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| Number | Title | Issue Date |
| 6507568 | Enhanced access in wireless communication systems under rapidly fluctuating fading conditions A mobile communications system employs extended channel assignment messaging during the call setup portion of a mobile call. As part of the call setup process, a mobile station sends an access request message to a primary base station that includes a list... | 01/14/2003 |
| 6504830 | Method, apparatus, and system for fast base synchronization and sector identification A method, apparatus, and system perform fast sector identification and base station synchronization. The base station transmits information in primary and secondary control channels to the remote station. The remote station performs synchronization using ... | 01/07/2003 |
| 6504837 | Method and system for data transmission with a macrodiversity reception In a method for transmitting data via a radio interface between base stations and subscriber stations in a radio communications system, the time slots in a frame are allocated to different base stations such that the base stations transmit exclusively in ... | 01/07/2003 |
| 6501954 | Mobile radio communication system and radio circuit controlling method therefor A mobile radio communication system which sets a radio circuit efficiently without deteriorating the communication quality even when congestion of communication channels occurs. The mobile radio communication system includes a plurality of mobile stations... | 12/31/2002 |
| 6496707 | System and method for optimizing a wireless network by adaptive configuration of base stations and wireless terminals For use in a wireless network having geographically-distributed base stations that serve wireless terminals, a system for, and method of, improving an operation of the wireless network. In one embodiment, the system includes: (1) a signal quality determin... | 12/17/2002 |
| 6493555 | Method of improving cooperation between entities during call handover A method of improving co-operation between entities in a cellular mobile radio communications network, wherein during inter-cell call handover, a new server cell is chosen from a set of candidate cells as being a candidate cell to which a requested handov... | 12/10/2002 |
| 6487411 | Directed retry for call setup A method for directed retry in a mobile communication system including measuring the reception level of the signal from the neighboring cells of the target cell in the mobile station, sending the measurement results as a report message from the mobile sta... | 11/26/2002 |
| 6487183 | Activity based resource assignment medium access control protocol A method for implementing an activity based resource assignment medium access control (MAC) protocol to allocate resources to subscribers in an interactive, multimedia, broadband satellite communications system. A plurality of channels is provided with at... | 11/26/2002 |
| 6484034 | Radio handset and position location system A radio handset includes: a signal receiver for receiving signals from a plurality of radio stations; a reception timing analyzer for analyzing reception timings of signals received by the signal reception means; a radio station selector for selecting rad... | 11/19/2002 |
| 6473412 | Uncoordinated frequency hopping cellular system An uncoordinated frequency hopping cellular system includes a mobile unit and a number of base stations. The mobile unit determines which base stations are in a geographical location defined by a location of the mobile unit. This determination is made by ... | 10/29/2002 |
| 6466795 | Method for improving resource allocation in a wireless communications system using broadcast resource information A resource allocation request method in a wireless system, including base stations and terminals, includes the steps of: periodically broadcasting resource information, managed by the base stations, to the terminals; receiving and storing the periodically... | 10/15/2002 |
| 6459890 | Watch type portable radiotelephone A watch type portable radiotelephone is disclosed which includes a body element having upper and lower case frames, data input means, an LCD unit for outputting inputted data and displaying a variety of information, an antenna unit electrically connected ... | 10/01/2002 |
| 6438377 | Handover in a mobile communication system The invention relates to a handover method in a mobile communication system where the serving base station measures the level and/or quality of the uplink signal of a mobile station. The base station controller commands neighboring base stations to measur... | 08/20/2002 |
| 6434399 | Method for subscribing telecommunications devices at cooperating stations by wireless telecommunication In order to improve the subscribing of telecommunication devices at cooperating stations connectable to the telecommunication devices by wireless telecommunication in wireless telecommunication systems, particularly DECT mobile parts at DECT base stations... | 08/13/2002 |
| 6430413 | Mobile radio receiver for cellular radio telecommunications systems For mobile radio receivers (MTm) which are used in a cellular radio telecommunications system, in order to allow interruption-free relaying of a telecommunications link, in particular even if stationary radio transmitters (U-BS, H-BS) which are... | 08/06/2002 |
| 6415223 | Interruption-free hand-held positioning method and system thereof An interruption-free hand-held positioning method and system, carried by a person, includes an inertial measurement unit, a north finder, a velocity producer, a positioning assistant, a navigation processor, a wireless communication device, and a display ... | 07/02/2002 |
| 6411819 | Method of modeling a neighbor list for a mobile unit in a CDMA cellular telephone system A computer implemented process which determines those base stations which most probably communicate with a mobile unit, determines a probability for each base station to communicate with a mobile unit at a location based on the actual received signal leve... | 06/25/2002 |
| 6405040 | Implementing and selecting between virtual private wireless telecommunications networks A wireless terminal is disclosed that is capable of establishing a communications channel with either a public wireless network or a private wireless network on existing IS-95 CDMA facilities without changing the air interface or requiring the existence o... | 06/11/2002 |
| 6400941 | Mobile information device capable of obtaining user information relating to local area Each time a mobile terminal enters a service area of an information providing device and its location is registered by the information providing device, the area code and local code of telephone numbers and addresses associated with the service area are s... | 06/04/2002 |
| 6393287 | System for switching speech channel between loosely couple radio base stations Disclosed is a speech channel switching system which has: a radio base station control unit that allows a mobile telephone terminal to have a communication channel through a plurality of radio base station devices; and a radio base station which is provid... | 05/21/2002 |
