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1. 发明公开

EP3433984A1 AN ADAPTIVE MICROWAVE COMMUNICATION LINK 有权
公开(公告)号：EP3433984A1
公开(公告)日：2019-01-30
申请号：EP16712039.3
申请日：2016-03-24
申请人： Telefonaktiebolaget LM Ericsson (PUBL)
发明人： OLSSON, Bengt-Erik
IPC分类号： H04L12/803
摘要： A wireless communication link arrangement may include a first network device) and a second network device. The wireless communication link arrangement is arranged for transfer of fronthaul data between these network devices via a wireless communication fronthaul link. Each of said network devices is arranged to constitute a transmitting network device and/or a receiving network device, and at least one network device is arranged to determine the present load on the wireless communication link arrangement. When the present load is determined to exceed a first threshold, at least one network device) comprised in the wireless communication link arrangement, is arranged to determine whether data blocks that are intended to be transmitted by a transmitting network device contain information or not, and to instruct said transmitting network device to only transmit data blocks that have been determined to contain information.

2. 发明授权

EP2875598B1 ELECTRO-OPTICAL IMPLEMENTATION OF AN OPTICAL SPECTRUM INVERTER 失效
标题翻译：光谱分析变换器的电光实现
公开(公告)号：EP2875598B1
公开(公告)日：2016-05-04
申请号：EP12738106.9
申请日：2012-07-19
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： OLSSON, Bengt-Erik , LARSSON, Christina
IPC分类号： H04B10/2531 , H04B10/255 , H04B10/2557 , H04B10/64
CPC分类号： H04B10/6166 , H04B10/2531 , H04B10/255 , H04B10/2557 , H04B10/6163 , H04B10/64 , H04J14/0202 , H04J14/06 , H04L5/14

3. 发明公开

EP2727266A1 INDIVIDUAL INFORMATION IN LOWER AND UPPER OPTICAL SIDEBANDS 失效
标题翻译：个人信息的上下光学边带
公开(公告)号：EP2727266A1
公开(公告)日：2014-05-07
申请号：EP11728006.5
申请日：2011-06-29
申请人： Telefonaktiebolaget LM Ericsson (PUBL)
发明人： OLSSON, Bengt-Erik , MÅRTENSSON, Jonas
IPC分类号： H04B10/50 , H04J14/02
CPC分类号： H04B10/2575 , H04B10/5053 , H04B10/5165 , H04J14/0298
摘要： This disclosure is directed to an optical transmitter arrangement 100 and a method therein producing a first RF-signal UA1 comprising a first set of data A
1 carried by a subcarrier f
C1 , and a second RF-signal UB1 comprising a second set of data B
1 carried by the subcarrier f
C1 . Further producing a first transform signal H(UA1) being a Hilbert Transform of the first RF-signal UA1, and a second transform signal -H(UB1) being a Hilbert Transform of the second RF-signal UB1. In addition, modulating the optical carrier fopt with the first RF-signal UA1 and the first transform signal H(UA1), and forming a first sideband SB
1 comprising the first set of data A
1 at one side of the frequency f
0 of the optical carrier f
opt . In addition, modulating the optical carrier f
opt with the second RF-signal UB1 and the second transform signal -H(UB1), and forming a second sideband SB
2 comprising the second set of data B
1 at the other side of the frequency f
0 of the optical carrier f
opt .

