公开(公告)号：JP2013211885A

公开(公告)日：2013-10-10

申请号：JP2013104951

申请日：2013-05-17

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： LING FUYUN

IPC: H04B1/707 ,  H04B1/7115 ,  H04B7/005 ,  H04J13/12 ,  H04L25/02 ,  H04Q7/38

CPC classification number: H04B1/7115 ,  H04B2201/70703 ,  H04L25/0214

Abstract: PROBLEM TO BE SOLVED: To provide a method of producing accurate channel estimates which does not require increased pilot signal strength.SOLUTION: I and Q component samples are sent to a Walsh despreader 206, and the Walsh despreader 206 uses the same Walsh function Wused to spread fundamental channels in a Walsh spreader. The Walsh despreader 206 produces I and Q components for a decovered fundamental channel. I and Q component signals are also input to a pilot channel estimator 218A, to produce filtered Pilot I and Pilot Q samples. The pilot channel estimator 218A is shown with an input of a Walsh code W, and this Wcorresponds to Wused to spread a pilot channel in the Walsh spreader.

Abstract translation: 要解决的问题：提供一种产生不需要增加的导频信号强度的精确信道估计的方法。解决方案：将I和Q分量样本发送到沃尔什解扩器206，并且沃尔什解扩器206使用相同的沃尔什函数Wused 在沃尔什扩张器中传播基本渠道。 沃尔什解扩器206产生用于解除基本信道的I和Q分量。 I和Q分量信号也被输入到导频信道估计器218A，以产生经滤波的导频I和导频Q采样。 导频信道估计器218A被示出为具有沃尔什码W的输入，并且该W对应于被Wused扩散在沃尔什扩展器中的导频信道。

公开(公告)号：JP2011072001A

公开(公告)日：2011-04-07

申请号：JP2010232575

申请日：2010-10-15

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： LING FUYUN ,  ODENWALDER JOSEPH P

IPC: H03M13/27 ,  H04B1/707 ,  H04B7/06 ,  H04B7/26 ,  H04B14/04 ,  H04L1/00 ,  H04L1/06 ,  H04L1/08 ,  H04L27/26

CPC classification number: H04L1/0071 ,  H04B7/0604 ,  H04L1/06 ,  H04L1/08 ,  H04L5/0023 ,  H04L5/0042 ,  H04L5/0044 ,  H04L5/0083 ,  H04L27/2602

Abstract: PROBLEM TO BE SOLVED: To provide a demultiplexer for a channel interleaver in a communication system using either of or both of multiple carriers and transmitter diversity. SOLUTION: The demultiplexer 402 includes a distribution module that distributes data bits in succession to successive transmitter antennas; and a switching module coupled to the distribution module. The distribution module routes one data bit to each antenna such that no data bit is routed to the same antenna as the previous data bit. The switching module controls the distribution module to skip an antenna once each time a predefined number of data bits has been routed. Alternatively, the switching module may control the distribution module to repeat an antenna once each time a predefined number of data bits has been routed. The transmitter antennas may, in the alternative, be different carrier frequency bands. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种使用多载波和发射机分集中的一个或两者的通信系统中的信道交织器的解复用器。 解决方案：解复用器402包括分配模块，其将数据位相继分配给连续的发射机天线; 以及耦合到所述分配模块的开关模块。 分配模块将一个数据位路由到每个天线，使得没有数据位被路由到与之前的数据位相同的天线。 每次预定数量的数据位被路由时，切换模块控制分配模块跳过天线一次。 或者，切换模块可以每次预定数量的数据位被路由时，控制分配模块重复天线一次。 替代地，发射机天线可以是不同的载波频带。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011211722A

公开(公告)日：2011-10-20

申请号：JP2011106480

申请日：2011-05-11

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： VIJAYAN RAJIV ,  KHANDEKAR AAMOD ,  LING FUYUN ,  WALKER KENT ,  MURALI RAMASWAMY

IPC: H04J11/00 ,  H04H20/00 ,  H04J3/24 ,  H04J4/00 ,  H04L1/00 ,  H04L5/02 ,  H04L5/06 ,  H04L25/02 ,  H04L27/26 ,  H04W4/06 ,  H04W28/06 ,  H04W72/04

