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1. 发明申请

US20170180071A1 Encapsulation of Digital Communications Traffic for Transmission on an Optical Link 审中-公开
公开(公告)号：US20170180071A1
公开(公告)日：2017-06-22
申请号：US15116087
申请日：2014-02-03
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Stefano STRACCA , Fabio CAVALIERE
IPC分类号： H04J3/16 , H04L1/00 , H04J3/06
CPC分类号： H04J3/1652 , H04J3/0688 , H04J3/0691 , H04L1/0009 , H04L1/0041 , H04L1/0047 , H04L1/0071 , H04L25/49 , H04L25/4908
摘要： A method (10) of encapsulating digital communications traffic for transmission on an optical link, the method comprising: a. receiving an input digital communications signal having an input line code (12); b. performing clock and data recovery on the input digital communications signal to obtain input line coded digital communications traffic and a recovered clock signal (14); c. decoding the input digital communications traffic to obtain information bits and non-information bits (16); d. removing the non-information bits (18); e. adding service channel bits for monitoring or maintenance (20); f. assembling the service channel bits and information bits into frames (22); and g. line coding the assembled frames using an output line code to form an encapsulated digital communications signal for transmission on an optical link (24), wherein steps c. to g. are performed using the timing of the recovered clock signal. A communications network receiver configured to implement the method is also provided.

2. 发明申请

US20170126319A1 Optical Transceiver 审中-公开
公开(公告)号：US20170126319A1
公开(公告)日：2017-05-04
申请号：US15317462
申请日：2014-06-10
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Fabio CAVALIERE , Antonio MALACARNE , Luca GIORGI , Luca POTI
IPC分类号： H04B10/2575 , H04B10/40
CPC分类号： H04B10/2575 , H04B10/2587 , H04B10/40 , H04J14/0216
摘要： A transceiver (4) comprising a receive part (70) configured to receive and detect a first signal carried on an optical carrier, wherein the signal is in a first part of a RF spectrum. The transceiver (4) further comprises a modulator (68) configured to modulate the same optical carrier with a second signal in a second part of the RF spectrum. The transceiver comprises a transmit part (60) configured to transmit the optical carrier modulated with the second signal. The first part of the RF spectrum is separate to the second part of the RF spectrum. The first signal and/or second signal are spectrally compressed signals.

3. 发明公开

US20240012203A1 OPTICAL FILTER AND METHODS 审中-公开
公开(公告)号：US20240012203A1
公开(公告)日：2024-01-11
申请号：US18036280
申请日：2020-11-19
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Alessandra BIGONGIARI , Alberto BIANCHI , Fabio CAVALIERE
IPC分类号： G02B6/293 , G02B6/12 , H04J14/02
CPC分类号： G02B6/29343 , G02B6/12007 , H04J14/021
摘要： An optical filter for an optical network is disclosed, the optical filter adaptively adds or removes a target wavelength in a predetermined filter range, the optical filter comprising: a first resonator having a first resonant wavelength outside a first sub-range of the predetermined filter range when a first resonance control variable of the first resonator is set at a first value, and a second resonant wavelength inside the first sub-range of the predetermined filter range when the first resonance control variable of the first resonator is set at a second value; and a second resonator having a third resonant wavelength outside a second sub-range of the predetermined filter range when a second resonance control variable of the second resonator is set at a third value, and a fourth resonant wavelength inside the second sub-range of the predetermined filter range when the second resonance control variable of the second resonator is set at a fourth value.

