Communication Over Free Space Patents (Class 370/277)
  • Patent number: 9042835
    Abstract: Measurement handling is of interest in a user equipment (UE) in connected mode, with the UE being configured with multiple downlink component carriers (CCs). The UE evaluates the signal quality of a specific CC of the configured CCs against a configurable threshold to determine the need for neighbor cell measurements. The UE performs neighbor cell measurements if the signal quality of the specific CC is below the configurable threshold. In this way, robust and efficient measurement handling is provided, even though the UE is configured with multiple component carriers.
    Type: Grant
    Filed: December 18, 2010
    Date of Patent: May 26, 2015
    Assignee: OPTIS CELLULAR TECHOLOGY, LLC
    Inventors: Mats Sågfors, Walter Müller
  • Patent number: 9042275
    Abstract: A tunable radio frequency (RF) duplexer is disclosed. The tunable RF duplexer includes a first hybrid coupler, a second hybrid coupler, and an RF filter circuit. The first hybrid coupler is operable to split an RF receive input signal into first and second RF quadrature hybrid receive signals (QHRSs). The first hybrid coupler is also operable to split an RF transmission input signal into first and second RF quadrature hybrid transmission signals (QHTSs). The RF filter circuit is operable to pass the first and second RF QHRSs to the second hybrid coupler and to reflect the first and second RF QHTSs back to the first hybrid coupler. Additionally, the second hybrid coupler is configured to combine the first and second RF QHRSs into an RF receive output signal, while the first hybrid coupler is configured to combine the first and second RF QHTSs into an RF transmission output signal.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: May 26, 2015
    Assignee: RF Micro Devices, Inc.
    Inventors: Ruediger Bauder, Marcus Granger-Jones, Nadim Khlat
  • Patent number: 9042276
    Abstract: A wireless communication system may include a plurality of N co-located Wi-Fi access points, each configured to communicate with at least one user equipment. The system may further include a beamformer coupled to each of the access points and coupled to at least one antenna array. The antenna array may include a plurality of antenna elements and may be configured to provide a plurality of M spatially uncorrelated beams for a coverage area of each of the N access points.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: May 26, 2015
    Assignee: Magnolia Broadband Inc.
    Inventors: Haim Harel, Stuart S. Jeffery, Kenneth Kludt
  • Patent number: 9036513
    Abstract: The method includes interacting between a first proximity transceiver which is associated to the customer device, and a second proximity transceiver; and generating thereby interaction information. The method further includes defining an TR069 Management protocol object called proximity-object and defining thereby at least one TR069 Management protocol parameter related to the interaction information, and furthermore interchanging between the server device and the customer device at least one name-value pair of the at least one parameter of the proximity-object by means of TR69 Management protocol messages.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: May 19, 2015
    Assignee: Alcatel Lucent
    Inventors: Jan Michielsens, Pascal Justen
  • Patent number: 9038160
    Abstract: A method of ensuring secure and cost effective communication of aeronautical data to and from an aircraft is provided. The method includes uplinking air-ground aircraft data communications via an aeronautical safety data link and downlinking air-ground aircraft data communications via a consumer data link separated from the aeronautical safety data link by a one-way firewall.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: May 19, 2015
    Assignee: Honeywell International Inc.
    Inventors: Donald C. Kauffman, Thomas D. Judd, Michael L. Olive
  • Patent number: 9036511
    Abstract: A method and apparatus of a User Equipment (UE) to simultaneously transmit information of a first type and information of a second type over a number of transmission symbols, the information of the first type and the information of the second type being respectively associated with a first Orthogonal Cover Code (OCC) and a second OCC, wherein a length of each OCC is equal to the number of transmission symbols. The method includes multiplying, at each transmission symbol, the information of the first type with a respective element of the first OCC to obtain a first output; multiplying, at each transmission symbol, the information of the second type with a respective element of the second OCC to obtain a second output; summing the first output and the second output to obtain a combined output; and transmitting the combined output.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: May 19, 2015
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Aris Papasakellariou, Joon-Young Cho
  • Patent number: 9030969
    Abstract: A wireless communication device is disclosed that is capable of utilizing multiple radio access technologies (RATs) in various coordinated ways so as to optimize, and enhance the versatility, of the device's communication capabilities. One or more RATs may be selected for use, either alone or in cooperation with each other, based on various conditions, such as channel conditions, traffic, data type, and priority. When conditions change, the originally-selected communication scheme may no longer be preferred. Consequently, the device can initiate a handover to another communication scheme. Transmitters corresponding to RATs that are not currently selected are controlled to enter a low-power state in order to conserve power. However, in some circumstances, the device may utilize both RATs simultaneously.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: May 12, 2015
    Assignee: Broadcom Corporation
    Inventor: James Bennett
  • Publication number: 20150117269
    Abstract: Systems and methods are described for point-to-point and point-to-multipoint full duplex networking In some embodiments, physical, medium access control (MAC), and routing protocols are integrated. In some embodiments, cross-layer optimization by the use of a full duplex capability table in performing routing and messaging is used to increase the channel utilization of full duplex networks, thereby making it possible for multiple nodes to communicate simultaneously over the same channel. In some embodiments, such full duplex capability is provided using Wi-Fi or Wi-Fi-like wireless protocols in a mesh network.
