Title:
BASE STATION DEVICE, TERMINAL DEVICE, COMMUNICATIONS METHOD, INTEGRATED CIRCUIT, AND COMMUNICATIONS SYSTEM
Document Type and Number:
WIPO Patent Application WO/2013/137091
Kind Code:
A1
Abstract:
This base station device comprises a terminal-specific control channel generating unit that generates terminal-specific control channels that are mapped and sent to a terminal-specific control channel area comprising a prescribed number of resource block pairs set uniquely to a terminal device. The base station device is characterized by each terminal-specific control channel candidate corresponding to a different resource block pair in the terminal-specific control channel area, and by mapping a terminal-specific control channel to one of the terminal-specific control channels, if the number of terminal-specific control channel candidates monitored by the terminal device is no greater than the number of resource block pairs in the terminal-specific control channel area, in each aggregation level indicating the number of expanded control elements used by one terminal-specific control channel. As a result, efficient notification of control information by the base station to a terminal is made possible in a wireless communications system in which the base station and the terminals communicate.
Inventors:
SHIMEZAWA KAZUYUKI
IMAMURA KIMIHIKO
NOGAMI TOSHIZO
NAKASHIMA DAIICHIRO
IMAMURA KIMIHIKO
NOGAMI TOSHIZO
NAKASHIMA DAIICHIRO
Application Number:
PCT/JP2013/056227
Publication Date:
September 19, 2013
Filing Date:
March 07, 2013
Export Citation:
Assignee:
SHARP KK (JP)
International Classes:
H04W72/04; H04W28/16
Other References:
PANASONIC: "Multiplexing of ePDCCHs and ePDCCH RE mapping", 3GPP TSG RAN WG1 MEETING #68 R1- 120237, 10 February 2012 (2012-02-10), XP050562794
RESEARCH IN MOTION ET AL.: "Search Space Design for E-PDCCH", 3GPP TSG RAN WG1 MEETING #68 R1-120330, 10 February 2012 (2012-02-10), XP050562859
NTT DOCOMO: "Mapping Design for E-PDCCH in Rel- 11", 3GPP TSG RAN WG1 MEETING #68 R1-120411, 10 February 2012 (2012-02-10), XP050562901
"3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Coordinated multipoint operation for LTE physical layer aspects (Release 11", 3GPP TR 36.819 VLL.0.0 (2011-09, September 2011 (2011-09-01)
See also references of EP 2827665A4
RESEARCH IN MOTION ET AL.: "Search Space Design for E-PDCCH", 3GPP TSG RAN WG1 MEETING #68 R1-120330, 10 February 2012 (2012-02-10), XP050562859
NTT DOCOMO: "Mapping Design for E-PDCCH in Rel- 11", 3GPP TSG RAN WG1 MEETING #68 R1-120411, 10 February 2012 (2012-02-10), XP050562901
"3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Coordinated multipoint operation for LTE physical layer aspects (Release 11", 3GPP TR 36.819 VLL.0.0 (2011-09, September 2011 (2011-09-01)
See also references of EP 2827665A4
Attorney, Agent or Firm:
YONETSU, Kiyoshi et al. (JP)
Kiyoshi Yonezu (JP)
Kiyoshi Yonezu (JP)
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