Prosecution Insights
Last updated: May 29, 2026
Application No. 18/015,360

SIGNALING TO AID ENHANCED NR TYPE II CSI FEEDBACK

Non-Final OA §102§103
Filed
Jan 10, 2023
Priority
Jul 10, 2020 — provisional 63/050,550 +1 more
Examiner
PEI, PATRICK YIPAO
Art Unit
2473
Tech Center
2400 — Computer Networks
Assignee
Telefonaktiebolaget Lm Ericsson (Publ)
OA Round
2 (Non-Final)
81%
Grant Probability
Favorable
2-3
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 81% — above average
81%
Career Allowance Rate
17 granted / 21 resolved
+23.0% vs TC avg
Strong +31% interview lift
Without
With
+30.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
14 currently pending
Career history
45
Total Applications
across all art units

Statute-Specific Performance

§103
89.1%
+49.1% vs TC avg
§102
10.9%
-29.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 21 resolved cases

Office Action

§102 §103
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 . Response to Arguments Applicant's arguments filed August 25, 2025 have been fully considered but they are not persuasive. Applicant’s Arguments are addressed below. The claims have not overcome the claim rejections as shown below. Claims 1-16, 18-26, and 31 are pending. Regarding independent claim 1, Applicant argues that Ramireddy does no teach or suggest: a scenario where there is a selection of “receiving an indication indicating a subset of Frequency Domain, FD, basis vectors among a full set of FD basis vectors per a group of transmission layers from a radio network node”. Examiner respectfully disagrees. Ramireddy recites in [paragraph 0129] “UE may be configured to report in UCI part 2, an indication of the selected SD and (or) FD basis vectors associated with the joint bitmap. For example, the SD basis vectors associated with the joint bitmap are indicated by a max 2U.sup.(l)-sized bitmap, where each bit in the bitmap is associated with an index of a reported SD basis vector. Therefore, the max 2U.sup.(l)-sized bitmap contains U.sub.m ‘1’s. Similarly, the Frequency Domain (FD) basis vectors associated with the joint bitmap are indicated by a max D.sup.(l)-bitmap, where each bit in the bitmap is associated with an index of a reported FD basis vector”, in [paragraph 0131] “UE is configured to indicate in the CSI part 2, an indication of the selected SD basis vectors associated with the effective bitmap per layer and/or an indication of the selected FD basis vectors associated with the effective bitmap per layer. For example, the indication of the Spatial Domain (SD) basis vectors associated with the effective bitmap for a layer is indicated by a 2U.sup.(l)-sized bitmap, and may consist of U.sub.e.sup.(l) ‘1’s. Similarly, the FD basis associated with the effective bitmap per layer is reported by D.sup.(l)-sized bitmap, and may consist of D.sub.e.sup.(l) ‘1’s”, in [paragraph 0159] “UE may be configured to indicate the selected delay vectors from the CDD basis subset for each layer by a layer-specific delay domain basis (LDD) subset indicator in the CSI report”, in [paragraph 0178] “CDD basis subset indicator sets are either higher layer configured or known at the UE”, in [paragraphs 0202] “UE is configured to determine a layer-specific space domain (LSD) basis subset of the selected beam vectors and to indicate the beam vectors in the CSI report”, and in [paragraph 0214] “number of delays D.sup.(l) is configured for subsets of layers, e.g., for a first subset of layers, e.g., a first and second layers), D.sup.(1)=┌α.sub.1D.sup.(0)┐, and for a second subset of layers, e.g. a third layer or the third layer and a fourth layer), D.sup.(3)=┌α.sub.2D.sup.(2)┐, and receiving from the gNB a signal including two parameters D.sup.(0) and D.sup.(2) for the configuration of the precoder matrix” As shown, Ramireddy discloses that the subset of frequency domain is possible through layers associated with the frequency domain which Ramireddy recites in [paragraph 0131] “indication of the selected FD basis vectors associated with the effective bitmap per layer” that can be seen where layers are associated with subset which Ramireddy recites in [paragraph 0178] “CDD basis subset indicator sets are either higher layer configured or known at the UE” and that which can be seen similarly used by the spatial domain which Ramireddy recites in [paragraph 0129] “SD basis vectors associated with the joint bitmap are indicated by a max 2U.sup.(l)-sized bitmap, where each bit in the bitmap is associated with an index of a reported SD basis vector” which further seen with SD Basis Subset Indicators which Ramireddy recites in [paragraph 0202] “UE is configured to determine a layer-specific space domain (LSD) basis subset of the selected beam vectors and to indicate the beam vectors in the CSI report (part 2)”. The independent claims 16, 18 and 31 recite similar distinguishing features of independent claim 1 and thus are similarly disclosed by Ramireddy. Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claims 1, 7, 9, 16, 18, 23, 25, and 31 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Ramireddy et al. US 20220224391 A1 (Foreign Priority May 2, 2019). Regarding claim 1 (Currently Amended), Ramireddy discloses a method performed by a wireless device for reporting Channel State Information, CSI (see, UE reporting CSI feedback after receiving CSI-RS, section 0029), comprising: receiving an indication indicating a subset (see, SD basis indicator indicating the selected subset of beam vectors, section 0035; noted, an indication of the selected SD and (or) FD basis vectors associated with the joint bitmap shows the interchangeability of SD and FD, section 0129) of Frequency Domain, FD, basis vectors (see, UE may be configured to report in UCI, an indication of the FD basis vectors associated with the joint bitmap, section 0129) among a full set of FD basis vectors (see, indication of FD basis vectors, sections 0129, 0134) per a group of transmission layers (UE may report the bitmaps of the layers or determine per layer an effective bitmap, section 0130) from a radio network node (see, UE is configured from the gNB with a CSI report configuration that contains the higher-layer (e.g., RRC) parameter(s) representing the number vectors, section 0042); computing a CSI corresponding to an enhanced type II port selection codebook (see, codebook may be called as port selection codebook and is used when a beamforming operation is performed by the gNB such that each antenna port corresponds to a beam-formed port, section 0032) using the indicated subset of FD basis vectors (see, SD basis indicator indicating the selected subset of beam vectors, section 0035; noted, an indication of the selected SD and (or) FD basis vectors associated with the joint bitmap shows the interchangeability of SD and FD, section 0129); and reporting the CSI to the radio network node (see, UE may be configured to report in UCI, an indication of the FD basis vectors associated with the joint bitmap, section 0129). Regarding claim 7 (Original), the method of claim 6, wherein the field in the MAC CE comprises one of: a bitmap of N3 bits (see, variables associated with bitmap, section 113-128 figures 00002-00012); and a bitmap of [log2(N3)] bits (see, log2() of variables associated with bitmap, section 113-128 figures 00002-00012). Regarding claim 9 (Original), the method of claim 8, wherein each of the plurality of fields in the MAC CE comprises one of: a bitmap of N3 bits (see, variables associated with bitmap, section 113-128 figures 00002-00012); and a bitmap of [log2(N3)] bits (see, log2() of variables associated with bitmap, section 113-128 figures 00002-00012). Regarding claim 16 (Currently Amended), Ramireddy discloses a wireless device comprising processing circuitry (fig. 3, UE 300 comprises a processor 310 or processing circuit or a processing module or a processor or means 310, section 0228) configured to cause the wireless device to: receive an indication indicating a subset (see, SD basis indicator indicating the selected subset of beam vectors, section 0035; noted, an indication of the selected SD and (or) FD basis vectors associated with the joint bitmap shows the interchangeability of SD and FD, section 0129) of Frequency Domain, FD, basis vectors (see, UE may be configured to report in UCI, an indication of the FD basis vectors associated with the joint bitmap, section 0129) among a full set of FD basis vectors (see, indication of FD basis vectors, sections 0129, 0134) per a group of transmission layers (UE may report the bitmaps of the layers or determine per layer an effective bitmap, section 0130) from a radio network node (see, UE is configured from the gNB with a CSI report configuration that contains the higher-layer (e.g., RRC) parameter(s) representing the number vectors, section 0042); compute a CSI corresponding to an enhanced type II port selection codebook (see, codebook may be called as port selection codebook and is used when a beamforming operation is performed by the gNB such that each antenna port corresponds to a beam-formed port, section 0032) using the indicated subset of FD basis vectors (see, SD basis indicator indicating the selected subset of beam vectors, section 0035; noted, an indication of the selected SD and (or) FD basis vectors associated with the joint bitmap shows the interchangeability of SD and FD, section 0129); and report the CSI to the radio network node (see, UE may be configured to report in UCI, an indication of the FD basis vectors associated with the joint bitmap, section 0129). Regarding claim 18 (Currently Amended), Ramireddy discloses a method performed by a radio network node (see, UE is configured from the gNB with a CSI report configuration that contains the higher-layer (e.g., RRC) parameter(s) representing the number vectors, section 0042) for enabling a wireless device to report Channel State Information, CSI (see, UE reporting CSI feedback after receiving CSI-RS, section 0029), comprising: providing an indication indicating a subset (see, SD basis indicator indicating the selected subset of beam vectors, section 0035; noted, an indication of the selected SD and (or) FD basis vectors associated with the joint bitmap shows the interchangeability of SD and FD, section 0129) of Frequency Domain, FD, basis vectors (see, UE may be configured to report in UCI, an indication of the FD basis vectors associated with the joint bitmap, section 0129) among a full set of FD basis vectors (see, indication of FD basis vectors, sections 0129, 0134) per a group of transmission layers (UE may report the bitmaps of the layers or determine per