公开(公告)号：US09742547B2

公开(公告)日：2017-08-22

申请号：US14926496

申请日：2015-10-29

Applicant: ISCO INTERNATIONAL, LLC

Inventor： Mikhail Galeev ,  Amr Abdelmonem ,  Dariusz Seskiewicz ,  Zhigang Wang

IPC: H04W4/00 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12 ,  H04W28/02 ,  H04W72/08 ,  H04B1/709 ,  H04B1/7103 ,  H04B15/00 ,  H04W24/08 ,  H04W64/00 ,  H04B17/00 ,  H04W52/04 ,  H04B1/10 ,  H04B1/71 ,  H04B17/26 ,  H04B17/345 ,  H04W28/04 ,  H04L12/24 ,  H04W4/02 ,  H04W24/10 ,  H04W40/16 ,  H04W16/28 ,  H04W24/02 ,  H04W52/24 ,  H04B17/21 ,  H04B17/373 ,  H04B7/26 ,  H04J11/00

CPC classification number: H04L5/0073 ,  H04B1/1036 ,  H04B1/709 ,  H04B1/71 ,  H04B1/7103 ,  H04B7/2634 ,  H04B15/00 ,  H04B17/00 ,  H04B17/21 ,  H04B17/26 ,  H04B17/327 ,  H04B17/345 ,  H04B17/373 ,  H04B2201/709709 ,  H04B2201/709745 ,  H04J11/0066 ,  H04L5/0007 ,  H04L5/0026 ,  H04L5/0032 ,  H04L5/006 ,  H04L41/069 ,  H04W4/02 ,  H04W4/023 ,  H04W16/28 ,  H04W24/02 ,  H04W24/08 ,  H04W24/10 ,  H04W28/0236 ,  H04W28/04 ,  H04W40/16 ,  H04W52/04 ,  H04W52/14 ,  H04W52/243 ,  H04W64/00 ,  H04W64/006 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/0486 ,  H04W72/082 ,  H04W72/085 ,  H04W72/1226 ,  H04W72/1231

Abstract: Aspects of the subject disclosure may include, for example, obtaining a schedule of transmission segments in an uplink of a communication system, determining a threshold for detecting signal interference in at least one transmission segment of a plurality of transmission segments according to the schedule of transmission segments in the uplink, and detecting signal interference in the at least one transmission segment of the plurality of transmission segments according to the threshold.

公开(公告)号：US09742451B2

公开(公告)日：2017-08-22

申请号：US14673136

申请日：2015-03-30

Applicant: Avago Technologies General IP (Singapore) Pte. Ltd.

Inventor： Andriy Yatsenko ,  Hongya Xu ,  Lueder Elbrecht ,  Martin Handtmann

IPC: H04B1/10 ,  H03H7/46 ,  H03H9/60 ,  H03H9/64 ,  H03H9/70 ,  H03H9/72 ,  H03H9/00

CPC classification number: H04B1/1036 ,  H03H7/463 ,  H03H9/0004 ,  H03H9/605 ,  H03H9/6483 ,  H03H9/706 ,  H03H9/725

Abstract: A multiplexer device includes at least one acoustic band pass filter connected to a common port, and a hybrid LC/acoustic filter connected to the common port in parallel with the at least one acoustic band pass filter. Each acoustic band pass filter has a corresponding passband and includes multiple acoustic resonators. The hybrid LC/acoustic filter includes at least one acoustic resonator, and has at least one capacitor replaced by a corresponding at least one acoustic resonator, respectively. Each of the at least one acoustic resonator included in the hybrid LC/acoustic filter provides a stopband response when operating in a corresponding acoustic frequency range, and acts as a capacitor when operating in a corresponding non-acoustic frequency range.

公开(公告)号：US20170230921A1

公开(公告)日：2017-08-10

申请号：US15503073

申请日：2015-08-19

Applicant: NEC Space Technologies, Ltd.

Inventor： Satoko KAWAKAMI ,  Susumu KUMAGAI

IPC: H04W52/52 ,  H04B1/10 ,  H04B7/26 ,  H03G3/30 ,  H04B17/318

CPC classification number: H04W52/52 ,  H03G3/3036 ,  H03G3/3052 ,  H03G3/3068 ,  H04B1/10 ,  H04B1/1036 ,  H04B1/16 ,  H04B7/2628 ,  H04B17/318

Abstract: This automatic gain control circuit is provided with a variable gain amplifier for amplifying a received signal, has a small circuit size, and makes it possible to reduce the effect of superimposed external noise input within the frequency bandwidth of a received signal. The automatic gain control circuit supplies the output of the variable gain amplifier to an analog/digital converter and comprises: a frequency selection circuit that is connected to the output of the analog/digital converter and that selects a signal within the frequency bandwidth of a received signal, said signal having a narrower bandwidth than the frequency bandwidth; and a control signal generation circuit that generates a control signal for the variable gain amplifier on the basis of the strength of the signal selected by the frequency selection circuit.

