Managing multicast communications for user equipment operating in inactive state

By sending a multicast configuration to a UE operating in the RRC_INACTIVE state in the radio access network, the problem of difficulty in enabling MBS in the prior art is solved, and support for important services and power efficiency is improved.

CN119698922APending Publication Date: 2025-03-25GOOGLE LLC
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Patent Information

Application Number
CN202380059453.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2022-07-12
Filing Date
2023-07-12
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

The prior art is difficult to enable multicast and/or broadcast services (MBS) in a radio access network for user equipment (UEs) operating in the RRC_INACTIVE state.

Method used

By implementing a method in a radio access network (RAN), a multicast configuration is sent to a UE operating in a connected state to receive MBS data in an inactive or connected state. The method includes sending a first multicast configuration to the first UE and sending a second multicast configuration to the second UE, and sending MBS data to the corresponding UE according to these configurations.

Benefits of technology

It realizes the activation of multicast services for UEs operating in the RRC_INACTIVE state in the radio access network, improves the support capability for important services in the cells of a large number of UEs, and improves power efficiency.

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Abstract

A radio access network (RAN) participating in a multicast and broadcast service (MBS) session may implement a method for managing MBS communications. The method comprises: sending (702) a first multicast configuration to a first UE operating in a connected state for receiving MBS data in an inactive state; sending (703) a second multicast configuration to a second UE operating in the connected state for receiving MBS data in the connected state; and transmitting (708) MBS data to the first UE operating in the inactive state according to the first multicast configuration and transmitting MBS data to the second UE operating in the connected state according to the second multicast configuration.
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