Channel Seizing Patents (Class 455/455)
  • Patent number: 7130638
    Abstract: In a radio resource allocation method of the present invention, use-state information of radio resources and priority information of mobile stations using the same radio resources of both a base station of concern and neighboring base stations is detected at the base station of concern. A new radio resource is allocated to a link between the base station of concern and a requesting mobile station in a cell site of the base station of concern based on the use-state information and the priority information of both the base station and the neighboring base stations.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: October 31, 2006
    Assignee: NTT DoCoMo, Inc.
    Inventors: Lan Chen, Narumi Umeda, Yasushi Yamao
  • Patent number: 7130388
    Abstract: An apparatus and method are provided for easily indicating to a user that a communication has been received for him or her. A portable message waiting indication device (MWID) includes a power source (e.g., battery), signal receiver and a visual and/or audible indicator. The indicator is activated in response to receipt of a first wireless signal at the receiver. In response to a second signal the indicator is deactivated. A MWID may also include a user-actuable switch or sensor to deactivate the indicator. In one method of using a MWID to inform a user that a communication has been received, the user registers the MWID and may identify when the MWID indicator should be activated (e.g., for certain types of messages (e.g., voice-mail, electronic mail), certain senders, a category of senders, time of day, message priority). Multiple MWIDs may be configured and employed by a user, and each may be configured similarly or differently.
    Type: Grant
    Filed: January 11, 2001
    Date of Patent: October 31, 2006
    Assignee: America Online, Inc.
    Inventor: Ian Andrew Bell
  • Patent number: 7127262
    Abstract: The document specifies a method for determining field strength which can be used in mobile radio systems, such as Bluetooth. The principle proposed involves alternate transmission and reception in the mobile radio system, with each timeslot comprising at least one time interval for transmitting/receiving a data block (RX, TX). The reception field strength (RSSI) is measured directly before (A, B) or directly after (C, D) transmission or reception of the data block (RX, TX). This allows the number of locking operations required in a PLL to be reduced and still allows adaptive channel adjustment to be performed, for example in a “frequency hopping method”, by measuring all channels without reducing the net data rate.
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: October 24, 2006
    Assignee: Infineon Technologies AG
    Inventors: Markus Hammes, Britta Felbecker, Roland Hellfajer
  • Patent number: 7123920
    Abstract: In a technique for setting up calls in IP mobile networks, when an application level in a mobile station sends a setup message to set up a multimedia call, before sending such a message over the radio interface, the mobile station performs the appropriate procedures to setup the appropriate bearers over the radio interface and in the network to satisfy the call requirements specified by the application level in the setup message. The technique applies to both mobile originated calls and mobile terminated calls, the called mobile station performing the transport level procedures after having received a setup message and before sending a confirmation/call acceptance message back to the calling party. Furthermore, the allocation of radio resources for PDP contexts that will be used to carry the media of a multimedia IP called is delayed so that no radio resources are allocated to the PDP contexts activated before the call control signaling is exchanged.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: October 17, 2006
    Assignee: Nokia Corporation
    Inventors: Stefano Faccin, Yousuf Saifullah, Srinivas Sreemanthula, Tuija Hurtta, Nedko Ivanov, Balazs Bertenyi
  • Patent number: 7120467
    Abstract: A base station is configured to transmit a downlink signal to a mobile station located in a sector managed by the base station. The downlink signal is spread using a scrambling code. The base station has a monitor configured to monitor a change of a reception condition of an uplink common channel of the mobile station in the sector, a DOA estimator configured to estimate a direction of arrival of an uplink signal transmitted from the mobile station, in response to the change, an area border setter configured to separate the sector into a plurality of areas, by setting an area border in the sector in accordance with the estimated direction, a scrambling code assigner configured to assign a different scrambling code to each of the separated areas and a spreader configured to spread the downlink signal using the assigned scrambling code in each of the separated areas.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: October 10, 2006
    Assignee: NTT DoCoMo, Inc.