公开(公告)号：US20170222733A1

公开(公告)日：2017-08-03

申请号：US15491459

申请日：2017-04-19

Applicant: LGS INNOVATIONS LLC

Inventor： BENJAMIN JOSEPH BAKER ,  ALAN SCOTT BRANNON ,  RILEY NELSON PACK

IPC: H04B15/00 ,  H04L5/14 ,  H04B1/10 ,  H04B1/00 ,  H04B1/04

CPC classification number: H04L5/1461 ,  H03F3/24 ,  H04B1/0003 ,  H04B1/0042 ,  H04B1/0475 ,  H04B1/10 ,  H04B1/1036 ,  H04B1/401 ,  H04B1/525 ,  H04B1/713 ,  H04B1/715 ,  H04B15/00 ,  H04B15/02 ,  H04B2001/0408 ,  H04L5/14 ,  H04L25/0212 ,  H04L25/025

Abstract: The present application describes systems and methods of performing self-interference cancellation. According to an embodiment, the method sends a transmit signal through a circulator to substantially isolate the transmit signal from a receiver, with at least a portion of the transmit signal entering a receive path towards the receiver. The method also generates a reflected signal from an antenna. The reflected signal is at substantially less power than an incident power to the antenna. The reflected signal includes a transmitter carrier signal and a transmitter noise. The method also routes a received signal from the antenna to the receiver, and routes the reflected signal through a phase shifter in the receive path. Further, the method combines the reflected, phase shifted transmitter noise with the received signal in the receive path to cancel the portion of the transmit signal that entered the receive path towards the receiver.

公开(公告)号：US20170222673A1

公开(公告)日：2017-08-03

申请号：US15012347

申请日：2016-02-01

Applicant: Apple Inc.

Inventor： Mohammad Reza Ghajar ,  Huanyu Chen ,  Robert S. Sorensen

IPC: H04B1/10 ,  H04B1/18

CPC classification number: H04B1/1036 ,  H04B1/123 ,  H04B1/18 ,  H04B2001/1063

Abstract: An electronic device includes an antenna configured to receive a wireless transmission. The wireless transmission includes noise and data to be received. The electronic device includes a signal splitter that splits the wireless transmission into a first signal and a second signal. The electronic device includes a filter configured to filter the data to be received in the first signal. Furthermore, the electronic device includes merging circuitry configured to subtract the first signal from the second signal to reduce the noise in the second signal.

公开(公告)号：US09706559B2

公开(公告)日：2017-07-11

申请号：US15234633

申请日：2016-08-11

Applicant: ISCO International, LLC

Inventor： Charles E. Jagger ,  Mark N. Willetts ,  Micolino Tobia

IPC: H04W72/08 ,  H04B1/10 ,  H04B7/005 ,  H04W24/02 ,  H04W24/04 ,  H04B1/71 ,  H04B15/00 ,  H04W72/04 ,  H04W24/00 ,  H04W28/04 ,  H04B1/7103 ,  H04W24/08 ,  H04W28/20 ,  H04W88/02 ,  H04W88/08 ,  H04W52/24 ,  H04W24/10

CPC classification number: H04W72/082 ,  H04B1/10 ,  H04B1/1036 ,  H04B1/71 ,  H04B1/7103 ,  H04B7/005 ,  H04B15/00 ,  H04B2001/1063 ,  H04B2201/709709 ,  H04B2201/709718 ,  H04W24/00 ,  H04W24/02 ,  H04W24/04 ,  H04W24/08 ,  H04W24/10 ,  H04W28/04 ,  H04W28/16 ,  H04W28/20 ,  H04W52/243 ,  H04W52/245 ,  H04W72/0453 ,  H04W72/085 ,  H04W88/02 ,  H04W88/08

Abstract: A system that incorporates teachings of the subject disclosure may include, for example, a process for measuring by a system having a processor, within a wide frequency band, signal power levels received in specified narrow frequency bands, determining an average composite wideband power level that excludes a portion of the power levels of the received signals, detecting interference according to an adaptive threshold based on the average composite wideband power level, and generating an interference report based on the detecting of the interference. Other embodiments are disclosed.

