Channel Selection Or Allocation Patents (Class 455/464)
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Patent number: 7783020Abstract: This method is used to send data representative of the location of communication terminals (T) to a call center (ECC) without using information processing means in the terminals and to send via heterogeneous communication networks (RP, RPT). This method consists, in the event of requesting the setting up of a telephone call between a terminal (T) and the call center (ECC) by means of a dedicated calling number, in sending the call center a signaling message for setting up the connection and comprising a selected call identifier and a text type message including data representative of the location of the calling terminal (T) and the selected call identifier. At the call center, the method consists in associating the signaling message received by the call center with the location data contained in the text message received by the call center if the signaling message and the text message include the same call identifier.Type: GrantFiled: January 26, 2005Date of Patent: August 24, 2010Assignee: Alcatel LucentInventors: Raymond Gass, Michel Le Creff
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Patent number: 7769397Abstract: Apparatuses and methods are disclosed herein for implementing dormant mode with paging in a WLAN. Power savings in the computing device and reduction in traffic across the network are achieved by requiring a computing device to inform the WLAN of its location only when it crosses a paging area boundary or is to receive IP traffic. Dormant mode with paging is implemented in a protocol that supports dormant functionality and paging functionality but does not itself provide methods or standards for implementing such functionality, such as the IEEE 802.11. The methods and apparatuses disclosed herein provide the methods needed to implement dormant mode with paging in such a protocol. Generally, the methods and apparatuses for implementing dormant mode with paging basically include (1) establishing paging areas; (2) communicating access group information to a computing device; and (3) locating a computing device.Type: GrantFiled: June 4, 2008Date of Patent: August 3, 2010Assignee: NTT Docomo, Inc.Inventors: Daichi Funato, Fujio Watanabe, Toshio Miki
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Patent number: 7756532Abstract: The present invention relates to a method for reestablishing wireless communication between a radio access network (RAN1) and a mobile station (MS1), an apparatus (RNC1) used for implementing the method as well as a radio access network (RAN1) including such an apparatus. A downlink radio failure affecting a first set of radio bearers (RB1, RB2) including at least two radio bearers (RB1, RB2) assigned for communicating user data between the radio access network (RAN1) and the mobile station (MS1) is detected. A second set of radio bearers (RB1) for communicating user data is defined, excluding the radio bearer (RB2) having the highest downlink bit rate in the first set of radio bearers (RB1, RB2). Communication reestablishment is initiated using the second set of radio bearers (RB1).Type: GrantFiled: May 13, 2004Date of Patent: July 13, 2010Inventors: Pontus Wallentin, Per Olof Magnus Magnusson
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Patent number: 7756116Abstract: In one particular embodiment, the secure media includes information sent using secure real-time transfer protocol (sRTP). Supplementary services may include call transfers, forwards/redirects, call hold with music on hold (MOH), call hold with no MoH, call resume, call park, call pickup, call blast etc. In a call flow, a call request may be received from a first device for a second device. The call request may include at least one set of keys and be ready for establishment of an sRTP call. It is then determined that a supplementary service is needed for the call request. For example, a supplementary service may indicate that a call redirect to a third device is required. The gateway then facilitates a supplementary service call with the third device. This is facilitated without contacting the first device to generate a second key after receiving the initial call request.Type: GrantFiled: October 10, 2006Date of Patent: July 13, 2010Assignee: Cisco Technology, Inc.Inventors: Parameswaran Kumarasamy, Soumya Kalahasti, Prasad Miriyala, Sandeep Singh Kohli
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Publication number: 20100173653Abstract: A network can send cell reselection criteria to a mobile terminal. The mobile terminal measures or otherwise obtains radio condition measurements (such as received power, interference, mobile transmit power and the like) and/or geographical location measurements. The mobile can maintain a history of the cell selection criteria and/or measurements. The radio condition measurements are compared against historical data and/or cell reselection criteria and, based on the comparison; the mobile terminal can initiate cell reselection.Type: ApplicationFiled: March 24, 2010Publication date: July 8, 2010Applicant: QUALCOMM IncorporatedInventors: Amer Catovic, Peter H. Rauber
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Patent number: 7751823Abstract: A level of interference to a wireless receiver may be controlled by determining a set of frequencies to be assigned to a wireless transmitter, responsive to an activity factor associated with the wireless transmitter, other than a transmission power level of the wireless transmitter. The set of frequencies is then assigned to the wireless transmitter. Related systems, methods and devices are also described.Type: GrantFiled: February 27, 2007Date of Patent: July 6, 2010Assignee: ATC Technologies, LLCInventor: Peter D. Karabinis