layer an effective bitmap, section 0130) to the wireless device (see, UE is configured from the gNB with a CSI report configuration that contains the higher-layer (e.g., RRC) parameter(s) representing the number vectors, section 0042); and receiving a CSI from the wireless device (see, the UE reports the CSI report, sections 0094-0096). Regarding claim 23 (Original), the method of claim 22, wherein the field in the MAC CE comprises one of: a bitmap of N3 bits (see, variables associated with bitmap, section 113-128 figures 00002-00012); and a bitmap of [log2(N3)] bits (see, log2() of variables associated with bitmap, section 113-128 figures 00002-00012). Regarding claim 25 (Original), Ramireddy discloses the method of claim 24, wherein each of the plurality of fields in the MAC CE comprises one of: a bitmap of N3 bits (see, variables associated with bitmap, section 113-128 figures 00002-00012); and a bitmap of [log2(N3)] bits (see, log2() of variables associated with bitmap, section 113-128 figures 00002-00012). Regarding claim 31 (Currently Amended), Ramireddy discloses a radio network node (see, UE is configured from the gNB with a CSI report configuration that contains the higher-layer (e.g., RRC) parameter(s) representing the number vectors, section 0042) comprising processing circuitry (fig. 3, UE 300 comprises a processor 310 or processing circuit or a processing module or a processor or means 310, section 0228) configured to cause the radio network node to: provide an indication indicating a subset (see, SD basis indicator indicating the selected subset of beam vectors, section 0035; noted, an indication of the selected SD and (or) FD basis vectors associated with the joint bitmap shows the interchangeability of SD and FD, section 0129) of Frequency Domain, FD, basis vectors (see, UE may be configured to report in UCI, an indication of the FD basis vectors associated with the joint bitmap, section 0129) among a full set of FD basis vectors (see, indication of FD basis vectors, sections 0129, 0134) per a group of transmission layers (UE may report the bitmaps of the layers or determine per layer an effective bitmap, section 0130) to the wireless device (see, UE is configured from the gNB with a CSI report configuration that contains the higher-layer (e.g., RRC) parameter(s) representing the number vectors, section 0042); and receive a CSI from the wireless device (see, the UE reports the CSI report, sections 0094-0096). Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claim 2 is rejected under 35 U.S.C. 103 as being unpatentable over Ramireddy et al. US 20220224391 A1 (Foreign Priority May 2, 2019) in view of Shattil et al. US 20070211786 A1 (Domestic Priority December 6, 2002). Ramireddy discloses all the claim limitations as set forth above but fails to explicitly disclose: Regarding claim 2 (Original), the method of claim 1, wherein the full set of FD basis vectors comprises a set of orthogonal complex vectors having a length that equals N3. However Shattil from a similar field of endeavor discloses: the full set of FD basis vectors (see, set of orthonormal basis vectors that correspond to frequency domain signals, sections 0473-0477 Shattil) comprises a set of orthogonal complex vectors (see, orthogonal frequencies associated with frequency corresponds to time-domain multiplied by complex values, section 1006 Shattil) having a length that equals N3 (see, a set of vectors of length variable N associated with orthonormal basis vector, section 0447 Shattil). In view of the above, it would have been obvious before the effective filling date of the claim invention to a person having ordinary skill in the art of which the claimed invention pertains to modify the method of Ramireddy with the orthogonal complex vectors as taught by Shattil. The motivation would have been to improve operations across frequency bands. Claim 3 is rejected under 35 U.S.C. 103 as being unpatentable over Ramireddy et al. US 20220224391 A1 (Foreign Priority May 2, 2019) in view of Lim et al. US 20230299914 A1 (Foreign Priority May 6, 2020). Ramireddy discloses all the claim limitations as set forth above but fails to explicitly disclose: Regarding claim 3 (Original), The method of claim 2, wherein N3 is determined by higher layer parameters numberOfPMISubbandsPerCQISubband and csi-ReportingBand. However Lim from a similar field of endeavor discloses: the method of claim 2, wherein N3 (see, total number of precoding matrices is N3=RNSB, section 0129, figures 00009, 00010 Lim) is determined by higher layer parameters numberOfPMISubbandsPerCQISubband (see, R is configured by numberOfPMISubbandsPerCQISubband, section 0129, figures 00009, 00010 Lim) and csi-ReportingBand (see, csi-ReportingBand indicates a contiguous or non-contiguous subset of subbands in the bandwidth part which CSI shall be reported for, section 0088 table 4 Lim; noted, Need R with csi-ReportingBand with CHOICE of subbands, section 0088 table 4 Lim). In view of the above, it would have been obvious before the effective filling date of the claim invention to a person having ordinary skill in the art of which the claimed invention pertains to modify the method of Ramireddy with the “numberOfPMISubbandsPerCQISubb” and “csi-ReportingBand” and as taught by Lim. The motivation would have been to