Method, user equipment and system for realizing service continuity of multimedia broadcast and multicast service

摘要

The disclosure discloses a method, User Equipment (UE) and a system for realizing service continuity of a Multimedia Broadcast and Multicast Service (MBMS). The method comprises that: when a UE that is receiving or is interested in receiving the MBMS service moves, if the UE is in an idle mode, the UE selects a target cell with a same frequency as the MBMS service to perform a cell reselection or the UE uses a frequency of the MBMS as a highest-priority frequency to perform a cell reselection; if the UE is in a connected mode, a network side selects a target cell with a same frequency as the MBMS service to perform a handover according to an MBMS receiving state reported by the UE. With the disclosure, the MBMS service experience of users can be improved.

主权项

1. A method for realizing service continuity of a Multimedia Broadcast and Multicast Service (MBMS), comprising: when a UE that is receiving or is interested in receiving the MBMS service moves,
if the UE is in RRC-Idle mode, the UE selecting a target cell with a same frequency as the MBMS service to perform a cell reselection or the UE using a frequency of the MBMS as a highest-priority frequency to perform a cell reselection; and if the UE is in RRC-Connected mode, a network side selecting a target cell with a same frequency as the MBMS service to perform a handover according to an MBMS receiving state reported by the UE, wherein when the UE determines that:
the target cell is a reserved cell in a Multicast Broadcast Single Frequency Network (MBSFN) area, or,the target cell is a non-reserved cell without the MBMS service in the MBSFN area and that the MBSFN area to which the target cell belongs is different from an MBSFN area to which the source cell belongs, or,the target cell belongs to a non-MBSFN area and that the target cell and the source cell belong to one MBMS service area, the UE requesting an establishment of a PTP connection and continuing receiving the MBMS service through the PTP mode.