Duplex Repeaters Patents (Class 370/279)
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Patent number: 8891415Abstract: A wireless communications system may include wireless communications devices configured to communicate with one another on a given channel via a time division based communications protocol. A communication initiation wireless communications device configured to transmit data in an initiator time slot of the given channel. A repeater wireless communications device configured to receive the transmitted data from the communications initiation wireless communications device in the initiator time slot and retransmit the data in a repeater time slot of the given channel. A receiver wireless communications device configured to determine a respective quality metric for data from each of the initiator time slot and the repeater time slot, and use data from the initiator time slot or the repeater time slot based upon the respective quality metrics thereof.Type: GrantFiled: October 4, 2012Date of Patent: November 18, 2014Assignee: Harris CorporationInventors: Nelson H. Powell, III, James P. Lill, William S. Rogers
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Publication number: 20140328224Abstract: Described embodiments provide a method for processing an uplink signal in a radio unit. A first uplink signal may be received directly from user equipment. The received uplink signal may be delayed using uplink delay information. A second uplink signal may be received indirectly from user equipment through at least one repeater connected to the radio unit. The delayed first uplink signal and the second uplink signal may be combined and transmitted to a digital unit.Type: ApplicationFiled: July 16, 2014Publication date: November 6, 2014Inventors: Ki-Ho LEE, Yong-Gyoo LEE, Yung-Ha JI
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Patent number: 8867430Abstract: A method of performing hybrid automatic repeat request (HARQ) by a source station in a wireless communication system is provided. The method includes: transmitting data to a destination station at a transmission start time; receiving an acknowledgment (ACK) or negative-acknowledgement (NACK) signal for the data from the destination station after a first transmission time interval elapses from the transmission start time; and upon receiving the NACK signal, retransmitting the data after a second transmission time interval elapses from the transmission start time, wherein the second transmission time interval is one transmission time interval selected from a plurality of predetermined transmission time intervals. Accordingly, the wireless communication system can perform a heterogeneous HARQ process in which an HARQ period, an ACK/NACK transmission start time, and the like are different.Type: GrantFiled: October 30, 2009Date of Patent: October 21, 2014Assignee: LG Electronics Inc.Inventors: Jae Hoon Chung, So Yeon Kim, Kyu Jin Park, Seung Hee Han, Yeong Hyeon Kwon
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Patent number: 8867415Abstract: A wireless communication system may include a first base station having a first communication coverage area and operating in an HFDD mode using a first frequency and a second frequency in an alternating pattern. The system may also include a second base station having a second communication coverage area different than the first communication coverage area and also operating in an HFDD mode. The second base station may communicate using the first frequency and the second frequency in an opposite alternating pattern from the first base station.Type: GrantFiled: February 11, 2010Date of Patent: October 21, 2014Assignee: Pine Valley Investments, Inc.Inventors: Gregory Henderson, Lung Chan
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Patent number: 8855028Abstract: An apparatus for bidirectional communication between multi-nodes using a relay node receives 2M signals, encoded using a nested lattice code chain, from a base station and M user nodes in a predetermined time interval, estimates M pairwise lattice code sum signals between the base station and the M user nodes based on the nested lattice code chain with respect to the 2M encoded signals, encodes the M pairwise lattice code sum signals to broadcasting codewords to generate M encoded signals after the predetermined time interval has ended, and transmits the M encoded signals to the base station and the M user nodes.Type: GrantFiled: February 7, 2012Date of Patent: October 7, 2014Assignee: Samsung Electronics Co., Ltd.Inventor: Sang Joon Kim
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Patent number: 8855042Abstract: The present invention discloses a Time Division Dual (TDD) system and a downlink feedback method for a relay link thereof. A relay station and a network side of the TDD system transmit uplink data and downlink feedback through relay subframes, wherein: one or more uplink subframes are selected from uplink subframes of a wireless frame as uplink relay subframes used for uplink data transmission, a downlink subframe is determined for each uplink relay subframe from downlink subframes of the wireless frame as a downlink relay subframe used for downlink feedback or new data indication, wherein the uplink relay subframes and the downlink relay subframes have a fixed timing sequence relationship; the relay station transmits uplink data to the network side through the uplink relay subframes, and receives the downlink feedback or new data indication from the network side through the downlink relay subframes corresponding to the uplink relay subframes.Type: GrantFiled: June 27, 2011Date of Patent: October 7, 2014Assignee: ZTE CorporationInventors: Ming Yuan, Feng Bi, Jin Yang, Feng Liang, Shuanshuan Wu
