Control Channel Monitoring (i.e., Paging Or Access Channel Signaling) For System Access Patents (Class 455/515)
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Patent number: 7630740Abstract: A method of updating channel information by a mobile station (MS) that is in power saving mode is disclosed. More specifically, the method includes the MS which receives status information of a first channel descriptor and transmission frame information which includes when the first channel descriptor is to be transmitted. Furthermore, the MS compares status information of the first channel descriptor with status information of a second channel descriptor. Here, the second channel descriptor is stored in the MS. Lastly, if the compared status information are different, the MS receives the first channel descriptor according to the transmission frame information.Type: GrantFiled: December 30, 2005Date of Patent: December 8, 2009Assignee: LG Electronics Inc.Inventors: Beom Joon Kim, Ki Seon Ryu, Yong Ho Kim, Yong Won Kwak, Ki Hyoung Cho
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Patent number: 7630725Abstract: A paging apparatus and method in a mobile communication system providing an MBMS (Multimedia Broadcast Multicast Service). In the mobile communication system, to page a UE for a first service through a primary carrier during a second service in progress through a secondary carrier, a PICH (Paging Indication Channel) transmitter in a Node B transmits paging indication information to the UE through the primary carrier by oscillating the primary carrier as a transmission frequency. A PCH (Paging Channel) transmitter transmits paging information to the UE through the primary carrier or the secondary carrier by oscillating the primary carrier or the secondary carrier as the transmission frequency under a predetermined control. A PBMSCH (Physical Broadcast Multicast Shared Channel) transmitter transmits data of the second service through the secondary carrier by oscillating the secondary carrier as the transmission frequency.Type: GrantFiled: October 21, 2002Date of Patent: December 8, 2009Assignee: Samsung Electronics Co., LtdInventors: Yong-Jun Kwak, Hyeon-Woo Lee, Myeong-Sook Seo, Joon-Goo Park, Sung-Ho Choi, Sung-Hoon Kim
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Patent number: 7623503Abstract: A method of transmitting an overhead message via a control channel which has at least one slot is disclosed. More specifically, a base station (BS) transmits an overhead slot cycle index for providing the overhead message to a mobile station (MS) and thereafter, receives the overhead slot cycle index and determining an overhead slot cycle. Furthermore, the BS transmits the overhead message on a first slot of each overhead slot cycle according to a variable duration of the slot, and then receives the overhead message from the first slot of each overhead slot cycle according to the variable duration of the slot.Type: GrantFiled: March 8, 2006Date of Patent: November 24, 2009Assignee: LG Electronics Inc.Inventors: Jong Hoe An, Young Jun Kim, Chan Ho Kyung, Young Woo Yun
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Patent number: 7623880Abstract: Method and apparatus for enhanced selection of a channel for use in redistributing mobile stations to various frequencies in a communication system. In one aspect, the method appends a redistribution alteration record to a common channel redistribution message. The redistribution alteration record alters the sequencing of the mobile station when selecting a channel in the common channel redistribution message.Type: GrantFiled: October 21, 2005Date of Patent: November 24, 2009Assignee: QUALCOMM IncorporatedInventors: Ragulan Sinnarajah, Jun Wang
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Patent number: 7623881Abstract: A method of transmitting a broadcast message using a Forward Common Control Channel (F-CCCH) in a wireless communication system is disclosed. More specifically, a base station determines whether a periodic enhanced broadcast page is enabled or disabled, and then transmits at least one broadcast message via a first slot of a broadcast paging cycle of the F-CCCH if determined that the periodic enhanced broadcast page is enabled.Type: GrantFiled: March 2, 2006Date of Patent: November 24, 2009Assignee: LG Electronics Inc.Inventors: Jong Hoe An, Young Jun Kim, Chan Ho Kyung
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Patent number: 7620396Abstract: Techniques for monitoring radio frequency (RF) activity in a frequency band where licensed spectrum service is occurring. One or more monitoring devices are deployed at one or more locations in the coverage area of a licensed spectrum service provider. For example, the monitoring device may be integrated into a base station of a licensed spectrum service provider. Each monitoring device receives RF energy and detects whether the radio frequency energy contains activity not associated with the licensed spectrum service provider and whether there is a violation of a secondary usage policy.Type: GrantFiled: February 2, 2006Date of Patent: November 17, 2009Assignee: Cisco Technology, Inc.Inventors: D. Andrew Floam, Gary L. Sugar, Neil R. Diener
