Abstract: A terminal for communication with a communication network and a method of configuring a subscriber identity device are disclosed. In one embodiment, the terminal includes computer storage configured to store a subscriber identity application, a processing unit operable to provide access to the communication network by executing an instance of the subscriber identity application, and a toolkit file assigning a modem of the terminal to handle at least one communication procedure for effecting said communication with the communication network, wherein the transferred terminal profile information assigns a host processor of the terminal to handle at least one communication procedure for effecting said communication with the communication network.

Abstract: One aspect provides a method of handling a proactive indication received from a subscriber identity module at a modem, the modem being connected to a terminal equipment via a command interface. The method comprises receiving, at a modem processor, the proactive indication from the subscriber identity module. The method further comprises determining that the indication is to be handled by the modem processor. The method further comprises a modem processor transmitting a display command via the command interface to the terminal equipment and the modem processor awaiting a user response command, and continuing or aborting an action indicated in the proactive indication depending on the user response in the user response command received from the terminal equipment.

Abstract: One aspect provides a method of operating a modem at a terminal. The modem is arranged to store one or more message identifier. Each of the one or more message identifier identifies a type of message that the modem is arranged to act upon when received on a broadcast channel from a communications network. The method comprises detecting a country that the terminal is located in. The method further comprises determining if the detected country is a country in which a public warning system is implemented. The method further comprises determining if the one or more message identifier includes only public warning message identifiers. The method further comprises disabling monitoring of the broadcast channel if the detected country is not a country in which a public warning system is implemented and the one or more message identifier includes only public warning message identifiers.

Abstract: This disclosure presents a modem for use at a terminal for accessing first and second communication networks that comprises a device interface for connecting to a subscriber identity device that stores first and second subscriber identity applications, and first and second pieces of user authentication data, separate from one another, for effecting independent first and second user authentication procedures for the first and second applications, respectively. A processing unit executes the first application to provide access to the first network when the first authentication procedure has been completed, and executes the second application to provide access to the second network when the second authentication procedure has been completed. An actuation component responds to an authentication command received via a host interface to identify at least one of the first and second pieces of user authentication data to perform an authentication task in relation to the identified user authentication data.

Abstract: This disclosure presents a modem for use at a terminal for accessing first and second communication networks that comprises a device interface for connecting to a subscriber identity device that stores first and second subscriber identity applications, and first and second pieces of user authentication data, separate from one another, for effecting independent first and second user authentication procedures for the first and second applications, respectively. A processing unit executes the first application to provide access to the first network when the first authentication procedure has been completed, and executes the second application to provide access to the second network when the second authentication procedure has been completed. An actuation component responds to an authentication command received via a host interface to identify at least one of the first and second pieces of user authentication data to perform an authentication task in relation to the identified user authentication data.

Abstract: A terminal for communication with a communication network and a method of configuring a subscriber identity device are disclosed. In one embodiment, the terminal includes computer storage configured to store a subscriber identity application, a processing unit operable to provide access to the communication network by executing an instance of the subscriber identity application, and a toolkit file assigning a modem of the terminal to handle at least one communication procedure for effecting said communication with the communication network, wherein the transferred terminal profile information assigns a host processor of the terminal to handle at least one communication procedure for effecting said communication with the communication network.

Abstract: A communication interface and method for efficient robust header compression (RoHC). One embodiment of the communication interface includes: (1) a data flow associated with a context ID (CID) and a data flow status indicator, and having packets, and (2) a robust header compression (RoHC) compressor configured to employ the CID to compress headers of the packets and to mark the CID as reusable by another data flow if the data flow status indicator indicates the data flow is terminated.

Abstract: A modem and a method for handing over Internet protocol (IP) multimedia subsystem (IMS) sessions from a packet-switched network to a circuit-switched network. One embodiment of the modem includes: (1) a physical layer through which IMS packets for a plurality of IMS sessions are transmittable and receivable, and (2) a control layer configured to gain access to respective IMS session data for the plurality of IMS sessions, the respective IMS session data originating from a host IMS application.

Abstract: One aspect provides a modem for use at a terminal. The modem comprises a first interface and a processing unit. The first interface is arranged to connect to a communications network. The processing unit is arranged to receive a message from the communications network via the first interface while in an operating mode. The processing unit is also arranged to assess the message on receipt to determine that one or more public warning message is to be broadcast to the modem from the communication network in a second later time period. The processing unit is also arranged to, based on the determination, modify operation of the modem in the second later time period to ensure the one or more public warning message is received and acted on by the modem.

Abstract: A modem for use at a terminal, the modem comprising: a first interface arranged to connect to a communications network; a second interface arranged to connect to a host processor on the terminal; and a processing unit, the processing unit configured to: detect that a call is to be established over the communications network; in response to said detection, perform a call setup procedure; determine if the call setup procedure has been successful or has failed due to failure of a security procedure; and in response to determining that the call setup procedure has failed due to failure of a security procedure, repeat said call setup procedure without indicating failure of the call setup procedure to a user of said terminal.

