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公开(公告)号：US11496217B2
公开(公告)日：2022-11-08
申请号：US17134023
申请日：2020-12-24
申请人： Infinera Corporation
IPC分类号： H04B10/118 , H04B10/61 , H04B10/50 , H04B10/29 , H04B10/40 , H04B10/516
摘要： An example apparatus includes a first communications module having a first transceiver. The first communications module is operable to transmit, using the first transceiver, a plurality of first groups of optical subcarriers to a plurality of second communications modules via free-space optical communication. The first groups of optical subcarriers carry first data, and each of the first groups of optical subcarriers is associated, respectively, with a different one of the second communications modules. The first communications module is also operable to receive, using the first transceiver, plurality of second groups of optical subcarriers from the second communications modules via free-space optical communication. The second groups of optical subcarriers carry second data and each of the second groups of optical subcarriers is associated, respectively, with a different one of the second communications modules.
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公开(公告)号：US20210367668A1
公开(公告)日：2021-11-25
申请号：US17134023
申请日：2020-12-24
申请人： Infinera Corporation
IPC分类号： H04B10/118 , H04B10/29 , H04B10/40
摘要： An example apparatus includes a first communications module having a first transceiver. The first communications module is operable to transmit, using the first transceiver, a plurality of first groups of optical subcarriers to a plurality of second communications modules via free-space optical communication. The first groups of optical subcarriers carry first data, and each of the first groups of optical subcarriers is associated, respectively, with a different one of the second communications modules. The first communications module is also operable to receive, using the first transceiver, plurality of second groups of optical subcarriers from the second communications modules via free-space optical communication. The second groups of optical subcarriers carry second data and each of the second groups of optical subcarriers is associated, respectively, with a different one of the second communications modules.
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公开(公告)号：US11996884B1
公开(公告)日：2024-05-28
申请号：US17527102
申请日：2021-11-15
申请人： Infinera Corporation
IPC分类号： H04B10/079 , H04B10/40 , H04L49/90
CPC分类号： H04B10/0795 , H04B10/40 , H04L49/90
摘要： Systems, methods, devices, and other implementations for minimizing latency asymmetries and variations in a bi-directional link between two nodes in a communication system are described. To determine a variable latency for communication between two network nodes, a transmitting node can insert a line marker and a client marker into the data to be transmitted to the receiving node. The line marker and client marker can be inserted into the data at different portions or by different components of a transmitter. The receiving node can receive the transmitted data and extract the line marker and client marker. A delay associated with the line and client markers (Tc-TL) in the transmission device and a delay between the reception of the line and clien markers (Rc-RL) at the receiving node can be used to determine the variable latency.
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公开(公告)号：US11743621B2
公开(公告)日：2023-08-29
申请号：US17069818
申请日：2020-10-13
申请人： Infinera Corporation
发明人： Tulasi Veguru , David F. Welch , Mats Plantare , Prasad Paranjape , Ting-Kuang Chiang , Gus Elmer
IPC分类号： H04Q11/00
CPC分类号： H04Q11/0067 , H04Q11/0005 , H04Q2011/0016 , H04Q2011/0081 , H04Q2011/0086 , H04Q2011/0088
摘要： Optical subcarriers may be employed to transmit data in a point-to-multi-point network whereby a hub node including a network switch receives such data from a client and transmits information indicative of such data to multiple leaf or network nodes, where data intended for such leaf node is output. Often the rate at which data is supplied to the hub node is different than the rate at which information indicative of the data is transmitted. Moreover, the client data may have a format that is different than that associated with the transmitted information indicative of the client data. Consistent with the present disclosure, client data is inverse multiplexed to lower data rate streams and then multiplexed to a plurality of inputs, each of which corresponding to a respective optical subcarrier. Information indicative of the data may be allocated to multiple subcarriers, if the a single carrier lacks sufficient capacity or bandwidth to meet the bandwidth requirements of the leaf node. Buffer circuits may also be employed to “shape” or delay the outputs or flows of the multiplexer so that data is fed, for example, to a transmit portion of chip 200b of the network switch at a uniform rate rather than in non-uniform data bursts, which, under certain circumstances, could exceed the capacity of such transmit portion. In a further example, leaf nodes include circuitry for monitoring the amount of received data, and, if such received exceeds a certain threshold, a request is sent from the leaf node to the hub to transmit data at a rate equal to or substantially equal to the received data rate. As a result, symmetric data flows may be achieved whereby the leaf nodes transmit and receive data at the same or substantially the same rate.
