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    Local transmission and wide area transmission in wireless broadcast communication network
    2.
    发明专利
    Local transmission and wide area transmission in wireless broadcast communication network 审中-公开
    无线广播通信网络中的本地传输和宽带传输

    公开(公告)号：JP2010226735A

    公开(公告)日：2010-10-07

    申请号：JP2010098862

    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 (S814). 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. Each base station performs the broadcast communication on the local transmission and the wide area transmission as well as pilots related to them, based on different characteristics for a multi-frequency network and a single network. 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），并且根据第二模式处理用于本地传输的数据（S814）。 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。 基于多频网络和单个网络的不同特性，每个基站在本地传输和广域传输以及与它们相关的导频上执行广播通信。 版权所有（C）2011，JPO＆INPIT

    Communication method and apparatus in system employing different transmission protocols
    5.
    发明专利
    Communication method and apparatus in system employing different transmission protocols 有权
    采用不同传输协议的系统中的通信方法和设备

    公开(公告)号：JP2011010282A

    公开(公告)日：2011-01-13

    申请号：JP2010113601

    申请日：2010-05-17

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

    Inventor： MANTRAVADI ASHOK ,  MALLADI DURGA PRASAD ,  AGRAWAL AVNEESH ,  STAMOULIS ANASTASIOS

    IPC: H04W52/04 ,  H04J11/00 ,  H04W4/06 ,  H04W52/32

    CPC classification number: H04L25/0226 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0058 ,  H04L12/189 ,  H04L25/0232 ,  H04L27/2601 ,  H04W52/32

    Abstract: PROBLEM TO BE SOLVED: To provide a method and an apparatus for channel estimation in a system employing different transmission protocols as a broadcast/multicast protocol and a unicast protocol, wherein the number of a pilot tone used for broadcast transmission is greater than the number of a pilot tone used for a unicast transmission and quality of a symbol from a broadcast transmission slot is not deteriorated even when the symbol is adjacent to a symbol from a unicast transmission slot.SOLUTION: In the method, it is determined whether a first time-slot (multicast slot) of one transmission protocol is adjacent to a second time-slot (unicast slot) of another transmission protocol or not. The number of pilot power and/or a pilot sub-carrier is/are increased for an edge symbol of the multicast slot for a purpose of channel estimation using the edge symbol.

    Abstract translation: 要解决的问题：提供一种在采用不同传输协议作为广播/多播协议和单播协议的系统中的信道估计的方法和装置，其中用于广播传输的导频音的数量大于 用于单播传输的导频音和来自广播传输时隙的符号的质量即使当符号与单播传输时隙中的符号相邻时也不会恶化。解决方案：在该方法中，确定第一时间 - 一个传输协议的时隙（多播时隙）与另一传输协议的第二时隙（单播时隙）相邻。 为了使用边缘符号的信道估计的目的，导频功率和/或导频子载波的数量增加了多播时隙的边缘符号。

    Multiplexing of w-cdma and ofdm signals in wireless communication system
    7.
    发明专利
    Multiplexing of w-cdma and ofdm signals in wireless communication system 审中-公开
    W-CDMA和OFDM信号在无线通信系统中的多路复用

    公开(公告)号：JP2011124992A

    公开(公告)日：2011-06-23

    申请号：JP2010254728

    申请日：2010-11-15

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

    Inventor： AGRAWAL AVNEESH ,  MALLADI DURGA P ,  STAMOULIS ANASTASIOS ,  MANTRAVADI ASHOK ,  MURALI RAMASWAMY

    IPC: H04W28/06 ,  H04B1/707 ,  H04J3/00 ,  H04J11/00 ,  H04L1/00 ,  H04L5/02 ,  H04L27/26 ,  H04W88/10 ,  H04W92/10

    CPC classification number: H04W88/10 ,  H04B7/2656 ,  H04L1/0083 ,  H04L5/14 ,  H04L27/2602 ,  H04W92/10 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/21 ,  Y02D70/449

