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Grading code transmission system for single frequency net

A technology of hierarchical coding and transmission system, which is applied in the field of hierarchical coding transmission system, multimedia broadcasting and multicasting business, and can solve the problems that path loss cannot realize no blind area, seamless coverage, service quality decline, and not proposed, so as to achieve saving And optimize transmission resources, improve service quality, and stabilize and balance the effect of service quality

Inactive Publication Date: 2009-06-17
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the effects of path loss, shadow fading, and fast fading make it impossible to achieve no-blind and seamless coverage under the single frequency network, and the service quality drops very seriously near the cell border, so it is difficult to use only the transmitting base stations in the cell. The user satisfaction rate of the entire network reaches a high level
However, the technical scheme of using hierarchical coding for single frequency network and applying E-NodeB for MBMS data transmission has not been proposed so far

Method used

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  • Grading code transmission system for single frequency net
  • Grading code transmission system for single frequency net
  • Grading code transmission system for single frequency net

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Embodiment Construction

[0029] According to an embodiment of the present invention, a hierarchical coding transmission system for a single frequency network is provided.

[0030] In the present invention, the E-Node B of the mobile cellular network in the single frequency network cell is used as the relay station for transmitting the MBMS service under the single frequency network, and cooperates with the single frequency network base station in the single frequency network to transmit the hierarchically coded MBMS service, In this way, service quality enhancement and coverage expansion within the coverage area are realized.

[0031] Such as image 3 As shown, the hierarchical coding transmission system for single frequency network according to the embodiment of the present invention includes: single frequency network base station (also called MBMS service transmitting base station, large base station) 302, used to send MBMS service data; E-Node B 304, used to receive MBMS service data from the sing...

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Abstract

The invention comprises: single frequency network base station used for sending MBMS service data; E-Node B used for receiving MBMS service data, and replaying the MBMS service data in its transmission time slot; and terminal used for receiving MBMS service data from the single frequency network base station and / or E-Node B. The invention can remove the possibility of interference and system closed-loop oscillatory.

Description

technical field [0001] The present invention relates to the communication field, and in particular, relates to a hierarchical coding transmission system for a single frequency network, which is especially suitable for multimedia broadcast and multicast services (abbreviated as MBMS). Background technique [0002] The MBMS service is a new service proposed by the 3rd Generation Partnership Project (referred to as 3GPP) in Release 6 and applied to the 3rd generation mobile communication system. MBMS can realize that one data source in the mobile network can send data to multiple users. It is a point-to-multipoint service. Its biggest feature is that it can effectively utilize wireless resources and network resources. [0003] Single-frequency networking means that all cells under the single-frequency network transmit the same service on the same frequency band at the same time. In LTE, the MBMS service is carried by single-frequency networking, and the OFDM transmission tech...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/20H04Q7/22H04Q7/38H04W4/06
Inventor 李国红袁广翔彭木根
Owner ZTE CORP
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