Patent Yard Sign in
Expired Canadian patentCanada

Method and apparatus for minimizing redundant enhanced uplink allocation requests

CA 2564318 C · Owner: Terry, Stephen E. · Inventors: Terry, Stephen E.; Dick, Stephen G.; Zhang, Guodong

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

A method and apparatus for minimizing redundant enhanced uplink (EU) allocation requests and fault-isolating EU transmission failures that occur between a wireless transmit/receive unit (WTRU) and a Node-B. The WTRU transmits an enhanced dedicated channel (E-DCH) allocation request to the Node- B over an uplink (UL) EU channel. In one embodiment if E-DCH allocation , cannot be provided within a predetermined time period the Node-B sends an , acknowledgement message to the WTRU via a downlink (DL) EU signaling channel without sending E-DCH allocation information. The request is queued in the Node-B and the WTRU refrains from transmitting the same request until after the time period …

Read the whole patent

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 April 26, 2005 and granted December 19, 2017. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 26, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 26, 2005
GrantedDecember 19, 2017
Term endedApril 26, 2025
Patent numberCA 2564318 C
Classification (IPC)—

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedApril 26, 2005Patent grantedDec 19, 2017Term endedApril 26, 2025

Sources & verification

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