    Abstract: PROBLEM TO BE SOLVED: To provide a frame structure and a transmission technique for a wireless communication system. SOLUTION: In a single frame structure 200, a superframe includes a plurality of outer frames, each of the outer frames includes a plurality of frames, and each of the frames includes a plurality of time slots. The time slots in each superframe are allocated to downlink and uplink and to different wireless techniques (for example, W-CDMA and OFDM) based on loading. Each physical channel is allocated to time slots in the frames of each outer frame in the superframe. An OFDM waveform is generated for an OFDM slot of each downlink, a W-CDMA waveform is generated for a W-CDMA slot of each downlink, and the waveforms are multiplexed on each slot. A modulation signal is generated for the multiplexed W-CDMA and OFDM waveform and transmitted on the downlink. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种用于无线通信系统的帧结构和传输技术。 解决方案：在单帧结构200中，超帧包括多个外帧，每个外帧包括多个帧，并且每个帧包括多个时隙。 每个超帧中的时隙基于加载被分配给下行链路和上行链路以及不同的无线技术（例如，W-CDMA和OFDM）。 每个物理信道被分配给超帧中的每个外帧的帧中的时隙。 为每个下行链路的OFDM时隙生成OFDM波形，为每个下行链路的W-CDMA时隙生成W-CDMA波形，并且在每个时隙上复用波形。 为多路复用的W-CDMA和OFDM波形生成调制信号并在下行链路上发送。 版权所有（C）2011，JPO＆INPIT

    Positioning of collection window of fft using time tracking information of ofdm symbol
    8.
    发明专利
    Positioning of collection window of fft using time tracking information of ofdm symbol 审中-公开
    使用OFDM符号的时间跟踪信息的FFT收集窗口的定位

    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

    Wireless communication system with configurable cyclic prefix length
    9.
    发明专利
    Wireless communication system with configurable cyclic prefix length 有权
    具有可配置循环前缀长度的无线通信系统

    公开(公告)号：JP2010263652A

    公开(公告)日：2010-11-18

    申请号：JP2010163050

    申请日：2010-07-20

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

    Inventor： AGRAWAL AVNEESH ,  MALLADI DURGA P ,  STAMOULIS ANASTASIOS ,  MANTRAVADI ASHOK ,  MURALI RAMASWAMY

    IPC: H04J11/00 ,  H04L1/00 ,  H04L5/02 ,  H04L27/26 ,  H04W88/10 ,  H04W92/10

    CPC classification number: H04W88/10 ,  H04B7/2656 ,  H04L1/0083 ,  H04L5/14 ,  H04L27/2602 ,  H04W92/10 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/21 ,  Y02D70/449

    Abstract: PROBLEM TO BE SOLVED: To provide a wireless communication system with a configurable cyclic prefix length.
    SOLUTION: To transmit data in a manner to mitigate the deleterious effects of delay spread, the expected coverage areas for multiple transmissions to be sent in multiple time slots are initially determined. Cyclic prefix lengths for these transmissions are selected based on the expected coverage areas. The cyclic prefix length for each transmission may be selected from among a set of allowed cyclic prefix lengths on the basis of the expected coverage area for that transmission, the pilot staggering used for the transmission, and so on. For example, a shorter cyclic prefix length may be selected for each local transmission, and a longer cyclic prefix length may be selected for each wide-area transmission. The selected cyclic prefix lengths may be signaled to the terminals.
    COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题：为无线通信系统提供可配置的循环前缀长度。 解决方案：为了以减轻延迟扩展的有害影响的方式发送数据，最初确定要在多个时隙中发送的多个传输的预期覆盖区域。 基于预期的覆盖区域来选择这些传输的循环前缀长度。 可以根据该传输的预期覆盖区域，用于传输的导频交错等，从一组允许的循环前缀长度中选择每个传输的循环前缀长度，等等。 例如，可以为每个本地传输选择较短的循环前缀长度，并且可以为每个广域传输选择较长的循环前缀长度。 所选择的循环前缀长度可以被发送到终端。 版权所有（C）2011，JPO＆INPIT

    Local and wide area transmission in wireless broadcast network
    10.
    发明专利
    Local and wide area transmission in wireless broadcast network 审中-公开
    无线广播网络中的本地和宽带传输

    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

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