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| Number | Title | Issue Date |
| 7519368 | System and method for performing network re-entry in a communication system In a communication system, a mobile station (MS) sends a target base station (BS) a notification indicating that it is to perform a handover from a serving BS to the target BS. The target BS transmits to the MS handover process optimization information indicating a ... | 04/14/2009 |
| 7515909 | Wireless handoffs between multiple networks The disclosure is directed to a mobile communication device, and method for handing off a mobile communications device between two networks. A processor in the mobile device may be used to establish a network connection with a server in a first network while support... | 04/07/2009 |
| 7515910 | Cellular/WLAN hybrid-terminal handover techniques Real-time handover decision techniques are provided which can utilize prior known system behavior in making a handover decision to avoid averaging delay and hysteresis delay. ... | 04/07/2009 |
| 7509126 | Method and system for mobile station handovers with different priorities in wireless networks A method and system for processing a handover request in a wireless network. The method includes receiving a first message from a first base station by a mobile station. The first message includes a handover request, the handover request includes a priority indicato... | 03/24/2009 |
| 7505770 | Mobile communication method and mobile communication apparatus A mobile communication apparatus includes a registration request part (47) requesting a correspondent node to make location registration, a BU list memory (45) keeping a list of the correspondent nodes which have made the location registration, a hando... | 03/17/2009 |
| 7502614 | Radio communication system, radio communication apparatus and radio communication method, and computer program A radio communication network that requires no connection between base stations during handoff or when the cell is overloaded, is realized by using a receiver that has a multi-user detection function and a transmitter for synthesizing control information and user da... | 03/10/2009 |
| 7499705 | Handover in a hybrid communications network An apparatus and method of effecting hand-off of a mobile station in a first wireless communication system, which has a first mobile switching node operable with a first base station and a second mobile switching node operable with a second base station, and a secon... | 03/03/2009 |
| 7496364 | Media-independent handover (MIH) method featuring a simplified beacon A method for implementing a Media Independent Handover (MIH) service between one or more of a heterogeneous and a non-heterogeneous network comprises providing an MIH beacon from one or more of a network (Net) or a mobile node (MN); acknowledging a receipt of the MI... | 02/24/2009 |
| 7496363 | Method of changing access point for a mobile node in a wireless access network Changing access points for a mobile node (106) in a wireless access network (100), for example a wireless local area network (WLAN), includes the mobile node (106) communicating content data on an initial channel (214) via an initial acce... | 02/24/2009 |
| 7493119 | Distributed radio units A method in a communication system comprising a access network with Radio Network controllers (RNC) and radio base stations (RBS or Node B) consisting of main units (MU) which performs base band signal processing and one or more radio remote units (RRUs) which conve... | 02/17/2009 |
| 7493120 | Method and apparatus for generating handover neighbor list in a cellular mobile communication system A method and apparatus for generating a handover neighbor list of base stations capable of communicating with a mobile terminal in a cellular mobile communication system. A UMTS RAN manager (URM) collects handover attempt count and handover ratio data as handover st... | 02/17/2009 |
| 7489929 | Hard handoff procedure for dedicated and high speed shared channels A wireless communication network (20) utilizes a hard handoff procedure for switching between cells serving a mobile station (40). In a disclosed example, the existing link between the mobile station (40) and a serving base station (38) i... | 02/10/2009 |
| 7486952 | Facilitated security for handoff in wireless communications A first base station which initially receives a service request from a wireless terminal requests authentication information from a central security node and receives in response at least, one, but typically two or more, sets of security information. When it is time... | 02/03/2009 |
| 7483701 | System and method for handling media in a seamless handoff environment A method for handling media in a make-before-break handoff between wireless networks is provided that includes communicating with a mobile station to facilitate a session handoff between two call legs of a session. The method also includes identifying a relevant fra... | 01/27/2009 |
| 7477896 | Reducing missed pages during cell reselection in a wireless communication system Techniques are provided for reducing the likelihood of missed pages during cell reselection. For cell reselection with early camping, a terminal determines that reselection from a first base station to a second base station is required. The terminal then performs ce... | 01/13/2009 |
| 7477897 | Method for handoff of a telephone call between two different wireless networks A system and method with which to establish parallel communications between the wireless terminal and the PSTN via a WLAN and an alternative network such as cellular or satellite networks. Once the parallel communications are established, handoff criteria govern sea... | 01/13/2009 |
| 7477898 | Hand-off control method and wireless communication apparatus using the method The 1× wireless processing section communicates with the 1× base station while the EV-DO wireless processing section performs processing for communicating with the EV-DO base station. The measurement section measures strength of signals received from a plurality o... | 01/13/2009 |
| 7471950 | Base station controlled vertical handoff in a hybrid wireless communication system Base station controlled vertical handoff is disclosed. When a hybrid access terminal is operating under a first air interface protocol (e.g., IS-2000), in a mode (e.g., active) in which the terminal does not search for the presence of wireless service under a second... | 12/30/2008 |
| 7469142 | Method and apparatus for inter-cell handover in wireless networks using multiple protocols A communication system formed by a private wireless network that can be used with public wireless networks using a public wireless protocol, such as GSM, and typically includes public networks, such as PSTN, ISDN and the Internet, using a wired-packet protocol, such... | 12/23/2008 |
| 7460869 | Adaptive handover measurement interval Apparatus and methods are provided for adaptively determining a handover measurement interval. Power savings are achieved when a mobile terminal in a digital broadcast broadband network does not constantly attempt to measure the signal strength of nearby cells. By d... | 12/02/2008 |
