Devices And Methods For Multipath Communications

What is this patent about?

’641 is related to the field of telecommunications , specifically addressing the challenge of providing broadband-like services to residential customers over existing POTS (Plain Old Telephone Service) lines. The background involves Competitive Local Exchange Carriers (CLECs) struggling to compete with Local Exchange Companies (LECs) due to the limitations of the traditional copper infrastructure and the high costs associated with deploying DSL or cable services.

The underlying idea behind ’641 is to create a device, a Residential Communications Gateway (RCG) , that leverages both the existing POTS line and wireless communication to increase bandwidth. The RCG uses the POTS line for basic connectivity and control, while employing a wireless interface to aggregate bandwidth from nearby RCGs, effectively creating a multilink connection for faster data transfer. This allows for enhanced services without requiring expensive infrastructure upgrades.

The claims of ’641 focus on a communications device with a connection to a network and a wireless interface. The device's processor is programmed to request assistance from remote devices in transferring data. This involves sending requests for participation in a multilink communication, transmitting control information, receiving data packets, and aggregating the data to increase bandwidth.

In practice, the RCG connects to the existing POTS line and uses its modem to establish a connection with the service provider's network. It then utilizes its wireless interface to communicate with other RCGs in the vicinity. When a large file transfer is initiated, the RCG requests assistance from neighboring RCGs, forming a multilink PPP connection . Each participating RCG contributes its available POTS bandwidth, effectively aggregating the bandwidth for faster data transfer.

This approach differentiates itself from prior solutions like DSL and cable modems by avoiding the need for expensive infrastructure upgrades at the central office. Unlike traditional VoIP services that rely on high-speed internet connections, the RCG enhances the existing POTS line, enabling CLECs to offer advanced services without significant capital investment. The dynamic bandwidth allocation and the ability to leverage multiple POTS lines through wireless communication are key differentiators.