Simulcast System Patents (Class 455/503)
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Patent number: 8462765Abstract: Certain embodiments provide methods and apparatus for adjusting timing in an SDMA system. One method for adjusting the timing of packet transmissions in a wireless communications system, that may be performed by an access point, includes receiving ranging signals from a plurality of wireless network nodes, determining timing adjustment information for adjusting starting timing of packet transmissions from the wireless network nodes based on the ranging signals, and communicating the timing adjustment information to the wireless network nodes.Type: GrantFiled: August 18, 2009Date of Patent: June 11, 2013Assignee: QUALCOMM IncorporatedInventors: Santosh P. Abraham, Sameer Vermani, Hemanth Sampath
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Patent number: 8457672Abstract: Wireless client devices within a wireless network exchange data with other wireless devices during particular time slots determined by the network. More particularly, the system generates and wirelessly broadcasts synchronization information to the client devices, where the synchronization information contains individual masks to be applied to bit fields of individual client devices, where said time slots are determined in accordance with the masked bit fields. In such a manner, client devices can be coordinated to communicate with the system in a dynamic real-time tiered manner.Type: GrantFiled: June 7, 2012Date of Patent: June 4, 2013Assignee: Proxense, LLCInventors: David L. Brown, Fred S. Hirt
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Patent number: 8451770Abstract: 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: July 7, 2009Date of Patent: May 28, 2013Assignee: QUALCOMM IncorporatedInventors: Tao Chen, Serge D. Willenegger, Yongbin Wei, Alkinoos H. Vayanos
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Patent number: 8433280Abstract: A method of managing notification message reception of a user equipment corresponding to natural disaster warning for a wireless communication system includes managing the notification message reception according to a reception property of the notification message reception, configuration information broadcasted or paged by a network of the wireless communication system, or a connection state of the user equipment, where the connection state of the UE includes the connection state of the UE corresponding to radio resource control, to a radio access technology, and to cell selection or cell reselection.Type: GrantFiled: December 31, 2008Date of Patent: April 30, 2013Assignee: HTC CorporationInventor: Chih-Hsiang Wu
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Publication number: 20130095871Abstract: Base stations may include a plurality of antenna ports adapted to communicatively couple to respective remote antenna units. A base station simulcast controller module may be coupled with each antenna port, and may be adapted to transmit downlink transmissions over a plurality of remote antenna units, with two or more of the remote antenna units simulcasting downlink transmissions as a simulcasting group. In response to one or more obtained network traffic parameters, the base station simulcast controller module may modify the simulcasting group to include at least one different remote antenna unit. Methods operational on base station may include transmitting downlink transmissions over a plurality of remote antenna units, where two or more of the remote antenna units form a simulcasting group. The simulcasting group can be modified to include at least one different remote antenna unit in response to one or more obtained network traffic parameters.Type: ApplicationFiled: May 1, 2012Publication date: April 18, 2013Applicant: QUALCOMM INCORPORATEDInventors: Joseph B. Soriaga, Christopher Gerard Lott, Jing Sun, Rashid Ahmed Akbar Attar
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Patent number: 8401580Abstract: A mobile device receives a radio simulcast of streaming data and content. The mobile device extracts metadata from the radio simulcast. The mobile device identifies a communication channel to a content provider by comparing components of the metadata with reference data. The mobile device presents a user interface for connecting to the content provider through the communication channel. The mobile device also records the metadata with a time stamp and provides a user interface for displaying the data and time of content received.Type: GrantFiled: May 15, 2009Date of Patent: March 19, 2013Assignee: Apple Inc.Inventors: Freddy A. Anzures, Henry Mason, Lucas Newman
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Patent number: 8400976Abstract: A method and system for allocating shareable wireless transmission resources. A resource pool is established. The resource pool is divided into a plurality of physical layer allocation units usable for wirelessly transmitting control information and traffic data. The allocation units are assigned at the media access control layer for the wireless transmission of the control information and traffic data. The system and method of the present invention also allows mobile stations to be dynamically grouped into multicast groupings to reduce system overhead resource requirements.Type: GrantFiled: April 25, 2011Date of Patent: March 19, 2013Assignee: Apple Inc.Inventors: Hung Zhang, Jianglei Ma, Ming Jia, Mo-Han Fong, Peiying Zhu, Wen Tong
