公开(公告)号：US20170353698A1

公开(公告)日：2017-12-07

申请号：US15175950

申请日：2016-06-07

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： FAN BAI ,  DAN SHAN ,  JINSONG WANG ,  ROBERT ANTHONY BORDO ,  MARCO ROCCO

IPC: H04N7/18 ,  H04W24/08 ,  B60R1/00 ,  H04L5/00 ,  H04W76/02 ,  H04W28/02

CPC classification number: H04N7/181 ,  B60R1/00 ,  B60R2300/406 ,  H04L5/0012 ,  H04L5/006 ,  H04L5/0062 ,  H04W76/10

Abstract: A method and apparatus are disclosed for wirelessly communicating signals from trailer-mounted cameras to a towing vehicle, where the techniques overcome packet loss challenges caused by interferences, fading and poor signal strength. An advanced spectrum hopping algorithm monitors conditions on multiple channels in multiple frequency bands, detects congestion or collisions needing mitigation, and migrates transmissions as needed to other channels with greater free capacity. Network coding techniques are provided which transmit data packets via multiple paths, where the redundancy provides robustness against data packet losses. The multiple path network coding approach may include spectral diversity, where packets are transmitted on different bands, and spatial diversity, where packets are transmitted via different routes such as direct and repeater-based.