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Method for realizing multimedia broadcasting and multicasting service data synchronized transmission

A technology for multimedia broadcasting and multicasting services, which is applied in the field of synchronous transmission of multimedia broadcasting and multicasting service data, and can solve the problems that the base station does not support, the base station does not support node synchronization, and cannot realize MBMS data synchronous transmission, etc.

Active Publication Date: 2007-09-26
HUAWEI TECH CO LTD
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0007] However, the above method cannot be applied when the base station does not support node synchronization
The base stations of some manufacturers do not support node synchronization, so it is impossible to realize the synchronous transmission of MBMS data based on node synchronization

Method used

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  • Method for realizing multimedia broadcasting and multicasting service data synchronized transmission
  • Method for realizing multimedia broadcasting and multicasting service data synchronized transmission
  • Method for realizing multimedia broadcasting and multicasting service data synchronized transmission

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Embodiment Construction

[0016] In order to make the object, technical solution and advantages of the present invention clearer, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0017] In transmission channel synchronization, the base station controller (RNC) sends a downlink synchronization control frame (DLSYNCHRONISATION control frame) to the base station (NodeB), and the frame contains a connection frame number CFN. When the NodeB receives the downlink synchronization frame, it immediately responds with an uplink synchronization control frame (UL SYNCHRONISATION control frame), which contains CFN and corresponding time of arrival (TOA).

[0018] The data frame sent by the RNC to the base station includes a connection frame number (CFN), and the base station can obt...

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Abstract

The invention provides a method of realizing multimedia broadcasting and group broadcasting operation transmission in-phase, the method includes: data is marked with time when generating multimedia broadcasting and group broadcasting operation data, and deciding the transmission time of empty port according to the time mark; calculating the data transmission frame number of areola based on the transmission time of empty port. The implement of the invention can realize the synchronization transmission of MBMS operation in an areola on condition that base station does not support node synchronization.

Description

technical field [0001] The invention relates to the field of multimedia broadcast and multicast service (MBMS), in particular to a method for realizing synchronous transmission of multimedia broadcast and multicast service data. Background technique [0002] In a traditional mobile network, the Cell Broadcast Service allows low bit rate data to be sent to all users through the cell shared broadcast channel, which belongs to the message service. Now, people's demand for mobile communication is no longer satisfied with telephone and messaging services. With the rapid development of the Internet, a large number of multimedia services have emerged. In order to effectively utilize mobile network resources, WCDMA global standardization organization 3GPP (3rd Generation Partnership Project) proposed Multimedia Broadcast and Multicast Service (MBMS: Multimedia Broadcast and Multicast Service), which provides a data source in the mobile network to send data to multiple users The Poi...

Claims

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Application Information

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IPC IPC(8): H04B7/26H04L12/18H04Q7/22
Inventor 陈力李元军张灿
Owner HUAWEI TECH CO LTD
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