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    • 2. 发明授权
    • Transceiver arrangement and communication device
    • US09900044B2
    • 2018-02-20
    • US15113342
    • 2014-01-21
    • Telefonaktiebolaget L M Ericsson (publ)
    • Henrik Sjoland
    • H04B1/525H04L5/14H04L27/20H04L12/26
    • H04B1/525H04L5/14H04L27/201H04L43/028
    • 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.
    • 4. 发明授权
    • System and method for coherent multi-h continuous phase modulation waveform
    • 相干多h连续相位调制波形的系统和方法
    • US07421006B2
    • 2008-09-02
    • US10800691
    • 2004-03-16
    • Paul Edward Voglewede
    • Paul Edward Voglewede
    • H04B1/713
    • H04B1/713H04B1/7156H04L27/201
    • 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.
    • 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。
    • 5. 发明申请
    • Method and apparatus for generating M-ary CPM waveforms from a superposition of PAM waveforms
    • 从PAM波形叠加产生M-ary CPM波形的方法和装置
    • US20070002986A1
    • 2007-01-04
    • US11174263
    • 2005-06-30
    • Marilynn Green
    • Marilynn Green
    • H03K7/02
    • H04L27/201H04L25/4917
    • 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
    • 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。
    • 6. 发明申请
    • VERFAHREN UND VORRICHTUNG ZUR BESTIMMUNG EINER EXTRINSISCHEN INFORMATION
    • 方法和设备,用来确定外部信息
    • WO2012130559A1
    • 2012-10-04
    • PCT/EP2012/053723
    • 2012-03-05
    • ROHDE & SCHWARZ GMBH & CO. KGDETERT, ThorbenVOLYANSKIY, Mikhail
    • DETERT, ThorbenVOLYANSKIY, Mikhail
    • H04L25/06H04L27/233
    • H04L27/201H04L25/03171H04L25/067H04L27/2331
    • Eine Vorrichtung zur Detektion eines Schätzwerts ( â k ) für ein Symbol ( a k ) in einem bestimmten Zeitpunkt ( k ), das einer Phasenmodulation zugeführt und über einen Übertragungskanal mit einer zeitlich veränderlichen Phase ( θ k ) übertragen wird, hat eine Einheit (1) zur Ermittlung von logarithmierten Gewichtungsfaktoren in Vorwärtsrekursion, eine Einheit (3) zur Ermittlung von komplexen Koeffizienten in Vorwärtsrekursion, eine Einheit (4) zur Ermittlung von logarithmierten Gewichtungsfaktoren in Rückwärtsrekursion, eine Einheit (5) zur Ermittlung von komplexen Koeffizienten in Rückwärtsrekursion, eine Einheit (7) zur Ermittlung einer extrinsischen Information, eine Einheit (2) zur Ermittlung des Phasenfaktors beim maximalen Gewichtungsfaktor in Vorwärtsrekursion und eine Einheit (6) zur Ermittlung des Phasenfaktors beim maximalen Gewichtungsfaktor in Rückwärtsrekursion.
    • 一种用于检测一个码元(AK)的估计值(k)的设备是提供给相位调制,并且经由在一个特定的时间(K),其具有随时间变化的相位(?K)的传输信道被发送时,具有单元(1) 用于确定对数加权因子在前向递推,一个单元(3),用于前向递推,单元(4),用于确定在后向递推对数加权因子,一个单元(5)为复系数的反向递归的确定,一个单元的复系数的确定( 7),用于确定一个非本征信息,用于前向递推确定在最大加权因子的相位因子的单元(2)和用于确定在后向递推最大加权因子的相位因子的单元(6)。
    • 9. 发明申请
    • Method And Apparatus For Generating M-ary CPM Waveforms From A Superposition Of PAM Waveforms
    • 用于从PAM波形的叠加产生M-ary CPM波形的方法和装置
    • US20100195769A1
    • 2010-08-05
    • US12699307
    • 2010-02-03
    • Marilynn P. Green
    • Marilynn P. Green
    • H03D1/24
    • H04L27/201H04L25/4917
    • 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
    • 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
    • 10. 发明申请
    • System and method for coherent multi-h continuous phase modulation waveform
    • 相干多h连续相位调制波形的系统和方法
    • US20050207474A1
    • 2005-09-22
    • US10800691
    • 2004-03-16
    • Paul Voglewede
    • Paul Voglewede
    • H04B1/713H04L27/20
    • H04B1/713H04B1/7156H04L27/201
    • 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.
    • 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。