公开(公告)号：US09698842B2

公开(公告)日：2017-07-04

申请号：US14853835

申请日：2015-09-14

Applicant: AceAxis Limited

Inventor： Simon Gale ,  David Bevan ,  Fiona Wilson

IPC: H04B1/00 ,  H04B1/10 ,  H04B1/12 ,  H04B7/00

CPC classification number: H04B1/1036 ,  H04B1/123

Abstract: Interference (I3) in a waveform received at a device in a wireless network is processed, the processing, for example, being used to detect and/or reduce the interference. The interference comprises non-linear products of at least a first signal. On the basis of at least the first signal, a plurality of interference product streams are generated, each stream comprising a stream of time samples of a simulated non-linear product of at least the first signal. At least two of the plurality of interference product streams are processed to reduce a degree of correlation between said at least two interference product streams thereby producing at least two processed interference product streams, which are correlated with the received waveform to produce a plurality of respective correlation values. The interference is processed in dependence on the plurality of respective correlation values.

公开(公告)号：US20170188374A1

公开(公告)日：2017-06-29

申请号：US15458514

申请日：2017-03-14

Applicant: ISCO INTERNATIONAL, LLC

Inventor： Mikhail GALEEV ,  Jorge SEOANE

IPC: H04W72/08 ,  H04W24/02 ,  H04B17/345 ,  H04W72/04

CPC classification number: H04W72/082 ,  H04B1/1036 ,  H04B1/709 ,  H04B1/71 ,  H04B1/7103 ,  H04B7/2634 ,  H04B15/00 ,  H04B17/00 ,  H04B17/21 ,  H04B17/26 ,  H04B17/327 ,  H04B17/345 ,  H04B17/373 ,  H04B2201/709709 ,  H04B2201/709745 ,  H04J11/0066 ,  H04L5/0007 ,  H04L5/0026 ,  H04L5/0032 ,  H04L5/006 ,  H04L5/0073 ,  H04L41/069 ,  H04W4/02 ,  H04W4/023 ,  H04W4/029 ,  H04W16/28 ,  H04W24/02 ,  H04W24/08 ,  H04W24/10 ,  H04W28/0236 ,  H04W28/04 ,  H04W40/16 ,  H04W52/04 ,  H04W52/14 ,  H04W52/243 ,  H04W64/00 ,  H04W64/006 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/0486 ,  H04W72/085 ,  H04W72/1226 ,  H04W72/1231

Abstract: A system that incorporates the subject disclosure may perform, for example, a method for detecting signal interference in a first segment of a plurality of segments of a radio frequency spectrum of a wireless communication system, determining according to the signal interference a measure of quality of service of the first segment for transmitting voice traffic, comparing the measure of quality of service to a desired measure of quality of service measure for voice traffic, determining from the comparison that the first segment is not suitable for voice traffic, and notifying a system that the first segment is not suitable for voice traffic. Other embodiments are disclosed.

公开(公告)号：US20170187414A1

公开(公告)日：2017-06-29

申请号：US15433928

申请日：2017-02-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： TIMOTHY J. TALTY ,  Cynthia D. Baringer ,  Mohiuddin Ahmed ,  James Chingwei Li ,  Yen-Cheng Kuan ,  Hsuanyu Pan ,  Emilio A. Sovero

IPC: H04B1/40 ,  H04B1/3822

CPC classification number: H04B1/0475 ,  H03F3/24 ,  H03M1/0673 ,  H03M1/365 ,  H03M1/662 ,  H03M3/408 ,  H03M3/424 ,  H04B1/0007 ,  H04B1/1036 ,  H04B1/3822 ,  H04B1/40 ,  H04B2001/0408 ,  H04B2001/0425 ,  H04B2001/1063 ,  H04L1/0071

Abstract: A cellular radio architecture that includes a receiver module having a delta-sigma modulator that includes a plurality of gm cells configured in stages, where each stage includes at least two gm cells and an LC filter circuit. The gm cells in each stage can be controlled to be active or inactive to convert, for example, the modulator from a fourth order modulator to a second order modulator to reduce power dissipation. Further, the gm cells can be controlled to optimize a dynamic range of the modulator and to redirect current from inactive cells to active cells in order to optimize power consumption.

公开(公告)号：US09692468B2

公开(公告)日：2017-06-27

申请号：US14937917

申请日：2015-11-11

Applicant: SMARTSKY NETWORKS LLC

Inventor： Elbert Stanford Eskridge, Jr. ,  Gerard James Hayes ,  Koichiro Takamizawa ,  Joe Klein

IPC: H04B1/10 ,  H04W64/00 ,  H04W16/14

CPC classification number: H04B1/1036 ,  H04B1/126 ,  H04B7/18506 ,  H04B2001/1063 ,  H04W16/14 ,  H04W36/20 ,  H04W36/22 ,  H04W36/32 ,  H04W64/006 ,  H04W84/005 ,  H04W84/06

Abstract: A method of enhancing wireless communication performance includes receiving information indicative of a local interferer where the local interferer is identified based on dynamic position information indicative of a position of at least one mobile communication node, performing noise cancellation relative to a received signal by removing an interference signal associated with the local interferer to generate a scrubbed signal, and providing the scrubbed signal for additional signal processing.