The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 04, 1999
Filed:
Sep. 18, 1996
Rod Averbuch, Buffalo Grove, IL (US);
Israel A Cimet, Buffalo Grove, IL (US);
Valy Lev, Buffalo Grove, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A radio communication system (100) employs a method and apparatus for providing packet data communications to a communication unit (e.g., 120). The communication system includes a system controller (102), a packet data router (101), and multiple base sites (103-109). Each base site serves a respective service coverage area (133-139) and the service coverage areas a grouped into multiple location areas (150-151). The packet data router receives a data packet intended for the communication unit and processes a transport protocol layer of the packet. The packet data router then determines whether the communication unit is presently involved in a packet data communication session based at least on information contained in the transport protocol layer of the packet. When the communication unit is presently involved in such a communication session, the packet data router provides the first data packet directly to the communication unit via a base site (104) serving a service coverage area (134) containing the communication unit. However, when the communication unit is not presently involved in such a communication session, the packet data router instructs the system controller to page the communication unit from the base sites (103-106) serving a location area (150) containing the communication unit.