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Patent number: 8385958Abstract: In a cellular radio system data is transmitted to a Dual Carrier mobile station from two different cells during a data transfer. Hereby existing hardware in a GSM system can be utilized more efficiently. The data transmission from the two cells can be frame synchronized. Frame synchronization can for example be obtained by transmitting data from two cells located on the same radio base station site.Type: GrantFiled: April 23, 2007Date of Patent: February 26, 2013Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Benny Lennartson, Hakan Axelsson
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Patent number: 8380232Abstract: A multicast service of a 3GPP Universal Mobile Telecommunications System (UMTS) is disclosed. A multicast service stream identifier is provided so that each multicast area can receive different information for one service or one multicast service can be provided with different QoSs to areas. In addition, the multicast service stream identifier is provided which can selectively receive diverse menus or channels for one multicast service provided in the same area. Thus, by providing the multicast service stream identifier, users' desires for various services can be satisfied.Type: GrantFiled: December 17, 2008Date of Patent: February 19, 2013Assignee: LG Electronics Inc.Inventor: Jin-Young Park
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Patent number: 8369837Abstract: Methods, program products, and systems for task management based on travel distance are disclosed. In general, in one aspect, a method executed on a mobile device can include receiving a request to perform a task in a first subsystem (e.g., an application subsystem) of the mobile device. The request can indicate that the task is to be performed when the mobile device travels at least a threshold distance. The mobile device can determine a duration of silence. The mobile device can configure a second subsystem (e.g., a baseband operating system) of the mobile device to send a notification to the first subsystem notifying that the mobile device has traveled after at least the duration of silence. The first subsystem can receive the notification and determine that the threshold distance has been satisfied based on the received notification. The first subsystem can perform the task upon the determining.Type: GrantFiled: April 7, 2010Date of Patent: February 5, 2013Assignee: Apple Inc.Inventors: Ronald K. Huang, Morgan Grainger
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Patent number: 8363697Abstract: Synchronized broadcast transmits a same broadcast content using a same waveform from multiple transmitters. Transmitters each apply a same spreading code for broadcast transmissions. In a spread-spectrum communication system having a time division multiplexed forward link, a synchronized broadcast transmission is inserted into a broadcast slot. One embodiment employs an Orthogonal Frequency Divisional Multiplex (OFDM) waveform for the synchronized broadcast. An OFDM receiver is then used to process the received synchronized broadcast transmission. An alternate embodiment implements a broadcast Pseudo-random Noise (PN) code for use by multiple transmitters. An equalizer is then employed to estimate the synchronized broadcast transmission.Type: GrantFiled: January 20, 2005Date of Patent: January 29, 2013Assignee: Qualcomm IncorporatedInventors: Matthew S. Grob, Peter J. Black, Srikant Jayaraman, Paul E. Jacobs
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Patent number: 8355354Abstract: To broadcast different types of transmission having different tiers of coverage in a wireless broadcast network, each base station processes data for a wide-area transmission in accordance with a first mode (or coding and modulation scheme) to generate data symbols for the wide-area transmission and processes data for a local transmission in accordance with a second mode to generate data symbols for the local transmission. The first and second modes are selected based on the desired coverage for wide-area and local transmissions, respectively. The base station also generates pilots and overhead information for local and wide-area transmissions. The data, pilots, and overhead information for local and wide-area transmissions are multiplexed onto their transmission spans, which may be different sets of frequency subbands, different time segments, or different groups of subbands in different time segments. More than two different types of transmission may also be multiplexed and broadcast.Type: GrantFiled: December 23, 2009Date of Patent: January 15, 2013Assignee: QUALCOMM IncorporatedInventors: Rajiv Vijayan, Fuyun Ling, Gordon K. Walker, Murali R. Chari, Ashok Mantravadi, Anand D. Subramaniam
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Patent number: 8331966Abstract: A computer system receives information snippets from a mobile device. The information snippets are extracted from a simulcast of a data stream of a radio broadcast received on the mobile device. The system identifies content metadata from the information snippets. The content metadata describes one or more features of the radio broadcast. The system selects a radio station from a radio station repository based on attributes of the radio station. One of the selection criteria is that the attributes of the radio station match at least a portion of the content metadata. The system presents a reference to the radio station to the mobile device as a recommendation.Type: GrantFiled: May 15, 2009Date of Patent: December 11, 2012Assignee: Apple Inc.Inventors: Freddy A. Anzures, Henry Mason, Lucas Newman
