CN100531436C - Method for receiving multimedia broadcast multicast service - Google Patents

Abstract

The present invention provides receiving multimedia broadcasting multi-broadcast service MBMS method. It contains user UE current located cell not supporting with current cell merged neighbor cell provided MBMS service, and neighbor cell provided MBMS service wireless bearing configured message transmitting to UE, to make UE current cell capable of learning neighbor cell MBMS service wireless bearing configuration information, in this way UE in cell interblock trans- cell moving, according to said information directly receiving target cell PTM loaded MBMS service. Said invention reduces MBMS service interruption time, raising user's MBMS service reception quality.

Description

The method of receiving multimedia broadcast multicast service

Technical field

The present invention relates to multimedia broadcast multi-broadcasting business (MBMS, Multimedia BroadcastMulticast Service) field, relate in particular to the method that receives the MBMS business when user (UE) moves in cell set span sub-district.

Background technology

MBMS is meant the point-to-multipoint service that sends data from a data source to a plurality of users, it can not only realize the classes of messages multicast and the broadcasting of plain text low rate, and can realize the multimedia service multicast and the broadcasting of two-forty, significantly reduce the transfer of data in the network, effectively utilize Internet resources, complied with the trend of following mobile data development.

Send MBMS when professional in the sub-district, the MBMS business can be carried on point-to-point, and (PTP Point-to-Point) on the channel, also can be carried on and a little arrive multiple spot (PTM is Point-to-Multipoint) on the channel.When the MBMS business when eating dishes without rice or wine to adopt the PTM carrying, UE is according to MBMS current area PTM radio bearer information (the MBMS CURRENT CELLPTM RB INFORMATION) message of the chain of command of eating dishes without rice or wine, receive the MBMS business, wherein, comprise the MBMS business that current area provides in the MBMS CURRENTCELL PTM RB INFORMATION message, and the radio bearer configuration information of each the MBMS business that provides, as MBMS Traffic Channel (MTCH) configuration information.

For improving the quality of reception of MBMS business, when the MBMS business when eating dishes without rice or wine to adopt the PTM carrying, support belongs to the pooling function of same MBMS business of the neighbor cell of same cell set, when the MBMS activation of service, UE is according to the signal quality of indicating cell in MBMS neighbor cell PTM radio bearer information (the NEIGHBOURING CELL PTM RB INFORMATION) message, determine to merge with which sub-district, and according to the dynamic sub-district that merges of adjusting of signal quality, UE receives the same MBMS business from these sub-districts PTM carrying simultaneously, realizes merging in the UE side.Wherein, each sub-district in the same cell set belongs to same radio network controller (RNC), uses identical radio bearer configuration when identical MBMS business each sub-district in cell set sends.At the neighbor cell that each is supported and current area merges, provided the MBMS business that these neighbor cells provide in the MBMSNEIGHBOURING CELL PTM RB INFORMATION message, because the MBMS same MBMS business professional and that current area provides that belonging to the neighbor cell of same cell set provides has the same radio bearer and disposes, so need not in MBMS NEIGHBOURING CELL PTM RB INFORMATION message, provide the radio bearer configuration information of the MBMS business that neighbor cell provides.

When UE moves in cell set interior span sub-district, because UE supports the pooling function of the same MBMS business of different districts PTM carrying in the cell set, therefore, UE is when receiving the MBMS business, receive the MBMS business of current area earlier, then receive the MBMS business of current area and Target cell simultaneously, and then the MBMS business of receiving target sub-district, can not cause UE striding the interruption that receives the MBMS business when move the sub-district like this.For ease of describing, the sub-district that will enter when here UE being moved is called Target cell.

When UE moves in cell set span sub-district, because UE does not support the pooling function of the same MBMS business of different districts PTM carrying between cell set, therefore, UE is when receiving the MBMS business, receive the MBMS business of current area earlier, after leaving current area in the moving process and entering into Target cell, earlier read system message type 5 obtains Target cell MBMS control channel (MCCH) configuration informations on the Broadcast Control Channel, then read MCCH according to the MCCH configuration information, the MBMS business that obtains current reception is at the MTCH of Target cell configuration information, and last UE is according to the MBMS business of MTCH configuration information receiving target sub-district to the MTCH channel.

As seen, when UE moves in cell set span sub-district, after leaving current area and entering into Target cell, must through some steps could the receiving targets sub-district the MBMS business, cause UE to receive the interruption of MBMS business, thereby influence user's the MBMS business quality of reception.

Summary of the invention

In view of this, the present invention proposes a kind of method of the MBMS of reception business, the MBMS service outage duration when minimizing UE moves in cell set span sub-district improves user's the professional quality of reception of MBMS.

For achieving the above object, technical scheme provided by the invention is as follows:

The MBMS business that the neighbor cell that sub-district, the current place of user UE will not supported to merge with current area provides, and the radio bearer configuration information of the MBMS business that provides of neighbor cell send to UE by MBMS neighbor cell P-T-M wireless loading informational message or newly-increased message, when UE moves in cell set span sub-district, MBMS business according to this message pick-up Target cell, when described current area and Target cell belonged to different radio network controller (RNC), this method further comprised:

Between two RNC, increase MBMS radio bearer update MBMS Radio Bearer Update message, know that by MBMS Radio Bearer Update message the radio bearer configuration information of cell MBMS business changes between the RNC;

The MBMS business that the neighbor cell that sub-district, the current place of UE will be supported and current area merges provides sends to UE, when UE moves in cell set interior span sub-district, the MBMS business of the radio bearer configuration information receiving target sub-district of the same MBMS business that MBMS business that UE provides according to neighbor cell and current area provide.