    Inventors: Anil Umesh, Koichi Okawa, Shinya Tanaka, Takehiro Nakamura
  • Patent number: 7120443
    Abstract: A method and apparatus for a communication system provide for fast link setup for a mobile station by transmitting a request message, transmitting an assignment message from the base station to the mobile station, and transmitting a notification message from the base station to a base station controller. The mobile station transmits an indication message to the base station controller indicating a successful completion of acquiring the data packet channel. The base station controller processes the indication message for message integrity and security feature. A portion of the available communication resources at the base station is allocated for an immediate response to the request message for acquiring a data packet channel.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: October 10, 2006
    Assignee: Qualcomm Incorporated
    Inventors: Durga Prasad Malladi, Francesco Grilli, Serge Willenegger
  • Patent number: 7116979
    Abstract: The performance and ease of management of wireless communications environments is improved by a mechanism that enables access points (APs) to perform automatic channel selection. A wireless network can therefore include multiple APs, each of which will automatically choose a channel such that channel usage is optimized. Furthermore, APs can perform automatic power adjustment so that multiple APs can operate on the same channel while minimizing interference with each other. Wireless stations are load balanced across APs so that user bandwidth is optimized. A movement detection scheme provides seamless roaming of stations between APs.
    Type: Grant
    Filed: February 18, 2004
    Date of Patent: October 3, 2006
    Assignee: Autocell Laboratories, Inc
    Inventors: Floyd Backes, Gary Vacon, Paul Callahan, William Hawe
  • Patent number: 7116938
    Abstract: Methods and apparatus are disclosed for mitigating radio frequency interference between transceiver systems within an electronic device.
    Type: Grant
    Filed: December 26, 2002
    Date of Patent: October 3, 2006
    Assignee: Intel Corporation
    Inventors: Robert L. Monroe, Randolph L. Durrant, Krishnan Rajamani, Gordon Chinn, James P. Kardach
  • Patent number: 7113792
    Abstract: A method for localizing a mobile station, which in one embodiment is characterized by logging one or more wireless channels which belong to one or more network providers other than the mobile station's home network provider and which substantially currently provide communication with one or more discernable base stations; and establishing a geographic position of the mobile station by use of the one or more wireless channels which belong to the one or more network providers other than the mobile station's home network provider. In one or more various embodiments, related systems include but are not limited to circuitry and/or programming for effecting the foregoing-referenced method embodiment, the circuitry and/or programming can be virtually any combination of hardware, software, and/or firmware configured to effect to foregoing-referenced method embodiment depending upon the design choices of the system designer.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: September 26, 2006
    Assignee: QUALCOMM Incorporated
    Inventors: Serguei Glazko, Sanjay K. Jha, Paul Jacobs
  • Patent number: 7106848
    Abstract: The present invention is a method and system for transferring calls among communicating devices connected through a public network. The service is offered by a public network to permit a party in a ongoing conversation to transfer a call to another communicating device that may be more convenient to use, such as from a mobile telephone experiencing static to a land-based telephone, or from a home telephone to a mobile phone as a party leaves the home. In a method according to the invention, the network first establishes a connection between two communicating parties. The network then receives from one of the parties a request to transfer the call to another communications device. The network then transfers the call. The invention may be entirely network-based, in which case there may be a database of transferee devices stored on the network.
    Type: Grant
    Filed: June 7, 2002
    Date of Patent: September 12, 2006
    Assignee: AT&T Corp.
    Inventors: Jacqueline M Barlow, David S Barlow
  • Patent number: 7096026
    Abstract: The need for reducing the time required for call setup in a wireless communication system (100) is addressed herein. A base station (BS 104) sends a channel assignment message to a mobile station (MS 102) and performs traffic channel initialization procedures with the MS. After completing the traffic channel initialization procedures, the BS sends a base station acknowledgment message to the MS and proceeds to transmit signaling to the MS without waiting to receive an MS acknowledgment in response to the base station acknowledgment message. Thus, the time normally taken to receive the MS acknowledgment is saved and call setup time reduced.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: August 22, 2006
    Assignee: Motorola, Inc.
    Inventors: Dean E. Thorson, Takeshi Morishima, Samer A. Nabulsi, Anal R. Shah
  • Patent number: 7096025
    Abstract: A communication device (105,200) includes a cordless telephone (205) and a two way radio (210). The communication device (105,200) is adapted to place an active cordless telephone call in a low frequency mode in response to receiving an incoming two way radio communication. The communication device (105,200) is adapted to then establish communication within the two way radio communication. The communication device (105,200) periodically re-establishes the cordless telephone call to maintain communication with a cordless base station (120) until the two way radio communication is completed.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: August 22, 2006
    Assignee: Motorola, Inc.