Abstract: A method of handling messages at a user equipment received from a communications network during a procedure, the method implemented at the user equipment comprising: receiving a first message from the network while the user equipment is in a first operating state; processing the first message and entering a second operating state in response to receiving the first message; receiving a second message from the network while the user equipment is in the second operating state; detecting that the second message is a duplicate of the first message; and checking for an indication that the second message is a potential duplicate of the first message. If the indication is not present, the method further comprises transmitting a failure notification to the network. If the indication is present, the method further comprises discarding the second message and not transmitting a failure notification to the network to prevent failure of the procedure.

Abstract: A mobile communication device, a method of establishing a mobile telephone voice call and an apparatus are provided herein. In one embodiment, the mobile communication device includes: 1) a processor configured to indicate a voice call employing the mobile communication device is a hearing impaired call and (3) a modem configured to initiate establishment of the hearing impaired call with a mobile cellular network, wherein the establishment includes providing a hearing impaired codec list to the mobile cellular network.

Abstract: A modem for use at a terminal, the modem comprising: a first interface arranged to connect to a communications network; a second interface arranged to connect to a host processor on the terminal; and a processing unit, the processing unit configured to: detect that a call is to be established over the communications network; in response to said detection, perform a call setup procedure; determine if the call setup procedure has been successful or has failed due to failure of a security procedure; and in response to determining that the call setup procedure has failed due to failure of a security procedure, repeat said call setup procedure without indicating failure of the call setup procedure to a user of said terminal.

Abstract: A mobile communication device, a method of establishing a mobile telephone voice call and an apparatus are provided herein. In one embodiment, the mobile communication device includes: 1) a processor configured to indicate a voice call employing the mobile communication device is a hearing impaired call and (3) a modem configured to initiate establishment of the hearing impaired call with a mobile cellular network, wherein the establishment includes providing a hearing impaired codec list to the mobile cellular network.

Abstract: A communication interface and method for efficient robust header compression (RoHC). One embodiment of the communication interface includes: (1) a data flow associated with a context ID (CID) and a data flow status indicator, and having packets, and (2) a robust header compression (RoHC) compressor configured to employ the CID to compress headers of the packets and to mark the CID as reusable by another data flow if the data flow status indicator indicates the data flow is terminated.

Abstract: A modem and a method for handing over Internet protocol (IP) multimedia subsystem (IMS) sessions from a packet-switched network to a circuit-switched network. One embodiment of the modem includes: (1) a physical layer through which IMS packets for a plurality of IMS sessions are transmittable and receivable, and (2) a control layer configured to gain access to respective IMS session data for the plurality of IMS sessions, the respective IMS session data originating from a host IMS application.

Abstract: A bandwidth-dependent robust header compression (RoHC) compressor and a method of RoHC. One embodiment of the bandwidth-dependent RoHC compressor is embodied in a protocol stack, including: (1) a bandwidth estimator operable to generate an indicator of excess bandwidth on a channel over which a data flow having original packet headers compressed at an initial compression level is transmitted, and (2) a robust header compression (RoHC) compressor operable to gain access to the indicator and select a reduced compression level based on the indicator.

Abstract: One aspect provides a modem for use at a terminal. The modem comprises a first interface and a processing unit. The first interface is arranged to connect to a communications network. The processing unit is arranged to receive a message from the communications network via the first interface whilst in an operating mode. The processing unit is also arranged to assess the message on receipt to determine that one or more public warning message is to be broadcast to the modem from the communication network in a second later time period. The processing unit is also arranged to, based on the determination, modify operation of the modem in the second later time period to ensure the one or more public warning message is received and acted on by the modem.

Abstract: One aspect provides a method of operating a modem at a terminal. The modem is arranged to store one or more message identifier. Each of the one or more message identifier identifies a type of message that the modem is arranged to act upon when received on a broadcast channel from a communications network. The method comprises detecting a country that the terminal is located in. The method further comprises determining if the detected country is a country in which a public warning system is implemented. The method further comprises determining if the one or more message identifier includes only public warning message identifiers. The method further comprises disabling monitoring of the broadcast channel if the detected country is not a country in which a public warning system is implemented and the one or more message identifier includes only public warning message identifiers.

Abstract: A method of handling messages at a user equipment received from a communications network during a procedure, the method implemented at the user equipment comprising: receiving a first message from the network whilst the user equipment is in a first operating state; processing the first message and entering a second operating state in response to receiving the first message; receiving a second message from the network whilst the user equipment is in the second operating state; detecting that the second message is a duplicate of the first message; and checking for an indication that the second message is a potential duplicate of the first message. If the indication is not present, the method further comprises transmitting a failure notification to the network. If the indication is present, the method further comprises discarding the second message and not transmitting a failure notification to the network to prevent failure of the procedure.