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Patent number: 8311563Abstract: The present invention relates to a method for transmitting and receiving information for configuring a point-to-multipoint control channel in a wireless communication system. A network generates configuration information for configuring a point-to-multipoint control channel (MCCH) and transmits the configuration information to a mobile terminal. The configuration information comprises at least one of a modification period, a repetition period, a SFN-MCCH-Offset comprising an offset between a transmission of a first frame of a modification period and a system frame number (SFN) of a cell in which the configuration information is transmitted, and a number of transmission time intervals (TTIs) the mobile terminal will read at each beginning of a repetition period.Type: GrantFiled: April 28, 2009Date of Patent: November 13, 2012Assignee: LG Electronics Inc.Inventors: Young Dae Lee, Sung Duck Chun, Seung June Yi
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Patent number: 8285326Abstract: Methods, devices and systems for integrating multiple communication systems including multiple wireless communication protocols into a single system are discussed. In an illustrative example, a communication system includes a device adapted to communicate via first and second wireless communication protocols. The system may further include local area network or other wired sub-network, with the device adapted for first and second protocols also being adapted to operate using the local area network or other wired sub-network.Type: GrantFiled: December 30, 2005Date of Patent: October 9, 2012Assignee: Honeywell International Inc.Inventors: Joseph P. Carmody, Yu-Gene T. Chen, Patrick S. Gonia, Paul F. McLaughlin
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Patent number: 8280457Abstract: Techniques for use in communicating messages to a mobile device operative in a wireless network are described. A communication network receives a broadcast message which includes a protocol type identifier in a protocol type identifier field. The communication network identifies whether the protocol type of the broadcast message matches one of a plurality of protocol types stored in association with an identification of the mobile device. If the protocol type of the broadcast message matches one of the stored protocol types, then the communication network produces, from the broadcast message, a unicast message which includes information from the broadcast message, and causes the unicast message to be sent to the mobile device in the wireless network.Type: GrantFiled: April 1, 2011Date of Patent: October 2, 2012Assignee: Research In Motion LimitedInventors: Leonardo Jose Silva Salomone, Tom Nagy, Arjuna Sivasithambaresan, Matt Milardovic
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Patent number: 8270332Abstract: Provided are a wireless communication base station device and a wireless communication method by which overhead is reduced in MBMS of LTE. An MBMS SIB creating section (106) creates an MCCH as an MBMS SIB of notification information, and an MBMS SB creating section (104) creates an MBMS SB, including scheduling information of the MBMS SIB. An MIB creating section (103) creates an MIB, including scheduling information of the MBMS SB, and a transmitting section (107) transmits the created MBMS SIB, MBMS SB AND MIB to a terminal by following the scheduling made by a scheduling section (101).Type: GrantFiled: October 12, 2007Date of Patent: September 18, 2012Assignee: Panasonic CorporationInventors: Takahisa Aoyama, Akito Fukui
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Patent number: 8254873Abstract: In a mobile communication system, the radio device RNC, Node B includes: a creation unit 11 configured to create, on the basis of the notification information received from the distribution server, simplified information indicating content of the notification information, and detailed information indicating content of the notification information with a greater amount of information than that of the simplified information; a simplified information transmitter unit 12, 34 configured to transmit the simplified information to the mobile station by use of a control channel for starting the broadcast communication; and a detailed information transmitter unit 15, 35 configured to transmit the detailed information to the mobile station by use of a traffic channel for broadcast communication, and the mobile station UE includes: a display unit 55, 58 configured to display the received detailed information, after displaying the received simplified information.Type: GrantFiled: June 19, 2007Date of Patent: August 28, 2012Assignee: NTT DoCoMo, Inc.Inventors: Ryo Kitahara, Minami Ishii, Katsuhiro Noguchi, Kota Fujimura
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Patent number: 8229495Abstract: A method and apparatus for ranked presentation of user-interface display elements is disclosed. A device will hold data that indicates a priority order for selecting user-interface display elements, such as buttons, labels, etc., to present. When a user-interface skin is loaded onto the device and the skin has a limited number of slots (i.e., segments, spaces, places, etc.) for presenting user-interface display elements, the priority order will be used as a basis to select which elements to present in the available slots. For example, if the skin has only five slots for presentation of user-interface display elements, just the top five elements in the priority list will be presented. Those top five elements can then be presented in any order, such as in priority order, alphabetical order, or randomly.Type: GrantFiled: September 29, 2009Date of Patent: July 24, 2012Assignee: Sprint Spectrum L.P.Inventor: Eric S. Wolter