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Patent number: 7620393Abstract: A method (200) for managing communication devices is disclosed. The method includes receiving a request by the receiver (304) from a first communication device, for placing the first communication device in an active communication session. The request comprises information corresponding to identity of the first communication device. The method (200) also includes identifying an active communication session on the basis of identity of the first communication device. Further, the method (200) includes placing the first communication device in the active communication session.Type: GrantFiled: December 26, 2006Date of Patent: November 17, 2009Assignee: Motorola, Inc.Inventors: Naayanan Venkitaraman, Mohammed M. Ahmed, Rajesh S. Pazhyannur, Moon Do Seo
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Publication number: 20090280848Abstract: A method for paging in a wireless access system is disclosed. A method for paging a mobile station of an idle mode comprises allocating large paging group identifier and small paging group identifier of a paging group to which the mobile station belongs to a header; allocating a large paging group flag and a small paging group flag to the header, the large paging group flag and the small paging group flag indicating the presence of a paging message for the mobile station; and transmitting the header to the mobile station of the idle mode.Type: ApplicationFiled: May 8, 2009Publication date: November 12, 2009Inventors: Gi Won Park, Ki Seon Ryu
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Publication number: 20090280847Abstract: Code words are assigned to subscriber stations or groups of subscriber stations in a communication network for a quick paging mechanism in which the assigned code words are transmitted as quick paging signals over unused frequency resources to signal the subscriber stations. Subsets of multiple code words from a set of code words can be assigned to respective paging groups, and overlapping subsets can be assigned to multiple paging groups. This enables a single code word to be used to address either a single paging group or multiple paging groups.Type: ApplicationFiled: December 30, 2008Publication date: November 12, 2009Inventors: Rajaram Ramesh, Havish Koorapaty, Kumar Balachandran
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Patent number: 7616925Abstract: The invention relates to a method for accessing information, especially for accessing additional information to information which is audibly and/or visually presented to a user, in which the information presented to the user comprises individual information sections to which additional information is allocated, and in which the additional information can be transmitted via a transmission channel during the presentation of the information so that it can be provided for later use on request.Type: GrantFiled: June 22, 2001Date of Patent: November 10, 2009Assignee: Nokia CorporationInventor: Wolfgang Theimer
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Patent number: 7613455Abstract: A rescan apparatus and method of a mobile terminal are provided that can monitor a specific slot during a rescan process. The rescan apparatus and method of the mobile terminal may allow the mobile terminal to monitor the specific slot while periodically rescanning systems. The mobile terminal may receive paging during the rescan process. In addition, the rescan apparatus and method may prevent call reception failure or message reception delay of the mobile terminal, thereby implementing efficient soft handover.Type: GrantFiled: September 14, 2004Date of Patent: November 3, 2009Assignee: LG Electronics Inc.Inventor: Young-Jae Park
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Publication number: 20090270117Abstract: An apparatus, and an associated method, for facilitating home, or other public network access by a wireless device. The access is made in order to access public-network services by the wireless device when connecting to the public network by way of another network. Access availability by way of 802.1x-capable wireless local area networks, if any, is determined. A listing is made of networks through which connections are able to be made. And, if operator policy permits, a public-network access attempter attempts to make communication connections by way of non-802.1x-capable wireless local area networks, if any. Identification is made of network access availability, and such identified network access is displayed to provide a user of the wireless device with an opportunity to select in what manner to connect to the public network.Type: ApplicationFiled: April 24, 2008Publication date: October 29, 2009Applicant: RESEARCH IN MOTION LIMITEDInventor: ADRIAN BUCKLEY
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Patent number: 7610020Abstract: A method of wireless communication with a first station arranged to transmit at least one transmission to be received by a plurality of second stations to provide a point to multipoint transmission. A first determining step determines in at least one of a plurality of second stations, if at least one transmission which is received at least one second station satisfies predetermined criterias. In response to information determined in said first determining step, a second determining step determines if a first station is to change a power level with which the first station transmits to the plurality of second stations in a point to multipoint transmission. A power changing step changes the power level with which said first station transmits power if the second determining step determines that the power level is to be changed.Type: GrantFiled: December 11, 2003Date of Patent: October 27, 2009Assignee: Nokia CorporationInventors: Harri Jokinen, Johanna Pekonen