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Patent number: 8855072Abstract: The present invention relates to a method for allocating a relay backhaul resource in a wireless communication system and to an apparatus for same. In detail, the present invention provides a signal-receiving method in which a terminal receives a signal in a wireless communication system, and to an apparatus for same, wherein the method comprises a step of receiving, from a base station, information on one or more first resource blocks (RB) allocated for a relay, a step of receiving resource allocation information through a control channel from the base station, and a step of receiving a predetermined resource block indicated by the resource allocation information among logically continuous second resource blocks. The second resource blocks are logically continuous when excluding said one or more first resource blocks from the entirety of the resource block.Type: GrantFiled: August 2, 2010Date of Patent: October 7, 2014Assignee: LG Electronics Inc.Inventors: Sung Ho Moon, So Yeon Kim, Kyu Jin Park, Jae Hoon Chung, Min Seok Noh, Yeong Hyeon Kwon
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Patent number: 8849224Abstract: The invention provides a receiver comprising an input end, an Rx-chain with at least one regulating means and an output end. The receiver further comprises a feedback loop in the Rx-chain, the regulating means arranged for providing a higher or lower gain setting. The feedback loop comprises an AGC Multilevel threshold detector unit, AMU. The AMU comprises at least one Low Multilevel Threshold Detector, LMTD, and the LMTD comprises at least two threshold detectors, each detector having an associated low threshold level and detection interval, the length of the detection interval being shorter the lower the low threshold level is arranged to be set. The higher gain setting being arranged to be initiated through the feedback loop when the absolute level of an AGC input signal has been below at least one of the low threshold levels during the entire detection interval associated with that low threshold level.Type: GrantFiled: May 15, 2008Date of Patent: September 30, 2014Assignee: Optis Cellular Technology, LLCInventor: Vimar Björk
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Patent number: 8848580Abstract: A resource allocation method of a relay station in a wireless communication system employing the relay station is provided. The method includes: receiving information on a resource allocation pattern for an access link and a backhaul link of a first frequency band; and determining a resource allocation pattern for an access link and a backhaul link of a second frequency band on the basis of the resource allocation pattern of the first frequency band, wherein the first frequency band is any one of an uplink frequency band and a downlink frequency band, and the second frequency band is a remaining one of the uplink frequency band and the downlink frequency band.Type: GrantFiled: July 31, 2009Date of Patent: September 30, 2014Assignee: LG Electronics Inc.Inventors: Kyu Jin Park, Jae Hoon Chung, Han Kyu Cho, Eun Jong Lee, Doo Hyun Sung
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Patent number: 8849187Abstract: An amplifier for controlling or reducing broadband noise is disclosed. An amplifier determines whether a useful signal is being amplified and controls the gain of the amplifier at least when useful signals are not being amplified to prevent or minimize the amplification of noise.Type: GrantFiled: August 22, 2012Date of Patent: September 30, 2014Assignee: Wilson Electronics, LLCInventors: Vernon A. Van Buren, Patrick L. Cook, Christopher K. Ashworth, Richard M. Kline
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Patent number: 8837333Abstract: The present invention relates to a satellite communication system for extending communications between a vehicle and a satellite in an area of non-visibility of the satellite. The satellite communication system comprises a fixed transceiver system and a mobile transceiver system. The fixed transceiver system includes a first antenna intended to be positioned outside the area of non-visibility of the satellite, and at least one second antenna coupled with the first antenna and intended to be positioned in the area of non-visibility of the satellite. The fixed transceiver system is configured to receive through the first antenna downlink signals transmitted by the satellite on at least one downlink carrier frequency and to transmit the received downlink signals on the at least one downlink carrier frequency in the area of non-visibility of the satellite through the at least one second antenna.Type: GrantFiled: December 18, 2009Date of Patent: September 16, 2014Assignee: Telespazio S.p.A.Inventors: Antonio Saitto, Damiano De Luca, Rosario Bono, Daniele D'Ambrosio
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Patent number: 8838021Abstract: A two conductor hard wired communications link accepts an actual value of at least one parameter of interest from an environmental sensor in the form of data encoded on the conductors via current modulation. The sensor is mounted in a location remote from an irrigation controller. A circuit connected to the sensor transmits an RF signal representing an actual value of a parameter of interest detected by the sensor. A data relay is connected to the hard wired communication link of the irrigation controller. The data relay includes a receiver that receives the RF signal, and circuitry configured to extract the actual value of the parameter of interest and emulate a predetermined set of physical and protocol properties of the hard wired communication link of the irrigation controller.Type: GrantFiled: July 15, 2013Date of Patent: September 16, 2014Assignee: Hunter Industries, Inc.Inventor: Peter J. Woytowitz
