Crosstalk Suppression Patents (Class 370/201)
-
Patent number: 10135518Abstract: A method includes, in a transceiver (28, 160), receiving from a repeater (32, 168) a received signal that includes a desired signal for reception and an undesired replica of a transmitted signal that was transmitted from the transceiver and retransmitted by the repeater. A local copy of the transmitted signal is generated in the transceiver. The local copy is matched with the undesired replica of the transmitted signal in the received signal, by adapting the received signal while retaining the local copy non-adaptive. An interference caused by the undesired replica to the desired signal is canceled, by subtracting the local copy from the adapted received signal.Type: GrantFiled: November 4, 2013Date of Patent: November 20, 2018Assignee: NOVELSAT LTD.Inventors: Daniel Wajcer, Avihay Sadeh Shirazi, Dan Peleg, Yuval Shalom, Itzhak Wulkan
-
Patent number: 10117256Abstract: A method of allocating resources in a first wireless system, wherein the first wireless system shares a frequency spectrum with a second wireless system, is described. The method comprises detecting a level of interference to the second wireless system caused by the first wireless system on a first frequency within the spectrum; determining if transmission on the first frequency should be restricted based on the level of interference; and restricting transmissions in the first system on the first frequency if it was determined that transmission on the first frequency should be restricted while allowing normal use of the remaining portions of the frequency spectrum to continue in the first system. A system for allocating resources in a first wireless system, wherein the first wireless system shares a frequency spectrum with a second wireless system, is also described.Type: GrantFiled: March 14, 2016Date of Patent: October 30, 2018Assignee: Federated Wireless, Inc.Inventors: Masoud Olfat, Kurt Schaubach
-
Patent number: 10069617Abstract: Apparatus for communicating data between a transmitter device 16 and a first 51 and a second 52 receiver device, the receiver devices being connected, in use, to the transmitter device via a first 21 and a second 22 pair of wires respectively. Each receiver device is operable to receive signals detected as a change over time in the potential difference across the local ends of each respective pair of wires extending between the respective receiver device and the transmitter device, and the transmitter device is operable to transmit signals onto the wires at the transmitter ends thereof in order to transmit signals via a direct differential mode to each respective receiver via its respective pair of wires.Type: GrantFiled: March 2, 2016Date of Patent: September 4, 2018Assignee: BRITISH TELECOMMUNICATIONS public limited companyInventors: Anas Al Rawi, Leslie Humphrey, Trevor Linney
-
Patent number: 10069534Abstract: In one example embodiment, a system including a plurality of ports, a plurality of vectoring processors, each of the plurality of vectoring processors having a coefficient memory storing vectoring coefficients corresponding to different victim line and disturber line combinations of a plurality of communication paths connected to the plurality of ports, at least one victim line associated with two of the plurality of vectoring processors and a controller, the controller being configured to assign the victim line and disturber line combinations to the memories based on loads associated with the vectoring coefficients.Type: GrantFiled: December 7, 2016Date of Patent: September 4, 2018Assignees: ALCATEL LUCENT, NOKIA OF AMERICA CORPORATIONInventors: Carl J. Nuzman, Frank Defoort, Carl Mertens, Koenraad Schelfhout
-
Patent number: 10064087Abstract: One disclosure of the present specification provides an interference cancellation reception method. The interference cancellation reception method can comprise the steps of: cancelling an interference caused by a cell-specific reference signal (CRS) from a neighboring cell which is mixed within a signal received from a serving cell; blind-detecting a parameter related to a demodulation reference signal (DMRS) so as to discover whether the signal from the neighboring cell mixed within the received signal is a data channel modulated on the basis of the DMRS; cancelling an interference between the detected DMRS signal and a DMRS signal of the serving cell when the DMRS is detected on the basis of the DMRS-related parameter; blind-detecting a modulation order for the data channel from the neighboring cell; and receiving only the signal from the serving cell through the interference cancellation by the data channel from the neighboring cell on the basis of the modulation order.Type: GrantFiled: July 29, 2015Date of Patent: August 28, 2018Assignee: LG ELECTRONICS INC.Inventors: Jinyup Hwang, Yoonoh Yang, Sangwook Lee, Suhwan Lim, Manyoung Jung
-
Patent number: 10050762Abstract: A dynamic spectrum management (DSM) engine may determine the channel quality of one or more channels associated with the DSM engine when packets are not being transmitted over the channels. For example, the DSM engine may trigger a channel quality measurement on a non-primary channel on a condition that a predetermined period of time has lapsed since the last activity associated with the non-primary channel. Channel quality measurement may be triggered via a data sending event on the non-primary channel such as sending a data frame on the non-primary channel. The DSM engine may perform respective quality measurements on multiple channels and store the respective quality values in a database. Time-averaged channel qualities for the channels may be computed based on the stored quality values for computing transmit power distribution of across the channels.Type: GrantFiled: September 24, 2013Date of Patent: August 14, 2018Assignee: InterDigital Patent Holdings, Inc.Inventors: Jane Mack, Francois Periard, Fred M. Schreider, John Cartmell, Amith V. Chincholi, Alpaslan Demir, Zinan Lin
