Prosecution Insights
Last updated: July 17, 2026
Application No. 18/458,599

PHYSICAL BROADCAST CHANNEL PBCH RECEIVING METHOD AND APPARATUS

Final Rejection §103
Filed
Aug 30, 2023
Priority
Mar 03, 2021 — CN 202110237240.3 +2 more
Examiner
NGUYEN, BAO G
Art Unit
2461
Tech Center
2400 — Computer Networks
Assignee
Huawei Technologies Co., Ltd.
OA Round
2 (Final)
74%
Grant Probability
Favorable
3-4
OA Rounds
4m
Est. Remaining
78%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allowance Rate
265 granted / 360 resolved
+15.6% vs TC avg
Minimal +4% lift
Without
With
+4.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
35 currently pending
Career history
414
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
91.8%
+51.8% vs TC avg
§102
4.0%
-36.0% vs TC avg
§112
1.6%
-38.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 360 resolved cases

Office Action

§103
DETAILED ACTION 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 . Claim Rejections - 35 USC § 103 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. Claim(s) 1, 3-4, 6, 9, 11, 15, 17-18, 20, 22-23 is/are rejected under 35 U.S.C. 103 as being unpatentable over Jung (US20210377883) in view of Astrom (WO/2018/172044). Regarding claim 1 and 15, Jung teaches A downlink channel transmission method, performed at a terminal device, wherein the method comprises: separately receiving, on different time domain resources of at least two first channels, the at least two first channels, wherein (interpreted as receiving a second SS/PBCH block from the base station after receiving the first SS/PBCH block, see para [0006]) the at least two first channels are sent on a same frequency domain resource and correspondingly on the different time domain resources, and (interpreted as The PBCH included in the SS/PBCH block may be configured in the second symbol (e.g., symbol #(n+1)), the third symbol (e.g., symbol #(n+2)), and the fourth symbol (e.g., symbol #(n+3)) among the four symbols. The position in which the SS/PBCH block can be transmitted may be preconfigured as follows, see para [0083]. Also see same frequency used for PBCHs fig. 9) performing combination processing on the at least two first channels separately received on the different frequency domain resources. (interpreted as identify information included in the first SS/PBCH block and the second SS/PBCH block by performing a combining operation on the first SS/PBCH block and the second SS/PBCH block, see para [0020]) However Jung does not teach said separately receiving the at least two first channels comprises separately receiving the at least two first channels correspondingly on different frequency domain resources; first two channels carry same information; Astrom teaches said separately receiving the at least two first channels comprises separately receiving the at least two first channels correspondingly on different frequency domain resources; first two channels carry same information; and (interpreted as a first sub-band signal is received at a first frequency and over a predetermined time duration equal to the SSB repetition period. This sub-band signal is stored. The radio network device receiver then shifts its reception frequency and receives a second sub-band signal over a the same duration. The timing of the reception iterations is determined by the defined repetition rate of the SSB, see pg 3 line 35-40. Also see combine the plurality of sub-band signals to obtain combined signal over the full sync signal bandwidth; and process the combined signal to detect a sync signal and attempt synchronization with a wireless communication network pg 3 line 50-60) It would have been obvious to one of ordinary skill in the art before the effective filing date of the invention to modify the reception as taught by Jung with the reception over multiple subbands for narrowband receivers as taught by Astrom with the motivation being to receive the complete wideband signal. Regarding claim 9, Jung teaches downlink channel transmission method, performed at a network device, wherein the method comprises: sending the at least two first channels on a same frequency domain resource and correspondingly on different time-frequency resources of the at least two first channels. (interpreted as The PBCH included in the SS/PBCH block may be configured in the second symbol (e.g., symbol #(n+1)), the third symbol (e.g., symbol #(n+2)), and the fourth symbol (e.g., symbol #(n+3)) among the four symbols. The position in which the SS/PBCH block can be transmitted may be preconfigured as follows, see para [0083]. Also see same frequency used for PBCHs fig. 9) However does not teach sending first information, wherein the first information indicates that at least two first channels carry same information; Astrom teaches sending first information, wherein the first information indicates that at least two first channels carry same