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1. 发明授权

US08842785B2 Soft scaling method and apparatus 有权
标题翻译：软缩放方法和装置
公开(公告)号：US08842785B2
公开(公告)日：2014-09-23
申请号：US12165708
申请日：2008-07-01
申请人： Ning He , Håkan B. Björkegren , Fredrik Gunnarsson
发明人： Ning He , Håkan B. Björkegren , Fredrik Gunnarsson
IPC分类号： H04B1/10 , H04B1/7097
CPC分类号： H04B1/7097
摘要： A received signal of interest is processed by determining timing of interference spikes in the received signal of interest. Receivers can determine when certain types of interference spikes are expected to occur, e.g., based on when different users are scheduled to transmit data during an overlapping portion of the same transmission time interval. The interference timing information is used by the receiver to soft scale signal values recovered from the received signal of interest that coincide with the interference spikes separately from remaining ones of the signal values. This way, fast changing interference power can be accurately tracked during periods of known interference spikes while also accurately tracking slower changing interference power during other periods.
摘要翻译：通过确定感兴趣的接收信号中的干扰尖峰的定时来处理感兴趣的接收信号。接收机可以确定何时预期会发生特定类型的干扰尖峰，例如，基于在相同传输时间间隔的重叠部分期间何时调度不同用户发送数据的时间。接收机使用干扰定时信息来从感兴趣的接收信号中恢复的信号值与干扰峰值相一致地与信号值中的剩余信号值分开。这样，可以在已知干扰尖峰期间精确地跟踪快速变化的干扰功率，同时还可以在其他周期期间准确地跟踪较慢变化的干扰功率。

2. 发明申请

US20120258763A1 Correction of Estimated SIR Used for Transmit Power Control 有权
标题翻译：用于发射功率控制的估计SIR的校正
公开(公告)号：US20120258763A1
公开(公告)日：2012-10-11
申请号：US13516885
申请日：2009-12-29
申请人： Håkan B. Björkegren , Jing Rao
发明人： Håkan B. Björkegren , Jing Rao
IPC分类号： H04W52/24 , H04B17/00
CPC分类号： H04W52/246 , H04B17/327 , H04B17/336 , H04W52/12 , H04W52/225 , H04W52/228 , H04W52/241 , H04W52/243
摘要： The present invention provides a method which performs an estimation of a SIR as basis for transmit power control. The SIR estimation is performed for a radio signal (u) which is transmitted from a transmitter (35) to a receiver (43) over a radio channel (37). A channel estimate h and a combining weight w are first obtained (83). Then an estimated SIR value is generated (85) based at least in part on the channel estimate h and the combining weight w. The estimated SIR value is generated such that it equals a first estimated SIR value multiplied by a numerical factor. The numerical factor is dependent on the channel estimate h and the combining weight w in a manner such that it attains a minimum value whenever the channel estimate h and the combining weight w are linearly dependent. The invention also comprises devices for carrying out the method.
摘要翻译：本发明提供一种执行SIR估计的方法，作为发射功率控制的基础。对通过无线电信道（37）从发射机（35）发射到接收机（43）的无线电信号（u）进行SIR估计。首先获得信道估计h和组合权重w（83）。然后至少部分地基于信道估计h和组合权重w生成估计的SIR值（85）。产生估计的SIR值使其等于乘以数值因子的第一估计SIR值。数值因子取决于信道估计h和组合权重w，使得只要信道估计h和组合权重w是线性相关的，它就达到最小值。本发明还包括用于执行该方法的装置。

3. 发明申请

US20130051346A1 Power Level of Transmitted Control Channel Symbol 有权
标题翻译：发射控制信道符号的功率电平
公开(公告)号：US20130051346A1
公开(公告)日：2013-02-28
申请号：US13661864
申请日：2012-10-26
申请人： Johan Mikael Bergman , Håkan B. Björkegren , Carmela Cozzo , Christer Edholm
发明人： Johan Mikael Bergman , Håkan B. Björkegren , Carmela Cozzo , Christer Edholm
IPC分类号： H04W52/24 , H04W72/04
CPC分类号： H04W52/325 , H04L25/0202 , H04W52/16 , H04W52/262 , H04W52/267 , H04W52/362
摘要： Channel estimation accuracy is improved by adjusting the power level of a physical control channel allocated to a receiver based on the transmission rate and/or transport format of a corresponding physical data channel allocated to the same receiver. The physical control channel may be a DPCCH, E-DPCCH or other type of physical control channel allocated to a receiver for facilitating uplink or downlink communication. In one embodiment, control channel symbols are transmitted for use in channel estimation by adjusting the power level of a physical control channel allocated to a receiver based on the transmission rate and/or transport format of a physical data channel allocated to the receiver (200). Control channel symbols are transmitted to the receiver over the physical control channel at the adjusted power level (202). The receiver uses the control channel symbols to perform channel estimation (204).
摘要翻译：通过基于分配给同一接收机的相应物理数据信道的传输速率和/或传输格式调整分配给接收机的物理控制信道的功率电平来提高信道估计精度。物理控制信道可以是分配给接收机的DPCCH，E-DPCCH或其他类型的物理控制信道，以便于上行链路或下行链路通信。在一个实施例中，通过基于分配给接收机（200）的物理数据信道的传输速率和/或传输格式调整分配给接收机的物理控制信道的功率电平，来传输控制信道符号用于信道估计，。控制信道符号通过物理控制信道以调整的功率电平（202）发送到接收机。接收机使用控制信道符号来执行信道估计（204）。

4. 发明授权

US08009727B2 Equalizer for single carrier FDMA receiver 有权
标题翻译：用于单载波FDMA接收机的均衡器
公开(公告)号：US08009727B2
公开(公告)日：2011-08-30
申请号：US11676638
申请日：2007-02-20
申请人： Dennis Hui , Jung-Fu Cheng , Håkan B. Björkegren
发明人： Dennis Hui , Jung-Fu Cheng , Håkan B. Björkegren
IPC分类号： H04B1/10
CPC分类号： H04L25/03159 , H04L5/0007 , H04L25/0204 , H04L25/0224 , H04L27/2647 , H04L2025/03414 , H04L2025/0342 , H04L2025/03426
摘要： A method of equalizing a received signal compensates for frequency selectivity of the communication channel taking into account channel estimation errors. The method comprises generating channel estimates for the received signal, computing filter weights for an equalizer based on said channel estimates and a covariance of the channel estimation error, and filtering the received signal using the computed filter weights.
摘要翻译：考虑到信道估计误差，均衡接收信号的方法补偿通信信道的频率选择性。该方法包括生成接收信号的信道估计，基于所述信道估计和信道估计误差的协方差计算均衡器的滤波器权重，以及使用计算的滤波器权重对接收信号进行滤波。

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