Cable modem downstream channel bonding re-sequencing mechanism

Details Cable modem downstream channel bonding re-sequencing mechanism Cable modem downstream channel bonding re-sequencing mechanism

2007-03-04

2009-08-11

West, Lewis G. (Department: 4124)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S428000

Reexamination Certificate

active

07573884

ABSTRACT:
A novel apparatus and method of packet re-sequencing applicable to systems wherein packets are assigned sequence numbers and transmitted over multiple channels with the requirement they be re-ordered at the receiving side. The mechanism is particularly suitable for use in cable systems adapted to implement the DOCSIS 3.0 specification which permits the bonding of a plurality of downstream channels into a single virtual high data rate pipe. In operation, received packets are stored in a memory whereby a pointer to the memory storage location is written into a context table diagram in accordance with the sequence number extracted from the packet. Packets are released in sequence order regardless of the order in which they were received.

REFERENCES:
patent: 6934760 (2005-08-01), Westbrook et al.
patent: 2003/0214949 (2003-11-01), Shaikli
patent: 2004/0143593 (2004-07-01), Le Maut et al.
patent: 2004/0181811 (2004-09-01), Rakib
patent: 2005/0265394 (2005-12-01), Chapman et al.
DOCSIS 3.0-MAC and Upper Layer Protocol Interface Specification, Document CM-SP-MULPIv3.0-Pre101-060804, Aug. 4, 2006, pp. 65-85.

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