Plural Usage Of Common Antenna Patents (Class 370/339)
-
Patent number: 8665797Abstract: The present invention discloses an information feedback method. The method comprises steps of a serving cell and/or a user equipment determining a cooperating cell set participating multi-antenna-multi-cell cooperation, the cooperating cell set including the serving cell and non-serving cells, the user equipment and/or the serving cell selecting transmit-ports of the serving cell and non-serving cells according to the determined cooperating cell set, the user equipment obtaining channel state information of the selected transmit-ports, and the user equipment feeding back identification information and the channel state information of the selected transmit-ports. The present invention provides also a serving cell, a cooperative cell and a user equipment for feeding back the identification information and channel state information of the selected transmit-ports. The present invention has advantages of simple implementation and less signaling overhead.Type: GrantFiled: July 15, 2010Date of Patent: March 4, 2014Assignee: Sharp Kabushiki KaishaInventors: Ming Ding, Renmao Liu, Yongming Liang, Yingyu Zhang, Zeng Yang
-
Patent number: 8660104Abstract: Certain aspects of a method and system for communicating information in a multi-antenna system are disclosed. Aspects of one method may include receiving at least one narrowband RF signal via at least one of a plurality of receiving antennas that is unused within a wideband diversity radio frequency (RF) receiver comprising a plurality of receiving antennas, when the wideband diversity RF receiver is operating in a narrowband receiving mode.Type: GrantFiled: September 29, 2006Date of Patent: February 25, 2014Assignee: Broadcom CorporationInventor: Ahmadreza Rofougaran
-
Patent number: 8660105Abstract: A wireless network access point can operate as a closed loop MIMO device when communicating with a station that is operating as an open loop MIMO device. Transmit/receive chains in the access point are calibrated to support aggregate channel reciprocity.Type: GrantFiled: February 27, 2012Date of Patent: February 25, 2014Assignee: Intel CorporationInventors: Qinghua Li, Xintian E. Lin
-
Patent number: 8644255Abstract: A method of operating a communication system is disclosed which includes, in a wireless communication device, transferring a wireless beacon signal and responsively receiving a wireless access request from a user device, determining if a user identifier received with the wireless access request has usage credits in a data structure, exchanging wireless signals with the user device and with a wireless communication network based on the usage credits to provide a wireless communication service to the user device, and decrementing the usage credits for the user identifier in the data structure. The method also includes wirelessly transferring usage credit updates for receipt in a master data structure.Type: GrantFiled: March 24, 2011Date of Patent: February 4, 2014Assignee: Sprint Communications Company L.P.Inventors: Robert H. Burcham, Brandon Christopher Annan, Jason R. Delker, Cesar Perez, Thomas W. Keel
-
Patent number: 8644208Abstract: In relaying signals in a multi-hop network, two-way transmission signals are received at the relay device via at least two antenna elements. The received two-way transmission signals are separated and subjected to a transmit processing at the relay device. Thereby, transmit and receive processing can be restricted to the relay device and signalling load between the transmitting end and the receiving end can be reduced.Type: GrantFiled: December 3, 2007Date of Patent: February 4, 2014Assignee: Nokia Siemens Networks GmbH & Co. KGInventor: Timo Marcus Unger
-
Patent number: 8630201Abstract: There is provided a call control system, a call controller, a terminal device, and a call control method of this type, whereby a communication network to be used by a terminal device on the receiving side is determined in an efficient manner to allow communication promptly, in a communication where plural communication networks are selectively used.Type: GrantFiled: December 18, 2009Date of Patent: January 14, 2014Assignee: NTT DoCoMo, Inc.Inventors: Mari Akuzuwa, Shigeru Iwashina
-
Patent number: 8630268Abstract: In a distributed antenna system in which plural antennas are dispersed spatially, a base station apparatus 102 collects the terminal throughput of the uplink and downlink communication, the number of simultaneous communication terminals, and the information on a radio propagation channel from a distributed antenna to a terminal antenna, and estimates the throughput in each communication mode from the number of simultaneous communication terminals and the radio propagation channel information, selects a communication mode by comparing the estimated throughput with a request value, connects the distributed antenna and the base station apparatus 102 in an antenna connection pattern in the selected communication mode, and switches the communication mode between the base station device and the terminal to continue the communication, when the terminal throughput is below the request value, or above the request value plus a certain threshold value.Type: GrantFiled: November 21, 2011Date of Patent: January 14, 2014Assignee: Hitachi, Ltd.Inventor: Tsuyoshi Tamaki
-