-
Patent number: 10049658Abstract: A system and method for speech recognition is provided. Embodiments may include receiving, at a first computing device, a far-talk signal from a far-talk computing device, the far-talk signal transmitted using a first channel and corresponding to an audible sound. Embodiments may further include receiving, at the first computing device, a near-talk signal from a near-talk computing device, the near-talk signal transmitted using a second channel and corresponding to the audible sound, wherein the far-talk signal and the near-talk signal are received during an enrollment phase of a far-talk speech recognition system. Embodiments may also include updating, at the first computing device, one or more models associated with a far-talk speech recognition system based upon, at least in part, one or more characteristics of the far-talk signal and one or more characteristics of the near-talk signal.Type: GrantFiled: March 7, 2013Date of Patent: August 14, 2018Assignee: Nuance Communications, Inc.Inventors: Joel Pinto, Josef Damianus Anastasiadis, Daniel Willett
-
Patent number: 10044407Abstract: Embodiments of the present invention provide a line initialization method, a device, and a system. The method includes: when a new line is added, releasing at least one resource unit that is on a line at a Showtime stage, so that on the line at the Showtime stage data is transmitted on a remaining resource unit that is obtained after the at least one resource unit is released; performing basic initialization on the new line by using the at least one resource unit or a subset of the at least one resource unit, so that after the basic initialization, data can be transmitted on the new line by using the at least one resource unit or the subset of the at least one resource unit; and performing crosstalk cancellation initialization on the line at the Showtime stage and the new line by using all resource units.Type: GrantFiled: December 18, 2015Date of Patent: August 7, 2018Assignee: Huawei Technologies Co., Ltd.Inventors: Xiang Wang, Yixian Liu, Jianhua Liu
-
Patent number: 10038473Abstract: In one example embodiment, a method includes obtaining a crosstalk channel and a channel matrix and determining a power controlling matrix, the power controlling matrix for regulating powers corresponding to a plurality of active communication lines. The method further includes determining a vectoring matrix based on applying the power controlling matrix to the crosstalk channel and generating vectored signals using the vectoring matrix for communication of data over the plurality of active communication lines.Type: GrantFiled: January 30, 2015Date of Patent: July 31, 2018Assignee: Alcatel LucentInventors: Carl J. Nuzman, Danny Van Bruyssel
-
Patent number: 10033429Abstract: Disclosed is a signal transmitting circuit, a retiming unit is connected with an aggressor signal line to output a previous moment signal and a current moment signal, a control signal associated with the previous moment signal and the current moment signal is output to a crosstalk compensation circuit through a logic circuit, the crosstalk compensation circuit receives a signal from a victim signal line, so as to dynamically change delays corresponding to different transmission modes in combination with inputs of the victim signal line and the aggressor signal line.Type: GrantFiled: June 29, 2017Date of Patent: July 24, 2018Assignee: MONTAGE TECHNOLOGY (SHANGHAI) CO., LTD.Inventor: Zixin Wu
-
Patent number: 10027495Abstract: The embodiment of the present document relates to an idle scheduling method and a home network node, wherein the method includes: a domain master node performing an idle scheduling on intra-domain ordinary nodes according to an idle scheduling policy; when the domain master node determines that all the intra-domain ordinary nodes are in a energy-saving mode according to the idle scheduling information of all the intra-domain ordinary nodes, the domain master node entering into the energy-saving mode, and when all the intra-domain ordinary nodes are in an idle state, the domain master node being in the idle state.Type: GrantFiled: July 31, 2013Date of Patent: July 17, 2018Assignee: XI'AN ZHONGXING NEW SOFTWARE CO., LTD.Inventors: Wu Chen, Biduo Chen, Aijun Xu, Weiliang Zhang
-
Patent number: 9985689Abstract: A method and an apparatus for coordinating multiple power line networks are provided. The method includes: obtaining, by a central coordinator of a first power line network of multiple power line networks, signaling timeslot information of a second power line network; and determining, according to the signaling timeslot information, whether a predetermined signaling timeslot of the first power line network conflicts with a signaling timeslot of the second power line network, and if the predetermined signaling timeslot conflicts with the signaling timeslot of the second power line network, determining, according to a predetermined backoff rule, a contention-free timeslot as a signaling timeslot of the first power line network. Signaling timeslots of different networks can be staggered as sequential as possible, which ensures non-confliction of the signaling timeslots, thereby avoiding signal interference and attenuation in a shared network.Type: GrantFiled: October 20, 2017Date of Patent: May 29, 2018Assignee: Huawei Technologies Co., Ltd.Inventors: Guobin Zhang, Bucai Ye