    Inventors: Wayne M. Phang, Branko Avanic, Hiep T. Dang, Joseph J. Medvid, Dang N Vu, Kevin D. Walkup
  • Patent number: 7092720
    Abstract: A method for characterizing base station processing and memory capabilities in a wireless communications system enables resource allocation to take these capabilities into account and to make allocations that avoid base station overload. A method for allocating resources in a wireless communication system including a base station and a radio network controller (RNC) begins by receiving an allocation request for a new service at the RNC. A set of resources is selected by the RNC to allocate to the new service, taking into account the capabilities of the base station. The allocation request is executed by the RNC if a set of resources can be found that does not exceed the capabilities of the base station.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: August 15, 2006
    Assignee: InterDigital Technology Corp.
    Inventors: Janet Stern-Berkowitz, Ana Lucia Iacono, Ryan Eric Drummond
  • Patent number: 7092721
    Abstract: A method (600) and apparatus (700) for reducing delay associated with a call set-up for a call between an originating communication unit (120) and a target communication unit (121–124) in a radio access system (RAS) (101) is described. A call is initiated with a target communication unit prior to a channel assignment. A first latency (411) between an initiation time and a time when the target is capable of receiving a notification of the call on a first channel (410) is estimated and a second latency (421) between the initiation time and a second time when the target is capable of receiving the notification on a second channel (420) is estimated. Addresses associated with the target can be sent to the radio access system on the first channel or the second channel based on the estimated first latency and the estimated second latency.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: August 15, 2006
    Assignee: Motorola, Inc.
    Inventors: John M. Harris, Ronald T. Crocker
  • Patent number: 7089033
    Abstract: A transceiver capable of handling both UWB and narrowband calls includes a mechanism for detecting when a signal from one of the narrowband systems will interfere the UWB communication and switching the UWB data connection link to the alternative data path.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: August 8, 2006
    Assignee: Nokia Corporation
    Inventors: Marko E Leinonen, Kari Moilanen, Jukka M Kansanaho
  • Patent number: 7085573
    Abstract: A receiving device in a trunked radio communications system requests a voice channel for a communication and receives an outbound signaling message on a control channel comprising a voice channel number for the receiving device to utilize for the communication. The receiving device tunes to about a transmit frequency, wherein the transmit frequency is determined by multiplying the voice channel number by a channel spacing and adding a base frequency to yield the transmit frequency, if the voice channel number is between 0 and 119. The receiving device modulates the communication to about the transmit frequency and transmits the modulated communication with a transmit deviation that relates to a maximum of 4 kHz.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: August 1, 2006
    Assignee: Motorola, Inc.
    Inventors: Tanhoa Trandai, Daniel J. McDonald, Christopher H. Wilson
  • Patent number: 7085543
    Abstract: The present invention teaches that a small standardized plate may be affixed to a cellular telephone or item of office equipment. The plate has a first fastener portion. The base unit of a wireless headset and base unit device is equipped with a second fastener portion which cooperates with the first fastener portion on the plate to secure the base unit to the plate and thus to the cellular telephone or office equipment. The plate may be permanently affixed to the surface of the telephone or other item by such means as adhesives, because when it is necessary to remove the base unit from the surface, it may be unfastened from the plate, leaving the plate in place. The fasteners used may be metal snaps, plastic snaps, hooks, clasps, clips, fabric hooks, magnets, latches and combinations thereof. In alternative embodiments, there may be extra fasteners.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: August 1, 2006
    Inventor: Shary Nassimi
  • Patent number: 7076256
    Abstract: A cellular telephone for use with a cellular telephone network includes a GPS receiver section. Position determination related information is transmitted to and from the cellular telephone using a control channel.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: July 11, 2006
    Assignee: SiRF Technology, Inc.
    Inventors: Anthony J. Orler, Ashutosh Pande
  • Patent number: 7076258
    Abstract: A system controlling the traffic balance between the paging of incoming calls and a location registration and including a plurality of base and mobile stations and a management server for location information of each mobile station. A set of cells formed by the base stations constitutes a first area group. Each mobile station shifts to a mode periodically receiving signals from the base stations if no signals are transmitted and received for a predetermine period. Each base station forms second to n-th area groups (n?2), each having an area smaller than that of the first area, to be used when the mobile stations are in idle state. Each mobile station selects the area group to register according to the period in which no packet is received and transmitted, and registers its location while specifying an area within this area group with respect to the server.
    Type: Grant
    Filed: September 9, 2002
    Date of Patent: July 11, 2006
    Assignee: NTT DoCoMo, Inc.
