Title:
TRANSMITTER APPARATUS, RECEIVER APPARATUS, COMMUNICATION SYSTEM AND TRANSMISSION METHOD
Document Type and Number:
WIPO Patent Application WO/2011/040598
Kind Code:
A1
Abstract:
Even when a terminal, which is to perform CA, transmits a transport signal having a plurality of CCs by use of PAs the number of which is smaller than that of those CCs, a high-efficiency communication can be achieved with the compatibility with LTE being maintained. A transmitter apparatus, which uses a plurality of carrier components to transmit information, comprises: a combining unit (115) including amplifiers the number of which is smaller than that of carrier components; required transmission power calculating units (105-1 to 105-5) each for calculating a desired transmission power for a respective one of the carrier components; a maximum permissible transmission power setting unit (109) for setting the maximum permissible transmission power; and PH calculating units (107-1 to 107-5) each for calculating a PH (Power Headroom) between the maximum permissible transmission power and the respective required transmission power.
Inventors:
NAKAMURA OSAMU
HAMAGUCHI YASUHIRO
YAMADA SHOHEI
YOKOMAKURA KAZUNARI
GOTO JUNGO
TAKAHASHI HIROKI
HAMAGUCHI YASUHIRO
YAMADA SHOHEI
YOKOMAKURA KAZUNARI
GOTO JUNGO
TAKAHASHI HIROKI
Application Number:
PCT/JP2010/067251
Publication Date:
April 07, 2011
Filing Date:
October 01, 2010
Export Citation:
Assignee:
SHARP KK (JP)
NAKAMURA OSAMU
HAMAGUCHI YASUHIRO
YAMADA SHOHEI
YOKOMAKURA KAZUNARI
GOTO JUNGO
TAKAHASHI HIROKI
NAKAMURA OSAMU
HAMAGUCHI YASUHIRO
YAMADA SHOHEI
YOKOMAKURA KAZUNARI
GOTO JUNGO
TAKAHASHI HIROKI
International Classes:
H04W52/18; H04J1/00; H04J11/00; H04W52/52
Domestic Patent References:
| WO2008052195A2 | 2008-05-02 | |||
| WO2006082664A1 | 2006-08-10 |
Foreign References:
| JP2001136152A | 2001-05-18 | |||
| JP2001007760A | 2001-01-12 |
Attorney, Agent or Firm:
FUKUCHI, Takeo (JP)
Fukuchi Takeo (JP)
Fukuchi Takeo (JP)
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