Notice of Pre-AIA or AIA Status
The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA .
This is in response to preliminary amendments submitted on 12/19/2024.
Priority
Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55.
Drawings
Figures fig.1a and fig.1b should be designated by a legend such as --Prior Art-- because only that which is old is illustrated. See MPEP § 608.02(g). Corrected drawings in compliance with 37 CFR 1.121(d) are required in reply to the Office action to avoid abandonment of the application. The replacement sheet(s) should be labeled “Replacement Sheet” in the page header (as per 37 CFR 1.84(c)) so as not to obstruct any portion of the drawing figures. If the changes are not accepted by the examiner, the applicant will be notified and informed of any required corrective action in the next Office action. The objection to the drawings will not be held in abeyance.
The drawings are objected to because writings of (260a-260c) in fig. 2 are not legible.
Corrected drawing sheets in compliance with 37 CFR 1.121(d) are required in reply to the Office action to avoid abandonment of the application. Any amended replacement drawing sheet should include all of the figures appearing on the immediate prior version of the sheet, even if only one figure is being amended. The figure or figure number of an amended drawing should not be labeled as “amended.” If a drawing figure is to be canceled, the appropriate figure must be removed from the replacement sheet, and where necessary, the remaining figures must be renumbered and appropriate changes made to the brief description of the several views of the drawings for consistency. Additional replacement sheets may be necessary to show the renumbering of the remaining figures. Each drawing sheet submitted after the filing date of an application must be labeled in the top margin as either “Replacement Sheet” or “New Sheet” pursuant to 37 CFR 1.121(d). If the changes are not accepted by the examiner, the applicant will be notified and informed of any required corrective action in the next Office action. The objection to the drawings will not be held in abeyance.
Claim Objections
Claims 1,3-5,9,12,14-15 are objected to because of the following informalities:
“OFDM” in claims 1,14 should be spelled out, since it is the first introduction.
“M, N” in claims 1,14 should be defined.
Claim 1 further recites “a respective antenna of the transmitter” should be “the respective antenna of radiofrequency transmitter”.
Claim 1 further recites “for at least one antenna of the transmitter” should be “for at least one antenna of the radiofrequency transmitter”.
Claim 1 further recites “each antenna of the transmitter” should be “each antenna of the radiofrequency transmitter”.
Claim 1 further recites “for at least one given antenna of the transmitter” should be “for at least one given antenna of the radiofrequency transmitter”.
Claim 1 further recites “with the given antenna” should be “with the at least one given antenna of the radiofrequency transmitter”.
Claim 1 further recites “each antenna of the transmitter” should be “each antenna of the radiofrequency transmitter”.
Claim 1 further recites “concatenation of the error signals associated with the given subcarrier” should be “concatenation of the N error signals with the at least one given subcarrier”.
Claim 1 further recites “...subcarrier error vector, of M error signals” should be “...subcarrier error vector, of N error signals”.
Claim 1 further recites “...vector being associated with a respective antenna” should be “...vector being associated with a respective antenna of the radiofrequency transmitter”.
Claim 1 further recites “...signals being associated with a respective antenna” should be “...signals being associated with a respective antenna of the radiofrequency transmitter”.
Claim 1 further recites “the given subcarrier” should be “the at least one given subcarrier”.
Claim 1 further recites “for at least one antenna of the transmitter” should be “for the at least one antenna of the radiofrequency transmitter”.
Claim 1 further recites “an OFDM symbol implements” should be “the OFDM symbol implements”.
Claim 1 further recites “the peak-to-average power ratio reduction signal...said antenna” should be “each peak-to-average power ratio reduction signal... said antenna of the radiofrequency transmitter”.
Claim 1 further recites “the given subcarrier” should be “the at least one given subcarrier”.
Claim 1 further recites “said M error signals” should be “said N error signals”.
Claim 1 further recites “...by the transmitter” should be “...by the radiofrequency transmitter”.
Claim 1 further recites “a receivers operator” should be “receivers operator”.
Claim 1 further recites “said operator modeling an estimated propagation channel” should be “said operator modeling the estimated propagation channel”.
Claim 3 recites “by a corresponding subcarrier of a spatial component” should be
“by the corresponding subcarrier of the spatial component”.
Claim 3 further recites “...an OFDM symbol implementing” should be “...the OFDM symbol implementing”.
Claim 3 further recites “each antenna of the transmitter” should be “each antenna of the radiofrequency transmitter”.
