Control Channel Monitoring (i.e., Paging Or Access Channel Signaling) For System Access Patents (Class 455/515)
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Publication number: 20110171984Abstract: A radio base station monitoring method includes (A) a first radio base station detecting a second radio base station having newly detected a common control channel and a second radio base station having stopped detecting the common control channel as second radio base stations with a change, (B) the first radio base station notifying a network device of information about the second radio base stations with a change, and (C) the network device using information about second radio base stations associated with the first radio base station and the information about the second radio base stations with a change, which has been notified, to stop the operation of at least one of the first radio base station or the second radio base stations.Type: ApplicationFiled: May 27, 2009Publication date: July 14, 2011Applicant: NTT DOCOMO, INC.Inventors: Hiroyuki Hosono, Masafumi Masuda
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Patent number: 7979068Abstract: A wireless communication device accesses a scan list that includes a plurality of scan members sorted at least by receive frequency and attempts to detect whether a call of interest exists on a receive frequency by performing a group scan for a group of scan members that are marked scan undone and that have the same corresponding receive frequency, wherein the group includes a first scan member and at least one other scan member. The group scan includes inspecting the receive frequency to obtain inspection results; using the inspection results to determine that there is no signal on the receive frequency having signal attributes that match a set of attributes for the first scan member; and using the inspection results to evaluate at least one of the other scan members in the group to determine whether there is a corresponding signal of interest on the receive frequency.Type: GrantFiled: October 17, 2008Date of Patent: July 12, 2011Assignee: Motorola Solutions, Inc.Inventors: John P. Belmonte, Dipendra M. Chowdhary, Yueh Ching Chung, Hun Weng Khoo, David G. Wiatrowski
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Patent number: 7978703Abstract: In one embodiment, a signaling message is received from an endpoint. It is determined from the signaling message whether, prior to sending the signaling message, the endpoint performed network address translation on the body of the signaling message. If it is determined from the signaling message that, prior to sending the signaling message, the endpoint did not perform network address translation on the body of the signaling message, application layer gateway functionality is applied to the body of the signaling message such that a modified signaling message is generated.Type: GrantFiled: March 15, 2010Date of Patent: July 12, 2011Assignee: Cisco Technology, Inc.Inventors: Vinay J. Pande, Kaushik Biswas, Jayesh Chokshi, Daniel G. Wing
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Patent number: 7978658Abstract: In a wireless communication system using a reference channel used for error rate measurement and associated with a plurality of transport channels multiplexed on a coded composite transport channel (CCTrCH), a method is employed for reselection of the reference channel from favorable candidate transport channels. A channel is initially selected from the plurality of multiplexed channels as the reference channel. Channels are monitored based on quantitative data content criteria to determine whether an ON or OFF state exists. A different channel is selected from the plurality of multiplexed channels as the reselected RTrCH when a better candidate transport channel in the ON state becomes available, or when the monitored RTrCH reflects an OFF state.Type: GrantFiled: November 10, 2008Date of Patent: July 12, 2011Assignee: InterDigital Technology CorporationInventors: Pascal M. Adjakple, Charles A. Dennean, Renuka Racha, Carl Wang
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Patent number: 7974623Abstract: A communication terminal apparatus that exhibits a shorter time period required until a start of communication and causes the throughput in the wireless communication system to be less reduced. In this apparatus, when the number, N, of retransmissions notified by a response determining part (107) is zero, a subchannel-to-be-used selecting part (108) selects a subchannel, among others, which exhibits the highest order one of the reception qualities of the subchannels notified by a reception quality determining part (106), and then notifies the selected subchannel to a subchannel allocating part (113).Type: GrantFiled: July 30, 2010Date of Patent: July 5, 2011Assignee: Panasonic CorporationInventor: Akihiko Nishio
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Patent number: 7974579Abstract: A single host device, comprising a plurality of Bluetooth devices, estimates bandwidth requirements such as maximum rates and/or an average data rate expected by each of a plurality of Bluetooth applications to be run on the single host. For each Bluetooth device, available frequencies utilized are determined based on the estimated bandwidth requirements. Each of the plurality of Bluetooth applications is allocated to corresponding one or more Bluetooth devices based on the determined available frequencies so as to, for example, concurrently run corresponding Bluetooth applications on the single host. The determined available frequencies are assigned to corresponding Bluetooth devices based on the estimated bandwidth requirements. The determined available frequencies and the plurality of Bluetooth applications may be reassigned and reallocated, respectively.Type: GrantFiled: December 4, 2009Date of Patent: July 5, 2011Assignee: Broadcom CorporationInventor: Asif Grushkevich
