公开(公告)号：US20090258628A1

公开(公告)日：2009-10-15

申请号：US12198366

申请日：2008-08-26

申请人： Bengt Lindoff ,  Bo Bernhardsson ,  Fredrik Nordstrom

发明人： Bengt Lindoff ,  Bo Bernhardsson ,  Fredrik Nordstrom

IPC分类号： H04B1/10

CPC分类号： H04L27/0014

摘要： Methods and apparatus for automatic frequency control in wireless receivers configured to simultaneously receive multiple carrier signals at distinct radio frequencies are disclosed. An exemplary wireless device comprises at least first and second radio front-end circuits configured to receive first and second wireless communication signals transmitted via first and second radio-frequency carriers at distinct first and second radio frequencies, respectively, a control processor configured to designate a master carrier signal and a slave carrier signal from among the received wireless communication signals, and a frequency error estimation circuit configured to estimate a first receiver frequency error using the received master carrier signal. The control processor is further configured to calculate a second receiver frequency error from the first receiver frequency error, for use in compensating one or more receiver processes performed on the slave carrier signal.

摘要翻译： 公开了用于在不同射频同时接收多个载波信号的无线接收机中的自动频率控制的方法和装置。 示例性无线设备包括至少第一和第二无线电前端电路，其被配置为分别接收在不同的第一和第二无线电频率处经由第一和第二无线电频率载波发送的第一和第二无线通信信号，控制处理器被配置为指定 来自所接收的无线通信信号中的主载波信号和从载波信号;以及频率误差估计电路，被配置为使用所接收的主载波信号来估计第一接收机频率误差。 控制处理器还被配置为从第一接收机频率误差计算第二接收机频率误差，用于补偿对从属载波信号执行的一个或多个接收机处理。

公开(公告)号：US07346126B2

公开(公告)日：2008-03-18

申请号：US09996513

申请日：2001-11-28

申请人： Johan Nilsson ,  Håkan Eriksson ,  Bo Bernhardsson

发明人： Johan Nilsson ,  Håkan Eriksson ,  Bo Bernhardsson

IPC分类号： H04L27/06

CPC分类号： H04W52/16 ,  H04L25/0204 ,  H04L25/0212 ,  H04L25/0224

摘要： Methods and apparatus are described for estimating a gain offset between two channels in a communication system. The gain offset arises from the system's transmission of signals on the two channels at different powers. The estimated gain offset is used for determining a set of complex channel estimates.

摘要翻译： 描述了用于估计通信系统中两个信道之间的增益偏移的方法和装置。 增益偏移来自系统在不同功率下的两个通道上的信号传输。 估计的增益偏移用于确定一组复杂信道估计。

公开(公告)号：US07302276B2

公开(公告)日：2007-11-27

申请号：US10926742

申请日：2004-08-26

申请人： Bo Bernhardsson ,  Jonas Ohlsson ,  Mikael Zirèn

发明人： Bo Bernhardsson ,  Jonas Ohlsson ,  Mikael Zirèn

IPC分类号： H04B7/00 ,  H04Q7/20

CPC分类号： H04W52/246 ,  H04B17/327 ,  H04W52/14 ,  H04W52/228 ,  H04W52/242 ,  H04W52/245 ,  H04W52/50

摘要： Methods and apparatus are described for estimating a path-loss difference between uplink and downlink communications at a first node communicating with a second node in a communication system. A quantity of access request preambles transmitted by the first node to the second node before an acknowledgement from the second node of successful receipt of a preamble is received at the first node is determined. A difference between an uplink path-loss attributed to communications from the first node to the second node and a downlink path-loss attributed to communications to the first node from the second node is estimated based on the transmitted preamble quantity determination. Once the path-loss difference is estimated, the estimate can be used for many purposes, such as to determine a transmission power of the first node.