    Inventors: Masayuki Motegi, Hidetoshi Kayama, Narumi Umeda
  • Patent number: 7076253
    Abstract: According to a disclosed embodiment, a processor is configured to detect when a wireless mobile unit is in an High Data Rate (HDR) area. The processor is further configured to determine a need for exchanging data between the wireless mobile unit and a base station. The processor invokes a data burst optimizer to exchange data between the wireless mobile unit and the base station when the wireless mobile unit is in the HDR area. The data burst optimizer is configured to exchange data between the wireless mobile unit and the base station in an HDR area. The data burst optimizer is further configured to continuously detect when the wireless mobile unit is in the HDR area. The data burst optimizer is configured to stop exchanging data between the wireless mobile unit and the base station when the wireless mobile unit is not in the HDR area.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: July 11, 2006
    Assignee: Qualcomm, Inc.
    Inventor: Ellis T. Fisher
  • Patent number: 7072677
    Abstract: Disclosed is a method of operating searchers, and setting a search information list and searching channels for the same. In a communication system, a method of searching channels, comprises the steps of generating a queue of priorities for each search mode, allocating to searchers search items having higher priorities based on the queue, and searching the search items by the allocated searchers.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: July 4, 2006
    Assignee: LG Electronics Inc.
    Inventors: Jong Heon Kim, In Jeong Oh
  • Patent number: 7072641
    Abstract: A method and system is disclosed for reactively managing dropped calls in a wireless communication system. A mobile station determines that it has experienced a dropped call. In response, the mobile station allows a user to continue communicating, such as by recording the user's speech, for instance. The mobile station may then play out the recorded speech to the user or to another call participant, such as upon reestablishment of the call.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: July 4, 2006
    Assignee: Sprint Spectrum L.P.
    Inventor: Durga Prasad Satapathy
  • Patent number: 7069057
    Abstract: There is disclosed a cellular phone in which communication of information for a call including a voice is carried out in a communication section for the call, and communication of information which is different from the call information and which includes an image to be displayed is carried out in a communication section for information. A first display section in which the information for the call is displayed, and a second display section in which details of the information including the image to be displayed are enlarged and displayed are disposed in a cellular phone main body. An attachable/detachable operation key for inputting characters or instruction information is disposed so that the key can be attached/detached with respect to the cellular phone main body. The information is transmitted/received between the attachable/detachable operation key and the cellular phone main body by cable or by radio.
    Type: Grant
    Filed: August 13, 2003
    Date of Patent: June 27, 2006
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Junichi Ishibashi, Yutaka Adachi, Hiroyoshi Kobayashi, Masatoshi Homan, Toshihiro Kitahara, Yoichi Iba, Hisanori Tetsuka
  • Patent number: 7065059
    Abstract: A technique restores adjacencies between a non-stop forwarding (NSF) router and its neighboring routers during reload of routing protocol software on the NSF router within a computer network. When a new instance of the routing protocol software is re-loaded, each interface of the NSF router is placed in a special state that enables it to receive incoming Hello packets from its neighboring routers. When placed in the special state, the interface passively “listens” for incoming Hello packets from the neighbors to determine which neighbors send the packets. The router thereafter promptly creates and sends a unicast Hello packet to each neighbor from whom it has received an incoming Hello packet and creates associated neighbor data structures.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: June 20, 2006
    Assignee: Cisco Technology, Inc.
    Inventor: Alexey Dimitrievich Zinin
  • Patent number: 7054661
    Abstract: The present invention provides a system and method for migrating a control of a wireless communication service provided to a mobile station (MS) in a first network depending on a first technology to a second network depending on a second technology. When receiving a request for the wireless communication service in the first network by a mobile switch center (MSC), at least one instruction is obtained to grant or deny the wireless communication service from a first control device in the second network, the first control device providing the instruction based on its communication to a management subsystem for the control of the wireless communication service. If the wireless communication service is granted, a second control device in the first network controlled by the first control device allows the MS to execute the wireless communication service with a receiver.
    Type: Grant
    Filed: August 8, 2001
    Date of Patent: May 30, 2006
    Assignee: Alcatel Wireless, Inc.