Patent number: 8630278Abstract: In a digital broadcasting signal transmission system, a transmission frame includes a frame body and a frame header, and the frame body is divided into a plurality of sub-bands in the frequency domain and is divided into a plurality of symbols in the time domain. The frame header is provided in the former part of the transmission frame and is transmitted with a signal in the time domain. The frame body includes a plurality of services, and the services respectively receive at least one sub-band and at least one symbol. The frame header includes information on the plurality of services, and information on the plurality of services includes information on the sub-band and the symbol to which the services are allocated, information on channel encoding levels of the services, and information on digital modulation levels of the services.Type: GrantFiled: August 4, 2008Date of Patent: January 14, 2014Assignee: Electronics and Telecommunications Research InstituteInventors: Jae Hyun Seo, Hyoung Soo Lim, Heung Mook Kim, Yong Tae Lee, Sung Ik Park, Jong Soo Lim, Soo In Lee
-
Patent number: 8625565Abstract: Embodiments of a millimeter-wave communication station and method for multiple-access beamforming in a millimeter-wave network are generally described herein. In some embodiments, an initiating station performs multiple-access beamforming with one or more responding stations by announcing a number of sector-sweep (SS) slots of a beamforming training (BFT) period and a number of SS frames of each SS slot. One or more SS frames are received from one or more of the responding stations within one of the SS slots of the BFT period. The initiating station transmits one or more SS feedback frames to the responding stations within the one SS slot to indicate an antenna configuration to the responding stations for communication with the initiating station. The responding stations transmit a limited number of SS frames per SS slot based on the number of SS frames announced by the initiating station and transmit any additional SS frames in a next SS slot of the beamforming training period.Type: GrantFiled: October 6, 2009Date of Patent: January 7, 2014Assignee: Intel CorporationInventors: Carlos Cordeiro, Assaf Kasher, Solomon B. Trainin
-
Patent number: 8625564Abstract: A radio communication apparatus that performs radio communication with another communication apparatus includes an antenna unit, a contact detecting unit that detects contact with the another communication apparatus, a first modulating and demodulating unit for performing communication in a state in which the radio communication apparatus is remote from the another communication apparatus, a second modulating and demodulating unit for performing communication in a state in which the radio communication apparatus is in contact with the another communication apparatus, and a control unit that performs control to perform radio communication with the another communication apparatus via the antenna unit by selecting the first modulating and demodulating unit while the contact detecting does not detect contact with the another communication apparatus and selecting the second modulating and demodulating unit when the contact detecting unit detects contact with the another communication apparatus.Type: GrantFiled: February 23, 2007Date of Patent: January 7, 2014Assignee: Sony CorporationInventor: Kenichi Kawasaki
-
Patent number: 8625566Abstract: Interference between wireless devices communicating in close proximity to each other can result in performance degradation. Although the wireless devices may exchange information to schedule their communications, in some instances, a first wireless device may not notify the second wireless device before initiating a transmission. In addition to interference, components of the second wireless device may be damaged. Functionality can be implemented on the second wireless device to detect transmissions in the first wireless device and accordingly suspend communications of the second wireless device. This can help mitigate interference between the first and second wireless devices and prevent component damage of the second wireless device.Type: GrantFiled: December 22, 2009Date of Patent: January 7, 2014Assignee: QUALCOMM IncorporatedInventors: Paul J. Husted, Olaf Hirsch, MeeLan Lee
-
Patent number: 8611918Abstract: Embodiments of methods and apparatus for providing downlink channel parameters determination for downlink channels associated with a multiple-input-multiple-output (MIMO) system are generally described herein. Other embodiments may be described and claimed.Type: GrantFiled: July 6, 2012Date of Patent: December 17, 2013Assignee: Intel CorporationInventors: Qinghua Li, Xintian E. Lin, Guangjie Li, Kuilin Clark Chen, Xiaoyun May Wu
-
Patent number: 8611317Abstract: A device for wirelessly communicating between one or more mobile communication devices over a wireless network. A primary mobile communication device is configured to establish one or more connections to one or more secondary mobile communication devices. The primary mobile communication device is further configured to establish a first connection and a second connection to at least one of the secondary mobile communication devices. The first connection is a Bluetooth (BT) connection and the second connection is a Wireless Fidelity (WiFi) connection. The primary mobile device is also configured to establish a third connection to another secondary mobile communication device wherein the third connection is a WiFi connection. Additionally, the primary mobile communication device is configured to simultaneously maintain the BT connection and the WiFi connections during the bi-directional transmission of data between the primary mobile communication device and the secondary mobile communication devices.Type: GrantFiled: July 30, 2008Date of Patent: December 17, 2013Assignee: Marvell World Trade Ltd.Inventors: Raja Banerjea, Robert Fanfelle