information; (interpreted as performed by a radio network device having a narrowband receiver, of receiving and processing a periodic, wideband network sync signal. A candidate sync signal bandwidth and repetition pattern are identified, see pg 2 line 40-50 It would have been obvious to one of ordinary skill in the art before the effective filing date of the invention to modify the reception as taught by Jung with the reception of repetition information as taught by Astrom with the motivation being to receive the complete wideband signal using the repetition. Regarding claim 3 and 17, Jung teaches the method according to claim 1, however does not teach wherein a maximum channel bandwidth of the terminal device is less than a bandwidth of each of the at least two first channels. Astrom teaches wherein a maximum channel bandwidth of the terminal device is less than a bandwidth of each of the at least two first channels. (interpreted as a first sub-band signal is received at a first frequency and over a predetermined time duration equal to the SSB repetition period. This sub-band signal is stored. The radio network device receiver then shifts its reception frequency and receives a second sub-band signal over a the same duration. The timing of the reception iterations is determined by the defined repetition rate of the SSB, see pg 3 line 35-40. Also see combine the plurality of sub-band signals to obtain combined signal over the full sync signal bandwidth; and process the combined signal to detect a sync signal and attempt synchronization with a wireless communication network pg 3 line 50-60) It would have been obvious to one of ordinary skill in the art before the effective filing date of the invention to modify the reception as taught by Jung with the reception over multiple subbands for narrowband receivers as taught by Astrom with the motivation being to receive the complete wideband signal. Regarding claim 4 and 11 and 18, Jung teaches the method according to claim 1, wherein the at least two first channels are at least two first physical broadcast channels (PBCHs). (interpreted as identify information included in the first SS/PBCH block and the second SS/PBCH block by performing a combining operation on the first SS/PBCH block and the second SS/PBCH block, see para [0020]) Regarding claim 6 and 20, Jung teaches the method according to claim 1, however does not teach wherein the at least two first channels are at least two first physical downlink shared channels (PDSCHs), and the at least two first PDSCHs carry a same system information block (SIB). Astrom teaches wherein the at least two first channels are at least two first physical downlink shared channels (PDSCHs), and the at least two first PDSCHs carry a same system information block (SIB). (interpreted as the Physical Downlink Shared Channel (PDSCHSIB) provides the remaining required parts of the minimum system information necessary for a radio network device to communicate with the network; however, the PDSCHSIB is not part of the SSB. The PDSCHSIB may be transmitted in resources indicated by PBCH, see pg 2 line 1-10) It would have been obvious to one of ordinary skill in the art before the effective filing date of the invention to modify the reception as taught by Jung with the reception of repetition information as taught by Astrom with the motivation being to transmit system information necessary for communication with the network. Regarding claim 22, Jung teaches the method according to claim 1, however does not teach further comprising: before said separately receiving the at least two first channels, performing re-modulation to determine the different frequency domain resources on which the at least two first channels are to be separately received. Astrom teaches further comprising: before said separately receiving the at least two first channels, performing re-modulation to determine the different frequency domain resources on which the at least two first channels are to be separately received. (interpreted as From these, the relation between an offset in frequency and its corresponding time domain representation may be expressed as: f(t)e o F{2nf -2nf«) Hence, a time domain signal f(t) may be frequency translated by multiplying the signal with a complex value e, where fo represents the amount of frequency translation to be done and t represents the sampling instants of the time signals. This relationship is also used to frequency-translate received and stored sub-band signal for assembly into a combined broadband signal, as further described herein, see pg 2 line 25-35) It would have been obvious to one of ordinary skill in the art before the effective filing date of the invention to modify the reception as taught by Jung with the frequency offset as taught by Astrom with the motivation being to receive the complete wideband signal using the