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A kind of handover method and equipment based on mbms service

A technology for base station equipment and services, applied in the field of communications, can solve the problems of inability to accept unicast bearers and the continuity of MBMS services cannot be guaranteed, and achieve the effects of enhancing user experience, avoiding handover failures, and ensuring continuity

Active Publication Date: 2011-12-21
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the MBMS frequency of the target base station is congested, since the target MBMS frequency cannot accept unicast bearer, even if the UE can continue to receive MBMS services in the target cell at this time, the target base station will still refuse the UE to switch to the MBMS frequency
In this way, the UE may be handed over to other frequencies, and the continuity of its MBMS services cannot be guaranteed

Method used

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  • A kind of handover method and equipment based on mbms service
  • A kind of handover method and equipment based on mbms service
  • A kind of handover method and equipment based on mbms service

Examples

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Embodiment 1

[0040] Embodiment 1 of the present invention provides a handover method based on MBMS services, so as to ensure continuity of MBMS services when UE needs to be handed over from a source base station to a target base station, such as figure 2 As shown, the method includes the following steps:

[0041] In step 201, the source base station determines that the priority of the MBMS service of the UE is higher than that of unicast, and the UE cannot be handed over to the target cell on the MBMS frequency where the MBMS service that the UE is interested in is located.

[0042] In the embodiment of the present invention, the source base station determines that the UE cannot be handed over to the target cell on the MBMS frequency where the MBMS service that the UE is interested in includes: when the source base station does not receive the handover confirmation message of the target cell on the MBMS frequency, the source base station The base station determines that the UE cannot be h...

Embodiment 2

[0059] Embodiment 2 of the present invention provides an MBMS service-based handover method, taking the handover failure message returned by the target base station in the first manner as an example.

[0060] UE receives unicast service and MBMS service 1 at the same time in cell 1 under base station 1, and notifies base station 1 that its priority of MBMS service is higher than unicast. Cell 1 is located on frequency f1 and belongs to MBSFN area 1.

[0061] Later, due to UE movement, base station 1 prepares to handover the UE from cell 1 to a cell under base station 2; then base station 1 sends a handover request message to base station 2, in order to ensure the continuity of the MBMS service (to ensure that the UE is still in MBSFN area 1 ), the target cell requested by base station 1 is cell 3 under base station 2 (cell 3 is also located on frequency f1 and belongs to MBSFN area 1).

[0062] After base station 2 receives the handover request message, it finds that cell 3 is...

Embodiment 3

[0067]Embodiment 3 of the present invention provides a handover method based on MBMS services, aiming at the handover confirmation information returned by the target base station in the first way, but not the cell on the target MBMS frequency.

[0068] UE receives unicast service and MBMS service 1 at the same time in cell 1 under base station 1, and notifies base station 1 that its priority of MBMS service is higher than unicast. Cell 1 is located on frequency f1 and belongs to MBSFN area 1.

[0069] Later, due to UE movement, base station 1 prepares to handover the UE from cell 1 to a cell under base station 2; then base station 1 sends a handover request message to base station 2, in order to ensure the continuity of the MBMS service (to ensure that the UE is still in MBSFN area 1 ), the target cell requested by base station 1 is cell 3 under base station 2 (cell 3 is also located on frequency f1 and belongs to MBSFN area 1).

[0070] After base station 2 receives the hando...

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Abstract

The invention discloses a switching method and equipment based on an MBMS (multimedia broadcast multicast service). The method comprises the following steps that: when UE (user equipment) needs to be switched to a target base station from a source base station, if the source base station determines that the priority level of the MBMS of the UE is higher than unicast, and furthermore, the UE cannot be switched to a target cell of an MBMS frequency where the MBMS is in, wherein the UE is interested in the MBMS, the source base station releases the UE and notifies the UE and / or core network equipment that the releasing reason is that the continuity of the MBMS cannot be guaranteed. In the embodiment, when the MBMS frequency of the target base station congests, the continuity of the MBMS can be guaranteed furthest; the switching failure is avoided; and the user experience is enhanced.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a switching method and equipment based on MBMS services. Background technique [0002] (1) MBMS (Multimedia Broadcast Multicast Service, Multimedia Broadcast Multicast Service) and MBSFN (Multimedia Broadcast multicast service Single Frequency Network, Multimedia Broadcast Multicast Service Single Frequency Network). [0003] MBMS is used to provide multimedia broadcast and multicast services for users in wireless cells; in the current LTE (Long Term Evolution, long-term evolution) system, MBMS services are supported on the frequency layer shared by MBMS and unicast services. The cell above is an MBMS / unicast hybrid cell. Among them, the frequency layer that can provide MBMS service is called MBMS frequency layer, and on one MBMS frequency layer, MBMS service uses MBSFN transmission mode. [0004] MBSFN refers to synchronous transmission in multiple cells with th...

Claims

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Application Information

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IPC IPC(8): H04W4/06H04W28/02H04W36/08
Inventor 梁靖刘佳敏汪颖
Owner DATANG MOBILE COMM EQUIP CO LTD
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