Invention Grant
- Patent Title: Multipoint data transmission
- Patent Title (中): 多点数据传输
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Application No.: US12072638Application Date: 2008-02-26
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Publication No.: US08908611B2Publication Date: 2014-12-09
- Inventor: Kaj Jansen , Markku J. Heikkilä , Ulo Parts , Juha Heiskala , Zoltan Safar
- Applicant: Kaj Jansen , Markku J. Heikkilä , Ulo Parts , Juha Heiskala , Zoltan Safar
- Applicant Address: FI Espoo
- Assignee: Nokia Corporation
- Current Assignee: Nokia Corporation
- Current Assignee Address: FI Espoo
- Agency: Harrington & Smith
- Priority: FI20075142 20070226
- Main IPC: H04B7/26
- IPC: H04B7/26 ; H04B7/02

Abstract:
A semi-single frequency network (SFN) concept is presented. According to the SFN concept, the same data signal is transmitted from multiple base stations to a mobile terminal simultaneously on the same frequency band. Accordingly, the transmitted signals are combined in the radio channel and the mobile terminal experiences the transmitted signals as one signal propagated through a multipath channel. Additionally, each base station transmits a base station specific pilot signal. The mobile terminal carries out a channel estimation procedure for each received pilot signal and combines the channel estimates to obtain information how to equalize the received data signal. Then, the mobile terminal calculates equalization weights from the combined channel estimates and equalizes the received data signal.
Public/Granted literature
- US20080268887A1 Multipoint data transmission Public/Granted day:2008-10-30
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