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Patent number: 7606601Abstract: A fast call setup system and method for a mobile communications device is provided. A mobile terminal monitors a paging channel on a first predetermined cycle, the paging channel comprising a plurality of slots for monitoring. After a traffic channel is disconnected upon receiving a release order, the network provides reduced slot cycle parameters to the mobile terminal. The mobile terminal uses these parameters to monitor the paging channel using a reduced slot cycle. Upon the expiration of an operational timer or through an intervention of either the network or the mobile terminal, the reduced slot cycle is terminated and a normal slot cycle is reinstated.Type: GrantFiled: June 18, 2004Date of Patent: October 20, 2009Assignee: LG Electronics Inc.Inventors: Jong Hoe An, Chan Ho Kyung
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Publication number: 20090257423Abstract: A system and method for channel status information feedback in a wireless communications system is provided. A method includes receiving a transmission containing feedback information from a mobile station (MS) having N total antennas, M receive/transmit antennas, N?M receive-only antennas, wherein N and M are integers and N>M, decoding the received transmission, computing estimates of CSI for channel elements of N?M receive-only antennas using the decoded transmission, computing estimates of CSI for channel elements of M receive/transmit antennas using channel reciprocity, and computing a precoding matrix from the channel elements for the N?M receive-only antennas and the M receive/transmit antennas.Type: ApplicationFiled: April 14, 2009Publication date: October 15, 2009Applicant: FutureWei Technologies, Inc.Inventors: Young Hoon Kwon, Yang Tang, Tao Wu
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Publication number: 20090258663Abstract: A method for paging access terminals. The method includes: a network entity sends a paging message to a target AN. The paging message carries the information required for calculating the time when the AT wakes to monitor the paging message. The information includes the absolute time that is determined according to the time when the AT previously shifts from the connected state to the idle state. Upon receipt of the paging message, the target AN determines when to send the paging message to the AT according to the information carried in the paging message. The present embodiments also disclose a system and apparatus for paging access terminals. The apparatus is a network entity that sends the paging message. The method, system and apparatus can be used to determine the time when the AT wakes to monitor the paging message, thus ensuring that the AT paging is not missed.Type: ApplicationFiled: March 31, 2009Publication date: October 15, 2009Inventor: Mingxia Xu
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Patent number: 7603113Abstract: In one embodiment, a method is provided. The method includes evaluating local codecs of a cellular telephone. The method further includes playing a content file with a media player on the cellular telephone. The method also includes accessing encoded media referred to by the content file in a format determined based on local codecs of the cellular telephone.Type: GrantFiled: December 31, 2005Date of Patent: October 13, 2009Assignee: Adobe Systems IncorporatedInventors: Rob Borcic, Angus Davis, Chris Thilgen, Govind Balakrishnan
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Patent number: 7602742Abstract: To manage power in a wireless communication device, broadcast channels used by the network are scanned with a first processor in a lower power mode. The scanning is performed using a second processor that uses less power than the first processor. The scanning is performed at periodic points in time until a broadcast channel acceptable for the wireless connection is identified. The second processor is placed in the lower power mode between scans. The second processor is awakened from the lower power mode to perform the scanning.Type: GrantFiled: April 25, 2005Date of Patent: October 13, 2009Assignee: Palm, Inc.Inventors: Craig S. Skinner, John Brown, William Wong
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Patent number: 7602755Abstract: Briefly, a method and apparatus to perform a passive scanning by partitioning a control signal scanning period into two or more portions. A distance from one portion of scanning period to another portion of scanning period is substantially equal to a control signal transmission interval.Type: GrantFiled: November 17, 2004Date of Patent: October 13, 2009Assignee: Intel CorporationInventors: Boris Ginzburg, Rony Ross
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Patent number: 7599664Abstract: A method for operating a mobile equipment (ME 10) in a wireless network (12) includes receiving from a wireless network a parameter that is indicative of a signal quality experienced by the ME, such as by determining a speed of the ME; calculating in the ME an indication of link quality, the calculation employing a filtering operation having a filter length that is a function of the determined parameter, such as speed or derivative of the speed of the ME; and reporting the calculated indication of link quality to the wireless network. The wireless network derives an indication of ME speed and transmits the speed indication to the ME using a point-to-point message.Type: GrantFiled: March 26, 2008Date of Patent: October 6, 2009Assignee: Nokia CorporationInventors: Guillaume Sebire, Yuping Zhao, Eero Nikula