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Patent number: 7970423Abstract: The present invention relates to a method and system for linking a service context to a terminal connection in a network controlling device of a data network, wherein a service indication is forwarded via the terminal connection to the data network, and an association is established between the service context and the terminal connection based on a network response to the service indication. The desired link between the terminal connection and the service context can thus be established at the network controlling device based on the forwarded service indication, e.g. cause value for establishing the terminal connection. Thereby, network resources can be optimized by releasing non-valid terminal connections.Type: GrantFiled: October 31, 2003Date of Patent: June 28, 2011Assignee: Nokia CorporationInventors: Sinikka Sarkkinen, Tuomas Hakuli
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Patent number: 7965651Abstract: The present invention has disclosed a method for setting an active period starting point for a User Equipment (UE) in a Discontinuous Reception (DRX) mode, comprising steps of: a base station calculating and storing a position of the active period starting point for the UE based on predetermined parameters, so as to transmit data to the UE in a corresponding active period; the UE receiving Radio Resource Control (RRC) configuration information from the base station, and detecting whether the DRX mode is configured in it or not; the UE calculating its active period starting point based on predetermined DRX parameters in the received RRC configuration information; the UE starting DRX based on the calculated active period starting point; and the UE continuously monitoring a channel, but not starting DRX, when detecting that the DRX mode has not been configured in it. The present invention has also disclosed an apparatus for setting an active period starting point for a UE in a DRX mode.Type: GrantFiled: December 23, 2008Date of Patent: June 21, 2011Assignee: NTT DoCoMo, Inc.Inventors: Lei Du, Lan Chen, Mikio Iwamura, Umesh Kadaba Anil
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Publication number: 20110143802Abstract: Provided is a paging management system that may transfer a paging message to only a small base station where a terminal is estimated to be positioned, and thereby decrease a traffic amount required to transfer the paging message. A paging management method may include: configuring a virtual tracking area by grouping a plurality of small base stations according to a position of a small base station accessed by a terminal; verifying a final small base station accessed by the terminal when a paging message is to be transmitted to the terminal; and transferring the paging message to small base stations of the virtual tracking area including the final small base station.Type: ApplicationFiled: September 1, 2010Publication date: June 16, 2011Applicant: Electronics and Telecommunications Research InstituteInventors: Jae Sheung SHIN, Sung Gu CHOI, Changki KIM, Soon Gi PARK, Yeon Seung SHIN
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Patent number: 7962164Abstract: A system and method supporting extended network access notification via a broadband access gateway is disclosed. A representative embodiment of the present invention may comprise a wireless interface and may be capable of exchanging multimedia communication between the wireless interface and a broadband network. The gateway may support multimedia communication via access devices that may seamlessly hand off from a wireless wide area network to a personal area network supported by the wireless interface. The hand off may be coordinated by the gateway and the wireless wide area network via the broadband network. A user of an access device may be notified when such a hand off has been automatically initiated, and a user may configure aspects of such hand offs.Type: GrantFiled: October 20, 2009Date of Patent: June 14, 2011Assignee: Broadcom CorporationInventors: Jeyhan Karaoguz, Marc Abrams, Nambirajan Seshadri
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Patent number: 7962147Abstract: A method of receiving information from one or more wireless uplink channels is provided. The method includes receiving information at a media access controller (MAC) from a first set of one or more wireless uplink channels in response to bandwidth allocation map (MAP) messages sent from the MAC and receiving information at the MAC from a second set of one or more wireless uplink channels in response to MAP messages sent by another MAC.Type: GrantFiled: July 11, 2007Date of Patent: June 14, 2011Assignee: Broadcom CorporationInventors: Lisa V. Denney, Gerald Grand, Yushan Lu
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Publication number: 20110136530Abstract: Systems and methods for signal detection are dynamic cell searching are disclosed. In one embodiment, the period according to which a channel is monitored is dynamically adjusted according to a condition of an electronic device. In another embodiment, between a first and second monitoring of a channel of a first cell, the amount of time searching for an second cell is dynamically adjusted according to a charging condition of an electronic device.Type: ApplicationFiled: December 7, 2009Publication date: June 9, 2011Applicant: QUALCOMM, IncorporatedInventor: Yogen N. Deshpande
