Title:
A base station and a method
Document Type and Number:
Japanese Patent JP6162987
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a technique to deactivate a secondary cell at timing intended by a base station.SOLUTION: One aspect of the invention relates to a base station that includes: a signal transmitting/receiving unit for communicating radio signals with a user device; a cell management unit for managing a primary cell and a secondary cell allocated to the user device to communicate the radio signal; and a timer management unit for managing a timer to control an active state of the secondary cell. The timer management unit includes a secondary cell deactivation timer activated or re-activated in response to a prescribed trigger in order to deactivate the secondary cell. When the secondary cell deactivation timer expires, the cell management unit instructs the signal transmitting/receiving unit to transmit a deactivation instruction to deactivate the secondary cell to the user device allocated to the secondary cell.
Inventors:
Toru Uchino
Kiyoshima Kohei
Kiyoshima Kohei
Application Number:
JP2013057661A
Publication Date:
July 12, 2017
Filing Date:
March 21, 2013
Export Citation:
Assignee:
Ntt docomo, Inc.
International Classes:
H04W24/04; H04W72/04
Foreign References:
| WO2011120448A1 | ||||
| WO2012095147A1 | ||||
| WO2013024333A2 | ||||
| US20110170420 |
Other References:
"Discussion on restarting deactivation timer at Scell reactivation",3GPP TSG RAN WG2 #72bis R2-110470,2011年 1月17日,pp.1-5
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Tadahiko Ito
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