Abstract: A method for delivering SMS to ATs in a first communication network providing DO and 1x interfaces and for offloading the delivery of the SMS from a second communication network including an MSC, comprising monitoring a DO control channel for pages by an AT and delivering the SMS in SIP to the AT over the DO interface. The method may further comprise tuning the AT to the DO interface and determining whether the AT is SIP registered for using the DO interface. An application server determines whether the AT is SIP registered for using the DO interface. When the DO interface is not available, the SMS may be delivered over the 1x interface and the method further comprises the AT sending a special SMS to an SMS gateway, which causes the application server to remember that the AT is now monitoring the first communication network including a circuit-switched network.

Abstract: Provided is a sequence allocation method capable of reducing inter-cell interference of a reference signal when a ZC sequence is used as the reference signal in a mobile communication system. In the sequence allocation method divides R×M sequences specified by a ZC sequence number r (r=1 to R) and a cyclic shift sequence number m (m=1 to M) into a plurality of sequence groups X (X=1 to R) in accordance with the transmission band width of the reference signal, so that the ZC sequence is allocated to each cell in each sequence group unit. When it is assumed that R=9 and M=6, the number of sequence is 54. Each of the sequence groups is formed by two sequences. Accordingly, the number of sequence groups is 27. The 27 types of sequence groups are allocated to each cell.

Abstract: An apparatus for a fast reactive handover in an Internet Protocol version 6 (IPv6) mobile system is provided, in which a message receiver receives a new connection notification message from a point of attachment when the point of attachment makes a new connection with a mobile unit, and a message transmitter sends a router advertisement (RA) message to the mobile unit in response to receiving the new connection notification message.

Abstract: The invention relates to a method for blocking roaming steering mechanisms. According to said method, a foreign cellular device (3), e.g. a cellular telephone, is registered with nationally visited radio network (2) when the foreign (1) and the national cellular network operator have concluded a roaming agreement on mutually debiting cellular services. The invention is characterized in that an anti-roaming steering server (5) installed in the nationally visited cellular network (2) identifies manipulated error messages (14) and selectively manipulates the registration process (8) of foreign mobile users by adequately influencing signaling processes.

Abstract: A portable terminal including a terminal body having an earpiece mounting portion, and an earpiece detachably mounted at the earpiece mounting portion. The earpiece includes an earpiece body configured to communicate with the terminal body, and a speaker portion configured to output sound transmitted from the earpiece body, the speaker portion having a controllable length so as to reduce a thickness of the earpiece when the earpiece is detachably mounted at the earpiece mounting portion.

Abstract: According to one embodiment of the invention, a method comprises an exchange of messages between an access point and a wireless network switch. One message, a PROXY IGMP JOIN message, is transmitted to the access point for propagation to a multicast router. This is performed so that multicast data associated with the multicast group identified by the PROXY IGMP JOIN message is routed to the access point without any unnecessary involvement by the wireless network switch.

Abstract: A system and method for improving efficiency of satellite communications is described. In one embodiment, efficient satellite communications is enabled through event-driven reporting by a mobile terminal.

Abstract: Provided is a sequence allocation method capable of reducing inter-cell interference of a reference signal when a ZC sequence is used as the reference signal in a mobile communication system. In the sequence allocation method divides R×M sequences specified by a ZC sequence number r (r=1 to R) and a cyclic shift sequence number m (m=1 to M) into a plurality of sequence groups X (X=1 to R) in accordance with the transmission band width of the reference signal, so that the ZC sequence is allocated to each cell in each sequence group unit. When it is assumed that R=9 and M=6, the number of sequence is 54. Each of the sequence groups is formed by two sequences. Accordingly, the number of sequence groups is 27. The 27 types of sequence groups are allocated to each cell.

Abstract: The present invention provides systems and methods for facilitating mobile communication between a calling party and a called party. Aspects of the present invention include establishing, via a service node, mobile communications upon receiving a response, from the called party, to a mobile communication request made by the calling party to the service node, and further include facilitating, via the service node, charging the called party for the established mobile communications.

