Broadband communications device

What is this patent about?

'801 is related to the field of telecommunications, specifically addressing the problem of limited bandwidth available 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 Carriers (LECs) due to infrastructure limitations and the high cost of deploying broadband technologies like DSL and cable. Existing VoIP solutions require expensive infrastructure upgrades or suffer from quality of service issues over the public internet.

The underlying idea behind '801 is to create a Residential Communications Gateway (RCG) that leverages existing POTS lines in conjunction with wireless communication to provide enhanced voice and data services. The RCG acts as a central hub, combining VoIP, data routing, and wireless networking capabilities. The key inventive insight is to use multiple POTS lines from neighboring RCGs via wireless links to create a multilink PPP connection, effectively aggregating bandwidth and providing broadband-like speeds without requiring infrastructure upgrades at the central office.

The claims of '801 focus on a communications device that enhances broadband communication services by using at least one connection to a communications network (e.g., a POTS line) and at least one wireless interface to connect to remote communications devices (e.g., other RCGs or cellular phones). The device's processor is configured to request assistance from these remote devices in transferring data by requesting and utilizing their unused bandwidth. The processor then selects devices with available bandwidth, sends control information to establish a multilink connection, and aggregates data from these devices with its own data transfers to increase overall bandwidth.

In practice, the RCG connects to a standard POTS line and provides multiple telephone lines, Ethernet/USB interfaces for computers, and a wireless interface (802.11b/g). When a user initiates a large data transfer, the RCG identifies nearby RCGs via its wireless interface and requests their participation in a multilink PPP connection. Participating RCGs then use their POTS lines to download data from the internet and relay it wirelessly to the initiating RCG, effectively creating a wider data pipe. The RCG dynamically monitors and adjusts the multilink connection based on the available bandwidth of each participating device.

This approach differentiates itself from prior solutions by avoiding the need for expensive infrastructure upgrades at the central office, as required by DSL and cable technologies. Unlike internet-based VoIP, it provides a more reliable quality of service by prioritizing voice traffic and dynamically allocating bandwidth. Furthermore, the RCG's ability to leverage the unused bandwidth of neighboring POTS lines through a wireless mesh network offers a cost-effective and scalable solution for delivering broadband-like speeds to residential customers, especially in areas where traditional broadband infrastructure is limited or unavailable.