-
Patent number: 8599815Abstract: A method and apparatus for processing multiple signals at a common frequency combined into a single radio frequency cable and subsequently recovering the signals without significant losses, distortion, or cross-talk. The method and apparatus includes processing multiple signals at a common frequency fed through a single radio frequency (RF) cable with or without one or more amplifiers and utilized for either forward or reverse link transmissions. The invention enables a single power amplifier to amplify multiple RF signals that occupy a common frequency channel and after amplification splitting these signals into amplified copies of the originals. The amplified signals may be sent to different antenna ports to illuminate different base station sectors if required. The signal splitting function is performed at the antenna masthead such that this method reduces the number of feeder cables running up the antenna tower by a factor of N, where N is the number of common frequency signals (e.g.Type: GrantFiled: July 6, 2010Date of Patent: December 3, 2013Assignee: Apple Inc.Inventors: Peter Deane, Abdelgader Legnain, Neil McGowan, Marthinus Da Silveira
-
Patent number: 8594050Abstract: Techniques to control wireless personal area networks are described. An apparatus may include a radio coordinator module operative to receive a transmit data flow having media information and control information, and switch the media information to a media flow path and the control information to a control flow path, a first transceiver to couple to the radio coordinator module, the first transceiver operative to transmit the media information from the media flow path to a receiver using a first frequency band allocated for a wireless personal area network, and a second transceiver to couple to the radio coordinator module, the second transceiver operative to transmit the control information from the control flow path to the receiver using a second frequency band allocated for a wireless local area network. Other embodiments are described and claimed.Type: GrantFiled: December 28, 2007Date of Patent: November 26, 2013Assignee: Intel CorporationInventor: Alex Kesselman
-
Patent number: 8588761Abstract: A method of handling measurement reporting for a network in a wireless communication system is disclosed. The network maintains an active set for storing at least a cell identity which is capable of providing a service to a mobile device of the wireless communication system. The method includes receiving a measurement report message from the mobile device, wherein the measurement report message is used for notification of a cell replacement procedure and includes a first cell identity corresponding to a first cell, determining whether the first cell identity is included in the active set and whether a number of the cell identity in the active set exceeds a threshold, to generate a result, and performing the cell replacement procedure according to the result.Type: GrantFiled: March 5, 2012Date of Patent: November 19, 2013Assignee: Acer IncorporatedInventor: Kuo-Liang Chang
-
Patent number: 8588118Abstract: A wireless communication device includes: a packet detection part detecting presence/absence of a reception of a packet; a judgment part judging whether or not temporal change of presence/absence of the reception of the packet detected in the packet detection part corresponds to a predetermined identifier; and a power source control unit controlling power supply from a power source based on a result of a judgment in the judgment part.Type: GrantFiled: October 31, 2008Date of Patent: November 19, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Takafumi Sakamoto, Kiyoshi Toshimitsu, Toshiyuki Umeda, Shoji Otaka, Keisuke Mera
-
Patent number: 8588351Abstract: Apparatus may be provided including a spectrum analyzer and decision circuitry. The spectrum analyzer may be configured to ascertain wireless signal signature data from a wide range of frequency bands. The decision circuitry may be configured to modify operation of one or both of a receiver and a transmitter based on the signal signature data.Type: GrantFiled: August 22, 2007Date of Patent: November 19, 2013Assignee: Motorola Mobility LLCInventors: Kevin J. Bush, John R. Barr, Charles P. Binzel, Ronald F. Buskey, Brian D. Storm
-
Patent number: 8570910Abstract: In DFT-s-OFDM, disclosed are a wireless transmission apparatus and wireless transmission method whereby freedom of allocation of frequencies is secured, while increases of CM are avoided. An SD number determination unit (152) determines an SD number based on the channel quality information of a mobile station and a threshold value that is set by a threshold value setting unit (151). A transmission bandwidth determination unit (153) determines the transmission bandwidth necessary for transmission of the transmission data. An allocation commencement position determination unit (154) determines the position for commencement of allocation of transmission data. If the SD number is equal to or more than the threshold value, a divided bandwidth determination unit (155) sets all the divided bandwidths to equal values and a frequency interval determination unit (156) sets all the frequency intervals to equal values.Type: GrantFiled: June 19, 2009Date of Patent: October 29, 2013Assignee: Panasonic CorporationInventors: Takashi Iwai, Katsuhiko Hiramatsu, Kenichi Miyoshi, Yoshihiko Ogawa, Tomofumi Takata