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Patent number: 8831043Abstract: A selective cooperative relaying method, the method including: determining, by a base station, whether a mobile station for which the base station provides a service is the mobile station necessary for direct transmission or is the mobile station necessary for cooperative relaying via a relay station; and selecting, by a base station, mobile stations using a simple relaying scheme, a cooperative transmission diversity scheme, or a cooperative receiving diversity scheme from mobile stations necessary for the cooperative relaying via the relay station.Type: GrantFiled: June 19, 2008Date of Patent: September 9, 2014Assignee: Electronics and Telecommunications Research InstituteInventors: Bangwon Seo, Heesoo Lee, Jae Young Ahn, Hyun Kyu Chung, Chung Gu Kang, Hyun Seok Ryu, Jung Jae Yu
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Publication number: 20140241218Abstract: A decentralized communication device is provided that facilitates optimal positioning and orientation of one or more antennas for wireless communication with external devices. The decentralized communication device includes one or more master components and one or more slave components. The master and the slave components are physically separate and communicate wirelessly. In some embodiments the slave acts as a carrier frequency translator between the master and an external wireless device, where it communicates with the external device using a first frequency and communicates with the master using a second frequency which is different from the first frequency. In another embodiment the slave has most or all the physical layer to do the digital coding, digital modulation, data framing, data formatting and data packetization for communicating with an external device, in which case digital coding and digital modulation is distributed between the master and the slave.Type: ApplicationFiled: February 21, 2014Publication date: August 28, 2014Applicant: Golba LLCInventor: Mehran Moshfeghi
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Patent number: 8817848Abstract: A distributed antenna system includes a master unit including a downlink RF input operable to receive an RF input signal from a downlink port of a base station, a first optical port, and a second optical port. The distributed antenna system also includes a first remote unit coupled to the first optical port. The first remote unit comprises a downlink antenna port and a first uplink antenna port and a second remote unit coupled to the second optical port of the master unit. The second remote unit comprises a downlink antenna port and a second uplink antenna port. The master unit is operable to transmit a first RF signal associated with the first RF uplink signal to a first uplink port of the base station and transmit a second RF signal associated with the second RF uplink signal to a second uplink port of the base station.Type: GrantFiled: September 4, 2012Date of Patent: August 26, 2014Assignee: Dali Systems Co. Ltd.Inventors: Paul Lemson, Shawn Patrick Stapleton, Sasa Trajkovic
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Patent number: 8817674Abstract: An apparatus and method for performing Uplink (UL) communication by a Relay Station (RS) in a wireless communication system are provided. The RS receives a Transmit/receive Transition Gap (TTG) and a Receive/transmit Transition Gap (RTG) of a Base Station (BS) during a network entry process of the RS, receives, from the BS, an idle time R_IdleTime between frames used in the RS, and determines a structure of a UL frame. In the alternative, the RS determines a time interval Tad or an idle time R_IdleTime according to a predetermined scheme, and transmits the Tad or the R_IdleTime to the BS. The proposed apparatus and method reduce an overhead of a frame structure when the RS transitions from a transmission mode to a reception mode or from a reception mode to a transmission mode, the frame structure being for frames of the BS and it adjacent RS, thereby reducing interference.Type: GrantFiled: October 25, 2011Date of Patent: August 26, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Young-Bin Chang, Jae-Weon Cho
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Publication number: 20140226540Abstract: A method of transmitting uplink control information by a relay node includes: receiving resource allocation information and sequence information in accordance with a predetermined physical uplink control channel (PUCCH) transmission format for the relay node from an eNode B; and transmitting a PUCCH, to which a sequence corresponding to the sequence information is applied, to the eNode B through a predetermined number of symbols in a second slot of a resource region indicated by the resource allocation information. The predetermined PUCCH transmission format includes: a first format for transmitting ACK/NACK information indicating success or failure of reception of a codeword received from the eNode B; a second format for transmitting channel quality information (CQI) indicating a channel quality state; and a third format for transmitting a scheduling request (SR) signal. A resource for PUCCH transmission format for a user equipment is reused for transmission of the predetermined PUCCH transmission format.Type: ApplicationFiled: April 16, 2014Publication date: August 14, 2014Applicant: LG ELECTRONICS INC.Inventors: Kyu Jin PARK, Yeong Hyeon KWON, Sung Ho MOON, Min Seok NOH, Jae Hoon CHUNG
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System and method for medium access control enabling both full-duplex and half-duplex communications
Patent number: 8804583Abstract: Disclosed herein are systems, methods, and non-transitory computer-readable storage media for a modified MAC protocol which can facilitate communications with both full-duplex and half-duplex devices. A system configured according to the disclosed method can enable communications between an Access Point (AP) and a client in either full duplex or half duplex. The system can similarly enable peer-to-peer communications in both full duplex and half duplex communication modes.Type: GrantFiled: July 13, 2012Date of Patent: August 12, 2014Assignee: AT&T Intellectual Property I, L.P.Inventors: Vaneet Aggarwal, Rittwik Jana, Christopher W. Rice, Nemmara K. Shankaranarayanan -
