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Data packets scheduling and encoding method for multicast automatic repeat request communication system, involves transmitting one of composite data packets to two receivers by sender.
Ericsson Research, Isafjordsgatan 14E, 164 93 Kista, Sweden.ORCID iD: 0000-0002-6026-322X
2006 (English)Patent (Other (popular science, discussion, etc.))
Abstract [en]

NOVELTY - The method involves obtaining feedback information from two receivers indicating received data packets, and forming a composite data packet as a weighted linear combination of regular data packets. Coding weights of a weight vector are adapted based on the feedback information for each of the composite data packet, such that the composite packet represents a linear combination of the regular packets for the receivers of the data packet previously received by the receivers during a multicast session. One of the composite data packets is transmitted to the receivers by a sender. USE - Method for scheduling and encoding data packets for transmission in a multicast session from a sender to two receivers in a multicast automatic repeat request (ARQ) communication system. Can also be used in a cellular system with a base station in communication with a set of mobile terminals. ADVANTAGE - The method effectively schedules and encodes the data packets for transmission in the multicast session from the sender to the receivers in the multicast automatic repeat request (ARQ) communication system. The method enables improved throughput efficiency for the reliable multicast, and provides deterministically decodable re-transmission scheme. The method provides highly throughput-efficient strategy for reliable multicasting. The method efficiently provides the multicast strategy that enables enhanced throughput, reduced delay and/or reduced energy consumption. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a sender for use in a multicast automatic repeat request (ARQ) communication system, comprising an arrangement for scheduling and encoding data packets for transmission in a multicast session from the sender to two receivers. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic flow diagram of a method for scheduling and encoding regular data packets into a composite data packet.

Place, publisher, year, edition, pages
2006.
Keyword [en]
Network coding, multicast, arq
National Category
Communication Systems Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-74264ISI: 2008G26702OAI: oai:DiVA.org:kth-74264DiVA: diva2:490145
Patent
RU 2419997-C2 (2011-05-27)
Note

QC 20120209. QC 20130806

Available from: 2012-02-03 Created: 2012-02-02 Last updated: 2014-11-10Bibliographically approved

Open Access in DiVA

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Other links

http://worldwide.espacenet.com/publicationDetails/originalDocument?FT=D&date=20110527&DB=worldwide.espacenet.com&locale=se_SE&CC=RU&NR=2419997C2&KC=C2&ND=4

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CiteExportLink to record
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