    Inventors: Pardeep Kohli, Seshagiri R. Madhavapeddy, Jianming Xu, Ghassan Naim
  • Patent number: 7054636
    Abstract: Methods and systems are provided for communicating data from wireline terminals to mobile terminals in a telecommunications network, which includes a home node associated with the mobile terminal and one or more visited nodes. To establish communication with a mobile terminal, a wireline terminal sends data to a server in the telecommunications network. The server identifies a mobile identification number associated with the mobile terminal, and based on the identified mobile identification number, the server determines a route that excludes the home node when the mobile terminal is out of the geographical area served by the home node. The server then establishes via the determined route a connection to the mobile terminal and sends to the mobile terminal the data received from the wireline terminal.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: May 30, 2006
    Assignee: GTE Wireless Services Corporation
    Inventor: Walter Wesley Howe
  • Patent number: 7050819
    Abstract: A mesh network mobile unit includes a communications arrangement operable to provide two-way communication between the unit and a mesh network and a regeneration arrangement operable to receive and retransmit signals between other mesh network mobile units and the mesh network. The unit also includes a power receiving arrangement operable to receive power from a power source, wherein the power source is selected from either an internal power source or an external power source and a power utilization arrangement operable to alternatively enable or disable the regeneration arrangement depending upon the selected power source. Embodiments of the invention also include a positioning system that determines the physical location of the mobile unit and uses the information to route signals to the unit.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: May 23, 2006
    Assignee: Qwest Communications International Inc.
    Inventors: Thomas Schwengler, Patrick L. Perini, Brian Arend
  • Patent number: 7047018
    Abstract: The invention relates to a radio telecommunication system comprising means (508) for determining a bit rate increase in a cell on the basis of capacity requests, means (508) for estimating the increase of transmission power caused by the capacity increase, means (508, 518) for determining the cell power on the basis of the current cell power and the estimated power increase, means (508, 518) for estimating the increase of the transmission power needed in the neighbouring cells caused by the capacity growth in the current cell, means (508) for limiting the resource allocation in the cell requesting capacity.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: May 16, 2006
    Assignee: Nokia Corporation
    Inventor: Theodore Buot
  • Patent number: 7047026
    Abstract: A controller component of one embodiment of a system assigns a first number to a mobile station that upon location of the mobile station at a first location allows connection to the mobile station of a call that employs the first number. A controller component of the system assigns a second number to the mobile station that upon location of the mobile station at a second location allows connection to the mobile station of a call that employs the second number. The second number differs from the first number. The second location differs from the first location. In another embodiment, a controller component of a system assigns to a mobile station a number that upon location of the mobile station at any one or more of a temporary user zone and a base user zone allows connection to the mobile station of a call that employs the number. A controller component of the system selects the number to comprise fewer than seven digits.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: May 16, 2006
    Assignee: Lucent Technologies Inc.
    Inventors: Bijan Farhang, John J. MacNamara
  • Patent number: 7039417
    Abstract: A process, system, and apparatus are disclosed for mitigating access point data rate degradation with respect to a wireless communication between a wireless access point and a wireless client device. A channel assessment module is configured to assess the wireless communications, including interference signals, present on available wireless communications channels. The channel assessment module may establish quality parameters that at least partially describe the wireless communications quality of a given channel. A channel selection module is configured to select a best wireless communications channel based on the communications channel assessment. A channel connection module is configured to facilitate wireless communication between the wireless access point and the wireless client device on the best wireless communications channel.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: May 2, 2006
    Assignee: Lenovo Pte Ltd
    Inventors: Ruthie D. Lyle, Jamel Pleasant Lynch, Jr., Scott W. Reid, William Vigilante, Jr.
  • Patent number: 7031720
    Abstract: In mobile communication and radio systems there is a pre-emptive bandwidth allocation by dynamic partitioning the total spectrum available to allow mobile user groups with high priority services to access greater amounts of bandwidth than mobile user groups with lower priority services when the network is overloaded.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: April 18, 2006
    Assignee: Kings College London
    Inventors: Don Dilshan Weerakoon, Abdol Hamid Aghvami
  • Patent number: 7013146
    Abstract: The present invention provides a method to enhance the RACH message transmission of a wireless communication systems. Therefore the known RACH procedure for uplink transmission is extended by additional steps in order to allow the usage of adaptive transmission parameters for uplink transmissions, preferably the usage of adaptive modulation and coding (AMC). This is advantageous because studies in high-speed downlink packet access show the possibility to increase the data rate of a downlink shared channel. The method according to the invention introduces a new RACH message preamble and enables the base station to estimate suitable adaptive transmission parameters like an AMC setting according to the current transmission conditions which are used during the RACH message transmission.