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Patent number: 7751304Abstract: Provided are an apparatus and method for transmitting/receiving a pilot code pattern used to identify a base station. In the base station, a pilot code pattern determiner determines a code set that includes a number of spreading codes based on a specific ID of the base station. A first spreader spreads a pilot symbol mapped onto an FC with a corresponding spreading code according to the determined code set, and controls gain so as to transmit the pilot symbol at a higher signal level than data. A second spreader spreads data symbols mapped onto the FC with spreading codes of the code set except for the spreading code used for the pilot spreading. A mapper groups a spread signal from the first spreader and spread signals from the second spreader on a TFC basis, and outputs signals that constitute each TFC to points of sub-carriers. An IFFT unit performs an IFFT operation on signals output from the mapper. Because the pilot as well as the data is spread, it is easy to implement the base station.Type: GrantFiled: April 8, 2005Date of Patent: July 6, 2010Assignee: Samsung Electronics Co., LtdInventors: Jung-Min Ro, Seok-Hyun Yoon, Young-Kwon Cho, Seung-Hoon Choi, Chang-Ho Suh, Su-Ryong Jeong
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Patent number: 7746818Abstract: The present invention provides a single circuit and a method which can identify the WLAN standard of a packet or the modulation type of a packet. The single circuit includes a shift register, N determinators and decision logic. The shift register is configured to receive several periods of the preamble of the packet. Each of the N determinators is configured to determine whether the WLAN standard, or the modulation type, of the packet matches one of the N WLAN standards, or the N modulation types. Decision logic is configured to decide the WLAN standard, or the modulation type, of the packet.Type: GrantFiled: November 24, 2004Date of Patent: June 29, 2010Assignee: VIA Technologies, Inc.Inventors: Kai Pon Kao, Chih Chia Wang
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Patent number: 7742764Abstract: During operation of a secondary communication system 100, a device will perform spectrum sensing of certain channels (either by itself or as part of a group of nodes 104). When activity is found on a channel from a primary user, other devices will be notified that the channel is not available for use. The device may then modify its spectrum sensing to assist another device (or group of devices) that have not yet found activity on a different set of channels. By assigning additional channels to devices with extra capacity, the overall spectrum-sensing efficiency and performance of the communication system 100 is raised.Type: GrantFiled: March 23, 2007Date of Patent: June 22, 2010Assignee: Motorola, Inc.Inventors: Steven F. Gillig, Stephen L. Kuffner
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Patent number: 7734257Abstract: A dynamic shared forward link channel (or “data” channel) is used to send multicast data to a group of wireless devices, e.g., using a common long code mask for the data channel. Reference power control (PC) bits are also sent on the data channel and used for signal quality estimation. A shared forward link control channel is used to send user-specific signaling to individual wireless devices, e.g., using time division multiplexing (TDM) and a unique long code mask for each wireless device. A shared forward link indicator channel is used to send reverse link (RL) PC bits to the wireless devices, e.g., using TDM. The data channel is jointly power controlled by all wireless devices receiving the data channel. The control and indicator channels are individually power controlled by each wireless device such that the signaling and RL PC bits sent on these channels for the wireless device are reliably received.Type: GrantFiled: July 12, 2004Date of Patent: June 8, 2010Assignee: QUALCOMM IncorporatedInventors: Tao Chen, Baaziz Achour, Brian K. Butler, Edward G. Tiedemann, Jr., Haitao Zhang, Keith W. Saints, Luca Blessent, Yongbin Wei
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Patent number: 7729309Abstract: A transmission area is specified flexibly in accordance with the contents of a flow. An area identification number (SHOG) is specified for each interlaced stream of wireless base stations. The same flow is sent at the same timing (or substantially at the same timing) in the interlaced stream specified for the same SHOG. A wireless terminal determines a neighbor sector or a neighbor wireless base station sending the same flow, in accordance with information given from the wireless base stations, and receives and combines the flows.Type: GrantFiled: October 12, 2006Date of Patent: June 1, 2010Assignee: Hitachi, Ltd.Inventors: Akihiko Yoshida, Shiro Mazawa, Yosuke Takahashi, Daigo Takayanagi
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Patent number: 7720502Abstract: Upon receiving a frame from a transmitting radio device, a propagation attenuation calculator calculates a propagation attenuation amount from information in the received frame and registers a propagation attenuation amount for each transmission rate in a table. When transmitting a frame, a transmission power controller, selects optimum transmission power to the transmission destination radio device from the table and sends the frame at the selected optimum transmission power, and detects whether there is a value smaller than the selected optimum transmission power in the optimum transmission power at a minimum transmission rate of a radio device different from a transmission destination radio device registered in the optimum transmission power table.Type: GrantFiled: February 9, 2005Date of Patent: May 18, 2010Assignee: Mitsubishi Electric CorporationInventors: Hiroyoshi Suga, Yukimasa Nagai
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Patent number: 7720466Abstract: A communication system includes a transmission unit configured to transmit control information relating to plural radio communication systems to a radio terminal through a dedicated control channel commonly used by the plural radio communication systems and for transmitting the control information relating to the plural radio communication systems.Type: GrantFiled: May 28, 2004Date of Patent: May 18, 2010Assignee: NTT DoCoMo, Inc.Inventors: Shinji Takeda, Toru Otsu