Patent number: 8797896Abstract: A method for wireless communication comprises a donor enhanced Node B (eNB) transmitting system information for a subframe structure to a relay node (RN), which information comprises radio resource configuration and/or timing information for uplink backhaul transmission. The RN uses an automatic method to select the Round Trip Time (RTT) value for the Hybrid Automatic Repeat request (HARQ) on the uplink backhaul (Un) relay link. The RTT value is implicitly determined according to the Un (backhaul) subframe or MBSFN subframe configuration periodicity. The RTT option is signaled by the Un subframe configuration period of the MBSFN Un downlink signals.Type: GrantFiled: August 18, 2011Date of Patent: August 5, 2014Assignee: Futurewei Technologies, Inc.Inventors: Zhongfeng Li, Philippe Sartori
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Patent number: 8797922Abstract: In a relay system, a relay node (RN) may communicate with a donor base station (BS) via a backhaul link. For example, the RN may receive control information from the donor BS over the backhaul link. The control information may be transmitted by the donor BS using a specific aggregation level. The RN may decode the control information by monitoring search spaces associated with various aggregation levels. When two or more search spaces are overlapped, decoding candidates of different aggregation levels of the same starting control channel element (CCE) index may result in a successful control information decoding, when actual control information transmission may use only one of the aggregation levels. Such a possibility may result in ambiguous decoding of the control information. Certain aspects of the present disclosure generally relate to handling the ambiguous decoding.Type: GrantFiled: August 23, 2011Date of Patent: August 5, 2014Assignee: QUALCOMM IncorporatedInventors: Wanshi Chen, Tao Luo, Juan Montojo
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Patent number: 8798525Abstract: A relay node (800) reports its output power capability to a donor base station or other network node separately for the relay node's backhaul and access links, which may have different maximum output power. A corresponding network node (900), such as a donor base station, an Operations & Maintenance node, an Operational Support Systems node, a Self-Organizing Network node, is configured to request the relay node (800) to report its backhaul link and access link output power class capabilities or maximum output powers or rated output powers to the network node (900), and then to receive the reported capabilities in response. The report may specify a per-antenna transmit power capability; this may be specifically requested in some cases. The received relay node power-class capability information for the backhaul and access links is then used for one or several network management functions, such as radio resources management or network planning and dimensioning.Type: GrantFiled: June 29, 2011Date of Patent: August 5, 2014Assignee: Telefonaktiebolaget L M Ericsson (PUBL)Inventors: Muhammad Ali Kazmi, Olav Queseth
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Patent number: 8787269Abstract: A method for communicating with a relay station is disclosed. The method for communicating with a relay station comprises transmitting resource allocation information of downlink traffic and uplink traffic from a base station to the relay; and transmitting the downlink traffic to the relay by encapsulating the downlink traffic in accordance with the resource allocation information and receiving encapsulated uplink traffic from the relay in accordance with the resource allocation information. It is possible to enable efficient communication through a relay using a minimum interface without deterioration of throughput even in the case that a base station does not know detailed attributes of a relay existing in a system. Also, it is possible to coordinate collision through a master relay in case of a system supporting multi-hop relays.Type: GrantFiled: November 12, 2008Date of Patent: July 22, 2014Assignee: LG Electronics Inc.Inventors: Yeong Hyeon Kwon, Min Seok Noh, Sung Ho Moon, Dong Cheol Kim, Jin Sam Kwak, Hyun Woo Lee, Seung Hee Han
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Patent number: 8782119Abstract: A system is disclosed for managing service interactions in a combined service. The system includes a first aspect of service delivery for providing a first service, a second aspect of service delivery for providing a second service, a combined aspect of service delivery for providing a combined service capable of associating the first service to one of the second service. The combined service is implemented using a combined state model, which includes a predetermined number of combined states formed on the basis of the states of the first and the second service and armed detection points for detecting predetermined transitions between the combined states. The combined aspect of service delivery further includes a combined state manager adapted to transmit a control signal to the first and/or the second aspects of service delivery for inducing a predetermined state transition in the respective first and/or the second service in response to the activation of an armed detection point.Type: GrantFiled: October 20, 2008Date of Patent: July 15, 2014Assignees: Koninklijke KPN N.V., Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek TNOInventors: Hans Maarten Stokking, Fabian Arthur Walraven, Mattijs Oskar Van Deventer, Omar Aziz Niamut