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Patent number: 7957352Abstract: Various schemes for performing inter-system handoff, e.g., from a UTRAN to a cdma2000 radio access network (RAN) are described. For a MAHHO scheme, the UTRAN uses measurements obtained by a multi-RAT device to determine suitable cdma2000 cell(s) for handover. The measurements are obtained by a candidate frequency search procedure, and the handover is accomplished by a handoff execution procedure. For a MDHHO scheme, the UTRAN relies on location information for the multi-RAT device to select suitable cdma2000 cell(s) for handover. For a CRHHO scheme, a new call is established on the cdma2000 RAN and the pending call on the UTRAN is released in a manner such that the handover appears seamless to the multi-RAT device. The multi-RAT device includes two modem processors that perform processing for the UTRAN and cdma2000 RAN and an application processor that controls the modem processors.Type: GrantFiled: February 24, 2004Date of Patent: June 7, 2011Assignee: QUALCOMM IncorporatedInventors: Vieri Vanghi, Philip Kenneth Price
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Patent number: 7953427Abstract: An apparatus and a system, as well as a method and article, may operate to reserve access for a source device included in a plurality N of source devices to N?1 logical channels accessible by a set of target devices included in the plurality of source devices by creating a static map, wherein N is a positive integer.Type: GrantFiled: May 1, 2008Date of Patent: May 31, 2011Assignee: Marvell International, Ltd.Inventor: Vivek G. Gupta
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Patent number: 7949356Abstract: Communicating among stations in a network includes providing repeated beacon transmissions from at least some of the stations including a first station. The first station is assigned to a first level. Any stations that can reliably receive transmissions from the first station are assigned to a second level. Any stations not assigned to any of the preceding levels that can reliably receive transmissions from the preceding level are assigned to each of one or more higher levels. Timing information at each station in a given level is synchronized according to transmissions received from at least one station in the preceding level.Type: GrantFiled: June 4, 2008Date of Patent: May 24, 2011Assignee: Atheros Communications, Inc.Inventors: Lawrence W. Yonge, III, Srinivas Katar, Manjunath Krishnam
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Patent number: 7949358Abstract: Systems and methods for enabling wireless devices to discover a number of other proximate wireless devices are disclosed. The discovery may include the discovery of network configuration parameters useful for establishing a connection between the wireless devices. The disclosed systems and methods for device discovery may operate in a number of different modes to timely discover wireless devices that receive communications continuously, as well as wireless devices that turn off their wireless receivers for intermittent periods of time. The wireless devices may, for example, communicate using the IEEE 802.11 protocol.Type: GrantFiled: December 21, 2005Date of Patent: May 24, 2011Assignee: Xocyst Transfer AG L.L.C.Inventors: Menzo Wentink, Tobias Jeger
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Patent number: 7949307Abstract: A frame format is generated which can constrain the PAPR at a lower level without limitation in code selections in a radio communication system. The radio communication system with each radio channel constituted by a control channel and a data channel divides a plurality of the radio channels in a frequency direction for mapping to a radio frame format. A control signal position on the control channel is controlled in the radio frame format for each user or service to reduce peak transmission power or a peak-to-average power ratio of a radio communication apparatus.Type: GrantFiled: May 30, 2006Date of Patent: May 24, 2011Assignee: Fujitsu LimitedInventor: Takayoshi Ode
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Patent number: 7948373Abstract: A method for reducing power consumption of sensors (2) within a sensor network (1), wherein a central controller (3) calculates a transmission schedule for said sensors (2) on the basis of a correlation between sensor data transmitted from said sensors (2) to the central controller (3).Type: GrantFiled: November 30, 2007Date of Patent: May 24, 2011Assignee: International Business Machines CorporationInventors: Daniel Nikolaus Bauer, John G. Rooney, Paolo Scotton
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Patent number: 7945207Abstract: Systems and methods for facilitating communications between a monitoring and monitored device using a mobile station are provided. The mobile station includes a wide area network interface for communicating with a monitoring device via a wide area network. The mobile station also includes a short-range wireless network interface for communicating over a short-range wireless communication link with the monitored device. Using these communication links the mobile station can forward data between the monitoring and monitored devices.Type: GrantFiled: June 14, 2006Date of Patent: May 17, 2011Assignee: Nextel Communications Inc.Inventor: Jihad Hermes
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Patent number: 7945273Abstract: A method of operating a portable communication device, wherein: in a response to receiving a paging request from a cellular network over a first communication channel the portable communication device discards the paging request, or delays transmitting a paging response, if the portable communication device has an established GPRS PDP context on a second communication channel requiring an action that can be performed within a predefined time.Type: GrantFiled: December 17, 2004Date of Patent: May 17, 2011Assignee: Siemens AktiengesellschaftInventor: Ludger Flint
