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Data transmission method and device

A data transmission method and data technology, applied in the field of communication, can solve problems such as poor communication security, and achieve the effect of improving security and reducing the risk of attack

Active Publication Date: 2022-07-29
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This creates malicious threats to terminal equipment and network equipment, resulting in poor communication security

Method used

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  • Data transmission method and device
  • Data transmission method and device
  • Data transmission method and device

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Embodiment Construction

[0044] The data transmission method and device provided in the embodiments of the present application can be applied to a communication system using the Packet Data Convergence Protocol (PDCP), and the communication system can perform wireless communication or wired communication. For example, the communication system may be a long term evolution (long term evolution, LTE) communication system and its subsequent evolution communication system, a future 5G communication system and other communication systems.

[0045] Exemplary, figure 1 This is an architecture diagram of a communication system to which the embodiments of the present application are applied. like figure 1 As shown, the communication system may include a terminal device 100 , a network device 200 and a core network device 300 . The terminal device 100 and the network device 200 can perform uplink and downlink communication through an air interface. The terminal device 100 may perform uplink and downlink commu...

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Abstract

Embodiments of the present application provide a data transmission method and device. The data transmission method includes: generating a PDCP data packet by performing integrity protection on the data to be sent; wherein, the PDCP data packet includes identification information and integrity protection information, and the identification information is at least used to indicate the PDCP data packet The data carried in the PDCP data packet is integrity protected, and the integrity protection information is used to perform integrity check on the data carried in the PDCP data packet; and the PDCP data packet is sent. The data transmission method provided by the embodiment of the present application improves the security of data transmission by performing integrity protection on the data carried in the PDCP data packet and indicating through identification information.

Description

technical field [0001] The embodiments of the present application relate to the field of communication technologies, and in particular, to a data transmission method and device. Background technique [0002] In a long term evolution (long term evolution, LTE) communication network, user plane data transmitted over an air interface between a terminal device and a network device only supports confidentiality protection. [0003] For uplink data transmission, the terminal device encrypts the user plane data with an encryption key and an encryption algorithm, and sends the encrypted data to the network device. Correspondingly, the network device uses the same key to decrypt the ciphertext, thereby obtaining user plane data. For the transmission of downlink data, the network device encrypts the user plane data with an encryption key and an encryption algorithm, and sends the encrypted data to the terminal device. Correspondingly, the terminal device uses the same key to decrypt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/40
CPCH04L63/123H04W12/106H04W12/61H04W12/033H04W92/10H04W12/37H04W12/108H04W12/69H04W12/041H04W80/02
Inventor 张博吴荣谭帅帅
Owner HUAWEI TECH CO LTD
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