-
Patent number: 9973633Abstract: A pre-distortion system for improved mobile device communications via cancellation of nonlinear distortion is disclosed. The pre-distortion system may transmit an acoustic signal from a network to a device, wherein the acoustic signal includes a linear signal and a nonlinear cancellation signal that cancels at least a portion of nonlinear distortions created once a loudspeaker in the device emits the linear signal. Thus, when a loudspeaker of a mobile device is operating and nonlinear distortions are generated by the loudspeaker or adjacent components of the mobile device in close proximity to the loudspeaker, the pre-distortion system may create one or more nonlinear cancellation signals in the network. The nonlinear cancellation signal may be combined with the linear signal sent to the loudspeaker to cancel the nonlinear distortion signal created by the loudspeaker emitting acoustic sounds from the linear signal. Thus, the nonlinear cancellation signal becomes a pre-distortion signal.Type: GrantFiled: November 17, 2014Date of Patent: May 15, 2018Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.Inventors: Horst J. Schroeter, Donald J. Bowen, Dimitrios Dimitriadis, Lusheng Ji
-
Patent number: 9960944Abstract: A receiving apparatus includes: a first decoder configured to decode a signal transmitted through a first layer from a layered division multiplexing (LDM) signal using a parity check matrix to generate low density parity check (LDPC) information word bits and parity bits; an encoder configured to encode the LDPC information word bits, generated by decoding the signal transmitted through the first layer, using the parity check matrix to generate parity bits corresponding only to preset columns in the parity check matrix; and a second decoder configured to decode a signal obtained by removing, from the LDM signal, a signal corresponding to the LDPC information word bits generated by decoding the signal transmitted through the first layer, the parity bits generated by the encoder, and the parity bits generated by the first decoder except the parity bits generated by the encoder, thereby to generate information word bits transmitted through a second layer.Type: GrantFiled: October 19, 2016Date of Patent: May 1, 2018Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jung-hyun Park, Jung-pil Yu, Sung-kyu Jung, Changhoon Choi
-
Patent number: 9954631Abstract: Time division duplex transmission over copper physical channels is managed. In one example, upstream time slots for upstream transmission in a first physical channel are scheduled. Downstream time slots for downstream transmission in a second physical channel are scheduled. Transmission in the upstream time slots is substantially not simultaneous with transmission in the downstream time slots.Type: GrantFiled: October 12, 2012Date of Patent: April 24, 2018Inventors: Kenneth Kerpez, George Ginis, Marc Goldburg, Ardavan Maleki Tehrani
-
Patent number: 9948769Abstract: At least one example embodiment discloses a method of determining crosstalk for at least one first line in a communication system having a plurality of second lines. The method includes obtaining at least one pilot matrix representing a sequence of pilot signals and transmitting pilot signals across the plurality of second lines in accordance with the at least one pilot matrix. The method further includes obtaining measurement vectors for the at least one first line on a plurality of subcarriers, in response to the transmitted pilot signals, determining a weighted vector, the weighted vector being a weighted combination of the measurement vectors and determining a crosstalk coupling vector based on the determined weighted vector.Type: GrantFiled: March 26, 2015Date of Patent: April 17, 2018Assignee: Alcatel-Lucent USA Inc.Inventors: Amin Emad, Carl J. Nuzman, Emina Soljanin
-
Patent number: 9945901Abstract: Many systems implement calibration schemes to measure and correct for the non-idealities. Such systems can be complex, which makes them impractical to implement since the cost can potentially outweigh the benefits of the calibration scheme. To implement efficient and effective calibration, non-idealities or errors of a system are detected, in foreground or in background, in a piecewise fashion based on, e.g., correlations of an output signal with an uncorrelated random signal, where the correlation results are processed separately for different open intervals of an error signal. Second order and third order correction terms can be easily determined based on three open intervals. In various embodiments, the calibration scheme can detect and correct for linear errors, (linear and non-linear) memory/frequency dependent errors, static nonlinearity errors, Hammerstein-style non-linearity errors, and Wiener-style non-linearity errors (cross-terms).Type: GrantFiled: October 18, 2016Date of Patent: April 17, 2018Assignee: ANALOG DEVICES, INC.Inventor: Eric Otte
-
Patent number: 9942125Abstract: A method of detecting a fault in an Ethernet system is disclosed. The system includes multiple physical channels, each channel bounded by a pair of link partner transceivers. The method includes selectively coupling at least a first one of the physical channels to a second one of the physical channels. A test pattern is then transmitted along the first and second physical channels. Cross-channel information corresponding to the transmitted test pattern is received. An echo canceller in the second of the multiple channels is trained to generate an impulse response corresponding to the received crosstalk information. For a selected segment of the system, the generated impulse response is compared to an expected impulse response for that selected segment. The determination of whether a fault exists is based on the comparison.Type: GrantFiled: September 24, 2012Date of Patent: April 10, 2018Assignee: Aquantia Corp.Inventor: Hossein Sedarat
