公开(公告)号：US07106821B2

公开(公告)日：2006-09-12

申请号：US09804744

申请日：2001-03-13

申请人： Takashi Usui ,  Ralf Boehnke ,  Thomas Doelle ,  Tino Konschak

发明人： Takashi Usui ,  Ralf Boehnke ,  Thomas Doelle ,  Tino Konschak

IPC分类号： H04L25/38 ,  H04L7/00 ,  H04J3/06

CPC分类号： H04L5/0048 ,  H04L7/041 ,  H04L7/046 ,  H04L27/2613 ,  H04L27/2657 ,  H04L27/2662

摘要： A data modulation method and a data modulation device and a communication device are disclosed. The present invention relates to the synchronization and training preamble. The reference symbol optimized in order to contain the structure of “IA-A-IA-A-A-IA-A-IA-IA” is allocated to sub-carriers of the OFDM symbol. More specifically, by designing the structure of the preamble of the time domain, distinction from the other communication system can be certainly conducted holding the correctness of the clock synchronization. Also, we have adopted the series having low peak average ratio and dynamic range of sync symbol using the OFDM. Since the generation and the detection processings can be conducted in utilizing the generation device and the detection device of the sync preamble used in the convention system, this system has an advantage in increasing the common use of the LSI chip. We have made the sync series divided into 2 parts A and B before to one B region and made this to have simple construction.

公开(公告)号：US06654339B1

公开(公告)日：2003-11-25

申请号：US09479281

申请日：2000-01-06

申请人： Ralf Böhnke ,  Thomas Dölle ,  Tino Konschak

发明人： Ralf Böhnke ,  Thomas Dölle ,  Tino Konschak

IPC分类号： H04J1100

CPC分类号： H04L25/03343 ,  H04L5/0007 ,  H04L5/0042 ,  H04L27/2613 ,  H04L27/262 ,  H04L27/2626 ,  H04L27/2657 ,  H04L27/2662

摘要： The present invention proposes a method for generating synchronization bursts for OFDM transmission systems. The symbols of a predefined symbol sequence are mapped according to a predefined mapping scheme on subcarriers of the OFDM systems by a mapping unit (2), wherein the symbols of the predefined symbol sequence represent subcarriers of the OFDM system with nonzero amplitudes. A synchronization burst is generated by a inverse fast Fourier transforming unit (3) transforming the subcarriers of the OFDM system mapped to said predefined symbol sequence. The mapping (2) of the symbols of the predefined symbol sequence is set such that the resulting time domain signal of the synchronization burst represents a periodic nature. According to the invention the predefined symbol sequence is set such that the envelope fluctuation of the time domain signal of the synchronization burst is minimized. Therefore advantageous symbol sequences reducing said the envelope fluctuation of the time domain signal are proposed.

摘要翻译： 本发明提出了一种用于生成用于OFDM传输系统的同步突发的方法。 预定义符号序列的符号由映射单元（2）根据OFDM系统的子载波根据预定义的映射方案进行映射，其中预定符号序列的符号表示具有非零幅度的OFDM系统的子载波。 由快速傅里叶逆变换单元（3）生成映射到所述预定符号序列的OFDM系统的子载波的同步突发。 将预定义符号序列的符号的映射（2）设置为使得所得到的同步突发的时域信号表示周期性。 根据本发明，预定义的符号序列被设置为使得同步脉冲串的时域信号的包络波动最小化。 因此，提出了减少时域信号的包络波动的有利符号序列。

公开(公告)号：US07154975B1

公开(公告)日：2006-12-26

申请号：US09510652

申请日：2000-02-22

申请人： Ralf Böhnke ,  Thomas Dölle ,  Tino Konschak

发明人： Ralf Böhnke ,  Thomas Dölle ,  Tino Konschak

IPC分类号： H04L25/38

CPC分类号： H04L7/041 ,  H04L7/046

摘要： A receiving apparatus (1) for receiving signals in a digital telecommunication system and a synchronizing method for synchronizing the receiving apparatus (1). The receiving apparatus (1) includes a receiver (2, 3) for receiving a reference symbol having at least two repetition patterns. One of the repetition patterns is phase-shifted in relation to the other. The receiving apparatus (1) is synchronized in the digital telecommunication system using the received reference symbol. The synchronization includes a cross correlation of at least one of the two repetition patterns within a cross correlation window having a predetermined length. In this manner, the performance and the accuracy of a cross correlation peak detection can be enhanced for improved synchronization.