    Type: Application
    Filed: October 24, 2014
    Publication date: April 30, 2015
    Inventors: Abhijit Navalekar, Rajesh Kumar Mishra
  • Patent number: 9017255
    Abstract: A vital-signs patch for a patient monitoring system is disclosed. The patch consists of a housing that is configured to be worn on the skin of a patient. The housing contains a radio, one or more sensor interfaces, a processor, and a battery. The processor can selectably turn portions of the processor off and on and selectably turn power off and on to at least a portion of the sensor interfaces and radio. The processor includes a timer that, each time the timer times out, will turn all the parts of the processor on and start a new timing period. When the processor receives a signal, the processor will turn off power to at least a portion of the processor and at least a portion of the sensor interfaces.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: April 28, 2015
    Assignee: CareFusion 303, Inc.
    Inventors: Mark Raptis, Amir Jafri, Ganesh Kathiresan, Alison Burdett, Okundu Omeni, Mathew Key
  • Patent number: 9014124
    Abstract: A wireless transmit/receive unit (WTRU) is described. The WTRU includes a front-end unit (FEU), a signal processing unit (SPU), and a resource management unit (RMU). The FEU receives a radio frequency (RF) signal, generates time-interleaved samples, an includes: a first array of first time-interleaved samplers, a second array of second time-interleaved samplers, and a third array of third time-interleaved samplers. The SPU receives and combines the plurality of time-interleaved samples and generates a signal quality measurement and in-phase and quadrature-phase (IQ) complex samples. The RMU receives the signal quality measurement and allocates FEU resources in conjunction with a front-end unit controller (FEUC) based on the signal quality measurement. The FEUC generates control signals based on the received signal quality measurement from the RMU.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: April 21, 2015
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Tanbir Haque, Leonid Kazakevich, Scott M. Newton
  • Patent number: 9001740
    Abstract: A wireless communication device includes a front-end module (FEM) network, an RF connection, and a system on a chip (SOC). A first set of FEMs is operable to output, via an antenna, a first outbound RF signal to a first wireless communication device and receive a first inbound RF signal via an antenna. A second set of FEMs is operable to output, via an antenna, a second outbound RF signal to a second wireless communication device, wherein the second outbound RF signal is representative of the first inbound RF signal, and receive a second inbound RF signal via an antenna, wherein the first outbound RF signal is representative of the second inbound RF signal. The SOC is operable to activate the first and second sets of FEMs, facilitate the first outbound RF signal representing the second inbound RF signal, and facilitate the second outbound RF signal representing the first inbound RF signal.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: April 7, 2015
    Assignee: Broadcom Corporation
    Inventors: Hooman Darabi, Ahmadreza Rofougaran
  • Patent number: 9001704
    Abstract: An apparatus and method for adaptively adjusting a target Received Signal Strength Indicator (RSSI) for Automatic Gain Control (AGC) in a full-duplex relay apparatus with an interference cancellation function. A Signal to Interference Ratio (SIR) estimation block estimates an SIR based on an interference signal estimated from a received signal and an interference-cancelled signal determined by cancelling the estimated interference signal from the received signal. A target RSSI determination block determines a target RSSI according to the estimated SIR. An AGC block adjusts a gain for the received signal based on the determined target RSSI.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: April 7, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung-Hee Han, Sung-Yoon Jung, Sang-Boh Yun, Joo-Hyun Lee
  • Patent number: 9001713
    Abstract: A learning on a weight of an adaptive array antenna which becomes necessary for a space division multiple access is carried out while a backward compatibility with a conventional standard is maintained. When a TRQ frame and a training frame for the learning are exchanged, a spoof is applied on these frames to preferably avoid collisions with a surrounding station STA4 that follows a conventional standard. Also, after the weight of the adaptive array antenna is learnt, a STA0 multiplexes and transmits the plurality of data frames addressed to a plurality of users while a wireless resource on a spatial axis is shared by the plurality of users, so that a throughput for one-to-many, that is, for the plurality of users as a whole is improved.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: April 7, 2015
