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Method and system for data synchronization of multimedia multicast and broadcast service

A technology for multimedia multicasting and broadcasting services, applied in the field of mobile communication value-added services, can solve the problem of impossible to synchronously send the same MBMS service, not provided, etc., and achieve the effect of improving reception gain and avoiding co-channel interference

Inactive Publication Date: 2009-01-21
ZTE CORP
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AI Technical Summary

Problems solved by technology

The introduction of this technology brings new problems: since the signals from different base stations are regarded as multi-path by the UE, it is required that the data of each path must be sent synchronously
[0009] In the existing protocol, no mechanism is provided to ensure the requirements of the above two aspects, which leads to the impossibility of sending the same MBMS service synchronously between cells belonging to different RNCs

Method used

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  • Method and system for data synchronization of multimedia multicast and broadcast service
  • Method and system for data synchronization of multimedia multicast and broadcast service
  • Method and system for data synchronization of multimedia multicast and broadcast service

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Embodiment Construction

[0032] First, explain the basis of the present invention:

[0033] Define a centralized MBMS service user plane processing network element Central Process Node, referred to as CPN; define a distributed network element as distributed Process Node, referred to as DPN, and DPNs need to send MBMS services synchronously

[0034] Second, if figure 1 As shown, the method of the present invention is described:

[0035] (1) The DPN network element 2 and the CPN network element 3 maintain the same configuration through the configuration or control plane signaling process. The configuration includes: PDCP protocol configuration, RLC protocol configuration, and MAC-m protocol configuration.

[0036] Time synchronization is implemented between the DPN and the CPN to provide the sending time stamp of the MBMS service data packets. Optionally, the CPN and DPN are synchronized to the same reference clock source, such as GPS. Optionally, the node synchronization between the two network ele...

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Abstract

The present invention relates to a data synchronization method of multimedia multicast broadcast business, and a system thereof. The system comprises a centralized user-surface processing network element (3) and a distributed network element (2). In the method, the centralized user-surface processing network element in the mobile network is used for processing the multimedia multicast broadcast business data (100) and for setting the synchronization information which is packaged and transmitted to each distributed network element in the mobile network; each distributed network element is used for reducing and analyzing the multimedia multicast broadcast business data and for transmitting the data to the mobile terminal (1) according to the synchronization information. The method and the system solve the problem of synchronous transmission of the same MBMS business between different RNC districts, improve the reception gain of the terminal MBMS business, and prevent the same frequency interference of the MBMS business between different RNC districts.

Description

technical field [0001] The invention relates to mobile communication value-added services, in particular to a method and system for synchronizing service data of a multimedia broadcast / multicast service (MBMS for short). Background technique [0002] Now people's demand for mobile communication is no longer satisfied with telephone and message services. With the rapid development of the Internet, a large number of multimedia services have emerged. For some of these applications, multiple users can receive the same data at the same time, such as video on demand, TV broadcasting, video conferencing, online education, and interactive games. MBMS technology is proposed to achieve the most effective use of mobile network resources. It refers to a point-to-multipoint service in which one data source sends data to multiple users, and realizes network resource sharing, including mobile core network and access network resource sharing, especially the air interface. resource. The MB...

Claims

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Application Information

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IPC IPC(8): H04B7/26H04Q7/22H04L12/56H04L29/06
CPCH04W56/001
Inventor 艾建勋储俊林
Owner ZTE CORP
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