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Patent number: 7941175Abstract: A method, system, and apparatus enables lower priority (e.g., access response) messages to be transmitted instead of higher priority (e.g., paging) messages when the lower priority messages become too backlogged in an environment in which the two types of messages share a given capacity. In other words, when an overload situation is detected, the shared capacity is regulated by ensuring that the lower priority messages have at least some bandwidth. For example, if (i) the lower priority messages reach a predetermined number or (ii) a particular lower priority message has been waiting a predetermined period of time, then at least a portion of the higher priority messages are diverted (e.g., delayed or deleted). In one embodiment, the higher priority messages that are initially diverted are a lowest priority subset of the higher priority messages. In another embodiment, a highest priority subset of the lower priority messages are transmitted first as capacity is made available.Type: GrantFiled: December 20, 1999Date of Patent: May 10, 2011Assignee: Telefonaktiebolaget L M Ericsson (PUBL)Inventors: Anders Hoff, Anders Lundström
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Patent number: 7940789Abstract: The invention concerns a method for the rate regulation of radio link probing in a communication network comprising at least a receiver terminal and at least one transmitter terminal, characterized by the steps, at the level of the receiver terminal, of: determining the amount of data sent by each transmitter terminal to the receiver terminal through respective radio links, when a probing of a link is to be made, probing the link corresponding to the transmitter terminal having sent the greatest amount of data.Type: GrantFiled: January 28, 2003Date of Patent: May 10, 2011Assignee: Thomson LicensingInventors: Ludovic Jeanne, Patrick Fontaine, Renaud Dore
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Patent number: 7937100Abstract: 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: September 13, 2010Date of Patent: May 3, 2011Assignee: 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: 7937045Abstract: An ultra wide band device may announce a first idle message on a first ultra wide band sub-band associated with a first beacon group, announce a second idle message on a second ultra wide band sub-band associated with a second beacon group, and switch between the first and the second ultra wide band sub-bands to maintain a first connection with the first beacon group and a second connection with the second beacon group.Type: GrantFiled: October 11, 2007Date of Patent: May 3, 2011Assignee: Sony Ericsson Mobile Communications ABInventor: Anders Niklas Lekselius
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Patent number: 7933620Abstract: A method, system, and device are provided for transmit channel request messaging in wireless half-duplex voice communication systems. A new transmit channel request message (TCRM) is provided and sent over a logical control channel from a receiving device capable of walkie-talkie-like functionality, during an active half-duplex session, to a transmitting device capable of walkie-talkie-like functionality, indicating that the transmit channel is requested. In some embodiments, the invention provides for the display of information on the transmitting device user interface (UI) indicating, during an active session, that another user wishes to talk. The TCRM includes an indication that another device has requested the transmit channel and preferably includes an identification of the device which sent the transmit channel request message. In some embodiments, a qualifier flag in the TCRM is used to specify what, if any, extended functionality in respect of the TCRM is to be performed.Type: GrantFiled: February 27, 2004Date of Patent: April 26, 2011Assignee: Research In Motion LimitedInventors: Padakandla Krishna Rao, Sing Janus Yau
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Patent number: 7933613Abstract: In one illustrative example, a method of monitoring for pages in a wireless communication network by a mobile communication device adapted to operate with a battery power source includes the steps of repeatedly monitoring a quick paging channel of the wireless network for quick pages and, if a quick page is received on the quick paging channel, subsequently monitoring a paging channel of the wireless network for an upcoming page; identifying whether an external power source is connected to the mobile device; and if the external power source is identified as being connected to the mobile device: causing an indication to terminate use of quick paging to be sent to the wireless network and, after sending the indication, repeatedly monitoring the paging channel of the wireless network for pages.Type: GrantFiled: December 12, 2007Date of Patent: April 26, 2011Assignee: Research In Motion LimitedInventor: William Daniel Willey
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Patent number: 7933619Abstract: A method including wirelessly receiving a communication from a wireless device at a receiving device where the communication designated for transmission through the receiving device, recognizing a non-address portion of the communication as indicative of a command for the receiving device, and terminating the communication at the receiving device.Type: GrantFiled: October 2, 2007Date of Patent: April 26, 2011Assignee: Airvana, Corp.Inventor: Woojune Kim