accurately indicate the channel state of the UE to the BS. Claims 4-6, 8, 10-11, 14-15, 19-22, 24, and 26 are rejected under 35 U.S.C. 103 as being unpatentable over Ramireddy et al. US 20220224391 A1 (Foreign Priority May 2, 2019) in view of Wang et al. US 20210167835 A1 (Foreign Priority August 10, 2018). Ramireddy discloses all the claim limitations as set forth above but fails to explicitly disclose: Regarding claim 4 (Currently Amended), The method claim1, wherein receiving the indicator indicating the subset of FD basis vectors comprises receiving the indication indicating the subset of FD basis vectors in a control message. However Wang from a similar field of endeavor discloses: the method of claim 1, wherein receiving the indicator indicating the subset of FD basis vectors (see, frequency domain vectors as a subset of a vector set, section 0029 Wang) comprises receiving the indication indicating the subset of FD basis vectors in a control message (see, frequency domain basis vectors indicates in each group of indication information, section 0257 Wang; noted, indication information can be carried interchangeably between a RRC message, MAC CE, or DCI, section 0380 Wang). In view of the above, it would have been obvious before the effective filling date of the claim invention to a person having ordinary skill in the art of which the claimed invention pertains to modify the method of Ramireddy with the subset of FD basis vectors as taught by Wang. The motivation would have been to help improve signal quality, implement spatial multiplexing, and improve spectrum utilization. Ramireddy discloses all the claim limitations as set forth above but fails to explicitly disclose: Regarding claim 5 (Original), the method of claim 4, wherein the control message is a Medium Access Control, MAC, Control Element, CE. However Wang from a similar field of endeavor discloses: the method of claim 4, wherein the control message is a Medium Access Control, MAC, Control Element, CE (see, the RRC message can be substituted with a MAC CE, section 0175 Wang). In view of the above, it would have been obvious before the effective filling date of the claim invention to a person having ordinary skill in the art of which the claimed invention pertains to modify the method of Ramireddy with the MAC CE as taught by Wang. The motivation would have been to help improve signal quality, implement spatial multiplexing, and improve spectrum utilization. Ramireddy discloses all the claim limitations as set forth above but fails to explicitly disclose: Regarding claim 6 (Original), the method of claim 5, wherein the MAC CE comprises a field configured to indicate the subset of FD basis vectors among the full set of FD basis vectors. However Wang from a similar field of endeavor discloses: the method of claim 5, wherein the MAC CE comprises a field (see, MAC layer of gNB, section 0110 Wang) configured to indicate the subset of FD basis vectors (see, frequency domain vectors as a subset of a vector set, section 0029 Wang) among the full set of FD basis vectors (see, frequency domain vector can be column vectors which can be a vector set, section 0350 Wang). In view of the above, it would have been obvious before the effective filling date of the claim invention to a person having ordinary skill in the art of which the claimed invention pertains to modify the method of Ramireddy with the subset of FD basis vectors as taught by Wang. The motivation would have been to help improve signal quality, implement spatial multiplexing, and improve spectrum utilization. Ramireddy discloses all the claim limitations as set forth above but fails to explicitly disclose: Regarding claim 8 (Original), the method of claim 5, wherein the MAC CE comprises a plurality of fields each configured to indicate the subset of FD basis vectors among the full set of FD basis vectors for a respective one of a plurality of layers. However Wang from a similar field of endeavor discloses: the method of claim 5, wherein the MAC CE comprises a plurality of fields (see, MAC layer of gNB, section 0110 Wang) each configured to indicate the subset of FD basis vectors (see, frequency domain vectors as a subset of a vector set, section 0029 Wang) among the full set of FD basis vectors (see, frequency domain vector can be column vectors which can be a vector set, section 0350 Wang)for a respective one of a plurality of layers (Frequency domain information of the transmission layer may be determined by selected frequency domain basis vectors, section 0167 Wang). In view of the above, it would have been obvious before the effective filling date of the claim invention to a person having ordinary skill in the art of which the claimed invention pertains to modify the method of Ramireddy with the subset of FD basis vectors as taught by Wang. The motivation would have been to help improve signal quality, implement spatial multiplexing, and improve spectrum utilization. Ramireddy discloses all the claim limitations as set forth above but fails to explicitly disclose: Regarding claim 10 (Currently Amended), the method of claim1, wherein receiving the indication indicating subset of FD basis vectors comprises receiving the indication indicating the subset of FD basis vectors in a Downlink Control Information, DCI. However Wang