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    • 7. 发明申请
    • METHOD AND NETWORK NODE FOR HANDLING AGC AND TPC SCALING
    • 用于处理AGC和TPC缩放的方法和网络节点
    • WO2015036049A1
    • 2015-03-19
    • PCT/EP2013/069103
    • 2013-09-16
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    • SAHLIN, HenrikPERSSON, Anders
    • H04L25/02
    • H04W52/52H03G3/3042H03G3/3089H04L25/0202H04L25/0232H04L25/0236H04W52/40
    • The embodiments herein relate to a method in a first network node (301 ) for handling Automatic Gain Control, AGC, scaling and Transmit Power Control, TPC, scaling of a signal received from a second network node (305). The first network node AGC compensates the signal for any AGC scaling changes. The AGC compensating the signal results in an AGC compensated signal comprising a constant AGC scaling. The first network node detects a TPC scaling change of the signal. The detection is based on the signal after the TPC scaling change and based on a predicted channel estimate. The predicted channel estimate is based on the signal before the TPC scaling change. The first network node TPC compensates for the detected TPC scaling change. The TPC compensation results in an AGC and TPC compensated signal comprising the constant AGC scaling and a constant TPC scaling according to the detected TPC scaling change.
    • 本文的实施例涉及用于处理从第二网络节点(305)接收的信号的自动增益控制,AGC,缩放和发射功率控制(TPC)缩放的第一网络节点(301)中的方法。 第一个网络节点AGC补偿任何AGC缩放变化的信号。 补偿信号的AGC导致包括恒定AGC缩放的AGC补偿信号。 第一个网络节点检测信号的TPC比例变化。 该检测基于TPC缩放变化之后的信号,并且基于预测的信道估计。 预测的信道估计是基于TPC缩放变化前的信号。 第一个网络节点TPC补偿检测到的TPC缩放变化。 TPC补偿导致包括恒定AGC缩放的AGC和TPC补偿信号,以及根据检测到的TPC缩放变化的恒定TPC缩放。
    • 9. 发明申请
    • A PHASE REFERENCE SYMBOL FORMAT FOR OFDM PHASE SYNCHRONIZATION
    • OFDM相位同步的相位参考符号格式
    • WO2014154294A1
    • 2014-10-02
    • PCT/EP2013/056754
    • 2013-03-28
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    • PERSSON, AndersSAHLIN, Henrik
    • H04L5/00
    • H04L27/2613H04L5/0044H04L5/0091H04L27/2092
    • The present invention describes an orthogonal frequency-division multiplexing, OFDM, transmitter and a method for embedding phase reference symbols into an OFDM symbol. The invention comprises a single-carrier pre-processing unit arranged to receive phase reference symbols and provide pre-processed phase reference samples as output and an OFDM modulator arranged to receive data symbols and the pre-processed phase reference samples as input and map the data symbols to sub-carriers and embed the single-carrier samples into a frequency sub-band of the OFDM symbol. While the invention particularly relates to an OFDM communication system, it should be noted that it could be applicable to any type of multicarrier communication system.
    • 本发明描述了正交频分复用,OFDM,发射机和用于将相位参考符号嵌入到OFDM符号中的方法。 本发明包括单载波预处理单元,被配置为接收相位参考符号并且提供预处理的相位参考样本作为输出,并且OFDM调制器被布置为接收数据符号并且将预处理的相位参考样本作为输入并映射数据 将符号转换为子载波,并将单载波样本嵌入到OFDM符号的频率子带中。 虽然本发明特别涉及OFDM通信系统,但是应当注意,其可以适用于任何类型的多载波通信系统。
    • 10. 发明申请
    • LOAD ESTIMATION IN WIRELESS COMMUNICATION
    • 无线通信中的负载估计
    • WO2011031193A1
    • 2011-03-17
    • PCT/SE2009/051003
    • 2009-09-08
    • TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)PERSSON, AndersWIGREN, Karl Torbjörn
    • PERSSON, AndersWIGREN, Karl Torbjörn
    • H04B17/00H04B7/005
    • H04B17/309H04B17/327H04B17/336H04B17/345
    • A method for noise rise estimation in a wireless communication system comprises measuring (210) of received total wideband power a plurality of times and computing (212) an estimate of a noise floor measure based on a number of the measured received total wideband powers. An interference whitening is performed (214) based on one of GRAKE, GRAKE+ and chip equalizer. A useful signal power for the first user after interference whitening is determined (216). A first user noise floor compensation factor is derived (218) based on combining weights for the first user used in the interference whitening. A code power to interference ratio measure for said first user is obtained (220). A noise rise measure is calculated (222), based at least on the useful signal power for the first user after interference whitening, the first user noise floor compensation factor, the code power to interference ratio measure for the first user and the noise floor measure.
    • 一种用于无线通信系统中的噪声上升估计的方法包括:多次测量接收到的总宽带功率(210),并且基于所测量的接收总宽带功率的数量来计算(212)噪声基底测量的估计。 基于GRAKE,GRAKE +和码片均衡器之一进行干涉白化(214)。 确定干扰白化之后第一用户的有用信号功率(216)。 基于在干扰增白中使用的第一用户的组合权重导出(218)第一用户噪声基底补偿因子。 获得所述第一用户的代码功率对干扰比测量值(220)。 至少基于第一用户在干扰白化之后的有用信号功率,第一用户噪声底限补偿因子,第一用户的码功率对干扰比测量值和噪声基底测量值来计算噪声上升测量(222) 。