CPC classification number: H04W52/0209 ,  H04B7/12 ,  H04L1/0057 ,  H04L1/0065 ,  H04L1/0071 ,  H04L1/0083 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/06 ,  H04L25/0224 ,  H04L27/2602 ,  H04N21/2383 ,  H04N21/4382 ,  H04N21/6112 ,  H04W4/06 ,  H04W28/06 ,  H04W72/04 ,  Y02D70/00 ,  Y02D70/166 ,  Y02D70/168 ,  Y02D70/442

Abstract: PROBLEM TO BE SOLVED: To provide a technique for multiplexing and transmitting multiple data streams.SOLUTION: Transmission of the multiple data streams occurs in "super-frames". Each super-frame has a predetermined time duration and is further divided into multiple (e.g., four) frames. Each data block for each data stream is outer encoded to generate a corresponding code block. Each code block is partitioned into multiple subblocks, and each data packet in each code block is inner encoded and modulated to generate modulation symbols for the packet. The multiple subblocks for each code block are transmitted in the multiple frames of the same super-frame, one subblock per frame. Each data stream is allocated a number of transmission units in each super-frame and is assigned specific transmission units to achieve efficient packing.

Abstract translation: 要解决的问题：提供一种复用和传输多个数据流的技术。解决方案：多个数据流的传输发生在“超帧”中。 每个超帧具有预定的持续时间并进一步分为多个（例如，四个）帧。 每个数据流的每个数据块被外部编码以生成相应的代码块。 每个码块被划分成多个子块，并且每个码块中的每个数据分组被内部编码和调制以产生分组的调制符号。 每个码块的多个子块在相同超帧的多个帧中传送，每帧一个子块。 每个数据流在每个超帧中被分配多个传输单元，并被分配特定的传输单元以实现有效的打包。

公开(公告)号：JP2011066886A

公开(公告)日：2011-03-31

申请号：JP2010204812

申请日：2010-09-13

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： CHUNG SEONG TAEK ,  GUPTA ALOK ,  LING FUYUN ,  MURTHY VINAY

IPC: H04J11/00 ,  H04J13/00

CPC classification number: H03J7/04 ,  H03J1/0083

Abstract: PROBLEM TO BE SOLVED: To provide a method for performing frequency control using dual-loop automatic frequency control (AFC). SOLUTION: A dual-loop AFC includes an inner loop that corrects short-term frequency variations due to the Doppler effect or the like, and an outer loop that corrects long-term frequency variations due to component tolerance and temperature variations. In one design, a first inner loop is performed for frequency control of a first system of a broadcast system or the like, a second inner loop is performed for frequency control of a second system of a cellular system or the like, and at least one outer loop is performed in order to adjust a reference frequency used to receive the first and second systems. Each inner loop estimates and corrects the frequency error in an input signal for associated system. Also, each inner loop may be made to be operable when receiving the system. The reference frequency may be used for frequency down conversion, sampling and/or other purposes. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种使用双回路自动频率控制（AFC）进行频率控制的方法。 解决方案：双回路AFC包括内环，其校正由于多普勒效应等引起的短期频率变化，以及校正由于部件容差和温度变化引起的长期频率变化的外环。 在一种设计中，对广播系统等的第一系统进行频率控制的第一内部循环，对蜂窝系统等的第二系统进行频率控制的第二内部循环，以及至少一个 执行外部循环以便调整用于接收第一和第二系统的参考频率。 每个内循环估计并校正相关系统的输入信号中的频率误差。 此外，每个内循环可以在接收系统时可操作。 参考频率可用于降频转换，采样和/或其他目的。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011050064A

公开(公告)日：2011-03-10

申请号：JP2010211239

申请日：2010-09-21

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： LING FUYUN ,  SINDHUSHAYANA NAGABHUSHANA T ,  ESTEVES EDUARDO A S

IPC: H03M13/25 ,  H03M13/45 ,  H03M13/29 ,  H04B1/707 ,  H04B1/7097 ,  H04L1/20

CPC classification number: H03M13/6337 ,  H03M13/2957 ,  H03M13/658 ,  H04L1/20

Abstract: PROBLEM TO BE SOLVED: To provide a telecommunications receiver system for accurately decoding a received composite signal having a data signal component and a pilot signal component.
SOLUTION: A receiver system includes a first circuit for receiving a composite signal and extracting a pilot signal and a data signal from the received composite signal. A second circuit calculates a log-likelihood ratio as a function of a channel estimate based on the pilot signal. A third circuit scales the log-likelihood ratio by a predetermined log-likelihood ratio scaling factor and provides an accurate log-likelihood value in response thereto. A fourth circuit decodes the received composite signal based on the accurate log-likelihood value and the data signal.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于对具有数据信号分量和导频信号分量的接收复合信号进行精确解码的电信接收机系统。 解决方案：接收机系统包括用于接收复合信号并从接收的复合信号中提取导频信号和数据信号的第一电路。 第二电路基于导频信号计算作为信道估计的函数的对数似然比。 第三电路将对数似然比缩小预定的对数似然比缩放因子，并响应于此提供准确的对数似然值。 第四电路基于准确的对数似然值和数据信号对接收到的复合信号进行解码。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010226734A