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Patent number: 7599693Abstract: A mobile communication terminal according to the present invention includes: a receiver for receiving a signal from a base station via an antenna; a cell search section for searching for a cell of a desired network; a cell storage section for storing information about a frequency that is used by the network; and a cell search control section for controlling the cell search section and the cell storage section. The cell storage section stores a plurality of predetermined frequency bands that can be searched. The cell search control section controls the cell search section to search for frequencies in the frequency bands according to a predetermined priorities. A cell search method according to the present invention includes: assigning priorities to the frequency bands according to a predetermined rule; and performing a cell search for a cell belonging to a desired network according to the priorities.Type: GrantFiled: September 13, 2005Date of Patent: October 6, 2009Assignee: NEC CorporationInventor: Takahiro Kuriyama
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Publication number: 20090247206Abstract: Systems and methods are provided to establish a set of dynamic channel masks that select channels to be scanned in a wireless environment during a mobile terminal roaming. The set of channel masks is associated with a set of scan groups determined through a Boolean operation applied to a set of scan variables determined via data indicators that reflect channel quality and/or presence in the vicinity of the mobile terminal. Regardless of actual access point geometric configuration in a quasi-two-dimensional coverage plan, a universal set of three scan groups can be determined. In addition to the universal set, a fail-safe set is computed in order to ensure successful scanning in various roaming scenarios. Quality of service indicators like communication reliability and battery performance can be improved by successively scanning the universal scan groups during roaming.Type: ApplicationFiled: March 26, 2008Publication date: October 1, 2009Applicant: SYMBOL TECHNOLOGIES, INC.Inventor: John J. Yacono
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Patent number: 7596371Abstract: Embodiments of the present invention provide a method, apparatus and system of selectively scanning a wireless communication band. In some demonstrative embodiments the method may include, for example, selectively scanning in response to a request to scan a wireless communication band, at least part of the wireless communication band based on a user-customized scanning profile. Other embodiments are described and claimed.Type: GrantFiled: March 30, 2006Date of Patent: September 29, 2009Assignee: Intel CorporationInventors: Boris Ginzburg, Max Fudim
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Publication number: 20090233637Abstract: Each of terminals for use in a regional broadcast radio system includes a measuring unit for measuring an electric field value of a received signal of a specific frequency; a comparing unit for comparing the electric field value of the received signal with a predetermined electric field value; a scanning unit for scanning a specific frequency band when the electric field value of the received signal is equal to or less than the predetermined value; a frequency detecting unit for detecting a frequency of a maximum received electric field; and an information detecting unit for detecting whether notification information is included in a reception signal of the detected frequency. Each of terminals further includes an acquiring unit for acquiring a district code from the detected notification information; and a district code changing unit for setting the acquired district code as a district code of each of terminals.Type: ApplicationFiled: March 10, 2009Publication date: September 17, 2009Applicant: Hitachi Kokusai Electric Inc.Inventor: Masayoshi Yoshizawa
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Publication number: 20090233636Abstract: In a wireless network using directional communication links between devices in the network, when the network controller detects that one or more of the directional links is lost, it may use a beacon to schedule separate antenna training periods for the devices involved in the lost links. In some embodiments, all of the training periods may take place in the same superframe as the beacon.Type: ApplicationFiled: March 5, 2009Publication date: September 17, 2009Inventors: Solomon Trainin, Carlos Cordeiro
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Patent number: 7587168Abstract: A digital multimedia broadcasting (DMB) system and conditional access method for regionally limiting DMB reception. A DMB station collects information about location of a DMB receiving terminal when a broadcast channel with regional conditional access features is being broadcast. According to the current location of a DMB receiving terminal, the DMB station checks subscribers whose reception of the broadcast channel with the regional conditional reception features is limited. The DMB station includes reception restriction information for limiting the reception of the broadcast channel in subscriber entitlement information of subscribers. The DMB receiving terminal descrambles and outputs a transport stream (TS) packet of the broadcast channel according to the received subscriber entitlement information. Therefore, the reception of a specific broadcast channel can be limited according to location of a user of the DMB receiving terminal.Type: GrantFiled: May 17, 2006Date of Patent: September 8, 2009Assignee: Samsung Electronics Co., LtdInventors: Ho-Jun Lee, Dong-Jun Kum, Beom-Soo Cho
