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| Number | Title | Issue Date |
| 7532889 | Hard handover method and radio network controller therefor in a mobile telecommunication system A hard handover method and a Radio Network Controller (RNC) therefor in a mobile telecommunication system are provided which can improve the performance of an interfrequency hard handover. The RNC stores information about a timing difference between first and second... | 05/12/2009 |
| 7532888 | CDMA mobile communication system, base station, mobile station and communication control method during soft handover In a CDMA mobile communication system comprising a plurality of base stations and a mobile station for making possible to communicate with said base stations by a soft handover, forward transmission between the mobile station and a particular base station is carried... | 05/12/2009 |
| 7529547 | Using wake-up receivers for soft hand-off in wireless communications Multiple standards based radio (“SBR”) devices, each having a high-gain directional antenna, are utilized in a remote sensor interface (“RSI”) unit to optimize detection and reception by the RSI of radio signals from gateway controllers, hopping radios, and ... | 05/05/2009 |
| 7502615 | Handoff for cellular and internet protocol telephony A telephone system supports communication with user devices over both a cellular radio network as well as over an Internet Protocol (IP) network, and enables roaming and active call handoff between cellular and IP domains. Components of the system interact with conv... | 03/10/2009 |
| 7486954 | Method of controlling load sharing between in-cell and soft handoff users In the method, rate control for at least one soft handoff user is selectively performed based on a soft handoff loading metric indicative of loading from soft handoff users on the channel. ... | 02/03/2009 |
| 7486953 | Method and system for soft handover Soft handover of a mobile unit is facilitated on a wireless network from base station to base station. The network can employ multi-channel receivers to receive signals from mobile units within range, including mobile units assigned to neighboring base stations. Inf... | 02/03/2009 |
| 7480509 | Handover system and method for minimizing service delay due to pingpong effect in a broadband wireless access communication system In a BWA communication system, an MSS changes its connection from the serving BS to the target BS, and sends the target BS a report indicating that the MSS will change its connection upon detecting occurrence of a pingpong effect in a process of performing a network... | 01/20/2009 |
| 7454210 | Control of radio communication network having plural radio network controllers including an anchor controller A method and system are disclosed for controlling radio communications between a terminal (MS, TE) and a communications system (CN, GRAN). A communications connection between the system and the terminal is established by an active radio network controller (RNC) and ... | 11/18/2008 |
| 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 |
| 7437161 | Method of fast data transmission of mobile stations via the same base station In the method of packet transmission, data packet fragments received from a first mobile station are sent to a second mobile station without assembling and re-fragmenting the received data packet fragments if the first and second mobile stations are in a same cell. | 10/14/2008 |
| 7436803 | Apparatus and method for determining a soft handover in a CDMA mobile communication system A mobile station that determines whether to perform a soft handover in a CDMA mobile communication system and method thereof. The mobile station compares strength of a signal received from a source BTS (Base Transceiver Station) with a prescribed reference value. If... | 10/14/2008 |
| 7437160 | Control of interfrequency handovers A method and a mobile station for controlling interfrequency handovers of the mobile station is provided. The target value for a quality factor of the received downlink signal is used in determining a need for an interfrequency handover. The target value of the hand... | 10/14/2008 |
| 7433690 | Conversion of voice-over-IP media control messaging into mobile control channel signaling using a voice-over IP gateway A gateway serving as an interface between a mobile network and a wireless network can be configured to send a signal strength indicator to the mobile network thereby causing the mobile network to recognize the gateway as a valid path for handing off a call. The wire... | 10/07/2008 |
| 7433337 | Node B and RNC actions during a serving HSDPA cell change A system and method in accordance with the present invention reduce the amount of data that is stalled in a source Node B after a serving HS-DSCH cell change in a communication system that includes a serving RNC and at least one Node B. In a first embodiment, the RN... | 10/07/2008 |
| 7433698 | Cell reselection signalling method The invention relates to methods pertaining to cell reselection in a cellular telecommunication system. According to the invention, a connection setup rejection message is used to direct a mobile communication means to attempt a new connection with certain parameter... | 10/07/2008 |
| 7428416 | Handover in a cellular communication system A cellular communication system includes first and second base stations and a user equipment. A Radio Network Controller controls a handover of the user equipment between the base stations by either forwarding data of the communication to both the first and second b... | 09/23/2008 |
| 7426392 | Search receiver using adaptive detection theresholds A search receiver within a wireless communicator uses an adaptive path detection threshold. By using a continually updated path detection threshold, a communicator may be adapted to the energy of a base station. A search receiver continually updates the path detecti... | 09/16/2008 |
| 7424296 | Method and apparatus for soft handover area detection for uplink interference avoidance A method and system for soft handover detection for uplink interference avoidance that includes a network device and mobile device in a communications network. The mobile device uses a downlink carrier. A parameter, such as a signal strength or a signal quality, of ... | 09/09/2008 |
| 7424297 | Soft handoff system, mobile terminal having the same, and soft handoff method Disclosed are a soft handoff system, a soft handoff method, and a mobile terminal equipped with the soft handoff system. The soft handoff system for a mobile terminal analyzes periodically monitored wireless conditions of neighbor base stations, transmits a PSMM (Pi... | 09/09/2008 |
