Abstract: Provided is a resource allocation apparatus and method in a multi frequency-time division multiple access (MF-TDMA) broadband satellite system, which can employ timeslots in a return link with a maximum throughput promptly, by dividing a timeslot assignment problem minimizing a weighted sum in response to a resource allocation request from terminals into a first sub-problem for deciding the number of timeslots to be allocated to each class of each terminal and a second sub-problem for selecting timeslots to be allocated to each terminal. The method includes the steps of accumulating an amount of resource requests created during a super-frame period for each terminal, deciding a resource allocation amount to be allocated to each class, and selecting and mapping timeslots to be allocated to each terminal based on the decided resource allocation amount. This invention may advantageously be applied to the MF-TDMA broadband satellite system.

Abstract: A communication system, method, computer program product, and apparatus include common equipment shared between multiple independently administered networks. The common equipment is reconfigurable and expandable and provides changed communication capacity and functions when additional elements are added or reconfigured. Configurable features include, for example, communication bandwidth, Quality of Service, and a number of communication satellites included in the communication system. The common equipment includes expandable elements including, for example, a single hub modem chassis that can expand to communicate with more than one communication satellite and a protocol processor that can share a protocol processing task with another protocol processors.

Abstract: An apparatus dynamically assigns external home agent (HA) for VPNs and a method for the same is proposed. The apparatus establishes VPN between an internal network and at least one external network, whereby a mobile node (MN) can roam in the external network with security. The external HA closest to the MN in the visited external network is selected for mobility management of the MN. The MN only needs to register with the same external HA when roaming in the same external network. The handoff latency and end-to-end latency for a roaming MN, therefore, could be reduced significantly. It will also not reestablish the IPsec tunnel within the same external network.

Abstract: A system is provided for postal address validation using mobile device location data. The system includes a location system operable to determine mobile device location information. The system also includes an address validation system operable responsive to identifying an incorrect billing address for a customer to determine a new postal address for billing the customer based on the mobile device location information. A method is provided for determining a postal address using location data for a mobile device.

Abstract: A method and system for setting up an emergency services call (ESC) to an emergency services network (ESN), where the method involves receiving a request to set up an ESC between a calling device and an ESN, determining whether the calling device is a fixed device or a mobile device, setting up the ESC to a wireless telephone number of the ESN if the calling device is a fixed device, and setting up the ESC to a wireless telephone number of the ESN if the calling device is a mobile device. In the case of the calling device being a fixed device, an ESC conversation is sent to the wireless telephone number of the ESN via a wireless air interface, and location determination information for determining the location of the calling device is sent to a landline signaling interface of the ESN using out-of-band signaling.

Abstract: The invention relates to a method between a communications device (110) and a communications network, which communications network generally provides at least a direct cell access mechanism and an alternative cell access mechanism for the communications device for uplink access to the communications network. The method comprises determining by the communications network and indicating (230) to the communications device (110) whether the direct cell access mechanism can at a given time be provided. This being the case, the communications device can directly start sending user data (150) on a traffic channel. In a situation in which the direct cell access cannot be provided, it is indicated to the communications device that the alternative cell access mechanism should be used.

Abstract: A physical layer unit (PLU) for receiving (and transmitting) various signals, a wireless Local Area Network (LAN) system including the PLU, and a wireless LAN method using the wireless LAN system. The wireless LAN system is capable of receiving signals of different standards, by performing a first preamble processing of an input signal for a predetermined first time period of 16 ?s (the preamble processing time period according to an OFDM standard for determining whether the input signal corresponds to the OFDM standard), and performing a second preamble processing within a predetermined second time period (the remainder of a preamble processing time period for determining whether the input signal corresponds to a DSSS/CCK standard), if the input signal does not correspond to the OFDM standard. Therefore, DSSS/CCK and OFDM signals can be transmitted and received reliably in the integrated wireless LAN system according to the IEEE 802.11.g standard.

Abstract: Apparatus and methods for estimating a geographical position corresponding to an event associated with operation of a wireless device communicating in a wireless communications network. The time and distance between the occurrence of the event and the related time and speed of the wireless device of at least one of a first and second geographical position, respectively measured before and after the event, are analyzed. These analyses includes comparing those metrics to predetermined time and distance thresholds to associate and/or estimate a geographic position of the wireless device with the event.

Abstract: A system and method for establishing communication with a target mobile station (312) initiated in part by establishment of a traffic communication channel with a target mobile station (312). Responsive to establishing the traffic communication channel, a message is sent by the target mobile station (312) substantially immediately to a dispatch server (304) via the traffic communication channel. The message comprises information indicating acceptance of a push-to-talk (PTT) request.

Abstract: A satellite communications system (10) includes a hub (14), a satellite (32), and any number of remote terminals (16). Each remote terminal (16) includes a remote receiver (38), a monitor (40), and a network access controller (42). Each remote receiver (38) is configured to receive and down convert the system's entire spectrum of interest from which channels are accessed by the remote terminals (16). The monitors (40) independently perform FFT processes over this entire spectrum, but at a low frequency resolution which is no higher than needed to distinguish channels. Based on these spectral analyses, uplink/inbound channels are independently selected by the network access controllers (42) at each remote terminal (16). Remote terminals (16) immediately transmit data to the hub (14) as soon as they select an uplink/inbound channel.

