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公开(公告)号：US11165687B2
公开(公告)日：2021-11-02
申请号：US16741555
申请日：2020-01-13
Applicant: Aviat U.S., Inc.
Inventor： Chaoming Zeng , Sergio Licardie
IPC: H04L12/709 , H04W24/04 , H04W76/15 , H04L29/06 , H04B7/10 , H04L1/00 , H04L12/46 , H04L12/721 , H04L12/891 , H04L29/08
Abstract: A first layer one link aggregation master comprises a first port coupled to receive customer traffic; a first channel; a second channel; an aggregation engine coupled to the first and second channels; a first switch circuit coupled to the first port and to the first channel, and configured to communicate the customer traffic from the first port over the first channel to the aggregation engine, the aggregation engine including a splitter circuit configured to use layer one information to segment at least a portion of the customer traffic into a first virtual container and a second virtual container, the aggregation engine further including an encapsulation circuit configured to encapsulate the second virtual container using Ethernet standards for transport over the second channel; a radio access card configured to generate an air frame based on the first virtual container for wireless transmission over a first wireless link of a link aggregation group to the receiver; and a second switch circuit coupled to the second channel, and configured to communicate the Ethernet-encapsulated second virtual container over an Ethernet cable to a slave for wireless transmission over a second wireless link of the link aggregation group to the receiver.
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公开(公告)号：US20210083958A1
公开(公告)日：2021-03-18
申请号：US17108330
申请日：2020-12-01
Applicant: Aviat U.S., Inc.
Inventor： Janez Mihelic , Tadej Markovic
IPC: H04L12/26 , H04L12/855 , H04L27/26 , H04J3/06 , H04W56/00
Abstract: An example method comprises receiving, by a first PHY of a first transceiver, a timing packet, timestamping, by the first transceiver, the timing packet and providing the timing packet to a first intermediate node, determining a first offset between the first intermediate node and the first transceiver, updating a first field within the timing packet with the first offset between the first intermediate node and the first transceiver, the offset being in the direction of the second transceiver, receiving the timing packet by a second transceiver, the timing packet including the first field, information within the first field being at least based on the first offset, determining a second offset between the second transceiver and an intermediate node that provided the timing packet to the second transceiver and correcting a time of the second transceiver based on the information within the first field and the second offset.
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公开(公告)号：US10763952B2
公开(公告)日：2020-09-01
申请号：US16691279
申请日：2019-11-21
Applicant: Aviat U.S., Inc.
Inventor： Paul A. Kennard
IPC: H04B7/155
Abstract: Various embodiments provide for systems, methods, or apparatuses that provide a fronthaul architecture that facilitates high fidelity and low latency communication between a radio processing unit, such as a baseband unit (BBU), which may be located a central office (CO), and a remote transceiver, which may comprise a remote radio head (RRH) or a remote radio unit (RRU), which may be located at remote cell site.
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公开(公告)号：US10608807B2
公开(公告)日：2020-03-31
申请号：US15913847
申请日：2018-03-06
Applicant: Aviat U.S., Inc.
Inventor： Janez Mihelic
Abstract: An exemplary method of synchronizing a master clock and a slave clock comprises transmitting a plurality of packets between a master device and a slave device, calculating a first skew between a first pair of the plurality of packets at the slave device and a second skew between the first pair at the master device, calculating a ratio between the first skew and the second skew, providing a slave clock frequency correction to the slave device, calculating a first packet trip delay using a time that the master device initiates sending a packet to the slave device, a time the master device receives a response from the slave device, a corrected time the slave device receives the packet, and a corrected time the slave device initiates sending the response, calculating a first offset based on the first packet trip delay, and providing the first offset to the slave device.
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公开(公告)号：US10594470B2
公开(公告)日：2020-03-17
申请号：US15913833
申请日：2018-03-06
Applicant: Aviat U.S., Inc.
Inventor： Janez Mihelic
Abstract: An exemplary method of synchronizing a master clock and a slave clock comprises transmitting a plurality of packets between a master device and a slave device, calculating a first skew between a first pair of the plurality of packets at the slave device and a second skew between the first pair at the master device, calculating a ratio between the first skew and the second skew, providing a slave clock frequency correction to the slave device, calculating a first packet trip delay using a time that the master device initiates sending a packet to the slave device, a time the master device receives a response from the slave device, a corrected time the slave device receives the packet, and a corrected time the slave device initiates sending the response, calculating a first offset based on the first packet trip delay, and providing the first offset to the slave device.
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Patent Agency Ranking
公开(公告)号：US20200045844A1
公开(公告)日：2020-02-06
申请号：US16653460
申请日：2019-10-15
Applicant: Aviat U.S., Inc.