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Patent number: 8780766Abstract: Certain aspects of the present disclosure provide methods and apparatus for interleaving control information for one or more nodes. For certain aspects, the control information may comprise one or more Relay Physical Downlink Control Channels (R-PDCCHs) for one or more relay nodes. The interleaving may comprise interleaving Common Reference Signal (CRS)-based R-PDCCH, wherein the resource elements (REs) for CRS and/or Channel State Information Reference Signal (CSI-RS) may be discounted in a physical resource block (PRB).Type: GrantFiled: August 15, 2011Date of Patent: July 15, 2014Assignee: QUALCOMM IncorporatedInventors: Wanshi Chen, Juan Montojo, Tao Luo, Kapil Bhattad, Peter Gaal
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Patent number: 8750786Abstract: The invention relates to a relay or repeater node (21) for use in a wireless communications system said node comprising a receive antenna (23) for receiving a signal through a wireless connection, an amplifier (30) for amplifying the signal and a transmit antenna (27) for forwarding the amplified signal, said node further comprising a mode switching unit (31) for switching between at least a first and a second mode of operation of the node in dependence of an amplification gain requirement. This enables optimization of the node for varying conditions in the network.Type: GrantFiled: December 21, 2007Date of Patent: June 10, 2014Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Peter Larsson, Niklas Johansson
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Patent number: 8743717Abstract: A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating at least one coherence cluster to a second subscriber.Type: GrantFiled: March 21, 2011Date of Patent: June 3, 2014Assignee: Adaptix, Inc.Inventors: Xiaodong Li, Hui Liu, Wenzhong Zhang, Kemin Li
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Patent number: 8738020Abstract: A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating at least one coherence cluster to a second subscriber.Type: GrantFiled: March 6, 2009Date of Patent: May 27, 2014Assignee: Adaptix, Inc.Inventors: Xiaodong Li, Hui Liu, Wenzhong Zhang, Kemin Li
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Patent number: 8730849Abstract: A method of transmitting and receiving information related to a relay station is disclosed. The present invention includes the steps of periodically receiving hop information indicating whether a hop number from the relay station to a base station is odd via a superframe header and determining a timing point for the mobile station to switch to a receive mode according to the hop information. Accordingly, a mobile station is informed of a hop number between a base station and a multi-hop relay station, whereby a waste of power of the mobile station is minimized. And, resources can be efficiently usable.Type: GrantFiled: June 26, 2009Date of Patent: May 20, 2014Assignee: LG Electronics Inc.Inventor: Ae Ran Youn
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Patent number: 8730848Abstract: A repeater (1) particularly suitable for a time-division duplex transmission of communication signals is provided. The repeater (1) comprises a master unit (2) for communicating with a base station (3) of a wireless network, at least one remote unit (4) for communicating with a network terminal, as well as a waveguide (11) connecting the remote unit (4) with the master unit (2) for transmitting the communication signals in an uplink direction (6) from the remote unit (4) to the master unit (2) and in a downlink direction (5) from the master unit (2) to the remote unit (4). Both the master unit (2) and the remote unit (4) comprise one switch (19, 20) each for changing over the signal transmission between uplink direction (6) and downlink direction (5).Type: GrantFiled: March 7, 2009Date of Patent: May 20, 2014Assignee: Andrew LLCInventors: Peter Schmid, Oliver Braz, Peter Gunzer, Mathias Schmalisch, Joerg Stefanik
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Publication number: 20140133367Abstract: Aspects of the present disclosure provide techniques for managing control channels for relays that utilize half-duplex operation. According to certain aspects, a certain type of PDCCH may be selected based on one or more criteria.Type: ApplicationFiled: November 6, 2013Publication date: May 15, 2014Applicant: QUALCOMM IncorporatedInventors: Wanshi CHEN, Peter GAAL
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Publication number: 20140133368Abstract: The present invention relates generally to a cellular telecommunications network. Each cell has at least one base station for sending messages on a downlink of a Frequency Division Duplex (FDD) to end user equipments within the cell. Other end user equipment located within the cell which have no or only poor communication directly with the base station over the FDD communicate with the base station indirectly via an intermediate end user equipment, such as a mobile telephone. The intermediate end user equipment includes an FDD transceiver and a Time Division Duplex (TDD) transceiver and an FDD/TDD interface. The intermediate end user equipment receives and sends signals to/from the base station over the FDD using the FDD transceiver and relays them via the FDD/TDD interface and the TDD transceiver towards a relevant one of the other end user equipments over a TDD.Type: ApplicationFiled: January 21, 2014Publication date: May 15, 2014Applicant: Rockstar Consortium US LPInventor: Keith Russell EDWARDS