-
Patent number: 8570935Abstract: A method of enabling wireless data transfer to an electronic device having a first transceiver structured to interact with a first wireless network and a second transceiver structured to interact with a second wireless network including repeatedly powering up the second transceiver to await receipt of a second beacon signal through the second wireless network, receiving an instance of the second beacon signal with an indication of availability of data to be transferred to the electronic device through the first wireless network, and in response to the receiving of the instance of the second beacon signal with the indication of availability of the data, powering up the first transceiver to receive the data through the first wireless network.Type: GrantFiled: February 20, 2007Date of Patent: October 29, 2013Assignee: BlackBerry LimitedInventors: Michael Montemurro, Roger Durand
-
Patent number: 8565112Abstract: A method and device for concurrently transmitting a Wi-Fi signal and a Bluetooth signal via a common power amplifier and antenna. A first set of values indicative of transmission power levels of a Wi-Fi signal and a corresponding set of values indicative of transmission power levels of a BT signal are stored in a table. Information about activities pertaining to the BT signal including a value of a transmission power level of the BT signal is received. Based on the received value of the transmission power level of the BT signal, a corresponding value of a transmission power level of the Wi-Fi signal may be looked up from the table. Transmission of one or more of the Wi-Fi or BT signals may be controlled, based on at least one of the received information or the looked-up value of the transmission power level of the Wi-Fi signal.Type: GrantFiled: April 26, 2011Date of Patent: October 22, 2013Assignee: QUALCOMM IncorporatedInventors: Bemini Hennadige Janath Peiris, Sundar Sankaran
-
Patent number: 8565147Abstract: A frequency block allocation apparatus based on a single carrier frequency division multiple access method includes an allocation index computation target selector that selects frequency block groups, each consisting of one or more continuous non-allocated frequency blocks from a set of non-allocated frequency blocks; an allocation index computation unit that computes an allocation index for each target pair of each frequency block group and a terminal; and a frequency block allocation unit that determines one of the target pairs to be a frequency block allocation target, in accordance with priority based on the computed allocation indexes.Type: GrantFiled: September 1, 2010Date of Patent: October 22, 2013Assignee: KDDI CorporationInventors: Toshihiko Komine, Takeo Ohseki, Satoshi Konishi
-
Patent number: 8553620Abstract: A method for transmitting data in a multiple antenna system comprises the steps of: generating a transmission signal in plural antennas through the application of a precoding eight matrix to first and second antenna clusters including the plural antennas, and transmitting the transmission signal. The precoding weight matrix is a block diagonal matrix that is configured in a precoding weight corresponding to first and second antenna clusters respectively. The precoding weight of the first antenna cluster is selected according to a channel condition, and the precoding weight of the second antenna cluster is selected regardless of the channel condition but according to a rule.Type: GrantFiled: July 29, 2009Date of Patent: October 8, 2013Assignee: LG Electronics Inc.Inventors: Hyun Soo Ko, Jin Young Chun, Moon Il Lee, Bin Chul Ihm, Wook Bong Lee
-
Patent number: 8553715Abstract: Provided is a communication apparatus including a first communication unit for performing communication using a carrier having a first frequency, a second communication unit having a plurality of antennas, for performing communication using a carrier having a second frequency, a first communication processing unit for processing a signal received by the first communication unit and causing to transmit a signal, and a second communication processing unit for processing a signal received by the second communication unit and causing to transmit a signal. The second communication processing unit includes a synchronization unit for specifying a start position of a second transmission request in which a plurality of transmission beam patterns are set in one packet based on information indicating reception initiation, and an automatic gain control unit for performing automatic gain control based on a first automatic gain control setting value.Type: GrantFiled: December 28, 2009Date of Patent: October 8, 2013Assignee: Sony CorporationInventors: Hiroaki Takano, Takushi Kunihiro
-
Patent number: 8547948Abstract: A system maintains quality of service of a wireless network. The system includes a first layer, a second layer, and a third layer. The first layer configures a directional antenna to transmit and receive in particular sectors based on antenna gain, transmission power, and beam width. The second layer communicates a direction and range to the first layer. The third layer maintains information summarizing connectivity between a plurality of nodes. The third layer determines whether to extend the range of the signal from a predetermined default range to an extended range.Type: GrantFiled: October 6, 2005Date of Patent: October 1, 2013Assignee: Lockheed Martin CorporationInventors: Scott Evans, Michael Hartman, Marc Pearlman
