公开(公告)号：US20230188976A1

公开(公告)日：2023-06-15

申请号：US18166140

申请日：2023-02-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Longhua GUO ,  He LI ,  Yizhuang WU ,  Rong WU

IPC: H04W12/033 ,  H04W12/106 ,  H04W80/02

CPC classification number: H04W12/033 ,  H04W12/106 ,  H04W80/02

Abstract: Embodiments of this application provide a communication method and an apparatus, to ensure a multicast service data packet transmission security requirement. An access device may determine a user plane security active state of a multicast DRB in a PDU session, and indicate the user plane security active state of the multicast DRB to a terminal, where the user plane security active state includes whether integrity protection is activated and/or whether confidentiality protection is activated. In addition, the access device configures a multicast PDCP layer entity based on the user plane security active state of the DRB for transmitting multicast service data. The access device may further determine a user plane security active state of a unicast DRB, indicate the user plane security active state to the terminal, and modify a unicast PDCP layer entity.

公开(公告)号：US20220303763A1

公开(公告)日：2022-09-22

申请号：US17837476

申请日：2022-06-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Longhua GUO ,  He LI ,  Rong WU

IPC: H04W12/03

Abstract: This application provides a communication method, apparatus, and system. The method includes: After a second node sends first indication information to a first node by using a message that is not security protected, the first node may request an IAB donor node to verify whether the first indication information is trustworthy, so that the first node performs a subsequent operation based on a verification result of the IAB donor node. This can eliminate a security risk in a communication process, and help improve communication quality.

公开(公告)号：US20240373323A1

公开(公告)日：2024-11-07

申请号：US18773740

申请日：2024-07-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Longhua GUO ,  Rong WU

IPC: H04W48/02 ,  H04W12/06 ,  H04W76/40

Abstract: Embodiments of this application provide service verification methods, communication apparatuses, and communication systems. In an implementation, a method includes receiving identification information of a service from a terminal device, sending a request to a network element, where the request includes identification information of the terminal device and the identification information of the service, and the request is used to request to verify whether to allow the terminal device to use the service, and receiving a verification result from the network element.

公开(公告)号：US20240073762A1

公开(公告)日：2024-02-29

申请号：US18505495

申请日：2023-11-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jing LIU ,  Yuanping ZHU ,  Longhua GUO ,  Li HU

IPC: H04W36/08 ,  H04W12/0433

CPC classification number: H04W36/08 ,  H04W12/0433

Abstract: This application provides a communication method, apparatus, and system. The method includes: A first node communicates with a first donor node by using a first key, where the first key includes a key used for communication over an air interface and/or a key 1 used for communication over an F1 interface. After the first node receives first information from the first donor node, the first node maintains the first key and a second key in response to the first information, where the second key includes a key used for communication over an air interface between the first node and a second donor node and/or a key 2 used for communication over the F1 interface.

公开(公告)号：US20230319554A1

公开(公告)日：2023-10-05

申请号：US18311998

申请日：2023-05-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Longhua GUO ,  Yuanping ZHU ,  Li HU ,  Rong WU

IPC: H04W12/041 ,  H04W12/069

CPC classification number: H04W12/041 ,  H04W12/069

Abstract: A key generation method and an apparatus are provided. One example key generation method includes the following steps: determining, by a communication apparatus, that a master base station or a secondary base station serves as an integrated access and backhaul (IAB) donor, wherein the master base station and the secondary base station are connected to an IAB node; and performing at least one of the following when the master base station serves as the IAB donor, generating, by the communication apparatus, an IAB key KIAB based on a master base station key; or when the secondary base station serves as the IAB donor, generating, by the communication apparatus, the IAB key KIAB based on a secondary base station key.

公开(公告)号：US20230077391A1

公开(公告)日：2023-03-16

申请号：US17990963

申请日：2022-11-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Longhua GUO ,  He LI ,  Rong WU

IPC: H04L9/40

Abstract: Embodiments of this disclosure provide a communication protection method and apparatus, a device, and a computer-readable medium. The communication protection method includes: A terminal device sends an application session establishment request message to a first application function network element (AF), where the application session establishment request message includes an AKMA key identifier; and the terminal device receives an application session establishment response message from the first AF, where the application session establishment response message includes a security activation indication. The security activation indication indicates whether to activate security protection on communication between the terminal device and a second AF, the security protection includes confidentiality protection and/or integrity protection performed based on a security key, and the security key is generated based on an AKMA key corresponding to the AKMA key identifier.

公开(公告)号：US20220174497A1

公开(公告)日：2022-06-02

申请号：US17675784

申请日：2022-02-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Longhua GUO ,  He LI

IPC: H04W12/72 ,  H04W8/18

Abstract: Embodiments of this application provide a communication method and apparatus, and relate to the field of communications technologies, to lower a security risk posed by removal of a SIM card from a communications device, and improve security of a communications network. The communication method includes: determining, by the communications device, that the SIM card is removed; sending, by the communications device, alarm information to a network device, wherein the alarm information indicates that the SIM card in the communications device is removed, and security protection is performed on the alarm information based on security context stored in the communications device; and then deleting, by the communications device, the security context. This application is applicable to a procedure in which a communications device accesses a network.

公开(公告)号：US20220109994A1

公开(公告)日：2022-04-07

申请号：US17551562

申请日：2021-12-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Longhua GUO ,  Li HU ,  Yinghao JIN ,  Wenjun JIN

IPC: H04W12/122 ,  H04W48/16 ,  H04W12/106

Abstract: This application relates to the field of communications technologies, and discloses a method and apparatus. The method includes: A real base station receives a first uplink NAS message and an identifier of a first device. The real base station obtains a first hash value of first system information of a cell corresponding to the identifier of the first device. The real base station sends an N2 message to a core network device, where the N2 message includes the first uplink NAS message and the first hash value of the first system information. The core network device receives the N2 message from the real base station, and sends an integrity protected first downlink NAS message to a terminal, where the first downlink NAS message is forwarded by the real base station to the terminal, and the first downlink NAS message includes the first hash value of the first system information.