Abstract: A method of controlling an electronic device including a memory and a removable smart card. The method involves the device sending a request for context data to the smart card. The smart card sends context data to the device in response to the request and stores this data in the memory and power to the smart card is reduced. Power to the smart card is then increased or restored, and the data is written back to the smart card.

Abstract: This document discloses a solution for controlling a power-save mode of a radio modem. According to an aspect, a method comprises by a universal integrated circuit card: triggering an over-the-air update procedure upon receiving a first message via an interface between the universal integrated circuit card and a radio modem; in response to said triggering, transmitting over the interface to the radio modem a second message requesting the radio modem to refrain from entering the power-save mode; receiving, during the over-the-air update procedure, data of the over-the-air update procedure from an over-the-air update platform via the radio modem and via the interface; and upon completing the over-the-air update procedure, indicating allowance of the radio modem to enter the power-save mode.

Abstract: A method of communication between an electronic device and a cellular network employing a communication protocol is disclosed. The device initiates a connection with the network and during the initiation the device issues to the network at least one information criterion. Once the connection is established, the network forwards to the device only communications required by said communication protocol and any communications which meet the information criterion issued by the device.

Abstract: A hardware cipher engine encrypts or decrypts a block of input data from a sequence of blocks using a cipher operation where the block of output data depends on the input block's position in the sequence. In a random-access mode of operation, the engine receives a sequence position, receives a block of input data having that position, and outputs a block of output data without outputting data that encrypts, or that decrypts, every block of input data preceding the received position. In some embodiments, the operation is a stream cipher, and the engine generates a sequence of keystream blocks and performs a combining operation between the input block and a keystream block having a corresponding sequence position. In other embodiments, the cipher operation is a block cipher, and the engine generates, but doesn't output, blocks of data that encrypt, or decrypt, one or more blocks preceding the received input block.

Abstract: A method of communication over a cellular telecommunications network using an electronic device comprises communicating a session control signal between the electronic device and the cellular telecommunications network on a first radio channel provided by the cellular telecommunications network. The session control signal comprises identification data that identifies a remote party. The cellular telecommunications network uses the identification data to establish an IP-based communication session with the remote party. Content data for the IP-based communication session is communicated between the electronic device and the cellular telecommunications network on a second radio channel provided by the cellular telecommunications network.

Abstract: A method of communication over a cellular telecommunications network using an electronic device comprises communicating a session control signal between the electronic device and the cellular telecommunications network on a first radio channel provided by the cellular telecommunications network. The session control signal comprises identification data that identifies a remote party. The cellular telecommunications network uses the identification data to establish an IP-based communication session with the remote party. Content data for the IP-based communication session is communicated between the electronic device and the cellular telecommunications network on a second radio channel provided by the cellular telecommunications network.

Abstract: A method of communication between an electronic device and a cellular network employing a communication protocol is disclosed. The device initiates a connection with the network and during the initiation the device issues to the network at least one information criterion. Once the connection is established, the network forwards to the device only communications required by said communication protocol and any communications which meet the information criterion issued by the device.

Abstract: A method of controlling an electronic device including a memory and a removable smart card. The method involves the device sending a request for context data to the smart card. The smart card sends context data to the device in response to the request and stores this data in the memory and power to the smart card is reduced. Power to the smart card is then increased or restored, and the data is written back to the smart card.

Abstract: A hardware cipher engine encrypts or decrypts a block of input data from a sequence of blocks using a cipher operation where the block of output data depends on the input block's position in the sequence. In a random-access mode of operation, the engine receives a sequence position, receives a block of input data having that position, and outputs a block of output data without outputting data that encrypts, or that decrypts, every block of input data preceding the received position. In some embodiments, the operation is a stream cipher, and the engine generates a sequence of keystream blocks and performs a combining operation between the input block and a keystream block having a corresponding sequence position. In other embodiments, the cipher operation is a block cipher, and the engine generates, but doesn't output, blocks of data that encrypt, or decrypt, one or more blocks preceding the received input block.

Abstract: The techniques described increase efficiency and operation of a device operating in one or more communication systems. These embodiments provide a method for a device to perform selected scanning procedures of one or more communication systems based on the type of event detected by the device. One method includes detection of the opening or closing of the flip cover of the device and performing scanning as a result of detecting the event. Another method performs scanning in different modes such as high-scan, medium-scan and low-scan modes.

Abstract: There are disclosed means, namely methods, apparatuses, network elements, systems and computer programs, for assigning, to a user equipment, a default bearer, and for assigning, to the user equipment, a dedicated special-purpose bearer such as an emergency bearer. According to exemplary implementations, the dedicated special-purpose bearer is assigned during network attachment of the user equipment or after network attachment of the user equipment, either in a preemptive or in an on-demand manner.

Abstract: The techniques described increase efficiency and operation of a device operating in one or more communication systems. These embodiments provide a method for a device to perform selected scanning procedures of one or more communication systems based on the type of event detected by the device. One method includes detection of the opening or closing of the flip cover of the device and performing scanning as a result of detecting the event. Another method performs scanning in different modes such as high-scan, medium-scan and low-scan modes.