# US 12,604,256 B2 · Unified access control for a cellular network > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,604,256 B2 - Document ID: US12604256B2 - Status: Granted - Kind: B2 - Application number: 17/930,778 - Filed: 2022-09-09 - Published: 2023-03-30 - Granted: 2026-04-14 - Earliest claimed: 2021-09-24 - Assignees: Apple Inc. - Applicants: Apple Inc. - Inventors: Nirlesh Koshta; Vinay Mysore Viswanath; Anikethan Ramakrishna Vijaya Kumar; Pradeep Pangi; Sridhar Prakasam - Web page: https://patentgrep.com/patent/US12604256B2 ## CPC - H04W 48/02: Access restriction performed under specific conditions - H04W 36/00226: {wherein the core network technologies comprise IP multimedia system [IMS], e.g. single radio voice call continuity [SRVCC]} - H04W 60/00: Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration - H04W 76/19: Connection re-establishment - H04W 36/00222: {between different packet switched [PS] network technologies, e.g. transferring data sessions between LTE and WLAN or LTE and 5G} - H04W 48/08: Access restriction or access information delivery, e.g. discovery data delivery (signalling during connection H04W76/00) - H04W 48/16: Discovering, processing access restriction or access information - H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A user equipment (UE) is configured to determine a first access attempt to access a first network service is associated with a first access category, wherein the first access category is associated with a first Unified Access Control (UAC) rule, wherein the first UAC rule has a first priority and determine a second access attempt to access a second network service is associated with a second access category, wherein the second access category is associated with a second UAC rule, wherein the second UAC rule has a second priority. ## Claims ### Claim 1 A processor of a user equipment (UE) configured to perform operations comprising: determining a first access attempt to access a first network service is associated with a first access category, wherein the first access category is associated with a first Unified Access Control (UAC) rule, wherein the first UAC rule has a first priority, wherein the first network service is a Short Messaging Service (SMS) over Non-Access stratum (NAS), and wherein the first network service is ongoing and a mobile originating (MO) IP Multimedia Subsystem (IMS) is ongoing; determining a second access attempt to access a second network service is associated with a second access category, wherein the second access category is associated with a second UAC rule, wherein the second UAC rule has a second priority, wherein the second network service is one of a service request procedure or a registration procedure, and wherein the first and second access attempts are initiated in 5G Mobility Management Idle (5GMM-IDLE) mode or 5GMM-IDLE mode with suspend indication for a purpose of NAS signaling connection recovery or following a service recovery indication from lower layers of the UE; and selecting one of the first access category or the second access category for the first and second access attempts based on, at least, a predefined rule indicating that an access category 6 is to be selected for the first and second access attempts when SMS over NAS is ongoing and MO IP IMS is ongoing. ### Claim 2 (depends on 1) The processor of claim 1, wherein the operations further comprise: receiving, from a network, the first and second UAC rules based on the UE having one of an active PDU session or active network slice related to the first and second network services. ### Claim 3 (depends on 2) The processor of claim 2, wherein the selecting is further based on, at least, the first and second UAC rules. ### Claim 4 (depends on 1) The processor of claim 1, wherein the first and second network services are associated with one of an active protocol data unit (PDU) session or an active network slice. ### Claim 5 A processor of a user equipment (UE) configured to perform operations comprising: determining a first access attempt to access a first network service is associated with a first access category, wherein the first network service is a Short Messaging Service (SMS) over Non-Access stratum (NAS), and wherein the first network service is ongoing and a mobile originating (MO) IP Multimedia Subsystem (IMS) is ongoing; determining a second access attempt to access a second network service is associated with a second access category, wherein the second network service is one of a service request procedure or a registration procedure, and wherein the first and second access attempts are initiated in 5G Mobility Management Idle (5GMM-IDLE) mode or 5GMM-IDLE mode with suspend indication for a purpose of NAS signaling connection recovery or following a service recovery indication from lower layers of the UE; and selecting one of the first access category or the second access category for the first and second access attempts based on, at least, a predefined rule indicating that an access category 6 is to be selected for the first and second access attempts when SMS over NAS is ongoing and MO IP IMS is ongoing. ### Claim 6 (depends on 1) The processor of claim 1, wherein no SMS over Internet Protocol (SMSoIP) is ongoing. ### Claim 7 (depends on 1) The processor of claim 1, wherein no Multimedia telephony (MMTEL) voice service is ongoing. ### Claim 8 (depends on 5) The processor of claim 5, wherein the operations further comprise: receiving, from a network, the predefined rule based on the UE having one of an active PDU session or active network slice related to the first and second network services. ### Claim 9 (depends on 5) The processor of claim 5, wherein the first and second network services are associated with one of an active protocol data unit (PDU) session or an active network slice. ### Claim 10 (depends on 5) The processor of claim 5, wherein no SMS over Internet Protocol (SMSoIP) is ongoing. ### Claim 11 (depends on 5) The processor of claim 5, wherein no Multimedia telephony (MMTEL) voice service is ongoing.