    Assignee: Sony Corporation
    Inventors: Yuichi Morioka, Hiroaki Takano, Kazuyuki Sakoda
  • Publication number: 20150085708
    Abstract: RF front-end circuitry, which includes RF switching and duplexing circuitry, a first RF diplexer, and a second RF diplexer, is disclosed. The RF switching and duplexing circuitry operates in one of a group of RF transmit modes, such that the group of RF transmit modes includes at least one transmit uplink carrier aggregation mode. The RF switching and duplexing circuitry provides at least one RF transmit signal based on the one of the group of RF transmit modes. The first RF diplexer is coupled between the RF switching and duplexing circuitry and a primary RF antenna. The second RF diplexer is coupled between the RF switching and duplexing circuitry and an auxiliary RF antenna.
    Type: Application
    Filed: September 26, 2014
    Publication date: March 26, 2015
    Inventor: Nadim Khlat
  • Publication number: 20150078215
    Abstract: Systems, methods, and apparatuses for full duplex communication on a wireless network are disclosed. In one aspect, one or more lists of non-effecting nodes are determined for one or more devices on the wireless network. A list of non-effecting nodes for a device identifies other network nodes or devices whose transmissions do not cause substantial interference with the device. When a full duplex communication is scheduled on the wireless network, a downlink message transmitted to the device may be performed concurrently with an uplink transmission from one of the non-effecting devices. This full duplex communication may be possible even if the device does not inherently support full-duplex communication on the wireless network.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 19, 2015
    Inventors: Yan Zhou, Gwendolyn Denise Barriac, Simone Merlin, Carlos Horacio Aldana
  • Publication number: 20150078212
    Abstract: Systems and apparatuses involve implementing methods that may include receiving, by enhanced user equipment (eUE), an assignment of Resource Blocks (RBs) from an eNodeB (eNB), wherein the eUE is configured to receive full-duplex transmissions; for each assigned RB, measuring interference caused by uplink transmissions from one or more legacy UEs; and reporting, to the eNB, the measured interference. The present implementations may provide an eUE-based approach, an eUE and eNB interactive approach, an eUE baseband approach, and an eUE analog approach to reducing interference for full duplex enabled mobile devices.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 19, 2015
    Inventors: Michael Eoin Buckley, Shirook M. Ali
  • Publication number: 20150078213
    Abstract: Disclosed herein is a medium access control method in a single channel wireless network environment, which is a medium access control method of a receiving side terminal capable of communicating in a full-duplex communication scheme. The medium access control method includes: receiving a frame header of a data frame; and transmitting an ACK frame in response to the frame header.
    Type: Application
    Filed: September 18, 2013
    Publication date: March 19, 2015
    Applicant: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hyuk LIM, Wooyeol Choi, Jaeseon Hwang
  • Publication number: 20150078214
    Abstract: In a medium access control method of an access point for a wireless LAN, the access point is capable of full-duplex communication, and the medium access control method includes receiving a frame header of a first data frame from a first terminal, and transmitting a second data frame to a second terminal while the first data frame is received from the first terminal.
    Type: Application
    Filed: September 18, 2013
    Publication date: March 19, 2015
    Applicant: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hyuk LIM, Jae Hyung JANG, Wooyeol CHOI, Jaeseon HWANG
  • Publication number: 20150071132
    Abstract: Embodiments of a four-port isolation module are presented herein. In an embodiment, the isolation module includes a step-up autotransformer comprising a first and second winding that are electrically coupled in series at a center node. The first port of the isolation module is configured to couple an antenna to a first end node of the series coupled windings. The second port of the isolation module is configured to couple a balancing network to a second end node of the series coupled windings. The third port is configured to couple a transmit path to the center node. The fourth port is configured to couple a differential receive path across the first end node and the second end node. The isolation module effectively isolates the third port from the fourth port to prevent strong outbound signals received at the third port from saturating an LNA coupled to the fourth port.
