WO2021087533A3 - Apparatus and method of configurable crest factor reduction - Google Patents

Apparatus and method of configurable crest factor reduction Download PDF

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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
Application number
PCT/US2021/021397
Other languages
French (fr)
Other versions
WO2021087533A2 (en
Inventor
Huei Yuan Shih
Original Assignee
Zeku, 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 Zeku, Inc. filed Critical Zeku, Inc.
Priority to CN202180013208.5A priority Critical patent/CN115244846A/en
Publication of WO2021087533A2 publication Critical patent/WO2021087533A2/en
Publication of WO2021087533A3 publication Critical patent/WO2021087533A3/en

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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)
  • Mobile Radio Communication Systems (AREA)
  • Transmitters (AREA)
  • Measurement Of Current Or Voltage (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.
PCT/US2021/021397 2020-03-24 2021-03-08 Apparatus and method of configurable crest factor reduction WO2021087533A2 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (7)

* Cited by examiner, † Cited by third party
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
WO2021087533A2 (en) 2021-05-06
CN115244846A (en) 2022-10-25

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