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Multimedia broadcast multicast service (MBMS) data forwarding and transmitting method, device and system

A technology of service data and forwarding method, which is applied in the field of mobile communication and can solve the problems of MBMS service data continuity and the like

Active Publication Date: 2011-05-25
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The present invention provides a method and device for forwarding MBMS service data, enabling RN to support the transmission of MBMS, thereby solving the problem of UE receiving MBMS service data continuity when moving to the coverage area of ​​RN cell

Method used

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  • Multimedia broadcast multicast service (MBMS) data forwarding and transmitting method, device and system
  • Multimedia broadcast multicast service (MBMS) data forwarding and transmitting method, device and system
  • Multimedia broadcast multicast service (MBMS) data forwarding and transmitting method, device and system

Examples

Experimental program
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Embodiment 1

[0061] In the first embodiment, the forwarding of the MBMS by the RN is invisible to the DeNB, and the RN cell and the Donor cell use the same MBMS configuration information (that is, the same MBMS service area information and MBSFN area configuration information). The RN receives the SIB2 and SIB13 through the broadcast of the DeNB, obtains the MBMS configuration information of the Donor cell, and directly broadcasts it to the UE. At the same time, the RN receives the MCCH and MTCH information related to the MBMS session according to the MBMS configuration information, and directly forwards them to complete the MBMS forwarding.

[0062] Such as Figure 5 As shown, it is a flow chart of the MBMS service data forwarding method provided by Embodiment 1 of the present invention, specifically including:

[0063] S501. The RN receives SIB2 and SIB13 through the system broadcast of the base station DeNB, and obtains the MBMS configuration information of the Donor cell;

[0064] Wh...

Embodiment 2

[0082] In the second embodiment, the forwarding of the MBMS by the RN is visible to the base station DeNB, and the RN cell and the Donor cell use the same MBMS configuration information. In the second embodiment, the DeNB transmits the MBMS configuration information of the Donor cell through RRC dedicated signaling It is sent to RN, so RN can inherit the MBMS configuration information of the Donor cell, and broadcast it to UEs within the coverage of RN. At the same time, the RN can receive the MCCH and MTCH information of the Donor cell according to the MBMS configuration information, and directly forward them to complete the MBMS forwarding.

[0083] Such as Figure 6 As shown, the flow chart of the MBMS service data forwarding method provided by Embodiment 2 specifically includes:

[0084] S601. The RN sends the capability information of whether MBMS forwarding is supported to the DeNB;

[0085] During the RRC connection establishment process initiated by the RN to the DeN...

Embodiment 3

[0104] In the third embodiment, the forwarding of MBMS by the RN is visible to the base station DeNB, and the RN cell and the Donor cell use the same MBMS service area information, and the MBSFN area configuration information of the RN cell and the Donor cell may be the same or different. In this embodiment, the RN sends the MBMS-related configuration information of the RN cell to the DeNB, and the DeNB reports the RN cell as part of its own cell list to the MCE, and the MCE configures and allocates MBSFN areas to all cells under the DeNB. MCCH scheduling information, the DeNB sends the MBSFN area configuration information of the RN cell and the MCCH scheduling information to the RN, so the RN can obtain the MBMS configuration information of the RN cell and broadcast it to the UE. At the same time, the RN can receive the MBMS service data related to the MBMS session according to the MBMS configuration information, and forward them to complete the forwarding of the MBMS service ...

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Abstract

The invention relates to the field of mobile communication, in particular to a multimedia broadcast multicast service (MBMS) data forwarding and transmitting method, a device and a system, enabling a remote node (RN) to support MBMS data transmission and solving the problem that a user equipment (UE) cannot continuously receive MBMS data when the UE moves into an area covered by RN cells. The method comprises the following steps that the RN acquires MBMS configuration information and broadcasts; the RN receives and synchronously forwards orthogonal frequency division multiplexing (OFDM) symbols which are mapped to a physical layer by a multicast control channel (MCCH) according to the MBMS configuration information, and acquires MCCH information according to the OFDM symbols which are mapped to the physical layer by the MCCH; and the RN acquires multicast traffic channel (MTCH) scheduling information according to the MCCH information, receives and synchronously forwards OFDM symbols which are mapped to the physical layer by an MTCH according to the MTCH scheduling information, and acquires MTCH information according to the OFDM symbols which are mapped to the physical layer by the MTCH.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a method, device and system for forwarding and sending MBMS service data. Background technique [0002] In future mobile communication systems, such as B3G (Beyond Third Generation) or LTE-A, the system will provide higher peak data rates and cell throughput, and also require greater bandwidth. At present, there are very few unallocated bandwidths below 2GHz, and part or all of the bandwidth required by the B3G system can only be found in higher frequency bands, such as above 3GHz. The higher the frequency band, the faster the attenuation of radio wave propagation and the shorter the transmission distance. Therefore, in the same coverage area, to ensure continuous coverage, more base stations are required. Since base stations usually have a higher cost, the cost of network deployment will increase. In order to solve network deployment costs and coverage issues, manufacturers ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/06H04W72/12H04L27/26
CPCH04L5/0092H04L5/00H04W76/002H04L5/0032H04W4/06H04W48/08H04L5/0007H04W72/005H04L27/00H04B7/00H04W72/30
Inventor 焦斌丁昱潘学明鲍炜
Owner DATANG MOBILE COMM EQUIP CO LTD
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