from a similar field of endeavor discloses: the method of claim1, wherein receiving the indication indicating subset of FD basis vectors (see, frequency domain vectors as a subset of a vector set, section 0029 Wang) comprises receiving the indication indicating the subset of FD basis vectors in a Downlink Control Information, DCI (see, frequency domain basis vectors indicates in each group of indication information, section 0257 Wang; noted, indication information can be carried interchangeably between a RRC message, MAC CE, or DCI, section 0380 Wang). In view of the above, it would have been obvious before the effective filling date of the claim invention to a person having ordinary skill in the art of which the claimed invention pertains to modify the method of Ramireddy with the DCI as taught by Wang. The motivation would have been to help improve signal quality, implement spatial multiplexing, and improve spectrum utilization. Ramireddy discloses all the claim limitations as set forth above but fails to explicitly disclose: Regarding claim 11 (Original), the method of claim 10, wherein the DCI comprises a field corresponding to a codepoint and configured to indicate the subset of FD basis vectors among the full set of FD basis vectors. However Wang from a similar field of endeavor discloses: the method of claim 10, wherein the DCI comprises a field (see, MAC layer of gNB, section 0110 Wang; noted, indication information can be carried interchangeably between a RRC message, MAC CE, or DCI, section 0380 Wang) corresponding to a codepoint (see, DCI carries information towards an antenna port, sections 0380-0381 Wang) and configured to indicate the subset of FD basis vectors (see, frequency domain vectors as a subset of a vector set, section 0029 Wang) among the full set of FD basis vectors (see, frequency domain vector can be column vectors which can be a vector set, section 0350 Wang). Ramireddy discloses all the claim limitations as set forth above but fails to explicitly disclose: Regarding claim 15 (Currently Amended), However Wang from a similar field of endeavor discloses: the method of claim 1, wherein: computing the CSI using the indicated subset of FD basis vectors (see, precoding matrix corresponding to a subband that is used as a frequency domain unit, section 0135 Wang; noted, CSI may include a precoding matrix indicator (PMI), section 0125 Wang) comprises computing the CSI based on a selected subset of the indicated subset of FD basis vectors (see, precoding matrix corresponding to a subband that is used as a frequency domain unit, section 0135 Wang; noted, CSI may include a precoding matrix indicator (PMI), section 0125 Wang); and reporting the CSI comprises reporting indices (see, to-be-reported subbands are indicated by using a bitmap where “1” indicates a to-be-reported subband, section 0398 Wang) indicating the selected subset of the indicated subset of FD basis vectors (see, frequency domain vectors as a subset of a vector set, section 0029 Wang) as part of an enhanced type II port selection Precoding Matrix Indicator, PMI, report (see, CSI may include a precoding matrix indicator (PMI), section 0125 Wang). In view of the above, it would have been obvious before the effective filling date of the claim invention to a person having ordinary skill in the art of which the claimed invention pertains to modify the method of Ramireddy with the DCI as taught by Wang. The motivation would have been to help improve signal quality, implement spatial multiplexing, and improve spectrum utilization. Ramireddy discloses all the claim limitations as set forth above but fails to explicitly disclose: Regarding claim 14 (Currently Amended), the method of claim 1, wherein: computing the CSI using the indicated subset of FD basis vectors comprises computing the CSI based on all of the indicated subset of FD basis vectors; and reporting the CSI comprises not reporting indices indicating a subset of the indicated subset of FD basis vectors as part of an enhanced type II port selection Precoding Matrix Indicator, PMI, report. However Wang from a similar field of endeavor discloses: the method of claim 1, wherein: computing the CSI using the indicated subset of FD basis vectors (see, precoding matrix corresponding to a subband that is used as a frequency domain unit, section 0135 Wang; noted, CSI may include a precoding matrix indicator (PMI), section 0125 Wang) comprises computing the CSI based on all of the indicated subset of FD basis vectors (see, precoding matrix corresponding to a subband that is used as a frequency domain unit, section 0135 Wang; noted, CSI may include a precoding matrix indicator (PMI), section 0125 Wang); and reporting the CSI comprises not reporting indices (see, to-be-reported subbands are indicated by using a bitmap where “0” is used to indicate a subband that is not to be reported, section 0398 Wang) indicating a subset of the indicated subset of FD basis vectors (see, frequency domain vectors as a subset of a vector set, section 0029 Wang) as part of an enhanced type II port selection Precoding Matrix Indicator, PMI, report (see, CSI may include a precoding matrix indicator (PMI), section 0125 Wang). In view of the above, it would have been obvious before the effective filling date of the claim invention to a person