    Type: Application
    Filed: November 18, 2014
    Publication date: March 12, 2015
    Applicant: Broadcom Corporation
    Inventors: Mohyee MIKHEMAR, Hooman Darabi
  • Patent number: 8976713
    Abstract: There are provided a method and apparatus for transmitting and receiving signals in the same frequency band at the same time. A signal is received using a dual polarization antenna, the main axis of the polarization of the reception signal is predicted by performing adaptive polarization tracking, and polarization filtering is performed in order to remove interference. A signal is transmitted through a polarization completely orthogonal to the tracked polarization. In accordance with the present invention, in a wireless communication system, signals can be transmitted and received in the same frequency band at the same time.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: March 10, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seungjae Bahng, Hoon Lee
  • Publication number: 20150063174
    Abstract: In a transmitter apparatus of a mobile device, a radio frequency unit has transmitting terminals for sending wireless signals of different frequency bands. Transmission filters are respectively connected to the transmitting terminals and perform a filtering process for the signal of each frequency band. A first switch has a single output terminal and input terminals respectively connected to the transmission filters, performing a switching operation to connect one of the input terminals and the output terminal in response to a control signal. A power amplifier amplifies the signal transmitted through the output terminal of the first switch. A second switch has a single input terminal connected to the power amplifier, and output terminals corresponding to the transmission filters. The second switch performs a switching operation to connect the input terminal and one of the output terminals in response to the control signal.
    Type: Application
    Filed: October 14, 2014
    Publication date: March 5, 2015
    Inventor: Kyu Sung Han
  • Patent number: 8971219
    Abstract: An integrated duplexer based on electrical balance is described. The duplexer module includes a hybrid transformer. The hybrid transformer includes a primary coil and a secondary coil. The primary coil is coupled between an output of a power amplifier and an antenna. The secondary coil is coupled between an input of a low noise amplifier and ground. The duplexer also includes a balancing impedance that is coupled between the primary coil and the secondary coil.
    Type: Grant
    Filed: January 7, 2013
    Date of Patent: March 3, 2015
    Assignee: QUALCOMM Incorporated
    Inventor: Ojas M. Choksi
  • Patent number: 8971220
    Abstract: A base station including at least a transceiver switch is provided enabling the base station to transmit and receive data in either FDD or TDD mode from an antenna. The base station may be provided with a synthesizer which can be retuned from FDD to TDD mode or alternatively, an FDD and a TDD synthesizer and a switch enabling the transmitter and receiver of the base station to process FDD or TDD mode data respectively.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: March 3, 2015
    Assignee: Rockstar Consortium US LP
    Inventors: Christopher Reed, Simon Gale, Andrew Urquhart
  • Patent number: 8964607
    Abstract: A communication apparatus to be used for a newer system employing an FDD scheme in an area where an older system and the newer system coexist. The communication apparatus includes a first communication unit communicating at least a downlink data channel of the newer system using a frequency band belonging to a first frequency range (3.4-3.8 GHz); and a second communication unit communicating at least an uplink control channel of the newer system using a frequency band belonging to a second frequency range (2 GHz band) lower than the first frequency range. The second frequency range is used for uplink and downlink communications in the older system.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: February 24, 2015
    Assignee: NTT DOCOMO, INC.
    Inventors: Motohiro Tanno, Mamoru Sawahashi, Seizo Onoe, Nobuhiko Miki, Yoshihisa Kishiyama, Hidekazu Taoka
  • Publication number: 20150049649
    Abstract: A wireless access network node receives a configuration for a discovery signal for transmission by the wireless access network when in an off state. The wireless access network node in the off state transmits the discovery signal according to the configuration for detection by a user equipment (UE).
