JP2017511007A5 - - Google Patents
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- Publication number
- JP2017511007A5 JP2017511007A5 JP2016541146A JP2016541146A JP2017511007A5 JP 2017511007 A5 JP2017511007 A5 JP 2017511007A5 JP 2016541146 A JP2016541146 A JP 2016541146A JP 2016541146 A JP2016541146 A JP 2016541146A JP 2017511007 A5 JP2017511007 A5 JP 2017511007A5
- Authority
- JP
- Japan
- Prior art keywords
- imbalance
- frequency
- phase
- branch
- quadrature
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/134,813 US9641126B2 (en) | 2013-12-19 | 2013-12-19 | Systems and methods for I-Q imbalance calibration |
| US14/134,813 | 2013-12-19 | ||
| PCT/US2014/069950 WO2015094947A1 (en) | 2013-12-19 | 2014-12-12 | Systems and methods for i-q imbalance calibration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2017511007A JP2017511007A (ja) | 2017-04-13 |
| JP2017511007A5 true JP2017511007A5 (enExample) | 2017-12-28 |
Family
ID=52355192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2016541146A Pending JP2017511007A (ja) | 2013-12-19 | 2014-12-12 | Ｉ−ｑ不均衡較正のためのシステムおよび方法 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9641126B2 (enExample) |
| EP (1) | EP3084991A1 (enExample) |
| JP (1) | JP2017511007A (enExample) |
| KR (1) | KR20160101032A (enExample) |
| CN (1) | CN105830371A (enExample) |
| WO (1) | WO2015094947A1 (enExample) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2537800B (en) * | 2014-12-22 | 2018-05-30 | Imagination Tech Ltd | IQ imbalance estimator |
| US9882613B2 (en) * | 2015-06-01 | 2018-01-30 | Corning Optical Communications Wireless Ltd | Determining actual loop gain in a distributed antenna system (DAS) |
| US9531528B1 (en) | 2015-09-23 | 2016-12-27 | Qualcomm Incorporated | Multi-chip TX beamforming for per-packet switching without LO phase alignment circuitry |
| KR102410157B1 (ko) * | 2016-03-17 | 2022-06-17 | 한국전자통신연구원 | Los 환경에서 mimo 사용하여 전송량 증대가 가능한 무선 통신 장치 및 그 방법 |
| KR102043667B1 (ko) * | 2016-11-16 | 2019-11-12 | 한국전자통신연구원 | 광대역 수동상호변조왜곡 신호 측정 장치 및 방법 |
| CN107948117B (zh) * | 2017-12-07 | 2024-11-19 | 西安华讯天基通信技术有限公司 | 一种收发端联合正交调制校准的装置及其方法 |
| KR102001739B1 (ko) * | 2017-12-20 | 2019-07-18 | 국립 중산 과학 기술 연구원 | I/q 불균형 교정 장치, 해당 교정 장치를 이용한 방법 및 송신기 시스템 |
| KR102308438B1 (ko) | 2019-07-18 | 2021-10-05 | 삼성전자 주식회사 | 밀리미터파 통신 시스템에서 i/q 불균형을 교정하기 위한 송수신기를 포함하는 전자 장치 및 그의 동작 방법 |
| US11140633B2 (en) * | 2020-02-10 | 2021-10-05 | Samsung Electronics Co., Ltd. | Method and apparatus for loopback gain step calibration on RF chain with phase shifter |
| KR102819297B1 (ko) * | 2022-03-29 | 2025-06-12 | 한국전자통신연구원 | Iq 불균형 보상 방법 및 장치 |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5852630A (en) * | 1997-07-17 | 1998-12-22 | Globespan Semiconductor, Inc. | Method and apparatus for a RADSL transceiver warm start activation procedure with precoding |
| CA2352398C (en) * | 2000-07-06 | 2005-07-26 | Unique Broadband Systems, Inc. | Low phase noise frequency converter |
| US6931343B2 (en) * | 2003-09-19 | 2005-08-16 | Globespanvirata, Incorporated | On-signal quadrature modulator calibration |