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Patent number: 8219129Abstract: Wireless client devices within a wireless network exchange data with other wireless devices during particular time slots determined by the network. More particularly, the system generates and wirelessly broadcasts synchronization information to the client devices, where the synchronization information contains individual masks to be applied to bit fields of individual client devices, where said time slots are determined in accordance with the masked bit fields. In such a manner, client devices can be coordinated to communicate with the system in a dynamic real-time tiered manner.Type: GrantFiled: January 5, 2007Date of Patent: July 10, 2012Assignee: Proxense, LLCInventors: David L. Brown, Fred S. Hirt
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Patent number: 8219130Abstract: A method for facilitating an equalization of a simulcast signal comprising: (a) receiving a simulcast signal comprising known data simulcast from at least two different sites; (b) generating a number of simulated simulcast signals, each simulated simulcast signal being based on at least two sites transmitting said known data with a presumed time delay, each simulated simulcast signal having a different presumed time delay; (c) determining which of said simulated simulcast signals is an optimum simulated simulcast signal that correlates most closely to said simulcast signal; and (d) providing time delay data of said optimum simulated simulcast signal for use in equalization of said simulcast signal.Type: GrantFiled: February 12, 2010Date of Patent: July 10, 2012Assignee: Pine Valley Investments, Inc.Inventor: Mac Lamar Hartless
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Patent number: 8213858Abstract: A wireless display system is disclosed comprising a host-side data communication apparatus connected to a host and configured to acquire media data containing at least display data from the hardware of the host, generate data message and transfer the data message wirelessly, and a display-device side data communication apparatus configured to receive the data message transferred wirelessly, interpret it into media data and then output to a display device. With the system of the present invention, CPU does not need to execute a screen-capturing program to acquire display information from a display memory unit and thus has a reduced work load, and transmission delay can also be reduced.Type: GrantFiled: December 5, 2006Date of Patent: July 3, 2012Assignee: Lenovo (Beijing) LimitedInventors: Wei Wei, Zihua Guo
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Patent number: 8204540Abstract: The present invention relates to a mobile device for recording data that includes recording unit that records data, a memory that stores the recorded data, a detecting unit that detects a server that receives the recorded data via a wireless communication system, and a transmitting unit that automatically transmits recorded data to a detected server via the wireless communication system without any user interaction when the detecting unit detects the server.Type: GrantFiled: September 17, 2009Date of Patent: June 19, 2012Assignee: Sony CorporationInventor: Fritz Hohl
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Patent number: 8180290Abstract: A wireless communication method capable of preventing communication interference and cut-off in one-to-multi wireless communication.Type: GrantFiled: August 23, 2002Date of Patent: May 15, 2012Assignee: Samsung Electronics Co., Ltd.Inventor: Dong-Sik Cho
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Patent number: 8174364Abstract: An RFID reader requires significant power supply current, upwards or beyond 0.5 amps. Much of this power is expended to activate the reader's radio frequency transmitter. For example, the reader's transmitter may constantly be active awaiting a RFID tag entering within its electromagnetic field. Sometimes an adequate power source, such as AC mains, is not available to provide continuous operation and instead a battery is powers the reader. This invention detects that a RFID tag is within reader range without using the reader's RF transmitter at full power. As a RFID tag is brought within range of a reader's antenna there is significant mutual inductance coupling between the tag antenna and the reader's antenna and this invention provides a sensitive detector of this mutual inductance. The detection of mutual inductance automatically triggers the reader's transmitter to a higher power which is necessary to fully activate the RFID tag.Type: GrantFiled: April 12, 2010Date of Patent: May 8, 2012Inventor: Michael Kenneth Pedigo
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Patent number: 8151335Abstract: A proxy authentication method and apparatus is described for use in user authentication, e.g. for payment transactions. The authentication is carried out before the transaction between a electronic, e.g. digital identification device and a person terminal. Verification information is entered at the personal terminal to authenticate the user and if this is successful a verification flag is set in the digital identification device. The status of this flag, or an encrypted version thereof can be used by a transaction terminal of evidence that the user has been authenticated without having to transmit any secret identification information to the transaction terminal.Type: GrantFiled: December 4, 2006Date of Patent: April 3, 2012Assignee: MasterCard International IncorporatedInventors: John Wankmueller, Cristian Radu, David Anthony Roberts
