Apple Inc.

Hao Duo

Dawei Zhang

Yuqin Chen

Huarui Liang

Shu Guo

Fangli Xu

Lanpeng Chen

Haijing Hu

Xiangying Yang

Lijia Zhang

Qian Sun

Zhibin Wu

Srinivasan Nimmala

Sethuraman Gurumoorthy

Longda Xing

Srirang Ashok Lovlekar

Murtaza A Shikari

Sree Ram Kodali

Sudeep Manithara Vamanan

A user equipment (UE) includes a first subscriber identification module (SIM) and a second SIM. The UE is configured to establish a first cellular network connection based on, at least, the first SIM and a second cellular network connection based on, at least, the second SIM. The UE sends, by the first SIM, a first registration request to the network, wherein the first registration request comprises an identification indicating the multi-SIM device is a type of multi-SIM device, receives, by the first SIM, a first registration accept message indicating the first registration request has been accepted, wherein the first registration accept message comprises a first temporary identification for the first SIM and sends, by the second SIM, an access network message comprising one of the first temporary identification or a further temporary identification based on, at least, the first temporary identification.

Control plane for multi-SIM devices

The present application relates to devices and components including apparatus, systems, and methods for security enhancement with respect to reselection of relay user equipment.

Technologies for relay user equipment reselection

Techniques for identity-based message integrity protection and verification between a user equipment (UE) and a wireless network entity, include use of signatures derived from identity-based keys. To protect against attacks from rogue network entities before activation of a security context with a network entity, the UE verifies integrity of messages by checking a signature using an identity-based public key PKderived by the UE based on (i) an identity value (ID) of the network entity and (ii) a separate public key PKof a private key generator (PKG) server. The network entity generates signatures for messages using an identity-based private key SKobtained from the PKG server, which generates the identity-based private key SKusing (i) the ID value of the network entity and (ii) a private key SKthat is known only by the PKG server and corresponds to the public key PK.

Identity-based message integrity protection and verification for wireless communication

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Beijing, China

Hao Duo