SG11202007059UA - Radio frequency loopback for transceivers - Google Patents

Radio frequency loopback for transceivers

Info

Publication number
SG11202007059UA
SG11202007059UA SG11202007059UA SG11202007059UA SG11202007059UA SG 11202007059U A SG11202007059U A SG 11202007059UA SG 11202007059U A SG11202007059U A SG 11202007059UA SG 11202007059U A SG11202007059U A SG 11202007059UA SG 11202007059U A SG11202007059U A SG 11202007059UA
Authority
SG
Singapore
Prior art keywords
transceivers
radio frequency
frequency loopback
loopback
radio
Prior art date
Application number
SG11202007059UA
Inventor
Kenneth Buer
Ramanamurthy Darapu
Martin Gimersky
David Pettit
Bill Agar
Original Assignee
Viasat Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Viasat Inc filed Critical Viasat Inc
Publication of SG11202007059UA publication Critical patent/SG11202007059UA/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/50—Circuits using different frequencies for the two directions of communication
    • H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H04B1/525—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa with means for reducing leakage of transmitter signal into the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0475—Circuits with means for limiting noise, interference or distortion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/50—Circuits using different frequencies for the two directions of communication
    • H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/12—Neutralising, balancing, or compensation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/401—Circuits for selecting or indicating operating mode
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/44—Transmit/receive switching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/10—Monitoring; Testing of transmitters
    • H04B17/11—Monitoring; Testing of transmitters for calibration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/10—Monitoring; Testing of transmitters
    • H04B17/11—Monitoring; Testing of transmitters for calibration
    • H04B17/14—Monitoring; Testing of transmitters for calibration of the whole transmission and reception path, e.g. self-test loop-back
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/10—Monitoring; Testing of transmitters
    • H04B17/15—Performance testing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/29—Performance testing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Transceivers (AREA)
SG11202007059UA 2018-02-02 2019-02-01 Radio frequency loopback for transceivers SG11202007059UA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201862625443P 2018-02-02 2018-02-02
PCT/US2019/016273 WO2019152793A1 (en) 2018-02-02 2019-02-01 Radio frequency loopback for transceivers

Publications (1)

Publication Number Publication Date
SG11202007059UA true SG11202007059UA (en) 2020-08-28

Family

ID=65441126

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11202007059UA SG11202007059UA (en) 2018-02-02 2019-02-01 Radio frequency loopback for transceivers

Country Status (10)

Country Link
US (2) US11258472B2 (en)
EP (2) EP4142167A1 (en)
KR (2) KR20230135154A (en)
CN (2) CN114900204A (en)
AU (2) AU2019215122B2 (en)
BR (1) BR112020015392A2 (en)
CA (1) CA3089340A1 (en)
ES (1) ES2928772T3 (en)
SG (1) SG11202007059UA (en)
WO (1) WO2019152793A1 (en)

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CN110463064B (en) 2016-12-09 2023-05-05 瑞典爱立信有限公司 Improved antenna arrangement for distributed massive MIMO
WO2019076513A1 (en) 2017-10-17 2019-04-25 Telefonaktiebolaget Lm Ericsson (Publ) Distributed mimo synchronization
US11616540B2 (en) 2017-11-21 2023-03-28 Telefonaktiebolaget Lm Ericsson (Publ) Antenna arrangement for distributed massive MIMO
US11381328B2 (en) * 2019-09-24 2022-07-05 Cypress Semiconductor Corporation Detection of variation in load impedance of wireless communications devices
WO2021160571A1 (en) * 2020-02-10 2021-08-19 Telefonaktiebolaget Lm Ericsson (Publ) Dielectric waveguide signal transfer function compensation
CN114337714A (en) * 2020-09-29 2022-04-12 中兴通讯股份有限公司 Communication apparatus, control method, base station, and computer-readable storage medium
CN112653502B (en) * 2020-12-17 2022-11-04 东方红卫星移动通信有限公司 Portable terminal radio frequency channel based on frequency coordination
US11848712B2 (en) * 2022-04-22 2023-12-19 Dell Products, L.P. Calibration and test of radios spanning digital and analog domains
CN114844513A (en) * 2022-04-28 2022-08-02 上海阖煦微波技术有限公司 Loopback amplitude adjustable design for realizing 7-8GHz multi-band waveguide duplexer by radio frequency cable

