SG11202007059UA - Radio frequency loopback for transceivers - Google Patents
Radio frequency loopback for transceiversInfo
- 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
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)
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 (3) | US11258472B2 (ko) |
EP (2) | EP4142167A1 (ko) |
KR (2) | KR20230135154A (ko) |
CN (2) | CN114900204A (ko) |
AU (2) | AU2019215122B2 (ko) |
BR (1) | BR112020015392A2 (ko) |
CA (1) | CA3089340A1 (ko) |
ES (1) | ES2928772T3 (ko) |
SG (1) | SG11202007059UA (ko) |
WO (1) | WO2019152793A1 (ko) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018103897A1 (en) | 2016-12-09 | 2018-06-14 | Telefonaktiebolaget L M Ericsson (Publ) | Improved antenna arrangement for distributed massive mimo |
WO2019076513A1 (en) | 2017-10-17 | 2019-04-25 | Telefonaktiebolaget Lm Ericsson (Publ) | DISTRIBUTED MIMO SYNCHRONIZATION |
EP3714551A1 (en) | 2017-11-21 | 2020-09-30 | Telefonaktiebolaget LM Ericsson (publ) | Improved 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 |
CN115136502A (zh) * | 2020-02-10 | 2022-09-30 | 瑞典爱立信有限公司 | 无线电通信的方法和装置 |
WO2021160571A1 (en) * | 2020-02-10 | 2021-08-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Dielectric waveguide signal transfer function compensation |
CN114337714A (zh) * | 2020-09-29 | 2022-04-12 | 中兴通讯股份有限公司 | 通讯设备、控制方法、基站及计算机可读存储介质 |
CN112653502B (zh) * | 2020-12-17 | 2022-11-04 | 东方红卫星移动通信有限公司 | 一种基于频率协调的便携终端射频通道 |
US11848712B2 (en) * | 2022-04-22 | 2023-12-19 | Dell Products, L.P. | Calibration and test of radios spanning digital and analog domains |
CN114844513A (zh) * | 2022-04-28 | 2022-08-02 | 上海阖煦微波技术有限公司 | 一种射频电缆实现7-8GHz多频段波导双工器环回幅度可调设计 |
Family Cites Families (27)
Publication number | Priority date | Publication date | Assignee | Title |
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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 (ko) * | 2004-08-03 | 2006-03-15 | 한국전자통신연구원 | 유도성 아이리스를 갖는 전계면 결합망 구조의 도파관다이플렉서 |
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 (zh) * | 2010-04-23 | 2012-03-21 | 华为技术有限公司 | 射频信号环回方法及室外单元 |
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 |
WO2016140660A1 (en) | 2015-03-04 | 2016-09-09 | Environmental Financial Products, LLC | Computer network systems for accurate market based benchmark estimates |
US8995932B2 (en) * | 2013-01-04 | 2015-03-31 | Telefonaktiebolaget L M Ericsson (Publ) | Transmitter noise suppression in receiver |
US9787415B2 (en) * | 2013-03-14 | 2017-10-10 | Analog Devices, Inc. | Transmitter LO leakage calibration scheme using loopback circuitry |
US9136887B2 (en) | 2014-02-20 | 2015-09-15 | Texas Instruments Incorporated | Subtracting linear impairments for non-linear impairment digital pre-distortion error signal |
DE102014104372A1 (de) * | 2014-03-28 | 2015-10-01 | Intel IP Corporation | Eine Vorrichtung und ein Verfahren zum Verstärken eines Sendesignals |
US9584175B2 (en) | 2014-12-16 | 2017-02-28 | Nxp Usa, Inc. | Radio frequency transceiver loopback testing |
US10079702B2 (en) * | 2015-07-06 | 2018-09-18 | Mediatek Singapore Pte. Ltd. | Front-end module and coupling compensation for closed-loop digital pre-distortion system |
US10665942B2 (en) * | 2015-10-16 | 2020-05-26 | At&T Intellectual Property I, L.P. | Method and apparatus for adjusting wireless communications |
CN106713195B (zh) * | 2015-11-12 | 2020-06-12 | 中兴通讯股份有限公司 | 微波数字预失真处理反馈电路、闭环电路及收、发信机 |
US10277381B2 (en) * | 2016-01-09 | 2019-04-30 | Huawei Technologies Co., Ltd. | Receiver path distortion mitigation using adaptive filter feedback |
-
2019
- 2019-02-01 EP EP22190442.8A patent/EP4142167A1/en active Pending
- 2019-02-01 US US16/960,823 patent/US11258472B2/en active Active
- 2019-02-01 CN CN202210569939.4A patent/CN114900204A/zh active Pending
- 2019-02-01 KR KR1020237030619A patent/KR20230135154A/ko not_active Application Discontinuation
- 2019-02-01 AU AU2019215122A patent/AU2019215122B2/en active Active
- 2019-02-01 CA CA3089340A patent/CA3089340A1/en active Pending
- 2019-02-01 EP EP19705683.1A patent/EP3725001B1/en active Active
- 2019-02-01 SG SG11202007059UA patent/SG11202007059UA/en unknown
- 2019-02-01 KR KR1020207023234A patent/KR102577743B1/ko active IP Right Grant
- 2019-02-01 WO PCT/US2019/016273 patent/WO2019152793A1/en unknown
- 2019-02-01 ES ES19705683T patent/ES2928772T3/es active Active
- 2019-02-01 CN CN201980010438.9A patent/CN111684730B/zh active Active
- 2019-02-01 BR BR112020015392-3A patent/BR112020015392A2/pt unknown
-
2022
- 2022-01-05 US US17/569,354 patent/US11855667B2/en active Active
- 2022-11-04 AU AU2022263565A patent/AU2022263565B2/en active Active
-
2023
- 2023-11-22 US US18/518,269 patent/US20240243767A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
US11855667B2 (en) | 2023-12-26 |
KR20230135154A (ko) | 2023-09-22 |
AU2019215122B2 (en) | 2022-08-04 |
AU2022263565B2 (en) | 2024-05-30 |
US20220131562A1 (en) | 2022-04-28 |
BR112020015392A2 (pt) | 2021-02-17 |
US11258472B2 (en) | 2022-02-22 |
KR20200116470A (ko) | 2020-10-12 |
US20200358467A1 (en) | 2020-11-12 |
AU2022263565A1 (en) | 2022-12-08 |
KR102577743B1 (ko) | 2023-09-12 |
CN111684730A (zh) | 2020-09-18 |
AU2019215122A1 (en) | 2020-07-30 |
WO2019152793A1 (en) | 2019-08-08 |
ES2928772T3 (es) | 2022-11-22 |
CN111684730B (zh) | 2022-06-28 |
EP4142167A1 (en) | 2023-03-01 |
EP3725001A1 (en) | 2020-10-21 |
CA3089340A1 (en) | 2019-08-08 |
EP3725001B1 (en) | 2022-09-14 |
US20240243767A1 (en) | 2024-07-18 |
CN114900204A (zh) | 2022-08-12 |
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