4. 发明授权

EP3005582B1 RADIO LINK WITH REPEATER 有权
公开(公告)号：EP3005582B1
公开(公告)日：2019-01-16
申请号：EP13727153.2
申请日：2013-06-05
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： OLSSON, Bengt-Erik , HANSRYD, Jonas
IPC分类号： H04B7/155

5. 发明公开

EP3335525A1 ROBUST WIRELESS RADIO TRANSMISSION 有权
公开(公告)号：EP3335525A1
公开(公告)日：2018-06-20
申请号：EP15771562.4
申请日：2015-09-23
申请人： Telefonaktiebolaget LM Ericsson (PUBL)
发明人： OLSSON, Bengt-Erik , LINDGREN, Robert
IPC分类号： H04W92/12
摘要： There is provided mechanisms for robust wireless radio transmission. A method is performed by a network node. The method comprises acquiring data to be transmitted on a wireless radio link. The method comprises separating the data into a radio access technology (RAT) payload part and a management data part. The method comprises acquiring channel condition values for the wireless radio link. The method comprises dynamically allocating resources between the RAT payload part and the management data part according to the channel condition values. The method comprises transmitting the data over the wireless radio link using said allocated resources.

6. 发明授权

EP2936707B1 COMMUNICATION SYSTEM FOR A NONLINEAR FIBER CHANNEL 有权
标题翻译： KOMMUNIKATIONSSYSTEMFÜREINEN NICHTLINEAREN FASERKANAL
公开(公告)号：EP2936707B1
公开(公告)日：2017-02-15
申请号：EP12815703.9
申请日：2012-12-21
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： OLSSON, Bengt-Erik , ALPING, Arne
IPC分类号： H04B10/079 , H04J14/02 , H04J14/06 , H04J14/08 , H04L27/20 , H04L27/22 , H04L27/34
CPC分类号： H04B10/2543 , H04B10/07953 , H04B2210/25 , H04J14/02 , H04J14/06 , H04J14/086 , H04L27/2096 , H04L27/223 , H04L27/3444
摘要： A system for communication over a fiber link is disclosed. The system comprises a transmitter to transmit an information signal that comprises an information spectrum, and to transmit two spectrally inverted copies of the information spectrum over the predefined length of the fiber link, the two spectrally inverted copies corresponding to a first spectrum with a first center wavelength and to a second spectrum with a second center wavelength, the second spectrum being inverted relative to the first spectrum and the second center wavelength being different from the first center wavelength, and a receiver to receive the first spectrum and the second spectrum, and to estimate a phase rotation of the second spectrum relative to the first spectrum by comparing a first phase measured from the first spectrum with a second phase measured from the second spectrum.
摘要翻译：公开了一种通过光纤链路进行通信的系统。该系统包括发送器，用于发送包括信息频谱的信息信号，并且在光纤链路的预定长度上发送信息频谱的两个频谱反转副本，对应于具有第一中心的第一频谱的两个频谱反转副本并且具有第二中心波长的第二光谱，第二光谱相对于第一光谱反转，第二中心波长与第一中心波长不同，接收器接收第一光谱和第二光谱，并且通过将从第一光谱测量的第一相位与从第二光谱测量的第二相位进行比较来估计第二光谱相对于第一光谱的相位旋转。

7. 发明公开

EP2936707A1 COMMUNICATION SYSTEM FOR A NONLINEAR FIBER CHANNEL 有权
标题翻译：通信系统非线性光纤通道
公开(公告)号：EP2936707A1
公开(公告)日：2015-10-28
申请号：EP12815703.9
申请日：2012-12-21
申请人： Telefonaktiebolaget LM Ericsson (PUBL)
发明人： OLSSON, Bengt-Erik , ALPING, Arne
IPC分类号： H04B10/2543
CPC分类号： H04B10/2543 , H04B10/07953 , H04B2210/25 , H04J14/02 , H04J14/06 , H04J14/086 , H04L27/2096 , H04L27/223 , H04L27/3444
摘要： The disclosure relates to a system, configured for communication over a fiber link (2) with a predefined length, to a transmitter (1), to a receiver (3) and to a method for communicating over a fiber link (2). The system (6) comprises a transmitter (1) configured for transmitting an information signal, wherein the information signal comprises an information spectrum, and wherein the transmitter (1) is further configured for transmitting two spectrally inverted copies of the information spectrum over the predefined length of the fiber link (2), the two spectrally inverted copies corresponding to a first spectrum with a first center wavelength and to a second spectrum with a second center wavelength, the second spectrum being inverted relative to the first spectrum and the second center wavelength being different from the first center wavelength, and a receiver (3) configured for receiving the first spectrum and the second spectrum, the receiver (3) comprising a signal processing unit (7) configured for estimating a phase rotation of the second spectrum relative to the first spectrum by comparing a first phase measured from the first spectrum received with a second phase measured from the second spectrum received such that the estimated phase rotation of the second spectrum relative to the first spectrum is at least partly removed. In this way, a better tolerance to fiber nonlinearities is achieved and thus a longer reach and a higher capacity of a fiber link are obtainable.

