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Cell switching method and device

A cell handover and source cell technology, which is applied to communication between multiple stations, electrical components, messages/mailboxes/announcements, etc. It can solve the problem of reducing UE service reception quality, destroying UE MBMS service data continuity, and UE establishing PTP chain. problems such as the target cell of the road, to avoid pauses, ensure continuity, and improve reception quality.

Inactive Publication Date: 2009-04-01
TD TECH COMM TECH LTD
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Problems solved by technology

[0004] As can be seen from the above description, in the existing cell handover method, the UE bearing the MBMS service data in the PTP mode needs to be handed over to the target cell that does not support the PTP mode, or the target cell that cannot establish a PTP link for the UE, and then receive the MBMS service again. In service, the UE must first release the PTP link in the source cell, and then enter the target cell through cell reselection, and then re-establish the MBMS bearer of the target cell in order to receive MBMS service data. This method will destroy the UE Continuity when receiving MBMS service data, reducing service reception quality of UE

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Embodiment Construction

[0023] In order to make the purpose, technical solutions and beneficial effects of the present invention more clear, the present invention will be further described in detail below in conjunction with the embodiments and accompanying drawings.

[0024] In the embodiment of the present invention, when the UE receives MBMS service data in the source cell through PTP mode, if the RNC determines that the UE needs to be handed over to the target cell supporting the PTM mode, and determines that the target cell does not support the PTP mode, or cannot The cell establishes a PTP link for the UE, and the RNC notifies the UE of the basic information of the target cell and the MCCH channel parameters of the target cell; the UE obtains the MBMS control information of the target cell from the MCCH channel of the target cell, and establishes a link according to the obtained MBMS control information. The MBMS service bearer on the target cell is switched to the target cell to receive MBMS se...

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Abstract

The invention discloses a cell switching method comprising: wireless network controller RNC notifies basic information of target cell and MBMS point-to-multipoint control channel MCCH channel related parameter of user equipment UE; the UE acquires target cell MBMS control information from target cell MCCH channel, establishes MBMS service loading of target cell according to acquired MBMS control information; the UE switches to target cell to receives MBMS service data. The invention simultaneously discloses a UE and RNC. The inventive technical scheme can guarantee continuity for receiving MBMS service data in cell switching, promote MBMS service data receiving quality of UE.

Description

technical field [0001] The present invention relates to multimedia broadcast / multicast (MBMS) technology, in particular to a cell switching method and system, a user equipment (UE) and a radio network controller (RNC). Background technique [0002] Multimedia broadcast / multicast (MBMS) service is an important application in the third generation mobile communication technology, which can provide users with rich and colorful program content. There are two transmission modes of MBMS services: one is point-to-multipoint (P-T-M) service transmission mode, and the other is point-to-point (P-T-P) service transmission mode. [0003] In the MBMS service, when the user equipment (UE) receives the MBMS service in the PTP mode carried by the current cell, if the RNC determines that the UE needs to be handed over to another cell, and the target cell to be handed over to does not support the PTP bearer mode, or If the PTP link cannot be established for the UE in the target cell, for exam...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/12H04W40/36H04B7/26
Inventor 章小平郭伟丁欣
Owner TD TECH COMM TECH LTD
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