利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

49 条记录 (耗时 0.029 秒)

    Method and apparatus for power control in a mobile radio system
    21.
    发明申请
    Method and apparatus for power control in a mobile radio system 有权
    移动无线电系统中功率控制的方法和装置

    公开(公告)号：US20060099913A1

    公开(公告)日：2006-05-11

    申请号：US10528736

    申请日：2003-09-03

    申请人： Johan Nilsson ,  Bo Bernhardsson

    发明人： Johan Nilsson ,  Bo Bernhardsson

    IPC分类号： H04B7/00

    CPC分类号： H04W52/12 ,  H04W52/20 ,  H04W52/24 ,  H04W52/243

    摘要： A telecommunications system for improving quality of service (QoS) to users via the implementation of an extended outer loop power control algorithm. A radio resource manager (RRM) operates to determine the number of channels allotted to users within a network at a certain time. The RRM implements the extended outer loop power control algorithm for each allotted channel, thus determining SIR reference values for each allotted channel. the RRM ensures that the SIR reference value for any channel does not fall bellow a predetermined minimum value. The SIR reference value to be used for all channels in use is determined as the highest of all the calculated SIR reference values. The extended outer loop power control algorithm can be implemented at a mobile station level, base station level or radio network controller level.

    摘要翻译： 一种用于通过实施扩展外环功率控制算法来改善用户服务质量（QoS）的电信系统。 无线电资源管理器（RRM）用于确定在特定时间内分配给网络中的用户的信道数量。 RRM为每个分配的信道实现扩展的外环功率控制算法，从而确定每个分配的信道的SIR参考值。 RRM确保任何通道的SIR参考值不会落在预定的最小值之下。 要用于所有使用的通道的SIR参考值被确定为所有计算的SIR参考值中的最高值。 扩展外环功率控制算法可以在移动台级，基站级或无线网络控制器级实现。

    Method and apparatus for channel quality derivation
    22.
    发明授权
    Method and apparatus for channel quality derivation 有权
    信道质量推导的方法和装置

    公开(公告)号：US08385222B2

    公开(公告)日：2013-02-26

    申请号：US12723255

    申请日：2010-03-12

    申请人： Bengt Lindoff ,  Bo Bernhardsson ,  Muhammad Ali Kazmi

    发明人： Bengt Lindoff ,  Bo Bernhardsson ,  Muhammad Ali Kazmi

    IPC分类号： H04L12/26

    CPC分类号： H04L25/022 ,  H04B17/26 ,  H04B17/309 ,  H04B17/364 ,  H04B17/373 ,  H04L25/0222 ,  H04L25/0232

    摘要： In one aspect, a method and apparatus derive channel quality estimates for given subcarriers in an OFDM signal, based on reference signal (RS) or other known-signal measurements made for another set of subcarriers. In at least one embodiment, a wireless communication apparatus implements a method whereby it is configured for receiving reference information on the first set of subcarriers; generating the first channel quality estimates in the frequency domain, based on the received reference information; computing a power delay profile for the first set of subcarriers; and determining the second channel quality estimates either by extrapolating from the first channel quality estimates or as an average of the first channel quality estimates, depending on a delay spread of the power delay profile.

    摘要翻译： 一方面，一种方法和装置基于参考信号（RS）或对另一组子载波进行的其他已知信号测量，在OFDM信号中导出给定子载波的信道质量估计。 在至少一个实施例中，无线通信装置实现一种方法，由此被配置为在第一组子载波上接收参考信息; 基于所接收的参考信息，生成频域中的第一信道质量估计; 计算第一组子载波的功率延迟分布; 以及通过根据所述功率延迟分布的延迟扩展，从所述第一信道质量估计外推或者作为所述第一信道质量估计的平均来确定所述第二信道质量估计。

    Method and Apparatus for Interference Suppression using a Reduced-Complexity Joint Detection
    23.
    发明申请
    Method and Apparatus for Interference Suppression using a Reduced-Complexity Joint Detection 有权
    使用简化复杂度联合检测的干扰抑制方法和装置

    公开(公告)号：US20120093263A1

    公开(公告)日：2012-04-19

    申请号：US12903836

    申请日：2010-10-13

    申请人： Anders Rosenqvist ,  Niklas Andgart ,  Bo Bernhardsson

    发明人： Anders Rosenqvist ,  Niklas Andgart ,  Bo Bernhardsson

    IPC分类号： H04L27/06

    CPC分类号： H04L25/023 ,  H04L25/03305 ,  H04L2025/03401 ,  H04L2025/03414 ,  H04L2025/0342 ,  H04L2025/03426

    摘要： A method of detecting a desired signal within a composite signal provides for suppression of interfering signal(s). The method, implemented in a wireless communication apparatus, for example, includes receiving the composite signal and obtaining sample values therefrom. At least some of the sample values include desired and interfering signal components. The method further includes generating an interfering signal channel estimate by: forming sample pairs for some or all of the sample values; identifying sample pairs of interest as those sample pairs in which the interfering signal component is the same; and calculating the interfering signal channel estimate as an average value determined from one or more of the sample pairs of interest. The method further includes detecting desired signal symbols from the composite signal in a joint detection process that functionally depends on the interfering signal channel estimate.

