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. 03, 2013
Filed:
Mar. 12, 2008
Seppo M. Alanara, Oulu, FI;
Leping Huang, Tokyo, JP;
Seppo Vesterinen, Oulunsalo, FI;
Lars Dalsgaard, Oulu, FI;
Dan Forsberg, Helsinki, FI;
Seppo M. Alanara, Oulu, FI;
Leping Huang, Tokyo, JP;
Seppo Vesterinen, Oulunsalo, FI;
Lars Dalsgaard, Oulu, FI;
Dan Forsberg, Helsinki, FI;
Nokia Corporation, Espoo, FI;
Abstract
An auxiliary handover message is sent from a target eNB to a UE being handed over from a source eNB. The auxiliary handover message includes a context identifier that is established between the source eNB and the UE, which the source eNB provides to the target eNB during context data exchange when preparing for the handover. The UE uses the context identifier to verify that the auxiliary handover message is valid. Various approaches are detailed for minimizing signaling overhead and minimizing the time the UE must monitor the separate channel for the auxiliary handover message in the event the UE does not properly receive the original handover message from the source eNB. The context identifier may be a random number, a C-RNTI, an eNB-ID, or a token. The auxiliary handover command sent from the target eNB may be the context identifier with or without a copy of the handover command.