Access control mechanism

US11160006B2 · kind B2 · utility

Assignee

• Apple Inc. · US

Inventors

• Robert Zaus · Munich, DE
• Marta Martinez Tarradell · Munich, DE
• Ana Lucia Pinheiro · Emmaus, US
• Sudeep Palat · Cheltenham, GB
• Chen Ho Chin · Deerlijk, BE
• Richard Charles Burbidge · Hook, GB
• Alexandre Saso Stojanovski · Paris, FR

Key dates

• Filing date: May 3, 2018
• Grant date: Oct 26, 2021
• Expiry date: May 3, 2038

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04W84/042
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

A user equipment (UE) can include processing circuitry configured to decode system information including access barring parameters for one or more access categories for accessing a cell of a next generation Node-B (gNB). A network access attempt is detected by a control plane layer of the UE that is higher than a Radio Resource Control (RRC) layer. The processing circuitry map s, using a Non-Access Stratum (NAS) layer of the control plane, the network access attempt to at least one access category of a plurality of available access categories based on mapping rules. The processing circuitry performs an access barring check procedure for the mapped at least one access category based on the access barring parameters. Upon determining that access to the cell is not barred, a NAS message is encoded for transmission to an Access and Mobility Management Function (AMF), e.g. an Attach Request message to perform an attach procedure.