4. 发明申请

US20200007263A1 METHODS AND APPARATUS FOR DUAL POLARISATION OPTICAL COMMUNICATION 审中-公开
公开(公告)号：US20200007263A1
公开(公告)日：2020-01-02
申请号：US16465177
申请日：2016-12-12
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： Fabio CAVALIERE , Gianluca MELONI , Francesco FRESI , Vito SORIANELLO
IPC分类号： H04J14/06 , H04B10/532 , H04B10/67
摘要： A method for dual polarisation optical transmission is disclosed. The method comprises splitting a continuous wave light source into first and second sub-channels, optically modulating each sub-channel with a data signal, and superimposing a first pilot tone onto the first optically modulated sub-channel and a second pilot tone, different from the first pilot tone, onto the second optically modulated sub-channel. The method further comprises polarisation multiplexing the first and second sub-channels to form a polarisation multiplexed signal, in which the first and second sub-channels have orthogonal states of polarisation, and transmitting the polarisation multiplexed signal.

5. 发明申请

US20170324479A1 Wireless Communication Network Apparatus and Method of Transmitting Communications Traffic in Simple Format 审中-公开
公开(公告)号：US20170324479A1
公开(公告)日：2017-11-09
申请号：US15528393
申请日：2014-12-01
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Fabio CAVALIERE , Luca GIORGI , Filippo PONZINI , Elmar TROJER
IPC分类号： H04B10/2575 , H04W56/00
CPC分类号： H04B10/25752 , H04W56/001
摘要： A wireless communications network radio unit (10) comprising: an input (12) arranged to receive a radio over fibre, RoF input optical signal (14) carrying digital radio communications traffic for transmission from a plurality of antenna elements, synchronisation traffic and control and management traffic; a digital receiver (16) arranged to receive and terminate the RoF input optical signal to obtain the digital radio communications traffic; a framer (18) arranged to frame the digital radio communications traffic into at least one digital traffic stream consisting of the digital radio communications traffic for transmission from a plurality of the antenna elements and clock recovery information; and at least one optical transmitter (20) arranged to generate an RoF output optical signal (22) carrying the digital traffic stream.

6. 发明公开

US20240396659A1 A BROADCAST-AND-SELECT NODE 审中-公开
公开(公告)号：US20240396659A1
公开(公告)日：2024-11-28
申请号：US18697186
申请日：2021-07-29
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Luca GIORGI , Fabio CAVALIERE , Paola IOVANNA
IPC分类号： H04J14/02 , H04B10/032
CPC分类号： H04J14/0204 , H04B10/032 , H04J14/0228
摘要： A first Broadcast-and-Select (B&S) node includes a first downstream port coupled to a first downstream power splitter/combiner, a second downstream port coupled to a second downstream power splitter/combiner, and a third downstream port coupled to a third downstream power splitter/combiner. The first downstream power splitter/combiner is configured to split a total power of a first downstream optical signal received at the first downstream port to form a first version and a second version of the first downstream optical signal, the second power splitter/combiner is configured to: receive the first version of the first downstream optical signal, and transmit the first version of the first downstream optical signal to a first network node via the second downstream port, the third downstream power splitter/combiner is configured to: receive the second version of the first downstream optical signal.

7. 发明申请

US20220021472A1 CPRI Data Block Transmission Method and Apparatus 有权
公开(公告)号：US20220021472A1
公开(公告)日：2022-01-20
申请号：US17423933
申请日：2019-01-29
申请人： Telefonaktiebolaget LM Ericsson (PUBL)
发明人： Stefano STRACCA , Fabio CAVALIERE , Paolo DEBENEDETTI
IPC分类号： H04J3/16 , H04L1/00 , H04L25/49
摘要： Methods and apparatus are provided for transmitting data. In one aspect, a method of transmitting data comprises identifying a start of a Common Public Radio Interface (CPRI) frame, identifying CPRI data blocks of the CPRI frame, and transmitting the CPRI data blocks of the CPRI frame in slots of a FlexE calendar of a Flex Ethernet physical layer group (FlexE PHY group).

