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.

Date of Patent:
Jul. 28, 2015

Filed:

May. 16, 2013
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventors:

Yoshiaki Ohta, Kawasaki, JP;

Yoshiharu Tajima, Kawasaki, JP;

Kazuhisa Obuchi, Kawasaki, JP;

Yoshihiro Kawasaki, Kawasaki, JP;

Yoshinori Tanaka, Kawasaki, JP;

Katsumasa Sugiyama, Kawasaki, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 4/00 (2009.01); H04W 36/00 (2009.01); H04L 12/801 (2013.01); H04W 36/02 (2009.01); H04L 12/861 (2013.01);
U.S. Cl.
CPC ...
H04W 36/0005 (2013.01); H04L 47/10 (2013.01); H04L 47/14 (2013.01); H04L 47/34 (2013.01); H04L 49/9057 (2013.01); H04W 36/02 (2013.01); H04W 36/023 (2013.01);
Abstract

A mobile station that includes a receiving means for receiving first PDCP (Packet Data Convergence Protocol) PDU (Protocol Data Unit) to which a first sequence number is added from a source base station; a receiving means for receiving second PDCP PDU from a target base station that applies a second sequence number transferred from the source base station as a sequence number of PDCP (Packet Data Convergence Protocol) SDU (Service Data Unit) received from a host station and creates the second PDCP PDU and a storage means for storing PDCP SDU corresponding to the first PDCP PDU and PDCP SDU corresponding to the second PDCP PDU and means for performing in order delivery of the stored PDCP SDUs based on the sequence numbers corresponding to the PDCP SDUs.


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