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US6088570A (en) * 1998-11-24 2000-07-11 Airnet Communications Corporation Method and apparatus employing delay elements in multiple diversity paths of a wireless system repeater translator to allow for selective diversity and automatic level control in a time-division multiple access system
US7555263B1 (en) 1999-10-21 2009-06-30 Broadcom Corporation Adaptive radio transceiver
TW200501611A (en) 2003-03-12 2005-01-01 Koninkl Philips Electronics Nv Transceiver with mismatch compensation scheme
KR100561634B1 (en) * 2004-08-03 2006-03-15 한국전자통신연구원 Waveguide diplexer of electric plane junction structure with inductive iris
GB2421373B (en) 2004-12-17 2009-01-28 Motorola Inc A transmitter a transceiver and method of controlling a transmit power therefor
US20070082617A1 (en) 2005-10-11 2007-04-12 Crestcom, Inc. Transceiver with isolation-filter compensation and method therefor
US7657232B2 (en) 2006-09-18 2010-02-02 Intel Corporation Offset-frequency loop-back calibration
US7783263B2 (en) * 2006-12-14 2010-08-24 Texas Instruments Incorporated Simplified digital predistortion in a time-domain duplexed transceiver
US8463189B2 (en) 2007-07-31 2013-06-11 Texas Instruments Incorporated Predistortion calibration and built in self testing of a radio frequency power amplifier using subharmonic mixing
US8023588B1 (en) 2008-04-08 2011-09-20 Pmc-Sierra, Inc. Adaptive predistortion of non-linear amplifiers with burst data
US8135055B2 (en) * 2008-07-30 2012-03-13 Qualcomm Incorporated I/Q calibration of transmit and receive paths in OFDM FDD communication systems
CN101834625B (en) 2010-04-23 2012-03-21 华为技术有限公司 Loop back method for radio frequency signal and outdoor unit
US8489045B2 (en) 2011-02-02 2013-07-16 Qualcomm Incorporated Method and system for adjusting transmission power
US8681840B2 (en) * 2011-04-06 2014-03-25 Samsung Electronics Co., Ltd. Transceivers having loopback switches and methods of calibrating carrier leakage thereof
US8615204B2 (en) * 2011-08-26 2013-12-24 Qualcomm Incorporated Adaptive interference cancellation for transmitter distortion calibration in multi-antenna transmitters
US8918060B2 (en) 2011-09-29 2014-12-23 St-Ericsson Sa 2G, 2.5G RF loopback arrangement for mobile device self-testing
US8908575B2 (en) * 2012-04-16 2014-12-09 Qualcomm Incorporated Methods and systems for calibrating a frequency-division duplexing transceiver
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US9787415B2 (en) * 2013-03-14 2017-10-10 Analog Devices, Inc. Transmitter LO leakage calibration scheme using loopback circuitry
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US9584175B2 (en) 2014-12-16 2017-02-28 Nxp Usa, Inc. Radio frequency transceiver loopback testing
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Also Published As

Publication number Publication date
EP4142167A1 (en) 2023-03-01
CN111684730A (en) 2020-09-18
AU2019215122B2 (en) 2022-08-04
KR20200116470A (en) 2020-10-12
KR102577743B1 (en) 2023-09-12
BR112020015392A2 (en) 2021-02-17
EP3725001B1 (en) 2022-09-14
CN111684730B (en) 2022-06-28
US20200358467A1 (en) 2020-11-12
AU2022263565B2 (en) 2024-05-30
CA3089340A1 (en) 2019-08-08
AU2022263565A1 (en) 2022-12-08
US11258472B2 (en) 2022-02-22
KR20230135154A (en) 2023-09-22
AU2019215122A1 (en) 2020-07-30
US20220131562A1 (en) 2022-04-28
ES2928772T3 (en) 2022-11-22
EP3725001A1 (en) 2020-10-21
WO2019152793A1 (en) 2019-08-08
CN114900204A (en) 2022-08-12
US11855667B2 (en) 2023-12-26

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