-
Patent number: 8547918Abstract: A method for providing multiple-user multiple-input and multiple-output in a high-speed packet access system is described. Channel quality indicators are received from a plurality of dual stream capable wireless communication devices. A preferred beam and a secondary beam are determined for each wireless communication device using the channel quality indicators. Wireless communication devices with preferred beams orthogonal to each other are paired. A wireless communication device pair is selected. Data streams for the selected wireless communication device pair are scheduled in the same transmission time interval using an orthogonal variable spreading factor code.Type: GrantFiled: November 16, 2010Date of Patent: October 1, 2013Assignee: Qualcomm IncorporatedInventors: Stefan Brueck, Josef J. Blanz, Pavan Kumar Vitthaladevuni
-
Patent number: 8526405Abstract: Disclosed are systems and methods for responding to a web page request from a mobile device by providing the network address of a server hosting content formatted for the mobile device. The systems and methods include means and ways for redirecting a request for URL resolution from a DNS server to an enhanced DNS server with facilities to determine the kind of the requesting device, e.g., whether the requesting device is fixed or mobile.Type: GrantFiled: June 13, 2008Date of Patent: September 3, 2013Assignee: Apple Inc.Inventors: Richard R. Curtis, John L. Jorgensen, Eswar Priyadarshan, Jayasurya Vadrevu
-
Patent number: 8520652Abstract: A method for interpreting timing information at a communication support entity operable to communicate wirelessly, includes the steps of: at a first time at the communication support entity, receiving an indicator of a predetermined form over a link from another communication support entity; receiving over the link data representing one or more relative times; interpreting each such relative time represented by the received data as indicating the absolute time that is offset after the first time by the respective relative time together optionally with a latency value; and determining in dependence on the received data the manner in which the communication support entity is to communicate wirelessly at that absolute time.Type: GrantFiled: July 11, 2008Date of Patent: August 27, 2013Assignee: Cambridge Silicon Radio LimitedInventors: Dean Armstrong, Alexander Thoukydides
-
Patent number: 8514688Abstract: An RF (radio frequency) signal is generated at a first communication device and is modulated. A second RF signal provided to the first communication device from the second communication device is demodulated. The second RF signal is detected. The generating is actuated to initiate an active or a passive mode communication, when the detecting does not detect the second RF signal at a level of a first threshold or more, the active mode including a transmission of modulated data at the first communication device and the second communication device, the passive mode providing load modulated communication from the second communication device to the first communication device. When the first communication device receives an indication to start a communication of the active mode from the second communication device, the demodulating receives data at a level of a second threshold or higher, the second threshold being higher than the first threshold.Type: GrantFiled: December 8, 2003Date of Patent: August 20, 2013Assignee: Sony CorporationInventors: Kunihide Fujii, Tadashi Morita, Shigeru Arisawa, Yoshihisa Takayama
-
Patent number: 8514745Abstract: A method for generating a broadcast signal includes forming an information block for transmission, the information block including a first field comprising a plurality of bits configured to impart information to a first group of user equipment (UEs) regarding a first evolved NodeB (eNodeB) transmit antenna configuration. The method further includes generating error detection bits based upon the information block and scrambling the error detection bits using a mask according to a second eNodeB transmit antenna configuration, such that the mask is configured to impart information to a second group of UEs regarding the second eNodeB transmit antenna configuration. The method also includes generating the broadcast signal having the information block and the scrambled error detection bits, and transmitting the generated broadcast signal via a packet broadcast control channel.Type: GrantFiled: May 27, 2010Date of Patent: August 20, 2013Assignee: LG Electronics Inc.Inventors: Dongwook Roh, Bonghoe Kim, Daewon Lee, Yujin Noh, Byeongwoo Kang
-