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Patent number: 7715847Abstract: Systems and methods are disclosed that facilitate dynamically assigning system resources in a wireless network environment by detecting a resource conflict between an existing resource assignment to one or more existing user devices and a new resource assignment for a subsequent user device. Upon detection of a conflict, a decremental assignment can be provided to the one ore more existing user devices to decrement the existing resource assignment in order to resolve a detected resource conflict. Decremental assignments can be implicit or explicit, and can facilitate mitigating transmission overhead costs due to their relatively small size when compared to conventional complete deassignment/reassignment messages.Type: GrantFiled: May 31, 2005Date of Patent: May 11, 2010Assignee: QUALCOMM IncorporatedInventor: Edward Harrison Teague
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Patent number: 7715868Abstract: A system and method for establishing and maintaining an “always-on” data connection to a wireless network through the use of a back off timer and a service check timer is disclosed. The back off timer is initialized to a determined value when a connection is not established. When the timer expires, a connection attempt is made. As further connection attempts are made, the back off timer is set to ever-increasing values. When the data connection is established, the service check timer is initialized. The data connection status is determined at the expiry of the service check timer. When, at the expiry of the service check timer, the data connection is determined to be lost, the connection method is employed.Type: GrantFiled: October 30, 2007Date of Patent: May 11, 2010Assignee: Research In Motion LimitedInventors: Wen Zhao, Shahid R. Chaudry, T. L. Trevor Plestid, Hao Xue, Grace T. Y. Yeung, Clifford W. Yanoshewski
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Patent number: 7710909Abstract: A wireless communications system employs code-division multiple access information transmission techniques where the uplink and downlink transmission bandwidths are unequal. The higher bandwidth is an integer multiple of the lower bandwidth. The present system requires a base station and a subscriber unit to have two pseudo-random code generators which can be clocked separately. Alignment of the uplink and downlink pseudo-random spreading codes is achieved by truncating the code sequence for the lower speed link at the conclusion of a complete code sequence for the higher speed link.Type: GrantFiled: March 26, 2004Date of Patent: May 4, 2010Assignee: InterDigital Communications, LLCInventor: Fatih M. Ozluturk
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Patent number: 7702336Abstract: Channels are assigned based on co-spatial constraints in wireless network using spatial division multiple access. In one example, the invention includes assigning a co-spatial constraint to each of a plurality of conventional traffic communications channels of a base station, and receiving a request from a user terminal to communicate using a traffic communication channel of the base station. The invention further includes measuring a quality parameter of the request deriving a co-spatial constraint for the user terminal, assigning the user terminal co-spatial constraint to the user terminal, and assigning the user terminal to a traffic communication channels having a channel co-spatial constraint that is no less than the user terminal co-spatial constraint and that has no more assigned radios than permitted by the channel co-spatial constraint.Type: GrantFiled: May 15, 2009Date of Patent: April 20, 2010Assignee: Intel CorporationInventors: Elvino S. Sousa, Athanasios A. Kasapi, Mitchell D. Trott
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Patent number: 7697938Abstract: The present invention provides a method of radio resource allocation. The method comprises associating a plurality of mobile units with a corresponding plurality of scheduling states based on at least one radio resource parameter and at least one rule, associating each mobile unit with one allocation state based on the plurality of scheduling states associated with the mobile units, and allocating radio resource to at least one mobile units based on the allocation states.Type: GrantFiled: July 11, 2006Date of Patent: April 13, 2010Assignee: Alcatel-Lucent USA Inc.Inventors: Jiang Chang, Jun Qiang Liu, Wen Tao Zhang
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Patent number: 7693523Abstract: This invention relates to methods and apparatus for establishing the flexible connections required to serve collaborative Telestar service requests. Telestar refers to services frequently described as being Tele* services such as teleeducation, teleconsultation and telemedicine. A customer node, such as a doctor's office, is connected via a high speed link to a switch which in turn is connected to a broadband network for interconnecting high speed links. The broadband network is connected to a Telestar service provider node. The customer signals requests for connections within the Telestar service provider nodes. These requests are processed by a Tele* service controller to generate request messages to the source and destination nodes to establish a requested connection. Advantageously, the highly flexible arrangements needed for providing optimum Telestar service can be readily controlled by a calling customer.Type: GrantFiled: December 7, 2004Date of Patent: April 6, 2010Assignee: Alcatel-Lucent USA Inc.Inventors: Douglas Anthony Deutsch, Bonnie P. Hitzeman