    摘要翻译： 在复合信号内检测期望信号的方法提供了抑制干扰信号。 例如，在无线通信装置中实现的方法包括接收复合信号并从中获取样本值。 至少一些样本值包括期望的和干扰的信号分量。 该方法还包括：通过以下方式产生干扰信号信道估计：为样本值的某些或全部形成样本对; 将感兴趣的样本对识别为其中干扰信号分量相同的样本对; 以及将干扰信号信道估计值计算为从感兴趣的一个或多个样本对确定的平均值。 该方法还包括在功能上取决于干扰信号信道估计的联合检测过程中从复合信号中检测所需信号符号。

    Determining a detection signal in a spread spectrum communications system
    24.
    发明授权
    Determining a detection signal in a spread spectrum communications system 有权
    确定扩频通信系统中的检测信号

    公开(公告)号：US07949036B2

    公开(公告)日：2011-05-24

    申请号：US11908935

    申请日：2006-03-07

    申请人： Johan Nilsson ,  Bo Bernhardsson ,  Bengt Lindoff

    发明人： Johan Nilsson ,  Bo Bernhardsson ,  Bengt Lindoff

    IPC分类号： H04B1/00

    CPC分类号： H04J13/0048 ,  H04B1/7075 ,  H04B1/7077 ,  H04B2201/70701 ,  H04J13/18

    摘要： Disclosed is a method of generating a detection signal for detecting energy in a spread-spectrum signal, comprising: de-spreading the spread-spectrum signal by applying a predetermined spreading code to obtain a sequence of de-spread signal symbols (202A-202D); accumulating a number of said signal symbols to obtain a single detection signal. The accumulation includes: obtaining a first and a second subset of said de-spread signal symbols, wherein the symbols of the first subset have values that are known to the receiver or at least known to be the same for all symbols of the first subset, and wherein the symbols of the second subset have unknown values; coherently accumulating the symbols of the first subset to obtain a first partial detection signal (203A, 203B, 203C); non-coherently accumulating the symbols of the second subset to obtain a second partial detection signal (204A, 204B, 204C); and combining the first and second partial detection signals to obtain the single detection signal (208).

    摘要翻译： 公开了一种生成用于检测扩频信号中的能量的检测信号的方法，包括：通过应用预定的扩展码对扩频信号进行解扩，以获得解扩信号符号序列（202A-202D） ; 累积多个所述信号符号以获得单个检测信号。 积累包括：获得所述去扩展信号符号的第一和第二子集，其中第一子集的符号具有接收器已知的或至少已知对于第一子集的所有符号是相同的值， 并且其中所述第二子集的符号具有未知值; 相干地累积第一子集的符号以获得第一部分检测信号（203A，203B，203C）; 非相干地累积第二子集的符号以获得第二部分检测信号（204A，204B，204C）; 以及组合所述第一和第二部分检测信号以获得所述单个检测信号（208）。

    Synchronization detection methods and apparatus
    26.
    发明授权
    Synchronization detection methods and apparatus 有权
    同步检测方法和装置

    公开(公告)号：US07437175B2

    公开(公告)日：2008-10-14

    申请号：US10839926

    申请日：2004-05-06

    申请人： Bengt Lindoff ,  Bo Bernhardsson

    发明人： Bengt Lindoff ,  Bo Bernhardsson

    IPC分类号： H04B7/00 ,  H04Q7/20

    CPC分类号： H04W52/40 ,  H04W52/54

    摘要： Methods and apparatus for determining when uplink synchronization has been achieved when entering or adding a link in soft handover to a new node in a communication system. Transmit power control (TPC) commands from the new link are not included in a TPC command combination until an uplink synchronization detector determines that synchronization has been achieved. Since in many communication systems, a pattern of TPC commands is transmitted on the new downlink as long as the new node's uplink is not synchronized, the uplink synchronization detector can determine whether synchronization has been achieved by determining whether the TPC command pattern is present in the new downlink. In this way, the UL synchronization detector reduces the occurrence and magnitude of unwanted peaks and dips in uplink transmitted power.

    摘要翻译： 当在通信系统中向新的节点进行软切换中输入或添加链路时，确定何时上行链路同步已经实现的方法和装置。 直到上行链路同步检测器确定已经实现同步，才能将来自新链路的发送功率控制（TPC）命令包含在TPC命令组合中。 由于在许多通信系统中，只要新节点的上行链路不同步，则在新的下行链路上传输TPC命令的模式，上行链路同步检测器可以通过确定是否存在TPC命令模式来确定是否已经实现了同步 新下行链路。 以这种方式，UL同步检测器减少了上行链路发送功率中出现的不必要的峰值和幅度。

    Method and Apparatus for Reducing Interference in Wireless Communication Networks by Enabling More Opportune Handover
    27.
    发明申请
    Method and Apparatus for Reducing Interference in Wireless Communication Networks by Enabling More Opportune Handover 审中-公开
    通过实现更多机会切换来减少无线通信网络干扰的方法和装置