having ordinary skill in the art of which the claimed invention pertains to modify the method of Ramireddy with the DCI as taught by Wang. The motivation would have been to help improve signal quality, implement spatial multiplexing, and improve spectrum utilization. Ramireddy discloses all the claim limitations as set forth above but fails to explicitly disclose: Regarding claim 15 (Currently Amended), the method of claim 1, wherein: computing the CSI using the indicated subset of FD basis vectors comprises computing the CSI based on a selected subset of the indicated subset of FD basis vectors; and reporting the CSI comprises reporting indices indicating the selected subset of the indicated subset of FD basis vectors as part of an enhanced type II port selection Precoding Matrix Indicator, PMI, report. However Wang from a similar field of endeavor discloses: the method of claim 1, wherein: computing the CSI using the indicated subset of FD basis vectors (see, precoding matrix corresponding to a subband that is used as a frequency domain unit, section 0135 Wang; noted, CSI may include a precoding matrix indicator (PMI), section 0125 Wang) comprises computing the CSI based on a selected subset of the indicated subset of FD basis vectors (see, precoding matrix corresponding to a subband that is used as a frequency domain unit, section 0135 Wang; noted, CSI may include a precoding matrix indicator (PMI), section 0125 Wang); and reporting the CSI comprises reporting indices (see, to-be-reported subbands are indicated by using a bitmap where “1” indicates a to-be-reported subband, section 0398 Wang) indicating the selected subset of the indicated subset of FD basis vectors (see, frequency domain vectors as a subset of a vector set, section 0029 Wang) as part of an enhanced type II port selection Precoding Matrix Indicator, PMI, report (see, CSI may include a precoding matrix indicator (PMI), section 0125 Wang). In view of the above, it would have been obvious before the effective filling date of the claim invention to a person having ordinary skill in the art of which the claimed invention pertains to modify the method of Ramireddy with the precoding matrix indicator as taught by Wang. The motivation would have been to help improve signal quality, implement spatial multiplexing, and improve spectrum utilization. Ramireddy discloses all the claim limitations as set forth above but fails to explicitly disclose: Regarding claim 19 (Currently Amended), the method of claim 18, further comprising determining the subset of FD basis vectors among the full set of FD basis vectors based on one or more uplink measurements performed on a Sounding Reference Signal, SRS, received from the wireless device. However Wang from a similar field of endeavor discloses: the method of claim 18, further comprising determining the subset of FD basis vectors (see, frequency domain vectors as a subset of a vector set, section 0029 Wang) among the full set of FD basis vectors (see, frequency domain vector can be column vectors which can be a vector set, section 0350 Wang) based on one or more uplink measurements performed on a Sounding Reference Signal, SRS, received from the wireless device (see, network device may perform CSI measurement based on a received SRS, to indicate CSI of an uplink channel to the terminal device, section 0124 Wang). In view of the above, it would have been obvious before the effective filling date of the claim invention to a person having ordinary skill in the art of which the claimed invention pertains to modify the method of Ramireddy with the indicated subset of FD basis vectors as taught by Wang. The motivation would have been to help improve signal quality, implement spatial multiplexing, and improve spectrum utilization. Ramireddy discloses all the claim limitations as set forth above but fails to explicitly disclose: Regarding claim 20 (Currently Amended), the method claim 18, wherein providing the indication indicating the subset of FD basis vectors comprises providing the indication indicating the subset of FD basis vectors in a control message. However Wang from a similar field of endeavor discloses: the method of claim 18, wherein providing the indication indicating the subset of FD basis vectors (see, frequency domain vectors as a subset of a vector set, section 0029 Wang) comprises providing the indication indicating the subset of FD basis vectors in a control message (see, frequency domain basis vectors indicates in each group of indication information, section 0257 Wang; noted, indication information can be carried interchangeably between a RRC message, MAC CE, or DCI, section 0380 Wang). In view of the above, it would have been obvious before the effective filling date of the claim invention to a person having ordinary skill in the art of which the claimed invention pertains to modify the method of Ramireddy with the indicated subset of FD basis vectors as taught by Wang. The motivation would have been to help improve signal quality, implement spatial multiplexing, and improve spectrum utilization. Ramireddy discloses all the claim limitations as set forth above but fails to explicitly disclose: Regarding claim 21 (Original), The method of claim 20, wherein the control message is a Medium Access Control, MAC, Control