Abstract: An apparatus for wireless communication including an automated intrusion detection process is provided. The apparatus has a portable housing, which may have a length no greater than 1 meter, a width no greater than 1 meter, and a height of no greater than 1 meter. A processing unit (e.g., CPU) is within the housing. One or more wireless network interface devices are within the housing and are coupled to the processing unit. The apparatus has an Ethernet (or like) network interface device within the housing and coupled to the processing unit. A network connector is coupled to the Ethernet network device. One or more memories are coupled to the processing unit. A code is directed to perform a process for detection of a wireless activity within a selected local geographic region. According to a specific embodiment, the wireless activity is derived from at least one authorized device or at least an other device.

Abstract: In an arrangement (1) for processing a signal (S) which has successive signal sections (SP), wherein each signal section (SP) comprises a useful information item (UI) and an additional information item (AI) and wherein a time-dependent occurrence of a final range (EA) of a signal section (SP) can be determined with the aid of the additional information item (AI) of this signal section (SP), there are provided channel selection means (6) which can be used to temporally successively select at least two channels (C1, C2, C3) and, using the additional information item (AI) in accordance with the selected channel (C1, C2, C3), to determine the time-dependent occurrence of the respective final range (EA), and, following the determination of the time-dependent occurrence of the respective final ranges (EA) of the signal sections (SP) in at least two channels (C1, C2, C3), to select that channel (C1, C2, C3) in which the signal section (SP) with the temporally next final range (EA) occurs.

Abstract: A Dynamically Reconfigurable Dynamic Wireless Network for connecting a local area network (“LAN”) to wireless Mobile Stations. Backbone Access Points (“Backbone APs”) are physically connected to the LAN. Levels of Wireless Access Points (“Wireless APs”) are daisy-chained together and connected to the Backbone AP, providing an extended area of network coverage. Mobile stations are connected to either Backbone APs or Wireless APs. Dynamic Reconfiguration prevents single point failures. Each AP contains a router, Address Resolution Protocol (“ARP”) cache, and Distributed Routing Table (“DR Table”). The DR Table maintains the Media Access Control (“MAC”) address and the Internet Protocol (“IP”) address of each AP below it in the Distributed Routing Tree. Additionally, each DR Table also maintains the IP address for the device each AP is connected. The Distributed Routing Tree is dynamically reconfigured to minimize transmission hops or to maximize signal strength between Mobile Stations and the LAN.

Abstract: Embodiments of methods and apparatus for providing information indicative of traffic delay of a wireless link are generally described herein. Other embodiments may be described and claimed.

Abstract: Disclosed herein is a multi-band ZigBee transceiver for supporting IEEE 802.15.4 wireless communications. In the multi-band ZigBee transceiver, a Multi-Mode Modem (MMM) selects any one of a European version standard using 860 MHz band, a US version standard using 920 MHz band, and a worldwide version standard using 2.4 GHz ISM band among IEEE 802.15.4 standards. A frequency synthesizing unit variably adjusts a carrier frequency according to the transmission standard. A transmission unit receives a digital modulated signal, low-pass-filters the digital modulated signal with a bandwidth thereof being variably adjusted, and up-converts the filtered digital modulated signal into an RF modulated signal corresponding to the selected transmission channel.

Abstract: A method of identifying areas for improving radio communications coverage in a mobile radio network under analysis. The method comprises detecting cancel location signalling data, update location signalling data and service signalling data. The cancel location signalling data is generated to cancel a registration of mobile user equipment from a visitor subscriber database of the analyzed mobile radio network. The cancel location signalling data includes mobile subscriber identifiers of the mobile user equipment. The location update signalling data informs the home subscriber database of the home network of the mobile user equipment that the mobile user equipment is to be registered as having roamed to a visitor subscriber database of at least one other mobile network. The location update signalling data includes identifiers of the visitor subscriber database and the mobile subscriber identifier of the user equipment being registered.

Abstract: A portable communication terminal has two chassis and one of the two chassis includes a receiver for outputting voice and a speaker for informing of an incoming call. The terminal includes a detection section for detecting whether the two chassis are overlapped or not and a control section for controlling an operation of the portable communication terminal. A ringtone volume control unit of the control section controls the volume level of the ringtone according to a detection result of the detection section. The terminal can include an operation detection unit for detecting an operation of the receiver and a device detection unit for detecting whether or not the portable communication terminal is connected to another device.

Abstract: In exemplary embodiments of this invention context transfers (static and dynamic) are optimally performed to maintain the same quality of service (QoS) for a Mobile Station (MS) during a CDMA inter-BS hard handoff, as well as during a CDMA inter-BS soft handoff. Context transfers (static and dynamic) are also optimally performed to maintain the same QoS for the MS during a CDMA inter-Packet Control Function (PCF) hard handoff.