公开(公告)号：US10218765B1

公开(公告)日：2019-02-26

申请号：US15271320

申请日：2016-09-21

Applicant: Cisco Technology, Inc.

Inventor： Xiaoqing Zhu ,  Dan Tan ,  John George Apostolopoulos ,  Ahmed Atef Younes Badr ,  Ashish Khisti

IPC: H04L12/24 ,  H04L29/06 ,  H04L12/26 ,  H04L12/807

Abstract: In one embodiment, a device in a network assigns packets from a communication transmitted via the network to time windows over a period of time. The device determines a transmission performance metric for each of the packets in a particular time window and calculates, for each of the time windows, local disturbance scores, which are based on the transmission performance metrics for the packet in the time windows. A particular local disturbance score for a particular time window maps the transmission performance metrics for the packets in the time window to a perceived quality metric. The device determines a distortion score for the communication by aggregating the local disturbance scores for the time windows over the period of time.

公开(公告)号：US10003434B2

公开(公告)日：2018-06-19

申请号：US15094475

申请日：2016-04-08

Applicant: Cisco Technology, Inc.

Inventor： Michael A. Ramalho ,  Dan Tan ,  Geir A. Sandbakken ,  Paul G. Bright-Thomas ,  Greg H. Hakonsen

IPC: H03M13/00 ,  H04L1/00 ,  H04L12/911

CPC classification number: H04L1/0041 ,  H04L1/0057 ,  H04L1/0083 ,  H04L47/827

Abstract: Large source data packets having large packet sizes and small source data packets having small packet sizes that are smaller than the large packet sizes are received. The small source data packets and the large source data packets are sent to a receiving device without forward error correction (FEC). The small source data packets are aggregated into a container packet having a header configured to differentiate the container packet from the large source data packets and the small source data packets. The large source data packets and the container packet are encoded with forward error correction to produce FEC-encoded packets to enable forward error correction of the large source data packets and the container packet at the receiving device. The FEC-encoded packets are sent to the receiving device.

公开(公告)号：US20170294984A1

公开(公告)日：2017-10-12

申请号：US15094475

申请日：2016-04-08

Applicant: Cisco Technology, Inc.

Inventor： Michael A. Ramalho ,  Dan Tan ,  Geir A. Sandbakken ,  Paul G. Bright-Thomas ,  Greg H. Hakonsen

IPC: H04L1/00 ,  H04L12/911

CPC classification number: H04L1/0041 ,  H04L1/0057 ,  H04L1/0083 ,  H04L47/827

Abstract: Large source data packets having large packet sizes and small source data packets having small packet sizes that are smaller than the large packet sizes are received. The small source data packets and the large source data packets are sent to a receiving device without forward error correction (FEC). The small source data packets are aggregated into a container packet having a header configured to differentiate the container packet from the large source data packets and the small source data packets. The large source data packets and the container packet are encoded with forward error correction to produce FEC-encoded packets to enable forward error correction of the large source data packets and the container packet at the receiving device. The FEC-encoded packets are sent to the receiving device.