公开(公告)号：US09900044B2

公开(公告)日：2018-02-20

申请号：US15113342

申请日：2014-01-21

Applicant: Telefonaktiebolaget L M Ericsson (publ)

Inventor： Henrik Sjoland

IPC: H04B1/525 ,  H04L5/14 ,  H04L27/20 ,  H04L12/26

CPC classification number: H04B1/525 ,  H04L5/14 ,  H04L27/201 ,  H04L43/028

Abstract: A transceiver arrangement is disclosed. The transceiver arrangement comprises a receiver arranged for frequency-division duplex communication with a communication network and a transmitter arranged for frequency-division duplex communication with the communication network. The transceiver arrangement also comprises a transmission port anda phase shifter arrangement which comprises a first 180° phase shifter and a second 180° phase shifter. The transceiver arrangement further comprises a filtering arrangement. The filtering arrangement comprises filters of a first type and filters of a second type. The filtering arrangement and the phase shifter arrangement are arranged to connect the receiver, transmitter and transmission port forming a first signal path between the transmission port and the transmitter by a first one of the filters of the first type and the first phase shifter in series, a second signal path between the transmission port and the transmitter by a second one of the filters of the first type and a first one of the filters of the second type in series, a third signal path between the transmission port and the receiver by a second one of the filters of the second type and the second phase shifter in series, and a fourth signal path between the transmission port and the receiver by a third one of the filters of the second type and a third one of the filters of the first type in series. The filters of the first type are arranged to pass signals at transmitter frequency and attenuate signals at receiver frequency, and the filters of the second type are arranged to attenuate signals at transmitter frequency and pass signals at receiver frequency. A communication device capable of frequency division duplex communication comprising such a transceiver arrangement is also disclosed.

公开(公告)号：US4656646A

公开(公告)日：1987-04-07

申请号：US846497

申请日：1986-03-27

Applicant: Carl R. Ryan

Inventor： Carl R. Ryan

IPC: H04L27/20 ,  H04L27/10

CPC classification number: H04L27/201

Abstract: An apparatus and method is disclosed of an SMSK/2 device that provides an additional phase state, and having at least three phase changes possible per bit period, as compared with standard SMSK/2 devices. The additional phase state increases the bit time needed for the signals to remerge which increases the euclidean distance defined by the remergence paths. The increase in euclidean distance provides an improved power efficiency and bit error rate (BER).

Abstract translation: 公开了一种提供附加相位状态并且与标准SMSK / 2设备相比具有每位周期可能的至少三个相位改变的SMSK / 2设备的装置和方法。 附加相位状态增加信号重新聚合所需的位时间，这增加了由重合路径定义的欧几里德距离。 欧几里德距离的增加提高了功率效率和误码率（BER）。

公开(公告)号：US07421006B2

公开(公告)日：2008-09-02

申请号：US10800691

申请日：2004-03-16

Applicant: Paul Edward Voglewede

Inventor： Paul Edward Voglewede

IPC: H04B1/713

CPC classification number: H04B1/713 ,  H04B1/7156 ,  H04L27/201

Abstract: A system and method improves ECCM and data payload for a multi-h continuous phase modulated waveform with the addition of frequency hopping capabilities. The system and method exploit the short constraint length and rotational invariance of the multi-h CPM waveform to enable frequency hopping using current system capabilities. The transmitted data is structured such that the initial phase state of each hopping frame is in the zero state and the final phase state of each hopping frame is cycled to zero by the addition of flushing symbols and transition symbols. The transition symbols allow the oscillator to change frequency without disrupting the phase progression. The system and method uses synchronous demodulation of the transmitted data at a plurality of phase offsets and determines the best phase offset based on the total sum of the branch metrics for each symbol and phase offset. The system and method alternatively demodulated with a phase offset that is tracked and adjusted over each hop by accumulation of the frequency error.

