专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2010140131A2 CONTINUOUS SEQUENTIAL SCATTERER ESTIMATION 审中-公开
标题翻译：连续序列散射估计
公开(公告)号：WO2010140131A2
公开(公告)日：2010-12-09
申请号：PCT/IB2010052470
申请日：2010-06-02
申请人： ERICSSON TELEFON AB L M , DENT PAUL W , KRASNY LEONID
发明人： DENT PAUL W , KRASNY LEONID
IPC分类号： H04L25/02
CPC分类号： H04L25/022 , H04L25/0222 , H04L25/0236 , H04L25/0248 , H04L25/03101
摘要： The present invention uses newly received signal samples to update previously determined scatterer parameters, and therefore, reduces the processing effort required for characterizing scattering objects in a wireless channel. Broadly, the present invention determines a first set of scatterer parameters based on signal samples derived from signals received during one or more previous time interval, and determines an updated set of scatterer parameters for a subsequent time interval based on the first set of scatterer parameters and the new signal samples hi one exemplary embodiment, the receiver uses a continuous sequential update process, e.g., a per-symbol-period inverse Prony process, to update the scatters parameters !n another exemplar embodiment, the receiver uses an integrated Doppler approach to update the scatterer parameters.
摘要翻译：本发明使用新接收的信号样本来更新先前确定的散射体参数，因此减少了在无线信道中表征散射物体所需的处理努力。广泛地，本发明基于从在一个或多个先前时间间隔期间接收的信号导出的信号样本来确定第一组散射体参数，并且基于第一组散射体参数确定随后的时间间隔的更新的散射体参数集合，以及新的信号样本在一个示例性实施例中，接收机使用连续的顺序更新过程，例如每符号周期逆Prony过程来更新分散参数！在另一示例性实施例中，接收机使用综合多普勒方法来更新散射体参数。

2. 发明申请

WO2010001224A3 MULTI-DIMENSIONAL SIGNAL OF REDUCED PEAK-TO-RMS RATIO 审中-公开
标题翻译：降低峰值与均方根比率的多维信号
公开(公告)号：WO2010001224A3
公开(公告)日：2010-04-08
申请号：PCT/IB2009006120
申请日：2009-06-30
申请人： ERICSSON TELEFON AB L M , DENT PAUL W
发明人： DENT PAUL W
IPC分类号： H04L27/34 , H04B1/707
CPC分类号： H04L27/3411 , H04B2201/70706 , H04L27/3416
摘要： A transmitter and a method are described herein that can generate a radio signal with a reduced ratio of peak amplitude to root-mean-square amplitude which helps to improve the transmit efficiency of the transmitter's power amplifier. In addition, a receiver is also described herein that can decode the radio signal.
摘要翻译：这里描述的发射机和方法可以生成具有减小的峰值幅度与均方根幅度的比率的无线电信号，这有助于提高发射机的功率放大器的发射效率。另外，这里还描述了可以解码无线电信号的接收机。

3. 发明申请

WO2010001224A2 MULTI-DIMENSIONAL SIGNAL OF REDUCED PEAK-TO-RMS RATIO 审中-公开
标题翻译：减少峰值到RMS比的多维信号
公开(公告)号：WO2010001224A2
公开(公告)日：2010-01-07
申请号：PCT/IB2009/006120
申请日：2009-06-30
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , DENT, Paul, W.
发明人： DENT, Paul, W.
IPC分类号： H04L27/34 , H04B1/707
CPC分类号： H04L27/3411 , H04B2201/70706 , H04L27/3416
摘要： A transmitter and a method are described herein that can generate a radio signal with a reduced ratio of peak amplitude to root-mean-square amplitude which helps to improve the transmit efficiency of the transmitter's power amplifier. In addition, a receiver is also described herein that can decode the radio signal.
摘要翻译：这里描述的发射器和方法可以产生具有降低的峰值幅度与均方根幅度的比率的无线电信号，这有助于提高发射机的功率放大器的发射效率。此外，本文还描述了可以对无线电信号进行解码的接收机。

