# US 11,451,952 B2 · Providing an indicator of presence of a first access network that is capable of interworking with a second access network > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,451,952 B2 - Document ID: US11451952B2 - Status: Granted - Kind: B2 - Application number: 14/887,568 - Filed: 2015-10-20 - Published: 2016-02-11 - Granted: 2022-09-20 - Earliest claimed: 2009-06-10 - Assignees: Apple Inc. - Applicants: Apple Inc. - Inventors: Ke-Chi Jang; Eric Parsons - Web page: https://patentgrep.com/patent/US11451952B2 ## CPC - H04W 8/18: Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data - H04W 8/22: Processing or transfer of terminal data, e.g. status or physical capabilities - H04W 48/10: using broadcasted information - H04W 48/18: Selecting a network or a communication service - 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 mobile station receives a control message containing an indicator of presence of a first access network that operates according to a first protocol that is capable of interworking with a second access network that operates according to a second, different protocol. In response to receiving the indicator, the mobile station performs a procedure to establish a personality for the mobile station that specifies the configuration to allow the mobile station to use features of the first access network that enable interworking with the second access network. ## Claims ### Claim 1 An apparatus, comprising: a memory; and at least one processor in communication with the memory, wherein the at least one processor and memory are configured to cause a mobile station to: receive a control message via an interface to a wireless link from a first access network, wherein the control message includes an indicator that the first access network is interoperable with a second access network, wherein the first access network has a first protocol, and the second access network has a second protocol; perform a procedure to establish a personality for the mobile station, in response to receiving the control message, wherein the personality is used for communication between the mobile station and the first access network, wherein the personality specifies a configuration allowing the mobile station to use features of the first access network that enable interworking with the second access network, and wherein to perform the procedure, the at least one processor is further configured to negotiate the personality with the first access network for the mobile station; and receive control information comprising multiple indicators regarding which neighbors of the first access network that the mobile station is currently in are first access networks that are capable of interworking with the second access network. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the at least one processor and memory are configured to cause the mobile station to perform the procedure to establish the personality after the mobile station has attached to the first access network. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein the at least one processor and memory are further configured to cause the mobile station to: initiate the procedure to establish the personality; and cooperate, in response to initiating the procedure, with the first access network to establish the personality for the mobile station. ### Claim 4 (depends on 1) The apparatus of claim 1, wherein, to receive the control message, the at least one processor and memory are further configured to cause the mobile station to receive a broadcast overhead message. ### Claim 5 (depends on 1) The apparatus of claim 1, wherein the personality defines protocol types and associated attribute values used for communication between the mobile station and the first access network. ### Claim 6 (depends on 1) The apparatus of claim 1, wherein to perform the procedure, the at least one processor and memory are further configured to cause the mobile station to perform a session configuration procedure with the first access network. ### Claim 7 (depends on 1) The apparatus of claim 1, wherein interworking with the second access network comprises one or more of: support for mobility of the mobile station; policy control and charging; access authentication; and roaming. ### Claim 8 An apparatus, comprising: a memory; and at least one processor in communication with the memory, wherein the at least one processor and memory are configured to: send, to a mobile station, a control message, wherein the control message includes an indicator that a first access network is interoperable with a second access network, wherein the first access network has a first protocol, and the second access network has a second protocol; establish a personality for the mobile station, wherein the personality is used for communication between the mobile station and the first access network, wherein the personality specifies a configuration allowing the mobile station to use features of the first access network that enable interworking with the second access network, and wherein to establish the personality, the at least one processor is further configured to negotiate the personality used for communication between the mobile station and the first access network that for the mobile station; and send control information comprising multiple indicators regarding which neighbors of the first access network that the mobile station is currently in are first access networks that are capable of interworking with the second access network. ### Claim 9 (depends on 8) The apparatus of claim 8, wherein the at least one processor and memory are configured to establish the personality after the mobile station has attached to the first access network. ### Claim 10 (depends on 8) The apparatus of claim 8, wherein, to send the control message, the at least one processor is further configured to send a broadcast overhead message. ### Claim 11 (depends on 10) The apparatus of claim 10, wherein the overhead message is broadcast over a control channel. ### Claim 12 (depends on 8) The apparatus of claim 8, wherein the personality defines protocol types and associated attribute values used for communication between the apparatus and the first access network. ### Claim 13 (depends on 8) The apparatus of claim 8, wherein interworking with the second access network comprises one or more of: support for mobility of the mobile station; policy control and charging; access authentication; and roaming. ### Claim 14 A mobile station, comprising: an interface to a wireless link; and at least one processor coupled to the interface and configured to: receive a control message via the interface from a first access network, wherein the control message includes an indicator that the first access network is interoperable with a second access network, wherein the first access network has a first protocol, and the second access network has a second protocol; perform a procedure to establish a personality for the mobile station, in response to receiving the control message, wherein the personality is used for communication between the mobile station and the first access network, wherein the personality specifies a configuration allowing the mobile station to use features of the first access network that enable interworking with the second access network, and wherein to perform the procedure, the at least one processor is further configured to negotiate the personality with the first access network for the mobile station; and receive control information comprising multiple indicators regarding which neighbors of the first access network that the mobile station is currently in are first access networks that are capable of interworking with the second access network. ### Claim 15 (depends on 14) The mobile station of claim 14, wherein the at least one processor is configured to perform the procedure to establish the personality after the mobile station has attached to the first access network. ### Claim 16 (depends on 14) The mobile station of claim 14, wherein interworking with the second access network comprises one or more of: support for mobility of the mobile station; policy control and charging; access authentication; and roaming. ### Claim 17 (depends on 14) The mobile station of claim 14, wherein the at least one processor is further configured: to initiate the procedure to establish the personality; and cooperate, in response to initiating the procedure, with the first access network to establish the personality for the mobile station. ### Claim 18 (depends on 14) The mobile station of claim 14, wherein, to receive the control message, the at least one processor is further configured to receive a broadcast overhead message. ### Claim 19 (depends on 14) The mobile station of claim 14, wherein the personality defines protocol types and associated attribute values used for communication between the mobile station and the first access network. ### Claim 20 (depends on 14) The mobile station of claim 14, wherein to perform the procedure, the at least one processor is further configured to perform a session configuration procedure with the first access network.