| 7424295 | Handover control apparatus, base station, edge router, relay router, radio terminal unit, mobile communication system, and handover control method When a radio terminal unit 30 undergoes a handover between base stations 34, 36, a previous edge router 40 having been connected to the radio terminal unit 30, out of edge routers 40, 42 provided in respective base stations 34, ... | 09/09/2008 |
| 7424301 | Method and apparatus for quick paging in a wireless communication system Method and apparatus for pseudo-synchronized paging to a mobile station in a wireless communication system. A number of paging repetitions is assigned, wherein a quick page message is repeatedly sent to a target mobile station for the number of paging repetitions. T... | 09/09/2008 |
| 7418266 | Method for controlling timing in a communications channel A method for controlling the flow of information on a high-speed channel between a UE and a Node B is provided. Timing of the high-speed channel is based on timing associated with a low-speed channel and a time at which a grant signal is received from the Node B. Up... | 08/26/2008 |
| 7409215 | Mobile communication hand-off control system and unit When a first base station serving a mobile communication terminal in a standby mode, a first neighbor list is acquired from the first base station and stored in a memory. If the serving base station is changed in a standby mode from the first base station to a secon... | 08/05/2008 |
| 7408901 | Method and system for predictive handoff of a data session between entities A method and system for managing handoff of a cellular wireless data session between a first wireless coverage area and second wireless coverage area. A first radio network controller (RNC) predicts that handoff of the data session will soon be necessary. Radio reso... | 08/05/2008 |
| 7409216 | Mobile communication controlling apparatus and inter-frequency handover control method A mobile communication controlling apparatus for controlling inter-frequency handover includes a required quality identifying unit configured to identify a quality required for data addressed to a mobile station, a transmission rate control unit configured to contro... | 08/05/2008 |
| 7406324 | System and method for controlling services provided to multi-mode mobile stations A multi-mode mobile station includes a first interface for wireless communication with a wireless local area network (WLAN) and a second interface for wireless communication with a wireless wide area network (WWAN). An internetwork service control system controls ho... | 07/29/2008 |
| 7400602 | Hysteresis methods for an always-on mobile station A system and method of packet zone hysteresis for a mobile station is presented. When a short data burst is to be sent on the control channel, a check is made to see if packet zone hysteresis might have caused the PCF-PSDN interface to be torn down, and if necessary... | 07/15/2008 |
| 7398088 | Handover method and apparatus A method (FIG. 11) and corresponding wireless communication unit (102, FIG. 5) and mobility manager (116, FIG. 6) for facilitating a handover from one communication network (106) to another communication network (108)... | 07/08/2008 |
| 7398091 | Method and apparatus for providing a multimedia broadcast/multicast service in a visited network A communication system provides a Multimedia Broadcast/Multicast Service (MBMS) to a roaming user equipment (UE) by receiving, at a first network, a request from the UE to subscribe to an MBMS service and, in response to receiving the request, conveying to the UE a ... | 07/08/2008 |
| 7394790 | Packet data transmitting method and mobile communication system using the same A packet data transmitting method and mobile communication system using the same enables transmission of common ACK/NACK information from each sector of a base station to a user entity in softer handover. The method includes receiving via at least one of the plurali... | 07/01/2008 |
| 7394789 | Handoff control method, base station controller, and base transceiver subsystem When an access terminal is handed off, requested-data-rate information based on a data rate control signal from each access terminal, average throughput of each access terminal before handoff, and a handoff request count are obtained from a base transceiver subsyste... | 07/01/2008 |
| 7395066 | Method, system and device for improving performance during cell change The invention discloses a communication system, method and devices for controlling transmission of packets to a user equipment during cell change. The communication system is configured so that data to be transmitted to the user equipment are first transmitted, e.g.... | 07/01/2008 |
| 7392052 | Hard handover method and controller The invention is related to a controller of a communication system that includes a module for exchanging messages indicating a traffic channel change between communication system units before hard handover, a module for changing a downlink traffic channel, a module ... | 06/24/2008 |
| 7389111 | Adaptive determination of hysteresis for facilitating base station selection, including handover, in a wireless communication system The present invention provides method and apparatus for facilitating base station selection/handover by a user terminal in a distributed (e.g., cellular-type) wireless communication system. In accordance with one aspect, hysteresis is adaptively determined as a func... | 06/17/2008 |
| 7386306 | Multi-carrier communications methods and apparatus Methods and apparatus for implementing a multi-carrier communications system are described. Various approaches to a phased system deployment and system configurations resulting from different levels of deployment are described. In addition mobile node and methods of... | 06/10/2008 |
| 7379736 | Method and device for selectively controlling network selection in an area covered by at least two mobile communication networks The invention relates to methods and systems for selectively controlling network selection in an area covered by at least two mobile communication networks. According to the first method, the area which is to be covered is divided up into zones and a specific code i... | 05/27/2008 |
| 7379746 | Method for transmitting power control information for HS-SCCH in mobile communication system A method for controlling transmission power of shared control channel for high speed downlink shared channel (HS-SCCH) in an UMTS system adopting a high speed downlink packet access (HSDPA) is disclosed in which a power offset value for power control of HS-SCCH is d... | 05/27/2008 |
| 7379750 | Communications handoff using an adaptive antenna One implementation provides a novel station-to-station handoff using an adaptive or directional antenna. The directional antenna generates a plurality of directional search beams to search for pilot signals from new base stations. The search beams are scanned one be... | 05/27/2008 |
