L1/0041 , H04L1/0066 , H04L1/0069 , H04L1/0071 , H04L5/0007 , H04L5/0048 , H04L5/0083 , H04L25/0226 , H04L27/2626
摘要： Methods and apparatus for constructing a pilot symbol for a communication frame transmitted in a wireless communication system, such as an OFDM system, are disclosed. In particular, the methods and apparatus generate at least one pseudo-random noise sequence having at least a predetermined length, where the at least one pseudo-random noise sequence represents a system configuration of a wireless system. A time domain symbol sequence is modulated with the at least one pseudo-random noise sequence to create a timing acquisition pilot symbol. The modulated acquisition pilot symbol is further masked to a prescribed frequency profile and placed in a frame for wireless transmission. Accordingly, different system configurations can be communicated from a transmitter to a receiver with the acquisition pilot symbol modulated with correspondingly different pseudo-random noise sequences, while affording low complexity required to process the acquisition pilot symbol and a minimum peak to average power ratio when using QPSK modulation.
摘要翻译：公开了在诸如OFDM系统的无线通信系统中发送的用于构建通信帧的导频符号的方法和装置。特别地，所述方法和装置产生至少一个具有至少预定长度的伪随机噪声序列，其中至少一个伪随机噪声序列表示无线系统的系统配置。利用至少一个伪随机噪声序列调制时域符号序列以产生定时获取导频符号。调制获取导频符号被进一步屏蔽到规定的频率分布，并被放置在用于无线传输的帧中。因此，不同的系统配置可以从发射机传送到接收机，其中采集导频符号用对应的不同的伪随机噪声序列进行调制，同时提供处理采集导频符号所需的低复杂度和使用时的最小峰均功率比 QPSK调制。

7. 发明申请

WO2012170043A1 ECHO CANCELLATION REPEATER USING AN INSERTED PILOT WITH GAIN-BASED POWER LEVEL CONTROL SCHEME 审中-公开
标题翻译：使用基于增益的功率电平控制方案的插入式导频的ECHO取消重复器
公开(公告)号：WO2012170043A1
公开(公告)日：2012-12-13
申请号：PCT/US2011/043430
申请日：2011-07-08
申请人： QUALCOMM INCORPORATED , WANG, Michael Mao , BARRIAC, Gwendolyn Denise , GORE, Dhananjay Ashok , TIAN, Tao
发明人： WANG, Michael Mao , BARRIAC, Gwendolyn Denise , GORE, Dhananjay Ashok , TIAN, Tao
IPC分类号： H04B7/155
CPC分类号： H04B7/15585
摘要： A device for generating a pilot signal for use in a wireless repeater where the pilot signal is added to a transmit signal for transmission includes a pilot power control unit configured to set a power level of the pilot signal as a function of a gain of the repeater and a power level of the transmit signal, where the function comprises a linear or non-linear function. In one embodiment, the operation of the repeater may be divided into gain regions and the inserted pilot power is controlled according to the different gain regions of the repeater. When the repeater gain is low, the pilot power may be set greater than the transmit power to ensure there is sufficient signal to use for channel estimation. When the repeater gain is in steady state, the pilot power may be set to be lower than the transmit power to avoid interference.
摘要翻译：一种用于生成用于无线中继器的导频信号的装置，其中导频信号被添加到用于传输的发射信号中的导频功率控制单元被配置为将导频信号的功率电平设置为中继器的增益的函数以及发射信号的功率电平，其中该功能包括线性或非线性函数。在一个实施例中，中继器的操作可以被划分为增益区域，并且插入的导频功率根据中继器的不同的增益区域被控制。当中继器增益低时，导频功率可以被设置为大于发射功率，以确保有足够的信号用于信道估计。当中继器增益处于稳定状态时，可以将导频功率设置为低于发射功率以避免干扰。

8. 发明申请

WO2009020930A2 METHOD AND APPARATUS FOR EFFICIENT SELECTION AND ACQUISITION OF SYSTEMS UTILIZING OFDM OR SC-FDM 审中-公开
标题翻译：用于有效选择和采集OFDM或SC-FDM的系统的方法和装置
公开(公告)号：WO2009020930A2
公开(公告)日：2009-02-12
申请号：PCT/US2008/072139
申请日：2008-08-04
申请人： QUALCOMM Incorporated , COOPER, Rotem , KHANDEKAR, Aamod , WANG, Michael Mao , ANANTHARAMAN, Karthik
发明人： COOPER, Rotem , KHANDEKAR, Aamod , WANG, Michael Mao , ANANTHARAMAN, Karthik
IPC分类号： H04L5/00
CPC分类号： H04L27/0012 , H04L5/0007 , H04L5/0053 , H04L27/0008 , H04L27/2613 , H04L27/2647
摘要： Techniques for performing system selection and acquisition are described. In one design, a terminal may obtain at least one system record for at least one system utilizing orthogonal frequency division multiplexing (OFDM) or single-carrier frequency division multiplexing (SC-FDM). Each system record may include system identification information for an associated system and an index for an associated acquisition record. The terminal may also obtain at least one acquisition record for the at least one system. Each acquisition record may include at least one value for at least one configurable system parameter, e.g., FFT size, cyclic prefix length, number of guard subcarriers, etc. The terminal may perform acquisition for the at least one system in accordance with the at least one system record and the at least one acquisition record. The system and acquisition records may be stored in a Preferred Roaming List (PRL) or a Most Recently Used (MRU) list.
摘要翻译：描述了执行系统选择和采集的技术。在一种设计中，终端可以使用正交频分复用（OFDM）或单载波频分复用（SC-FDM）来为至少一个系统获得至少一个系统记录。每个系统记录可以包括关联系统的系统识别信息和关联采集记录的索引。终端还可以获得至少一个系统的至少一个采集记录。每个采集记录可以包括用于至少一个可配置系统参数的至少一个值，例如FFT大小，循环前缀长度，保护子载波数量等。终端可以至少根据至少一个系统执行对至少一个系统的采集一个系统记录和至少一个采集记录。系统和采集记录可以存储在首选漫游列表（PRL）或最近使用（MRU）列表中。