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Patent number: 7587213Abstract: Disclosed is a method for controlling a PACA call in a mobile telecommunications system, which comprises: sending a new origination message from a mobile station in a PACA state to a base station; sending a service request message for a PACA call from the base station to a mobile switching center, requesting from the mobile switching center the base station to assign a traffic channel to the mobile station; assigning an available traffic channel to the mobile station to start a communication; and distinguishing the PACA call service from an ordinary call service.Type: GrantFiled: May 24, 2004Date of Patent: September 8, 2009Assignee: Samsung Electronics Co., Ltd.Inventor: Yong-Moon Seon
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Patent number: 7580393Abstract: An apparatus and method of a method of an access point determining whether to transmit a response to a client device probe request is disclosed. The method includes the access point receiving a probe request from a client device. The access point determines a quality of a link between the access point and the client device based on the probe request. The access point sets a delay time for transmitting a probe response to the probe request depending upon the quality of the link.Type: GrantFiled: October 2, 2006Date of Patent: August 25, 2009Assignee: Tropos Networks, Inc.Inventors: Huizhao Wang, Roman M. Arutyunov
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Patent number: 7561552Abstract: This method (110) adaptively sends control messages and a predetermined number of fast repeats of the control messages on the traffic channel of a mobile communication system. For a control message which has already been lost (118), the system sends the control message again with a first number of fast repeats (130) if the traffic channel is operating at a full rate; and the system sends the control message with a second number of fast repeats if the traffic channel is operating at a subrate. The number of fast repeats is selectable. If the control message has not been previously sent and the traffic channel is operating at a subrate (124), the system will send the control message with a third number of fast repeats (128).Type: GrantFiled: May 25, 2004Date of Patent: July 14, 2009Assignee: Motorola, Inc.Inventors: Jonathan H. Gross, Ravi M. Adatrao, Shawn W. Hogberg, Daniel R. Tayloe
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Patent number: 7561556Abstract: A method of assigning a public long code mask (PLCM) to a mobile terminal in a mobile communications network is provided. The method comprises assigning a first PLCM type, when the mobile communications network assigns the PLCM for the mobile terminal; and assigning a second PLCM type, when the PLCM for the mobile terminal is determined based on an electronic serial number (ESN) associated with the mobile terminal.Type: GrantFiled: April 29, 2004Date of Patent: July 14, 2009Assignee: LG Electronics Inc.Inventors: Jong Hoe An, Chan Ho Kyung
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Patent number: 7561891Abstract: In one embodiment, a scheme is provided for customization of a mobile communications device's data session retry mechanism in a wireless packet data service network. Upon detecting that a cause code has been returned by a node disposed in a wireless packet data service network, a structure is interrogated to determine if the cause code is mapped to a flag relating to the device's data session retry mechanism. Responsive to determining that the received cause code is mapped as a critical cause code, the data session retry mechanism of the mobile communications device is disabled so that further signaling messages towards the network are prevented.Type: GrantFiled: November 5, 2004Date of Patent: July 14, 2009Assignee: Research In Motion LimitedInventors: Jean-Philippe Cormier, Thomas Leonard Trevor Plestid, Ian Simpson, Arun Munje
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Patent number: 7558587Abstract: A system, method, and wireless device for dynamically selecting a wireless information communication mode for wireless communication of information to at least one wireless device (104). The method includes receiving at least one request for wireless communication of information to at least one wireless device (104). The method further comprises selecting, based at least in part on a total number of wireless devices to receive the wireless communication of information, a mode of wireless communication of information to the at least one wireless device (104). The mode of wireless communication being selected from at least one of a wireless information broadcast communication mode, a wireless information multicast communication mode, and a wireless information unicast communication mode. The at least one wireless device (104) is wireless notified to set its current wireless communication mode to the selected mode of wireless communication to receive the wireless communication of the information.Type: GrantFiled: December 12, 2005Date of Patent: July 7, 2009Assignee: Motorola, Inc.Inventors: Nandakishore A. Albal, Peter J. Armbruster, Jay P. Jayapalan