-
Patent number: 9906353Abstract: A transmission scheme for a plurality of transceiver pairs, the transmission scheme including a partition of at least a downlink transmission portion of a data transmission frame into a plurality of precoding intervals, each precoding interval being associated with a respective active group of transceiver pairs, each active group of transceiver pairs including a plurality of transceiver pairs, each precoding interval termination no earlier than the end of a respective downlink data transmission period associated with at least one of the transceiver pairs in the respective transceiver active group, wherein, a different respective precoder is associated with each of the active groups and wherein, at least the transmitting ports of the first transceivers, which are not members of an active group, turn off.Type: GrantFiled: November 21, 2016Date of Patent: February 27, 2018Assignee: Sckipio Technologies S.I LtdInventors: Rami Verbin, Guy Reina, Rani Keren
-
Patent number: 9859971Abstract: Disclosed are an apparatus and method for communicating with satellite based on analog network coding. A method for satellite communication, according to one embodiment of the present invention, is a method for satellite communication of a satellite terminal and comprises the steps of: receiving transmission data from a feeder that directly transmits the transmission data to a satellite; receiving a superposed signal, in which the transmission data and reception data corresponding to the transmission data have been analog network coded, from the satellite; and extracting the reception data from the superposed signal using the superposed signal and the received transmission data.Type: GrantFiled: June 5, 2014Date of Patent: January 2, 2018Assignee: Ajou University Industry-Academic Cooperation FoundationInventors: Jae Sung Lim, Jung Bin Kim, Hong Jun Noh
-
Patent number: 9848030Abstract: A method and technique for identity service management in limited connectivity environments is disclosed. The technique includes: providing a mediator between an identity management service provider and managed endpoints of a computing environment, the mediator comprising adapters for interfacing with the managed endpoints; extracting account data, by the mediator, from the managed endpoints; storing the extracted data, by the mediator, when a direct connection between the mediator and the identity management service provider is unavailable; and exporting the stored data to the identity management service provider in response to a direct connection between the mediator and the identity management service provider becoming available.Type: GrantFiled: September 26, 2014Date of Patent: December 19, 2017Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Joseph M. Dennis, Girish B. Verma
-
Patent number: 9819521Abstract: The present invention is directed to data communication systems and methods. More specifically, embodiments of the present invention provide a communication system that removes reflection signals. A digital data stream is processed through both tentative path and the main path. The tentative path uses a first DFE device and a reflection cancellation circuit to generate a correction signal for removing reflection signal from the digital data stream. A second DFE device removes ISI and other noises from the corrected digital data stream. There are other embodiments as well.Type: GrantFiled: April 10, 2017Date of Patent: November 14, 2017Assignee: INPHI CORPORATIONInventors: Jamal Riani, Sudeep Bhoja
-
Patent number: 9813166Abstract: A gateway apparatus for wireless communication is provided. The gateway apparatus includes an interface to which a plurality of electronic devices within a first range connect wirelessly, and a controller configured to provide a communication connection using a frequency band to each of the plurality of electronic devices so that each of the electronic devices connected to the interface is enabled for wireless communication, to split the frequency band into a plurality of bands respectively corresponding to the plurality of electronic devices connected to the interface when it is determined that communication interference occurs between the electronic devices, and to allocate the split bands to the respective electronic devices to control the electronic devices to perform communications through the split bands.Type: GrantFiled: September 16, 2013Date of Patent: November 7, 2017Assignee: Samsung Electronics Co., Ltd.Inventor: Chung-suk Han
-
Patent number: 9806762Abstract: Embodiments of the present invention provide a method, and an apparatus for supporting a non-vector line. The method includes: selecting n non-vector lines TL from lines that are in an initializing stage, where n is an integer greater than or equal to 1; controlling to perform no further initializing for other lines that are in the initializing stage except the TL until the TL fully enters a data transmission stage; and before the TL enters the data transmission stage, estimating a far-end crosstalk coefficient CTL-SV from the TL to a vector line SV that is in the data transmission stage, where the CTL-SV is used in signal processing to eliminate far-end crosstalk caused by the TL to the SV.Type: GrantFiled: August 3, 2016Date of Patent: October 31, 2017Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Xiang Wang, Cheng Li
-
