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A message transmission method and device

A message transmission and message technology, which is applied in transmission systems, digital transmission systems, devices dedicated to receivers, etc., can solve the problems of high cost of access network equipment, etc.

Active Publication Date: 2021-04-20
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since the access network device needs to deduplicate the packet first, and then copy the packet, the overhead of the access network device is relatively large

Method used

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  • A message transmission method and device
  • A message transmission method and device
  • A message transmission method and device

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Embodiment Construction

[0055] In order to make the purpose, technical solution and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings. The specific operation methods in the method embodiments can also be applied to the device embodiments or system embodiments. Wherein, in the description of the present application, unless otherwise specified, "plurality" means two or more.

[0056] like figure 1 Shown is a possible network architecture applicable to this application. The network architecture includes an access network device (in the figure, the access network device is taken as a radio access network (radio access network, RAN) device as an example) and a user plane network element (in the figure, the user plane network element is used as a user plane function ( user equipment function, UPF) network element as an example). Further, the network architecture may also include terminals. Further, the network ...

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Abstract

The present application provides a message transmission method and device. The method includes: the first device supports the first protocol layer, the first device replicates the message at the first protocol layer, the second device supports the second protocol layer, and the second device deduplicates the message at the second protocol layer . When the first access device receives the first message, it converts the serial number of the first protocol layer in the first message into a serial number of the second protocol layer, and then sends a message carrying the second protocol layer to the second device. The sequence number of the second message and the data packet of the first message. For example, when the first access network device receives two messages of the same data packet, it converts the sequence numbers in the two messages respectively, without performing the operation of first deduplicating and then duplicating the messages , so the overhead of the first access network device can be reduced.

Description

technical field [0001] The present application relates to the technical field of mobile communication, and in particular to a message transmission method and device. Background technique [0002] In some scenarios of the fifth generation (5th generation, 5G) communication, such as ultra-Reliable and Low Latency Communications (URLLC) scenarios, it is necessary to transmit packets with high reliability. [0003] In order to achieve high reliability transmission of service flow packets, the sending device copies the packets to be sent at the first protocol layer of the sending device to obtain two packets, and then sends the two packets to the access network equipment. After receiving the two packets, the access network device first performs deduplication processing on the first protocol layer, and then copies the packets on the second protocol layer to obtain two packets and sends the two packets to the receiving device. And the receiving device deduplicates the two receive...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/851H04L12/911H04L12/927H04L47/80
CPCH04W28/04H04W28/10H04L1/0036H04W4/12H04W80/02H04L47/34H04L47/805H04L47/2425H04L47/825
Inventor 李永翠李岩倪慧朱方园
Owner HUAWEI TECH CO LTD