Communication method and related product

A communication method and technology for describing information, applied in the field of communication, to achieve the effect of reducing the risk of key leakage, resisting the risk of key leakage, and improving communication security
CN111447675AActive Publication Date: 2020-07-24HUAWEI TECH CO LTD
2 Cites 11 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2020-07-24

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The embodiment of the invention discloses a communication method and a related product. The communication method comprises the following steps: receiving, by the AMF of a first network, a registrationrequest for requesting registration of UE to the first network, the registration request being generated in a registration process in which the UE accesses the first network through a second network,the first network being a PLMN and the second network being an NPN, or the first network being an NPN and the second network being a PLMN; and after the AMF of the first network obtains a corresponding AMF key Kamf through a process of registering the UE to the first network, deducing a first key Kn3iwf based on the Kamf and the key input parameter T1, wherein the first secret key Kn3iwf is different from the second secret key Kn3iwf, and the second secret key Kn3iwf is generated in the process that the UE accesses the second network through the non-3GPP access network of the second network.According to the scheme, the Kn3iwf key isolation in a cross-network access scene can be improved, and the communication security is further improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] This application relates to the technical field of communication, in particular to a communication method and related products. Background technique

[0002] The 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project) proposes a group communication method in the 5G LAN research project: using a non-public network (NPN, Non-Public Network) to form a network. The public mobile communication network (PLMN, Public Land Mobile Network) is basically the same, and has its own independent access network part (including 3gpp access and non-3gpp access) and core network part. The NPN User Equipment (UE, User Equipment) also has the same key system as the PLMN UE.

[0003] In order to ensure the network continuity of the UE, the UE can access the NPN through the NPN's own access network, of course, it can also access the NPN through the PLMN, and vice versa. For example, if the UE accesses the NPN through the NPN non-3gpp access network an...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More