Claim 4 recites “...the transmitter” should be “...the radiofrequency transmitter”.
Claim 5 recites “...the transmitter” should be “...the radiofrequency transmitter”.
Claim 9 recites “... the antennas of the transmitter” should be “...the antennas of the radiofrequency transmitter”.
Claim 9 further recites “... the transmitter” should be “...the radiofrequency transmitter”.
Claim 12 recites “... the transmitter” should be “...the radiofrequency transmitter”.
Claim 12 further recites “...the antennas of the transmitter” should be “...the antennas of the radiofrequency transmitter”.
Claim 14 recites “a respective antenna of the transmitter” should be “the respective antenna of radiofrequency transmitter”.
Claim 14 further recites “for at least one antenna of the transmitter” should be “for at least one antenna of the radiofrequency transmitter”.
Claim 14 further recites “a temporal portion of the spatial component” should be “the temporal portion of the spatial component”.
Claim 14 further recites “each antenna of the transmitter” should be “each antenna of the radiofrequency transmitter”.
Claim 14 recites “the given antenna” should be “the at least one
given antenna of the radiofrequency transmitter”.
Claim 14 further recites “each antenna of the transmitter” should be “each antenna of the radiofrequency transmitter”.
Claim 14 further recites “concatenation of the error signals with the given subcarrier” should be “concatenation of the N error signals with the at least one given subcarrier”.
Claim 14 further recites “...subcarrier error vector, of M error signals” should be “...subcarrier error vector, of N error signals”.
Claim 14 further recites “... a respective antenna” should be “... a respective antenna of the radiofrequency transmitter”.
Claim 14 further recites “the given subcarrier” should be “the at least one given subcarrier”.
Claim 14 further recites “... a respective antenna” should be “... a respective antenna of the radiofrequency transmitter”.
Claim 14 further recites “for at least one antenna of the transmitter” should be “for the at least one antenna of the radiofrequency transmitter”.
Claim 14 further recites “...an OFDM symbol implements” should be “...the OFDM symbol implements”.
Claim 14 further recites “the peak-to-average power ratio reduction signal...” should be “each peak-to-average power ratio reduction signal ...”.
Claim 14 further recites “the given subcarrier” should be “the at least one given subcarrier”.
Claim 14 further recites “...M error signals” should be “... N error signals”.
Claim 14 further recites “the transmitter” should be “the radiofrequency transmitter”.
Claim 14 further recites “a receivers operator” should be “receivers operator”.
Claim 14 further recites “said operator modeling an estimated propagation channel” should be “said operator modeling the estimated propagation channel”.
Claim 15 recites “A radiofrequency transmitter comprising the device according to claim 14” should be “the radiofrequency transmitter comprising the electronic device according to claim 14.
Appropriate correction is required.
Claim Rejections - 35 USC § 112
The following is a quotation of 35 U.S.C. 112(b):
(b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention.
The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph:
The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention.
Claims 1-3, 5-7,10,14 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention.
Claim 1 recites the limitation "said signal" in page 3 preamble.
There is insufficient antecedent basis for this limitation in the claim.
Claim 1 further recites the limitation "the new modulation symbol" in page 4.
There is insufficient antecedent basis for this limitation in the claim.
Claim 1 further recites the limitation "the distortion signal" in page 4.
There is insufficient antecedent basis for this limitation in the claim.
Claim 1 further recites the limitation "the difference between the clipped OFDM symbols and the OFDM symbols" in page 4.
There is insufficient antecedent basis for this limitation in the claim.
Claim 1 further recites the limitation "the identity operator" in page 5.
There is insufficient antecedent basis for this limitation in the claim.
Claim 1 further recites the limitation "the corresponding receiver" in page 5.
There is insufficient antecedent basis for this limitation in the claim.
Claim 1 further recites the limitation "the direction" in page 5.
There is insufficient antecedent basis for this limitation in the claim.
Claim 2 recites the limitation "said at least one predetermined direction" in page 5.
There is insufficient antecedent basis for this limitation in the claim.
Claim 3 recites the limitation " the propagation of " in page 6.
There is insufficient antecedent basis for this limitation in the claim.
Claim 5 further recites the limitation "the direction" in page 7.
There is insufficient antecedent basis for this limitation in the claim.
Claim 5 further recites the limitation "the power allocated" in page 7.
There is insufficient antecedent basis for this limitation in the claim.
Claim 6 recites the limitation "the direction" in page 7.
