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:
Mar. 07, 2017
Filed:
Jul. 05, 2013
Ntt Docomo, Inc., Tokyo, JP;
Tooru Uchino, Tokyo, JP;
Hideaki Takahashi, Tokyo, JP;
Akihito Hanaki, Tokyo, JP;
Wuri Andarmawanti Hapsari, Tokyo, JP;
Kenichiro Aoyagi, Tokyo, JP;
Shogo Yabuki, Tokyo, JP;
NTT DOCOMO, INC., Tokyo, JP;
Abstract
Even when handover processing to a radio base station T-eNB not supporting 'extended PDCP-SN' is performed on a mobile station UE communicating with a radio base station S-eNB supporting 'extended PDCP-SN,' the communications are continued. A mobile communication method according to the invention includes the steps of: causing a radio base station S-eNB to determine to perform handover processing of a mobile station UE to a radio base station T-eNB not supporting “extended PDCP-SN” in a state where a first bearer using “extended PDCP-SN” is established with the mobile station UE, and causing the radio base station S-eNB to create “RRC connection reconfiguration” which instructs deletion of the first bearer and addition of a second bearer using “conventional PDCP-SN” and to transmit “RRC connection reconfiguration” to the mobile station UE.