Inventor： Farley Dlugosz
Abstract: A system comprises a wheel assembly including a wheel shaft and first and second wheels rotationally coupled to the wheel shaft; a first bracket coupled to a device rack and including a first open slot, the first open slot including a receiving portion configured to receive the wheel shaft at a first position, a delivery portion configured to deliver the wheel shaft upon tilting the rack forwards, and a locking portion configured to secure the wheel shaft upon tilting the rack backwards; and a second bracket configured to be coupled to the rack on a second side and including a second open slot, the second open slot including a receiving portion configured to receive the wheel shaft at a second position, a delivery portion configured to deliver the wheel shaft upon tilting the rack forwards, and a locking portion configured to secure the wheel shaft upon tilting the rack backwards.
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公开(公告)号：US20190036631A1
公开(公告)日：2019-01-31
申请号：US16046877
申请日：2018-07-26
Applicant: Aviat U.S., Inc.
Inventor： Tadej Markovic , Janez Mihelic
Abstract: An example system comprising a first transceiver configured to receive a request airframe from a second transceiver over a wireless link, the request airframe including a first timestamp indicating a first time T1 timestamp a second time indication indicating a second time T2 that the request airframe was received, generate a respond airframe and including a third time indication indicating a third time T3 that the respond airframe is transmitted to the second transceiver, transmit the respond airframe to the second transceiver, provide a timestamp information request to second transceiver, receive a timestamp information response, the timestamp information response including a fourth time indication indicating a fourth time T4, calculate a counter offset using the first time, second time, third time and fourth time as follows: counter offset = ( TS 1 + TS 4 - TS 3 - TS 2 ) 2 , calculate a phase offset based on the counter offset, and correct a phase of the first transceiver.
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公开(公告)号：US20180198599A1
公开(公告)日：2018-07-12
申请号：US15913847
申请日：2018-03-06
Applicant: Aviat U.S., Inc.
Inventor： Janez Mihelic
CPC classification number: H04L7/0033 , G06F1/10 , G06F1/12 , H04J3/0667 , H04L43/0852
Abstract: An exemplary method of synchronizing a master clock and a slave clock comprises transmitting a plurality of packets between a master device and a slave device, calculating a first skew between a first pair of the plurality of packets at the slave device and a second skew between the first pair at the master device, calculating a ratio between the first skew and the second skew, providing a slave clock frequency correction to the slave device, calculating a first packet trip delay using a time that the master device initiates sending a packet to the slave device, a time the master device receives a response from the slave device, a corrected time the slave device receives the packet, and a corrected time the slave device initiates sending the response, calculating a first offset based on the first packet trip delay, and providing the first offset to the slave device.
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公开(公告)号：US20180198598A1
公开(公告)日：2018-07-12
申请号：US15913833
申请日：2018-03-06
Applicant: Aviat U.S., Inc.
Inventor： Janez Mihelic
CPC classification number: H04L7/0033 , G06F1/10 , G06F1/12 , H04J3/0667 , H04L43/0852
Abstract: An exemplary method of synchronizing a master clock and a slave clock comprises transmitting a plurality of packets between a master device and a slave device, calculating a first skew between a first pair of the plurality of packets at the slave device and a second skew between the first pair at the master device, calculating a ratio between the first skew and the second skew, providing a slave clock frequency correction to the slave device, calculating a first packet trip delay using a time that the master device initiates sending a packet to the slave device, a time the master device receives a response from the slave device, a corrected time the slave device receives the packet, and a corrected time the slave device initiates sending the response, calculating a first offset based on the first packet trip delay, and providing the first offset to the slave device.
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公开(公告)号：US20180191554A1
公开(公告)日：2018-07-05
申请号：US15653485
申请日：2017-07-18
Applicant: Aviat U.S., Inc.
Inventor： Alain Hourtane , Sergio Licardie , Chaoming Zeng
IPC: H04L12/24 , H04W24/04 , H04L12/703 , H04L12/42 , H04L12/701
CPC classification number: H04L41/0627 , H04L12/42 , H04L41/0654 , H04L41/0663 , H04L45/00 , H04L45/28 , H04W24/04
Abstract: Rapid failure detection and recovery in wireless communication networks is needed in order to meet, among other things, carrier class Ethernet transport channel standards. Thus, resilient wireless packet communications is provided using a hardware-assisted rapid transport channel failure detection algorithm and a Gigabit Ethernet data access card with an engine configured accordingly. In networks with various topologies, this is provided in combination with their existing protocols, such as rapid spanning tree and link aggregation protocols, respectively.
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