There is insufficient antecedent basis for this limitation in the claim.
Claim 7 recites the limitation "the zero operator" in page 7.
There is insufficient antecedent basis for this limitation in the claim.
Claim 10 recites the limitation "the updated OFDM symbol" in page 8.
There is insufficient antecedent basis for this limitation in the claim.
Claim 10 further recites the limitation "the updated clipped OFDM symbol" in page 8.
There is insufficient antecedent basis for this limitation in the claim.
Claim 14 recites the limitation "said signal" in page 9 preamble.
There is insufficient antecedent basis for this limitation in the claim.
Claim 14 further recites the limitation "the new modulation symbol" in page 11.
There is insufficient antecedent basis for this limitation in the claim.
Claim 14 further recites the limitation "the distortion signal" in page 11.
There is insufficient antecedent basis for this limitation in the claim.
Claim 14 further recites the limitation "the difference between the clipped OFDM symbols and the OFDM symbols" in page 11.
Claim 14 further recites the limitation "the identity operator" in page 11.
There is insufficient antecedent basis for this limitation in the claim.
Claim 14 further recites the limitation "the corresponding receiver" in page 11.
There is insufficient antecedent basis for this limitation in the claim.
Claim 14 further recites the limitation "the level of distortion" in page 11.
There is insufficient antecedent basis for this limitation in the claim.
Claim 14 further recites the limitation "the direction" in page 11.
There is insufficient antecedent basis for this limitation in the claim.
Allowable Subject Matter
Claims 1-3, 5-7,10,14 would be allowable if rewritten or amended to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action. In addition, the objection of claims 1,3,5,14 needed to be overcome.
Claims 4,8-9,11-13,15 would be allowable if rewritten to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action and to include all of the limitations of the base claim and any intervening claims. In addition, the objection of claims 4,9,12,15 needed to be overcome.
The following is an examiner’s statement of reasons for allowance:
Reclaims 1-14
Prior art reference failed to teach or disclose method and for reducing a peak-to-average power ratio of an OFDM-type signal comprising N subcarriers, said signal resulting from stacking M spatial components that are each transmitted by a respective antenna of a radiofrequency transmitter to a plurality of receivers, wherein an electronic device executes: obtaining M clipped OFDM symbols, each to be a temporal portion of a spatial component transmitted by a respective antenna of the transmitter, said obtaining comprising, for at least one antenna of the transmitter: generating of an OFDM symbol by implementing an inverse Fourier transform applied to an input vector depending on modulation symbols, each component of the input vector to be conveyed by a corresponding subcarrier of a spatial component of the OFDM-type signal; and clipping generation, for at least one antenna of the transmitter, of an OFDM symbol implements said inverse Fourier transformation applied to an updated input vector, the updated input vector being a function of N new modulation symbols, the peak-to-average power ratio reduction signal of the vector of M reduction signals corresponding to said antenna and associated with the given subcarrier being added to the new modulation symbol intended to be conveyed by said given subcarrier in the updated input vector; wherein said projection implements a spatial coding of said M error signals of the subcarrier error vector based on an estimated propagation channel between said receivers and said transmitter so that the distortion signal related to the difference between the clipped OFDM symbols and the OFDM symbols is transmitted by the transmitter in at least one direction of a receiver, called a weak receiver, for which the estimated propagation channel corresponds to a propagation loss which is greater than a predetermined threshold, wherein said projection implements an operator Vl,n of said spatial coding being expressed as the identity operator from which a normalized modified spatial coding operator is subtracted, the normalized modified spatial coding operator being a function of a composition between a modified spatial precoding operator and an operator modeling said estimated propagation channel between said transmitter and said receivers, the modified spatial precoding operator being a function of an operator, called a receivers operator, from which a regularization operator is subtracted, the receivers operator being a function of a composition between an operator modeling said estimated propagation channel between said receivers and said transmitter and said operator modeling an estimated propagation channel between said transmitter and said receivers, each diagonal element of said receivers operator being representative of a power received by the corresponding receiver, the regularization operator being of a diagonal type, each diagonal element of said regularization operator being associated with a corresponding receiver, an amplitude of each diagonal element of said regularization operator allowing controlling of a level of distortion related to the difference between the OFDM symbols and the clipped OFDM symbols transmitted in the direction of the corresponding receiver.
