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Receiving method of multimedia broadcast multicast service

A technology for multimedia broadcast and multicast services, applied in the field of receiving multimedia broadcast and multicast services, which can solve the problems of long interruption time of MBMS services and achieve the effect of ensuring continuity and reducing interruption time

Active Publication Date: 2021-05-28
CHENGDU TD TECH LTD
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] It can be seen that, in the existing system using the MBSFN mode, the UE needs to wait until it has successfully received all the SIBs in the process of cell reselection or handover before resuming receiving the MBMS service. This will cause a long interruption of the MBMS service question

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  • Receiving method of multimedia broadcast multicast service

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Embodiment Construction

[0022] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] The core idea of ​​the present invention is: utilize the characteristics that each cell in an MBSFN area broadcasts the same MBSFN signal in the same MBSFN sub-frame, in the process of cell reselection or handover, it is not necessary to wait until after staying in the target cell according to the information obtained from each MCCH According to the MCCH configuration information and MBMS service configuration information of the source cell, the corresponding MCCH and the corresponding MBMS service can be received directly in the target cell. In this way, the UE can effectively reduce the time when the UE performs cell reselection or handover. MBMS service interruption time.

[0024] figure 1 It is a schematic flow diagram of the ...

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Abstract

The present application discloses a method for receiving a multimedia broadcast multicast service, including: when a user equipment UE needs to perform cell reselection or handover, judging whether the target cell and the current cell belong to the same MBSFN area; when the target cell and the current cell belong to the same In the MBSFN area, the UE saves the relevant configuration information of the MBSFN area that can be used in the target cell; performs the corresponding cell reselection process or handover process, wherein the UE is configured in the target cell according to the MBSFN-related area configuration information Internally receive multicast control channel MCCH and multimedia broadcast multicast service MBMS. The invention can effectively reduce the MBMS service interruption time when the UE performs cell reselection or handover in the MBSFN mode.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a method for receiving Multimedia Broadcast Multicast Service (MBMS). Background technique [0002] Currently, there are two types of MBMS service bearers in the 3GPP protocol: unicast bearer and multicast bearer. The unicast bearer is a point-to-point (PTP) bearer established between the network and a specific user equipment (UE). Under the unicast bearer, the MBMS service is sent to a specific UE. The multicast bearer is a point-to-multipoint (PTM) bearer. Under the multicast bearer, the MBMS service is broadcast in the cell where the multicast bearer is established. [0003] There are two transmission modes for MBMS services carried by multicast: Multimedia Broadcast Multicast Single Frequency Network (MBSFN) mode and Single Cell Point-to-Multipoint (SC-PTM) mode. [0004] In the MBSFN mode, the MCE performs unified scheduling for all cells in an MBSFN area, and these cells...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/06H04W36/00H04W36/08H04W36/18
CPCH04W4/06H04W36/0061H04W36/08H04W36/18
Inventor 魏立梅袁乃华范晨曾奇志朱玉梅周志宏
Owner CHENGDU TD TECH LTD