    公开(公告)号：US20080232326A1

    公开(公告)日：2008-09-25

    申请号：US12049870

    申请日：2008-03-17

    申请人： Bengt Lindoff ,  Bo Bernhardsson ,  Arne Simonsson

    发明人： Bengt Lindoff ,  Bo Bernhardsson ,  Arne Simonsson

    IPC分类号： H04Q7/00

    CPC分类号： H04W36/30 ,  H04W36/20

    摘要： According to the teachings presented herein, wireless communication network interference is reduced by sending handover measurement information from mobile stations in conjunction with sending uplink scheduling requests, and by correspondingly making combined handover and uplink resource scheduling decisions. In this context, the combined decision considers both the handover measurement information and the uplink scheduling request, and determines whether a serving cell grants or denies the request and whether handover from the serving cell to a neighboring cell is or is not initiated for the mobile station. The combined determination provides for timely handover of the mobile station, such as where the mobile station is operating near a cell edge and issues an uplink scheduling request to its currently serving cell.

    摘要翻译： 根据本文提出的教导，通过从移动台发送切换测量信息并结合发送上行调度请求，并相应地进行组合切换和上行链路资源调度决定，减少了无线通信网络的干扰。 在这种情况下，组合决策同时考虑切换测量信息和上行链路调度请求，并且确定服务小区是否授予或拒绝该请求，以及从移动台是否启动从服务小区到相邻小区的切换 。 组合确定提供移动站的及时切换，例如移动站在小区边缘附近操作的位置，并向其当前服务小区发布上行链路调度请求。

    METHOD OF AND APPARATUS FOR ADAPTIVE FREQUENCY ERROR ESTIMATION
    28.
    发明申请
    METHOD OF AND APPARATUS FOR ADAPTIVE FREQUENCY ERROR ESTIMATION 审中-公开
    自适应频率误差估计的方法和装置

    公开(公告)号：US20080151980A1

    公开(公告)日：2008-06-26

    申请号：US11615877

    申请日：2006-12-22

    申请人： Bengt Lindoff ,  Bo Bernhardsson ,  Johan Nilsson

    发明人： Bengt Lindoff ,  Bo Bernhardsson ,  Johan Nilsson

    IPC分类号： H04B17/00 ,  H04B3/46

    CPC分类号： H04L27/0014 ,  H04J11/0093 ,  H04L27/2657 ,  H04L27/2675 ,  H04L27/2678 ,  H04L2027/0065

    摘要： A method and apparatus that adapts, from time to time, a frequency error estimation algorithm between a cyclic prefic (CP) correlation algorithm and pilot symbols algorithm depending on the values of several variables, including service (VoIP/high data rate), signal to noise ratio (SNR), Doppler spread, system BW, and whether the system is time division duplex (TDD) or frequency division duplex (FDD). The method and apparatus is also adapted to select both algorithms.

    摘要翻译： 根据包括服务（VoIP /高数据速率）在内的若干变量的值，循环预先（CP）相关算法和导频符号算法之间的频率误差估计算法不时地适应的方法和装置， 噪声比（SNR），多普勒扩展，系统BW以及系统是时分双工（TDD）还是频分双工（FDD）。 该方法和装置还适于选择这两种算法。

    METHOD AND APPARATUS FOR POWER CONTROL IN A MOBILE RADIO SYSTEM
    29.
    发明申请
    METHOD AND APPARATUS FOR POWER CONTROL IN A MOBILE RADIO SYSTEM 审中-公开
    移动无线电系统中功率控制的方法和装置

    公开(公告)号：US20080045160A1

    公开(公告)日：2008-02-21

    申请号：US11844921

    申请日：2007-08-24

    申请人： Johan Nilsson ,  Bo Bernhardsson

    发明人： Johan Nilsson ,  Bo Bernhardsson

    IPC分类号： H04B1/00 ,  H04B1/38

    CPC分类号： H04W52/12 ,  H04W52/20 ,  H04W52/24 ,  H04W52/26 ,  H04W52/367

    摘要： A telecommunications system for improving quality of service (QoS) to users via the implementation of an extended outer loop power control algorithm. A radio resource manager (RRM) operates to determine the number of chapels allotted to users within a network at a certain time. The RRM implements the extended outer loop power control algorithm for each allotted channel, thus determining SIR reference values for each allotted channel. The RRM ensures that the SIR reference value for any channel does not fall below a predetermined minimum value. The SIR reference value to be used for all channels in use is determined as the highest of all the calculated SIR reference values. The extended outerloop power control algorithm can be implemented at a mobile station level, base station level or radio network controller level.

    摘要翻译： 一种用于通过实施扩展外环功率控制算法来改善用户服务质量（QoS）的电信系统。 无线电资源管理器（RRM）用于确定在特定时间内分配给网络中的用户的教堂的数量。 RRM为每个分配的信道实现扩展的外环功率控制算法，从而确定每个分配的信道的SIR参考值。 RRM确保任何通道的SIR参考值不会低于预定的最小值。 要用于所有使用的通道的SIR参考值被确定为所有计算的SIR参考值中的最高值。 扩展外环功率控制算法可以在移动台级，基站级或无线网络控制器级实现。