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Patent number: 7933623Abstract: A system and method for dispatch communications are provided. A dispatch station can use one or more alias addresses for communicating with other dispatch stations. The dispatch station can register with a dispatch network for only one of the alias addresses or a number of the alias addresses.Type: GrantFiled: March 13, 2006Date of Patent: April 26, 2011Assignee: Nextel Communications Inc.Inventor: Trinh D. Vu
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Patent number: 7925260Abstract: Spectrum monitoring measurements are made by microcell base stations in a layered cellular network, while not serving calls or engaged in processing calls. The microcell base station transmits a first control message from to a microcell mobile station, to increase the duration for the mobile station to reside in the camping state on a control channel of the microcell base station. The microcell base station transmits a second control message from the microcell base station to the microcell mobile station, to increase the duration for the mobile station to reside in a call origination state while attempting to access a control channel of the microcell base station. Then, to perform the spectrum monitoring measurement, the base station's transmitter is turned off, the receiver is retuned to the frequency to be monitored, a signal strength measurement taken on that frequency, the receiver is retuned back to its assigned frequency, and the transmitter is turned back on, all in a short time interval.Type: GrantFiled: October 23, 2007Date of Patent: April 12, 2011Assignee: AT&T Intellectual Property II, L.P.Inventors: Mathilde Benveniste, Sushil Kumar Prabhu
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Patent number: 7924804Abstract: A method is described for scheduling a plurality of data flows to a plurality of shared channels in a wireless communication system transmitting data packets in time intervals of frames and applying adaptive modulation and coding. The method comprises the steps of determining virtual link adaptation parameters for at least a part of all combinations of data flow and shared channel, based on state information from the respective shared channel, and based on Quality of Service requirements for the respective data flow; calculating potential data rates for said combinations of data flow and shared channel, based on said virtual link adaptation parameters; calculating priority values for said combinations of data flow and shared channel, based on said potential data rates; and selecting, based on the calculated priority values, for at least a part of the shared channels, a data flow for which data is to be transmitted on each of these shared channel during the time interval of one frame.Type: GrantFiled: June 20, 2006Date of Patent: April 12, 2011Assignee: Panasonic CorporationInventors: Christian Wengerter, Jan Ohlhorst
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Patent number: 7925267Abstract: A method for transmitting to one cell a frame including broadcast channels in a cellular wireless communication system in which a base station supports a plurality of physical channels corresponding to the broadcast channels. The base station generates the frame and transmits the generated frame to a mobile station. The frame includes separate broadcast channels for the respective physical channels. A position, in the frame, of a first broadcast channel for a physical channel capable of supporting a mobile station having the worst channel state is fixed in all of transmission frames. The first broadcast channel includes positional information of the remaining broadcast channels except for the first broadcast channel. The mobile station detects only an address of a broadcast channel for a physical channel allocated thereto from the first broadcast channel among broadcast channels belonging to the frame.Type: GrantFiled: January 13, 2006Date of Patent: April 12, 2011Assignee: Samsung Electronics Co., LtdInventors: Young-Ho Jung, Jae-Hak Chung, Seung-Hoon Nam, Yung-Soo Kim, Sung-Hyun Cho
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Patent number: 7925287Abstract: Provided is a method and system for requesting and granting a media transmission right of a PoC user. The method includes a PoC client transmitting an MBCP Request message to a PoC server, the PoC server receiving the MBCP Request message, determining whether a current state corresponds to a media transmission denial condition, and if it is determined that the current state corresponds to a media transmission denial condition, transmitting an MBCP Deny message containing at least one of time information of a media transmission timer and time information of a retry-after timer to the PoC client, and the PoC client receiving the MBCP Deny message, activating the media transmission timer and the retry-after timer using the respective time information, and re-transmitting the MBCP Request message to the PoC server if one of the media transmission timer and the retry-after timer, the retry-after timer having a longer time value, expires.Type: GrantFiled: September 27, 2007Date of Patent: April 12, 2011Assignee: Samsung Electronics Co., LtdInventors: Sung-Jin Park, Sang-Kyung Sung, Ji-Hye Lee, Wuk Kim
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Patent number: 7920514Abstract: In a radio system which allocates resources using as units resource blocks which are formed by frequency components and time components, control information for mobile station devices, and identification information which is used to identify a format for a control information transmission channel which transmits the control information is transmitted from the base station device to the mobile station devices by means of the control information transmission channel.Type: GrantFiled: August 31, 2009Date of Patent: April 5, 2011Assignee: Sharp Kabushiki KaishaInventors: Shohei Yamada, Daiichiro Nakashima, Keiichi Hibi
