WO2021087533A3 - Apparatus and method of configurable crest factor reduction - Google Patents
Apparatus and method of configurable crest factor reduction Download PDFInfo
- Publication number
- WO2021087533A3 WO2021087533A3 PCT/US2021/021397 US2021021397W WO2021087533A3 WO 2021087533 A3 WO2021087533 A3 WO 2021087533A3 US 2021021397 W US2021021397 W US 2021021397W WO 2021087533 A3 WO2021087533 A3 WO 2021087533A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- crest factor
- signal
- carrier
- baseband chip
- configurable
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
- H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2614—Peak power aspects
- H04L27/2623—Reduction thereof by clipping
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/435—A peak detection being used in a signal measuring circuit in a controlling circuit of an amplifier
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Power Engineering (AREA)
- Transmitters (AREA)
- Measurement Of Current Or Voltage (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
According to one aspect of the present disclosure, a baseband chip is disclosed. The baseband chip may include a multi-carrier peak detection circuit configured to identify a peak amplitude of a combined signal that includes a first signal associated with a first component carrier (CC) and a second signal associated with a second CC. The multi-carrier peak detection circuit may operate at a first sampling rate that is a function of carrier aggregation (CA) bandwidth. The baseband chip may also include at least one crest factor reduction (CFR) circuit configured to reduce, based at least in part on the peak amplitude identified for the combined signal, a first crest factor associated with the first signal and a second crest factor associated with the second signal. The at least one CFR circuit operating at a second sampling rate that is a function of CC bandwidth.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202180013208.5A CN115244846A (en) | 2020-03-24 | 2021-03-08 | Configurable crest factor reduction apparatus and method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US202062993853P | 2020-03-24 | 2020-03-24 | |
US62/993,853 | 2020-03-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2021087533A2 WO2021087533A2 (en) | 2021-05-06 |
WO2021087533A3 true WO2021087533A3 (en) | 2021-07-08 |
Family
ID=75716528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2021/021397 WO2021087533A2 (en) | 2020-03-24 | 2021-03-08 | Apparatus and method of configurable crest factor reduction |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN115244846A (en) |
WO (1) | WO2021087533A2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20230000189A (en) * | 2021-06-24 | 2023-01-02 | 주식회사 쏠리드 | Method and devices for CFR processing |
WO2023003542A1 (en) * | 2021-07-20 | 2023-01-26 | Zeku, Inc. | Hybrid crest factor reduction |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100027690A1 (en) * | 2008-07-30 | 2010-02-04 | Motorola, Inc. | Apparatus and method for generating a multicarrier communication signal having a reduced crest factor |
US20140362950A1 (en) * | 2013-06-05 | 2014-12-11 | Telefonaktiebolaget L M Ericsson (Publ) | Crest factor reduction of inter-band carrier aggregated signals |
US20160028574A1 (en) * | 2013-03-18 | 2016-01-28 | Telefonaktiebolaget L M Ericsson (Publ) | Device of crest factor reduction |
US9313078B1 (en) * | 2015-04-09 | 2016-04-12 | Xilinx, Inc. | Pulse cancellation crest factor reduction with a low sampling rate |
US20170033964A1 (en) * | 2015-07-30 | 2017-02-02 | Futurewei Technologies, Inc. | Reducing crest factors |
US20170187560A1 (en) * | 2015-12-29 | 2017-06-29 | Blue Danube Systems, Inc. | Multi-beam crest factor reduction |
US20190207794A1 (en) * | 2013-11-26 | 2019-07-04 | Plusn, Llc | System and method for controlling combined radio signals |
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2021
- 2021-03-08 CN CN202180013208.5A patent/CN115244846A/en active Pending
- 2021-03-08 WO PCT/US2021/021397 patent/WO2021087533A2/en active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100027690A1 (en) * | 2008-07-30 | 2010-02-04 | Motorola, Inc. | Apparatus and method for generating a multicarrier communication signal having a reduced crest factor |
US20160028574A1 (en) * | 2013-03-18 | 2016-01-28 | Telefonaktiebolaget L M Ericsson (Publ) | Device of crest factor reduction |
US20140362950A1 (en) * | 2013-06-05 | 2014-12-11 | Telefonaktiebolaget L M Ericsson (Publ) | Crest factor reduction of inter-band carrier aggregated signals |
US20190207794A1 (en) * | 2013-11-26 | 2019-07-04 | Plusn, Llc | System and method for controlling combined radio signals |
US9313078B1 (en) * | 2015-04-09 | 2016-04-12 | Xilinx, Inc. | Pulse cancellation crest factor reduction with a low sampling rate |
US20170033964A1 (en) * | 2015-07-30 | 2017-02-02 | Futurewei Technologies, Inc. | Reducing crest factors |
US20170187560A1 (en) * | 2015-12-29 | 2017-06-29 | Blue Danube Systems, Inc. | Multi-beam crest factor reduction |
Also Published As
Publication number | Publication date |
---|---|
CN115244846A (en) | 2022-10-25 |
WO2021087533A2 (en) | 2021-05-06 |
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