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1652 条记录 (耗时 0.033 秒)

    Symbol vector mapping for chase-combining HARQ
    42.
    发明授权
    Symbol vector mapping for chase-combining HARQ 有权
    用于追踪合并HARQ的符号向量映射

    公开(公告)号：US09054868B2

    公开(公告)日：2015-06-09

    申请号：US13867487

    申请日：2013-04-22

    申请人： MARVELL WORLD TRADE LTD.

    发明人： Yakun Sun ,  Jungwon Lee

    IPC分类号： H04B7/02 ,  H04L1/18 ,  H04L1/06 ,  H04L27/26 ,  H04B7/04 ,  H04B7/06 ,  H04L1/00

    CPC分类号： H04L1/1812 ,  H04B7/0413 ,  H04B7/0669 ,  H04L1/0001 ,  H04L1/0618 ,  H04L1/0625 ,  H04L1/1816 ,  H04L1/1822 ,  H04L1/1825 ,  H04L1/189 ,  H04L1/1893 ,  H04L1/1896 ,  H04L27/2601 ,  H04L27/2602 ,  H04L27/2608

    摘要： A method includes mapping, based on a first antenna mapping, a plurality of symbols to a plurality of antennas for transmitting a first data unit to a receiver, mapping, based on a first subcarrier mapping, the plurality of symbols to a plurality of subcarriers for transmitting the first data unit, and determining whether the receiver has successfully received the first data unit. The method also includes, in response to determining that the receiver has not successfully received the first data unit, (i) mapping, based on a second antenna mapping, the plurality of symbols to the plurality of antennas for transmitting a second data unit to the receiver, (ii) mapping, based on a different, second subcarrier mapping, the plurality of symbols to the plurality of subcarriers for transmitting the second data unit, and (iii) causing the second subcarrier mapping to be communicated to the receiver.

    摘要翻译： 一种方法包括：基于第一天线映射将多个符号映射到用于向接收机发送第一数据单元的多个天线，基于第一子载波映射将所述多个符号映射到多个子载波，用于 发送第一数据单元，以及确定接收机是否已成功接收到第一数据单元。 该方法还包括响应于确定接收机尚未成功接收到第一数据单元，（i）基于第二天线映射将多个符号映射到多个天线，以将第二数据单元发送到 接收机，（ii）基于不同的第二子载波映射将多个符号映射到用于发送第二数据单元的多个子载波，以及（iii）使第二子载波映射传送到接收机。

    Time division multiple access (TDMA) media access control (MAC) adapted for single user, multiple user, multiple access, and/or MIMO wireless communications
    44.
    发明申请
    Time division multiple access (TDMA) media access control (MAC) adapted for single user, multiple user, multiple access, and/or MIMO wireless communications 有权
    适用于单用户，多用户，多路访问和/或MIMO无线通信的时分多址（TDMA）媒体接入控制（MAC）

    公开(公告)号：US20150146601A1

    公开(公告)日：2015-05-28

    申请号：US14607460

    申请日：2015-01-28

    申请人： BROADCOM CORPORATION

    发明人： Peiman Amini ,  Matthew James Fischer

    IPC分类号： H04W52/02 ,  H04W88/02 ,  H04W88/08 ,  H04W84/12

    CPC分类号： H04W52/0216 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0041 ,  H04L1/0065 ,  H04L1/0618 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/23

    摘要： Time division multiple access (TDMA) media access control (MAC) adapted for single user, multiple user, multiple access, and/or MIMO wireless communications. Various com systems may include smart meter stations (SMSTAs) and/or wireless stations (STAs). Appropriate coordination is made with respect to such communication devices to ensure appropriate uplink (and/or downlink) communications between a network manager or coordinator (e.g., an access point (AP)) and the SMSTAs and/or STAs. With respect to SMSTAs, the relative duration of time that such communication devices are awake and operative versus asleep (or in a reduced power and/or functionality state) can be significant. Certain implementations may include a relatively large number of such communication devices (e.g., 10s, 100s, 1000s, or more), and appropriate coordination and scheduling of such communications to/from them is made using one or more variations of TDMA signaling (e.g., including different respective service periods (SPs), communication medium access operational modes, adaptation thereof, etc.).

