公开(公告)号：US20220311625A1

公开(公告)日：2022-09-29

申请号：US17841369

申请日：2022-06-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kai PAN ,  Min LI ,  Jing CHEN

IPC: H04L9/32 ,  H04L9/08

Abstract: An example terminal device includes at least one processor and at least one memory coupled to the at least one processor and storing programming instructions for execution by the at least one processor to send a certificate application parameter to an interface adaptation function entity; and receive a certificate from the interface adaptation function entity, wherein the certificate is configured by a target certificate management function entity for the terminal device.

公开(公告)号：US20200252795A1

公开(公告)日：2020-08-06

申请号：US16856613

申请日：2020-04-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kai PAN ,  Jing CHEN

IPC: H04W12/04 ,  H04W8/02 ,  H04W4/70 ,  H04W36/00 ,  H04L9/08 ,  H04W12/10

Abstract: A method includes receiving, by a mobility management entity (MME), a redirection request message from an access and mobility management function (AMF) node, where the redirection request message includes key-related information. The method also includes generating, by the MME, an encryption key and an integrity protection key based on the key-related information. The redirection request message is used to request to hand over a voice service from a packet switched (PS) domain to a circuit switched (CS) domain.

公开(公告)号：US20230239688A1

公开(公告)日：2023-07-27

申请号：US18150962

申请日：2023-01-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kai PAN ,  Jing CHEN

IPC: H04W12/041 ,  H04W4/70 ,  H04L9/08 ,  H04W8/02 ,  H04W36/00 ,  H04W12/106 ,  H04W12/0433

CPC classification number: H04W12/041 ,  H04W4/70 ,  H04L9/0869 ,  H04W8/02 ,  H04W36/0022 ,  H04W12/106 ,  H04W12/0433 ,  H04L2209/80

Abstract: A key generation method includes determining, by an access and mobility management function node, key-related information. The method also includes sending, by the access and mobility management function node, a redirection request message to a mobility management entity. The redirection request message includes the key-related information, and the redirection request message is used to request to hand over a voice service from a packet switched (PS) domain to a circuit switched (CS) domain. The method further includes receiving, by the mobility management entity, the redirection request message. The method additionally includes generating, by the mobility management entity, an encryption key and an integrity protection key for the voice service based on the key-related information.

公开(公告)号：US20200275268A1

公开(公告)日：2020-08-27

申请号：US16870708

申请日：2020-05-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kai PAN ,  Jing CHEN

IPC: H04W12/06 ,  H04W12/04 ,  H04L29/06 ,  H04L9/32

Abstract: A communication method and a communications apparatus in which the method includes: a terminal device receiving a first authentication request from a security function network element, and obtaining authentication reference information based on the first authentication request, where the authentication reference information is a response value, a resynchronization token, or a cause indication value. The terminal device sends an authentication response message to the security function network element, where the authentication response message includes a first information element used to carry the response value, a second information element used to carry the resynchronization token, and a third information element used to carry the cause indication value, and the authentication reference information is carried in an information element corresponding to the authentication reference information.