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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

Inactive Publication Date: 2012-07-04
NUFRONT MOBILE COMM TECH
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  • Description
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AI Technical Summary

Problems solved by technology

[0011] When the broadcast network and the mobile communication network are independently networked, at least a 20MHz frequency guard band is required to resist interference between the two systems, resulting in a serious waste of frequency resources;
[0012] The independent networking of the two requires two sets of independent transmission networks, blind area supplementary coverage facilities, and two sets of operation management platforms. This kind of redundant construction will inevitably lead to very expensive network deployment costs.

Method used

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  • High-speed multimedia broadcast technique implementing method under WCDMA mechanism
  • High-speed multimedia broadcast technique implementing method under WCDMA mechanism
  • High-speed multimedia broadcast technique implementing method under WCDMA mechanism

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Embodiment Construction

[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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Abstract

The invention relates to a method providing real-time broadcasting services in a WCDMA mobile communication network, which sets up a professional broadcasting network in the existing WCDMA network, and the broadcasting network adopts dedicated carrier frequency and OFDM modulation technique to support high-speed multimedia broadcasting services; sending sets of all cellular cells in the broadcasting network adopt the same frequency, send the same information, realize single-frequency global coverage, and do not need to divide location area; when the dedicated carrier frequency is used for realizing single-frequency global coverage, a mobile terminal does not need cell switching when moving among all the cellular cells of the broadcasting network; a broadcasting system and a communication system coexist with the same frequency band, and can share a station, a device and an interior distribution system; and a broadcasting receiver module of the terminal and the original receiver module coexist with the same frequency band, and can share an antenna.

Description

technical field [0001] The invention relates to the technical field of digital multimedia wireless transmission, in particular to a method for providing real-time broadcasting services in a WCDMA mobile communication system. Background technique [0002] At present, the multimedia broadcasting service is becoming a hot spot in the world and a new growth point of the mobile communication industry. Watching multimedia broadcasting programs through mobile phones will become a new killer application in the "3G" era. How to provide high-quality audio and video services is a weakness of the 3G system. This is also an important factor restricting the development of the 3G system, and it is also one of the important reasons for the extensive development of 4G research and development in the world. [0003] At present, there are two main ways to provide multimedia broadcasting services on mobile terminals: [0004] A method based on mobile communication network such as MBMS technolo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/02
Inventor 鲍东山鲍盛王凯张健李旭明
Owner NUFRONT MOBILE COMM TECH
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