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Patent number: 7693162Abstract: The communique system for cellular communication networks operates with existing cellular communication networks to provide communique communication services to subscribers. The communique can be unidirectional (broadcast) or bidirectional (interactive) in nature and the extent of the communique can be network-wide broadcast or narrowcast, where one or more cells and/or cell sectors are grouped to cover a predetermined geographic area or demographic population or subscriber interest group to transmit information to subscribers who populate the target audience for the narrowcast transmissions. The said communique system can dynamically allocate the available bandwidth to thereby serve subscribers with more control channel(s) and/or control channel bandwidth and/or communication channels and/or communication channels of greater bandwidth as the need presents itself. The dynamic bandwidth allocation can simultaneously occur in multiple domains: time, code, and frequency.Type: GrantFiled: May 2, 2005Date of Patent: April 6, 2010Assignee: QUALCOMM IncorporatedInventors: Daniel B. McKenna, James M. Graziano
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Patent number: 7689234Abstract: A method and device for transmitting at least one short messaging service message to at least one wireless device are disclosed. The method comprises receiving at least one short message service message request associated with a short message service message. The short message service message is destined for reception by a wireless device (106). Prior to receiving the request, a short message service center (114) determines if a wireless device (106) is registered with a registrar (210) associated with a session initiation protocol network for communicating over a packet data network (102). The short message service message is transmitted to the wireless device (106) through the session initiation protocol network communicating over the packet data network (102) in response to the request and with the determination that the wireless device (106) is registered with the registrar (210).Type: GrantFiled: May 1, 2006Date of Patent: March 30, 2010Assignee: Motorola, Inc.Inventors: Robert Horvath, Susan C. Billings Urbina, Thomas B. Hart
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Patent number: 7689225Abstract: Apparatuses and methods are disclosed herein for implementing dormant mode with paging in a WLAN. Power savings in the computing device and reduction in traffic across the network are achieved by requiring a computing device to inform the WLAN of its location only when it crosses a paging area boundary or is to receive IP traffic. Dormant mode with paging is implemented in a protocol that supports dormant functionality and paging functionality but does not itself provide methods or standards for implementing such functionality, such as the IEEE 802.11. The methods and apparatuses disclosed herein provide the methods needed to implement dormant mode with paging in such a protocol. Generally, the methods and apparatuses for implementing dormant mode with paging basically include (1) establishing paging areas; (2) communicating access group information to a computing device; and (3) locating a computing device.Type: GrantFiled: October 4, 2002Date of Patent: March 30, 2010Assignee: NTT DoCoMo, Inc.Inventors: Daichi Funato, Fujio Watanabe, Toshio Miki
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Patent number: 7689219Abstract: Reject code handling is utilized for a more time-efficient selection of data-capable networks. One illustrative method for use in selecting a wireless communication network for communications involves the steps of causing a request for data connectivity to be transmitted through a first wireless network; reattempting the request for data connectivity through the first wireless network one or more times if a reject code comprising a non-critical error is received in response to the request for data connectivity through the first wireless network; and attempting to select a second wireless network for communications without reattempting the request for data connectivity through the first wireless network one or more times if a reject code comprising a critical error is received in response to the request for data connectivity through the first wireless network.Type: GrantFiled: February 14, 2007Date of Patent: March 30, 2010Assignee: Research In Motion LimitedInventors: Jayasri Gunaratnam, Noushad Naqvi, Bryan Taylor, Craig Ian Haight Swann, Hugh Hind, Bao Quoc Nguyen, Darcy Richard Phipps
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Patent number: 7684810Abstract: The present invention relates to a radio communication trunking system control method. According to the control method, a channel (f1), which is normally used as a control channel, is used as a telephone communication channel when a plurality of channels (f2-fn), used as telephone communication channels, are being used. For example, the channel (fn) has been adapted to be able to operate not only as a telephone communication channel but also as a control channel. When the telephone communication using the channel (fn) is completed, the channel (fn) is established as a control channel in place of the channel (f1). In this way, the currents consumed by wireless units accommodated in a trunking system can be reduced, and the time period for which the trunk operation is inoperative can be significantly reduced.Type: GrantFiled: December 7, 2004Date of Patent: March 23, 2010Assignee: Kabushiki Kaisha KenwoodInventor: Katsuhiko Tachikawa
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Patent number: 7680040Abstract: A process is described to build physical layer frames with a modcode adapted to the signal quality of a destination terminal. Data packets assigned to the same modcode may be sent in the same frame, although packets associated with higher modcodes may be used to complete a frame before switching to the applicable higher modcode for construction of subsequent frames. After an interval, the order of progression is restarted with an out of order packet above a threshold age. Flow control filtering mechanisms and a variable reliability margin may be used to adapt dynamically to the current data traffic conditions.Type: GrantFiled: October 30, 2006Date of Patent: March 16, 2010Assignee: ViaSat, Inc.Inventor: William H. Thesling