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Patent number: 7558228Abstract: A method of communicating a point-to-multipoint service in a wireless communication system comprises receiving through a control channel a first message comprising a first point-to-multipoint service group identifier associated with a first plurality of point-to-multipoint services for a predetermined area. The method also comprises receiving a second message through the control channel comprising a list of point-to-multipoint service identifiers associated with the first point-to-multipoint service group identifier. The method also comprises processing according to control information received through the control channel if the list of point-to-multipoint service identifiers comprises at least one service that a user equipment is subscribed to. The control channel may be a point-to-multipoint control channel. The first message may comprise a list of point-to-multipoint services associated with modified control information.Type: GrantFiled: January 19, 2006Date of Patent: July 7, 2009Assignee: LG Electronics Inc.Inventors: Young Dae Lee, Sung Duck Chun, Myung Cheul Jung
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Patent number: 7554940Abstract: In a mobile communication system, when a connection necessary to provide a service supporting high-speed data communication referred to as an MBMS (Multimedia Broadcast Multicast Service) is configured on an Iu interface, contention with the other packet communication service is eliminated. As a logical connection established between an SGSN (Serving GPRS (General Packet Radio Service) Support Node) and a Radio Network Controller in a Core Network 10, a PS (Packet Switching processing) functional connection for an existing packet communication service and a connection for a new MBMS service offering high-speed data communication are provided separately and independently from each other. This eliminates the contention between different types of services of the PS service and the MBMS service to thereby enable executing processings of such different types of services without being conscious of mutual processings.Type: GrantFiled: October 6, 2003Date of Patent: June 30, 2009Assignee: NEC CorporationInventors: Kenji Kawaguchi, Masahiko Kojima, Toshiyuki Tamura
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Patent number: 7551923Abstract: A method for improving the use of a transmission spectrum in a multi-sector wireless communication system includes generating a first signal, processing a first signal with a first Auto Tune Combiner, transmitting the first signal on an antenna associated with a first sector, sampling the first signal with a radio frequency test device, generating a second signal, processing the second signal with a second Auto Tune Combiner, transmitting the second signal on an antenna associated with a second sector, and sampling the second signal with the radio frequency test device.Type: GrantFiled: April 11, 2006Date of Patent: June 23, 2009Assignee: AT&T Mobility II LLCInventors: Kraig Keys, Christopher Scott Erwin, Richard Bruno, David Bogart, Martin Chang
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Patent number: 7551938Abstract: A command post radio provides for more reliable radio communications between two or more locations using handie talkies by incorporating in the use of a command post radio. In one embodiment, a firefighter on a fire floor of a building can use a handie talkie to send a signal to a post radio on a floor below the fire floor. The post radio can boost and transmit the signal to a mobile radio and Cross Band repeater in a Battalion car where the signal is then transmitted to a handie talkie carried by the Battalion Chief in the lobby of the building. The Battalion Chief can respond to the firefighter on the fire floor via the same path. In addition to use by fire departments, the post radio can be used by different groups for different operations.Type: GrantFiled: September 23, 2004Date of Patent: June 23, 2009Inventor: Michael Stein
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Publication number: 20090137262Abstract: A mobile station accesses a base station by randomly selecting a first reverse link common control channel from a set of random access channels. The mobile station transmits a request portion of an access probe over the first reverse link common control channel. The request portion is subject to collision with other signals. The request portion comprises a hash identification which is derived from a uniquely identifying number using a hash function. The hash identification quasi-uniquely identifies the mobile station. The mobile station receives a channel assignment message from the base station designating the hash identification and a reserved access channel. The reserved access channel provides communication with a low probability of contention. The mobile station transmits a message portion of the access probe over the reserved access channel.Type: ApplicationFiled: February 5, 2009Publication date: May 28, 2009Applicant: QUALCOMM INCORPORATEDInventors: Serge Willenegger, Vieri Vanghi, Rod J. Walton