| 6389285 | Handover determination in a mobile communications system A self-adaptive handover determination device (5) functions by taking into account by how much a handover threshold is exceeded based on a received quality or signal strength measurement. Averaged signal measurements are compared (7) with a first threshol... | 05/14/2002 |
| 6374109 | Wireless communication system and subscriber unit that support selection of operation from multiple frequency bands and multiple protocols and method of operation therefor A wireless communication system facilitates wireless communication with a subscribing unit operating within a respective service area. At least one base station supports wireless communication within the service area in a plurality of frequency bands and ... | 04/16/2002 |
| 6360098 | Method and system for determining a neighbor list for a code division multiple access (CDMA) sector In a code division multiple access (CDMA) radio communications network (20) having a plurality of cells (24) subdivided into sectors (26), a computer based method (36) and a computing system (34) determine a neighbor list (56) for a selected one of the se... | 03/19/2002 |
| 6349200 | Monitoring and command system for transceivers used to inter-connect wireless telephones to a broadband network A monitoring and command system for use in a wireless communications system including remotely located transceivers for transmitting and receiving telephony signals to and from wireless telephones wherein each of the remote transceivers is connected to a ... | 02/19/2002 |
| 6341226 | Mobile communication apparatus and method of receiving mobile communication signals With respect to each of received signals from a plurality of base stations, an average value is calculated by using detected reception energy and reception energy detected in the past to determine a received signal to be demodulated by comparing the avera... | 01/22/2002 |
| 6324406 | Mobile station location determination using radio signal timing values A method for collecting radio signal timing values for use in determining the location of a mobile station in a wireless network. The method includes acquiring a radio signal timing value from the mobile station's serving base transceiver station. A first... | 11/27/2001 |
| 6314286 | Control of telecommunications services for subscriber-provided radio communication devices residing in a miniature cellular environment Telecommunication services are provided to subscriber-provided radiotelephones (50) residing inside an aircraft (20). Telecommunication services are provided while the aircraft (20) is flying and utilize the aircraft's air-to-ground communication system (... | 11/06/2001 |
| 6314304 | Mobile communication system with improved antenna arrangement An improved antenna arrangement for use in a cellular telecommunication system is provided. A plurality of antennas which are connected to a common base station are located on the periphery of a radio zone or cell. Each of the antennas has a directional c... | 11/06/2001 |
| 6311066 | Method and apparatus for performing selection and distribution in a communication system A communication system (100) that includes base stations (103-109) comprising selection circuitry (207) is provided herein. The determination of a call anchoring base station (base station performing Code Division Multiple Access (CDMA) frame selection) i... | 10/30/2001 |
| 6311074 | Base station and method for covering a cell of a cellular mobile radiotelephone system A base station is provided that contains at least one combination means to which at least two base station branches are connected for covering a cell. The transmission quality for a communication connection is monitored for each base station branch and ba... | 10/30/2001 |
| 6304755 | Method and apparatus for performing mobile assisted hard handoff between communication systems A method and apparatus for performing inter-system hard handoff between communication systems or inter-frequency hard handoff within a CDMA communication system is disclosed. The purpose of this invention is to reduce the probability of dropped calls duri... | 10/16/2001 |
| 6295451 | Mobile communication system, base station, and base station controller A control station manages available channel counts in base stations, and notifies each base station of the available channel counts. Each base station compares the priority values of the respective base stations which are obtained by adding the available ... | 09/25/2001 |
| 6295450 | Method and apparatus for transferring communication within a communication system Transferring communication within a communication system (100) occurs as follows: During communication with a serving base station (101), a handover candidate list (110) is provided to the remote unit (113). The list (110) comprises a set of neighboring b... | 09/25/2001 |
| 6292661 | Method of implementing a handover in a cellular radio system The invention relates to a method of implementing a handover in a cellular radio system. The cellular radio system has at least on cell (Cd) which comprises at least two subcells and in which all available frequencies are dynamically used. The cellular ra... | 09/18/2001 |
| 6285668 | Method for improving the selection capability of a TSB in CDMA and PCS systems The present invention provides an enhanced method for initiating the selection of frames arriving from multiple base stations in a mobile communications system during a soft handoff condition. The method includes the steps of determining a number of base ... | 09/04/2001 |
| 6278883 | Communication protocol for a wireless data system A wireless data network provides message control center broadcasting over a paging channel covering a wide service area and base stations distributed in said wide service area providing two-way communication over a local channel in local service areas wit... | 08/21/2001 |
| 6275707 | Method and apparatus for assigning location estimates from a first transceiver to a second transceiver A method and apparatus for assigning location estimates from a first transceiver of a plurality of wireless transceivers to a second transceiver is disclosed. The present invention makes use of a low power short-range auxiliary communication link incorpor... | 08/14/2001 |
| 6266537 | Radio communication system A radio communication system includes a plurality of base stations and a plurality of mobile stations belonging to the service areas covered by the radio zones respectively formed by the base stations and performs data communication by polling. Each base ... | 07/24/2001 |
| 6259921 | Communication routing method by a satellite in a network The present invention relates to a method of routing a call between a first terminal which is a mobile terminal (5) and a second terminal (4) in a global telecommunications network, it being possible for the call to be routed in the global network a)--at ... | 07/10/2001 |
| 6259916 | Method and apparatus for minimizing perceptible impact on an interrupted call prior to hand-off Method and apparatus for reducing the perceptible impact to user traffic during a hand-off process in a full duplex wireless communications system having subscriber units and base stations, the subscriber unit being responsible for locating candidate base... | 07/10/2001 |
