Broadcom Corporation

Fred Bunn

Thomas L Johnson

Joel I Danzig

Dolors Sala

Ajay Chandra V Gummalla

John O Limb

Tom Johnson

Thomas J Kolze

Bruce Joseph Currivan

Thomas J Quigley

Nambi Seshadri

Daniel Harvey Howard

Scott Cummings

Stephen Hughey

James Harrell

David Dworkin

Richard Protus

Taruna Tjahjadi

Harold Raymond Whitehead

Rennie Gardner

Paul E Burrell

Robert J Hebert

Jay Harrell

Stephen Hughley

Shane Tow

David B Mixson

Vincent Patrick Assini

A system, method and computer program product is provided for mitigating the effects of burst noise on packets transmitted in a communications system. A transmitting device applies an outer code, which may include, for example, a block code, an exclusive OR (XOR) code, or a repetition code, to one or more packets prior to adaptation of the packets for transmission over the physical (PHY) layer of the communications system, wherein the PHY layer adaptation may include FEC encoding of individual packets. The outer coded packets are then separately transmitted over a channel of the communications system. A receiving device receives the outer coded packets, performs PHY level demodulation and optional FEC decoding of the packets, and then applies outer code decoding to the outer coded packets in order to restore packets that were erased during transmission due to burst noise or other impairments on the channel.

System and method for mitigating burst noise in a communications system

A system and method is provided for supporting data transfer protocols that extend beyond standard protocols used in conventional data over cable systems. A subscriber station in accordance with the invention determines, during registration, whether a base station with which it communicates is capable of supporting an extended protocol, and if it is, transfers data to the base station in accordance with the extended protocol. Additionally, a base station in accordance with the invention is notified during registration whether or not a subscriber station supports an extended protocol and stores this information. When a request for transmission opportunity is subsequently received from the subscriber station, the base station accesses the stored information to determine if the cable modem supports the extended protocol. If the subscriber station supports the extended protocol, the base station processes data received from the subscriber station during the transmission opportunity in accordance with that protocol.

System and method for supporting extended protocols in a wireless communication system

A wireless communication system and method is provided for the transfer and processing of data in accordance with specialized data transfer protocols while utilizing conventional base station equipment. For example, the wireless communication system may include a subscriber station that provides for the modification of data packets in accordance with a proprietary protocol and the addressing of the modified data packets to a server. The server is adapted to reconstruct the data packets for transmission to other local subscriber stations or to a packet-switched network. In additional embodiments, the base station itself rather than a server operates to reconstruct the data packets.

Specialized data transfer in a wireless communication system

A cable modem system and method is provided for supporting data transfer protocols that extend beyond standard protocols used in conventional data over cable systems. A cable modem in accordance with the invention determines, during registration, whether a CMTS with which it communicates is capable of supporting an extended protocol, and if it is, transfers data to the CMTS in accordance with the extended protocol. Additionally, a CMTS in accordance with the invention is notified during registration whether or not a cable modem supports an extended protocol and stores this information. When a request for transmission opportunity is subsequently received from the cable modem, the CMTS accesses the stored information to determine if the cable modem supports the extended protocol. If the cable modem supports the extended protocol, the CMTS processes data received from the cable modem during the transmission opportunity in accordance with that protocol.

Methods for specialized data transfer in a wireless communication system

A wireless communication system is adapted for compatible inter-operation of a plurality of devices operating in accordance with a plurality of protocols. The wireless communication system includes a first group of one or more subscriber stations that interface with a base station in accordance with a first protocol and a second group of one or more subscriber stations that interface with the base station in accordance with a second protocol. The base station includes a protocol processor that identifies transmissions from the first and second groups of subscriber stations and routes transmissions from the first group of subscriber stations to a first processor operating in accordance with the first protocol and routes transmissions from the second group of subscriber stations to a second processor operating in accordance with the second protocol.

Apparatuses to utilize multiple protocols in a wireless communication system

Methods to utilize multiple protocols in a wireless communication system

A two way communication system is adapted for compatible inter-operation of a plurality of devices operating in accordance with a plurality of protocols. The communication system includes a first group of one or more remote devices that interface with a local host in accordance with a first protocol and a second group of one or more remote devices that interface with the local host in accordance with a second protocol. The local host includes a protocol processor that identifies transmissions from the first and second groups of remote devices and routes transmissions from the first group of remote devices to a first processor operating in accordance with the first protocol and also routes transmissions from the second group of remote devices to a second processor operating in accordance with the second protocol.

Apparatuses and methods to utilize multiple protocols in a communication system

A method and computer program product for providing RTP suppression across a DOCSIS network. An index number and a set of rules are sent to a receiver. The index number indicates the type of header suppression technique (i.e., RTP header suppression) to be performed, and the set of rules define how to recreate the RTP packets on the receiving end. At least one complete RTP packet is transmitted upstream for enabling a receiver to learn the RTP header. Subsequent RTP packets are transmitted upstream for reconstruction at the receiving end. The subsequent RTP packets are comprised of delta values representing fields that dynamically change from packet to packet in an RTP header.

Systems and computer program products for header suppression in a network that guarantees in order delivery of packets

System, method and computer program product for mitigating burst noise in a communications system

A method and computer program product for recognizing and optimizing the transmission of TCP/IP style traffic across a DOCSIS network. According to the method of the present invention, a full TCP protocol packet is initially transmitted across a DOCSIS network to be learned by the CMTS. Redundant fields in the TCP protocol packet are entirely suppressed when subsequent TCP protocol packets are transmitted across the DOCSIS network. Non-redundant fields in the TCP protocol packet are delta-encoded using a delta-encoded value when subsequent TCP protocol packets are transmitted. The delta-encoded values represent the change in value of the current TCP packet from the previous TCP packet for a non-redundant field. This enables the CMTS to provide an exact reconstruction of all subsequently transmitted compressed TCP protocol packets.

Dynamic delta encoding for cable modem header suppression

Methods for header suppression in a network that guarantees in order delivery of packets

A cable modem system and method is provided for the transfer and processing of data in accordance with specialized data transfer protocols while utilizing conventional cable modem termination system (CMTS) equipment. A cable modem system in accordance with the invention includes a cable modem that provides for the modification of data packets in accordance with a proprietary protocol and the addressing of the modified data packets to a headend server. The headend server is adapted to reconstruct the data packets for transmission to other local cable modems or to a packet-switched network. In additional embodiments, the CMTS itself rather than a headend server operates to reconstruct the data packets.

Cable modem system and method for specialized data transfer

Growing community of inventors

Roswell, GA, United States of America

Fred Bunn