Patent number: 9787357Abstract: A method for reducing far-end crosstalk in a digital line system is provided. The method includes receiving a noise related value fed back from a first receiving end to a first transmitting end over a first line. The method further includes pre-coding, a first signal and crosstalk source signals according to values of filtering parameters to form a synthesized signal corresponding to the first line. The crosstalk source signals are related to second signals over a second line. The method further includes transmitting the synthesized signal from the first transmitting end to the first receiving end over the first line. A corresponding device for reducing far-end crosstalk in a digital line system is provided.Type: GrantFiled: June 9, 2015Date of Patent: October 10, 2017Assignee: Huawei Technologies Co., Ltd.Inventor: Liming Fang
-
Patent number: 9785130Abstract: A method for power management includes applying a decentralized control to manage a large-scale community-level energy system; obtaining a global optimal solution satisfying constraints between the agents representing the energy system's devices as a state-based potential game with a multi-agent framework; independently optimizing each agent's output power while considering operational constraints and assuring a pure Nash equilibrium (NE), wherein a state space helps coordinating the agents' behavior in energy system to deal with system-wide constraints including supply demand balance, battery charging power constraint and satisfy system-wide and device-level (local) operational constraints; and controlling distributed generations (DGs) and storage devices using the agent's output.Type: GrantFiled: April 7, 2015Date of Patent: October 10, 2017Assignee: NEC CorporationInventors: Ali Hooshmand, Ratnesh Sharma
-
Patent number: 9787459Abstract: Non-linear interference cancellation techniques are provided for wireless transceivers. Non-linear reduction of interference of a transmit signal on a received signal in a transceiver device, comprises applying the transmit signal to a first non-linear system; applying the received signal to a second non-linear system; and subtracting an output of the first non-linear system output from an output of second non-linear system output to produce an interference mitigated received signal. The first non-linear system and/or the second non-linear system can be implemented using one or more of a Volterra series and a Generalized Memory Polynomial Model. System parameters of the first non-linear system and/or the second non-linear system are adapted to reduce a power of the interference mitigated received signal.Type: GrantFiled: March 31, 2014Date of Patent: October 10, 2017Assignee: Intel CorporationInventor: Kameran Azadet
-
Patent number: 9780830Abstract: A device for limiting crosstalk between vectoring modems connected to a group of communication lines comprises a subgroup determining element that obtains information of the division into subgroups, each subgroup being made up of lines experiencing cross-talk from each other, and assigns operational pilot sequences to the group according to the division, an operational sequence transmission control element that transmits the operational sequences on the lines to the modems, which sequences are mutually orthogonal to each other and each communication line receives a corresponding sequence, and a corrective action determining element that obtains cross-talk measurements related to the transmitted operational pilot sequences and determines, for each subgroup, cross-talk and corrective action based on measurements made for a number of sequence symbols, which number corresponds to the minimum number required for obtaining mutually orthogonal pilot sequences within the subgroup.Type: GrantFiled: August 31, 2011Date of Patent: October 3, 2017Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Chenguang Lu, Per-Erik Eriksson
-
Patent number: 9780956Abstract: A method is provided which comprises: adjusting a plurality of times a transmit power to vary between a first setting and a second setting on a first Digital Subscriber Line (DSL line) to optimize energy consumption for the first DSL line; measuring or estimating a change in a performance of a second DSL line neighboring the first DSL line caused by a change in crosstalk on the second DSL line generated by the first DSL line in response to adjusting the transmit power of the first DSL line; and identifying one or more DSL lines among a plurality of DSL lines determined to safely operate in a low-power mode by identifying which of the plurality of DSL lines exhibit a crosstalk coupling to neighboring DSL lines below a specified threshold.Type: GrantFiled: May 3, 2012Date of Patent: October 3, 2017Inventors: Kenneth Kerpez, Wonjong Rhee, Georgios Ginis
-
Patent number: 9774419Abstract: A communication device receives a transmitted signal from another communication device. This transmitted signal is generated within the another communication device based on predetermined digital data. The communication device then generates a first reference signal based on a copy of the predetermined digital data and subtracts the first reference signal from the transmitted signal to generate a first residual signal. The communication device then identifies at least one adaptation parameter based on the first residual signal and adapts the first reference signal using the at least one adaptation parameter to generate a second reference signal so that a first characteristic of the transmitted signal and a second characteristic of the second reference signal are approximately equal.Type: GrantFiled: March 31, 2015Date of Patent: September 26, 2017Assignee: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.Inventor: Thomas Joseph Kolze
-