摘要翻译： 一种用于在数字电信系统中接收信号的接收装置（1）和用于同步接收装置（1）的同步方法。 接收装置（1）包括用于接收具有至少两个重复模式的参考符号的接收器（2,3）。 其中一个重复模式相对于另一个相移。 接收设备（1）在数字电信系统中使用接收的参考符号进行同步。 同步包括具有预定长度的互相关窗中的两个重复图案中的至少一个的互相关。 以这种方式，可以增强互相关峰值检测的性能和精度，以改善同步。

公开(公告)号：US07424079B2

公开(公告)日：2008-09-09

申请号：US11498080

申请日：2006-08-03

申请人： Ralf Bohnke ,  Thomas Dolle ,  Tino Konschak

发明人： Ralf Bohnke ,  Thomas Dolle ,  Tino Konschak

IPC分类号： H04L25/38

CPC分类号： H04L7/041 ,  H04L7/046

摘要： A receiving apparatus for receiving signals in a digital telecommunication system and a synchronizing method for synchronizing the receiving apparatus. The receiving apparatus includes a receiver for receiving a reference symbol having at least two repetition patterns. One of the, repetition patterns is phase-shifted in relation to the other. The receiving apparatus is synchronized in the digital telecommunication system using the received reference symbol. The synchronization includes a cross correlation of at least one of two repetition patterns within a cross correlation window having a predetermined length. In this manner, the performance and the accuracy of a cross correlation peak detection can be enhanced for improved synchronization.

摘要翻译： 一种用于在数字电信系统中接收信号的接收装置和用于同步接收装置的同步方法。 接收装置包括用于接收具有至少两个重复模式的参考符号的接收器。 其中一个重复模式相对于另一个相移。 接收设备在数字电信系统中使用接收的参考符号进行同步。 同步包括具有预定长度的互相关窗中的两个重复图案中的至少一个的互相关。 以这种方式，可以增强互相关峰值检测的性能和精度，以改善同步。

公开(公告)号：US20060269008A1

公开(公告)日：2006-11-30

申请号：US11498080

申请日：2006-08-03

申请人： Ralf Bohnke ,  Thomas Dolle ,  Tino Konschak

发明人： Ralf Bohnke ,  Thomas Dolle ,  Tino Konschak

IPC分类号： H04K1/10 ,  H04L27/06 ,  H04L7/00

CPC分类号： H04L7/041 ,  H04L7/046

摘要： A receiving apparatus (1) for receiving signals in a digital telecommunication system and a synchronizing method for synchronizing the receiving apparatus (1). The receiving apparatus (1) includes a receiver (2, 3) for receiving a reference symbol having at least two repetition patterns. One of the, repetition patterns is phase-shifted in relation to the other. The receiving apparatus (1) is synchronized in the digital telecommunication system using the received reference symbol. The synchronization includes a cross correlation of at least one of two repetition patterns within a cross correlation window having a predetermined length. In this manner, the performance and the accuracy of a cross correlation peak detection can be enhanced for improved synchronization.

