Invention Grant
US07961699B2 Apparatus and methods of transmitting and receiving a multimedia-broadcast multicast service (MBMS) channel
有权
发送和接收多媒体广播多播服务(MBMS)信道的装置和方法
- Patent Title: Apparatus and methods of transmitting and receiving a multimedia-broadcast multicast service (MBMS) channel
- Patent Title (中): 发送和接收多媒体广播多播服务(MBMS)信道的装置和方法
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Application No.: US12298996Application Date: 2007-04-19
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Publication No.: US07961699B2Publication Date: 2011-06-14
- 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
- International Application: PCT/JP2007/058519 WO 20070419
- International Announcement: WO2007/129537 WO 20071115
- Main IPC: H04B7/208
- IPC: H04B7/208

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
- US20090196165A1 TRANSMITTING AND RECEIVING APPARATUSES AND METHODS Public/Granted day:2009-08-06
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