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Patent number: 8149726Abstract: A method for performing wireless communication in a network by at least one of a plurality of network nodes, the network including a network coordinator, the plurality of network nodes, and a plurality of subscriber stations. The method includes sending, by at least one of the plurality of network nodes, delay data to at least one of the network coordinator or one or more upstream network nodes. The delay data includes a network node delay data associated with the at least one of the plurality of network nodes, and the one or more upstream network nodes include any of the plurality of network nodes located along an upstream transmission path between the at least one network node and the network coordinator. In addition, the method includes receiving, from at least one of the network coordinator or the one or more upstream network nodes, target delay data, and receiving, from at least one of the network coordinator or the one or more upstream network nodes, a message.Type: GrantFiled: December 6, 2007Date of Patent: April 3, 2012Assignees: Industrial Technology Research Institute, National Taiwan UniversityInventor: Hung-Yu Wei
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Patent number: 8145266Abstract: A portable audio/video playback apparatus of the present invention comprises an apparatus main body 1 and a broadcast receiver unit 4 removably attached to the apparatus main body. The apparatus main body 1 includes interfaces 32, 33 for connecting thereto the broadcast receiver unit; an audio processing circuit 22 connected to one interface 32 for processing and feeding an external audio signal to a speaker 24; and a video processing circuit 27 connected to the other interface 33 for processing and feeding an external video signal to a display 13. The broadcast receiver unit 4 includes interfaces 55, 56 connected to the foregoing interfaces 32, 33 and decoders 47, 48 for feeding an audio signal and a video signal included in a received television broadcast signal to the interfaces 55, 56.Type: GrantFiled: February 25, 2004Date of Patent: March 27, 2012Assignee: Kyocera CorporationInventors: Tateo Toyama, Masaru Kato
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Patent number: 8140099Abstract: Data is synchronized between a mobile device and a computing device over a wireless link. Synchronization operations are scheduled according to a synchronization schedule that is based on a current time of day. In one embodiment, the day can be divided into different time periods by the user. The user can also specify the frequency with which synchronization operations are to be performed during each specified period. Further, the user can specify an override schedule which overrides the ordinary synchronization schedule established by the user when override criteria are present. For instance, if the mobile device is roaming, the synchronization schedule will be dictated by the override schedule, which may sync much less often, or not until a specific user synchronization request has been received. The present invention can be embodied both as a method and as a apparatus.Type: GrantFiled: June 30, 2011Date of Patent: March 20, 2012Assignee: Microsoft CorporationInventors: Sandra I. Vargas, David R. Williamson, Gary W. Hall, Michael A. Foster, Juan V. Esteve Balducci
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Patent number: 8134938Abstract: The present invention is related to controlling delay in a wireless communication system. The present invention includes receiving a signal from a plurality of base stations, measuring at least one signal delay of each of the plurality of base stations, reporting the measured at least one signal delay of each base station to a controller controlling the plurality of base stations, and receiving an adjusted signal from each of the plurality of base stations as a result of reporting the measured at least one signal delay, wherein each adjusted signal is received in a synchronous manner.Type: GrantFiled: May 9, 2008Date of Patent: March 13, 2012Assignee: LG ElectronicsInventors: Byung K. Yi, Young C. Yoon, Li-Hsiang Sun, Shu Wang, Sang G. Kim
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Patent number: 8095086Abstract: The invention relates to a FM simulcast broadcast signal, in which an analogue and digital signal are combined for a transmission in a transmission channel with limited bandwidth as a total signal (s), which has a first phase speed (vs), an auxiliary signal (hs) is prepared in the complex region from the modulated digital signal (ds) for transmission and the FM modulated analogue signal (as) for transmission, which has a second phase speed (vas). Said auxiliary signal (hs) is placed in a used or at least largely unused frequency range of the digital signal (ds). The total signal (s) for transmission comprises the auxiliary signal (hs) and the FM modulated digital signal (ds) and the first phase speed (vs) of the total signal (s) corresponds at least approximately to the second phase speed (vas) of the analogue signal (as).Type: GrantFiled: March 5, 2007Date of Patent: January 10, 2012Assignee: Trident Microsystems (Far East) Ltd.Inventors: Carsten Noeske, Christian Bock