公开(公告)日：2010-10-07

申请号：JP2010098861

申请日：2010-04-22

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： MURALI RAMASWAMY ,  LING FUYUN ,  VIJAYAN RAJIV ,  WALKER KENT G ,  MANTRAVADI ASHOK ,  SUBRAMANIAM ANAND D

IPC: H04W4/06 ,  H04L12/18 ,  H04L12/56 ,  H04W72/04 ,  H04W74/04 ,  H04W88/08

CPC classification number: H04L5/0041 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0048 ,  H04L12/189 ,  H04W72/005

Abstract: PROBLEM TO BE SOLVED: To provide a method for performing local transmission and wide area transmission in a wireless broadcast communication network. SOLUTION: In order to perform broadcast communications of transmission of different type having a hierarchy with different communication-possible range in a wireless broadcast communication network, each base station processes data for the wide area transmission according to a first mode (or coding scheme and modulation scheme) (S812), and processes data for the local transmission according to a second mode (S813). Based on each desired communication-possible range for the wide area transmission and the local transmission, each of the first mode and the second mode is selected. In the same way, each base station multiplexes the data for the local transmission with the data for the wide area transmission without overlapping partially, and carries out broadcast communication for the multiplexed data. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于在无线广播通信网络中执行本地传输和广域传输的方法。 解决方案：为了在无线广播通信网络中执行具有不同通信可能范围的层次的不同类型的传输的广播通信，每个基站根据第一模式（或编码）处理广域传输的数据 方案和调制方案）（S812），并根据第二模式处理本地传输的数据（S813）。 基于用于广域传输和本地传输的每个期望的通信可能范围，选择第一模式和第二模式中的每一个。 以相同的方式，每个基站将用于本地传输的数据与广域传输的数据进行多路复用，而不重叠，部分地进行多路复用数据的广播通信。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010220238A

公开(公告)日：2010-09-30

申请号：JP2010106699

申请日：2010-05-06

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： GUPTA ALOK K ,  LING FUYUN

IPC: H04J11/00 ,  H04L27/06

CPC classification number: H04L27/2665 ,  H04L7/007 ,  H04L27/2656 ,  H04L27/2657 ,  H04L27/2663 ,  H04L27/2675 ,  H04L27/2695

Abstract: PROBLEM TO BE SOLVED: To provide a method and apparatus for initial frequency acquisition in a wireless communication network. SOLUTION: In an aspect, the method for initial frequency acquisition includes the steps of: receiving a stream of input samples from a transmitter; determining an estimate for a frequency offset associated with the transmitter and the receiver based on the received input samples; and compensating for the frequency offset to achieve an initial frequency acquisition. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于在无线通信网络中初始频率获取的方法和装置。 解决方案：一方面，用于初始频率获取的方法包括以下步骤：从发射机接收输入样本流; 基于所接收的输入样本确定与所述发射机和所述接收机相关联的频率偏移的估计; 并补偿频率偏移以实现初始频率采集。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2011176837A

公开(公告)日：2011-09-08

申请号：JP2011057894

申请日：2011-03-16

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： LING FUYUN

IPC: H04J13/16 ,  H04B1/7115 ,  H04B7/005 ,  H04L1/00 ,  H04L25/02 ,  H04Q7/38 ,  H04W88/08

CPC classification number: H04B1/7115 ,  H04B2201/70703 ,  H04L25/0214

Abstract: PROBLEM TO BE SOLVED: To provide apparatuses for a transmitter and a receiver, which enhance the performance of the coherent demodulation of a system, by utilizing non-pilot subchannels, so as to enhance the accuracy of evaluations of amplitude and phase noise inherent in a transmission channel.
SOLUTION: An amplitude and phase evaluation method in a wireless communication system is achieved by utilizing the corrected and received data on a fundamental channel so as to enhance a pilot channel evaluation. The amplitude and phase evaluation method in a wireless communication system is subsequently utilized by a dot product module for the demodulation of a supplementary data channel.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：通过利用非导频子信道来提供增强系统的相干解调性能的发射机和接收机的装置，以提高幅度和相位噪声的评估精度 固有的传输通道。 解决方案：通过在基本信道上利用校正和接收的数据来实现无线通信系统中的幅度和相位评估方法，以便增强导频信道评估。 无线通信系统中的振幅和相位评估方法随后由点积模块用于解调辅助数据信道。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010273364A