    Type: Application
    Filed: August 19, 2013
    Publication date: February 19, 2015
    Applicant: BLACKBERRY LIMITED
    Inventors: Yajun Zhu, Hua Xu, Zhijun Cai, Shiwei Gao, Yufei Wu Blankenship, Vahid Pourahmadi
  • Patent number: 8958348
    Abstract: A Hybrid Push-to-Talk (PTT) function for use in wireless communications networks, such as cellular mobile telephone networks. The cellular mobile telephone network includes a Real-Time Exchange (RTX) that interfaces to at least one Mobile Switching Center (MSC) in the cellular mobile telephone network to provide instant two-way half-duplex voice messaging within a group of users. In the Hybrid PTT function, first or initial talkbursts or volleys are transmitted by the RTX from an originating mobile to terminating mobiles on pre-established Internet Protocol (IP) sessions between the RTX and the mobiles. In addition, circuit channels are established by the RTX with the mobiles through the MSC in parallel with the first talkburst or volley. Thereafter, second or subsequent talkbursts or volleys are transmitted by the RTX from the originating mobile to the terminating mobiles on the circuit channels.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: February 17, 2015
    Assignee: Kodiak Networks, Inc.
    Inventors: Krishnakant M. Patel, Ravi Ayyasamy, Gorachand Kundu, Basem A. Ardah, Anand Narayanan, Brahmananda R. Vempati, Pratap Chandana
  • Patent number: 8958350
    Abstract: Messages transmitted between a receiver and a transmitter are used to maximize a communication data rate. In particular, a multicarrier modulation system uses messages that are sent from the receiver to the transmitter to exchange one or more sets of optimized communication parameters. The transmitter then stores these communication parameters and when transmitting to that particular receiver, the transmitter utilizes the stored parameters in an effort to maximize the data rate to that receiver. Likewise, when the receiver receives packets from that particular transmitter, the receiver can utilize the stored communication parameters for reception.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: February 17, 2015
    Assignee: Intel Corporation
    Inventors: Marcos C. Tzannes, Dongjun Lee, Todor Cooklev, Colin Lanzl
  • Patent number: 8953506
    Abstract: Methods and apparatus permitting the coexistence of multiple communication links to distinct wireless systems in a client device are disclosed. A wireless device can interface with both a primary communications system and at least one distinct communications system by managing the coexistence of active communications with the multiple communication systems. The wireless device can initially configure communications with the primary communications system for dynamically reconfigurable time multiplexed operation having scheduled periods of inactivity. The wireless device can determine timing and scheduling of communications with the distinct communications systems and can schedule the communications with the distinct communications systems during periods of inactivity in the primary communications system. The periods of inactivity may be limited to the scheduled periods of inactivity or can include unscheduled periods of inactivity occurring during active periods of the time multiplexed operation.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: February 10, 2015
    Assignee: Wi-LAN, Inc.
    Inventor: Katayoun Sohrabi
  • Publication number: 20150036555
    Abstract: A radio transceiver and corresponding method include a transmission unit configured to transmit an uplink signal to a base station. A receiving unit is configured to receive a relay signal, which comprises the uplink signal and a downlink signal received from the base station. An extraction unit is configured to extract the downlink signal from the relay signal based on the uplink signal.
    Type: Application
    Filed: January 13, 2014
    Publication date: February 5, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Won-Jae SHIN, Kyung Hun JANG
  • Publication number: 20150036556
    Abstract: The present invention enables efficient transmission/reception of a signal including control information between a base station apparatus and a mobile station apparatus. To realize this, there are provided a receiver configured to receive an enhanced physical downlink control channel from the base station apparatus; a setting unit configured to be able to set, using at least a format of downlink control information included in the received enhanced physical downlink control channel, one of a plurality of possible sets of M, M being the number of first elements that constitute the enhanced physical downlink control channel; and a monitoring unit configured to monitor a search region in which the enhanced physical downlink control channel obtained on the basis of the set possible set of M is possibly mapped.
