METHODS AND DEVICES FOR PROTECTING PRIVACY OF SLICE IDENTITY INFORMATION

    公开(公告)号:US20220264289A1

    公开(公告)日:2022-08-18

    申请号:US17738279

    申请日:2022-05-06

    Abstract: Method, systems and devices for wireless communication. The method includes protecting privacy of a transmitted network slice selection assistance information (NSSAI) between a user equipment and a base station. The method includes receiving a temporary NSSAI (T-NSSAI) from an access and mobility management function (AMF) to the base station, the T-NSSAI comprising at least one temporary single NSSAI (T-S-NSSAI) and storing the T-NSSAI in the base station. The method also includes receiving a radio resource control (RRC) signaling message from the user equipment to the base station, the RRC signaling message comprising a T-S-NSSAI corresponding to an allowed single NSSAI (S-NSSAI); and selecting the AMF based on the T-S-NSSAI.

    ENABLING AUTHENTICATION AND KEY MANAGEMENT FOR APPLICATION SERVICE FOR ROAMING USERS

    公开(公告)号:US20250119736A1

    公开(公告)日:2025-04-10

    申请号:US18982632

    申请日:2024-12-16

    Abstract: This document describes methods, apparatus, and systems that relate to enable Authentication and Key Management for Application service for roaming users. In one example aspect, a method for wireless communication includes receiving, by a network device in a first network from a network device in a second network, a signal indicative of an authentication result related to a wireless device, wherein the signal includes a first key and an indication in case that the first network is different from the second network; and generating, by the network device, a key related information based on the signal.

    ENCRYPTION KEY TRANSFER METHOD AND DEVICE FOR ROAMING USERS IN COMMUNICATION NETWORKS

    公开(公告)号:US20250119732A1

    公开(公告)日:2025-04-10

    申请号:US18984178

    申请日:2024-12-17

    Abstract: This disclosure generally relates to transferring encryption key to a VPLMN in wireless communication. Performed by first network element, the method includes: transmitting a query message to a second network element, to request an identification of a NF entity, wherein the query message comprises an identifier of a wireless device, and wherein the network function is an entity in the VPLMN for storing encryption keys; receiving, from the second network element, a response to the query message, the response comprising the identification of the NF entity; and transmitting, to the NF entity based on the identification of the NF entity, a first message comprising an encryption key, wherein the AF entity is located in the HPLMN or a DN external to the HPLMN and the VPLMN.

    SECURE INFORMATION PUSHING BY SERVICE APPLICATIONS IN COMMUNICATION NETWORKS

    公开(公告)号:US20250039667A1

    公开(公告)日:2025-01-30

    申请号:US18599982

    申请日:2024-03-08

    Abstract: This disclosure generally relates to securely pushing messages from an AF to a User Equipment (UE) in communication networks. Performed by a wireless device in a wireless network, the method includes receiving, from a first network element hosting an Application Function (AF), a message comprising one of: an AKMA (Authentication and Key Management for Applications) key identifier (ID) identifying an AKMA anchor key of the wireless device; or a set of parameters indicative of the AKMA key ID; and storing the AKMA key ID and an AF key associated with the first network element in a security context, wherein the first network element outside of a core network of the wireless network.

    METHOD, DEVICE, AND SYSTEM FOR CORE NETWORK DEVICE RE-ALLOCATION IN WIRELESS NETWORK

    公开(公告)号:US20240007983A1

    公开(公告)日:2024-01-04

    申请号:US18465317

    申请日:2023-09-12

    CPC classification number: H04W60/04 H04W48/20

    Abstract: This disclosure generally relates performing UE authentication and registration with the core network, and in particular, to supporting secure interactions between the UE and the target AMF when the UE is re-allocated to the target AMF. After the UE initiates a first registration request, the initial AMF may retrieve a candidate AMF list and selects a target AMF to serve the UE. The initial AMF generates a 5G-GUTI for the UE, based on the selected target AMF. The initial AMF requests the UE to initiate a second registration request, by using the generated 5G-GUTI. With the solutions provided in this disclosure, the message interactions between the UE and the target AMF are integrity protected and/or ciphered, without the need to upgrade the UE and without using an indirect connection of the core network.

    SESSION REQUEST METHOD AND APPARATUS, TERMINAL, AND STORAGE MEDIUM

    公开(公告)号:US20230422032A1

    公开(公告)日:2023-12-28

    申请号:US18033374

    申请日:2021-09-29

    CPC classification number: H04W12/06 H04W12/0433 H04W12/72

    Abstract: A session request method, a session request apparatus, a terminal, and a storage medium are provided. The session request method includes: generating an authentication server key when a key agreement authentication is passed; determining, according to the authentication server key, a key identifier of an authentication and key management for applications (AKMA) anchor key; when the key identifier is invalid, updating the key identifier according to a mobile subscriber identification number (MSIN); and sending an updated key identifier to an application function, to request a key-based session.

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