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Patent number: 8081610Abstract: Modifying remote service discovery based on presence involves identifying service discovery data using ad-hoc, peer-to-peer, service discovery protocols of a local network. The service discovery data is aggregated via an entity of the local network. Presence data associated with a remote device located outside of the local network is identified and the aggregated service discovery data is altered based on the presence data. The altered aggregated service discovery data is made available to the remote device using out-of-band communications. The out-of-band communications are different from the service discovery protocols of the local network.Type: GrantFiled: May 9, 2007Date of Patent: December 20, 2011Inventors: Vlad Stirbu, Dan Marinescu
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Patent number: 8081999Abstract: A system and method for minimizing signalling loads due to mutual exchanges of information between neighboring cells in which the same session is transmitted, and for reducing the time required to transmit MBMS neighbor cell information messages in a serving cell when a higher level of signalling occurs, wherein all broadcast control channel (BCCH) carriers indicated in a BCCH allocation are monitored by a mobile station (MS). A list of the cells having the strongest non-serving carriers is updated as often as the duration of the running average for measurements of the BCCH allocation. Base transceiver station identity codes (BSICs) and neighboring cell indexes of BCCH carriers are added to an uplink radio link control/medium access control (RLC/MAC) message that is transmitted to a network.Type: GrantFiled: August 16, 2005Date of Patent: December 20, 2011Assignee: Nokia CorporationInventors: Rami Vaittinen, Harri Jokinen, Guillaume Sebire
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Patent number: 8078109Abstract: Methods, systems, and apparatus, for operation of concurrently coordinated microwave paths in coordinated frequency bands are described. In one aspect, a system includes a plurality of primary sites, each primary site including a transceiver portion configured to transmit to or receive from the transceiver portion of another primary site on a coordinated microwave path on a first frequency; a secondary site, the secondary site located in an optimized area, the secondary site including a transceiver portion, the transceiver portion of the secondary site configured to transmit to the transceiver portion of a primary site on a concurrently coordinated microwave path on the first frequency, where the optimized area is an area where interference caused by the secondary site to other transceivers that operate on a different coordinated microwave path on the first frequency is less than interference caused by a primary site to the other transceivers.Type: GrantFiled: April 14, 2008Date of Patent: December 13, 2011Assignee: Wireless Stategies, Inc.Inventor: Michael Mulcay
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Patent number: 8068832Abstract: A method and system for performing multicast broadcast handover in a wireless data network are disclosed. Each cell broadcasts administrative announcements over a logical channel to mobile terminals. The announcements indicate which multicast broadcasts are available in specified cells, as well as connection information for each cell. The mobile terminals may tune to a multicast broadcast as defined by the administrative announcements. While tuned to the multicast, the mobile terminal continues to receive administrative announcements. As the broadcast fades out or is otherwise interrupted, the mobile terminal can retune to the same multicast broadcast in another cell, based on the cell connection information included in the previously received administrative announcements.Type: GrantFiled: November 19, 2001Date of Patent: November 29, 2011Assignee: Nokia CorporationInventors: Toni Paila, Jani Paikela, Lin Xu, Juha-Pekka Luoma, Rod Walsh
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Patent number: 8064411Abstract: In an example embodiment, a method for speculative power saving. The beginning portion of a header (e.g. a physical layer convergence protocol “PLCP” header of a beacon) is processed to determine whether a predefined bit is set that indicates whether the frame contains any delivery traffic indication for buffered multicast and/or unicast frames. If the bit is set, indicating the frame contains no delivery traffic indication of buffered frames, receiving and processing of the frame stops (e.g. the remainder of the PPDU is not processed) and the receiver switches to a power save state. In an example embodiment, if a predefined NULL beacon frame is detected, receiving and processing of the frame (and PPDU) stops and the receiver switches to a power save state.Type: GrantFiled: January 31, 2007Date of Patent: November 22, 2011Assignee: Cisco Technology, Inc.Inventor: Peter W. Ecclesine
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Patent number: 8055187Abstract: Opportunity of enjoying video and music is enlarged. A content reproducing device is used in a contents exchange system including a plurality of contents reproducing devices. The content reproducing device includes a short range communication unit, a memory, a control unit, and a speaker. The short range communication unit communicates request information, response information, content data and flag information to/from content reproducing devices. The control unit controls the short range communication unit so that content data is transmitted. The control unit controls the memory such that the content data and the flag information received by the short range communication unit are stored.Type: GrantFiled: June 18, 2008Date of Patent: November 8, 2011Assignee: Funai Electric Co., Ltd.Inventor: Hideki Tanabe