Patent number: 8514733Abstract: In an embodiment, an access network receives a message associated with a given user equipment (UE). The received message can be an uplink message received from the given UE itself (e.g., a measurement report, a cell update message), or can be a downlink message for transmission to the given UE (e.g., a call announcement message). The access network determines that the received message is associated with a communication session of a given type (e.g., a delay-sensitive communication session). The access network selects an uplink initial signal-to-interference ratio (SIR) target for the given UE based on the determination. The access network also starts a timer having a given expiration period based on the determination. The access network refrains from updating the uplink initial SIR target for the given UE at least until the timer expires.Type: GrantFiled: May 18, 2010Date of Patent: August 20, 2013Assignee: QUALCOMM IncorporatedInventors: Yih-Hao Lin, Bongyong Song
-
Patent number: 8503408Abstract: A base station includes a receiver receiving feedback information including a preferred weight determined by a user equipment (UE); a processor multiplying a weight and data to be transmitted; a transmitter including two antennas and transmitting the weight multiplied data to the UE through a specific physical downlink shared channel where a MIMO transmission scheme for a HS-DSCH (High Speed Downlink Shared Channel) is applied, the transmitter transmitting feed-forward information through a downlink shared control channel when the data is transmitted using the MIMO transmission scheme for the HS-DSCH, wherein the weight applied to the specific physical downlink shared channel is adjusted at a subframe boundary of the specific physical downlink shared channel and the feed-forward information is transmitted through a subframe of the downlink shared control channel corresponding to the specific subframe of the specific physical downlink shared channel.Type: GrantFiled: March 5, 2012Date of Patent: August 6, 2013Assignee: LG Electronics Inc.Inventors: Dong Youn Seo, Bong Hoe Kim, Young Woo Yun, Ki Jun Kim, Jung Hoon Lee, Eun Sun Kim, Hak Seong Kim, Suk Hyon Yoon, Joon Kui Ahn
-
Patent number: 8503407Abstract: A method for providing precoding weights for data symbols of data control subframes includes generating a downlink frame having control subframes which individually correspond to one of a plurality of downlink data subframes, and inserting weight information into each of the control subframes, such that the weight information is to be applied to data symbols present in the corresponding one of the data subframes. The method further includes transmitting the control subframes and the inserted weight information to a receiving device.Type: GrantFiled: December 21, 2009Date of Patent: August 6, 2013Assignee: LG Electronics Inc.Inventors: Dong Youn Seo, Bong Hoe Kim, Young Woo Yun, Ki Jun Kim, Jung Hoon Lee, Eun Sun Kim, Hak Seong Kim, Suk Hyon Yoon, Joon Kui Ahn
-
Patent number: 8503418Abstract: A method includes receiving information flows between users into a basestation of a cellular network, applying a usage accountability framework responsive to predetermined user fairness metrics, bandwidth resources on the network and a history of channel bandwidth variations by the users, and executing bandwidth allocation for the flows between the users responsive to the applying an accountability framework for improving user experience on the network by the users.Type: GrantFiled: June 3, 2011Date of Patent: August 6, 2013Assignee: NEC Laboratories America, Inc.Inventors: Ravindranath Kokku, Rajesh Mahindra, Sampath Rangarajan
-
Patent number: 8498278Abstract: A system is provided for a wireless local area network. The system includes, but is not limited to, at least one cell controller and simplified RF ports which are configured to provide lower level media access control functions. Higher level media access control functions are provided in a cell controller, which may service one or more RF ports that are capable operating with at least two wireless local area subnetworks. Mobile units can also be configured with the higher level media access control functions being performed in a host processor.Type: GrantFiled: January 11, 2007Date of Patent: July 30, 2013Assignee: Symbol Technologies, Inc.Inventor: Robert Beach
-
Patent number: 8489039Abstract: Techniques are provided to enable computation of beamforming weights for beamforming MIMO wireless communication between first and second wireless communication devices. At the first device comprising a first plurality of antennas, signals are received that are wirelessly transmitted from a different one of a second plurality of antennas of the second device during a corresponding one of a plurality of time slots. The first device computes beamforming weights from the received signals. When signals are to be transmitted from the first device to the second device, the first device applies the beamforming weights to signals to be transmitted from the first plurality of antennas of the first device to the second plurality of antennas of the second device.Type: GrantFiled: September 23, 2008Date of Patent: July 16, 2013Assignee: Cisco Technology, Inc.Inventors: Li Guo, Hang Jin
-
Patent number: 8483200Abstract: A method and apparatus for selecting an antenna mapping in multiple-in/multiple-out (MIMO) enabled wireless communication networks. A candidate set of currently available antenna mappings is determined based upon measured long term channel conditions. An antenna mapping is selected from the candidate set, and the mapping is calibrated with a selected antenna mapping of a receiving wireless transmit/receive unit (WTRU). When the selected mappings are calibrated, packet data transmission begins. In an alternative embodiment, a calibration training frame (CTF) is used to calibrate multiple antenna mappings simultaneously or sequentially. Also disclosed are physical layer and medium access control layer frame formats for implementing antenna mapping selection according to the invention.Type: GrantFiled: April 6, 2006Date of Patent: July 9, 2013Assignee: Interdigital Technology CorporationInventors: Inhyok Cha, Eldad Zeira, Keith Richard Baldwin