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公开(公告)号：US20210152902A1
公开(公告)日：2021-05-20
申请号：US17069818
申请日：2020-10-13
申请人： Infinera Corporation
发明人： Tulasi Veguru , Welch F. David , Mats Plantare , Prasad Paranjape , Ting-Kuang Chiang , Gus Elmer
IPC分类号： H04Q11/00
摘要： Optical subcarriers may be employed to transmit data in a point-to-multi-point network whereby a hub node including a network switch receives such data from a client and transmits information indicative of such data to multiple leaf or network nodes, where data intended for such leaf node is output. Often the rate at which data is supplied to the hub node is different than the rate at which information indicative of the data is transmitted. Moreover, the client data may have a format that is different than that associated with the transmitted information indicative of the client data. Consistent with the present disclosure, client data is inverse multiplexed to lower data rate streams and then multiplexed to a plurality of inputs, each of which corresponding to a respective optical subcarrier. Information indicative of the data may be allocated to multiple subcarriers, if the a single carrier lacks sufficient capacity or bandwidth to meet the bandwidth requirements of the leaf node. Buffer circuits may also be employed to “shape” or delay the outputs or flows of the multiplexer so that data is fed, for example, to a transmit portion of chip 200b of the network switch at a uniform rate rather than in non-uniform data bursts, which, under certain circumstances, could exceed the capacity of such transmit portion. In a further example, leaf nodes include circuitry for monitoring the amount of received data, and, if such received exceeds a certain threshold, a request is sent from the leaf node to the hub to transmit data at a rate equal to or substantially equal to the received data rate. As a result, symmetric data flows may be achieved whereby the leaf nodes transmit and receive data at the same or substantially the same rate.
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公开(公告)号：US11817901B2
公开(公告)日：2023-11-14
申请号：US17134063
申请日：2020-12-24
申请人： Infinera Corporation
IPC分类号： H04B10/00 , H04B10/118 , H04B10/61 , H04B10/50 , H04B10/29 , H04B10/40 , H04B10/516
CPC分类号： H04B10/118 , H04B10/29 , H04B10/40 , H04B10/50 , H04B10/503 , H04B10/516 , H04B10/61
摘要： An example apparatus includes an optical transmitter, an optical splitter, lenses, and mirrors. The optical splitter has an input and several outputs. The input of the optical splitter is optically coupled to the transmitter, such that each of the outputs of the optical splitter is operable to supply a corresponding one of a plurality of modulated optical signals, each of which includes a plurality of optical subcarriers. Each of the lenses is optically coupled to a respective one of the outputs of the optical splitter. Each of the lenses is operable to receive a corresponding one of the modulated optical signals. Each of the mirrors is optically coupled to a corresponding one of the lenses, such that each of the mirrors is operable to direct a respective one of the modulated optical signals for transmission through free space.
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公开(公告)号：US20220014269A1
公开(公告)日：2022-01-13
申请号：US17134063
申请日：2020-12-24
申请人： Infinera Corporation
IPC分类号： H04B10/118 , H04B10/50 , H04B10/516
摘要： An example apparatus includes an optical transmitter, an optical splitter, lenses, and mirrors. The optical splitter has an input and several outputs. The input of the optical splitter is optically coupled to the transmitter, such that each of the outputs of the optical splitter is operable to supply a corresponding one of a plurality of modulated optical signals, each of which includes a plurality of optical subcarriers. Each of the lenses is optically coupled to a respective one of the outputs of the optical splitter. Each of the lenses is operable to receive a corresponding one of the modulated optical signals. Each of the mirrors is optically coupled to a corresponding one of the lenses, such that each of the mirrors is operable to direct a respective one of the modulated optical signals for transmission through free space.
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公开(公告)号：US20210367669A1
公开(公告)日：2021-11-25
申请号：US17134067
申请日：2020-12-24
申请人： Infinera Corporation
IPC分类号： H04B10/118 , H04B10/29 , H04B10/50 , H04B10/61
摘要： An example method is performed by a terrestrial control system communicatively coupled to a constellation of satellites. According to the method, instructions are transmitted to a first satellite of the constellation to transmit a plurality of first groups of optical subcarriers to a plurality of second satellites of the constellation via free-space optical communication. The first groups of optical subcarriers carry first data and each of the first groups of optical subcarriers is associated, respectively, with a different communications module of the second satellites. Further, instructions are transmitted to the second satellites to transmit a plurality of second optical subcarriers to the first satellite via free-space optical communication. The second groups of optical subcarriers carry second data and each of the second groups of optical subcarriers is associated, respectively, with a different communications module of the second satellites.
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