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A communication method and device

A communication method and message technology, applied in the field of communication, can solve problems such as long time delay

Active Publication Date: 2021-06-22
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In the prior art, for the Internet of Vehicles business, the following method is usually used to multicast data. The terminal device sends a multicast message to the base station, and the base station uploads the multicast message to the core network, and then the core network triggers the base station to perform multicast. Larger extension

Method used

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Embodiment Construction

[0061] Embodiments of the present application provide a communication method and device for reducing the transmission delay of multicast messages.

[0062] Hereinafter, some terms used in this application are explained to facilitate the understanding of those skilled in the art.

[0063]1) The communication system may be various radio access technology (radio access technology, RAT) systems, such as code division multiple access (code division multiple access, CDMA), time division multiple access (time division multiple access, TDMA), frequency division multiple access Multiple access (frequency division multiple access, FDMA), orthogonal frequency-division multiple access (orthogonal frequency-division multiple access, OFDMA), single carrier frequency-division multiple access (single carrier FDMA, SC-FDMA) and other systems, etc. The term "system" can be used interchangeably with "network". The CDMA system may implement radio technologies such as universal terrestrial radio ...

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Abstract

The present application discloses a communication method and device, wherein the method includes: a first wireless access network device receiving a first message from a terminal device through a radio bearer, or the first wireless access network device receiving a first message from a terminal device through a user plane tunnel receiving a first message from a second radio access network device; wherein, the radio bearer is a bearer between the first radio access network device and the terminal device, and the user plane tunnel is a bearer between the first radio access network device and the terminal device A tunnel between the second wireless access network device; the first wireless access network device multicasts the first message through a first air interface, and the first air interface is the first wireless access network device and terminals within its jurisdiction Air interface for communication between devices. By adopting the communication method and device of the present application, the transmission time delay of multicast messages can be reduced.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular to a communication method and device. Background technique [0002] In the prior art, for the Internet of Vehicles business, the following method is usually used to multicast data. The terminal device sends a multicast message to the base station, and the base station uploads the multicast message to the core network, and then the core network triggers the base station to perform multicast. The extension is larger. Contents of the invention [0003] The present application provides a communication method and device for reducing the transmission delay of multicast messages. [0004] In a first aspect, the present application provides a communication method, the method includes: a first wireless access network device receives a first message from a terminal device through a radio bearer, and then multicasts the first message through a first air interface, and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/06H04W76/11H04W76/12H04W76/40
CPCH04W4/06H04W76/11H04W76/12H04W76/40H04L12/189H04L12/1877H04W92/20H04W28/18
Inventor 罗海燕王君戴明增吴义镇
Owner HUAWEI TECH CO LTD
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