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A method to provide DOCSIS based channel bonding utilizing multiple DOCSIS 1.1/2.0 based devices (e.g. CMs, STBs) interconnected via a local area network within a user's home

IP.com Disclosure Number: IPCOM000145678D
Original Publication Date: 2007-Jan-22
Included in the Prior Art Database: 2007-Jan-22
Document File: 4 page(s) / 362K

Publishing Venue

Motorola

Related People

Christopher J. Stone: AUTHOR

Abstract

This paper discusses a method to increase end user bandwidth utilizing DOCSIS 1.1 and or DOCSIS 2.0 infrastructure by providing a pseudo channel bonding implementation running on the bac

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A method to provide DOCSIS based channel bonding utilizing multiple DOCSIS 1.1/2.0 based devices (e.g. CMs, STBs) interconnected via a local area network within a  user's home

By Christopher J. Stone

 

ABSTRACT

This paper discusses a method to increase end user bandwidth utilizing DOCSIS 1.1 and or DOCSIS 2.0 infrastructure by providing a pseudo channel bonding implementation running on the backbone of a users residential LAN. 

PROBLEM

DOCSIS 1.1/2.0 has a limitation of 30-40Mbps bandwidth on a single downstream channel. DOCSIS 3.0 introduces a concept called channel bonding where a the DOCSIS 3.0 device has multiple tuners that connect to multiple unique DOCSIS downstream channel where the sum of the bandwidth of the multiple down streams is the overall bandwidth available for the device. This concept allows an MSO to push more content into a home due to the greater available bandwidth. The problem with the solution is that it requires new hardware. The idea proposed in this paper solves the problem of requiring new hardware to implement channel bonding by utilizing existing hardware interconnected via a local area network (LAN) with a home where each device connected to the LAN is connected to a unique DOCSIS downstream and "feeds" the bandwidth from said down streams to the LAN thus producing a LAN to Headend bandwidth comparable to DOCSIS 3.0 channel bonding.

SOLUTION

The solution presented in this paper is to "bond" multiple DOCSIS 1.1/2.0 devices within a home via the home's LAN where said DOCSIS 1.1/2.0 devices are interconnected via the LAN. In addition to the LAN interconnection the cable headend has infrastructure in place to support the ability to "split" bandwidth amongst multiple DOCSIS down stream channels such that the "split" bandwidth is made "whole" again once it hits the LAN within the home, where the DOCSIS 1.1/2.0 devices manage the process of making the "split" bandwidth "whole" again.

OPERATION

Figure 1 illustrates the scenario where there are 2 DOCSIS capable devices (2 STBs) [40 &50] residing on a LAN [60] where a PC [70] is also connected. In today’s world the PC [70] would be able to propagate IP traffic to/from one of the two DOCSIS devices [40 & 50], thus the bandwidth available to the PC [70] is limited by the bandwidth supported by a single DOCSIS device [40 or 50]. The idea proposed within this paper defines a feature that would be added to the system where bandwidth could be split between 2 DOCSIS downstream channels [80 & 90] on the HFC plant [30] where each DOCSIS STB [40 & 50] within a home would be tuned to said channel [80...