9. 发明申请

WO2008039951A1 METHODS AND APPARATUS FOR TRANSMITTING A FRAME STRUCTURE IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：在无线通信系统中发送帧结构的方法和装置
公开(公告)号：WO2008039951A1
公开(公告)日：2008-04-03
申请号：PCT/US2007/079785
申请日：2007-09-27
申请人： QUALCOMM Incorporated , WANG, Michael Mao
发明人： WANG, Michael Mao
IPC分类号： H04L27/26
CPC分类号： H04L27/2613 , H03M13/271 , H03M13/2771 , H04L1/0041 , H04L1/0066 , H04L1/0069 , H04L1/0071 , H04L5/0007 , H04L5/0048 , H04L5/0083 , H04L27/2602
摘要： Method and apparatus for transmitting a wireless communication signal frame, such as an OFDM superframe. In particular, the disclosed methods and apparatus transmit a first pilot symbol in the signal frame where the symbol serves to communicate coarse timing information to a receiver. A second pilot symbol is subsequently transmitted to communicate information including network identification information concerning a wide-area network. Next, overhead information (OIS) concerning the wide-area network is then transmitted and then a third pilot symbol is transmitted to communicate information including network identification information concerning a local-area network to a receiver. By transmitting the third pilot symbol concerning the local-area network after the wide-area OIS, a receiver is allowed to acquire wide-area network timing and information and then subsequently acquire more updated local-area network timing and information and more efficiently utilize processing resources.
摘要翻译：用于发送诸如OFDM超帧的无线通信信号帧的方法和装置。具体地，所公开的方法和装置在信号帧中发送第一导频符号，其中符号用于向接收机传送粗略定时信息。随后发送第二导频符号以传送包括关于广域网的网络识别信息的信息。接下来，发送关于广域网的开销信息（OIS），然后发送第三导频符号以将包括关于局域网的网络标识信息的信息传送到接收机。通过在广域OIS之后发送关于局域网的第三导频符号，允许接收机获取广域网定时和信息，然后随后获取更新的局域网时间和信息，并更有效地利用处理资源。

10. 发明申请

WO2006069316A1 INITIAL PILOT FREQUENCY SELECTION 审中-公开
标题翻译：初步飞行员频率选择
公开(公告)号：WO2006069316A1
公开(公告)日：2006-06-29
申请号：PCT/US2005/046802
申请日：2005-12-21
申请人： QUALCOMM INCORPORATED , WANG, Michael Mao
发明人： WANG, Michael Mao
IPC分类号： H04L27/26 , H04L5/02
CPC分类号： H04L5/0048 , H04L5/0023 , H04L5/0058
摘要： The subject invention selects a starting sub-carrier frequency group for a pilot staggering sequence to facilitate in mitigating the possibility of pilot signal collisions. In one embodiment, a randomized starting sub-carrier frequency group of the pilot is utilized in a first orthogonal frequency division multiplexing (OFDM) symbol of a frame. In another embodiment, a starting pilot sub-carrier frequency group number is determined by utilizing a random number generator such as, for example, a Pseudo-Noise (PN) sequence generator, seeded by a network identification (ID) number. In this manner, the starting sub-carrier frequency group is specific to that particular network. The subject invention also provides a more scalable system through the trading of system bandwidth for coverage.
摘要翻译：本发明选择用于导频交错序列的起始子载波频率组以便于减轻导频信号冲突的可能性。在一个实施例中，在帧的第一正交频分复用（OFDM）符号中使用导频的随机起始子载波频率组。在另一个实施例中，通过利用随机数生成器（例如伪噪声（PN）序列发生器）来确定起始导频副载波频率组号，该编码发生器由网络标识（ID）号码接收。以这种方式，起始子载波频率组是特定于该特定网络的。本发明还通过用于覆盖的系统带宽的交易来提供更可扩展的系统。

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