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:
Oct. 13, 2009
Filed:
Aug. 08, 2005
Tomoaki Hokao, Tokyo, JP;
Tomoaki Hokao, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
The present invention provides a mobile communication system capable of effectively utilizing the limited reception resources available to the UEs and thereby performing steady communication for use in the handover control of UEs. A UE, during communication, determines a handover destination cell according to the result of measurement of the CPICH reception level of each of cells: (1) it measures the reception quality of the downlink DPCH of each of the cells and utilizes the result for the selection of the handover destination cell; (2) switches the handover destination cell and searches for a cell needed for obtaining required communication quality; (3) observes the displacement of the CPICH path loss of each of the cells; and (4) observes whether or not the downlink DPCH transmission power is controlled on the basis of the power request from the UE for each of the handover destination cells.