摘要翻译： 描述了用于估计在通信系统中与第二节点通信的第一节点处的上行链路和下行链路通信之间的路径损耗差异的方法和装置。 在第一节点处接收到来自第二节点的成功接收的确认之前由第一节点发送到第二节点的接入请求前导码的数量被确定。 基于所发送的前导码量确定，估计归因于从第一节点到第二节点的通信的上行链路路径损耗与归因于从第二节点到第一节点的通信的下行链路路径损耗之间的差异。 一旦路径损耗差被估计，该估计可用于许多目的，例如确定第一节点的发射功率。

公开(公告)号：US20070171813A1

公开(公告)日：2007-07-26

申请号：US11276384

申请日：2006-02-27

申请人： Bengt Lindoff ,  Thomas Olsson ,  Bo Bernhardsson

发明人： Bengt Lindoff ,  Thomas Olsson ,  Bo Bernhardsson

IPC分类号： H04Q7/00 ,  H04J11/00

CPC分类号： H04L27/2647 ,  H04W28/14 ,  H04W68/00

摘要： A method and apparatus for fast FFT processing of paging information in a user equipment (UE). The apparatus comprises a front end receiver (201) adapted to receive and down convert an RF signal to a baseband signal having a first part and a second part. An optional analog filter (202) is coupled to the output of the front end receiver (201) and is adapted to filter the analog signal. An analog to digital (A/D) converter (203) is coupled to the optional analog filter (202) and is adapted to convert the analog signal to a first digital signal. A first digital filter (204) is coupled to a first branch from the output of the A/D converter (203). The first digital filter (204) is adapted to digitally process the first digital signal. A buffer (206) is coupled to the digital filter (204) and is adapted to store the frist digital signal. The first digital filter (204) has a predetermined bandwidth (BWA). An FFTN processor (212) having N stages is adapted to process the digital signal. The FFTN processor is coupled to the output of the buffer (206). An optional digital mixer (208) is switchably coupled to a second branch from the output of the A/D converter (203). A clock timer (205) is adapted to switchably couple the optional digital mixer (208) to the second branch from the output of the A/D converter (203). A second digital filter (209) is coupled to the output of the digital mixer (208). Digital mixer (208) is adapted to digitally down convert the first digital signal to the center frequency of a paging information (fp) signal within the first digital signal. An FFTM processor (210) having M stages is coupled to the output of the second digital low pass filter and a paging detector (211) is coupled to the output of the FFTM processor (210). The paging detector (211) is adapted to detect a paging information signal. Using the method and apparatus of the present invention, the time for FFT processing of the paging information is significantly reduced for wide BW S3G implementations.

公开(公告)号：US20070116100A1

公开(公告)日：2007-05-24

申请号：US11412543

申请日：2006-04-27

申请人： Bengt Lindoff ,  Bo Bernhardsson ,  Jonas Ohlsson

发明人： Bengt Lindoff ,  Bo Bernhardsson ,  Jonas Ohlsson

IPC分类号： H04B1/00

CPC分类号： H04B1/712 ,  H04B2201/7071 ,  H04B2201/709727

摘要： According to a method and apparatus taught herein, a Rake receiver circuit selectively operates with or without colored interference compensation, in dependence on current operating conditions. For example, in one embodiment the Rake receiver circuit comprises one or more processing circuits that are configured to generate Rake combining weights in a first mode of operation as first combining weights calculated from channel estimates corresponding to a set of Rake signal fingers. In a second mode, the processing circuit(s) generate the Rake combining weights as compensated combining weights obtained by compensating the first combining weights with second combining weights calculated from colored interference estimates corresponding to a set of Rake probing fingers.

摘要翻译： 根据本文教导的方法和装置，Rake接收器电路根据当前的操作条件选择性地在有或没有有色干涉补偿的情况下操作。 例如，在一个实施例中，Rake接收机电路包括一个或多个处理电路，其被配置为以第一操作模式生成Rake组合权重作为从对应于一组Rake信号指的信道估计计算的第一组合权重。 在第二模式中，处理电路产生Rake组合权重作为通过用对应于一组耙探测手指的有色干涉估计计算的第二组合权重来补偿第一组合权重而获得的补偿组合权重。

公开(公告)号：US07149538B2

公开(公告)日：2006-12-12

申请号：US10612373

申请日：2003-07-02

申请人： Bengt Lindoff ,  Bo Bernhardsson ,  Torgny Palenius

发明人： Bengt Lindoff ,  Bo Bernhardsson ,  Torgny Palenius

IPC分类号： H04Q7/20 ,  H04B7/00

CPC分类号： H04W52/367 ,  H04W52/228 ,  H04W52/283 ,  H04W52/288

摘要： A method for controlling transmission power from a wireless transceiver. Signal to interference ratios (SIRs) are estimated for a signal that is received from another wireless device. An out-of-sync condition between the wireless transceiver and the other wireless device is identified based on the SIRs. Change of the transmission power from the wireless transceiver is restricted based on the SIRs and when an out-of-sync condition has not been identified.

