Title:
A wireless communication method and radio communication equipment
Document Type and Number:
Japanese Patent JP6041972
Kind Code:
B2
Abstract:
Radio communication method comprising the steps of spreading an acknowledgement/non-acknowledgement (ACK/NACK) signal with an orthogonal sequence, selected from a plurality of orthogonal sequences including more orthogonal sequences that render two values respectively corresponding to Nth symbol and Mth symbol of an ACK/NACK signal transmission slot in phase, than orthogonal sequence(s) that render said two values in opposite phases from each other, of transmitting the spread ACK/NACK signal in the ACK/NACK signal transmission slot, of arranging two reference signals produced by multiplying two reference signal sequences with values having opposite phases from each other, in the Nth symbol and the Mth symbol of a CQI signals transmission slot, and arranging channel quality indicator signals in symbols of the CQI signals transmission slot other than the Nth symbol and the Mth symbol, and of transmitting the reference and CQI signals arranged in the CQI signals transmission slot.
Inventors:
Masago Nakao
Daichi Imamura
Yoshihiko Ogawa
Atsushi Matsumoto
Katsuhiko Hiramatsu
Daichi Imamura
Yoshihiko Ogawa
Atsushi Matsumoto
Katsuhiko Hiramatsu
Application Number:
JP2015257009A
Publication Date:
December 14, 2016
Filing Date:
December 28, 2015
Export Citation:
Assignee:
Joint company ip bridge No. 1
International Classes:
H04J13/22; H04B1/707; H04J11/00; H04J13/00; H04J13/18; H04L27/01
Domestic Patent References:
| JP2005244967A |
Foreign References:
| US20150055643 |
Other References:
Nokia Siemens Networks, Nokia,Performance of CQI+ACK/NACK transmission on PUCCH, 3GPP TSG-RAN WG1#49b R1-073003,2007年 6月20日
NTT DoCoMo, Ericsson, Fujitsu, Mitsubishi Electric, Sharp, Toshiba Corporation,CDM-based Multiplexing Method of Multiple ACK/NACK and CQI for E-UTRA Uplink,3GPP TSG RAN WG1 Meeting #46bis R1-062742,2006年10月13日,pp.1-6
Nokia Siemens Networks, Nokia,Multiplexing capability of CQIs and ACK/NACKs form different UEs,3GPP TSG RAN WG1 Meeting #49 R1-072315,2007年 5月 7日
Motorola,Uplink Transmission of CQI and Ack/Nack, 3GPP TSG-RAN WG1#49b R1-072706,2007年 6月20日
NTT DoCoMo, Ericsson, Fujitsu, Mitsubishi Electric, Sharp, Toshiba Corporation,CDM-based Multiplexing Method of Multiple ACK/NACK and CQI for E-UTRA Uplink,3GPP TSG RAN WG1 Meeting #46bis R1-062742,2006年10月13日,pp.1-6
Nokia Siemens Networks, Nokia,Multiplexing capability of CQIs and ACK/NACKs form different UEs,3GPP TSG RAN WG1 Meeting #49 R1-072315,2007年 5月 7日
Motorola,Uplink Transmission of CQI and Ack/Nack, 3GPP TSG-RAN WG1#49b R1-072706,2007年 6月20日
Attorney, Agent or Firm:
Koichi Washida