8. 发明申请

US20210044376A1 RECEIVING AN OPTICAL SIGNAL 有权
公开(公告)号：US20210044376A1
公开(公告)日：2021-02-11
申请号：US16762305
申请日：2017-11-14
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Fabio CAVALIERE , Paola IOVANNA
IPC分类号： H04J14/08 , H04B10/564 , H04B10/60
摘要： Methods and apparatus are provided for receiving an optical signal. In one aspect, a method includes receiving a first optical signal comprising time division multiplexed transmissions from a plurality of optical transmitters, and determining that a transmission is not received during a time period from a first optical transmitter of the optical transmitters that is scheduled to transmit during the time period. A second optical signal is inserted into the first optical signal during the time period, the second optical signal having at least a non-zero power portion.

9. 发明申请

US20180124482A1 SWITCHING DATA SIGNALS OF AT LEAST TWO TYPES FOR TRANSMISSION OVER A TRANSPORT NETWORK PROVIDING BOTH BACKHAUL AND FRONTHAUL (XHAUL)CONNECTIVITY 审中-公开
公开(公告)号：US20180124482A1
公开(公告)日：2018-05-03
申请号：US15568946
申请日：2015-11-24
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Giulio BOTTARI , Fabio CAVALIERE , Stefano RUFFINI , Stefano STRACCA
IPC分类号： H04Q11/00 , H04J3/16
CPC分类号： H04Q11/0066 , H04J3/1611 , H04J3/1664 , H04L7/0075 , H04Q2011/0086 , H04W40/00 , H04W88/085
摘要： A method for switching data signals transmitted over a transport network is disclosed. The method comprises receiving a plurality of input data signals of a first signal type wherein the plurality of data signals of the first signal type comprises data signals exchanged between a Radio Equipment and a Radio Equipment Controller and aggregating the plurality of input data signals into an aggregated first data signal. The method also comprises receiving a second data signal of a second signal type different to the first signal type, and multiplexing the first data signal with the second data signal to form a combined data signal. The method further comprises forwarding the combined data signal to the transport network. Multiplexing the first data signal with the second data signal comprises, for a frame of the combined data signal, allocating the first data signal to a portion of the frame reserved for the first data signal, and allocating the second data signal to a remaining portion of the frame.

10. 发明申请

US20170055050A1 OPTICAL SWITCH FOR RADIO ACCESS NETWORK 审中-公开
标题翻译：无线接入网络光开关
公开(公告)号：US20170055050A1
公开(公告)日：2017-02-23
申请号：US15307064
申请日：2014-04-28
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Fabio CAVALIERE , Kim LARAQUI , Roberto SABELLA
IPC分类号： H04Q11/00 , H04J14/02
CPC分类号： H04Q11/0005 , H04J14/0209 , H04J14/0282 , H04Q2011/0016 , H04Q2011/0032
摘要： A switch configured to connect a plurality of remote radio units with a plurality of main units in a radio access network. The switch comprises a first stage comprising one or more first units configured to receive a signal originating from a remote radio unit, and configured to output one or more spectral component having a wavelength. The switch further comprises a central stage configured to receive the one or more optical wavelength, and transfer the spectral component to an output port determined by the wavelength. The switch further comprises a second stage comprising one or more second units configured to receive the one or more spectral component from the central stage and output a signal towards a main unit. The first unit is configured to control the wavelength of the output spectral component such that the spectral component is transferred by the central stage to a selected one of said second units.
摘要翻译：一种被配置为将多个远程无线电单元与无线电接入网络中的多个主单元连接的开关。交换机包括第一级，其包括被配置为接收源自远程无线电单元的信号的一个或多个第一单元，并且被配置为输出具有波长的一个或多个频谱分量。该开关还包括中央级，被配置为接收一个或多个光波长，并将光谱分量传送到由该波长确定的输出端口。该开关进一步包括第二级，该第二级包括被配置为从中央级接收一个或多个频谱分量并向主单元输出信号的一个或多个第二单元。第一单元被配置为控制输出光谱分量的波长，使得光谱分量被中央级传送到所选择的一个所述第二单元。

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