Patent number: 9742515Abstract: Aspects of the disclosure are related to identifying whether an apparatus (e.g., base station, access point, etc.) is transmitting using a CRS based transmission scheme or a UE-RS based transmission scheme. Such detection may be necessary for PDSCH interference cancellation (IC) of a neighboring cell since a UE may not know which transmission scheme is used by the neighboring cell. For instance, the UE may know the transmission scheme of the serving cell, but the UE may not know the transmission scheme of a neighboring non-serving cell. As such, aspects of the disclosure provide for a blind detection algorithm to identify or determine a transmission mode or transmission scheme of a neighboring cell to then apply interference cancellation (IC) to an interfering signal received from the neighboring cell.Type: GrantFiled: August 1, 2014Date of Patent: August 22, 2017Assignee: QUALCOMM IncorporatedInventors: Kapil Bhattad, Yi Huang, Tao Luo, Taesang Yoo
-
Patent number: 9742503Abstract: An electronic device includes a signal sender that sends a pair of transmission signals of mutually opposite phases to an external device via a pair of transmission paths. The signal sender differentiates each amplitude of the pair of transmission signals.Type: GrantFiled: May 20, 2015Date of Patent: August 22, 2017Assignee: Funai Electric Co., Ltd.Inventor: Shinichi Kodama
-
Patent number: 9703563Abstract: A first of a plurality of data lanes of a first of a plurality of processor links is determined to have a weakest of base performance measurements for the plurality of data lanes. A switching data pattern is transmitted via a first set of the remainder processor links and a quiet data pattern is transmitted via a second set of the remainder processor links. If performance of the first data lane increases vis-Ã -vis the corresponding base performance measurement, the first set of remainder processor links is eliminated from the remainder processor links. If performance of the first data lanes decreases vis-Ã -vis the corresponding base performance measurement, the second set of remainder processor links is eliminated from the remainder processor links. The above operations are repeatedly executed until an aggressor processor link that is determined to decrease performance of the first of the plurality of data lanes is identified.Type: GrantFiled: November 4, 2013Date of Patent: July 11, 2017Assignee: International Business Machines CorporationInventors: Robert W. Berry, Jr., Anand Haridass, Prasanna Jayaraman
-
Patent number: 9672136Abstract: A crosstalk emulator for a cable, preferably a xDSL telecommunication cable, represented by several emulation paths each comprising a first segment (L1a/L4a) serially connected to a second segment (L1b/L4b) on a printed circuit board PCB. The first and second segments of a same emulation path form an angle, e.g. of about 90 degrees, at their junction point. All the emulation paths have a same length and preferably run in parallel over the PCB. As a result, each emulation path crosses only once (X21) any other emulation path at a cross-point. Furthermore, the area occupied by the crosstalk emulator on the PCB is reduced with respect to a matrix topology, whereby the present topology can easily be extended to large numbers of couplings, allowing design guidance for a passive coupling emulator with a large amount of coupling elements (CP) at the cross-points.Type: GrantFiled: November 23, 2011Date of Patent: June 6, 2017Assignee: Alcatel LucentInventors: Dirk Vanderhaegen, Bart Hillaert, Wim Troch
-
Patent number: 9642148Abstract: A method for mitigating interference in a wireless network includes an eNodeB and/or a UE identifying interference. The eNodeB may identify the interfering TDD configurations based on a downlink signal of a neighboring eNodeB received during an uplink timeslot for a UE associated with the eNodeB. Likewise, the UE may identify an interfering UE based on an uplink signal received during a downlink timeslot for an eNodeB associated with the UE. The eNodeB performs interference management based at least in part on the identified interference.Type: GrantFiled: April 29, 2013Date of Patent: May 2, 2017Assignee: QUALCOMM INCORPORATEDInventors: Hao Xu, Wanshi Chen, Peter Gaal, Stefan Geirhofer, Yongbin Wei
-
Patent number: 9621316Abstract: A method for a terminal for receiving a downlink signal according to an embodiment of the present invention comprises the steps of: receiving, from a serving cell, a cell-specific reference signal (CRS) information for a neighboring cell; and receiving, from a serving cell and/or a neighboring cell, a physical downlink shared channel (PDSCH), wherein the CRS of the serving cell is invalidated if the terminal receives a PDSCH from the neighboring cell.Type: GrantFiled: July 3, 2013Date of Patent: April 11, 2017Assignee: LG Electronics Inc.Inventors: Eunsun Kim, Byounghoon Kim, Kijun Kim, Hanbyul Seo, Jonghyun Park
-
Patent number: 9558758Abstract: A speech-controlled appliance that provides a user with an indication of when a speech input will likely not be acted upon by the device due to a poor signal-to-noise conditions. The device may provide this indication even without a speech input, so that the user may be informed that a command will not be acted upon before speaking the command. The indication may be, for example, lighting a visual indicator on the device, and/or outputting an audible notification via a speaker. The visual indicator may be a same indicator the device uses to indicate when its microphone(s) are muted so that the user will intuitively recognize that a speech command will not be acted upon by the device.Type: GrantFiled: May 15, 2015Date of Patent: January 31, 2017Assignee: AMAZON TECHNOLOGIES, INC.Inventors: Kurt Wesley Piersol, Michael Alan Pogue