Reclaim 15
Prior art reference failed to teach or disclose An electronic device for reducing a peak- to-average power ratio of an OFDM-type signal comprising N subcarriers, said signal resulting from stacking M spatial components that are each transmitted by a respective antenna of a radiofrequency transmitter to a plurality of receivers, said electronic device comprising a reprogrammable computing machine or a dedicated computing machine configured to perform an obtaining of M clipped OFDM symbols, each to be a temporal portion of a spatial component transmitted by a respective antenna of the transmitter, said obtaining comprising, for at least one antenna of the transmitter: generating an OFDM symbol by implementing an inverse Fourier transform applied to an input vector depending on modulation symbols, each component of the input vector being intended to be conveyed by a corresponding subcarrier of a spatial component of the OFDM-type signal; and a clipping of the OFDM symbol delivering a clipped OFDM symbol intended to be a temporal portion of the spatial component transmitted by said antenna, said generation and said clipping being repeated for each antenna of the transmitter delivering said M clipped OFDM symbols, wherein said reprogrammable computing machine or said dedicated computing machine is configured to perform, for at least one given antenna of the transmitter: a Fourier transformation of an error vector depending on a difference between the clipped OFDM symbol and the OFDM symbol associated with the given antenna, delivering a transformed error vector of N error signals, said Fourier transformation1 which is repeated for each antenna of the transmitter1 delivering M transformed error vectors of N error signals, wherein said reprogrammable computing machine or said dedicated computing machine is configured to perform, for at least one given subcarrier: a concatenation of the error signals associated with the given subcarrier in each of the M transformed error vectors delivering an error vector, called subcarrier error vector, of M error signals, each error signal in the subcarrier error vector being associated with a respective antenna; and a projection of said subcarrier error vector delivering a vector of M signals for reducing the peak-to-average power ratio associated with the given subcarrier, each peak-to-average power ratio reduction signal in said vector of M reduction signals being associated with a respective antenna; wherein said reprogrammable computing machine or said dedicated computing machine is further configured to perform a new implementation of said obtaining of M clipped OFDM symbols to generate M updated clipped OFDM symbols, wherein said generation, for at least one antenna of the transmitter, of an OFDM symbol implements said inverse Fourier transformation applied to an updated input vector, the updated input vector being a function of N new modulation symbols, the peak-to-average power ratio reduction signal of the vector of M reduction signals corresponding to said antenna and being associated with the given subcarrier being added to the new modulation symbol intended to be conveyed by said given subcarrier in the updated input vector; wherein said projection implements a spatial coding of said M error signals of the subcarrier error vector based on an estimated propagation channel between said receivers and said transmitter so that the distortion signal related to the difference between the clipped OFDM symbols and the OFDM symbols is transmitted by the transmitter in at least one direction of a receiver, called a weak receiver, for which the estimated propagation channel corresponds to a propagation loss which is greater than a predetermined threshold,ln of said spatial coding being expressed as the identity operator from which a normalized modified spatial coding operator is subtracted, the normalized modified spatial coding operator being a function of a composition between a modified spatial precoding operator and an operator modeling said estimated propagation channel between said transmitter and said receivers, the modified spatial precoding operator being a function of an operator, called a receivers operator, from which a regularization operator is subtracted, the receivers operator being a function of a composition between an operator modeling said estimated propagation channel between said receivers and said transmitter and said operator modeling an estimated propagation channel between said transmitter and said receivers, each diagonal element of said receivers operator being representative of a power received by the corresponding receiver, the regularization operator being of a diagonal type, each diagonal element of said regularization operator being associated with a corresponding receiver, an amplitude of each diagonal element of said regularization operator allowing controlling the level of distortion related to the difference between the OFDM symbols and the clipped OFDM symbols transmitted in the direction of the corresponding receiver.
Any comments considered necessary by applicant must be submitted no later than the payment of the issue fee and, to avoid processing delays, should preferably accompany the issue fee. Such submissions should be clearly labeled “Comments on Statement of Reasons for Allowance.”
Conclusion
The prior art made of record and not relied upon is considered pertinent to applicant's disclosure.
Prior art reference Li (et al. US 10,951,296) discloses direction controlled PAPR reduction.
Any inquiry concerning this communication or earlier communications from the examiner should be directed to RAHEL GUARINO whose telephone number is (571)270-1198. The examiner can normally be reached Monday-Friday 9AM-5PM.
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If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Chieh M Fan can be reached at 571-272-3042. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300.
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/RAHEL GUARINO/Primary Examiner, Art Unit 2632