8. 发明公开

EP2792089A1 OPTICAL HOMODYNE COHERENT RECEIVER AND METHOD FOR RECEIVING A MULTICHANNEL OPTICAL SIGNAL 失效
标题翻译：光零差相干接收机和方法用于接收光多通道信号
公开(公告)号：EP2792089A1
公开(公告)日：2014-10-22
申请号：EP11802696.2
申请日：2011-12-15
申请人： Telefonaktiebolaget LM Ericsson (Publ)
发明人： OLSSON, Bengt-Erik
IPC分类号： H04B10/61
CPC分类号： H04B10/616 , H04B10/613 , H04B10/63
摘要： This disclosure relates to an optical receiver arrangement (500) and a method for receiving a multichannel optical signal OB in an optical receiver arrangement (500), wherein the optical signal OB comprises a number of optical channels A, B, C, D equally distributed around an optical carrier frequency f
LO and wherein the optical receiver arrangement (500) comprises an optical homodyne receiver (200) and a multichannel recovery unit (300). The method comprises the actions of: receiving and detecting the multichannel optical signal OB so as to provide at least one electrical quadrature signal IQV comprising at least one folded channel A+D, wherein each folded channel A+D correspond to a set of two optical channels A, D collapsed onto each other; and up converting said at least one electrical quadrature signal IQV so as to provide at least one up converted quadrature signal IQV-UP comprising at least one pair of two separated unfolded channels A, D, wherein each pair correspond to the two optical channels A, D of an unique folded channel A+D; and demodulating said at least one up converted quadrature signal IQV-UP so as to provide one baseband quadrature signal IQA, IQD for each un folded channel A, D such that each baseband quadrature signal IQA, IQD corresponds to one unique optical channel A, D.

9. 发明公开

EP2452454A1 IMPROVED POWER ALLOCATION IN OPTICAL FIBER TRANSMISSION 失效
标题翻译：改进的性能分配从事光纤传输
公开(公告)号：EP2452454A1
公开(公告)日：2012-05-16
申请号：EP09780262.3
申请日：2009-07-07
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： OLSSON, Bengt-Erik
IPC分类号： H04J14/02
CPC分类号： H04J14/0298 , H04B10/516 , H04J14/0221
摘要： Disclosed herein is a scheme for transmitting a composed optical signal 12b through an optical fiber arrangement 40. The transmitted composed optical signal 12b comprises one or several sidebands Sb1, Sbn each substantially centered around a subcarrier f1, fn, and an attenuated carrier signal
ƒ
t
b attenuated such that the composed optical signal 12b is not linearly detectable by means of optical direct detection. The transmitted composed optical signal 12b is received and the power of the attenuated carrier signal
ƒ
t
b is amplified so as to create an amplified composed optical signal 12a'; that is linearly detectable by means of optical direct detection.

10. 发明授权

EP3314699B1 INTERFERENCE MITIGATION IN MULTIPLE INPUT MULTIPLE OUTPUT SYSTEMS 有权
公开(公告)号：EP3314699B1
公开(公告)日：2020-09-16
申请号：EP15736215.3
申请日：2015-06-25
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： OLSSON, Bengt-Erik , BAO, Lei
IPC分类号： H04B7/0413 , H04B7/06 , H01Q25/00

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