-
Patent number: 9531461Abstract: Disclosed is a method of grouping transmitter-receiver pairs for communicating over a communications network. For each group of a set of groups of transmitter-receiver pairs, the pairs of the group execute an iterative interference alignment technique for I1 iterations on signals transmitted by the group. Each transmitter of the group successively sends a pilot signal that has been precoded by a matrix resulting from that execution. Each receiver of the group evaluates a metric representative of a distance between a vector subspace generated by the pilot signal transmitted by the transmitter with which it forms a pair and a vector subspace generated by interferences determined from the pilot signals transmitted by the other transmitters. A central unit calculates a global metric associated for each group on the basis of the metrics from the receivers of the group and selects from the set a group that optimizes the global metric.Type: GrantFiled: December 19, 2012Date of Patent: December 27, 2016Assignee: OrangeInventors: Ahmed Saadani, Slim Ben Halima
-
Patent number: 9525459Abstract: Embodiments of the present invention disclose a method and a related device and system for crosstalk cancellation processing on a port line of an access device. The method for crosstalk cancellation processing on a port line of an access device includes: obtaining line configuration information of another access device connected to—a first access device, and line group identities of different port lines belonging to a same cable bundle are the same; respectively obtaining, by the first access device, according to the line configuration information of the another access device, a coefficient of an effect from a port line of the another access device having a same line group identifier as that of a local port line on the local port line; and performing crosstalk cancellation processing on the local port line on the basis of the obtained effect coefficient.Type: GrantFiled: July 30, 2014Date of Patent: December 20, 2016Assignee: Huawei Technologies Co., Ltd.Inventor: Daoyu Pei
-
Patent number: 9521628Abstract: The present disclosure discloses a carrier bearing method and device, and a base station. The carrier bearing method includes: obtaining transmit power of each carrier borne on all power amplifiers in a radio remote unit after detecting that transmit power of a carrier borne on a power amplifier in the radio remote unit changes; adjusting a correspondence between the carriers and the power amplifier in the radio remote unit according to the obtained transmit power; and bearing each carrier on its corresponding power amplifier according to the adjusted correspondence. The device and base station are used to implement the above method.Type: GrantFiled: May 13, 2013Date of Patent: December 13, 2016Assignee: Huawei Technologies Co., Ltd.Inventors: Shunqing Zhang, Shugong Xu, Haicun Hang, Wei Zhang
-
Patent number: 9509368Abstract: The method and a device determine a parameter that characterizes a number of spare positions to be used for cancelling the crosstalk of lines joining a digital subscriber line vectoring group. The vectoring includes cancelling the crosstalk caused by a maximum number of lines of the vectoring group and reserving the number of spare positions. In order to provide a method and a device for determining a number of spare positions such that the vectoring group operates efficiently, the method includes determining a residual crosstalk metric that depends on a residual crosstalk between at least two subscriber lines of the vectoring group; and determining the parameter that characterizes the number of spare positions depending on the at least one residual crosstalk metric by successively modifying the parameter until the residual crosstalk metric fulfills a termination condition.Type: GrantFiled: July 24, 2013Date of Patent: November 29, 2016Assignee: Alcatel LucentInventors: Issam Wahibi, Beno{hacek over (i)}t Drooghaag
-
Patent number: 9503187Abstract: An apparatus for retrieving data from an optical wavelength-division multiplexing (WDM) signal received via a WDM path in a wavelength-division multiplexing transmission system having a plurality of channels associated with different wavelengths includes a demultiplexer configured to split the optical WDM signal into a plurality of signals each associated with one of the channels, and a calculator configured to calculate data associated with a respective one of the channels based on the signal associated with the respective channel and taking information on determined crosstalk interferences of other channels to the respective channel into consideration.Type: GrantFiled: April 17, 2015Date of Patent: November 22, 2016Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventor: Kai Habel
-
Patent number: 9491680Abstract: A method for assisting a mobile device to perform positioning measurements on positioning signals periodically transmitted by at least some of a plurality of cells in a wireless communication network includes determining an estimated position of the mobile device and then determining a first set of candidate cells of the plurality of cells based on the estimated position of the mobile device. The method also includes estimating an expected interference of each respective positioning signal that is transmitted by each candidate cell of the first set and selecting a subset of cells from the first set of candidate cells based on the estimated expected interference. Assistance data identifying the selected subset of cells is then generated and sent to the mobile device.Type: GrantFiled: October 28, 2014Date of Patent: November 8, 2016Assignee: QUALCOMM IncorporatedInventors: Mark Leo Moeglein, Guttorm R. Opshaug, Weihua Gao, Ferit Akgul