Element, CE. However Wang from a similar field of endeavor discloses: the method of claim 20, wherein the control message is a Medium Access Control, MAC, Control Element, CE (see, the RRC message can be substituted with a MAC CE, section 0175 Wang). In view of the above, it would have been obvious before the effective filling date of the claim invention to a person having ordinary skill in the art of which the claimed invention pertains to modify the method of Ramireddy with the Medium Access Control Control Element by Wang. The motivation would have been to help improve signal quality, implement spatial multiplexing, and improve spectrum utilization. Ramireddy discloses all the claim limitations as set forth above but fails to explicitly disclose: Regarding claim 22 (Currently Amended), The method of claim 21, wherein the MAC CE comprises a field configured to indicate the indicated subset of FD basis vectors among the full set of FD basis vectors. However Wang from a similar field of endeavor discloses: the method of claim 21, wherein the MAC CE comprises a field (see, MAC layer of gNB, section 0110 Wang) configured to indicate the indicated subset of FD basis vectors (see, frequency domain vectors as a subset of a vector set, section 0029 Wang) among the full set of FD basis vectors (see, frequency domain vector can be column vectors which can be a vector set, section 0350 Wang). In view of the above, it would have been obvious before the effective filling date of the claim invention to a person having ordinary skill in the art of which the claimed invention pertains to modify the method of Ramireddy with the indicated subset of FD basis vectors as taught by Wang. The motivation would have been to help improve signal quality, implement spatial multiplexing, and improve spectrum utilization. Ramireddy discloses all the claim limitations as set forth above but fails to explicitly disclose: Regarding claim 24 (Currently Amended), The method of claim 21, wherein the MAC CE comprises a plurality of fields each configured to indicate the indicated subset of FD basis vectors among the full set of FD basis vectors for a respective one of a plurality of layers. However Wang from a similar field of endeavor discloses: the method of claim 21, wherein the MAC CE comprises a plurality of fields (see, MAC layer of gNB, section 0110 Wang) each configured to indicate the indicated subset of FD basis vectors (see, frequency domain vectors as a subset of a vector set, section 0029 Wang) among the full set of FD basis vectors (see, frequency domain vector can be column vectors which can be a vector set, section 0350 Wang) for a respective one of a plurality of layers (Frequency domain information of the transmission layer may be determined by selected frequency domain basis vectors, section 0167 Wang). In view of the above, it would have been obvious before the effective filling date of the claim invention to a person having ordinary skill in the art of which the claimed invention pertains to modify the method of Ramireddy with MAC CE as taught by Wang. The motivation would have been to help improve signal quality, implement spatial multiplexing, and improve spectrum utilization. Ramireddy discloses all the claim limitations as set forth above but fails to explicitly disclose: Regarding claim 26 (Currently Amended), the method claim 18, wherein providing the indication indicating the subset of FD basis vectors comprises providing the indication indicating the subset of FD basis vectors in a Downlink Control Information, DCI. However Wang from a similar field of endeavor discloses: the method of claim 18, wherein providing the indication indicating the subset of FD basis vectors (see, frequency domain vectors as a subset of a vector set, section 0029 Wang) comprises providing the indication indicating the subset of FD basis vectors in a Downlink Control Information, DCI (see, frequency domain basis vectors indicates in each group of indication information, section 0257 Wang; noted, indication information can be carried interchangeably between a RRC message, MAC CE, or DCI, section 0380 Wang). In view of the above, it would have been obvious before the effective filling date of the claim invention to a person having ordinary skill in the art of which the claimed invention pertains to modify the method of Ramireddy with the subset of FD basis vectors in a Downlink Control Information as taught by Wang. The motivation would have been to help improve signal quality, implement spatial multiplexing, and improve spectrum utilization. Claim 12 is rejected under 35 U.S.C. 103 as being unpatentable over Ramireddy et al. US 20220224391 A1 (Foreign Priority May 2, 2019) in view of Wang et al. US 20210167835 A1 (Foreign Priority August 10, 2018) of claims 10 and 11 and in further view of Cirik et al. US 20200267712 A1 (Domestic Priority February 14, 2019). The combination of Ramireddy and Wang discloses all the claim limitations as set forth above but fails to explicitly disclose: Regarding claim 12 (Original), the method of claim 11, wherein the field in the DCI comprises a CSI- AssociatedReportConfigInfo corresponding to the codepoint. However Cirik from a similar field of endeavor discloses: the method of claim 11, wherein the field in the DCI (see, codepoint of a CSI