摘要翻译： 一种用于在数字电信系统中接收信号的接收装置（1）和用于同步接收装置（1）的同步方法。 接收装置（1）包括用于接收具有至少两个重复模式的参考符号的接收器（2,3）。 其中一个重复模式相对于另一个相移。 接收设备（1）在数字电信系统中使用接收的参考符号进行同步。 同步包括具有预定长度的互相关窗中的两个重复图案中的至少一个的互相关。 以这种方式，可以增强互相关峰值检测的性能和精度，以改善同步。

公开(公告)号：US06704562B1

公开(公告)日：2004-03-09

申请号：US09593676

申请日：2000-06-14

申请人： Gerald Oberschmidt ,  Veselin Brankovic ,  Dragan Krupezevic ,  Masayoshi Abe ,  Thomas Dölle ,  Tino Konschak

发明人： Gerald Oberschmidt ,  Veselin Brankovic ,  Dragan Krupezevic ,  Masayoshi Abe ,  Thomas Dölle ,  Tino Konschak

IPC分类号： H04B106

CPC分类号： H03D3/00

摘要： A RF receiver for modulated RF signals based on a N-port junction (1) providing LO/RF isolation is proposed. N thereby is an integer larger than two, such that the N-port junction (1) can be preferably a three port, four port, five port and six port junction. The N-port junction (1) supplied with a first RF signal at a first input (2) and with a second RF signal originating from a local oscillator (2) at a second input (3). An isolation block (13) comprising an active circuitry (22) is comprised in the N-port junction for isolating the second input (3) from the first input (1). Thereby can be ensured that the LO signals are significantly attenuated at the RF port (2).

摘要翻译： 提出了一种基于提供LO / RF隔离的N端口结（1）的调制RF信号的RF接收器。 N因此是大于2的整数，使得N端口结（1）可以优选为三端口，四端口，五端口和六端口结。 N端口结（1）在第一输入（2）处提供有第一RF信号，并在第二输入（3）处提供源自本地振荡器（2）的第二RF信号。 包括有源电路（22）的隔离块（13）包括在N端口结中，用于将第二输入（3）与第一输入（1）隔离。 从而可以确保LO信号在RF端口（2）处被显着衰减。

公开(公告)号：US06803814B1

公开(公告)日：2004-10-12

申请号：US09502656

申请日：2000-02-11

申请人： Dragan Krupezevic ,  Veselin Brankovic ,  Gerald Oberschmidt ,  Masayoshi Abe ,  Tino Konschak ,  Thomas Dölle

发明人： Dragan Krupezevic ,  Veselin Brankovic ,  Gerald Oberschmidt ,  Masayoshi Abe ,  Tino Konschak ,  Thomas Dölle

IPC分类号： H03D300

CPC分类号： H04L27/38 ,  H03D9/04

摘要： A demodulator for modulated RF signals comprises a passive four port structure (1). The four port structure (1) has a first input (3) for supplying a modulated RF signal to be demodulated. A second input (2) is supplied with a RF signal from a local oscillator (21). Two output terminals are connected to power sensors (4, 5). The RF signal from the local oscillator (21) is supplied to the second input (3) of the four port structure (1) without being RF switched by an RF switch. The demodulator is particularly useful for modulation schemes with a finite number of magnitude states (nQAM modulation).

摘要翻译： 用于调制RF信号的解调器包括无源四端口结构（1）。 四端口结构（1）具有用于提供待解调的调制RF信号的第一输入端（3）。 第二输入（2）被提供有来自本地振荡器（21）的RF信号。 两个输出端子连接到功率传感器（4,5）。 来自本地振荡器（21）的RF信号被提供给四端口结构（1）的第二输入端（3），而不用RF开关进行RF切换。 解调器对于具有有限数量级的状态（nQAM调制）的调制方案特别有用。

公开(公告)号：US06748203B1

公开(公告)日：2004-06-08

申请号：US09672643

申请日：2000-09-28

申请人： Veselin Brankovic ,  Dragan Krupezevic ,  Gerald Oberschmidt ,  Tino Konschak ,  Thomas Dölle ,  Hamid Amir-Alikhani ,  Masayoshi Abe

发明人： Veselin Brankovic ,  Dragan Krupezevic ,  Gerald Oberschmidt ,  Tino Konschak ,  Thomas Dölle ,  Hamid Amir-Alikhani ,  Masayoshi Abe

IPC分类号： H04B106

CPC分类号： H04B1/30 ,  H03D3/007 ,  H04L27/38

摘要： A three port structure for the down conversion demodulation of a digitally modulated RF signal is proposed, wherein no RF switches are provided. The three port structure (1) has a first input (2) for the RF signal to be down converted and a second input (3) for a RF signal originating from a local oscillator (8). An output (4) of the three port structure (1) is supplied to a power sensor unit (5). The RF signal from the local oscillator (8) is modulated (7) before it is supplied to the three port structure (1).