    摘要翻译： 适用于单用户，多用户，多路访问和/或MIMO无线通信的时分多址（TDMA）媒体接入控制（MAC）。 各种com系统可以包括智能电表（SMSTAs）和/或无线电台（STA）。 对于这样的通信设备进行适当的协调，以确保网络管理器或协调器（例如，接入点（AP））与SMSTA和/或STA之间的适当的上行链路（和/或下行链路）通信。 对于SMSTAs，这种通信设备的睡眠和睡眠（或者降低的功率和/或功能状态）的相对持续时间可能是显着的。 某些实现可以包括相对大量的这种通信设备（例如，10s，100s，1000s或更多），并且使用TDMA信令的一个或多个变体来进行向/从它们的这种通信的适当协调和调度（例如， 包括不同的相应服务周期（SP），通信介质访问操作模式，其适配等）。

    SIGNAL RECEIVING METHOD AND ELECTRONIC DEVICE
    45.
    发明申请
    SIGNAL RECEIVING METHOD AND ELECTRONIC DEVICE 有权
    信号接收方法和电子设备

    公开(公告)号：US20150110229A1

    公开(公告)日：2015-04-23

    申请号：US14520949

    申请日：2014-10-22

    申请人： Samsung Electronics Co., Ltd.

    发明人： Young-Ju KIM

    IPC分类号： H04B7/08 ,  H04L25/03

    CPC分类号： H04B7/082 ,  H04B1/006 ,  H04B1/1027 ,  H04B1/123 ,  H04B3/32 ,  H04L1/0618 ,  H04L5/0007 ,  H04L25/03057 ,  H04L25/03343 ,  H04L25/03821 ,  H04L27/2647 ,  H04N5/4401

    摘要： An electronic device including a first transceiver configured to process a first carrier, a second transceiver configured to process a second carrier, a switch, a baseband processor configured to process a first baseband signal and a second baseband signal, which are processed respectively by the first transceiver and the second transceiver, an antenna connected through the switch in association with some of a plurality of reception paths with respect to the first carrier, and a reception path configured to provide the second transceiver with the first carrier received via the antenna connected through the switch to the second transceiver.

    摘要翻译： 一种电子设备，包括被配置为处理第一载波的第一收发器，被配置为处理第二载波的第二收发器，开关，被配置为处理第一基带信号和第二基带信号的基带处理器，其分别由第一载波 收发器和第二收发器，通过与第一载波的多个接收路径中的一些相关联的开关连接的天线，以及被配置为向第二收发机提供经由天线连接的第一载波接收的接收路径 切换到第二个收发器。

    Training-Based Channel Estimation for Multiple-Antennas
    46.
    发明申请
    Training-Based Channel Estimation for Multiple-Antennas 有权
    基于训练的多天线信道估计

    公开(公告)号：US20150103940A1

    公开(公告)日：2015-04-16

    申请号：US14575859

    申请日：2014-12-18

    申请人： AT&T Intellectual Property II, L.P.

    发明人： Naofal Al-Dhahir ,  Chrintine Fragouli ,  William Turin

    IPC分类号： H04B7/06 ,  H04L25/02 ,  H04B7/08

    CPC分类号： H04B7/0684 ,  H04B7/0669 ,  H04B7/0848 ,  H04B7/0851 ,  H04B7/0854 ,  H04B7/0882 ,  H04L1/0618 ,  H04L25/0204 ,  H04L25/03006

    摘要： The burden of designing multiple training sequences for systems having multiple transmit antennas, is drastically reduced by employing a single sequence from which the necessary multiple sequences are developed. The single sequence is selected to create sequences that have an impulse-like autocorrelation function and zero cross correlations. A sequence of any desired length Nt can be realized for an arbitrary number of channel taps, L. The created sequences can be restricted to a standard constellation (that is used in transmitting information symbols) so that a common constellation mapper is used for both the information signals and the training sequence. In some applications a training sequence may be selected so that it is encoded with the same encoder that is used for encoding information symbols. Both block and trellis coding is possible in embodiments that employ this approach.