Abstract translation: 一种系统和方法通过添加跳频功能来改进多小时连续相位调制波形的ECCM和数据有效载荷。 该系统和方法利用多h CPM波形的短约束长度和旋转不变性，以使用当前系统功能启用跳频。 发送的数据被构造成使得每个跳频帧的初始相位状态处于零状态，并且通过添加冲洗符号和转换符号将每个跳变帧的最终相位状态循环为零。 转换符号允许振荡器改变频率，而不会中断相位进展。 该系统和方法使用多个相位偏移的发射数据的同步解调，并且基于每个符号和相位偏移的分支度量的总和来确定最佳相位偏移。 该系统和方法用相位偏移方式交替解调，该相位偏移通过频率误差的累积在每一跳上被跟踪和调整。

公开(公告)号：US20070002986A1

公开(公告)日：2007-01-04

申请号：US11174263

申请日：2005-06-30

Applicant: Marilynn Green

Inventor： Marilynn Green

IPC: H03K7/02

CPC classification number: H04L27/201 ,  H04L25/4917

Abstract: To reflect advantages of a constant phase modulation waveform, the invention provides a pulse amplitude modulated PAM waveform that is a superposition of Q0≦2L-1 PAM component pulses in each symbol interval such that a significant portion of signal energy over each symbol interval is within the Q0 PAM component pulses. The present invention distributes most signal energy in one pulse and progressively lower energies in the remaining Q0−1 pulses of a symbol interval. The Laurent Decomposition is a special case of the present invention, but the present invention exhibits the energy distribution of the Laurent Decomposition in non-binary CPM waveforms and in multi-h (binary and non-binary) CPM waveforms, where h is a modulating index. All energy is distributed among only Q=2L-1 pulses in each symbol interval, though only Q0

Abstract translation: 为了反映恒定相位调制波形的优点，本发明提供了一种脉冲幅度调制的PAM波形，其是Q 0/2> = 2 L-1 PAM分量脉冲的叠加 每个符号间隔使得每个符号间隔上的信号能量的相当大的部分在Q PAM分量脉冲内。 本发明在一个脉冲中分配大部分信号能量，并且在符号间隔的剩余Q 0 SUB-1脉冲中逐渐降低能量。 Laurent分解是本发明的特殊情况，但是本发明在非二进制CPM波形和多h（二进制和非二进制）CPM波形中展现了Laurent分解的能量分布，其中h是调制 指数。 在每个符号间隔中，所有能量仅分布在Q = 2L-1 脉冲之间，尽管事实上在某些实施例中可以传输Q Q 2脉冲。 公开了一种方法，发射机，接收机和计算机程序。 实施例可以精确地复制CPM波形或近似CPM波形。

公开(公告)号：US09049085B2

公开(公告)日：2015-06-02

申请号：US14009007

申请日：2012-03-05

Applicant: Thorben Detert ,  Mikhail Volyanskiy

Inventor： Thorben Detert ,  Mikhail Volyanskiy

IPC: H03D3/22 ,  H04L27/20 ,  H04L25/03 ,  H04L25/06 ,  H04L27/233

CPC classification number: H04L27/201 ,  H04L25/03171 ,  H04L25/067 ,  H04L27/2331

Abstract: A device for detecting an estimated value for a symbol at a given time, which is supplied to a phase modulation and transmitted via a transmission channel with a time-variable phase, provides a unit for determining log weighting factors in a forward recursion, a unit for determining complex coefficients in a forward recursion, a unit for determining log weighting factors in a backward recursion, a unit for determining complex coefficients in a backward recursion, a unit for determining an extrinsic information, a unit for determining the phase factor with the maximal weighting factor in a forward recursion and a unit for determining the phase factor with the maximal weighting factor in a backward recursion.

Abstract translation: 用于检测给定时间的符号的估计值的装置，其被提供给相位调制并且经由具有时变相位的传输信道发送，提供用于确定正向递归中的对数加权因子的单元，单元 用于确定正向递归中的复系数，用于确定反向递归中的对数加权因子的单元，用于确定反向递归中的复系数的单元，用于确定外在信息的单元，用于确定具有最大值的相位因子的单元 正向递归中的加权因子和用于在向后递归中用最大加权因子确定相位因子的单元。