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: March 14, 2006
    Assignee: Nokia Corporation
    Inventors: Yan Wang, Suli Zhao, Hao Guan
  • Patent number: 7006817
    Abstract: The present invention provides a method, apparatus, and computer implemented instructions for mitigating the mobile phone nuisance factor. The present invention causes a mobile phone to activate an “In-Public-Use” profile when in a public establishment, which has a policy for mobile phone usage. A transmitter in the public establishment broadcasts an external control signal that contains an encoded command. The circuitry, or processor instructions, in a mobile phone decodes the command and activates the profile with the identified settings from the command. When the profile is activated, an icon is displayed indicating that the profile is active. Additionally, the “In-Public-Use” profile is deactivated when the mobile phone leaves the range of the signal and the previous settings of the mobile phone are enabled.
    Type: Grant
    Filed: November 15, 2001
    Date of Patent: February 28, 2006
    Assignee: International Business Machines Corporation
    Inventors: Faisal M. Awada, Joe Nathan Brown, Victor Espinoza, Jr.
  • Patent number: 6999773
    Abstract: A communication system assigns a combination of values of multiple combinations of values to a first control channel parameter and a second control channel parameter. Based on the values assigned to the first and/or second control channel parameters, repeat periods corresponding to each of a first, second, and third control messages are determined. New combinations of values of the multiple combinations of values are then assigned to the first and second control channel parameters and new repeat periods corresponding to each of the first, second, and third control messages are determined in association with each new combination. Optimal repeat periods corresponding to each of the first, second, and third control messages are then selected from among the repeat periods determined with respect to each combination of values. Based on the selected repeat periods, an optimal combination of values is selected for each of the first and second control channel parameters.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: February 14, 2006
    Assignee: Motorola, Inc.
    Inventors: Trang Nguyen, Jyoti N. Black, Jeffrey C. Smolinske
  • Patent number: 6990341
    Abstract: A method for transmitting messages on a paging channel is disclosed, in which data burst messages are efficiently transmitted through the paging channel. If the data burst messages transmitted through the paging channel are not transmitted on their slots due to overhead messages, the data burst messages are delayed by a next overhead message transmission period having no overhead message in a system which does not employ a corrected quick paging channel while the data burst messages are first transmitted within a limited range in a system which employs a corrected quick paging channel. Therefore, a receiving rate of the data burst messages can be improved.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: January 24, 2006
    Assignee: LG Electronics Inc.
    Inventors: Woo Seok Kang, Ji Young Hwang, Sung Hyun Nam
  • Patent number: 6987974
    Abstract: Forward/Backward Call Indicators and the Progress Indicator (PI) of ISUP messages are used in call control signals, such as for setting up a mobile multimedia call, to indicate the involvement of a Public Switched Telephone Network (PSTN) terminal. Either terminal of an end-to-end connection can initiate the call and likewise either can respond to the call control signals initiated by the other terminal to immediately recognize the unambiguous fact that a PSTN terminal is involved in the call and to immediately respond by correctly setting up an appropriate and compatible communication format.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: January 17, 2006
    Assignee: Nokia Corporation
    Inventors: Miraj Mostafa, Harri Honko
  • Patent number: 6973325
    Abstract: For a push-to-talk function in a mobile communication system (30), an indication is received (35) by a user (50) that the talking floor is available. Next, an uplink temporary block flow is established (36). Prior to release of the uplink temporary block flow by the mobile communication system, a refresh message is sent (39) to hold the uplink temporary block flow. Downlink temporary block flows may also be refreshed by this method, or by the mobile communication system. Then the requesting user may enable the push-to-talk function. These techniques can improve talker arbitration and call setup delays for push-to-talk.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: December 6, 2005
    Assignee: Motorola, Inc.
    Inventors: Bradley R. Schaefer, John M. Harris, Mark L. Shaughnessy
  • Patent number: 6968193
    Abstract: System for mobile telecommunication, comprising a first mobile network (KTm), connected to a first nonmobile network (KTv) having routing means (X). Terminals connected to the nonmobile network may set up a connection with mobile terminals having the first or a second mobile network as their home network. A mirror register (MLR), connected to the routing means in the nonmobile network, is used to record a copy of the user profile transferred by the HLR register of the home network of a roaming mobile terminal to the VLR register of the non-home network. The user profile stored in the mirror register in this manner is then used—together with the VLR—to directly drive the routing means X of the nonmobile network KTv, as a result of which the routing path is considerably shortened.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: November 22, 2005
    Assignee: Koninklijke Kpn N.V.