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Patent number: 8050679Abstract: A method is disclosed for transferring preferred frequency information in a mobile communication system which establishes a preferred frequency layer and a non-preferred frequency layer for a Multimedia Broadcast/Multicast Service (MBMS) service. The method involves the steps of determining at least one preferred frequency of the MBMS service when a session of the MBMS service starts, generating the preferred frequency information representing said at least one preferred frequency, and transmitting the preferred frequency information to at least one serving radio network controller for managing communication of user equipments intended to receive the MBMS service.Type: GrantFiled: April 25, 2008Date of Patent: November 1, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: No-Jun Kwak, Kyeong-In Jeong, Kook-Heui Lee
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Patent number: 8027642Abstract: A frequency translating repeater (200) for use in a wireless local area network includes a cancellation unit. Canceller (402) is controlled by control (401) to provide an injection signal for canceling leakage in a receive signal path. Reference coupler (403) provides a reference signal from the transmit signal, injection coupler (404) injects a correction signal, and sample coupler (405) provides a sample for feedback. A processor (510) receives the sample signal through a detector (415). Although the present invention is intended for a frequency translating repeater, it has broad applications in radio transceivers in general. One specific application is with frequency division duplex (FDD) handsets or base stations utilizing CDMA technologies such as W-CDMA and IS-2000 or 1XEV-DV/DO.Type: GrantFiled: April 6, 2004Date of Patent: September 27, 2011Assignee: QUALCOMM IncorporatedInventors: James A. Proctor, Jr., Kenneth M. Gainey
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Patent number: 8027334Abstract: The advances disclosed herewith delimit an improved method and system for smoothly rating and billing Multimedia Messaging Service (MMS). Implemented as part of a computer program product, the solution seeking the protection of Letters Patent, represents a comprehensive real-time solution for rating incoming and outgoing MMS messages which, with a view towards simplicity and efficacy of purpose, enables wireless/mobile subscribers to maintain a single account for both voice and messaging (MMS) services.Type: GrantFiled: September 5, 2008Date of Patent: September 27, 2011Assignee: RedKnee, Inc.Inventors: Shailesh Lakhani, Jacky Chan
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Patent number: 8018950Abstract: A method for synchronizing network elements to a global clock derived from the GPS clock acquired by a plurality of base stations. The global clock is distributed to controllers of various networks, and from there to network access devices. The network access devices further distribute the global clock to various wire-line and local wireless networks and from there, to the users served by these networks. The user equipment is enabled with a simple clock discipliner that adjusts the local clock to the global clock, resulting in a reliable synchronization across the converged communication networks.Type: GrantFiled: March 17, 2008Date of Patent: September 13, 2011Assignee: Wi-LAN, Inc.Inventors: Shiquan Wu, Jung Yee
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Patent number: 8014270Abstract: A wireless receiver that sorts packets including a packet detector, multiple correlators, and multiple packet processors. Each correlator correlates a received signal according to packet type. Each packet processor processes the received signal according to packet type. A signal power detector may be provided to initially qualify the received signal as containing a packet, and the correlators determine whether a packet is present. The correlators may be configured for sequential or simultaneous correlation. For the simultaneous correlator configuration, a correlation monitor is provided to monitor correlation results to determine if the received signal contains a packet, and if so, to determine packet type. A low SNR packet detector may be provided which correlates the received signal to detect weak packet signals.Type: GrantFiled: April 2, 2008Date of Patent: September 6, 2011Assignee: Xocyst Transfer AG L.L.C.Inventors: Steven D. Halford, Perry W. Frogge
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Patent number: 7995512Abstract: A method of transmitting data packets in a mobile communication system using at least one relay station (RS) and using at least two frequency carriers is disclosed. More specifically, the method comprises transmitting at least one subpacket of a first data packet to a mobile station (MS) on a first frequency carrier, and transmitting at least one subpacket of a second data packet to the MS via the at least one RS.Type: GrantFiled: September 28, 2006Date of Patent: August 9, 2011Assignee: LG Electronics Inc.Inventors: Sang Gook Kim, Young C. Yoon, Li-Hsiang Sun, Shu Wang