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Patent number: 7536168Abstract: A method transmits data bits between at least one subscriber station and a transmitter in a radio communication system. Each data bit is transmitted on at least two different units of a first radio resource. On the emitter side, the data bits are spread for each unit of the first radio resource in such a way that each data bit is multiplied by a code matrix of the same matrix code group for the first radio resource units whose lines display respectively a spreading code realigning to a second radio resource and the columns display respectively a spreading code relating to a third radio resource.Type: GrantFiled: April 23, 2004Date of Patent: May 19, 2009Assignee: Siemens AktiengesellschaftInventors: Peter Farkas, Matús Turcsány
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Patent number: 7536194Abstract: A method and system to synchronize a first device and a second device includes generating a first tone by the first device, the first tone one of including an identity of the second device and generated at a predefined time, receiving the first tone by the second device, setting a clock of the second device based on the received first time, and sending an acknowledgment by the second device to the first device.Type: GrantFiled: September 30, 2005Date of Patent: May 19, 2009Assignee: Robert Bosch GmbHInventors: Arati Manjeshwar, Lakshmi Venkatraman, Bhaskar Srinivasan
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Patent number: 7536451Abstract: The present invention relates to a method for increasing standby time of mobile terminal and device thereof, and more particularly in a mobile terminal that performs voice and/or data communication by switching between at least two networks using different protocols, and method for increasing standby time using an access history and the device thereof. According to the present invention, the minimized hybrid operation can increase the standby time of the mobile terminal. Also, by minimizing hybrid operation of a plurality of IS-856 mobile terminals, the resource efficiency of the EV-DO network can be maximized.Type: GrantFiled: September 24, 2002Date of Patent: May 19, 2009Assignee: KTFREETEL Co., Ltd.Inventors: Byung-Ik Ahn, Ki-Hong Kim
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Patent number: 7529211Abstract: A method and apparatus for managing paging related delays between a mobile station and a base station is provided, which includes the use of a fractional slot cycle index. A first value for the slot cycle index, which is equal to an integer value less than a desired fractional slot cycle index value, is selected for use during a period of time corresponding to a determined proportion of a reduced slot cycle period, and a second value for the slot cycle index, which is equal to an integer value greater than a desired fractional slot cycle index value, is selected for use during a period of time corresponding to a remaining portion of the reduced slot cycle period.Type: GrantFiled: April 4, 2005Date of Patent: May 5, 2009Assignee: Motorola, Inc.Inventors: Murali Narasimha, Kris K. Martinovich
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Patent number: 7526304Abstract: In a UMTS wireless communication system, the enhanced dedicated physical control channel (E-DPCCH) that is usually always transmitted together with the enhanced dedicated physical data channel (E-DPDCH) on the uplink from a UE to a NodeB is instead only transmitted when a predetermined “start criterion” is met and is turned off when a predetermined “stop criterion” is met until a “start criterion” is later met again. The UE starts transmitting E-DPCCH whenever the corresponding E-DPDCH transport format combination is different from the previous one in the same HARQ process or some other “start criterion” is met. Multiple mechanisms can be used to decide when the UE should switch off E-DPCCH transmission after the transport format combination of E-DPDCH has changed.Type: GrantFiled: September 29, 2005Date of Patent: April 28, 2009Assignee: Alcatel-Lucent USA Inc.Inventors: Rainer Walter Bachl, Anil M Rao, Mirko Schacht, Henry Hui Ye
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Patent number: 7519365Abstract: A method for a radiotelephone to search for a high priority, home, or home-equivalent public land mobile network (PLMN) includes a first step of registering and camping (300) the radiotelephone on a cell of visited PLMN. A next step includes uniquely identifying (302) the cell. A next step includes searching (304) for PLMNs with a higher priority than the visited PLMN while registered and camped on the uniquely identified cell. A next step includes storing (306) a history of those frequencies found that are not of a higher priority PLMN for the uniquely identified cell. Any subsequent searches for frequencies of higher priority PLMNs performed while registered and camped on that cell includes scanning (308) for available frequencies except for those frequencies listed in the history for the uniquely identified cell in which the radiotelephone is registered and camped.Type: GrantFiled: May 1, 2007Date of Patent: April 14, 2009Assignee: Motorola, IncInventors: Donald A. Dorsey, Sharada Raghuram, Charles P. Binzel
