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Communication method and device

A communication method and network element technology, applied in the communication field, can solve the problem of not supporting MBS service termination and other problems

Active Publication Date: 2022-05-13
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present application provides a communication method and device, which can solve the problem of MBS service termination caused by the fact that the network element of the target access network does not support MBS in the handover scenario, and can improve the reliability of MBS

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Embodiment Construction

[0109] The technical solution in this application will be described below with reference to the accompanying drawings.

[0110] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as vehicle-to-everything (V2X) communication systems, device-to-devie (D2D) communication systems, Internet of Vehicles communication systems, fourth-generation ( 4th generation (4G) mobile communication systems, such as long term evolution (long term evolution, LTE) system, worldwide interoperability for microwave access (WiMAX) system, fifth generation (5th generation, 5G) mobile communication system, Such as new air interface (new radio, NR) system, and future communication systems, such as the sixth generation (6th generation, 6G) mobile communication system, etc.

[0111]The present application presents various aspects, embodiments or features in terms of a system that can include a number of devices, components, modules and...

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Abstract

This application provides a communication method and device, which can solve the problem of MBS service termination caused by the fact that the network element of the target access network does not support MBS in the handover scenario, can improve the reliability of MBS, and can be applied to 4G systems and 5G systems , V2X system and other communication systems. The method includes: the network element of the source access network can send the information of the unicast QoS flow of the PDU session corresponding to the multicast QoS flow of the MBS to the network element of the target access network during the switching process, and the target access network Then, the session management network element instructs the user plane network element connected to the target access network network element to use the resource of the unicast QoS flow corresponding to the multicast QoS flow of the MBS, via the target access network The element sends the data of the MBS to the terminal device.

Description

technical field [0001] The present application relates to the communication field, and in particular to a communication method and device. Background technique [0002] Although the fourth generation (4th generation, 4G) communication system supports multicast broadcast service (multicast broadcast service, MBS) in terms of protocol, it has not been actually deployed due to the need to reserve dedicated resources for MBS, while the fifth generation (5th generation, 5G ) communication system does not support multicast broadcast service (multicast broadcast service, MBS). To this end, the 5G XCast organization proposed a point to multipoint (point to multipoint, PTM, also known as air interface multicast) solution to support MBS in the 5G system. The solution includes: the base station maps the MBS data packet to the wireless resource of the unicast (quality of service, QoS) flow, and sends the MBS data to the terminal through the wireless resource of the unicast QoS flow. I...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/00H04W36/30
CPCH04W36/0007H04W36/0072H04W36/26
Inventor 宗在峰朱奋勤
Owner HUAWEI TECH CO LTD