Microcell including remote radio channel units having a metallic microcell-macrocell wire link to a macrocell radio control complex
CA 2109788 C · Owner: Abbasi, Salman Yousef · Inventors: Gerszberg, Irwin; Oplinger, Thomas Mark; Martin, Jeffrey Stephen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A microcell unit, in a cellular telephone system using digital signal processing BSs, is digitally connected to a macrocell via a metallic link, such as a, twisted pair. The microcell includes a plurality of radio channel units (RCU) to, provide voice connectivity to mobile subscribers (MS) which are under control , of a, radio control complex (RCC) located in the macrocell. Several time slots of the, macrocell TDM bus, through which the RCC exerts control of the RCUs are, remoted to the microcell thereby enabling control of the RCUs at the microcell location by the RCC of the macrocell. This remoting action is achieved via a , remote, time division multiplex (TDM) circuit pack which …
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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 November 23, 1993 and granted January 18, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 23, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 23, 2015.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.