    Type: Application
    Filed: January 17, 2013
    Publication date: February 5, 2015
    Inventors: Kimihiko Imamura, Daiichiro Nakashima, Toshizo Nogami, Kazuyuki Shimezawa
  • Patent number: 8948793
    Abstract: A computerized appointment confirmation system for communication with a mobile device comprising a database comprising data regarding an appointment and a server configured to communicate with an MMS server, the MMS server configured to send an MMS message to the mobile device and receive an MMS response message, receive a communication from the MMS server indicating receipt of the MMS response message by the MMS server, communicate with an SMS server if no MMS response message is received from the mobile device within a predetermined time period, the SMS server configured to send an SMS message to the mobile device and receive an SMS response message, update the database to indicate whether confirmation data was received by the MMS or SMS server from the mobile device, and store in the database data indicating whether an MMS response message or SMS response message was received by the mobile device.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: February 3, 2015
    Inventors: Bruce R. Birkhold, Brian Snyder
  • Patent number: 8948062
    Abstract: RRHs are physically independent from each other, are arranged in different positions, respectively, receive uplink signals from a radio terminal and transmit downlink signals to the radio terminal. A central processing unit receives the uplink signals from the plurality of RRHs and transmits the downlink signals to the plurality of RRHs. A setting unit sets a part or all of the RRHs as RRH(s) in a first group suitable for transmission of the downlink user data based on the uplink or downlink signals received by at least one of the RRHs. A transmission control unit controls the transmission of the downlink user data from the plurality of RRHs based on the setting.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: February 3, 2015
    Assignee: KYOCERA Corporation
    Inventor: Takeo Miyata
  • Patent number: 8948691
    Abstract: Systems and methods for initiating telephony calls are presented. In one example, a user selection of a desired application item is received at a computing device and a dial number associated with the desired application item is transmitted from the computing device to a wireless headset. The dial number is received at the wireless headset and a call is responsively initiated by transmitting the dial number from the wireless headset to a mobile phone device.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: February 3, 2015
    Assignee: Plantronics, Inc.
    Inventors: Frederick Sarkissian, Jeffrey Siegel
  • Publication number: 20150029904
    Abstract: Methods are provided for converting from half-duplex communication to full-duplex communication in a legacy wireless cellular system having a base station. A method includes providing in the base station separate transmit and receive paths for transmit signals and receive signals, respectively. The method further includes converting an uplink frequency band and a downlink frequency band for the base station to a same frequency band. The method also includes applying analog signal cancellation techniques at the base station to isolate a full-duplex wireless reception signal from a full-duplex wireless transmission signal.
    Type: Application
    Filed: July 17, 2014
    Publication date: January 29, 2015
    Inventors: Mohammad Khojastepour, Karthikeyan Sundaresan, Sampath Rangarajan
  • Publication number: 20150029903
    Abstract: Certain aspects of the present disclosure propose techniques for transmission time interval (TTI) bundling for physical downlink shared channel (PDSCH) in long term evolution (LTE). According to certain aspects a method is provided for wireless communications. The method may be performed, for example, by a user equipment (UE). The method generally includes identifying a transmit time interval (TTI) bundle comprising a subset of subframes from a set of subframes for transmitting data on a physical downlink shared channel (PDSCH) and receiving the data on the PDSCH in the subset of subframes.
    Type: Application
    Filed: April 29, 2014
    Publication date: January 29, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Wanshi CHEN, Hao XU, Peter GAAL, Tingfang JI
  • Publication number: 20150029905
    Abstract: The present invention relates to a data transmission method for a half-duplex device in a wireless communication system. The half-duplex device transmits first uplink data to a base station in an n-th subframe. The half-duplex device determines whether to receive downlink data which is a response to the first uplink data from the base station in an (n+r)-th (where r>1) subframe or to transmit second uplink data to the base station.
    Type: Application
    Filed: January 29, 2013
    Publication date: January 29, 2015
    Applicant: LG ELECTRONICS INC.
    Inventors: Yun Jung Yi, Joon Kui Ahn, Dong Youn Seo
  • Publication number: 20150023225
    Abstract: A full-duplex radio communication device, method and system are provided. A first polarized antenna in a dual-polarized antenna outputs a transmitted signal, and a second polarized antenna acquires a received signal which includes a first transmitted sub-signal that is directly coupled from the first polarized antenna. An analog domain cancellation module acquires a second transmitted sub-signal coupled from the transmitted signal, adjusts an amplitude and a phase parameter of the second transmitted sub-signal to convert the second transmitted sub-signal into a third transmitted sub-signal, eliminates the first transmitted sub-signal according to the third transmitted sub-signal, samples the received signal, from which the first transmitted sub-signal is eliminated, as a first digital signal, samples the second transmitted sub-signal as a second digital signal, and outputs the first digital signal and the second digital signal to a digital domain cancellation module.