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Patent number: 7676231Abstract: Embodiments of methods and apparatus for selecting communication channels based on channel load information are generally described herein. Other embodiments may be described and claimed.Type: GrantFiled: April 13, 2005Date of Patent: March 9, 2010Assignee: Intel CorporationInventors: Mustafa Demirhan, Mousumi Hazra, Hsin-Yuo (York) Liu, Nandakishore Kushalnagar
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Patent number: 7676209Abstract: A method of channel allocation in a cellular communication network wherein a radio channel is to be selected for establishment of a connection in an environment with potentially interfering signals, the method comprising: establishing a radio channel candidate; processing the radio channel candidate with potentially interfering signals and calculating a carrier to interference ratio (CIR) for the selected carrier frequency of the radio channel candidate and the potentially interfering signals; calculating a dominant interference ratio (DIR) being the ratio of the strongest potentially interfering signal with respect to the other potentially interfering signals; and using criteria based on at least one of the dominant interference ratio and the carrier to interference ratio in a selection process for selecting a channel for the connection to be established.Type: GrantFiled: December 20, 2002Date of Patent: March 9, 2010Assignee: Nokia CorporationInventors: Matti Salmenkaita, Jose Gimenez, Pablo Tapia
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Patent number: 7664071Abstract: A method and system for assigning unique words in an SDMA communication system is disclosed. A base station has a set of available unique words from which to select and assign unique words. The base station prioritizes the unique words by determining which unique words are likely to interfere with adjacent base stations, and setting those words to a low priority. Thus, over time, the base station assigns unique words that have better cross correlation characteristics and improved communication sensitivity. The base station discovers the unique words likely to be used in adjacent base stations by direct communication with adjacent base stations, or by communicating with a central office facility. Alternatively, the base station may be made aware of the unique IDs for adjacent base stations, and use these IDs to determine a set of unique words likely to be used by these adjacent base stations.Type: GrantFiled: November 28, 2005Date of Patent: February 16, 2010Assignee: Kyocera CorporationInventor: Tetsuya Yuda
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Patent number: 7664162Abstract: Automatic establishment of a connection between a human interface device and a host transceiver unit. A marriage ID is exchanged in a synchronization step. The marriage ID being used by both the host transceiver and the human interface device to calculate a spread spectrum modulation pattern. In one embodiment the spread spectrum modulation is a frequency hopping spread spectrum modulation.Type: GrantFiled: July 2, 2007Date of Patent: February 16, 2010Assignee: Logitech Europe S.A.Inventors: Mark Thomas Lavelle, Hugues Michel Favey, David Ernest Wegmuller, Eric Schmid, Patrick Paul Loughnane
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Patent number: 7664068Abstract: Certain exemplary embodiments provide a method for providing multiple access to a communication channel, the method comprising: sending a reservation request of a first type into a first selected minislot of a selected frame of an uplink channel when information of a first type is to be sent, the uplink channel having a plurality of frames, each frame having a first selectable number of minislots and a second selectable number of slots, the reservation request of the first type requesting an assignment of at least one slot for transmitting information of the first type in at least one frame that is subsequent to the selected frame.Type: GrantFiled: July 11, 2008Date of Patent: February 16, 2010Assignee: AT&T Corp.Inventor: Jin-Meng Ho
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Patent number: 7664526Abstract: A radio device from which communication is started transmits a confirmation signal to a counterpart, and if an acknowledgement signal is not returned from the counterpart, switches a communication mode to another communication mode. This operation is repeated until the acknowledgement signal is returned from the counterpart. Thus, the communication mode is matched with that of the counterpart, thereby establishing a communication link with the counterpart. A radio device caused to start communication by a second radio device receives a signal from the second radio device. The radio device switches a communication mode to another communication mode if synchronization is failed to be established. This operation is repeated until the synchronization is succeeded to be established. Thus, the communication mode is matched with that of the second radio device to be a communication counterpart, thereby establishing a link with the second radio device.Type: GrantFiled: May 31, 2006Date of Patent: February 16, 2010Assignee: Fujitsu LimitedInventors: Yuki Sakai, Seiichi Nishijima, Naoki Oodate
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Patent number: 7647052Abstract: A gateway (111, 200) and method for routing calls for a wireless communication unit (113) via a selected network (105, 124, 131) comprises an access point (217) supporting a wireless LAN and a modem (203, 229) for wireless connections to a wireless WAN and an interface 227 with a wired local loop (105). The methodology involves using a first network, such as a local loop if available and a second network, such as a packet data WAN 131 otherwise as well as maintaining the busy status of the first network via the second network.Type: GrantFiled: September 16, 2005Date of Patent: January 12, 2010Assignee: Motorola, Inc.Inventors: Daniel F. Tell, Richard J. Malcolm