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Publication number: 20140098718Abstract: A wireless communications system may include wireless communications devices configured to communicate with one another on a given channel via a time division based communications protocol. A communication initiation wireless communications device configured to transmit data in an initiator time slot of the given channel. A repeater wireless communications device configured to receive the transmitted data from the communications initiation wireless communications device in the initiator time slot and retransmit the data in a repeater time slot of the given channel. A receiver wireless communications device configured to determine a respective quality metric for data from each of the initiator time slot and the repeater time slot, and use data from the initiator time slot or the repeater time slot based upon the respective quality metrics thereof.Type: ApplicationFiled: October 4, 2012Publication date: April 10, 2014Applicant: Harris CorporationInventors: Nelson H. Powell, III, James P. Lill, William S. Rogers
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Patent number: 8686920Abstract: A radio repeater system is provided that utilizes miniaturized antennas and a meta-material channel isolator. The radio repeater is comprised of: a receive antenna configured to receive a signal at a desired channel frequency; a transmit antenna configured to transmit the signal at the channel frequency; an amplifier electrically connected between the receive antenna and the transmit antenna; and an array of resonating circuits disposed spatially between the receive antenna and the transmit antenna. Each resonating circuit is designed to resonant at the channel frequency and thereby suppress propagation of surface waves between the antennas.Type: GrantFiled: May 25, 2011Date of Patent: April 1, 2014Assignee: The Regents of The University of MichiganInventors: Kamal Sarabandi, Young Jun Song
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Patent number: 8687528Abstract: A network arrangement comprising a relay node (RN), wherein the RN is configured to assign a plurality of resource blocks (RBs) allocated by an enhanced node B (ENB) for at least one user equipment (UE). A network comprising an ENB, wherein the ENB is configured to allocate a plurality of RBs for an RN, wherein the RBs are assigned for at least one UE. Also disclosed is a method for communicating in a network, comprising selecting a time-division (TD) communication mode, and using resource scheduling based on the selected TD communication mode.Type: GrantFiled: November 2, 2009Date of Patent: April 1, 2014Assignee: BlackBerry LimitedInventors: Zhijun Cai, James E. Womack, Yi Yu
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Patent number: 8675693Abstract: Techniques for transmitting and receiving data in a communication system are described. A receiver may iteratively decode a data packet and may obtain better performance with more decoding iterations. The receiver may select the number of decoding iterations based on at least one parameter (e.g., packet size) to tradeoff between decoder throughput and link performance. In one design, a transmitter may obtain a transport format selected based on the number of decoding iterations, process a data packet in accordance with the transport format, and send a transmission of the data packet to the receiver. The receiver may receive the transmission of the data packet and may perform decoding for the data packet for up to the selected number of decoding iterations. The transport format and/or CQI information may be determined based on an expected degradation in link performance due to the receiver performing the selected number of decoding iterations.Type: GrantFiled: April 27, 2009Date of Patent: March 18, 2014Assignee: Qualcomm IncorporatedInventors: Ravi Palanki, Hemanth Sampath
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Patent number: 8670338Abstract: A radio communication device for executing a communication on the basis of a frequency division duplex, has a first antenna, a second antenna, a first receiver for receiving a first radio frequency signal via the first antenna, a second receiver for receiving the first radio frequency signal via the second antenna, a transmitter for transmitting a second radio frequency signal via the second antenna, a power measuring unit for measuring a first power of a component of the second radio frequency signal in a received signal received via the first antenna, and a control unit for controlling a reactance between the first antenna and the second antenna so as to lower an amount of coupling between the first antenna and the second antenna on the basis of the measured first power.Type: GrantFiled: November 17, 2010Date of Patent: March 11, 2014Assignee: Fujitsu LimitedInventor: Masahiko Shimizu
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Publication number: 20140064158Abstract: A method and arrangement in a first network node, which is serving a user equipment, for determining whether a handover of the user equipment is to be made to a second network node. The first network node and the second network node are configured for wireless communication with each other over a backhaul link in half-duplex communication mode. The first network node obtains an estimation of data-rate performance over the backhaul link, and determines whether to hand over the user equipment to the second network node based on the obtained estimation of the data-rate performance over the backhaul link.Type: ApplicationFiled: May 6, 2011Publication date: March 6, 2014Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventor: Bogdan Timus
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Patent number: 8665775Abstract: A method of performing a hybrid automatic repeat request (HARQ) of a relay station in a backhaul link of a multi-carrier system is provided. The method includes: receiving backhaul downlink data through at least one carrier between a first carrier and a second carrier; transmitting acknowledgement/not-acknowledgement (ACK/NACK) for the backhaul downlink data through an uplink component carrier; and receiving new backhaul downlink data or retransmitted backhaul downlink data in accordance with the transmitted ACK/NACK through at least one carrier between the first carrier and the second carrier, wherein the first carrier is a component carrier dedicated to the backhaul downlink between a base station and the relay station, and the second carrier is a component carrier used in both the backhaul downlink and an access downlink between the relay station and a relay user equipment at different times.Type: GrantFiled: May 24, 2010Date of Patent: March 4, 2014Assignee: LG Electronics Inc.Inventors: Hak Seong Kim, Han Byul Seo, Ki Jun Kim