Abstract: A method of estimating the quality of speech information associated with a voice call over a communication system comprising a core network and an access network where speech information is carried between the access network and the core network and within the core network in frames. The method comprises determining a rate of frame loss for frames transported between the access network and the core network and/or within the core network, and mapping the rate of frame loss to a quality estimation value using data collected by simulating frame loss on representative speech samples and determining quality estimation values for the damaged speech samples.

Abstract: A method of supporting operation of sleep mode in a wideband radio access system is disclosed. More specifically, a mobile subscriber station (MSS) which determines a frame offset information for synchronizing listening windows of at least one MSS that is in sleep mode, and transmits the determined framed offset information to at least one MSS.

Abstract: Disclosed techniques enable wireless remote recovery for a wireless device that has encountered a potentially unrecoverable programming error during execution of a primary program controlling operations of the wireless device, e.g. an error that might otherwise prevent network communications. In response to the error, program execution changes over from the primary program to execution of a backup program. Under control of the backup program, the wireless device initiates a communication with a recovery server, over the air through a wireless network serving the wireless device. The communication utilizing the backup program enables the wireless device to receive programming from the recovery server, including a replacement version for at least a portion of the primary program. The primary program can then be corrected by replacing the portion thereof with the received replacement version. The wireless device then resumes normal operation, by resuming execution using the corrected primary program.

Abstract: A mobile terminal is provided that can satisfy various functions. The mobile terminal includes a first body, a second body mounted to the first body such that the second body can be opened and closed and a slide module is mounted between the first and second bodies, thereby enabling the first body to slidably move in one direction and fold in a different direction.

Abstract: A method of supporting operation of sleep mode in a wideband radio access system is disclosed. More specifically, a mobile subscriber station (MSS) which determines a frame offset information for synchronizing listening windows of at least one MSS that is in sleep mode, and transmits the determined framed offset information to at least one MSS.

Abstract: A mobile communication terminal, and a method of backing up and restoring calibration data thereof disclosed, thereby enabling a terminal to repair damage to radio frequency calibration data. The present invention includes a radio frequency calibration data checking unit comparing a checksum value of radio frequency calibration data stored in an internal terminal memory to a checksum of backup data value stored in a SIM card according when the terminal is turned on, the radio frequency calibration data checking unit determining whether the radio frequency calibration data stored in memory is the same as the data stored on the SIM radio frequency calibration data recovering unit for restoring the radio frequency calibration data from the SIM card.

Abstract: Method and nodes involving communicating charging information (CI) in a network comprising at least a serving node (SGSN) and a gateway node (GGSN) wherein charging information (CI) relating to a particular PDP context for a given mobile station is gathered in the gateway node and transmitted in a GTP header extension to a serving node (SGSN).

Abstract: A method performed by a mobile terminal may include setting a tracking parameter for a group of mobile terminals, transmitting text and position information messages of each of the mobile terminals, and displaying the messages based on priority. The method may further include automatically generating messages relating to the position of a mobile terminal.

Abstract: The present invention is to provide a topology system of wireless network with dynamic balance comprising at least one subsidiary topology system of wireless network each having a plurality of access points and only one access point automatically becomes a root access point which operates on a channel different from others, and dynamically generates an unique derivative group ID different from others as the root access point linked with a wired network; other access points not linked with the wired network join one of subsidiary topology systems of wireless network according to loading and dataflow of the subsidiary topology systems of wireless network, and automatically become either a pure access point or an escape access point, dynamically generate an unique derivative group ID same as those linked with other root access points, and operate on a channel same as those linked with other root access points.

Abstract: A technique for Doppler frequency estimation in Orthogonal Frequency Division Multiplexing (OFDM) systems. A frequency domain approach may be applied to any OFDM because it utilizes pilot subcarriers, and thus does not increase the system overhead. An estimator may be implemented as a relatively low-complexity finite impulse response (FIR) filter bank with coefficients that may be pre-calculated and stored in memory.