公开(公告)号：EP1764929B1

公开(公告)日：2009-08-05

申请号：EP06077230.8

申请日：2004-06-03

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： Jonsson, Elias ,  Watabe, Hiroaki

IPC分类号： H04B1/707

CPC分类号： H04B1/7113 ,  H04B1/7085 ,  H04B1/7117

公开(公告)号：EP1845633A1

公开(公告)日：2007-10-17

申请号：EP06388027.2

申请日：2006-04-12

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： Wang, Xiaohui ,  Jonsson, Elias

IPC分类号： H04B7/005

CPC分类号： H04W52/44 ,  H04W52/12 ,  H04W52/20 ,  H04W52/24

摘要： A power level of signals transmitted in a wireless communications system under a first or a second scrambling code, is controlled in an inner power control loop, where a quality measure (51) is repetitively estimated and control commands generated from the quality measure (51) and a quality measure reference value (56), which in an outer power control loop is adjusted in dependence on a performance level (52) calculated for signals received during a time interval. A first value (54) is adjusted in dependence on a performance level (52) for time intervals with all signals transmitted under the first scrambling code and used during such time intervals. A second value (55) is adjusted in dependence on a performance level (52) for time intervals with at least some signals transmitted under the second scrambling code and used during at least a part of such time intervals.

摘要翻译： 在第一或第二扰码下的无线通信系统中发送的信号的功率电平在内部功率控制环路中被控制，其中重复地估计质量测量（51），并且从质量测量（51）产生的控制命令， 以及质量测量参考值（56），其在外部功率控制环路中根据对在时间间隔期间接收的信号计算的性能水平（52）进行调节。 第一值（54）根据在第一扰码下传输的所有信号的时间间隔的性能水平（52）进行调节，并在这样的时间间隔期间使用。 根据在第二扰码下传送的至少一些信号的时间间隔的性能水平（52）来调整第二值（55），并且在这样的时间间隔的至少一部分期间使用第二值。

公开(公告)号：EP1672807A1

公开(公告)日：2006-06-21

申请号：EP04388092.1

申请日：2004-12-20

申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ)

发明人： Cedergren, Andreas ,  Jonsson, Elias

IPC分类号： H04B1/707 ,  G06F7/52

CPC分类号： G06F7/49936 ,  G06F7/523 ,  H04B1/712 ,  H04B7/0842 ,  H04B2201/70707 ,  H04B2201/709727

摘要： Coded digital data symbols sent through a transmission channel of a communications network are received in a receiver. Estimates (y) represented by a first number (a+b) of bits are calculated, and modified estimates (y') represented by a second number (c) of bits provided therefrom, the second number being lower than the first number. An amplitude value is calculated for each estimate (y), and an averaged amplitude value calculated for a number of amplitude values. A scaling factor (s) is calculated from the averaged amplitude value, and scaled estimates generated in dependence of the scaling factor. The scaling factor is used for a number of scaled estimates corresponding to the number of amplitude values for which the averaged amplitude value was calculated. Thus a better scaling factor is provided for most channel cases, which can still be calculated with the limited computational resources of a terminal for such networks.

摘要翻译： 通过通信网络的传输信道发送的编码数字数据符号在接收机中被接收。 计算由第一数字（a + b）表示的估计（y），并且由由其提供的第二数量（c）表示的修改估计（y'），第二数目低于第一数目。 对于每个估计（y）计算振幅值，并且对于振幅值的数量计算的平均振幅值。 根据平均振幅值计算缩放因子，并根据缩放因子生成缩放估计值。 缩放因子用于与计算平均振幅值的振幅值的数量相对应的多个缩放估计。 因此，为大多数信道情况提供了更好的缩放因子，这仍然可以用这种网络的终端的有限的计算资源来计算。

公开(公告)号：EP1480350A1

公开(公告)日：2004-11-24

申请号：EP03388067.5

申请日：2003-10-13

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： Jonsson, Elias ,  Nilsson, Johan ,  Lindoff, bengt

IPC分类号： H04B1/707 ,  H04L25/02

CPC分类号： H04L25/0228 ,  H04B1/712

摘要： A method of determining a channel estimate of a first transmission channel in a communications system. The method comprises deriving a first set of channel estimates from symbols received through said first transmission channel; deriving a second set of channel estimates from symbols received through a second transmission channel in the communications system; determining a scale factor between the first and second sets of channel estimates from a least squares error criterion; and determining the channel estimate of the first transmission channel as a channel estimate of the second transmission channel scaled by the determined scale factor.