公开(公告)号：US08385456B2

公开(公告)日：2013-02-26

申请号：US12572163

申请日：2009-10-01

Applicant: Jr-I Lee ,  Yen-Lin Huang ,  Yen-Tso Chen ,  Chia-Jung Chang

Inventor： Jr-I Lee ,  Yen-Lin Huang ,  Yen-Tso Chen ,  Chia-Jung Chang

IPC: H04L27/04 ,  H04L27/06 ,  H04L25/06

CPC classification number: H04L27/201 ,  H01L24/48 ,  H01L24/49 ,  H01L2224/48091 ,  H01L2224/49109 ,  H01L2224/49113 ,  H01L2924/00014 ,  H01L2924/30107 ,  H01L2924/3011 ,  H01L2924/30111 ,  H03D7/1441 ,  H03D7/1483 ,  H03D2200/0025 ,  H03D2200/0043 ,  H03D2200/0047 ,  H03F1/223 ,  H03F1/565 ,  H03F3/195 ,  H03F3/45183 ,  H03F3/45892 ,  H03F2200/222 ,  H03F2200/294 ,  H03F2200/318 ,  H03F2200/375 ,  H03F2200/387 ,  H03F2203/45638 ,  H03F2203/45641 ,  H03F2203/45644 ,  H03F2203/45646 ,  H03F2203/45652 ,  H03F2203/45702 ,  H03F2203/45726 ,  H03F2203/45728 ,  H01L2924/00 ,  H01L2224/45099 ,  H01L2224/05599

Abstract: A differential radio frequency signal transmitter is provided. The differential radio frequency signal transmitter includes an oscillator, a modulator and an amplifier module. The oscillator generates a pair of differential oscillation signals. The modulator generates a pair of differential modulated signals according to an input signal and the pair of differential oscillation signals. The input signal is a digital signal. When the input signal is at a first state, the modulator outputs the pair of differential oscillation signals as the pair of differential modulated signals, and when the input signal is at a second state, the modulator outputs a constant voltage signal as the pair of differential modulated signals. The amplifier module receives and amplifies the pair of differential modulated signals and generates a pair of differential radio frequency signals, accordingly.

Abstract translation: 提供差分射频信号发射机。 差分射频信号发射机包括振荡器，调制器和放大器模块。 振荡器产生一对差分振荡信号。 调制器根据输入信号和差分振荡信号对产生一对差分调制信号。 输入信号是数字信号。 当输入信号处于第一状态时，调制器输出一对差分振荡信号作为一对差分调制信号，当输入信号处于第二状态时，调制器输出一个恒定电压信号作为差分对 调制信号。 放大器模块接收并放大该对差分调制信号，并相应地产生一对差分射频信号。

公开(公告)号：US20100195769A1

公开(公告)日：2010-08-05

申请号：US12699307

申请日：2010-02-03

Applicant: Marilynn P. Green

Inventor： Marilynn P. Green

IPC: H03D1/24

CPC classification number: H04L27/201 ,  H04L25/4917

Abstract: To reflect advantages of a constant phase modulation waveform, the invention provides a pulse amplitude modulated PAM waveform that is a superposition of Q0≦2L−1 PAM component pulses in each symbol interval such that a significant portion of signal energy over each symbol interval is within the Q0 PAM component pulses. The present invention distributes most signal energy in one pulse and progressively lower energies in the remaining Q0−1 pulses of a symbol interval. The Laurent Decomposition is a special case of the present invention, but the present invention exhibits the energy distribution of the Laurent Decomposition in non-binary CPM waveforms and in multi-h (binary and non-binary) CPM waveforms, where h is a modulating index. All energy is distributed among only Q=2L−1 pulses in each symbol interval, though only Q0

Abstract translation: 为了反映恒定相位调制波形的优点，本发明提供脉冲幅度调制PAM波形，其是每个符号间隔中的Q0和nLE; 2L-1PAM分量脉冲的叠加，使得每个符号间隔上的信号能量的大部分在 Q0 PAM分量脉冲。 本发明在一个脉冲中分配大多数信号能量，并且在符号间隔的剩余Q0-1脉冲中逐渐降低能量。 Laurent分解是本发明的特殊情况，但是本发明在非二进制CPM波形和多h（二进制和非二进制）CPM波形中展现了Laurent分解的能量分布，其中h是调制 指数。 尽管在某些实施例中仅实际上可以传输Q0

