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:
Sep. 11, 2007
Filed:
Jul. 08, 2005
Fredrik Gunnarsson, Linköping, SE;
Thomas Ostman, Sp{dot over (a)}nga, SE;
BO Hagerman, Tyresö, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
A control node () of a radio access network () comprises a soft handover unit () and a power control unit (). The soft handover unit () controls a soft handover procedure wherein a user equipment unit () has diversity in radio transmissions with plural radio base stations () comprising an active set of base stations. The power control unit (), during the soft handover procedure, facilitates an adjustment of an uplink power level used by the user equipment unit () for uplink radio transmissions to the plural base stations by an adjustment amount. The adjustment amount is determined to promote uplink synchronization for all radio base stations of the active set. In one example embodiment, the power control unit () comprises a soft handover power boost function () which, during the soft handover procedure, increases the uplink power level used by the user equipment unit () for uplink radio transmissions by the adjustment amount. The adjustment amount is preferably a function of a difference between power levels of downlink reference signals of the active set.