公开(公告)号：US12167382B2

公开(公告)日：2024-12-10

申请号：US17707238

申请日：2022-03-29

Applicant: Aviat U.S., Inc.

Inventor： Chaoming Zeng

IPC: H04W72/04 ,  H04L1/00 ,  H04L47/72 ,  H04W24/08 ,  H04W28/02 ,  H04W72/0453 ,  H04L5/00 ,  H04L27/34 ,  H04L27/36

Abstract: An example system comprises a router configured to receive a bandwidth update associated with a change in bandwidth over a wireless channel, determine if the change in bandwidth identified in the bandwidth update results in bandwidth being over-reserved at at least one priority level, previously reserved bandwidth of the wireless channel being associated with a plurality of different priority levels, the previously reserved bandwidth being previously reserved based on a plurality of path requests from a head end router, each path request including at least one priority level and a bandwidth reservation request, if the change in bandwidth results in bandwidth being over-reserved, then preempt a lowest priority path request, based in the preemption of the lowest priority path request, update reserved bandwidth of the wireless channel of at least one priority level, and provide a message to the head end router regarding the change of bandwidth.

公开(公告)号：US20240214260A1

公开(公告)日：2024-06-27

申请号：US18415364

申请日：2024-01-17

Applicant: Aviat U.S., Inc.

Inventor： Alain Hourtane ,  Sergio Licardie ,  Chaoming Zeng

IPC: H04L41/0604 ,  H03M13/09 ,  H04L1/00 ,  H04L12/42 ,  H04L41/0654 ,  H04L41/0663 ,  H04L45/00 ,  H04L45/28 ,  H04W24/04

CPC classification number: H04L41/0627 ,  H03M13/09 ,  H04L1/004 ,  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.

公开(公告)号：US11581963B2

公开(公告)日：2023-02-14

申请号：US17724370

申请日：2022-04-19

Applicant: Aviat U.S., Inc.

Inventor： Gary Croke ,  Sergio Licardie ,  Robert Vilhar ,  Sreco Plevel ,  Marius Koegelenberg

IPC: H04B17/345 ,  H04B1/10

Abstract: An interference detection system comprises memory storing computer instructions to cause a processor to perform gathering a temporal snapshot of radio parameter values associated with a first site of a point-to-point radio system, the radio parameter values including at least a receive signal level (RSL) value and at least one other radio parameter value correlated with signal degradation; determining whether the RSL value is greater than an RSL threshold; determining whether the other radio parameter value indicates a threshold level of signal degradation; when the RSL is greater than the RSL threshold and the other parameter indicates a threshold level of signal degradation during the temporal snapshot, determining that external interference is present during the temporal snapshot; when the RSL is not greater than the RSL threshold, determining that the external interference is not present; and performing a responsive action to a determination of the external interference being likely present.

公开(公告)号：US20220174001A1

公开(公告)日：2022-06-02

申请号：US17516204

申请日：2021-11-01

Applicant: Aviat U.S., Inc.

Inventor： Chaoming Zeng ,  Sergio Licardie

IPC: H04L45/24 ,  H04W24/04 ,  H04W76/15 ,  H04L69/14 ,  H04B7/10 ,  H04L1/00 ,  H04L12/46 ,  H04L45/00 ,  H04L47/41

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.

公开(公告)号：US11005510B2

公开(公告)日：2021-05-11

申请号：US16705082

申请日：2019-12-05

Applicant: Aviat U.S., Inc.

Inventor： Sreco Plevel

IPC: H04B1/12 ,  H04L27/36 ,  H04L25/03 ,  H04L25/02 ,  H04J4/00 ,  H04L27/26

Abstract: An example system comprises a first antenna and a modem. The first antenna is configured to receive a signal from a transmitting radio frequency unit. The signal includes data and a known sequence. The modem is configured to retrieve the known sequence from the signal, transform the known sequence and the data into a frequency domain, calculate averages of groups of neighboring frequency points in the frequency domain to reduce the effect of nonlinear noise in the signal, the neighboring frequency points corresponding to the preamble in the frequency domain, compare the calculated averages to an expected frequency response in the frequency domain, determine a correction filter to apply to the data based on the comparison, apply the correction filter on the data in the frequency domain to create corrected data, transform the corrected data from the frequency domain to the time domain, and provide the data.

公开(公告)号：US20200099470A1

公开(公告)日：2020-03-26

申请号：US16698126

申请日：2019-11-27

Applicant: Aviat U.S., Inc.

Inventor： Sergio Licardie ,  Rishipal Arya ,  Robert Brown

IPC: H04L1/00 ,  H04B7/08 ,  H03M13/37 ,  H03M13/47 ,  H03M13/45 ,  H03M13/00

Abstract: A frame error correction circuit may identify and correct errors in data frames provided to a receiver as part of a diversity communications scheme. The frame error correction circuit may further align the data frames so that the data frames can be compared. The frame error correction circuit may perform a bit-wise comparison of the data frames and identify inconsistent bit positions where bits in the data frames differ from one another. Once inconsistent bit positions have been identified, the frame error correction circuit may access a permutation table of permutations of bits at the inconsistent bit positions. In some implementations, the frame error correction circuit uses the permutation table to reassemble permutations of the data frames. In various implementations, the frame error correction circuit performs a CRC of each permutation of the data frames, and provides a valid permutation to a network.

公开(公告)号：US10536369B2

公开(公告)日：2020-01-14

申请号：US16141879

申请日：2018-09-25

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.

公开(公告)号：US10411986B2

公开(公告)日：2019-09-10

申请号：US16046948

申请日：2018-07-26

Applicant: Aviat U.S., Inc.

Inventor： Janez Mihelic ,  Tadej Markovic

IPC: H04J3/06 ,  H04L12/26 ,  H04L12/855 ,  H04L27/26

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.

公开(公告)号：US20190173504A1

公开(公告)日：2019-06-06

申请号：US16216818

申请日：2018-12-11

Applicant: Aviat U.S., Inc.

Inventor： Sreco Plevel

IPC: H04B1/12 ,  H04L25/02 ,  H04L25/03 ,  H04L27/36 ,  H04J4/00

Abstract: An example system comprises a first antenna and a modem. The first antenna is configured to receive a signal from a transmitting radio frequency unit. The signal includes data and a known sequence. The modem is configured to retrieve the known sequence from the signal, transform the known sequence and the data into a frequency domain, calculate averages of groups of neighboring frequency points in the frequency domain to reduce the effect of nonlinear noise in the signal, the neighboring frequency points corresponding to the preamble in the frequency domain, compare the calculated averages to an expected frequency response in the frequency domain, determine a correction filter to apply to the data based on the comparison, apply the correction filter on the data in the frequency domain to create corrected data, transform the corrected data from the frequency domain to the time domain, and provide the data.

公开(公告)号：US20190044791A1

公开(公告)日：2019-02-07

申请号：US16150192

申请日：2018-10-02

Applicant: Aviat U.S., Inc.

Inventor： Alain Hourtane ,  Sergio Licardie ,  Chaoming Zeng

IPC: H04L12/24 ,  H04W24/04 ,  H04L12/703 ,  H04L12/42 ,  H04L12/701

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.