4. 发明申请

WO2005032179A3 METHOD AND APPARATUS TO REDUCE DISPATCH DELAYS IN DISPATCH COMMUNICATION NETWORKS 审中-公开
公开(公告)号：WO2005032179A3
公开(公告)日：2005-04-07
申请号：PCT/US2004/030924
申请日：2004-09-22
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , DENT, Paul W.
发明人： DENT, Paul W.
IPC分类号： H04Q7/28
摘要： A communication network supports push-to-talk communications with reduced dispatching delays by eliminating channel grant/request handshaking on the uplink and the downlink. A pool of communication channels (12) can be associated with a group of nets (NET1; NET2; NETm) that include one or more mobile terminals. Any terminal can send dispatch traffic immediately on an assigned uplink channel simply by seizing the channel. The network detects such traffic and retransmits it on a downlink channel monitored by the group of nets. Along with the retransmitted traffic, the network sends a net ID and a new downlink channel assignment. Terminals in the targeted net process the retransmitted traffic and non-targeted terminals switch to the new channel. Alternatively, the control channel can be multiplexed to signal traffic channel assignments as needed for all nets, and traffic can be transmitted on the indicated channels for reception by targeted terminals. The reduced delays particularly benefit networks incorporating satellite relays.

5. 发明申请

WO2002044872A3 ANTI-SPOOFING PASSWORD PROTECTION 审中-公开
公开(公告)号：WO2002044872A3
公开(公告)日：2002-06-06
申请号：PCT/US2001/043476
申请日：2001-11-21
申请人： ERICSSON INC. , DENT, Paul, W.
发明人： DENT, Paul, W.
IPC分类号： G06F1/00
摘要： A system and method to prevent the inadvertent disclosure of a password. A valid password input request results in a password entry screen being displayed to a user that includes authentication indicia known to the user. Failure to see the authentication indicia causes the user to know that the request is a spoof. The invention may further include a method and system of limiting the applications that operate after a password input request is received. Only the applications necessary for inputting the password operate, as the other applications are set as inoperable until the password has been input. This prevents a remote source from obtaining the password has been input. This prevents a remote source from obtaining the password through fraudulent means such as a screen capture or trojan horse program.

6. 发明申请

WO0215387A2 AMPLIFICATION SYSTEMS AND METHODS USING FIXED AND MODULATED POWER SUPPLY VOLTAGES AND BUCK-BOOST CONTROL 审中-公开
标题翻译：放大系统和使用固定和调制电源电压和BUCK-BOOST控制的方法
公开(公告)号：WO0215387A2
公开(公告)日：2002-02-21
申请号：PCT/US0124041
申请日：2001-07-31
申请人： ERICSSON INC , DENT PAUL W , CAMP WILLIAM O JR
发明人： DENT PAUL W , CAMP WILLIAM O JR
IPC分类号： H03F3/68 , H02M3/158 , H03F20060101 , H03F1/02 , H03F1/32 , H03F3/04 , H03F3/189 , H03F3/217 , H03G3/00 , H04L27/20 , H03F
CPC分类号： H03F3/211 , H02M3/1582 , H03F1/0227 , H03F1/0288 , H03F1/0294 , H03F3/602 , H03F2200/198 , H03F2200/324 , H03F2200/331 , H03F2200/336 , H03F2200/432 , H03F2200/504 , H03F2200/516 , H03F2200/537 , H03F2200/541 , H03F2200/543 , H03F2203/21142 , H03G3/004 , H03G3/3042
摘要： A signal of varying amplitude in a first saturated power amplifier that operates from a fixed voltage power supply to produce a first output signal of constant amplitude. The signal of varying amplitude also is amplified in a second saturated power amplifier that operates from a modulated voltage power supply, to produce a second output signal of amplitude that depends on the signal of varying amplitude, a modulated power supply voltage, and on an invert/noninvert control signal. The first and second output signals are combined into a load. The modulated voltage power supply is modulated while generating the invert/noninvert control signal, such that the combined first and second output signals into the load amplify the signal of varying amplitude. The signal of varying amplitude also may be of varying amplitude and varying phase.
摘要翻译：在第一饱和功率放大器中变化幅度的信号，其从固定电压电源操作以产生恒定振幅的第一输出信号。变化幅度的信号也在从调制电压电源操作的第二饱和功率放大器中被放大，以产生取决于变化幅度的信号，调制电源电压和反相的振幅的第二输出信号 /非反相控制信号。第一和第二输出信号被组合成负载。在产生反相/非反相控制信号的同时调制调制电压电源，使得组合的第一和第二输出信号进入负载放大变化幅度的信号。变化幅度的信号也可能具有变化的幅度和变化的相位。

