Abstract: A method and apparatus for resetting a maximum tunnel watermark, the method starting a reset timer for a maximum tunnel count at a mobile device; on expiration of the reset timer, checking whether a current value for the maximum tunnel count is less than a maximum value for the maximum tunnel count, and if yes, setting the current value of the maximum tunnel count to the maximum value of the maximum tunnel count.

Abstract: A process transfers data packets through a protocol stack employed by a device that transmits packets on a packet connection to a wireless network between at least two, distinct wireless access technologies such as GSM/GPRS and UMTS. A first layer of the stack stores a copy of a transferred packet until confirmation is received from a next, lower layer of successful transfer of the packet of the stack. In the absence of such confirmation and on the occurrence of a switch of the packet connection to a new connection path, particularly one of a different wireless access technology, the stored packet is transferred to the protocol stack to be employed by the wireless device for the new packet connection path. Consequently, the packet transfer process avoids packets being lost on the occurrence of a switch between different technology wireless access packet connection paths.

Abstract: The invention is directed to a process for transferring data packets through a protocol stack employed by the device for transmitting packets on a packet connection to a wireless network, said wireless network operating at least two, distinct wireless access technologies such as GSM/GPRS and UMTS. The packet transfer process generally comprises each layer of a protocol stack for a currently active packet connection path providing confirmation to a next, higher layer in the stack of successful reception of a data packet from that layer, thereby confirming successful transfer of the data packet through the stack. The first layer of the stack stores a copy of a transferred packet until such time as its receives confirmation from the next, lower layer of successful transfer of the packet of the stack.

Abstract: A method and apparatus for resetting a maximum tunnel watermark, the method starting a reset timer for a maximum tunnel count at a mobile device; on expiration of the reset timer, checking whether a current value for the maximum tunnel count is less than a maximum value for the maximum tunnel count, and if yes, setting the current value of the maximum tunnel count to the maximum value of the maximum tunnel count.

Abstract: A method and system for establishing and maintaining a high speed tunnel between a mobile device and a network, the method determining whether a foreground application on the mobile device requires the high speed tunnel, and if the foreground application requires the high speed tunnel, closing all tunnels from the mobile device to a network except the tunnel for the foreground application.

Abstract: In accordance with the teachings described herein, systems and methods are provided for managing communications between a mobile device and a wireless network. The mobile device may include an executable network management program that causes the mobile device to terminate a first communication link with the wireless network while in an out-of-coverage state, and queue data in the mobile device relating to the first communication link. The network management program may further cause the mobile device to receive instructions to establish a second communication link between the mobile device and the wireless network, and delete the queued data relating to the first communication link.

Abstract: Apparatus and a method for handling out of service emergency calls in a wireless telecommunications system user equipment (UE) are disclosed. When an emergency call is initiated on a UE when the UE is in an out of service area, the UE in response to the initiating of an emergency call initiates a search for an acceptable cell rather than continuing with a search for suitable cells. The UE checks whether an acceptable cell is found. If an acceptable cell is found then the emergency call is connected.

Abstract: Methods and apparatus for providing manual selection of a communication network for a mobile station are described. A plurality of communication networks are identified by scanning a coverage area within which the mobile station is operating. A plurality of network identifiers corresponding to the plurality of communication networks are then retrieved from memory of a Subscriber Identity Module (SIM) in accordance with an Enhanced Operator Name String (EONS) protocol. Preferably, each network identifier is retrieved based on a Mobile Country Code (MCC), a Mobile Network Code (MNC), and a Location Area Code (LAC). The plurality of network identifiers are visually displayed for user selection, and at least two of the network identifiers may be substantially the same. The user selected communication network is registered with and the network identifier associated with this network is visually displayed.

Abstract: Methods and apparatus for use in a wireless communication device for re-establishing communications with a wireless communication network are described. In one illustrative technique, a data connection is maintained with the wireless network for communicating data with use of data connection parameters (e.g. an encryption parameter). In response to a communication failure, the wireless device attempts to establish a new data connection with the wireless network. To do this, the wireless device sends a message to the wireless network which causes the data connection parameters to be reset. Preferably, the message is a disconnect frame. After the message is sent, the wireless device sends an attach request to the wireless network. Thereafter, the wireless device communicates data over the new data connection with use of new data connection parameters.

Abstract: The invention is directed to a process for transferring data packets through a protocol stack employed by the device for transmitting packets on a packet connection to a wireless network, said wireless network operating at least two, distinct wireless access technologies such as GSM/GPRS and UMTS. The packet transfer process generally comprises each layer of a protocol stack for a currently active packet connection path providing confirmation to a next, higher layer in the stack of successful reception of a data packet from that layer, thereby confirming successful transfer of the data packet through the stack. The first layer of the stack stores a copy of a transferred packet until such time as its receives confirmation from the next, lower layer of successful transfer of the packet of the stack.

Abstract: In accordance with the teachings described herein, systems and methods are provided for managing communications between a mobile device and a wireless network. The mobile device may include an executable network management program that causes the mobile device to terminate a first communication link with the wireless network while in an out-of-coverage state, and queue data in the mobile device relating to the first communication link. The network management program may further cause the mobile device to receive instructions to establish a second communication link between the mobile device and the wireless network, and delete the queued data relating to the first communication link.