| US7280619B2 (en) * | 2003-12-23 | 2007-10-09 | Intel Corporation | Method and apparatus for compensating I/Q imbalance in receivers |
| US7616929B2 (en) * | 2005-04-04 | 2009-11-10 | Broadcom Corporation | Cross-core calibration in a multi-radio system |
| US20070025474A1 (en) * | 2005-07-29 | 2007-02-01 | Broadcom Corporation, A California Corporation | Receiver IQ imbalance calibration |
| US8654885B2 (en) * | 2006-06-06 | 2014-02-18 | Qualcomm Incorporated | Fast in-phase and quadrature imbalance calibration |
| US8374297B2 (en) * | 2008-09-15 | 2013-02-12 | Intel Corporation | Circuit, controller and methods for dynamic estimation and cancellation of phase and gain imbalances in quadrature signal paths of a receiver |
| US8295845B1 (en) * | 2008-12-04 | 2012-10-23 | Qualcomm Atheros, Inc. | Transceiver I/Q mismatch calibration |
| JP5189483B2 (ja) * | 2008-12-26 | 2013-04-24 | 古野電気株式会社 | 無線装置 |
| US8233524B2 (en) * | 2009-03-12 | 2012-07-31 | Freescale Semiconductor, Inc. | Radio transmitter IQ imbalance measurement and correction methods and apparatus |
| US8379767B2 (en) | 2009-09-23 | 2013-02-19 | Intel Corporation | Methods and systems to compensate IQ imbalance in zero-IF tuners |
| US8630598B2 (en) * | 2010-02-25 | 2014-01-14 | Qualcomm Incorporated | Methods and apparatus for measuring and/or using transmitter and/or receiver IQ imbalance information and/or DC offset information |
| US8565352B2 (en) | 2010-05-03 | 2013-10-22 | Telefonaktiebolaget L M Ericsson (Publ) | Digital IQ imbalance compensation for dual-carrier double conversion receiver |
| US8711905B2 (en) | 2010-05-27 | 2014-04-29 | Intel Corporation | Calibration of quadrature imbalances using wideband signals |
| CN102377700B (zh) * | 2010-08-18 | 2014-06-11 | 上海明波通信技术有限公司 | 估计发送端和接收端i/q不平衡的方法 |
| JP5361927B2 (ja) * | 2011-03-14 | 2013-12-04 | 株式会社東芝 | 無線受信装置 |
| US20120300818A1 (en) * | 2011-03-31 | 2012-11-29 | Qualcomm Incorporated | Self-calibration i/q imbalance reduction |
| US9479203B2 (en) * | 2011-04-14 | 2016-10-25 | Mediatek Inc. | Transceiver capable of IQ mismatch compensation on the fly and method thereof |
| US8644427B2 (en) | 2011-08-10 | 2014-02-04 | Sigear Europe Sarl | Radio frequency receiver with dual band reception and dual ADC |
| US8861620B2 (en) | 2011-10-14 | 2014-10-14 | SiTune Corporation | Full band cable receiver |
| US9106502B2 (en) * | 2012-11-19 | 2015-08-11 | Intel Corporation | Apparatus, system and method of in-phase/quadrature (I/Q) imbalance compensation |
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2013
- 2013-12-19 US US14/134,813 patent/US9641126B2/en not_active Expired - Fee Related
-
2014
- 2014-12-12 CN CN201480067812.6A patent/CN105830371A/zh active Pending
- 2014-12-12 JP JP2016541146A patent/JP2017511007A/ja active Pending
- 2014-12-12 WO PCT/US2014/069950 patent/WO2015094947A1/en not_active Ceased
- 2014-12-12 EP EP14827914.4A patent/EP3084991A1/en not_active Withdrawn
- 2014-12-12 KR KR1020167018783A patent/KR20160101032A/ko not_active Withdrawn