公开(公告)号：US20050207474A1

公开(公告)日：2005-09-22

申请号：US10800691

申请日：2004-03-16

Applicant: Paul Voglewede

Inventor： Paul Voglewede

IPC: H04B1/713 ,  H04L27/20

CPC classification number: H04B1/713 ,  H04B1/7156 ,  H04L27/201

Abstract: A system and method improves ECCM and data payload for a multi-h continuous phase modulated waveform with the addition of frequency hopping capabilities. The system and method exploit the short constraint length and rotational invariance of the multi-h CPM waveform to enable frequency hopping using current system capabilities. The transmitted data is structured such that the initial phase state of each hopping frame is in the zero state and the final phase state of each hopping frame is cycled to zero by the addition of flushing symbols and transition symbols. The transition symbols allow the oscillator to change frequency without disrupting the phase progression. The system and method uses synchronous demodulation of the transmitted data at a plurality of phase offsets and determines the best phase offset based on the total sum of the branch metrics for each symbol and phase offset. The system and method alternatively demodulated with a phase offset that is tracked and adjusted over each hop by accumulation of the frequency error.

Abstract translation: 一种系统和方法通过添加跳频功能来改进多小时连续相位调制波形的ECCM和数据有效载荷。 该系统和方法利用多h CPM波形的短约束长度和旋转不变性，以使用当前系统功能启用跳频。 发送的数据被构造成使得每个跳频帧的初始相位状态处于零状态，并且通过添加冲洗符号和转换符号将每个跳变帧的最终相位状态循环为零。 转换符号允许振荡器改变频率，而不会中断相位进展。 该系统和方法使用多个相位偏移的发射数据的同步解调，并且基于每个符号和相位偏移的分支度量的总和来确定最佳相位偏移。 该系统和方法用相位偏移方式交替解调，该相位偏移通过频率误差的累积在每一跳上被跟踪和调整。

公开(公告)号：US09847895B2

公开(公告)日：2017-12-19

申请号：US14430573

申请日：2015-02-04

Applicant: Telefonaktiebolaget L M Ericsson (publ)

Inventor： Miguel Lopez ,  Bo Hagerman ,  Yi-Pin Eric Wang

IPC: H04B7/00 ,  H04L27/20 ,  H04L5/00 ,  H04L7/04 ,  H04L27/22 ,  H04W84/12 ,  H04W4/00

CPC classification number: H04L27/2003 ,  H04L5/0053 ,  H04L7/04 ,  H04L27/201 ,  H04L27/2017 ,  H04L27/22 ,  H04W4/80 ,  H04W84/12

Abstract: A transmitting device (20) overlays control information onto information bit stream intended for a receiving device (40) by varying or shifting the modulation index in continuous phase modulation (CPM) waveform. The receiving device (40) detects the modulation index used at the transmitting device (20) to modulate the data burst. The receiving device (40) then determines the control information based on the detected modulation index.

公开(公告)号：US20160373279A1

公开(公告)日：2016-12-22

申请号：US14430573

申请日：2015-02-04

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： Miguel Lopez ,  Bo Hagerman ,  Yi-Pin Eric Wang

IPC: H04L27/20 ,  H04L27/22 ,  H04L7/04

CPC classification number: H04L27/2003 ,  H04L5/0053 ,  H04L7/04 ,  H04L27/201 ,  H04L27/2017 ,  H04L27/22 ,  H04W4/80 ,  H04W84/12

Abstract: A transmitting device (20) overlays control information onto information bit stream intended for a receiving device (40) by varying or shifting the modulation index in continuous phase modulation (CPM) waveform. The receiving device (40) detects the modulation index used at the transmitting device (20) to modulate the data burst. The receiving device (40) then determines the control information based on the detected modulation index.

Abstract translation: 发射装置（20）通过改变或移动连续相位调制（CPM）波形中的调制指数，将控制信息叠加到用于接收装置（40）的信息比特流上。 接收装置（40）检测在发送装置（20）使用的调制指数，以调制数据脉冲串。 接收装置（40）然后基于检测到的调制指数来确定控制信息。