This shows, the MBMS business that the present invention provides by the neighbor cell that will not support in the UE current area to merge with current area, and the radio bearer configuration information of these MBMS business sends to UE, make UE just can know the radio bearer configuration information of neighbor cell MBMS business in current area, like this, when UE moves in cell set span sub-district, the direct MBMS business of receiving target sub-district PTM carrying just, and need not be by reading Broadcast Control Channel and MCCH channel, the MBMS business of receiving target sub-district again, the MBMS service outage duration when thereby minimizing UE moves in cell set span sub-district improves user's the professional quality of reception of MBMS.

Description of drawings

Fig. 1 receives the flow chart of MBMS business when moving in cell set span sub-district for user among the present invention.

Embodiment

For making purpose of the present invention, technical scheme and advantage clearer, with reference to the accompanying drawings, the present invention is described in further detail.

MBMS service outage duration when moving in cell set span sub-district for reducing UE, the present invention is directed to each and do not support the neighbor cell that merges with current area, the MBMS business that the neighbor cell that will not support in sub-district, the current place of UE to merge with current area provides, and the radio bearer configuration information of these MBMS business sends to UE, like this, UE just can be according to the MBMS business of the professional radio bearer configuration information receiving target of the MBMS that receives sub-district PTM carrying.

Wherein, sub-district, the current place of the UE MBMS business that the neighbor cell of not supporting to merge with current area can be provided, and the radio bearer configuration information of the MBMS business that provides of neighbor cell be carried at and send to UE in the message.As: the MBMS business that the neighbor cell that will not support to merge with current area provides, and the radio bearer configuration information of the MBMS business that provides of neighbor cell be carried in the newly-increased message and send to UE.Perhaps, the MBMS business that the neighbor cell of not supporting to merge with current area is provided, and the radio bearer configuration information of the MBMS business that provides of neighbor cell is carried in the MBMSNEIGHBOURING CELL PTM RB INFORMATION message and sends to UE, promptly in MBMS NEIGHBOURING CELL PTM RB INFORMATION message, increase the MBMS business that these neighbor cells provide, and the radio bearer configuration information of the MBMS business that provides of neighbor cell, wherein, the MBMS that provides of the neighbor cell that increases in the MBMS NEIGHBOURING CELL PTM RB INFORMATION message is professional also provides in current area simultaneously.

Referring to Fig. 1, according to above-mentioned setting, when UE moved in cell set span sub-district, the detailed process that receives the MBMS business comprised following step:

Step 101:UE receives that current area issues, and MBMS business that the neighbor cell not supporting to merge with current area provides, and the message of the professional radio bearer configuration information of MBMS that provides of neighbor cell are provided;

Wherein, described message is newly-increased single message or MBMS NEIGHBOURING CELLPTM RB INFORMATION message etc.Not only comprise the MBMS business that the neighbor cell supporting to merge with current area provides in the MBMS NEIGHBOURING CELLPTM RB INFORMATION message of the present invention, also comprised the radio bearer configuration information of professional and these MBMS business of MBMS that the neighbor cell not supporting to merge with current area provides.

The MBMS CURRENT CELL PTM RBINFORMATION message that UE issues according to current area receives the MBMS business of PTM carrying in current area, in the process that receives the MBMS business, if UE need move in cell set span sub-district, then the newly-increased message that issues by current area of UE or MBMS NEIGHBOURING CELL PTM RBINFORMATION message etc. are obtained the radio bearer configuration information of this MBMS business in the neighbor cell that Target cell is not promptly supported to merge with current area.

Step 102:UE is according to the message that receives, the MBMS business of receiving target sub-district.

Because having obtained, UE needs the radio bearer configuration information of the MBMS business of reception at Target cell, therefore, after UE enters into Target cell from current area, directly according to the MBMS business of the PTM carrying of the radio bearer configuration information receiving target sub-district of MBMS business, and need not be by reading Broadcast Control Channel and MCCH channel, the MBMS business of receiving target sub-district again.

If current area belongs to different RNC with Target cell, then between two RNC, increase the MBMS radio bearer and upgrade (MBMS Radio Bearer Update) message, when the radio bearer configuration information of the MBMS business that provides when a sub-district changes, RNC under this sub-district gives another sub-district affiliated RNC by MBMS Radio Bearer Update message informing new radio bearer configuration information, the new professional radio bearer configuration information of MBMS that the RNC of another sub-district will receive sends to the UE of self sub-district, and UE receives the MBMS business according to the professional radio bearer configuration information of new MBMS.

By such scheme as seen, the MBMS service outage duration when method provided by the present invention can reduce UE and moves in cell set span sub-district improves user's the professional quality of reception of MBMS.

The above has carried out further detailed description to purpose of the present invention, technical scheme and beneficial effect; institute is understood that; the above is not in order to restriction the present invention; within the spirit and principles in the present invention all; any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (1)

1, the method of receiving multimedia broadcast multicast service MBMS, it is characterized in that, the MBMS business that the neighbor cell that sub-district, the current place of user UE will not supported to merge with current area provides, and the radio bearer configuration information of the MBMS business that provides of neighbor cell sends to UE by MBMS neighbor cell P-T-M wireless loading informational message or newly-increased message, when UE moves in cell set span sub-district, MBMS business according to this message pick-up Target cell, when described current area and Target cell belonged to different radio network controller (RNC), this method further comprised:

Between two RNC, increase MBMS radio bearer update MBMS Radio Bearer Update message, know that by MBMS Radio Bearer Update message the radio bearer configuration information of cell MBMS business changes between the RNC;

The MBMS business that the neighbor cell that sub-district, the current place of UE will be supported and current area merges provides sends to UE, when UE moves in cell set interior span sub-district, the MBMS business of the radio bearer configuration information receiving target sub-district of the same MBMS business that MBMS business that UE provides according to neighbor cell and current area provide.

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