    摘要翻译： 为具有多个发射天线的系统设计多个训练序列的负担通过采用从其开发必需的多个序列的单个序列而大大降低。 选择单个序列以创建具有脉冲状自相关函数和零交叉相关的序列。 可以对任意数量的信道抽头L实现任何期望长度Nt的序列。所创建的序列可以被限制为标准星座（用于发送信息符号），使得公共星座映射器被用于 信息信号和训练序列。 在一些应用中，可以选择训练序列，使得它用与编码信息符号相同的编码器进行编码。 在采用这种方法的实施例中，块和网格编码都是可能的。

    Integrated circuit for controlling radio transmission and reception
    47.
    发明授权
    Integrated circuit for controlling radio transmission and reception 有权
    用于控制无线电发射和接收的集成电路

    公开(公告)号：US09008115B2

    公开(公告)日：2015-04-14

    申请号：US14228692

    申请日：2014-03-28

    申请人： Panasonic Intellectual Property Corporation of America

    发明人： Kenichi Miyoshi

    IPC分类号： H04J3/16 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04L1/00 ,  H04L1/06 ,  H04L1/18

    CPC分类号： H04B7/0632 ,  H04B7/04 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0613 ,  H04B7/0667 ,  H04B7/0671 ,  H04B7/0673 ,  H04B7/0697 ,  H04B7/0842 ,  H04L1/0006 ,  H04L1/0015 ,  H04L1/0026 ,  H04L1/0618 ,  H04L1/1657 ,  H04L1/1812 ,  H04L1/1893

    摘要： Data streams stored in buffers are modulated by modulation sections. Multipliers multiply the signals output from the modulation sections by weights output from a weight control section. The signals output from the multipliers are added up by addition sections, subjected to radio transmission processing by transmission radio sections and sent through antennas. A buffer control section controls the buffers based on a retransmission count output from a retransmission count detection section. The weight control section outputs weights different from weights at the time of previous transmission to the multipliers every time data is retransmitted. This allows a diversity gain at the time of data retransmission to be increased even if a time variation of the propagation path environment for radio signals is slow.

    摘要翻译： 存储在缓冲器中的数据流由调制部分调制。 乘数将从调制部分输出的信号乘以重量控制部分的重量输出。 从乘法器输出的信号由加法部分相加，经过无线电传送部分的无线电传输处理并通过天线发送。 缓冲器控制部分基于从重传计数检测部分输出的重传计数来控制缓冲器。 每当重发数据时，权重控制部分将与先前发送时的权重不同的权重输出到乘法器。 即使无线电信号的传播路径环境的时间变化较慢，也能够提高数据重发时的分集增益。

    Operation for backward-compatible transmission
    50.
    发明授权
    Operation for backward-compatible transmission 有权
    后向兼容传输操作

    公开(公告)号：US08958493B2

    公开(公告)日：2015-02-17

    申请号：US11089284

    申请日：2005-03-24

    申请人： Michael Lewis

    发明人： Michael Lewis

    IPC分类号： H04B7/02 ,  H03K9/00 ,  H04J11/00 ,  H03C7/02 ,  H04B1/10 ,  H04L25/02 ,  H04L1/00 ,  H04L1/06 ,  H04L5/00 ,  H04L5/14

    CPC分类号： H04L25/0204 ,  H04L1/0002 ,  H04L1/0618 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/1446 ,  H04L25/022 ,  H04L25/0226 ,  H04L25/025

    摘要： The present invention relates to a transmitter in a transmission system operable to optimize estimates of a quantity at a receiver for improved operation. The transmission system includes a transmitting unit connected to a number of antennas (Txm), and to control unit. The control unit controls the transmitting unit to initially transmit an initial training/quantity estimation sequence during an initial training/quantity estimation phase and subsequently transmit a sequence of data symbols such that the information rate of the data symbols is progressively increased.

    摘要翻译： 本发明涉及传输系统中的发射机，其可操作以优化在接收机处的数量的估计以改善操作。 传输系统包括连接到多个天线（Txm）的发射单元和控制单元。 控制单元控制发送单元在初始训练/量估计阶段期间初始发送初始训练/量估计序列，并随后发送数据符号序列，使得数据符号的信息速率逐渐增加。