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:
Feb. 03, 2009
Filed:
Oct. 20, 2004
András Borsos, Helsinki, FI;
Dominique Müller, Helsinki, FI;
András Borsos, Helsinki, FI;
Dominique Müller, Helsinki, FI;
Nokia Corporation, Espoo, FI;
Abstract
A time slicing digital broadcast system includes a dynamic handover process switching a handheld terminal receiving services in a first signal to a second signal providing the same services, while roaming among cells in the digital broadcast system. The terminal takes into account the varying intervals between bursts in the current cell and the target cell. The terminal identifies possible handover signals from a MPE/FEC frame in a data stream. A table in the MPE/FEC frame transmitted once on each transport stream contains the mapping of the real-time handover signaling to the handovers that are possible from signals that are transporting the actual transport stream. The table contains a calculated retune interval specifying the guaranteed interval for the MPE/FEC frame. In another embodiment, the MPE/FEC frame contains MAC addressing bits in the MPE section for real-time parameters in time slicing. The bits may be converted into signaling scenarios for guaranteed handover time.