    Type: Application
    Filed: October 8, 2014
    Publication date: January 22, 2015
    Inventor: Yungang Li
  • Publication number: 20150016310
    Abstract: A method for transmitting data for a half-duplex device in a wireless communication system is provided. The half-duplex device receives first downlink control information from a base station in a first subframe. The half-duplex device transmits uplink data to the base station in a second subframe. The first downlink control information includes a resource through which the uplink data is transmitted and information on the second subframe.
    Type: Application
    Filed: March 28, 2013
    Publication date: January 15, 2015
    Inventors: Yunjung Yi, Dongyoun Seo, Suckchel Yang, Joonkui Ahn
  • Publication number: 20150016309
    Abstract: Multiple wireless devices in a network perform full duplex communication in which the transmission path and receiving path are spatially separated to allow simultaneous transmission and receiving. The wireless devices can either be controlled using a centralized, or point, coordination function or a distributed coordination function. A full-duplex wireless device senses the medium during transmission by itself and selectively continues the transmission when a signal is sensed on the medium. A full-duplex wireless device measures signal being transmitted by its transmitter and estimates parameters that can be used to cancel the contribution of the locally transmitted signal to the locally received signal concurrently being received during the transmission. The transmit antenna and the receive antenna of a full-duplex wireless device can be configured to be spatially isolated from each other to minimize interference between the antenna functions.
    Type: Application
    Filed: July 14, 2014
    Publication date: January 15, 2015
    Inventors: Yonggang Fang, Li Zhang, Bo Sun, Kaiying Lv, Nan Li
  • Patent number: 8934409
    Abstract: A network element for a cellular communication network comprises gateway router logic. The gateway router logic is arranged to receive a request to create a packet data context for enabling a mobile communication device to access a packet data network; obtain an address for a gateway logic module for the packet data network, the gateway logic module being located within a femto radio network subsystem; and forward the request to create a packet data context to the obtained address for the gateway logic module.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: January 13, 2015
    Assignee: IP.Access Limted
    Inventor: David Neil
  • Patent number: 8934384
    Abstract: A navigation system includes a correlation engine configured to despread a received signal. The correlation engine includes a correlator configured to evaluate the received signal against a replica signal to produce a correlation result, and a packet encoder configured to produce a packet comprising a destination address, a source address, and the correlation result. An input/output interface is configured to provide the packet to another component in the navigation system.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: January 13, 2015
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Sanjeev Gunawardena, Jeff Dickman, Mathew A. Cosgrove
  • Patent number: 8934354
    Abstract: An RACH information transmission method and apparatus is provided for a wireless communication system. A preamble selected from a specific preamble group is transmitted. A random access response message having a Transmission Time Interval (TTI) bundling indicator is awaited in response to the preamble. A combined message generated by applying a TTI bundling based on the TTI bundling indicator with a number of TTIs is transmitted, when the random access response message is received.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: January 13, 2015
    Assignee: Samsung Electronics Co., Ltd
    Inventor: Kyeong In Jeong
  • Publication number: 20150009865
    Abstract: A server conducts a communication session between an originating device and at least one target device via a first duplex characteristic (e.g., half-duplex, full-duplex, media share, etc.). The server monitors a set of session parameters while the communication session has the first duplex characteristic. Based on the monitoring, the server detects one or more changes to at least one session parameter in the set of session parameters. The server automatically determines to transition the communication session from the first duplex characteristic to a second duplex characteristic (e.g., half-duplex, full-duplex, media share, etc.) in response to the detection. The server transitions the communication session from the first duplex characteristic to the second duplex characteristic in response to the determination.
