Invention Grant
US07974179B2 Transmitting apparatus and method which transmit symbols in OFDM and receiving apparatus and method for use with OFDM communications
有权
在OFDM和接收装置中发送符号的发送装置和方法以及用于OFDM通信的方法
- Patent Title: Transmitting apparatus and method which transmit symbols in OFDM and receiving apparatus and method for use with OFDM communications
- Patent Title (中): 在OFDM和接收装置中发送符号的发送装置和方法以及用于OFDM通信的方法
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Application No.: US12857003Application Date: 2010-08-16
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Publication No.: US07974179B2Publication Date: 2011-07-05
- Inventor: Akihito Morimoto , Yoshihisa Kishiyama , Nobuhiko Miki , Kenichi Higuchi , Mamoru Sawahashi
- Applicant: Akihito Morimoto , Yoshihisa Kishiyama , Nobuhiko Miki , Kenichi Higuchi , Mamoru Sawahashi
- Applicant Address: JP Tokyo
- Assignee: NTT DoCoMo, Inc.
- Current Assignee: NTT DoCoMo, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Osha • Liang LLP
- Priority: JP2006-127986 20060501
- Main IPC: H04J11/00
- IPC: H04J11/00

Abstract:
A transmitting apparatus which transmits a transmit symbol in orthogonal-frequency division multiplexing (OFDM) is disclosed. The transmitting apparatus includes a unit which provides a unicast channel; a unit which provides a multimedia broadcast multicast service (MBMS) channel; a unit which provides a specific pilot channel which is specific to a specified cell; a unit which provides one or more common pilot channels common to a plurality of cells; and a multiplexing unit which multiplexes the unicast channel, the MBMS channel, the specific pilot channel, and the one or more common pilot channels, and creates the transmit symbol, wherein the multiplexing unit time-division multiplexes, in the same frequency band, a unicast frame which includes the unicast channel, and an MBMS frame which includes the MBMS channel, and wherein an insertion density of the common pilot channel included in the MBMS frame is larger than an insertion density of the specific pilot channel included in the unicast frame.
Public/Granted literature
- US20100310025A1 TRANSMITTING AND RECEIVING APPARATUSES AND METHODS Public/Granted day:2010-12-09
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