Patent · US Active

In-band backhaul with layered division multiplexing

US10771208B2 · kind B2 · utility

1Cited by

2References

20Claims

0Family size

Assignee

Her Majesty the Queen in the Right of Canada, as represented by the Minister Industry, through the Communications Research Center Canada · CA

Inventors

Yiyan Wu · Ottawa, CA
Liang Zhang · Shanghai, CN
Wei Li · Beijing, CN
Khalil Salehian · Ottawa, CA
Sébastien Laflèche · Gatineau, CA

Key dates

Filing date	Jan 11, 2019
Grant date	Sep 8, 2020
Priority date	—
Expiry date	Jan 11, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2025/03815
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A primary transmitter of a multicast communication system transmits in-band backhaul to a relay transmitter using an LDM signal that also carries services to end-users. The relay transmitter processes received wireless signal to extract the in-band backhaul and re-transmits services obtained from the in-band backhaul in same or different frequency channel. The in-band backhaul may be transmitted in a high-capacity layer of the LDM signal carrying or in a separate timeslot. Transmitter-specific signature signals may be used for loopback and forward channel estimation at the relay transmitter. The in-band backhaul may also carry service data for devices in a different network.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.