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Canadian application, no grantCanada

Methods and apparatus for route optimization in a communications system

CA 2287613 A1 · Owner: Lucent Technologies Inc. · Inventors: Budka, Kenneth Carl; Chuah, Mooi Choo; Yue, On-Ching

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A route optimization technique in a GPRS network includes establishing a gateway GPRS support node in a visiting public land mobile network in which a roaming, mobile station is currently located. Specifically a tunnel is formed between , the gateway GPRS support node and a serving GPRS support node to which the mobile station is in, direct communication over a radio link. In this manner external corresponding , hosts, may route packets to the gateway GPRS support node rather than the GPRS , support, node in the mobile station's home public mobile network as is done in , conventional, GPRS networks. Advantageously a shorter path is established for transfer of packets, between a mobile …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed October 26, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 26, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 26, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 26, 1999
GrantedNo grant recorded
Term endedOctober 26, 2019
Patent numberCA 2287613 A1
Classification (IPC)H04Q3/66 +2 more

Timeline

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2000200220042006200820102012201420162018Application filedOct 26, 1999Term endedOct 26, 2019

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.