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Patent number: 7646737Abstract: An apparatus and method are disclosed for system provisioning in a multimode wireless communication device. A multimode wireless communication device may store multiple system provision information internally, or combine system provision information stored internally with removable memory devices, which store additional system provision information. The multimode wireless device may simultaneously have access to a plurality of valid system provision information for a plurality of systems. The wireless device attempts to validate one of the plurality of stored system provision information using a hierarchy. The hierarchy may be established by a phone manufacturer or may be programmed by a service provider or a user. The wireless device attempts to validate system provision information based on the hierarchy. Once a system provision is validated, the device activates service or registers in the system. If a less desirable system is acquired, the device may periodically attempt to validate preferred systems.Type: GrantFiled: August 2, 2002Date of Patent: January 12, 2010Assignee: Qualcomm IncorporatedInventor: Guangming Carl Shi
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Patent number: 7646762Abstract: A communication system that includes a Multimedia Broadcast Multicast Service (MBMS) service provides re-broadcasts of an event to subscribers to the MBMS service. An infrastructure included in the communication system and comprising a server coupled to a RAN controller via a support node receives a first set of MBMS data from an MBMS content provider and conveys the first set of MBMS data along with an associated first Session Description to a subscribed mobile station. The infrastructure then receives a second set of MBMS data from the MBMS content provider, wherein the second set of MBMS data comprises a re-conveyance of the first set of MBMS data, and conveys an MBMS notification along with an associated second Session Description to the mobile station. The mobile station may then determine whether to receive the re-conveyance based on the first and second Session Descriptions.Type: GrantFiled: August 4, 2004Date of Patent: January 12, 2010Assignee: Motorola, Inc.Inventors: Zhijun Cai, Bonnie Chen
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Patent number: 7643461Abstract: A telecommunication system for appointing a frequency assignment mode and ratio for providing a broadcast/multicast service includes at least one access terminal (AT) for receiving a 1xEV-DO service or the BCMCS through a 1xEV-DO system, a base station manager (BSM) for receiving BCMCS control information containing the FA mode and/or the BCMCS assignment ratio and transmitting the received BCMCS control information to a 1xEV-DO access network controller (ANC), and an access network including a 1xEV-DO access network transceiver subsystem (ANTS) and the 1xEV-DO access network controller for temporarily storing the received BCMCS control information and controlling a sort and/or a ratio of a message, which is transmitted to each access terminal, according to the FA mode and/or the BCMCS assignment ratio contained in the BCMCS control information.Type: GrantFiled: November 5, 2004Date of Patent: January 5, 2010Assignee: SK Telecom Co., Ltd.Inventors: Jintae Choi, Jaemoon Lee, Namgyu Kim, Beyongsu Kim, Sangchoon Jeon
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Patent number: 7640035Abstract: Disclosed herein is wireless home LAN system using multiple antennas, and a wireless access point (AP) apparatus in a communication system for providing a plurality of terminals contained in a closed specific area with a wireless access service that includes a plurality of wireless modules arranged in the closed specific area at intervals of a predetermined distance, that are selectively activated, and a control module connected to the wireless modules by wire, for controlling communication performed in the area of the terminals and connection to an external network using the activated wireless modules. The apparatus selectively activates antennas in only a specific area requesting a communication service using a single controller and a plurality of antennas connected to the controller, such that it can solve performance anomalies and inter-cell frequency interference problems. Also, the apparatus controls propagation beams to concentrate on a minimum area, resulting in improved security.Type: GrantFiled: July 12, 2005Date of Patent: December 29, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Kyung-Hun Jang, Pil-Yong Hwang, Jin-Bong Chang, Choong-Hun Lee
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Patent number: 7636573Abstract: Techniques to achieve better utilization of the available resources and robust performance for the downlink and uplink in a multiple-access MIMO system. Techniques are provided to adaptively process data prior to transmission, based on channel state information, to more closely match the data transmission to the capacity of the channel. Various receiver processing techniques are provided to process a data transmission received via multiple antennas at a receiver unit. Adaptive reuse schemes and power back-off are also provided to operate the cells in the system in a manner to further increase the spectral efficiency of the system (e.g., reduce interference, improve coverage, and attain high throughput). Techniques are provided to efficiently schedule data transmission on the downlink and uplink. The scheduling schemes may be designed to optimize transmissions (e.g., maximize throughput) for single or multiple terminals in a manner to meet various constraints and requirements.Type: GrantFiled: January 13, 2006Date of Patent: December 22, 2009Assignee: Qualcomm IncorporatedInventors: Jay R. Walton, Mark Wallace, Steven J. Howard