request field in a DCI may indicate/be associated with an aperiodic trigger state of the one or more aperiodic trigger states, section 0373 Cirik) comprises a CSI- AssociatedReportConfigInfo (see, report parameter such as CSI-AssociatedReportConfigInfo or associatedReportConfigInfoList, sections 0373-0374; noted, aperiodic trigger state may comprise one or more report configurations by a report parameter, section 0373 Cirik) corresponding to the codepoint (see, codepoint of a CSI request field in a DCI may indicate/be associated with an aperiodic trigger state of the one or more aperiodic trigger states, section 0373 Cirik). In view of the above, it would have been obvious before the effective filling date of the claim invention to a person having ordinary skill in the art of which the claimed invention pertains to modify the combination of Ramireddy and Wang with the “numberOfPMISubbandsPerCQISubb” and “csi-ReportingBand” and as taught by Cirik. The motivation would have been to accurately indicate the channel state of the UE to the BS. Claim 13 is rejected under 35 U.S.C. 103 as being unpatentable over Ramireddy et al. US 20220224391 A1 (Foreign Priority May 2, 2019) in view of Nazar et al. US 20120275530 A1 (Domestic Priority April 29, 2011). Ramireddy discloses all the claim limitations as set forth above but fails to explicitly disclose: Regarding claim 13 (Currently Amended), The method of claim 1, further comprising: receiving (802), from the radio network node, a configuration of a CSI-Reference Signal, CSI-RS, resource with a set of CSI-RS ports and an indication that indicates one or more of: one or more non-zero power CSI-RS ports in the CSI-RS resource; and one or more zero power CSI-RS ports in the CSI-RS resource; and performing (804) channel measurements based on the one or more non-zero power CSI- RS ports. However Nazar from a similar field of endeavor discloses: the method of claim 1, further comprising: receiving, from the radio network node, a configuration of a CSI-Reference Signal, CSI-RS, resource (see, the CSI-RS configuration of a WTRU, section 0064 Nazar) with a set of CSI-RS ports (see, CSI-RS configurations associated with the number of DM-RS antenna ports, section 0064 Nazar) and an indication that indicates one or more of: one or more non-zero power CSI-RS ports in the CSI-RS resource (see, CSI-RS configuration with a non-zero transmission power is the reference configuration for implicit derivation of the number of DM-RS antenna ports, section 0064 Nazar); and one or more zero power CSI-RS ports in the CSI-RS resource (see, one of the CSI-RS configurations with a zero transmission power may be the reference configuration for implicit derivation of the number of DM-RS antenna ports, section 0064 Nazar); and performing channel measurements (see, WTRU may then be configured via higher layer signaling with one or multiple CSI-RS configurations to perform channel measurement, section 00780 Nazar) based on the one or more non-zero power CSI- RS ports (see, CSI-RS configuration with a non-zero transmission power is the reference configuration for implicit derivation of the number of DM-RS antenna ports, section 0064 Nazar). In view of the above, it would have been obvious before the effective filling date of the claim invention to a person having ordinary skill in the art of which the claimed invention pertains to modify the method of Ramireddy with the zero and non-zero power CSI-RS ports as taught by Nazar. The motivation would have been to better schedule resources between transmission points in wireless communications. Conclusion THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to PATRICK YIPAO PEI whose telephone number is (703)756-1890. The examiner can normally be reached Monday - Friday 9:30 AM to 5:30 PM ET. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Kwang Yao can be reached at (571) 272-3182. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /PATRICK YIPAO PEI/Examiner, Art Unit 2473 /KWANG B YAO/Supervisory Patent Examiner, Art Unit 2473
Read full office action

Prosecution Timeline

Jan 10, 2023
Application Filed
May 28, 2025
Non-Final Rejection mailed — §102, §103
Aug 25, 2025
Response Filed
Dec 02, 2025
Final Rejection mailed — §102, §103
Feb 02, 2026
Response after Non-Final Action
Apr 30, 2026
Request for Continued Examination
May 07, 2026
Response after Non-Final Action

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12621872
RANDOM ACCESS
2y 6m to grant Granted May 05, 2026
Patent 12588015
HYBRID AUTOMATIC REPEAT REQUEST IDENTIFIER DETERMINATION ASSOCIATED WITH CROSS-LINK INTERFERENCE MEASUREMENTS
3y 0m to grant Granted Mar 24, 2026
Patent 12557078
DYNAMIC, MULTI-FREQUENCY SUPERFRAME SLOTTING
2y 5m to grant Granted Feb 17, 2026
Patent 12538299
METHOD AND APPARATUS FOR MEASURING AND REPORTING INTERFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEMS
3y 6m to grant Granted Jan 27, 2026
Patent 12520291
SYSTEMS AND METHODS FOR MANAGING TRANSMISSION INDICATION IN MULTICAST AND BROADCAST COMMUNICATIONS
3y 3m to grant Granted Jan 06, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

2-3
Expected OA Rounds
81%
Grant Probability
99%
With Interview (+30.8%)
3y 0m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 21 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month