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Patent number: 7986704Abstract: A method and system for simulcasting multimedia information via a broadband access gateway and a wireless wide area network, is disclosed. An access device such as, for example, a mobile multimedia handset engaged in a call served by a wireless wide area network may migrate to within the coverage area of an associated broadband access gateway with a wireless interface. The wireless wide area network may simulcast call content to the broadband access gateway via a broadband network. A user in the proximity of the broadband access gateway may be notified of the simulcasting of the call, and may elect to continue the call via a WLAN/PAN-enabled wireless handset or other access device that is compatible with the wired and/or wireless interfaces of the broadband access gateway.Type: GrantFiled: March 16, 2010Date of Patent: July 26, 2011Assignee: Broadcom CorporationInventors: Jeyhan Karaoguz, James D. Bennett, Nambirajan Seshadri
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Patent number: 7969938Abstract: A method and apparatus for notifying a UE of the PFLs of MBMS services in a new cell when the UE moves from an old cell to a new cell in a CELL_DCH state in the case of FLC are provided. An SRNC informs the UE of the PFLs of UE-joined MBMS services in the new cell. If the new cell is managed by a DRNC, the DRNC informs the SRNC of the PFLs of the UE-joined MBMS services and the SRNC transmits the PFL information to the UE so that the UE can move to a corresponding PFL.Type: GrantFiled: December 23, 2005Date of Patent: June 28, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: No-Jun Kwak, Kyeong-In Jeong, Kook-Heui Lee
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Patent number: 7965696Abstract: A slave station which transmits/receives signals to/from a master station, the slave station includes: a transmitting unit and receiving unit for transmitting/receiving signals regarding the master station; a storing unit; an input unit; wherein under a control by a control unit, the transmitting unit transmits a transmission request for transmitting multicast data to the master station in accordance with a timing of power-on or an input by the input unit; the receiving unit receives information of a number of times of transmission for requested multicast data from the master station and stores the number in the storing unit; and after receiving the multicast data the number of times of transmission stored in the storing unit, the control unit determines presence of absence of lacking data which have not been received and, transmits a retransmission request for requesting the lacking data in a case of presence the lacking data.Type: GrantFiled: March 26, 2009Date of Patent: June 21, 2011Assignee: Hitachi, Ltd.Inventors: Daigo Takayanagi, Shiro Mazawa, Yosuke Takahashi, Akihiko Yoshida
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Patent number: 7962162Abstract: A wireless simulcast system, such as an OFDM network, includes the ability to determine the location of a mobile user. Location-based services can be provided to the mobile user.Type: GrantFiled: August 7, 2001Date of Patent: June 14, 2011Assignee: AT&T Intellectual Property II, L.P.Inventor: Bruce E. McNair
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Patent number: 7953457Abstract: Methods and apparatus for use in reducing power consumption in battery-powered mobile communication devices in wireless local area networks (WLANs) are described. In one illustrative example, a mobile device in a WLAN is configured to normally refrain from receiving broadcast messages so that it may remain in a low power mode of operation. A network server is configured to convert broadcast messages into unicast messages for receipt by the mobile device only if the message or protocol type of the broadcast message is one in which the mobile device needs to process. As the mobile device is still configured to receive unicast messages, it will receive and decode such a unicast message and process the broadcast information within it accordingly. Advantageously, battery power is conserved at the mobile device.Type: GrantFiled: April 28, 2006Date of Patent: May 31, 2011Assignee: Research In Motion LimitedInventors: Leonardo Salomone, Tom Nagy, Matt Milardovic, Arjuna Sivasithambaresa
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Patent number: 7941150Abstract: A method and system for allocating shareable wireless transmission resources. A resource pool is established. The resource pool is divided into a plurality of physical layer allocation units usable for wirelessly transmitting control information and traffic data. The allocation units are assigned at the media access control layer for the wireless transmission of the control information and traffic data. The system and method of the present invention also allows mobile stations to be dynamically grouped into multicast groupings to reduce system overhead resource requirements.Type: GrantFiled: May 17, 2006Date of Patent: May 10, 2011Assignee: Nortel Networks LimitedInventors: Hang Zhang, Jianglei Ma, Ming Jia, Mo-Han Fong, Peiying Zhu, Wen Tong
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Patent number: 7937098Abstract: A system for providing online access to on-hold messages: an interface by which an end user can access at least one on-hold message from an online database; a system for downloading at least one message as a file to be played on an end user phone answering system. The downloaded message comprises an MP3 file and may be downloaded onto a flash card.Type: GrantFiled: March 5, 2004Date of Patent: May 3, 2011Inventor: Clayton B. Burton, Jr.