High-speed multimedia broadcast technique implementing method under WCDMA mechanism
A technology of multimedia broadcasting and its implementation method, which is applied in the field of real-time broadcasting business, can solve the problems of waste of frequency resources and high cost of network deployment, and achieve the effect of avoiding repeated investment and reducing costs
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[0057] In order to make the object, technical solution and advantages of the present invention clearer, the theoretical analysis and specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0058] The present invention implements, at first will select and transform the broadcast system (such as T-MMB, DVB-H, T-DMB and other technologies) using OFDM technology in the existing broadcast frequency band. If the working frequency and bandwidth of the WCDMA system are used to transmit the signal of the broadcast network, the selected broadcast system is required to meet the following two conditions:
[0059] 1) Broadcast network signals can be transmitted within a 5MHz bandwidth;
[0060] 2) The broadcast transmission mode needs to support the WCDMA working frequency band;
[0061] If you choose DVB-H system (this system adopts coherent demodulation system and its transmission mode is only designed for UHF band...
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