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. 10, 2015
Filed:
Dec. 02, 2009
Vinh Van Phan, Oulu, FI;
Ling Yu, Oulu, FI;
Kari Veikko Horneman, Oulu, FI;
Jaakko Eino Ilmari Vihriala, Oulu, FI;
Matti Tapani Kiiski, Oulunsalo, FI;
Olli Juhani Piirainen, Oulu, FI;
Markku Juha Vainikka, Oulu, FI;
Vinh Van Phan, Oulu, FI;
Ling Yu, Oulu, FI;
Kari Veikko Horneman, Oulu, FI;
Jaakko Eino Ilmari Vihriala, Oulu, FI;
Matti Tapani Kiiski, Oulunsalo, FI;
Olli Juhani Piirainen, Oulu, FI;
Markku Juha Vainikka, Oulu, FI;
Nokia Siemens Networks Oy, Espoo, FI;
Abstract
A method, apparatus, and computer program for continuing transmission during handover are presented. A communication connection is established between a source base station and a mobile relay base station comprising a distributed antenna system (DAS). The DAS includes multiple spatially distributed antenna units (DAUs), wherein at least part of the DAUs are used for forming a cluster of sub-cells within a coverage area of the mobile relay base station and at least part of the DAUs are used for communicating with a fixed cellular network infrastructure over multiple backhaul links. A first backhaul link is then handed over from the source base station to a target base station. After the handover, data transfer between the source base station and at least one backhaul link still linked to the source base station is continued, and remaining backhaul link(s) are released from the source base station according to a determined criterion.