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Method and device for transmitting data and method and device for receiving data

A data transmission method and data packet technology, applied in the field of data transmission method, device and data receiving method and device, can solve problems such as waste of wireless resources, achieve the effects of improving quality, improving utilization rate, and ensuring timeliness

Active Publication Date: 2009-12-16
WANBANG CHARGING EQUIP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a data transmission method and device, and a data receiving method and device to solve the problem of waste of wireless resources caused by using one multiplexing subframe to transmit one service, realize full use of wireless resources, and improve data transmission speed

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  • Method and device for transmitting data and method and device for receiving data
  • Method and device for transmitting data and method and device for receiving data
  • Method and device for transmitting data and method and device for receiving data

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Embodiment Construction

[0053] For a data service with a relatively large amount of data, the present invention uses the idle data segments of other multiplexed subframes other than the multiplexed subframe corresponding to the data service to transmit the data of the service, so as to realize full utilization of wireless resources and improve data transmission speed.

[0054] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0055] Figure 4 The processing flow of the data transmission method of the present invention in the front-end system includes:

[0056] 401: The data broadcast server divides the data in the file mode of a data service into file blocks, divides the file block into file slices, encapsulates the file slices into data packets, or encapsulates the stream mode data into data packets, and The data packets sent to the multiplexer;

[0057] Figure 5 For the data processing process in the data broadcast server, th...

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Abstract

The invention discloses a data transmission method. The method comprises the following steps that: a multiplexer receives a data packet of data services, encapsulates the data packet in a multiplex subframe corresponding to the data services, searches a multiplex subframe with an idle data field, and encapsulates the data packet of the data services in the idle data field of the multiplex subframe; a 'service index value' field is inserted or expanded into the multiplex subframe which encapsulates the data packet of the data services in a multiplex configuration table, and the field value of the 'service index value' field is set to the same; the multiplex subframe is encapsulated into a multiplex frame; and a modulator modulates the multiplex frame onto electromagnetic waves of a physical channel, and the electromagnetic waves are transmitted into the air by transmission equipment. In a mobile multimedia broadcasting system, the data transmission method utilizes the idle data field of the multiplex subframe to transmit a large amount of service data to increase the utilization rate of wireless channel resources and file download speed, ensure the timeliness of data update, and improve the overall quality of information service.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a data transmission method and device, and a data receiving method and device. Background technique [0002] In recent years, digital mobile multimedia broadcasting technology and standards have developed rapidly, for example, DVB-H (Digital Video Broadcast Handheld, digital video broadcasting handheld reception) in Europe, MediaFLO (Media Forward Link Only, media single forward link) in the United States And China's CMMB (China Mobile Multimedia Broadcasting, mobile multimedia broadcasting), various standards provide end users with a variety of service content, such as: advertisements, weather forecasts, news, sports programs, variety shows, multimedia radio dramas and movies, etc. Users can choose the service programs of mobile multimedia broadcasting according to their own preferences. [0003] Mobile multimedia broadcasting technology uses time division ...

Claims

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Application Information

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IPC IPC(8): H04N7/52H04N7/24
Inventor 韦福
Owner WANBANG CHARGING EQUIP CO LTD
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