(19)
(11) EP 2 704 503 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
14.05.2014 Bulletin 2014/20

(43) Date of publication:
05.03.2014 Bulletin 2014/10

(21) Application number: 12777443.8

(22) Date of filing: 20.04.2012
(51) International Patent Classification (IPC): 
H04W 72/04(2009.01)
H04J 13/18(2011.01)
H04W 16/28(2009.01)
 H04J 11/00(2006.01)
H04J 99/00(2009.01)
H04W 28/16(2009.01)
(86) International application number:
PCT/JP2012/060682
(87) International publication number:
WO 2012/147640 (01.11.2012 Gazette 2012/44)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 27.04.2011 JP 2011099261

(71) Applicant: Sharp Kabushiki Kaisha
Osaka-shi, Osaka 545-8522 (JP)

(72) Inventors:
  • SHIMEZAWA, Kazuyuki
    Osaka 545-8522 (JP)
  • NOGAMI, Toshizo
    Osaka 545-8522 (JP)
  • IMAMURA. Kimihiko
    Osaka 545-8522 (JP)
  • NAKASHIMA, Daiichiro
    Osaka 545-8522 (JP)

(74) Representative: Müller - Hoffmann & Partner 
Patentanwälte St.-Martin-Strasse 58
81541 München
81541 München (DE)

   


(54) BASE STATION, TERMINAL, COMMUNICATIONS SYSTEM, COMMUNICATIONS METHOD, AND INTEGRATED CIRCUIT


(57) In a radio communications system in which a base station and a terminal communicate with each other, the base station is capable of efficiently notifying the terminal of control information. The base station forms a cell, and communicates with the terminal. The base station sets monitoring of a second control channel in the terminal through RRC signaling that is higher-layer control information, the second control channel being a control channel different from a first control channel detectable by the terminal regardless of whether the terminal is in connected state or idle state and being detectable by the terminal only in a case where the terminal is in the connected state. The base station transmits control information for the terminal by mapping the control information to the second control channel. The connected state is a state where the terminal holds information concerning a network, and the idle state is a state where the terminal does not hold information concerning a network.