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MBMS transmission method and device for multi-carrier wave mobile communication system

A mobile communication system and multi-carrier technology, which is applied in the field of multi-carrier system transmission of multimedia broadcast multicast service data, can solve problems such as the inability to use multi-carrier systems, increase terminal power consumption, and affect the transmission rate of MBMS services, so as to improve the transmission rate , The effect of reducing the receiving time

Inactive Publication Date: 2008-10-29
CHINA ACAD OF TELECOMM TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] To sum up, the existing 3GPP system does not introduce multi-carrier mode. The protocol only describes the MBMS transmission process of a single-carrier system. The same MBMS service can only be transmitted on one carrier, which affects the transmission rate of MBMS services and increases the number of terminal UEs. receiving time, which increases the power consumption of the terminal
For multi-carrier mobile communication systems, such as multi-carrier TD-SCDMA systems, the characteristics of multi-carrier resources should be fully utilized to transmit MBMS service data, but the existing MBMS transmission scheme for single-carrier systems cannot be used for multi-carrier systems

Method used

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  • MBMS transmission method and device for multi-carrier wave mobile communication system
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  • MBMS transmission method and device for multi-carrier wave mobile communication system

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Embodiment Construction

[0067] In order to realize the splitting of one MBMS service data and the parallel transmission on multiple carrier resources, the technical solution adopted in the embodiment of the present invention is to enhance the function of the MAC-m module. An MTCH carrying MBMS service data is processed by the enhanced MAC-m layer. , and finally mapped to multiple SCCPCHs, these SCCPCHs are configured on different carrier resources by the system, or the carriers configured by some SCCPCHs are the same (this part of SCCPCHs occupy different time slot resources of the same carrier) and are different from the carrier resources configured by other SCCPCHs, or All SCCPCHs are configured on the same carrier (but the time slot resources occupied by each SCCPCH are different). In order to clearly illustrate the technical solution of the present invention, the embodiment focuses on the situation where the SCCPCH is configured by the system on different carrier resources. In other cases, There i...

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Abstract

The invention relates to a method and a device for transmitting multimedia broadcast multicast services (MBMS) in a multicarrier mobile communication system. By fully utilizing features of multicarrier resources, the transmission speed of the MBMS is accelerated and the receiving time of a terminal is reduced, thereby achieving the effect of electricity saving. Each secondary common control physical channel (SCCPCH) transmitting MBMS data is configured on a carrier resource by a system, and a plurality of SCCPCHs are configured on a plurality of carrier resources; when the MBMS data passes through an MAC-m substance at the transmission side, the MBMS data are distributed to a plurality of traffic channels, namely, FACHs, a plurality of FACHs are mapped to a plurality of SCCPCHs through one or a plurality of Iub transmission bearers and transmitted on a plurality of SCCPCH carrier resources in parallel, but when adopting one Iub transmission bearer, a synergy FACH data frame structure is adopted; the MBMS data is received by the receiving side on a plurality of SCCPCH carrier resources and transmitted to the MAC-m substance at the receiving side to realize the combination of the data, and the MBMS data on a plurality of SCCPCH carrier resources is combined into an MBMS datum.

Description

technical field [0001] The present invention relates to the data transmission technology of the mobile communication system, more specifically to the method and device for transmitting Multimedia Broadcast Multicast Service (MBMS, Multimedia Broadcast Multicast Service) data in a multi-carrier system. Background technique [0002] The Multimedia Broadcast Multicast Service (MBMS) was introduced in 3GPP Release6. MBMS refers to a point-to-multipoint service, in which one data source sends data to multiple users, and is used to realize the sharing of core network and access network resources, especially the sharing of air interface resources. MBMS defined by 3GPP can not only realize plain text low-rate message multicast and broadcast, but also realize high-rate multimedia service multicast and broadcast. [0003] The protocol adds new channels for the system to implement MBMS functions, including: MBMS notification indicator channel (MICH, MBMS notification Indicator Channel...

Claims

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Application Information

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IPC IPC(8): H04B7/26H04Q7/22H04L12/56H04L5/06H04L45/16H04W4/06
CPCH04W4/06
Inventor 杨君云毛磊赵训威张大钧
Owner CHINA ACAD OF TELECOMM TECH
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