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Patent number: 7920890Abstract: A transmission power increasing section continuously transmits, from a testing instrument to a mobile communication terminal at predetermined intervals, a transmission power increasing request for increasing transmission power of the mobile communication terminal by a predetermined quantity. A block size extracting section extracts, from a predetermined second physical channel, block size information indicating a block size of transmittable data defined in association with the maximum transmission power set at a first physical channel upon receipt of a plurality of physical channels from the mobile communication terminal for each transmission of the transmission power increasing request. A storage section stores, at least one time, block size information extracted at the block size extracting section.Type: GrantFiled: May 12, 2008Date of Patent: April 5, 2011Assignee: Anritsu CorporationInventor: Kohki Iwata
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Patent number: 7920498Abstract: A method of decoding a control channel in a wireless communication system is provided. In the method, a terminal calculates the number of sub-bursts to be used during a next decoding and positions of the sub-bursts, based on a signal-to-noise ratio of at least one of a first burst or a second burst. Then, the terminal compares the calculated number of sub-bursts with a reference value. When the calculated number of sub-bursts is greater than the reference value, the terminal does not receive more bursts or sub-bursts and instead enters into a sleep state. When the calculated number of sub-bursts is smaller than or equal to the reference value, the terminal receives and decodes only sub-bursts at the calculated positions.Type: GrantFiled: January 17, 2007Date of Patent: April 5, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Il-Yong Jong, Hee-Su Kim, Dong-Wook Seo, Gi-Bong Jeong
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Patent number: 7916675Abstract: A method, terminal device, network element, system and computer program product for controlling discontinuous reception or transmission at a terminal device of a communication network are disclosed. A regular discontinuous reception or transmission cycle of a regular discontinuous reception or transmission scheme is set by using a first control layer, and in addition thereto a shorter temporary discontinuous reception or transmission cycle of an interim discontinuous reception or transmission scheme can be set by using a second control layer. This arrangement provides long discontinuous reception or transmission cycles for power consumption improvements while at the same time ensuring that the network can easily and flexibly shorten these cycles for increased data throughput, if needed.Type: GrantFiled: October 2, 2006Date of Patent: March 29, 2011Assignee: Nokia CorporationInventors: Lars Dalsgaard, Leping Huang, Jukka Ranta
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Patent number: 7912485Abstract: A method and a system for providing signaling in cellular telephone system providing broadcast services to fully integrate broadcast services with the services provided by the cellular telephone systems. The signaling method coordinate interaction between an access network and the subscriber station to allowing the subscriber station to decode the broadcast service, to receive paging messages while receiving the broadcast service, to properly transition between operation states, and other functions known to one of ordinary skill in the art.Type: GrantFiled: September 10, 2004Date of Patent: March 22, 2011Assignee: Qualcomm IncorporatedInventors: Ragulan Sinnarajah, Jun Wang, Sanjeev Arvind Athalye
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Publication number: 20110064048Abstract: In a wireless communication system, time point information is transmitted from a second wireless base station. The time point information indicates a time point at which service information is transmitted from the second wireless base station. Moreover, at the time point indicated by the time point information, the service information is transmitted from the second wireless base station. On the wireless terminal side, firstly, the time point information is obtained in a first non-communication period in which communication with the first wireless base station is temporarily stopped. Then, the service information is obtained in a second non-communication period which is ensured in accordance with the time point indicated by the time point information.Type: ApplicationFiled: September 10, 2010Publication date: March 17, 2011Applicant: FUJITSU LIMITEDInventor: Naoki Oguchi
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Patent number: 7907947Abstract: A cell search control that can save power consumption at a mobile device and perform an appropriate in-service area determination is provided. The mobile device according to the present invention includes: a cell search execution unit (120) for detecting a synchronization channel from a base station to perform cell search; a signal reception determination unit (130) for comparing a measurement X of the signal from the base station with a system information reception threshold A and determining whether or not to receive a system information from the base station; and an in-service area determination unit (170) for comparing the measurement X with a minimum required quality level B contained in the system information and determining whether or not to enter into an in-service area state with the base station. Depending on the result of the in-service area determination unit, the reception threshold A or a waiting time for the cell search may be adjusted, or the base station may be excluded from the cell search.Type: GrantFiled: May 22, 2006Date of Patent: March 15, 2011Assignee: NTT DoCoMo, Inc.Inventors: Takehiro Ida, Masato Maeda, Yukihiko Okumura