7. 发明申请

WO2011077324A3 MIMO CHANNEL LOOPBACK 审中-公开
标题翻译： MIMO信道环回
公开(公告)号：WO2011077324A3
公开(公告)日：2011-09-01
申请号：PCT/IB2010055850
申请日：2010-12-15
申请人： ERICSSON TELEFON AB L M , DENT PAUL W
发明人： DENT PAUL W
IPC分类号： H04L5/00
CPC分类号： H04L5/0053 , H04L5/0048 , H04L5/0057
摘要： A method and apparatus for efficiently providing a large volume of channel feedback, e.g.. for OFDM MISO and MIMO systems, is described herein. To that end, a mapping unit in an OFDM transceiver maps channel feedback values, e.g., received reference signal values or channel estimates derived therefrom, on a one-to-one basis to individual transmission subchannels. More particularly, the mapping unit maps a feedback value, e.g., the received reference value or a channel estimate derived therefrom, to a single transmission subchannel of an outgoing OFDM signal. For example, the mapping unit may map the feedback value to an input of a frequency transform unit, such as an inverse discrete Fourier transform unit, to map the feedback value to a single transmission subchannel comprising an OFDM transmission subcarrier. The OFDM transceiver transmits the outgoing OFDM signal to the remote transceiver to provide the feedback value to the remote transceiver.
摘要翻译：这里描述了用于有效地提供大量信道反馈的方法和设备，例如用于OFDM MISO和MIMO系统的方法和设备。为此，OFDM收发器中的映射单元以一对一的方式将信道反馈值（例如，接收到的参考信号值或从中导出的信道估计值）映射到单独的传输子信道。更具体地说，映射单元将反馈值（例如接收到的参考值或从中导出的信道估计）映射到输出OFDM信号的单个传输子信道。例如，映射单元可将反馈值映射到频率变换单元（诸如离散傅里叶逆变换单元）的输入，以将反馈值映射到包括OFDM传输子载波的单个传输子信道。 OFDM收发器将输出的OFDM信号发送到远程收发器以将反馈值提供给远程收发器。

8. 发明申请

WO2011061722A1 ORTHOGONAL VECTOR DSL 审中-公开
标题翻译：正交矢量DSL
公开(公告)号：WO2011061722A1
公开(公告)日：2011-05-26
申请号：PCT/IB2010/055354
申请日：2010-11-22
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , DENT, Paul W.
发明人： DENT, Paul W.
IPC分类号： H04L5/20
CPC分类号： H04L25/22 , H04L5/20 , H04L25/03178 , H04L25/49 , H04L27/2626 , H04L27/2647 , H04L27/28 , H04L27/34
摘要： A wire-based infrastructure capable of delivering high data rates is described herein. A transmission system, reception system, and/or repeater uses wire-mapping Fourier code matrices ( 120 ) to reduce interference in multi-wire cables ( 200 ) to increase the data rate provided by such multi-wire cables. More particularly, code mapping matrices are applied to transmission and/or received input signals to generate a mapped signal for each output wire ( 210 ) or corresponding to each input wire such that each mapped signal comprises a different combination of all of the input signals. Different ones of the wire -mapped signals are ultimately transmitted on different wires. In so doing, the present infrastructure facilitates crosstalk reduction, and therefore, provides a technique that increases the data rate available on multi-wire cables.
摘要翻译：这里描述了能够提供高数据速率的基于线的基础设施。传输系统，接收系统和/或中继器使用线映射傅立叶代码矩阵（120）来减少多线缆（200）中的干扰，以增加由这种多线缆提供的数据速率。更具体地，代码映射矩阵被应用于传输和/或接收的输入信号，以针对每个输出线（210）生成映射信号或对应于每个输入线，使得每个映射信号包括所有输入信号的不同组合。不同的线路映射信号最终在不同的电线上传输。这样做，本基础设施便于减少串扰，因此提供了一种提高多线电缆可用数据速率的技术。