    Inventors: Johannes Maria Van Loon, Ivan Markoski
  • Patent number: 6965588
    Abstract: An apparatus and method for optimizing the transition of a Mobile Station (MS) between states of operation for packet data service. An RF connection is established between the MS and Base Site Equipment (BS) for the transmission of data packets. After a period of inactivity of transmission, the RF connection is released and the BS provides the MS with the equipment identifier of the network element that will maintain the connection with a PDSN. The MS retains the identifier while in the Dormant state and a new Semi-Dormant state and sends the identifier to the BS when requesting reactivation. In the Dormant state, the network element maintaining the connection to the PDSN is the PCF. In the Semi-Dormant state, the network element maintains the connection between to the PDSN is the SDU. When the BS has data to transmit to a MS in the Semi-Dormant state, it channel assigns the MS into the Active state according to pilots reported in RF Measurement Report Messages previously received from the MS.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: November 15, 2005
    Assignee: Motorola, Inc.
    Inventors: Christopher R. Schmidt, John M. Harris
  • Patent number: 6957068
    Abstract: A system for providing a dynamic multi-mode service acquisition capability to a subscriber station is provided. The subscriber station is capable of operating in two or more modes of operation. A time to scan condition is indicated while the subscriber station is operating in a current mode of operation having active and inactive states. Responsive thereto, the system stores state information for the current mode of operation, and attempts at least a partial acquisition of communications services in accordance with another mode of operation. The at least partial acquisition attempt is scheduled to be initiated while the subscriber station is operating in the inactive state in the current mode of operation, and completed before the subscriber station transitions back to the active state in the current mode of operation. If the acquisition attempt is successful, the subscriber station transitions to the new mode of operation, maintaining appropriate registration.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: October 18, 2005
    Assignee: Qualcomm, Incorporated
    Inventors: James A. Hutchison, IV, Rotem Cooper, Paul T. Williamson
  • Patent number: 6954647
    Abstract: This invention proposes a mobility management method and system for wireless data networks, such as GPRS and UMTS systems. The wireless data network consists of at least one mobile device and one network apparatus. The cells in a wireless data network are partitioned into several routing areas. In the wireless data network, the mobility management activities for a mobile device are characterized by a mobility management finite state machine exercised in both the mobile device and network apparatus. There are three states in the machine: idle state, standby state and ready state. Both the mobile device and network apparatus employ a ready counter, which counts the number of cells crossed by the mobile device in the packet idle period between two packet transmissions. If the counted number reaches a threshold, the mobility management state switches from the ready state to standby state.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: October 11, 2005
    Assignee: Industrial Technology Research Institute
    Inventors: Yi-Bing Lin, Shun-Ren Yang, Vincent Feng
  • Patent number: 6952590
    Abstract: Method and apparatus for providing a multi-channel, multi-user wireless intercom, comprising a plurality of multi-channel wireless transceiver radios configured to form a radio unit. Each user in a group of users employs a radio unit to communicate with other users in the group. Users may selectively communicate with another user or broadcast simultaneously to all users in the group. Additionally, subnets between users may be formed where communications take place among a number of selected users comprising less than the entire group of users. Receive and transmit audio combiners are employed such that users can hear communications traffic on one or more channels and transmit on one or more channels, simultaneously.
    Type: Grant
    Filed: May 6, 2002
    Date of Patent: October 4, 2005
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: David J. Legare, F. Robert Falbo, Paul E. Sargent, Timothy A. Baker
  • Patent number: 6947748
    Abstract: A method and apparatus for subcarrier selection for systems is described. In one embodiment, the system employs orthogonal frequency division multiple access (OFDMA). In one embodiment, a method for subcarrier selection comprises each of multiple subscribers measuring channel and interference information for subcarriers based on pilot symbols received from a base station, at least one of subscribers selecting a set of candidate subcarriers, providing feedback information on the set of candidate subcarriers to the base station, and the one subscriber receiving an indication of subcarriers of the set of subcarriers selected by the base station for use by the one subscriber.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: September 20, 2005
    Assignee: Adaptix, Inc.