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Patent number: 7634276Abstract: An intelligent channel allocation method is used for detecting and avoiding a second wireless communication system taking advantage of the characteristic of a first wireless communication system in two different wireless communication system. The first wireless communication system features a narrower bandwidth, while the second wireless communication system has a non-fixed length of a frame for sending/receiving or a broader bandwidth. When these wireless communication system use a same radio frequency (RF) band, the carriers used by them are overlapped. To avoid the mutual interference, the first wireless communication system uses a background scanning mechanism to simultaneously detect the second wireless communication system and a presence range of the second wireless communication system is decided, followed by executing a handover scheme.Type: GrantFiled: December 13, 2005Date of Patent: December 15, 2009Assignee: Nuvoton Technology CorporationInventors: Chao-Yin Liu, Tsan-Kuang Su
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Patent number: 7627326Abstract: Described is a system and method for assigning a frequency to an access point in a wireless network comprising a plurality of access points. The system and method includes accessing a rule-base to obtain a set of rules for the wireless network, accessing a license database to obtain information about relevant wireless nodes in a region, creating a list of possible primary node frequencies from a list of frequencies associated with primary wireless nodes in the license database, creating a list of possible secondary node frequencies from a list of frequencies associated with secondary wireless nodes in the license database, identifying a list of clear frequencies from a set of unused frequencies, selecting a frequency from frequencies in the lists of possible primary node frequencies, possible secondary node frequencies, and clear frequencies and registering the frequency in the license database.Type: GrantFiled: October 14, 2005Date of Patent: December 1, 2009Assignee: AT&T Corp.Inventor: Robert Raymond Miller, II
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Patent number: 7627046Abstract: Method and apparatus for peak-to-amplitude ratio reduction are described. A data carrying signal waveform with sub-carrier signals (S1-1 through S1-M) is obtained. An initial peak reduction waveform (S2(m)) is obtained by selection of a portion of the sub-carrier signals (S1-1 through S1-M) for non-data carrying. The initial peak reduction waveform (S2(m)) is refined by at least one recursive iteration which combines the initial peak reduction waveform (S2(m)) with a circularly time-shifted version thereof to obtain a resultant peak reduction waveform having a peak side lobe amplitude less than that of the initial peak reduction waveform (S2(m)).Type: GrantFiled: April 29, 2005Date of Patent: December 1, 2009Assignee: Xilinx, Inc.Inventors: Christopher H. Dick, Frederic J. Harris
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Patent number: 7620028Abstract: A system and method are described for binding together a plurality of wireless data communications channels, whereby an aggregate throughput improvement is realized. A master channel amongst the channels to be bound is compatible with existing standards-based wireless data communications equipment. The master channel serves to perform MAC association and flow control. Aggregate throughput is improved by sending and receiving either multiple sets of separately encoded packets, commonly encoded packets or redundantly encoded packets.Type: GrantFiled: November 6, 2003Date of Patent: November 17, 2009Assignee: Atheros Communications, Inc.Inventors: Paul Husted, William John McFarland, Jeffrey M. Gilbert
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Patent number: 7620397Abstract: A method for managing scanning of a plurality of channels in a wireless network is disclosed. The method comprises detecting by a station that a first channel in a plurality of channels is being used for a communication by another station, determining a duration of the communication based upon the communication information, setting a Network Allocation Vector for the station based on the determined duration, scanning a number of channels during the determined duration, and returning to the first channel upon at least one of a) completion of the step of scanning and b) an end of the determined duration.Type: GrantFiled: June 27, 2006Date of Patent: November 17, 2009Assignee: Motorola, Inc.Inventors: Byung Seo Kim, Ye Chen
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Patent number: 7616961Abstract: A mobile ad hoc network includes a plurality of wireless mobile nodes and a plurality of wireless communication links connecting the plurality of nodes together over a plurality of channels. The method includes each node monitoring link performance on a first channel, link performance being based upon at least one quality of service (QoS) threshold, and each node scouting one or more other available channels when the monitored link performance on the first channel falls below the QoS threshold. The QoS threshold is preferably based upon at least one of available bandwidth, error rate, end-to-end delay, end-to-end delay variation, hop count, expected path durability, and priority.Type: GrantFiled: April 29, 2002Date of Patent: November 10, 2009Assignee: Harris CorporationInventor: Tom Billhartz
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Patent number: 7613157Abstract: A method and apparatus for processing enhanced uplink scheduling grants are disclosed. A wireless transmit/receive unit (WTRU) detects an absolute grant (AG) and a relative grant (RG). Once the WTRU detects an AG or a RG, a new serving grant (SG) is generated and a hybrid automatic repeat request process may be activated or deactivated depending on whether the received AG is a primary AG or a secondary AG, whether a scheduling mode is a primary AG mode or a secondary AG mode, whether an AG value is set to “INACTIVE” and whether a transmission time interval is 2 ms or 10 ms. A Node-B may send a secondary AG to the WTRU before switching from a primary AG mode to a secondary AG mode and may send the secondary AG only if there is no out-of-date secondary AG exists, which may be detected by implementing a time threshold.Type: GrantFiled: June 29, 2006Date of Patent: November 3, 2009Assignee: InterDigital Technology CorporationInventors: Jung-Lin Pan, Stephen E. Terry, Guodong Zhang, Peter Shaomin Wang