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Patent number: 8654638Abstract: Systems and methods are disclosed for adjusting bandwidth of streams carried on a subscriber loop. One exemplary method comprises the steps of: determining bandwidth in use on a subscriber loop; selecting, for adjustment, at least one of a plurality of TCP streams carried on the subscriber loop; and adjusting at least one flow control parameter of the selected TCP stream based on the bandwidth in use. An exemplary multimedia terminal adapter (MTA) comprises memory and a processor. The memory stores program code, and the code programs the processor to enable the MTA to: determine bandwidth in use on a subscriber loop; select, for adjustment, at least one of a plurality of TCP streams carried on the subscriber loop; and adjust at least one flow control parameter of the selected TCP stream based on the bandwidth in use.Type: GrantFiled: December 19, 2006Date of Patent: February 18, 2014Inventor: Marcin Godlewski
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Patent number: 8654686Abstract: In an embodiment, an application server receives a request to initiate a group communication session (GCS) over a Wireless Wide Area Network (WWAN) with a communication group. The application server obtains location information of a set of devices participating in the GCS and determines that the GCS can be supported between the set of devices via a Personal Area Network (PAN), after which the application server transitions support for the GCS from the WWAN to the PAN. In another embodiment, an originator begins a periodic broadcast of a local PAN signal announcing the GCS after failing to set-up the GCS via the WWAN. Target device(s) in the communication group receive the local PAN signal, determine not to transmit their own local PAN signal and then convey a session acceptance message to the originator. The GCS is then established between the target device(s) and the originator over the PAN.Type: GrantFiled: May 16, 2011Date of Patent: February 18, 2014Assignee: QUALCOMM IncorporatedInventor: Kirankumar Anchan
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Patent number: 8654725Abstract: The present invention relates generally to a cellular telecommunications network. Each cell has at least one base station for sending messages on a downlink of a Frequency Division Duplex (FDD) to end user equipments within the cell and for receiving messages on an uplink from end user equipments within the cell. Other end user equipment located within the cell which have no or only poor communication directly with the base station over the FDD communicate with the base station indirectly via an intermediate end user equipment, such as a mobile telephone. The intermediate end user equipment includes an FDD transceiver and a Time Division Duplex (TDD) transceiver and an FDD/TDD interface.Type: GrantFiled: June 30, 2011Date of Patent: February 18, 2014Assignee: Rockstar Consortium US LPInventor: Keith Russell Edwards
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Patent number: 8649302Abstract: A receiver for receiving RF-signals in a plurality of different communication bands, each communication band including a receive frequency range and a transmit frequency range includes a plurality of receiving ports, a plurality of input circuits, a first inductor and a second inductor. Each receiving port is configured to receive RF-signals in a receive frequency range of a communication band. Each input circuit is connected to an associated receiving port for processing RF-signals applied to the receiving port. The first inductor is connected to a first group of input circuits and the second inductor is connected to a second group of input circuits, wherein the first group of input circuits and the second group of input circuits are disjunct.Type: GrantFiled: February 15, 2011Date of Patent: February 11, 2014Assignee: Intel Mobile Communications GmbHInventor: Werner Schelmbauer
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Patent number: 8644198Abstract: A front end radio architecture (FERA) is disclosed that includes a transmitter block coupled to a power amplifier (PA) via first and second input terminals. A first split-band duplexer is coupled to a first output terminal of the PA and a second split-band duplexer is coupled to a second output terminal of the PA. The PA includes a first amplifier cell and a second amplifier cell that when coupled to the first and second split-band duplexers makes up first and second transmitter chains. Only one of the first and the second transmitter chains is active when a first carrier and a second carrier have a frequency offset that is less than an associated half duplex frequency within a same split-band duplex band, thus preventing third order inter-modulation (IMD) products from falling within an associated receive channel. Otherwise, the first and the second transmitter chains are both active.Type: GrantFiled: March 11, 2011Date of Patent: February 4, 2014Assignee: RF Micro Devices, Inc.Inventors: Nadim Khlat, Alexander Wayne Hietala
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Patent number: 8630211Abstract: A wireless repeater includes a receiver circuit implemented as an intermediate frequency (IF) subsampling receiver and a transmitter circuit implemented as a direct conversion (zero-IF) transmitter. The repeater further includes a reference receiver implemented as an IF subsampling receiver to sample a portion of the transmit signal prior to over-the-air transmission for use as the reference signal for channel estimation. Highly accurate channel estimation is obtained by using the reference signal from the reference receiver as the reference signal accounts for distortions in the transmitter circuit of the repeater. The repeater may include an echo canceller to cancel an estimated feedback amount from an input signal based on the channel estimation.Type: GrantFiled: June 30, 2010Date of Patent: January 14, 2014Assignee: QUALCOMM IncorporatedInventors: Kenneth M. Gainey, James Arthur Proctor, Jr., Dhananjay Ashok Gore
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Patent number: 8611813Abstract: The instant application describes a method that includes steps of receiving, at a mobile device, an identification signal from a repeater informing the mobile device of a presence of the repeater within a proximity of the mobile device and sending, from the mobile device, an inquiry request to the repeater requesting information associated with capabilities of the repeater identified in the identification signal. The method also includes steps of receiving, at the mobile device, the requested information from the repeater; determining, based on the received information, whether to use the repeater for communication between the mobile device and a mobile communication network; and controlling the repeater based on the determination result.Type: GrantFiled: July 22, 2011Date of Patent: December 17, 2013Assignee: Cellco PartnershipInventors: Richard Lee Harvey, John Frank Pawlik, Michael Anthony Centore, III
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Patent number: 8611205Abstract: A two-way wireless repeater and booster system and method are disclosed. The system and method improve signal quality and strength for the middle hop of a three-hop repeater, between User and Network Units operating in the unlicensed bands (ISM and/or UNII), and supporting the cellular (or wireless) network communications channels. The system and method enables the support of a wider repeat spectrum or bandwidth for a given communications bandwidth in the unlicensed band.Type: GrantFiled: December 19, 2011Date of Patent: December 17, 2013Assignee: Nextivity, Inc.Inventor: Behzad B. Mohebbi
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Patent number: 8610543Abstract: A radio frequency identification (“RFID”) hybrid packet radio is provided having full duplex operability. The RFID packet radio includes an antenna and a radio that receives and transmits a packet radio signal and a RFID signal. A processor is provided in communication with the radio to perform signal detection and demodulation with respect to the RFID signal. A transmit path is provided to transport the packet radio signal and the RFID signal from the radio to the antenna. The RFID packet radio includes a first receive path for transporting a received packet radio signal from the antenna to the radio and a second receive path, different from the first receive path, to transport a received RFID signal from the antenna to the processor. The first receive path and the second receive path enable simultaneous transmission and reception of RFID signals.Type: GrantFiled: June 23, 2010Date of Patent: December 17, 2013Assignee: Tyco Fire & Security GmbHInventors: Jorge F. Alicot, Mohammad Mohiuddin, Timothy J. Relihan
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Patent number: 8611812Abstract: An ultrawideband radio transceiver/repeater provides a low cost infrastructure solution that merges wireless and wired network devices while providing connection to the plant, flexible repeater capabilities, network security, traffic monitoring and provisioning, and traffic flow control for wired and wireless connectivity of devices or networks. The ultrawidebande radio transceiver/repeater can be implemented in discrete, integrated, distributed or embedded forms.Type: GrantFiled: November 14, 2012Date of Patent: December 17, 2013Inventor: Theodore S. Rappaport
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Patent number: 8600293Abstract: A relay gain assignment method and a relay gain assignment device are provided. The method and the device are performed in a MIMO relay system comprising M spatial degrees of freedom and L relay terminals, wherein M and L are positive integers. The relay gain assignment method comprises the steps of: (a) defining a system model for the MIMO relay system, wherein the system model comprises a relay-connected noise and a destination-connected noise; (b) calculating power of the relay-connected noise and power of the destination-connected noise; (c) determining the dominating one between the power of the relay-connected noise and the power of the destination-connected noise; (d) defining a proper noise dominating model based on the determination result of the step (c); (e) calculating L relay gains for the L relay terminals; and (f) assigning each of the relay gains to the corresponding relay terminal of the MIMO relay system.Type: GrantFiled: June 20, 2011Date of Patent: December 3, 2013Assignee: Institute for Information IndustryInventors: Chun-Jung Wu, David W. Lin, Chun-Che Chien
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Patent number: 8600295Abstract: An ultrawideband radio transceiver/repeater provides a low cost infrastructure solution that merges wireless and wired network devices while providing connection to the plant, flexible repeater capabilities, network security, traffic monitoring and provisioning, and traffic flow control for wired and wireless connectivity of devices or networks. The ultrawideband radio transceiver/repeater can be implemented in discrete, integrated, distributed or embedded forms.Type: GrantFiled: November 14, 2012Date of Patent: December 3, 2013Inventor: Theodore S. Rappaport