    Inventors: Xiaodong Li, Hui Liu, Kemin Li, Wenzhong Zhang
  • Patent number: 6944459
    Abstract: The invention relates generally to a method and an arrangement for transferring information in a packet radio service. Especially the invention applies to transferring delay sensitive data, such as speech and video data, in a mobile cellular telecommunications system. It is an object of this invention to provide a solution, in which the physical connection of a packet radio service is kept reserved also during the passive periods of a session but the same physical resource can still be shared between multiple users. In the present solution after the end of an active period of data transmission a predetermined time period is waited until the connection is released. The length of the time period is informed to the mobile station by the network on a dedicated or on a broadcast channel. The length of the time period is preferably made dependent on the required quality of service value of the connection and on the momentary communication activity in the network or cell.
    Type: Grant
    Filed: August 22, 2001
    Date of Patent: September 13, 2005
    Assignee: Nokia Mobile Phones Ltd.
    Inventors: Janne Parantainen, Mika Forssell
  • Patent number: 6941143
    Abstract: Within a radio access network (111, 112) an access point (181, 182, 183 and 184) selects a channel by first randomly choosing a channel from those available for use. The Access Point then monitors the channel for a random interval to determine if the channel is presently carrying traffic. The Access Point will select the channel unless the channel is in use by another AP. If so, then the AP will select another channel and commence monitoring for a random interval in order to determine whether the channel is available. The AP will continue to choose channels until a suitable channel is found, or all available channels have been exhausted.
    Type: Grant
    Filed: August 29, 2002
    Date of Patent: September 6, 2005
    Assignee: Thomson Licensing, S.A.
    Inventor: Saurabh Mathur
  • Patent number: 6937855
    Abstract: A freight tracking system having sufficient accuracy for most commercial freight hauling purposes is disclosed. The system includes a mobile telephone transmitter located in the freight or in the vehicle hauling the freight that automatically calls a telephone at the central reporting station. A caller reception unit detects the calling number and current visited base station information without answering the call and supplies it to a computer at the central reporting station which then determines the location of the shipment.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: August 30, 2005
    Inventor: Joseph S. Nadan
  • Patent number: 6928290
    Abstract: In a mobile communications network, a delivery acknowledgement receipt can be sent to indicate a SMS message is delivered. A system can be based on currently-existing protocols, such as described in the IS-136 standard. Existing network signals that acknowledge receipt of a message can be captured and utilized to notify the originator when the SMS message is delivered. A variety of other scenarios (e.g., unsuccessful delivery) can also be supported.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: August 9, 2005
    Assignees: AT&T Wireless Services, Inc., AT&T Corp.
    Inventors: Simon D. Byers, Nathan Hamilton, Shanmugavelayutham Muthukrishnan, James F. Parkyn
  • Patent number: 6925309
    Abstract: To address the need for an apparatus and method for quickly establishing a CDMA dispatch call, the present invention provides for paging mobile stations (e.g., 120-123) to inform them of the call and then starting the dispatch call without waiting for page responses from the call participants. The dispatch call is first transmitted by base sites (e.g., 110-112) of all the service coverage areas (e.g., 101-103) that may have call participants, and then discontinued at those base sites where no page responses are received within a period of time. Thus, the dispatch call is established while “call setup” effectively continues.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: August 2, 2005
    Assignee: Motorola, Inc.
    Inventors: Michael L. Needham, Timothy J. Wilson, Leigh M. Chinitz
  • Patent number: 6907250
    Abstract: A mobile communication system includes a plurality of base stations and a mobile station communicating with the base station through a wireless channel. The system comprises a part which measures an amount of information transferred between the base station and the mobile station and a comparator which compares the measured amount of information with first and second threshold values corresponding to a currently used wireless channel. A wireless channel changeover part changes the current wireless channel to a wireless channel with a transmission capability higher or lower than that of the current wireless channel when the measured amount of information is above the first threshold value or below the second threshold value, respectively.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: June 14, 2005
    Assignee: NTT DoCoMo, Inc.
    Inventors: Yoshihiro Ishikawa, Seizo Onoe, Kazunori Obata, Takaaki Sato
  • Patent number: 6907270
    Abstract: A method and apparatus for estimating a communication channel in a wireless communication system having multiple transmitter antennas using reduced rank estimation. The method exploits redundant and/or a priori knowledge within a system to simplify the estimation calculations. In one embodiment, a covariance matrix is calculated and analyzed to determine if the channel parameters may be reduced for channel estimation. If not, all parameters are used, otherwise a reduced rank matrix is used for the calculation.
    Type: Grant
    Filed: October 23, 2000
    Date of Patent: June 14, 2005
    Assignee: QUALCOMM Inc.
    Inventor: Josef J. Blanz