9. 发明申请

WO2010046748A3 USING THE SAME MULTIPLEXED RADIO RESOURCE FOR PILOT AND INFORMATION SIGNALS 审中-公开
标题翻译：使用相同的多路径无线电资源进行引导和信息信号
公开(公告)号：WO2010046748A3
公开(公告)日：2011-01-06
申请号：PCT/IB2009007160
申请日：2009-10-19
申请人： ERICSSON TELEFON AB L M , DENT PAUL W
发明人： DENT PAUL W
IPC分类号： H04B1/707 , H04J13/00
CPC分类号： H04B1/707 , H04B2201/70701 , H04J13/004 , H04L5/0051 , H04L25/0228
摘要： A method and apparatus for using the same multiplexed radio resource to simultaneously transmit a pilot sequence and an information signal is described herein. After traveling through a multi-path propagation channel (20), a receiver (200) receives the transmitted pilot and information signals, correlates the received signal (R) with the known pilot sequence to determine one or more correlation values, and estimates the multi- path propagation channel based on the correlation values. The receiver uses the channel estimates to process the received signal to remove the pilot sequence from the information signal. By using the same multiplexed radio resource to transmit both the pilot sequence and the user information signal, the present invention enables more radio resources to be allocated to the information signal without compromising pilot- based channel estimation, and provides more regular access to the transmitted pilot sequence at the receiver.
摘要翻译：本文描述了使用相同的多路复用无线资源同时发送导频序列和信息信号的方法和装置。在多路径传播通道（20）行进之后，接收器（200）接收所发射的导频信息信号，使接收的信号（R）与已知导频序列相关，以确定一个或多个相关值， - 基于相关值的路径传播信道。接收机使用信道估计来处理接收到的信号以从信息信号中去除导频序列。通过使用相同的多路复用无线电资源来传送导频序列和用户信息信号，本发明使得能够在不损害基于导频的信道估计的情况下将更多的无线电资源分配给信息信号，并且提供对发射的导频接收器上的序列。

10. 发明申请

WO2010100551A2 CHANNEL EXTRAPOLATION FROM ONE FREQUENCY AND TIME TO ANOTHER 审中-公开
标题翻译：从一个频率和时间到另一个频道的频道提取
公开(公告)号：WO2010100551A2
公开(公告)日：2010-09-10
申请号：PCT/IB2010000438
申请日：2010-03-03
申请人： ERICSSON TELEFON AB L M , DENT PAUL W
发明人： DENT PAUL W
CPC分类号： H04L27/2626 , H04L25/0202 , H04L25/0242 , H04L27/2634 , H04L27/2647
摘要： An improved channel estimation technique is provided herein that determines accurate scatterer parameters for the scattering objects in the wireless channel, and extrapolates the scatterer parameters in both time and frequency to characterize the scattering objects for a different time and a different frequency. In one embodiment, a wireless device determines scatterer parameters that characterizes the scattering objects of a reception channel, and extrapolates the scatterer parameters in both time and frequency to predict the scatterer parameters for a future time and frequency, e.g., a future transmission time and frequency.
摘要翻译：本文提供了一种改进的信道估计技术，其确定无线信道中散射物体的准确的散射体参数，并且在时间和频率上外推散射体参数以表征不同时间和不同频率的散射物体。在一个实施例中，无线设备确定表征接收信道的散射对象的散射体参数，并且在时间和频率上推断散射体参数以预测未来时间和频率的散射体参数，例如未来的传输时间和频率。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式