-
Patent number: 8483136Abstract: An Apparatus and methods for communicating in a wireless access system using a medium access control protocol data unit (MAC PDU) is disclosed.Type: GrantFiled: September 2, 2010Date of Patent: July 9, 2013Assignee: LG Electronics Inc.Inventors: Young Soo Yuk, Ki Seon Ryu, Jeong Ki Kim, Yong Ho Kim
-
Patent number: 8472558Abstract: It is possible to provide a radio transmission device and a radio transmission method which can avoid degradation of a channel estimation accuracy using a reference signal formed by a ZC sequence even when the RS transmission band of a local cell is different from that of an adjacent cell. A mobile station decides a cyclic shift sequence corresponding to RB allocation information from an RS table which correlates different frequency bandwidths from a reference point of respective transmission bands to a spectrum start number of the cyclic shift sequence so as to satisfy a particular relationship based on the sequence length and transmits the decided cyclic shift sequence as RS to a base station. The base station uses the same RS table as the RS table of the mobile station and performs correlation calculation of the RS transmitted from the mobile station, thereby performing channel estimation.Type: GrantFiled: January 30, 2008Date of Patent: June 25, 2013Assignee: Panasonic CorporationInventors: Yoshihiko Ogawa, Daichi Imamura, Sadaki Futagi, Atsushi Matsumoto, Takashi Iwai
-
Patent number: 8462755Abstract: A wireless communications device includes an antenna, a multi-port path selection structure having an antenna port connected to the antenna, and plural ports connected to respective one or more receive and transmit paths of the wireless communications device. The multi-port path selection structure has a transmit band reject filter connected to the transmit path and a second filter connected to the receive path.Type: GrantFiled: April 18, 2012Date of Patent: June 11, 2013Assignee: Apple Inc.Inventors: Chun-Yun Jian, Eric Gagnon, Lan Hu
-
Patent number: 8462754Abstract: A wireless device for receiving composite signals is disclosed. The wireless device includes an antenna. The wireless device also includes a first amplifier coupled to the antenna. The wireless device further includes a second amplifier coupled to the antenna. The wireless device also includes a first receiver. The wireless device further includes a second receiver. The wireless device also includes a first switch that couples the first receiver to the output of either the first amplifier or the second amplifier. The wireless device further includes a second switch that couples the second receiver to the output of either the first amplifier or the second amplifier.Type: GrantFiled: June 7, 2010Date of Patent: June 11, 2013Assignee: QUALCOMM, IncorporatedInventors: Beomsup Kim, Charles J Persico
-
Patent number: 8462753Abstract: Provided is a mobile tri-band antenna system having low profile. The antenna system includes a tri-band feeding unit for dividing a satellite broadcasting signal by a signal channel in an azimuth angle and an elevation angle, and transmitting/receiving the satellite communication signal through distinguishing the satellite communication signal; a beam shaping unit for dividing the satellite broadcasting signals into a first channel signal and a second channel signal, combined power thereof through channel switching; an antenna controlling unit for driving an antenna system in an azimuth and elevation angle to direct the satellite according to the power combined second channel signal from the beam shaping unit; a first triplexer unit for outputting the power combined first channel signal to a rotary joint unit; a second triplexer unit for converting the first channel signal inputted to a downlink frequency and providing the converted first channel signal to the indoor apparatus.Type: GrantFiled: November 10, 2006Date of Patent: June 11, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Soon-Young Eom, Young-Bae Jung, Seong-Ho Son, Jae-Seung Yun, Soon-Ik Jeon
-
Patent number: 8446889Abstract: Methods and systems that support, for example, canceling or trimming reservations of a shared communication medium are described. In one embodiment, a method that adapts a network time reservation in a communication network may include, for example, one or more of the following: transmitting a preamble field; transmitting a legacy signal field; transmitting at least one paired field, each paired field comprising a signal field and a protocol data unit; and generating an interframe gap.Type: GrantFiled: June 21, 2011Date of Patent: May 21, 2013Assignee: Broadcom CorporationInventors: Matthew J. Fischer, Bruce E. Edwards
-