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Patent number: 7516473Abstract: The present invention relates generally to the field of signaling of information, and particularly to a method and a system for signaling information in transmission systems. Methods for signaling information in transmission systems do have certain disadvantages, like the use of an additional channel for signaling or the use of a large number of bits for signaling. The present invention facilitates highly protected and highly reliable signaling requiring only a minimum of bits by inserting an individual signaling information into individual frames and by additionally partitioning signaling information and inserting the partitioned signaling information into different frames, i. e. spreading the signaling information.Type: GrantFiled: July 16, 1999Date of Patent: April 7, 2009Assignee: Agere Systems Inc.Inventors: Alfons Eizenhoefer, Peter Kuczynski, Said Tatesh
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Patent number: 7515922Abstract: A control message transmitting/receiving method in an MBMS-supporting mobile communication system. In the present invention, an RNC periodically transmits control messages related to MBMS RB setup to UEs. Thus, although a UE initially fails to receive an intended MBMS service, it can set up an MBMS RB by receiving a related retransmitted control message. Also, the RNC periodically provides information about ongoing MBMS services on a cell basis so that a UE can decide whether its requested MBMS service is in progress and request information required to set up an MBMS RB for the MBMS service to the RNC by individual signaling.Type: GrantFiled: August 15, 2003Date of Patent: April 7, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Soeng-Hun Kim, Kook-Heui Lee, Sung-Ho Choi, Il Han
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Patent number: 7509135Abstract: A method for transmitting and receiving short message broadcast services in a communication system is disclosed. The present invention reduces a battery consumption of a mobile station by additionally using an inserted message field of a broadcast indicator for notifying whether a broadcast message is being transmitted from a base station to the MS, thereby allowing a more efficient short message broadcast service.Type: GrantFiled: March 8, 2007Date of Patent: March 24, 2009Assignee: LG Electronics Inc.Inventors: Seong Whan Kim, Cheol Kyun Heo
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Patent number: 7502623Abstract: An unique arrangement including a so-called timing control order and timing control signals is employed to identify whether wireless terminals are reachable within a base station cell coverage area in a wireless communications system. To this end, detection of a particular wireless terminal being alive and well, and within the cell coverage area associated with a base station is effected by the base station transmitting a timing control order in a timing control time slot reserved for the particular wireless terminal. If the particular wireless terminal receives the timing control order, it transmits a prescribed timing control message at a prescribed time. If the base station does not receive the timing control message, it is an indication that communication with the particular wireless terminal has been lost.Type: GrantFiled: August 8, 2005Date of Patent: March 10, 2009Assignee: Alcatel-Lucent USA Inc.Inventors: Rajiv Laroia, Junyi Li, Sathyadev Venkata Uppala
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Publication number: 20090036153Abstract: Provided are a communication system and a base station capable of preventing interference between signals and improving the throughput. A base station device (100) includes: a user quantity monitoring unit (130) for monitoring the number of terminals (users) existing in a cell of the local device; a RACH control unit (140) for transmitting control information (frame type identifier) controlling the frame type of RACH corresponding to the number of terminals; and an RF transmission unit (165) for transmitting the control information to the terminals. The RACH control unit (140) performs control in such a way that as the number of terminals increases, the control information amount contained in the frame of the frame type corresponding to the number decreases. Thus, in accordance with the number of users, the control information data amount is reduced and it is possible to transmit a short frame.Type: ApplicationFiled: January 23, 2007Publication date: February 5, 2009Inventors: Junya Yamazaki, Masayuki Hoshino
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Patent number: 7486959Abstract: A method for cell selection at access in a cellular radio communication system. A first hysteresis level for determining a first ranking level of serving cell is used at access, and a second hysteresis level for determining a second ranking level of the serving cell is used in idle mode.Type: GrantFiled: March 2, 2004Date of Patent: February 3, 2009Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventor: Walter Muller
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Patent number: 7483703Abstract: A system for monitoring each channel of the communication link (307) for protocol messages and identifying a set of channels with valid protocol messages and, monitoring the set of channels to determine the transceivers (309) served by the set of channels and associating the transciver (309) with respective channels from the set of channels.Type: GrantFiled: March 3, 2004Date of Patent: January 27, 2009Assignee: Andrew LLCInventors: Joseph P. Kennedy, Jr., Thomas Booker Gravely, Robert Brickhouse, Dennis Bergin