Abstract:
A communication system comprising a mobile station and a network implements a persistent packet data control channel that provides for a continuous exchange of control information, such as system information (SI) messages and handoff-related information. The mobile station implements the persistent packet data control channel by mapping the persistent packet data control channel to a packet associated control channel when a packet associated control channel is available and to a virtual associated control channel when a packet associated control channel is not available. The virtual associated control channel allows the mobile station to pass control information to network in the absence of an uplink Temporary Block Flow (TBF).
Abstract:
Architectures and methods architectures for providing real-time cost information to communications applications, for example for transactions conducted by mobile wireless communications devices before the transaction is conducted. In one embodiment a communication transaction is selected at user equipment (UE) (302), a transaction cost request is communicated (304) from the application is to a communication server (306). In response, the server communicates (308) a firm or estimated cost to the UE. The cost may be based on subscription profile information obtained (312) from a source (314) and/or from information obtained (316) from a content provider (317). In some embodiments, the UE accepts or declines to conduct the transaction based on the cost.
Abstract:
A method and apparatus for mitigating the impact of lost data due to cell reselection for mobile stations operating in packet data transfer mode is described. A mobile station may perform cell reselection 2 to 4 times per minute when located in an urban area, even if the mobile station remains stationary. A mobile station moving through a communications network (100) may cross over various cell and routing area boundaries. Further, a mobile station operating in push-to-talk mode may lose up to 8 seconds of data when reselecting a cell in a new routing area. A serving cell transmits an information element (301, 303, 305) in which the mobile station is informed whether cells in its neighbor list are in the same routing area as its serving cell. If the radio link to the serving cell is acceptable then the mobile station avoids reselection to cells outside its serving cell routing area.
Abstract:
A method and apparatus for authentication of a client device (256) utilizing remote multiple access to a server device (200) that includes a first authentication application unit (420), positioned within the client device, and a second authentication application unit (408) positioned in the server device. The first authentication application unittransmits a first synchronization command (500) to the server device over the packet data network (424), and the second authentication application unit generates a user unit code and transmits (502) the generated user unit code to the client device over the packet data network in response to the first synchronization command. The first authentication application unit and the second authentication application unit store the generated user unit code, and the server device transmits a message (508) that includes a control command and the user unit code stored in the second authentication application unit to the client device over the packet data network. The first authentication application unit compares the user unit code received in the message with the user unit code stored in the client device and executes (510) the control command in response to the user unit code stored in the client device being the same as the user unit code received in the message.
Abstract:
An apparatus enabling multiple client devices (204, 206 and 208) to access a SIM card (202), coupled to a server device (200), along a local link (210), that includes a SIM card interface (214) and a router unit (226). The SIM card interface (214) couples the SIM card (202) to the server device (200), formats the commands from the client devices for transmission to the SIM card, and formats responses to the commands for transmission from the SIM card to the client devices. The router unit (226) routes the commands from the server device to the SIM card interface, and routes the responses to the commands for transmission along the local link from the SIM card to the client devices. A broadcast message is transmitted by the router unit along the local link to the client devices in response to detecting a physical presence signal transmitted by the SIM card interface in response to the SIM card being coupled to the SIM card interface.
Abstract:
Methods and apparatus for simultaneous independent voice and data services using a remote subscriber identity module (SIM) are disclosed. The methods and apparatus described herein allow a personal computer (or other data station) which does not contain a SIM card and a mobile phone (or other voice station) which does contain a SIM card to cooperate wirelessly to allow the personal computer to use the SIM card in the mobile phone in a virtual manner. As a result, the personal computer may transmit and receive packet-switched data at the same time the mobile phone is transmitting or receiving a circuit-switched voice signal without interference between the two simultaneous transmissions.
Abstract:
A method and apparatus enabling a mobile user device (102) to anonymously access a network (108, 114) in the absence of a subscriber identity module (SIM) card (142) that includes an interim identity generator (138), positioned in the mobile user device, generating an interim international mobile subscriber identity (IMSI) in response to the SIM card not being positioned within the mobile user device. The interim IMSI is utilized for signaling exchanges requiring information corresponding to the SIM card when the SIM card is not inserted within the mobile user device. A user identity module (152, 154) detects the presence of the interim IMSI in a signaling message, and routes the signaling message to a first home location register (156), in response to the signaling message including the interim IMSI, which then computes and transmits an authentication triplet to the mobile user device. The user identity module routes the signaling message to a second home location register (150) in response to the signaling message not including the interim IMSI.
Abstract:
A communication system for exchanging session initiation protocol signaling messages between a user host associated with a wireless communication device, and a remote user host, through a network, and method therefor. A multiplexer module positioned within the wireless communication device multiplexes call control data, session initiation protocol commands, and packet data setup and status transmitted between the wireless communication device and the network. A control module located in the multiplexer determines whether a packet associated control channel has been set up, and, in response to the packet associated control channel not being set up, the multiplexer module utilizes a slow dedicated control channel for transmitting signaling associated with requesting a packet associated control channel for transmitting the session initiation protocol commands.
Abstract:
A radiotelephone device receiving network information (Fig. 4) receives a mode for exchange of acknowledgement information determined and transmitted from a network acknowledgement module (steps 300 and 302). The radiotelephone transmits the acknowledgement information with to the network through a main dedicated control channel (step 304) in response to the mode information. Otherwise the radiotelephone device transmits acknowledgement using a temporary block flow acknowledgement interchange in response to the mode being other than the main dedicated control channel (step 308, 310, and 312).