-
Patent number: 9491772Abstract: Methods and systems are provided for placeshifting data. An exemplary method of transmitting data from a source device to a destination device over a first communications channel involves identifying interference with transmission of the data from the source device to the destination device and initiating operation of a third device on a second communications channel after identifying the interference, wherein the operation of the third device is configured to mitigate the interference with the data transmission over the first communications channel.Type: GrantFiled: December 19, 2013Date of Patent: November 8, 2016Assignee: EchoStar Technologies L.L.C.Inventors: Christopher William Bruhn, Phuc H. Nguyen
-
Patent number: 9473240Abstract: A communication system, device and method for providing twisted pair multilink communications are provided. The system includes a first operator end terminal unit configured to couple to a first customer premises equipment (CPE) via a first twisted pair and configured to exchange first communications with the first CPE for transmission of a first part of traffic data of the first CPE over a first communication link on a first twisted pair. The system further includes a second operator end terminal unit configured to couple to a second CPE via a second twisted pair and configured to exchange second communications with the first CPE for transmission of a second part of traffic data of the first CPE over a second communication link that is a crosstalk link induced by the second twisted pair to the first twisted pair.Type: GrantFiled: March 13, 2015Date of Patent: October 18, 2016Assignee: Futurewei Technologies, Inc.Inventor: Sanjay Gupta
-
Patent number: 9444516Abstract: Embodiments of the present invention provide a method, an apparatus, and a system for supporting a non-vector line. The method includes: selecting n non-vector lines TL from lines that are in an initializing stage, where n is an integer greater than or equal to 1; controlling to perform no further initializing for other lines that are in the initializing stage except the TL until the TL fully enters a data transmission stage; and before the TL enters the data transmission stage, estimating a far-end crosstalk coefficient CTL-SV from the TL to a vector line SV that is in the data transmission stage, where the CTL-SV is used in signal processing to eliminate far-end crosstalk caused by the TL to the SV.Type: GrantFiled: January 27, 2014Date of Patent: September 13, 2016Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Xiang Wang, Cheng Li
-
Patent number: 9444538Abstract: The radio communication system includes: a transmitter that transmits a first polarized signal and a second polarized signal to a receiver and terminates the transmission of the second polarized signal in accordance with an instruction from the receiver; and the receiver that receives the polarized signal from the transmitter, determines whether or not a reception quality of the second polarized signal becomes lower than a threshold value, and issues an instruction to the transmitter to terminate transmission of the second polarized signal to the transmitter when the reception quality becomes less than the threshold value.Type: GrantFiled: September 9, 2010Date of Patent: September 13, 2016Assignee: NEC CORPORATIONInventors: Katsushi Yamamoto, Yoshio Ito
-
Patent number: 9413516Abstract: A full-duplex transceiver is provided with componentry and methods for cancellation of nonlinear self-interference signals. The transceiver is capable of receiving an incoming radio-frequency signal that includes both a desired radio-frequency signal component and a self-interference component caused by the transceiver's own radio-frequency transmission. The transceiver demodulates the incoming radio-frequency signal to generate a first demodulated signal. The transceiver combines an analog corrective signal with the first demodulated signal to generate a second demodulated signal with reduced self-interference. The transceiver processes the first and second demodulated signals to determine a desired incoming baseband signal and to determine nonlinear components of the self-interference signal, such as nonlinearities introduced by the transceiver's power amplifier.Type: GrantFiled: June 10, 2014Date of Patent: August 9, 2016Inventor: Amir Keyvan Khandani
-
Patent number: 9414242Abstract: An embodiment of the present invention relates to a method for measuring interference by a terminal in a wireless communication system and includes: receiving neighboring cell specific reference signal (CRS) information; performing CRS interference cancellation on the basis of the CRS information; and measuring interference by applying a correction value to the result of the CRS interference cancellation, wherein the correction value is set for each sub-frame set for limited measurement.Type: GrantFiled: April 12, 2013Date of Patent: August 9, 2016Assignee: LG ELECTRONICS INC.Inventors: Eunsun Kim, Hanbyul Seo, Byounghoon Kim, Kijun Kim
-
Patent number: 9407760Abstract: Methods and apparatuses are provided wherein performance of lines configured for discontinuous operation is monitored on symbols transmitted using a base configuration in which the lines are active. On the basis of the monitored performance, performance may be calculated for other configurations in which one or more of the lines are discontinued.Type: GrantFiled: November 6, 2014Date of Patent: August 2, 2016Assignee: Lantiq Beteiligungs-GmbH & Co.KGInventors: Vladimir Oksman, Rainer Strobel