公开(公告)日：2010-12-02

申请号：JP2010156077

申请日：2010-07-08

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： VRCELJ BOJAN ,  MANTRAVADI ASHOK ,  LING FUYUN ,  VIJAYAN RAJIV ,  WANG MICHAEL MAO

IPC: H04J11/00

CPC classification number: H04L27/2662 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/0216 ,  H04L25/022 ,  H04L25/0228 ,  H04L27/261 ,  H04L27/265 ,  H04L27/2665 ,  H04L27/2679

Abstract: PROBLEM TO BE SOLVED: To provide a method of positioning a collection window of a Fourier transform function. SOLUTION: A first orthogonal frequency division multiplexing (OFDM) symbol and a second OFDM symbol are received. The first OFDM symbol includes a plurality of symbols. The first OFDM symbol is characterized by at least two of the following: a delay spread, a first arriving path (FAP), or a last arriving path (LAP). A channel location is estimated from a channel impulse response. A point relating to the channel location is selected. A beginning of the collection window is positioned for the second OFDM symbol at the selected point. Alternatively, the point is selected at a first location relating to the channel location by using a first algorithm if a delay spread is less than a predetermined length. The selected point is chosen at a second location relating to the channel location by using a second algorithm if the delay spread is greater than the predetermined length. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种定位傅立叶变换函数的收集窗口的方法。 解决方案：接收第一正交频分复用（OFDM）符号和第二OFDM符号。 第一OFDM符号包括多个符号。 第一OFDM符号的特征在于以下至少两个：延迟扩展，第一到达路径（FAP）或最后到达路径（LAP）。 从信道脉冲响应估计信道位置。 选择与频道位置相关的一点。 收集窗口的开始位于所选择的第二个OFDM符号。 或者，如果延迟扩展小于预定长度，则通过使用第一算法在与频道位置有关的第一位置处选择该点。 如果延迟扩展大于预定长度，则通过使用第二算法在与频道位置相关的第二位置处选择所选择的点。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010213320A

公开(公告)日：2010-09-24

申请号：JP2010098860

申请日：2010-04-22

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： MURALI RAMASWAMY ,  LING FUYUN ,  VIJAYAN RAJIV ,  WALKER KENT G ,  MANTRAVADI ASHOK ,  SUBRAMANIAM ANAND D

IPC: H04W72/12 ,  H04L12/18 ,  H04L12/56 ,  H04W4/06 ,  H04W72/04 ,  H04W74/04 ,  H04W88/08

CPC classification number: H04L5/0041 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0048 ,  H04L12/189 ,  H04W72/005

Abstract: PROBLEM TO BE SOLVED: To broadcast different types of transmission having different tiers of coverage in a wireless broadcast network. SOLUTION: Each base station processes data for a wide area transmission in accordance with a first mode (or coding scheme and modulation scheme) to generate data symbols for the wide area transmission and processes data for a local transmission in accordance with a second mode for the local transmission. The first and second modes are based on the coverage of for wide-area and local transmissions, respectively. The base station also generates pilots and overhead information for local and wide area transmissions. The data, pilots, and overhead information for local and wide area transmissions are multiplexed onto their transmission spans, which may be different sets of frequency subbands, different time segments, or different groups of subbands in different time segments. More than two different types of transmission may also be multiplexed and broadcast. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：广播在无线广播网络中具有不同层次的不同类型的传输。 解决方案：根据第一模式（或编码方案和调制方案），每个基站处理用于广域传输的数据，以生成用于广域传输的数据符号，并根据第二模式处理本地传输的数据 模式为本地传输。 第一和第二模式分别基于广域和本地传输的覆盖范围。 基站还生成用于本地和广域传输的导频和开销信息。 用于本地和广域传输的数据，导频和开销信息被复用到它们的传输跨度，其可以是不同时间段中的不同组的频率子带，不同的时间段或不同的子带组。 多于两种不同类型的传输也可以被复用和广播。 版权所有（C）2010，JPO＆INPIT