摘要翻译： 提出了一种用于数字调制RF信号的下变频解调的三端口结构，其中不提供RF开关。 三端口结构（1）具有用于RF信号被降频转换的第一输入端（2）和用于源自本地振荡器（8）的RF信号的第二输入端（3）。 三端口结构（1）的输出（4）被提供给功率传感器单元（5）。 来自本地振荡器（8）的RF信号在被提供给三端口结构（1）之前被调制（7）。

公开(公告)号：US06728550B1

公开(公告)日：2004-04-27

申请号：US09611851

申请日：2000-07-07

申请人： Ralf Böhnke ,  Thomas Dölle ,  Tino Konschak

发明人： Ralf Böhnke ,  Thomas Dölle ,  Tino Konschak

IPC分类号： H04B700

CPC分类号： H04W52/04 ,  H04W48/20 ,  H04W74/08

摘要： The present invention relates to a base station (1, 10, 20) and a mobile terminal (40, 50, 60) as well as a communication method for communicating in a wireless radio communication system. Thereby, the information is transmitted and received in medium access control frames of the communication system, whereby the transmission power of at least a broadcast control channel and a frame control channel in a respective medium access control frame transmitted by a base station is increased after certain time intervals to an increased transmission power level as compared to the transmission power level of other medium access control frames transmitted during said time intervals. The transmission of at least a broadcast control channel and a frame control channel with significantly increased power levels from time to time allows new mobile terminals trying to gain access to a base station to connect with this base station even if the effectively used transmission power is reduced on the basis of the transmission conditions of already connected mobile terminals.

摘要翻译： 本发明涉及基站（1,10,20）和移动终端（40,50,60）以及用于在无线无线电通信系统中进行通信的通信方法。 因此，在通信系统的媒体接入控制帧中发送和接收信息，由此基站发送的各媒体接入控制帧中的至少广播控制信道和帧控制信道的发送功率在确定之后增加 与在所述时间间隔期间发送的其他介质访问控制帧的传输功率电平相比，增加的发射功率电平的时间间隔。 至少有广播控制信道和具有显着增加的功率电平的帧控制信道的传输不时地允许新的移动终端试图获得接入基站以与该基站连接，即使有效使用的传输功率被减少 在已经连接的移动终端的传输条件的基础上。

公开(公告)号：US06674817B1

公开(公告)日：2004-01-06

申请号：US09545759

申请日：2000-04-10

申请人： Thomas Dölle ,  Ralf Böhnke ,  Tino Konschak

发明人： Thomas Dölle ,  Ralf Böhnke ,  Tino Konschak

IPC分类号： H03D100

CPC分类号： H04L7/041 ,  H04B7/2656

摘要： A communication device for transmitting and receiving control and user data bursts in a digital telecommunication system. Data bursts including bursts of a first type and bursts of a second type different from the first type, are received, with the first type bursts comprising a first training sequence and the second type bursts comprising a second training sequence, Data of the received data bursts are auto-correlated; and the type of a received data burst is recognized on the basis of a phase value of the auto-correlation result of the training sequence of the data burst.

摘要翻译： 一种用于在数字电信系统中发送和接收控制和用户数据突发的通信设备。 接收包括不同于第一类型的第一类型的突发和不同于第一类型的第二类型的突发的数据突发，其中第一类型突发包括第一训练序列，并且第二类型突发包括第二训练序列，接收数据突发的数据 是自相关的 并且基于数据脉冲串的训练序列的自相关结果的相位值来识别接收数据脉冲串的类型。