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Patent number: 7613460Abstract: When there is a connection request to a base station supporting adaptive modulation from a terminal supporting adaptive modulation, the base station measures a D wave level that indicates communication environment of the transmission path. When the measured D wave level is not lower than a threshold value of D wave level at which communication is possible by a modulation method (16QAM) having larger multi-value number, the base station permits allocation of a wireless channel to the terminal. Therefore, even when the modulation method is switched from one having smaller multi-value number (?/4 shift QPSK) to one having larger multi-value number (16QAM) during communication after channel allocation to the terminal, degradation of communication quality due to the communication environment of the transmission path can be prevented.Type: GrantFiled: September 1, 2003Date of Patent: November 3, 2009Assignee: Kyocera CorporationInventors: Seiji Matsui, Jun Kitakado
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Patent number: 7614017Abstract: An information processing apparatus is provided and includes a receiving section for receiving content data, a selection area movement instructing section for receiving an operation signal to instruct movement of a selection area and giving an instruction corresponding to the operation signal, a selection area displaying section for moving the selection area according to the instruction given by the selection area movement instructing means, a link display position information extracting section for extracting display position information of a link display from the content data, a link selection instructing section for receiving an operation signal to instruct a selection of a predetermined link and giving an instruction corresponding to the operation signal, a link selection controlling section for selecting the link instructed by the link selection instructing means, and a sending the link destination section for sending a request for replying content data.Type: GrantFiled: July 19, 2006Date of Patent: November 3, 2009Assignee: Sony CorporationInventors: Junichirou Misawa, Masahiro Kobori, Shinichi Yamada
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Patent number: 7599660Abstract: A base station apparatus is provided for adaptively controlling a maximal accommodation channel number per unit area (for example, the coverage area of a cell or sector) in accordance with a traffic quantity without relying upon detachment of a mobile base station and installation of a repeater. Upon inputting of a plurality of baseband signals of a user channel-multiplexed channel group, linear coupling is performed by a weight which is different per area that outputs it, thereby enabling control of the channel density. Additionally, a per-group available channel number is constantly monitored to control the weight while using threshold judgment for the available channel number as a trigger, thus achieving situation-sensitive prompt handleability.Type: GrantFiled: August 4, 2005Date of Patent: October 6, 2009Assignee: Hitachi Communication Technologies, Ltd.Inventor: Kenzaburo Fujishima
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Patent number: 7596133Abstract: Disclosed is a method for transmitting and receiving data according to a channel state in a wireless communication system, the method includes measuring a characteristic of transmission channels used for data transmission and transmitting channel state information of the measured channel characteristic; and selecting sub-channels for data transmission according to the channel state information, and transmitting data through the selected sub-channels.Type: GrantFiled: May 12, 2005Date of Patent: September 29, 2009Assignees: Samsung Electronics Co., Ltd, Seoul National University Industry FoundationInventors: Yo-An Shin, Jong-Won Kim
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Patent number: 7593686Abstract: A wireless handset may connect to a media server in order to receive streaming media content. The wireless handset may send the media server one or more indications of the wireless handset's presentation capabilities. In response, the media server may send the wireless handset a list of media content and transmission modes, and the list of media content and transmission modes may be tailored, at least in part, based on the presentation capabilities of the wireless handset. A user of the wireless handset may then select from the list of media content, and the media server may stream the media content to the wireless handset using the selected transmission mode.Type: GrantFiled: January 29, 2002Date of Patent: September 22, 2009Assignee: Sprint Spectrum L.P.Inventor: Dale Knoop
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Patent number: 7593746Abstract: Techniques to implement MBMS services in a wireless communication system. In one aspect, a method is provided for processing data for transmission to a plurality of terminals. Frames of information bits (which may have variable rates) are provided to a buffer implementing a matrix. The matrix is padded with padding bits based on a particular padding scheme to support variable frame rates. The frames are then coded based on a particular block code to provide parity bits. The frame of information bits and the parity bits are then transmitted to the terminals. In another aspect, a method is provided for controlling the transmit power of a data transmission to a plurality of terminals. In accordance with the method, TPC streams are received from the terminals and processed to obtain a stream of joint power control commands used to adjust the transmit power of the data transmission.Type: GrantFiled: November 18, 2004Date of Patent: September 22, 2009Assignee: QUALCOMM IncorporatedInventors: Serge Willenegger, Tao Chen, Alkinoos Hector Vayanos, Yongbin Wei