    Type: Application
    Filed: September 26, 2014
    Publication date: January 8, 2015
    Inventors: Sandeep SHARMA, Nivedita SARKAR, Vijay Anandrao SURYAVANSHI, Mohammed Ataur Rahman SHUMAN, Ashu RAZDAN, Eric ROSEN, David Jonathan ROSS, Arulmozhi ANANTHANARAYANAN
  • Patent number: 8923167
    Abstract: A communication device reduces intermodulation interference in a simultaneous transmitter using a notch diplexing arrangement. The communication device has a radio front-end module with more than one transceiver for simultaneous transmission with opposing transmit (Tx) band notch filters in series with each duplexer output, and phase rotations into and out of the notch filters suitable for diplexing at the notch filter outputs.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: December 30, 2014
    Assignee: Google Technology Holdings LLC
    Inventors: Gregory R. Black, Ryan J. Goedken, Thomas D. Nagode, Ernie Schirmann, Lawrence R. Schumacher
  • Patent number: 8923250
    Abstract: Provided are a method and apparatus for allocating a plurality of layers to a plurality of antenna ports in a wireless communication system. The method comprises: mapping the plurality of layers to the respective antenna ports; and mapping demodulation reference signals (DMRS) of the plurality of layers to a first code division multiplexing (CDM) set or to a second CDM set, and transmitting the signals via the plurality of antenna ports.
    Type: Grant
    Filed: February 21, 2011
    Date of Patent: December 30, 2014
    Assignee: LG Electronics Inc.
    Inventors: Min Seok Noh, Jae Hoon Chung, Hyun Soo Ko, Seung Hee Han, Moon Il Lee
  • Patent number: 8923912
    Abstract: A mobile communications terminal divides a plurality of multipath signals associated with radio signals transmitted from a plurality of base stations using an S-CCPCH into groups by base station, i.e., by transmit source, maximum-ratio-combines a plurality of multipath signals associated with each same base station which is a transmit source into a composite signal, decodes the composite signal, and selects a composite signal having a good decoded result from among decoded composite signals.
    Type: Grant
    Filed: January 7, 2013
    Date of Patent: December 30, 2014
    Assignee: Sony Corporation
    Inventor: Hideji Wakabayashi
  • Publication number: 20140376416
    Abstract: An apparatus may include an antenna and a transceiver coupled to the antenna, the transceiver including a receiver operative to receive a radio-frequency (RF) signal and a transmitter operative to transmit a RF signal. The apparatus may also include an RF echo cancellation module coupled to the receiver and the transmitter, the RF echo cancellation module operative to generate an analog echo cancellation signal for the received RF signal based on a delayed version of the transmit RF signal. Other embodiments are disclosed and claimed.
    Type: Application
    Filed: December 20, 2011
    Publication date: December 25, 2014
    Inventor: Yang-Seok Choi
  • Publication number: 20140376417
    Abstract: Front end circuitry includes at least three antenna nodes, a first duplexer, a second duplexer, a first diplexer, transceiver circuitry, and front end switching circuitry. The transceiver circuitry is coupled to the first duplexer, the second duplexer, and the first diplexer. The front end switching circuitry is coupled between the antenna nodes, the first duplexer, the second duplexer, and the first diplexer and configured to selectively couple the first duplexer to a first one of the antenna nodes, selectively couple the second duplexer to a second one of the antenna nodes, and selectively couple the first diplexer to a third one of the antenna nodes.
    Type: Application
    Filed: June 12, 2014
    Publication date: December 25, 2014
    Inventor: Nadim Khlat
  • Patent number: 8917636
    Abstract: A transmitter circuit includes a first unit configured to determine a transmission power of the transmitter circuit, and a second unit configured to determine whether a transmission of data for a signaling radio bearer is scheduled by the transmitter circuit. The transmitter circuit further includes a third unit configured to suppress a transmission of transmission data by the transmitter circuit if the transmission power exceeds a threshold value and if the transmission of data for the signaling radio bearer is scheduled.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: December 23, 2014
    Assignee: Intel Mobile Communications GmbH
    Inventors: Tilman Giese, Juergen Kreuchauf, Bernd Schiele, Tobias Scholand, Alberto Perez, Ulrich Mennchen, Ralf Itjeshorst
  • Patent number: 8917637
    Abstract: A wireless communication apparatus that conducts full-duplex wireless communication with a communication partner using a transmitting antenna and a receiving antenna is provided. The apparatus includes a transmitting unit configured to transmit a signal via the transmitting antenna using a first frequency channel, a receiving unit configured to receive a signal via the receiving antenna using a second frequency channel different from the first frequency channel, and a control unit configured to control beam angle of directionality of at least one of the transmitting antenna and the receiving antenna, so that a direction of a communication path of a signal which the transmitting unit transmits and the communication partner receives, and a direction of a communication path of a signal which the communication partner transmits and the receiving unit receives, differ from each other.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: December 23, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuo Kanda, Tadashi Eguchi