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Patent number: 7907906Abstract: The present invention, focusing on the fact that sometimes the channel (HS-SCCH) which notifies that data is to be transmitted will be received but it will be misdetected that there was a notification addressed to the receiving station, is to effectively utilize the channel (HS-SCCH) via which notification is conducted even in cases where the reception result is transmitted repeatedly. An HSDPA-compatible mobile station which, upon detecting that a message addressed to that mobile station was transmitted via HS-SCCH, receives the corresponding HS-PDSCH sub-frame, and which, when transmitting the reception result, repeats the transmission of said reception result n times, said mobile station being characterized in that it comprises a control unit which provides control such that reception processing is performed on the second sub-frame that comes next after the first sub-frame of HS-SCCH on which said detection was performed.Type: GrantFiled: June 7, 2005Date of Patent: March 15, 2011Assignee: Fujitsu LimitedInventors: Syuuichi Murata, Akihide Otonari, Yuka Araikawa, Junichi Niimi, Atsushi Tanaka, Takahiro Matusaki
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Patent number: 7907888Abstract: The present invention relates to a mobile jamming attack method applied in a wireless sensor network (WSN) and method defending the same. The mobile jamming attack method is a power exhaustion denial-of-service attack, possesses mobility and self-learning capability and is unable to be defended with existing defending scheme due to its attack to the routing layer of the WSN; the mobile jamming defending method employs multi-topologies scheme to defend the mobile jamming attack so that the affected area is reduced, the base station can still receive reply packets under the attack, and the jammed area can be roughly located and the track of the mobile jammer can be traced.Type: GrantFiled: April 29, 2008Date of Patent: March 15, 2011Assignee: National Tsing Hua UniversityInventors: Hung-Min Sun, Shih-Pu Hsu, Chien-Ming Chen
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Patent number: 7904778Abstract: In a radio system which allocates resources using as units resource blocks which are formed by frequency components and time components, control information for mobile station devices, and identification information which is used to identify a format for a control information transmission channel which transmits the control information is transmitted from the base station device to the mobile station devices by means of the control information transmission channel.Type: GrantFiled: January 9, 2008Date of Patent: March 8, 2011Assignee: Sharp Kabushiki KaishaInventors: Shohei Yamada, Daiichiro Nakashima, Keiichi Hibi
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Patent number: 7904102Abstract: In a mobile communication system, the information on a downlink DCH actually not used is regarded as removable from the construction target of a TFI and a TFCI, so that a discrepancy of the perception regarding the TFI and the TFCI is not occurred between a base station and a UE (User Equipment). An indicator information in terms of an “Unidirectional DCH Indicator” is generated in an Indicator processing portion of a RNC so that the base station can remove the information regarding the downlink DCH actually not used from the construction target of the TFI and the TFCI, and the information, which is included in the NBAP message, is transmitted to the base station from the NBAP message composition portion. When, at the NBAP message analyzing portion of the base station, it is determined that the “Unidirectional DCH Indicator” is included in this message, the information regarding the downlink DCH actually not used in a TFCI construction portion is removed from the construction target of the TFI and the TFCI.Type: GrantFiled: August 18, 2004Date of Patent: March 8, 2011Assignee: NEC CorporationInventors: Naoto Itaba, Yoshimasa Imamura, Mayu Yamada
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Patent number: 7899478Abstract: A method of acquiring interoperability between a push to talk server and a chat server is disclosed. A push to talk server comprises an interface adapted to receive requests from another server to send messages to push to talk clients via the push to talk server. A chat server comprises an interface adapted to send to the push to talk server a request for permission to send chat messages to push to talk clients. A computer program product is described for communicating messages in a communication network comprising a push to talk server and a chat server.Type: GrantFiled: November 24, 2004Date of Patent: March 1, 2011Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventor: Gabor Fodor