Patent number: 8447286Abstract: In a communication system at least one operational criterion is applied for a group of one or more users. On the basis of such operational criterion, one or more interface rules are generated. An interface rule includes information that identifies an application that is capable of utilizing two or more communication interfaces, and also a function for determining a communication interface to be applied by that application in communications of the group of one or more users. A profile that includes interface rules generated on the basis of operational criteria to be applied for a user is created and stored in a user terminal of the user. Use of applications can be matched with operational requirements posed on or by the user, without substantial need to change the applications and/or the configuration of the terminal due to the matching.Type: GrantFiled: July 30, 2009Date of Patent: May 21, 2013Assignee: EADS Secure Networks OyInventors: Jaakko Saijonmaa, Juha Lehtonen, Ilpo Paltemaa
-
Patent number: 8422466Abstract: The invention provides a method, an apparatus, and a computer program for supporting multiple connections to a network or a plurality of networks. Support for multiple connections is enabled by establishing a connection of a first type to a network, receiving a request for a connection of the first type, registering a virtual connection as a response to receiving said request, receiving a request for establishing a connection of a second type through the virtual connection, associating the virtual connection with the connection of the first type, and establishing the connection of the second type through the connection of the first type.Type: GrantFiled: November 26, 2007Date of Patent: April 16, 2013Assignee: Nokia CorporationInventor: Fan Yang
-
Patent number: 8423047Abstract: An embodiment of the current invention is directed to facilitating a location-based service for use by a given mobile-device. A location of each of a number of base stations that makes up a portion of a wireless-telecommunications-network is identified. For a given base station, the probability that it provides a level of signal coverage to a geographical area that would enable the mobile-device in the first geographical area to communicate with the network is determined. A density of possible locations that the mobile-device may be within the geographical area is determined. A position for the mobile-device is approximated based on the density. A location-based service is facilitated for use by the mobile-device based on the position of the mobile-device.Type: GrantFiled: March 14, 2011Date of Patent: April 16, 2013Assignee: Sprint Communications Company L.P.Inventors: Hui Zang, Jean C. Bolot, Francois Baccelli
-
Patent number: 8422482Abstract: A wireless communication system has transmission apparatus transmitting a wireless signal based on a transmission unit and reception apparatus. The reception apparatus includes plural reception devices receiving the wireless signal to obtain the informational signals and output-controlling device selecting any informational signal from the informational signals. The reception device has communication-quality-detecting device that detects communication quality of the wireless signal, a memory storing the informational signal, and synchronization-detection-storage-controlling device that detects the synchronization signal and controls the memory to store the informational signal based on a detected result of the synchronization signal.Type: GrantFiled: May 11, 2005Date of Patent: April 16, 2013Assignee: Sony CorporationInventor: Takehiro Sugita
-
Patent number: 8411622Abstract: The invention relates to systems and methods for spectrum sharing and communication among several wireless communication networks with overlapping service areas (or cells); especially to Wireless Regional Area Networks (WRANs). Particular embodiments of the invention disclose using a conference channel to communicate between base stations. Other embodiments use slotted coexistence windows within frames to transmit and receive information, including for reserving transmission times within subsequent frames.Type: GrantFiled: May 9, 2008Date of Patent: April 2, 2013Assignee: STMicroelectronics, Inc.Inventor: Wendong Hu
-
Patent number: 8406173Abstract: A mobile communication system in which a mobile station apparatus transmits uplink data to a base station apparatus using a physical uplink shared channel that is allocated by an uplink data transmission permission signal, wherein the base station apparatus allocates, to the mobile station apparatus, by using a radio resource control signal, the physical uplink shared channel for the mobile station apparatus to transmit channel states information, and the mobile station apparatus periodically transmits, to the base station apparatus, the channel states information using the physical uplink shared channel.Type: GrantFiled: June 11, 2008Date of Patent: March 26, 2013Assignee: Sharp Kabushiki KaishaInventors: Yohsuke Akimoto, Shohei Yamada, Hiroshi Katsuragawa, Tatsushi Aiba
-
Patent number: RE44173Abstract: A spectrally efficient wireless communication system that includes a plurality of base stations communicating indirectly with a plurality of wireless communications devices through a plurality of repeaters. The method can generally comprise communicating indirectly between a first base station and a wireless communication device using a first repeater and a first RF backhaul link. A control processor associated with the first base station can control a first smart antenna system. The system selectively configures the first smart antenna system to spatially isolate communications on the first RF backhaul from communications on a second RF backhaul of a second repeater.Type: GrantFiled: June 28, 2011Date of Patent: April 23, 2013Assignee: Treble Investments Limited Liability CompanyInventors: John R. Noll, Christopher J. Peters, Jeffrey W. Smith, Terry L. Williams