| 7450943 | Method and apparatus for determining coverage and switching between overlay communication systems Techniques to determine whether or not a terminal is under the coverage of a current wireless communication system (e.g., a packet data system) and to switch from the current system to another wireless communication system (e.g., a voice/data system). In one method,... | 11/11/2008 |
| 7450944 | Method and apparatus for base station synchronization An apparatus and method for monitoring (310) at least one factor relating to a wireless communication system (100) is provided such that a synchronization signal is sent (320) to at least one base transceiver station (130) neighboring a p... | 11/11/2008 |
| 7444151 | Method and system for providing supplementary services for a wireless access network A method and system for providing supplementary services for a wireless access network includes downloading supplementary service triggers from a call agent to a mobility control function (MCF) for a wireless access network. Wireless-specific signaling of the wirele... | 10/28/2008 |
| 7444150 | Cell reselection with power scan and parallel decoding Upon power on, a terminal performs cell selection, finds the most suitable cell to receive communication service, and camps on this cell (the serving cell). The terminal thereafter performs “C2-based” cell reselection if a better cell is found, “non-C2 based... | 10/28/2008 |
| 7443819 | Managing scrambling codes during serving radio network subsystem relocation The present invention provides a method and an apparatus for managing relocation of one or more scrambling codes in a spread spectrum wireless communications system. The method comprises detecting an indication for a serving radio network subsystem relocation that c... | 10/28/2008 |
| 7443881 | Method and apparatus for interfacing synchronous core network with asynchronous radio network A method and apparatus for interfacing a synchronous core network with an asynchronous radio network in a next-generation mobile telecommunications system is disclosed. The method for mapping a message in order to interface a synchronous core network with an asynchr... | 10/28/2008 |
| 7444142 | Apparatus and method for implementing system information acquisition in universal mobile telecommunications system user equipment In a mobile telecommunications system comprising a network of a plurality of cells and at least one user equipment device, the method comprises, in the user equipment device, when the user equipment has system information stored in the user equipment device, which s... | 10/28/2008 |
| 7443817 | Automatic wireless connection selection The present invention relates to wireless communications systems, and in particular the selection of one or more available wireless connections suitable for use with a desired service or set of services. The present invention provides a method of and apparatus for s... | 10/28/2008 |
| 7444149 | Proactive deployment of decision mechanisms for optimal handover To achieve optimal selection of new access points for mobile devices (10) being located in a mobile communication environment (14), according to the present invention there is provided a method of assisting handovers for a mobile device in a mobile com... | 10/28/2008 |
| 7440753 | Communication network switching system and method thereof A communication network switch system, comprising: a first phone number database accessed by a cable telephony network service provider; a second phone number database accessed by an internet service provider; a plurality of communication network switch devices cond... | 10/21/2008 |
| 7440755 | System and method for locating a wireless local area network A system and method for finding a wireless local area network, WLAN, when a mobile terminal is connected to a cellular network. A position associated with each WLAN operating within the coverage area of the cellular network is stored in a database. At predefined int... | 10/21/2008 |
| 7440399 | Apparatus and method for efficient transmission of acknowledgments Method and apparatus for transmission of information in multiple access communication system is described. Information from a plurality of access terminals is received. Alternatively, an access terminal determines what information needs to be sent to the access poin... | 10/21/2008 |
| 7440756 | Controlling micro-roaming in a wireless LAN The present invention detects a micro-roaming client in a WLAN. Once a micro-roaming client is detected, APs coordinate with each other and assign the client to a specific AP. In an embodiment, a user-configurable anchor timer for micro-roaming clients is provided, ... | 10/21/2008 |
| 7440757 | Handover method in a wireless communication system A handover method in a wireless communication system is disclosed. A serving base station transmits a handover request message to a base station controller in response to a handover request of a mobile station. The base station controller determines target base stat... | 10/21/2008 |
| 7440429 | Method and system for re-establishing context of data packet flows The present invention relates to a system, a Midcom Agent, a method for re-establishing context and a computer program product for performing the steps of said method. In a multi-domain, multi-access IP network there is a need for a method to re-establish context as... | 10/21/2008 |
| 7437152 | Control method of searching neighboring cells, mobile station, and mobile, communication system A control method of searching for a neighboring cell of a mobile station communicating with a base-station is provided in a direct sequence CDMA mobile communication system which transmits information by carrying out double modulation using a first spreading code gr... | 10/14/2008 |
| 7437156 | Mobile communication system and base station in the mobile communication system for saving power consumption of mobile station A mobile communication system is provided for decreasing power consumption in a mobile station. In the mobile communication system, a base station or a radio network control apparatus sets a threshold of signal energy to noise power density ratio of a common pilot s... | 10/14/2008 |
| 7436807 | Communication network A network for communicating with a plurality of radiotelephones via respective communication channels over timeslots on a carrier, wherein the channels can operate at a first or second data rate such that a timeslot on the carrier can transmit a single communication... | 10/14/2008 |
| 7437159 | Method and system for overcoming pilot pollution in a wireless communications network An apparatus and method for overcoming pilot pollution in a wireless communications network. The apparatus boosts a preferred pilot signal within a geographical area that is suffering from pilot pollution. The boosted pilot signal is stronger than the pollution in t... | 10/14/2008 |
| 7436796 | Mobile-unit-dedicated data delivery assistance method Contents delivery to a mobile node which changes its existence position is executed from a delivery node with a high quality. Each cache server is located between each wireless LAN in which the mobile node can exists and a wired network. Each cache server delivers c... | 10/14/2008 |