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Patent number: 7894390Abstract: User equipment for communicating data in a communications system comprising a set of user equipment; comprising: a transceiver arranged to receive at least one data packet over a communications channel, wherein the data packet comprises an identifier; and a processor arranged to determine from the identifier if the said user equipment is one of the a subset of user equipment, wherein the processor is arranged to determine if the first identifier is one of the subset of user equipment when the identifier matches a first value if the communications channel is a common channel or a second value if the communications channel is a dedicated channel.Type: GrantFiled: May 3, 2007Date of Patent: February 22, 2011Assignee: Nokia CorporationInventors: Masatoshi Nakamata, Karri Ranta-aho, Juho Pirskanen, Esa Malkamaki
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Patent number: 7894391Abstract: A method for transmitting/receiving resource allocation information in a mobile communication system using a shared control channel. The transmission method includes performing scheduling for resource allocation to a plurality of terminals; generating, in a bitmap, information indicating allocation/non-allocation of resources which are not sequentially allocated beginning from a particular terminal using the scheduling result; and transmitting, over the shared control channel, resource allocation information including a terminal identifier and a resource allocation bitmap of each terminal.Type: GrantFiled: April 24, 2007Date of Patent: February 22, 2011Assignee: Samsung Electronics Co., LtdInventors: Hwan-Joon Kwon, Dong-Hoo Kim, Jae-Chon Yu, Jin-Kyu Han, Jung-Soo Jung, Yu-Chul Kim
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Publication number: 20110039593Abstract: A method and apparatus for performing a carrier management in a broadband wireless communication system supporting multi-carriers are disclosed. A method for a mobile station to perform a carrier management procedure with a base station supporting multiple carriers includes receiving a carrier management command message including an action code indicating a primary carrier change and an action time, on a serving primary carrier, transmitting an acknowledgement message indicating that the carrier management command message is successfully received in the mobile station, on the serving primary carrier, and switching the primary carrier to a target carrier indicated by the carrier management command message at the action time, wherein the action time is set to a value more than a retransmission timer, the retransmission timer is set to a time during which the base station waits for receiving the acknowledgement message in response to the carrier management command message.Type: ApplicationFiled: July 26, 2010Publication date: February 17, 2011Applicant: LG Electronics Inc.Inventors: Eun Jong LEE, Ki Seon Ryu, In Uk Jung, Yong Ho Kim, Young Soo Yuk
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Publication number: 20110039594Abstract: Methods of camping on a hybrid cell and checking access priority and devices therefor are provided. The service of a CSG user is preferably guaranteed by adjusting a UE's camping right and a passing probability of an access priority checking according to the user's contracted characteristic and limit access information of a hybrid cell Node B. At the same time, the initial access delay of a non-CSG user is reduced, the initial access efficiency of the non-CSG user is improved, and the network resource and the UE's power are saved.Type: ApplicationFiled: August 13, 2010Publication date: February 17, 2011Inventors: Liu LIU, Xiaoming She, Lan Chen, Yixue Lei, Mikio Iwamura
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Publication number: 20110039592Abstract: Methods and apparatus for generating, communicating, and/or verifying ownership of expressions are described. Various embodiments are well suited for use in a wireless peer to peer communications systems in which expressions are communicated, e.g., broadcast, in discovery intervals. A first communications device generates an expression from a first public key and an additional input, said first public key corresponding to a private key known to said first communications device. The first device transmits the generated expression on a communications channel used for discovery. A second communications device receives the transmitted expression from the first device. The second device transmits a request signal to the first device associated with the expression; and receives from the first device a signed communication signed using a private key known to said first communications device.Type: ApplicationFiled: August 13, 2009Publication date: February 17, 2011Applicant: QUALCOMM IncorporatedInventors: Wassim Haddad, Georgios Tsirtsis, Vincent D. Park
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Patent number: 7885608Abstract: Methods and devices in a wireless communication system are provided, in which a first portion and a second portion of signals are transmitted on a physical channel to a first transceiver from a second transceiver. A method for controlling transmission parameters in the wireless communication system comprises the steps of: transmitting an indication indicating that the first and the second receiver processing algorithms are used in the first transceiver to process the first and second portions, respectively, of signals received on the physical channel; receiving the indication at the second transceiver; and adjusting, at the second transceiver in response to the indication, a transmission parameter for at least one of the first and second portions of signals to be transmitted on the physical channel to the first transceiver. The indication could be transmitted from the first transceiver, or it could be determined through evaluations carried out at the second transceiver.Type: GrantFiled: December 19, 2005Date of Patent: February 8, 2011Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Johan Nilsson, Bengt Lindoff