摘要翻译： 一种用于控制来自无线收发器的发射功率的方法。 对于从另一无线设备接收到的信号估计信号与干扰比（SIR）。 基于SIR识别无线收发器与另一无线设备之间的不同步状态。 来自无线收发器的发射功率的改变基于SIR被限制并且当不同步条件尚未被识别时被限制。

公开(公告)号：US20050250526A1

公开(公告)日：2005-11-10

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： H04B7/005 ,  H04W52/40 ,  H04W52/54 ,  H04B1/034

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。

公开(公告)号：US20050143118A1

公开(公告)日：2005-06-30

申请号：US10926742

申请日：2004-08-26

申请人： Bo Bernhardsson ,  Jonas Ohlsson ,  Mikael Ziren

发明人： Bo Bernhardsson ,  Jonas Ohlsson ,  Mikael Ziren

IPC分类号： H04B7/005 ,  H04B17/00 ,  H04W52/14 ,  H04W52/22 ,  H04W52/24 ,  H04W52/50 ,  H04Q7/20

CPC分类号： H04W52/246 ,  H04B17/327 ,  H04W52/14 ,  H04W52/228 ,  H04W52/242 ,  H04W52/245 ,  H04W52/50

摘要： Methods and apparatus are described for estimating a path-loss difference between uplink and downlink communications at a first node communicating with a second node in a communication system. A quantity of access request preambles transmitted by the first node to the second node before an acknowledgement from the second node of successful receipt of a preamble is received at the first node is determined. A difference between an uplink path-loss attributed to communications from the first node to the second node and a downlink path-loss attributed to communications to the first node from the second node is estimated based on the transmitted preamble quantity determination. Once the path-loss difference is estimated, the estimate can be used for many purposes, such as to determine a transmission power of the first node.

摘要翻译： 描述了用于估计在通信系统中与第二节点通信的第一节点处的上行链路和下行链路通信之间的路径损耗差异的方法和装置。 在第一节点处接收到来自第二节点的成功接收的确认之前由第一节点发送到第二节点的接入请求前导码的数量被确定。 基于所发送的前导码量确定，估计归因于从第一节点到第二节点的通信的上行链路路径损耗与归因于从第二节点到第一节点的通信的下行链路路径损耗之间的差异。 一旦路径损耗差被估计，该估计可用于许多目的，例如确定第一节点的发射功率。

公开(公告)号：US20050047534A1

公开(公告)日：2005-03-03

申请号：US10830387

申请日：2004-04-22

申请人： Bengt Lindoff ,  Bo Bernhardsson

发明人： Bengt Lindoff ,  Bo Bernhardsson

IPC分类号： H04L27/00 ,  H04L27/38 ,  H04L27/08 ,  H04B3/46

CPC分类号： H04L27/3809 ,  H04L27/00

摘要： A method and system are described for processing a received signal at a receiver in a communication system. The receiver includes a digital filter and automatic gain control means. Information indicating the frequency band of operation and the type of service of the received signal is received at the receiver from the communication system. The gain and filtering parameters of the receiver are set according to the received information. The received signal is processed at the receiver using the gain and filtering parameters. Optionally, a determination of whether the received signal contains adjacent channel interference above a predetermined allowable threshold may also be made and the determination may then be used in setting the gain and filtering parameters.

摘要翻译： 描述了用于在通信系统中的接收机处理接收信号的方法和系统。 接收机包括数字滤波器和自动增益控制装置。 在通信系统的接收机处接收表示接收信号的工作频带和接收信号的种类的信息。 根据接收到的信息设置接收机的增益和滤波参数。 使用增益和滤波参数在接收机处理接收到的信号。 可选地，还可以做出接收信号是否包含高于预定允许阈值的相邻信道干扰的确定，然后可以将该确定用于设置增益和滤波参数。