# US 2019/0357119 A1 · Access control method and device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0357119 A1 - Document ID: US20190357119A1 - Status: Published application - Kind: A1 - Application number: 16/476,971 - Filed: 2018-01-29 - Published: 2019-11-21 - Earliest claimed: 2017-02-02 - Assignees: Kt Corporation - Applicants: Kt Corporation - Inventors: Sung-pyo HONG; Woo-jin CHOI - Web page: https://patentgrep.com/patent/US20190357119A1 ## CPC - H04W 48/08: Access restriction or access information delivery, e.g. discovery data delivery (signalling during connection H04W76/00) - H04L 1/1614: {using bitmaps} - H04W 48/02: Access restriction performed under specific conditions - H04W 76/25: Maintenance of established connections - H04W 48/12: using downlink control channel - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract An access control technology in a next generation mobile communication network is disclosed. More specifically, disclosed is a technology for controlling an access control operation of a terminal through an integrated category by various methods and layers. One embodiment provides a method by which a terminal performs integrated access control, comprising the steps of: receiving, from a base station, system information including information for access control; indicating access category information from an NAS layer to an AS layer of the terminal when an access attempt is triggered; confirming whether access barring parameter information is included in the system information; and controlling an access barring check operation in the AS layer by using at least one of the access category information and the access barring parameter information. ## Claims ### Claim at position 1 1-19. (canceled) ### Claim 20 A method of a user equipment (UE) for performing unified access control, the method comprising: receiving system information including information for access control from a base station; when access attempt is triggered, instructing (or providing) access category information from an non-access stratum (NAS) layer of the UE to an access stratum (AS) layer; checking whether access barring information for access category is included in the system information; and checking access barring index information associated to the access category, and controlling access barring check operation in the AS layer using the access barring parameter corresponding to the access barring index information. ### Claim 21 (depends on 20) The method according to claim 20, wherein the information for access control includes the access barring index information associated with the access category and the access barring parameter information for each access barring index, and the information for access control is received through system information block (SIB) 1 which is minimum system information. ### Claim 22 (depends on 20) The method according to claim 20, wherein the access category information is set for each access attempt type that is classified based on an application service type of the UE or a transmission signaling processing procedure. ### Claim 23 (depends on 20) The method according to claim 20, wherein the access barring parameter information is set in association with at least one of UE configuration information of the UE and the access category information. ### Claim 24 (depends on 20) The method according to claim 20, wherein the barring parameter information includes at least one of barring factor information, barring time information and barring bitmap information, and the barring parameter information is identified by being distinguished by the access barring index information. ### Claim 25 (depends on 20) The method according to claim 20, wherein, when barring bitmap information according to UE configuration information is set a pre-set value, the controlling of the access barring check operation is performed such that access attempt of the access category indicated from the NAS layer is allowed. ### Claim 26 (depends on 25) The method according to claim 25, wherein the UE configuration information is set as at least one of access classes 11, 12, 13, 14 and 15. ### Claim 27 A method of a base station for performing unified access control, the method comprising: generating information for access control including access barring index information associated with an access category and access barring parameter information for each access barring index; including the information for access control in system information and then transmitting the system information including the information for access control to a user equipment (UE); and receiving access request information by the UE determined based on the system information. ### Claim 28 (depends on 27) The method according to claim 27, wherein the UE checks access barring index information associated to the access category and transmits the access request information according to results of the performing of access barring check operation from an access stratum (AS) layer using the access barring parameter corresponding to the access barring index information. ### Claim 29 (depends on 27) The method according to claim 27, wherein the access barring parameter information includes at least one of barring factor information, barring time information and barring bitmap information, and the access barring parameter information is identified by being distinguished by the access barring index information. ### Claim 30 A user equipment (UE) performing unified access control, the UE comprising: a receiver configured to receive system information including information for access control from a base station; and a controller configured to, when access attempt is triggered, control access category information to be instructed from an non-access stratum (NAS) layer of the UE to an access stratum (AS) layer, check whether access barring (parameter) information for the access category is included in the system information, and check access barring index information associated to the access category, and control access barring check operation in the AS layer using the access barring parameter corresponding to the access barring index information. ### Claim 31 (depends on 30) The user equipment according to claim 30, wherein the information for access control includes the access barring index information associated with the access category and the access barring parameter information for each access barring index, and the information for access control is received through system information block (SIB) 1 which is minimum system information. ### Claim 32 (depends on 30) The user equipment according to claim 30, wherein the access category information is set for each access attempt type that is classified based on an application service type of the UE or a transmission signaling processing procedure. ### Claim 33 (depends on 30) The user equipment according to claim 30, wherein the access barring parameter information is set in association with at least one of UE configuration information of the UE and the access category information. ### Claim 34 (depends on 30) The user equipment according to claim 30, wherein the barring parameter information includes at least one of barring factor information, barring time information and barring bitmap information, and the barring parameter information is identified by being distinguished by the access barring index information. ### Claim 35 (depends on 30) The user equipment according to claim 30, wherein, when barring bitmap information according to UE configuration information is set a pre-set value, the controller controlling access attempt of the access category indicated from the NAS layer to be allowed. ### Claim 36 (depends on 35) The user equipment according to claim 35, wherein the UE configuration information is set as at least one of access classes 11, 12, 13, 14 and 15.