Title:
TRANSMITTER APPARATUS, RECEIVER APPARATUS, TRANSMISSION METHOD, AND NOTIFICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2011/135788
Kind Code:
A1
Abstract:
This invention relates to a transmitter apparatus, a receiver apparatus, a transmission method and a notification method that, when a switching between MIMO communication and non-MIMO communication is performed, can suppress the increase of an SRS (Sounding Reference Signal) resource, while suppressing the degradation of trackability of temporal variation of a channel. In a terminal (200), a mapping unit (212) maps an SRS sequence, which is received from a pilot generating unit (216), on the basis of information related to an SRS hopping pattern received from a base station (100). For this SRS hopping pattern, the frequency of the SRS transmissions via a first one of a plurality of antennas of the terminal (200) is higher than that of the SRS transmissions via a second one of the plurality of antennas of the terminal (200).
Inventors:
OGAWA YOSHIHIKO
NISHIO AKIHIKO
NAKAO SEIGO
HOSHINO MASAYUKI
HORIUCHI AYAKO
NISHIO AKIHIKO
NAKAO SEIGO
HOSHINO MASAYUKI
HORIUCHI AYAKO
Application Number:
PCT/JP2011/002170
Publication Date:
November 03, 2011
Filing Date:
April 12, 2011
Export Citation:
Assignee:
PANASONIC CORP (JP)
OGAWA YOSHIHIKO
NISHIO AKIHIKO
NAKAO SEIGO
HOSHINO MASAYUKI
HORIUCHI AYAKO
OGAWA YOSHIHIKO
NISHIO AKIHIKO
NAKAO SEIGO
HOSHINO MASAYUKI
HORIUCHI AYAKO
International Classes:
H04W72/04; H04J99/00; H04W16/28
Other References:
MITSUBISHI ELECTRIC: "UL Sounding RS Control Signaling for Closed Loop Antenna Selection", 3GPP RAN WG1 #51BIS, R1-080017, 14 January 2008 (2008-01-14), XP050108563
MOTOROLA: "Views on SRS Enhancements for LTE-A", 3GPP TSG RAN WG1 #60BIS, R1-102142, 12 April 2010 (2010-04-12), XP050419444
QUALCOMM INCORPORATED: "SRS Enhancements for LTE-A", 3GPP TSG RANI WG1 #60BIS, R1-102341, 12 April 2010 (2010-04-12), XP050419570
WUYUAN LI ET AL.: "A New Transmit Diversity Method Based on Waterpouring Principle in Multiple Antennas Systems", PROCEEDINGS OF THE 2010 2ND INTERNATIONAL CONFERENCE ON INFORMATION SCIENCE AND ENGINEERING (ICISE), 4 December 2010 (2010-12-04), XP031851793
See also references of EP 2566267A4
3GPP: "3GPP TSG RAN; E-UTRA Radio Resource Control (RRC); Protocol specification (TS36.331 v8.8.0)", 3GPP
3GPP: "3GPP TSG RAN; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical Channels and Modulation(TS36.211 v8.9.0)", 3GPP
3GPP: "Views on SRS Enhancement for LTE-Advanced (Rl-102305)", 3GPP
MOTOROLA: "Views on SRS Enhancements for LTE-A", 3GPP TSG RAN WG1 #60BIS, R1-102142, 12 April 2010 (2010-04-12), XP050419444
QUALCOMM INCORPORATED: "SRS Enhancements for LTE-A", 3GPP TSG RANI WG1 #60BIS, R1-102341, 12 April 2010 (2010-04-12), XP050419570
WUYUAN LI ET AL.: "A New Transmit Diversity Method Based on Waterpouring Principle in Multiple Antennas Systems", PROCEEDINGS OF THE 2010 2ND INTERNATIONAL CONFERENCE ON INFORMATION SCIENCE AND ENGINEERING (ICISE), 4 December 2010 (2010-12-04), XP031851793
See also references of EP 2566267A4
3GPP: "3GPP TSG RAN; E-UTRA Radio Resource Control (RRC); Protocol specification (TS36.331 v8.8.0)", 3GPP
3GPP: "3GPP TSG RAN; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical Channels and Modulation(TS36.211 v8.9.0)", 3GPP
3GPP: "Views on SRS Enhancement for LTE-Advanced (Rl-102305)", 3GPP
Attorney, Agent or Firm:
WASHIDA, KIMIHITO (JP)
Koichi Washida (JP)
Koichi Washida (JP)
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Claims: