Repeater Patents (Class 370/274)
  • Patent number: 9867007
    Abstract: A wireless communication network determines a fine distance between a wireless base station and User Equipment (UE). The wireless communication network comprises a wireless repeater chain that is coupled to the wireless base station and that serves the UE. The wireless base station determines Round Trip Delay (RTD) between the wireless base station and the UE. The wireless base station determines if the RTD indicates that the UE is beyond a wireless base station range. The wireless base station determines if the wireless base station serves a wireless repeater chain. If the UE is beyond the wireless base station range and the wireless base station serves a wireless repeater chain, then the wireless base station determines a number of repeater hops between itself and the UE. The wireless base station then determines the fine distance between itself and the UE based on the number of wireless repeater hops.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: January 9, 2018
    Assignee: Sprint Communications Company L.P.
    Inventors: Yu Wang, Sanghoon Sung, Dhaval Dipak Mehta, Udit A. Thakore
  • Patent number: 9794892
    Abstract: An electronic device includes a housing; at least one communication circuit positioned inside the housing, wherein the at least one communication circuit is configured to provide a first wireless communication based on a first protocol, and/or a second wireless communication based on a second protocol, a sensor configured to detect a distance between a portion of the electronic device and an external object, a control circuit configured to cause the communication circuit to provide the first wireless communication at a first power level when the distance is within a first range, and at a second power level when the distance is outside the first range, and cause the communication circuit to provide the second wireless communication at a third power level when the distance is within a second range, and at a fourth power level when the distance is outside the second range, wherein the second range is different from the first range.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: October 17, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seokwoo Lee, Soonsang Park
  • Patent number: 9693389
    Abstract: Provided is a gateway apparatus including a first communication unit that communicates with a base station in a first communication method, a second communication unit that communicates with a communication apparatus in a second communication method, an identification information holding unit that holds a correspondence between first identification information in the first communication method and second identification information in the second communication method of the communication apparatus, and a category information holding unit to share category information showing a characteristic of the communication apparatus with the communication apparatus. The first communication unit performs communication of the communication apparatus in accordance with the category information with the base station by using the first identification information of the communication apparatus.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: June 27, 2017
    Assignee: SONY CORPORATION
    Inventor: Hiroaki Takano
  • Patent number: 9674746
    Abstract: For providing one or more application services in a telecommunications network, an application service platform (150A) is provided at an access node (1 1 OA) of the telecommunications network. Via the access node (1 1 OA), a UE (10) can access the telecommunications network. Further, the UE (10) may access the telecommunications network via a further access node (1 10B). The application services are accessible to the UE (10) via the access node (1 1 OA) or via the further access node (1 1 OB). If the UE (10) is connected to the telecommunications network via the further access node (1 10B), the AS platform (150A) at the access node (1 10A) obtains context data of the UE (10) from the further access node (1 10B).
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: June 6, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mathias Sintorn, Per Synnergren, Jari Vikberg
  • Patent number: 9002260
    Abstract: A repeater system for extending cell coverage, including a frequency band translation repeater for transmitting radio frequency (RF) signals to and receiving RF signals from a base station and translating between the frequency band of THE RF signals and a different frequency band for RF transmission directly between the repeater and user equipment.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: April 7, 2015
    Assignee: Telstra Corporation Limited
    Inventor: Andrew C. Martin
  • Patent number: 9001837
    Abstract: A local area network system that includes a residential gateway in wired communication with a remote service provider and multiple set top boxes in wired communication with the residential gateway. Each set top box includes a network extender having a wired connection to a residential gateway of a local area network, a media player in communication with the network extender, and at least one wireless transceiver in communication with the network extender. The media player includes a computing processor executing instructions to format a signal received from the network extender for use by a media device. Each set top box is configured as an access point for a local area network of the residential gateway.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: April 7, 2015
    Assignee: Google Inc.
    Inventors: Cedric Fung Lam, Tony Ong, Ke Dong, Steven Fong, Yut Loy Chan, Yifan Gao, Milo Steven Medin, Dov Shimon Zimring
  • Patent number: 8923882
    Abstract: Methods, systems, and devices for determining a deployment of a wireless network are described herein. One method includes receiving, via a computing device, radio frequency data associated with a structure, wherein the structure includes a number of sensor nodes, receiving physical parameters associated with the structure, determining a number of relay nodes to deploy in the structure based, at least in part, on the radio frequency data and the physical parameters, and determining a location to deploy each of the number of relay nodes in the structure based, at least in part, on the radio frequency data and the physical parameters.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: December 30, 2014
    Assignee: Honeywell International Inc.
    Inventors: Amol Gandhi, Ganapathy Viswanath, Satish Chandra, Prashanth Lingala, Vilas Ingle, Lokesh Sambasivan
  • Patent number: 8923754
    Abstract: 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: Grant
    Filed: November 14, 2012
    Date of Patent: December 30, 2014
    Inventor: Theodore S. Rappaport
  • Patent number: 8918049
    Abstract: 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: Grant
    Filed: November 14, 2012
    Date of Patent: December 23, 2014
    Inventor: Theodore S. Rappaport
  • Patent number: 8885689
    Abstract: A first node including a physical layer device, a first transceiver and a second transceiver. The first transceiver includes a first analog front end connected to a first transmission line. The first analog front end is configured to transfer first data between the physical layer device and a second node via the first transmission line. The second transceiver includes a second analog front end connected to a second transmission line. The second analog front end is configured to transfer second data between the physical layer device and a third node via the second transmission line. A first type of the second transmission line is different than a second type of the first transmission line. The first node is configured to perform as a repeater using data repeating functions at a link layer control level.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: November 11, 2014
    Assignee: Marvell Hispania S. L.
    Inventors: Jorge Vicente Blasco Claret, Jose Luis Gonzalez Moreno, Salvador Iranzo Molinero, John Vincent Egan, Agustin Badenes Corella
  • Patent number: 8867432
    Abstract: 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: Grant
    Filed: August 9, 2012
    Date of Patent: October 21, 2014
    Assignee: KT Corporation
    Inventors: Ki-Ho Lee, Yong-Gyoo Lee, Yung-Ha Ji
  • Patent number: 8867383
    Abstract: A method may include determining an association between repeaters and mobile stations in a controlling eNodeB of a multi-hop wireless environment. The method may include receiving channel estimations based on reference signals transmitted by said mobile stations. The method may be implemented a wireless environment when legacy LTE UEs are present.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: October 21, 2014
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Pål Frenger, Niklas Johansson, Peter Larsson
  • Patent number: 8867987
    Abstract: A method for computing a gain control metric used in controlling gain in a wireless repeater operates to store correlation and normalization values associated with the gain control metric for the previous N samples in registers. For each new sample of the gain control input signal, the correlation and normalization values are computed by discarding the multiplication terms of the obsolete sample and adding the multiplication terms of the new sample to the stored correlation and normalization values. In this manner, the complexity of the computation is greatly reduced and the complexity of the computation does not increase with the integration length.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: October 21, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Michael Mao Wang, Dhananjay Ashok Gore, Tadeusz Jarosinski
  • Patent number: 8861386
    Abstract: In an embodiment, one or more fabric control circuits may be inserted in a communication fabric to control various aspects of the communications by components in the system. The fabric control circuits may be included on the interface of the components to the communication fabric, in some embodiments. In other embodiments that include a hierarchical communication fabric, fabric control circuits may alternatively or additionally be included. The fabric control circuits may be programmable, and thus may provide the ability to tune the communication fabric to meet performance and/or functionality goals.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: October 14, 2014
    Assignee: Apple Inc.
    Inventor: Gurjeet S. Saund
  • Patent number: 8830882
    Abstract: A repeater capable of emitting as little electromagnetic radiation as possible is described. The repeater can transmit communication signals between a base station and a network terminal in a radio transmission network, such as a mobile radio network. The repeater can include a transmitter that can transmit the communication signals as a radio signal to the network terminal. The repeater can also include a sensor for detecting a switching signal and a control unit that can change the transmitter between a passive operating state and an active operating state based on the switching signal. The transmission power of the transmitter can be lower in the passive operating state than in the active operating state.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: September 9, 2014
    Assignee: Andrew Wireless Systems GmbH
    Inventors: Thomas Kummetz, Arndt Pischke
  • Patent number: 8831043
    Abstract: 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: Grant
    Filed: June 19, 2008
    Date of Patent: September 9, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Bangwon Seo, Heesoo Lee, Jae Young Ahn, Hyun Kyu Chung, Chung Gu Kang, Hyun Seok Ryu, Jung Jae Yu
  • Patent number: 8797842
    Abstract: A structure and a first panel are operably disposed with respect to the structure. A first plurality of nodes is disposed within the first panel, including a first plurality of power distribution network nodes in a first power distribution network, and wherein the first plurality of nodes further comprises a first group of nodes. A second panel is operably disposed with respect to the structure. A second plurality of nodes is disposed within the second panel, including a second plurality of power distribution network nodes in a second power distribution network isolated from the first power distribution network. The second plurality of nodes further comprises a second group of nodes. A bus guardian, separate from the two panels, electrically connects the first panel and the second panel. The bus guardian is configured to network the first group of nodes and the second group of nodes in a network.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: August 5, 2014
    Assignee: The Boeing Company
    Inventor: Stephen G. Dame
  • Patent number: 8798526
    Abstract: Techniques for selecting and processing signals from different stations in a wireless network are described. A destination station may receive a direct signal from a source station and at least one relay signal from at least one relay station. The destination station may determine metrics for the source and relay stations, e.g., based on pilots received from these stations. The destination station may select at least one signal to process from among the direct and relay signals based on the metrics for the source and relay stations. The destination station may select the direct signal if the metric for the source station exceeds a threshold. The destination station may select the relay signal from each relay station having a metric exceeding at least one threshold. The destination station may process the at least one selected signal to recover a transmission sent by the source station to the destination station.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: August 5, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Tingfang Ji, Arnab Chakrabarti, Anastasios Stamoulis, Dexu Lin, Kambiz Azarian Yazdi
  • Patent number: 8768365
    Abstract: An object of the present invention is to provide a mechanism for controlling a repeater that is less costly and more flexible. The objective is achieved by a method in a control unit (150) for controlling a repeater (100) being comprised in a radio access network (110). The control unit sends a repeater control message to the repeater (100). The repeater control message is tunneled as ordinary data communication via an available radio communication channel (160) within the radio access network (110). The repeater control message is configured to control the repeater (100).
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: July 1, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Christian Hoymann, Magnus Almgren, Arne Simonsson, Per Skillermark
  • Patent number: 8687217
    Abstract: A wireless network printing system and method, the system including: a first wireless terminal to selectively connect to an ad-hoc network, where inter-device communication is directly performed between devices, and an infrastructure network, where inter-device communication is indirectly performed, via an access point (AP); a second wireless terminal to transmit data to the first wireless terminal, via the ad-hoc network; and an image forming device affiliated with the infrastructure network, to print the data, after the data has been relayed through the first wireless terminal.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: April 1, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Soo Young Jung
  • Patent number: 8660059
    Abstract: The disclosure discloses a method and a system for managing a state of a relay node. The method comprises switching (23) the state of the relay node from a connection state of serving as a user equipment to a connection state of enabling a relay function, after the relay node acquires (21) information that a base station schedules the relay node through a relay-node physical downlink control channel, or after the relay node sends (22) the base station a state-switching request of requiring to switch to the connection state of enabling a relay function.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: February 25, 2014
    Assignee: ZTE Corporation
    Inventors: Yun Deng, Si Chen
  • Patent number: 8644196
    Abstract: A device and method for routing network data through a network. The device comprises an end cap assembly which includes an end cap coupled to a wiring card having an interposer board. The method includes processing a plurality of network transmissions through an end cap, and routing the network transmissions to an interposer board.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: February 4, 2014
    Assignee: Cisco Technology, Inc.
    Inventor: Thomas Spivey
  • Patent number: 8634764
    Abstract: The invention relates to a repeater system (1) for relaying the exchanges between a base station mobile telecommunication network and a user terminal, comprising an outside antenna (10) that can communicate with the base station, as well as retransmission means (20) connected to the outside antenna, wherein the retransmission means (20) are designed to act as the interface between the outside antenna (10) and an inside antenna (30) that can communicate with the user terminal to retransmit the signals received by either one of the antennae destined for the other antenna, characterized in that the outside antenna is an optically transparent planar antenna integrated into an optically transparent panel (2) used for the indoor lighting of a building.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: January 21, 2014
    Assignee: Bouygues Telecom
    Inventors: Eduardo Motta Cruz, Vincent Hayart, Mohamed Himdi, Franck Colombel, Jean-Philippe Dessarce
  • Patent number: 8625658
    Abstract: Repeaters, event those having digital processing, exist. The significant drawback of these digital repeaters is that the computational complexity or the processing speed has to be very high in order to guarantee, particularly when compensating for echo, that the necessary delay does not excessively impair the performance. The aim of the invention is to provide a structure of the repeater in which the computational complexity is reduced without this reduction having a negative effect on the performance during signal filtering and/or suppression of natural oscillation. To this end, the invention provides that in order to carry out bandpass filtering, adaptive pre-equalization and suppression of the natural oscillation, the components of the repeater in the uplink branch and downlink branch are arranged in a designated sequence, whereby duplex filters are used for coupling both repeater branches to the antennas.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: January 7, 2014
    Assignee: Andrew Wireless Systems GmbH
    Inventor: Thomas Kummetz
  • Patent number: 8611813
    Abstract: 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: Grant
    Filed: July 22, 2011
    Date of Patent: December 17, 2013
    Assignee: Cellco Partnership
    Inventors: Richard Lee Harvey, John Frank Pawlik, Michael Anthony Centore, III
  • Patent number: 8611812
    Abstract: 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: Grant
    Filed: November 14, 2012
    Date of Patent: December 17, 2013
    Inventor: Theodore S. Rappaport
  • Patent number: 8600295
    Abstract: 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: Grant
    Filed: November 14, 2012
    Date of Patent: December 3, 2013
    Inventor: Theodore S. Rappaport
  • Patent number: 8577283
    Abstract: A repeater that facilitates communication in a wireless environment comprises a scheduling component that analyzes a schedule relating to when communications are active in the forward link direction and when communications are active in the reverse link direction, the communications are subject to time division duplexing. An amplifier that amplifies received communications as a function of the schedule. The repeater can further comprise a configuration component that configures the amplifier to amplify the received communications in one or more of a forward link direction and a reverse link direction.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: November 5, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Richard Finch Dean, Kenneth Robert Baker
  • Patent number: 8559878
    Abstract: A term for interrupting communication caused by operation of a DFS function is reduced for a wireless communication apparatus having the DFS function and a wireless communication apparatus and a wireless communication system corresponding to the DFS function of the wireless communication apparatus. In the wireless communication apparatus and the wireless communication system having a frequency changing function for changing a using frequency upon detecting out-of-target electrical waves such as electrical waves of a weather radar on a specific using frequency, information about a connection destination having a different using frequency is notified upon detecting the out-of-target electrical waves, and the connection destination is changed by switching the frequency on the basis of the information about the connection destination.
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: October 15, 2013
    Assignee: Fujitsu Limited
    Inventor: Tomonori Yasumoto
  • Patent number: 8526353
    Abstract: VoIP packets as many as the number transmittable within a time period equal to a window T1 minus a window T2 are transmitted to a radio IP network 10A in a case where the bandwidth of the radio IP network 10A is determined to be of a size not capable of transferring VoIP packets within a predetermined delay time period. In addition, a remaining number of VoIP packets excluding the number of VoIP packets transmittable within the time period equal to the window T1 minus the window T2 are transmitted to a radio IP network 10B.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: September 3, 2013
    Assignee: Kyocera Corporation
    Inventor: Tomoyoshi Yokota
  • Patent number: 8483116
    Abstract: An apparatus and a method for sending a control information for retransmission in a multihop relay wireless communication system are provided. Data received from a lower node is checked for errors. The data is transmitted to an upper node, when the data has no errors. When two or more information, which include at least one of Acknowledgement (ACK) and Negative ACK (NACK) in response to a data reception are received from one or more lower nodes, the two or more information are transmitted to the upper node at the same time. Accordingly, the RS can transmit the control information for the ARQ provided from the lower nodes, to the upper node at the same time.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: July 9, 2013
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Young-Bin Chang, Taori Rakesh, Jung-Je Son, Chang-Yoon Oh, Hyoung-Kyu Lim, Sung-Jin Lee, Hyun-Jeong Kang
  • Patent number: 8477665
    Abstract: A wireless repeater with an antenna array determines the antenna weights to modify the spatial selectivity of the antenna array to reduce interference and improve the quality of signal reception. The antenna weights are determined using an error minimizing algorithm to minimize the error between a desired receive signal and a reference signal or an adaptive metric optimization algorithm to calculate adaptively antenna weights to minimize the signal-to-noise ratio of a desired receive signal.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: July 2, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: James Arthur Proctor, Jr., Kenneth M. Gainey, Steven J. Howard, Hakan Inanoglu
  • Patent number: 8427983
    Abstract: Techniques are described for permitting uplink feedback for downlink transmission over downlink-only RF carriers to occur using uplink control channels belonging to another fully-configured RF carrier herein known as a primary carrier. Uplink feedback channels can be allocated for the downlink-only RF carriers in the uplink control regions of a fully-configured RF carrier immediately following the uplink control channels for the primary carrier are allocated. The uplink feedback channels for downlink-only RF carriers can be allocated based on global or local index number of each downlink-only RF carrier in sequential order based on ascending or descending sorting of the index numbers.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: April 23, 2013
    Assignee: Intel Corporation
    Inventors: Sassan Ahmadi, Shahrnaz Azizi
  • Patent number: 8422436
    Abstract: A method for forwarding data in forwarding networks includes: acquiring a signal transmitted from a source node to a target node in the forwarding network; selecting an antenna which is closest to the target node or a subordinate forwarding node, according to a corresponding relationship between antennas and nodes in coverage areas of the antennas; sending the signal to the antenna selected through wire transmission media; and transmitting the signal by the antenna selected. An apparatus for forwarding data and a forwarding network are disclosed as well.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: April 16, 2013
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Shulan Feng
  • Patent number: 8374093
    Abstract: A monitor terminal transmits a monitor request command to monitor a repeater station designated by an operator to a monitor server via the Internet. The monitor server detects a monitor station located in the communication range of the designated repeater station from the content of the received monitor request command, and transmits a monitor instruction command to the detected monitor station via the Internet. The monitor station intercepts a radio signal during transmission from the repeater station to a radio communication device or vice versa. Upon reception of the monitor instruction command, the monitor station transmits the intercepted radio signal as monitor data to the monitor server. The monitor server transfers the monitor data to the monitor terminal. Upon reception of the monitor data transferred from the monitor server, the monitor terminal radio-transmits the received monitor data using a radio wave format receivable by the radio communication device.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: February 12, 2013
    Assignee: Icom Incorporated
    Inventors: Kiyoshi Sakurai, Kazuyuki Seri, Tatsuo Furukawa
  • Patent number: 8331854
    Abstract: 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: Grant
    Filed: June 10, 2011
    Date of Patent: December 11, 2012
    Inventor: Theodore S. Rappaport
  • Patent number: 8320825
    Abstract: The invention relates to communication in a wireless communications network in which a cell comprises areas with different topographies, for example between indoor and outdoor areas. The communication is optimized by means of a repeater for use in a fixed wireless broadband communications system, comprising receiving means for receiving a downlink signal from a base station, signal processing means for processing the downlink signal to produce an output signal, and transmitting means for transmitting the output signal, said repeater being characterized in that it comprises means for creating diversity in the output signal.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: November 27, 2012
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Bo Göransson, Mats H. Andersson
  • Patent number: 8315556
    Abstract: An apparatus for use in a relay wireless communication system is capable of bidirectional relaying with precoding. A Base Station (BS) includes a plurality of antennas. The BS can receive a relay signal that includes a transmit symbol vector of the BS and a transmit symbol vector of a Mobile Station (MS) from a Relay Station. The BS determines power difference values corresponding to all of symbol vectors available as the transmit symbol vector of the MS. The BS further determines the transmit symbol vector of the MS or per bit Log Likelihood Ratios using the power difference values.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: November 20, 2012
    Assignees: Samsung Electronics Co., Ltd., Korea Advance Institute of Science and Technology
    Inventors: Tak-Ki Yu, Eun-Seok Ko, Yu-Seok Kim, Joo-Hwan Chun, Hyun-Jong Yang
  • Patent number: 8290430
    Abstract: The invention relates to wireless repeater systems and methods. In embodiments, such systems and methods involve receiving a wireless transmission signal; and processing the wireless transmission signal using a digital signal processing facility (DSP); wherein the DSP is adapted to filter at least one sub-band of the wireless transmission signal using a digital bandpass filter.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: October 16, 2012
    Inventor: Frank Pergal
  • Patent number: 8289888
    Abstract: Inventions relate to a field of radio communications and may be used for a creation of systems for cellular communications. The achieved technical result —an extension of a coverage area of a communication network. A system for cellular communication comprises a switch subsystem, a base station subsystem which are interconnected with a controller of base stations, mobile stations, K groups of line repeaters, a retransmission unit of radio channels. The base station comprises an antenna-feeder module of operating frequencies, a module of digital transceivers of operating frequencies, a digital unit of distribution and switching of messages, the retransmission unit of radio channels.
    Type: Grant
    Filed: March 20, 2006
    Date of Patent: October 16, 2012
    Inventor: Yury Alexeevich Gromakov
  • Patent number: 8233423
    Abstract: A display generating device includes a display screen generator generating a display screen showing connection status between each wireless communication device in a wireless network in which a plurality of the wireless communication devices operate in an autonomous and distributed manner, and a detector detecting an operation of changing connection status performed by a user via the display screen generated by the display screen generator, wherein, when the operation of changing connection status is detected by the detector, the display generating device performs a change process of reflecting the content of the operation of changing connection status.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: July 31, 2012
    Assignee: Sony Corporation
    Inventor: Kazuhiro Watanabe
  • Patent number: 8223674
    Abstract: The invention is to provide a relay signal system or a device which enables the use of signal related services such as IP phone services even if a supply of power from a commercial AC power source is stopped, for instance, due to a power outage. The signal relay device comprises: a power reception terminal that is coupled to an AC power source, a plurality of connectors containing a plurality of terminal pins for receiving and transmitting signals such as packet signals in which the terminal pins are coupled to each other by wire, and a power charging unit, which is coupled to the power reception terminal by wire and stores a backup power charged by an AC power provided from the power reception terminal by wire and supplies the backup power to wires coupled to a part or all of the plurality of connectors.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: July 17, 2012
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Kazuhiro Iwai, Masami Kanemaru
  • Patent number: 8195089
    Abstract: An apparatus and method for cooperative transmission in a multi-antenna relay wireless communication system are provided. A receiving end includes an estimator, a reader, a feedback unit and a detector. According to the present invention, the receiving end receives the signal from both the transmitting end and the relay station. Therefore, a reception gain is obtained and a high throughput can be ensured.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: June 5, 2012
    Assignees: Samsung Electronics Co., Ltd., New Jersey Institute of Technology
    Inventors: Dong-Ho Kim, Myeon-Kyun Cho, Yung-Soo Kim, Yeheskel Bar-Ness, Osvaldo Simeone, Nicola Varanese
  • Patent number: 8135336
    Abstract: A repeater including a first wireless unit that performs transmission and reception using a frequency for communicating with a base station and a second wireless unit that performs transmission and reception using a frequency for communicating with a mobile station performs a follow-up communication after broadcast communication. The repeater causes, while the second wireless unit transmits a broadcast communication signal (TCH (voice data)) to the mobile station, a transmitter (TX) provided on the first wireless unit to regularly transmit a switching signal (UI signal (for designating a direct communication wireless channel, and for setting a direct communication simplex call) for switching the mobile station to a broadcast communication channel.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: March 13, 2012
    Assignee: Hitachi Kokusai Electric Inc.
    Inventor: Mitsuo Nawata
  • Patent number: 8125939
    Abstract: To provide a technology capable of reducing a processing load on a base station controller and restraining a traffic quantity within a mobile communication system. A base station apparatus connected to a base station controller has a first establishing unit establishing a first logic communication path between the base station apparatus and the base station controller; a second establishing unit establishing a second logic communication path between the base station apparatus and another base station apparatus; and a forwarding unit forwarding data, transmitted and received with the another base station apparatus and the base station controller serving as terminal points, as data of another base station apparatus via the first logic communication path and the second logic communication path.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: February 28, 2012
    Assignee: Fujitsu Limited
    Inventors: Shunichi Murasawa, Hajime Hasegawa
  • Patent number: 8121058
    Abstract: An operational mechanism enables extending the range of cognitive networks through the use of repeater transceivers and selective routing.
    Type: Grant
    Filed: March 9, 2009
    Date of Patent: February 21, 2012
    Assignee: Investors Life Insurance Corporation
    Inventor: Bryan Kattwinkel
  • Patent number: 8112033
    Abstract: A data relay apparatus includes a first demodulating unit, demodulating a modulation signal of a first modulation mode from a first transmission source; a second demodulating unit, demodulating a modulation signal from a second transmission source, having a modulation mode higher than the first modulation mode; a combination controlling unit, providing a mapping rule necessary for performing signal combination in accordance with the modulation mode of the modulation signal from each of the first and second transmission source, the mapping rule to map the demodulated modulation signal from the first transmission source together with the demodulated modulation signal from the second transmission source to a constellation of symbols of the second modulation mode; a data combining unit, performing data combination on the demodulated modulation signal from the first transmission source and the demodulated modulation signal from the second transmission source according to the mapping rule.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: February 7, 2012
    Assignee: Fujitsu Limited
    Inventors: Jinyin Xue, Jianming Wu, Jun Tian, Hua Zhou
  • Patent number: 8064823
    Abstract: Apparatus, methods and computer program products implement a channel-aware approach for controlling a relay network operative in a wireless communications system wherein weighting matrices are used at a MIMO-capable source electronic device and at the relays where at least one of the weighting matrices is selected or derived using knowledge of channel components of at least one channel link, where the channel link may be from the relays to the destination antennas of the destination device; or from source antennas of the MIMO-capable source device to the relays, or from the source antennas of the MIMO-capable source device to the destination antennas of the destination device. In one approach weighting matrices applied at the source and relay nodes are selected from a predetermined codebook of weighting matrices in dependence on monitored channel conditions. Alternatively, the weighting matrices may be determined using an eigenvalue decomposition and power allocation (e.g.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: November 22, 2011
    Assignee: Nokia Corporation
    Inventors: Ari Hottinen, Peter Fertl
  • Patent number: 8064369
    Abstract: An XDSL signal distribution system is provided having a regenerator unit located a predetermined distance from a central office XTU unit for extending the distribution reach of the system. The regenerator is arranged to decode the payload of transmitted XDSL signals into base digital data before repackaging and regeneration onto a twisted pair copper cable. This allows the regenerator to selectively reformat the XDSL signals into a desired protocol format suitable for either an ATM protocol layer, or direct transmission. In addition, the regenerator can retransmit the XDSL signals at a fixed or variable transmission rate to optimize data through-put or system reach.
    Type: Grant
    Filed: December 1, 1998
    Date of Patent: November 22, 2011
    Assignee: Qwest Communications International Inc
    Inventors: Bruce A. Phillips, Darwei Kung, Todd A. Pett, David J. Arens, Paula C. Poberzyn, Richard H. Fink, Donald L. Brodigan, James W. Nevelle, Kurt A. Campbell
  • Patent number: 7995514
    Abstract: A Relay System (RS)-based cellular network transmission method for MT having a function of single input and single output is provided. The method includes transmitting broadcast information to all RSs and Mobile Terminals (MTs); transmitting required data to each RS in an Orthogonal Frequency Division Multiplexing (OFDM) mode; performing the operations of selection of modulation scheme, addition of CP, addition of symbols for channel estimation and selection of OFDM symbols; feeding feedback information to the Base Station (BS); transmitting a synchronization request to the BS; transmitting a synchronization acknowledgement to the RS; transmitting information to each MT belonging to the BS; transmitting information to each MT belonging to the RS; the MT belonging to the BS transmitting ACK/NACK information to the BS; the MT belonging to the RS transmitting ACK/NACK information to the BS; and the BS informing the RS of the received ACK/NACK information.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: August 9, 2011
    Assignee: Samsung Electroncis Co., Ltd
    Inventors: Eun-Taek Lim, Zongchuang Liang, Qi Wu