repetition. Regarding claim 23, Jung teaches the method according to claim 1, however does not teach wherein each of the different frequency domain resources on which the at least two first channels are separately received is narrower than the same frequency domain resource on which the at least two first channels are sent, and a combination of the different frequency domain resources on which the at least two first channels are separately received covers the same frequency domain resource on which the at least two first channels are sent. Astrom teaches wherein each of the different frequency domain resources on which the at least two first channels are separately received is narrower than the same frequency domain resource on which the at least two first channels are sent, and a combination of the different frequency domain resources on which the at least two first channels are separately received covers the same frequency domain resource on which the at least two first channels are sent. (interpreted as performed by a radio network device having a narrowband receiver, of receiving and processing a periodic, wideband network sync signal. A candidate sync signal bandwidth and repetition pattern are identified, see pg 2 line 40-50 It would have been obvious to one of ordinary skill in the art before the effective filing date of the invention to modify the reception as taught by Jung with the reception of repetition information as taught by Astrom with the motivation being to receive the complete wideband signal using the repetition. Claim(s) 5, 7, 12-13, 19 is/are rejected under 35 U.S.C. 103 as being unpatentable over Jung (US20210377883) in view of Astrom (WO/2018/172044) and Lo (Pub No 20220256571) Regarding claim 5 and 12 and 19, Jung teaches the method according to claim 1, wherein the at least two first channels are at least two first physical downlink control channels (PDCCHs), and the at least two first PDCCHs carry downlink control information (DCI) for scheduling a system information block (SIB). (interpreted as When the DRSs are actually transmitted in the N DRS candidates among the M DRS candidates, the base station may inform the terminal of N. N may be indicated by an SS/PBCH block (e.g., PBCH payload) and/or RMSI included in the DRS. Alternatively, N may be transmitted through an RRC message and/or a physical downlink control channel (PDCCH) (e.g., downlink control information (DCI)). The terminal may estimate the number of DRSs actually transmitted based on N, see para [0126]) However Jung in view of Astrom do not teach same downlink control information (DCI) Lo teaches same downlink control information (DCI) (interpreted as The first PDCCH could deliver or carry a Downlink Control Information (DCI) with same scheduling information as DCI delivered or carried by the second PDCCH, see para [0269]. Also see DCI Formats for Scheduling of PDSCH, see para [0056]) It would have been obvious to one of ordinary skill in the art before the effective filing date of the invention to combine the system as taught by Jung in view of Astrom with PDSCH scheduled by DCI of the PDCCH as taught by Lo with the motivation being to improve reliability and performance by transmitting the same data over different resources. Regarding claim 7 and 13, Jung in view of Astrom teaches the method according to claim 6, however they do not teach wherein scheduling information of one of the at least two first PDSCHs is carried in downlink control information (DCI) of a first physical downlink control channels (PDCCH). Lo teaches wherein scheduling information of one of the at least two first PDSCHs is carried in downlink control information (DCI) of a first physical downlink control channels (PDCCH). (interpreted as The first PDCCH could deliver or carry a Downlink Control Information (DCI) with same scheduling information as DCI delivered or carried by the second PDCCH, see para [0269]. Also see DCI Formats for Scheduling of PDSCH, see para [0056]) It would have been obvious to one of ordinary skill in the art before the effective filing date of the invention to combine the system as taught by Jung in view of Astro with PDSCH scheduled by DCI of the PDCCHas taught by Lo with the motivation being to improve reliability and performance by transmitting the same data over different resources. Claim(s) 8, 14 is/are rejected under 35 U.S.C. 103 as being unpatentable over Jung (US20210377883) in view of Astrom (WO/2018/172044), Lo (Pub No 20220256571), and Zhang (Pub No 20190356546). Regarding claim 8 and 14, Jung teaches the method according to claim 6, wherein scheduling information of one of the at least two first PDSCHs is carried in downlink control information (DCI) of a second physical downlink control channels (PDCCH), and at least one of a bandwidth of the second PDCCH is less than or equal to a maximum channel bandwidth of the terminal device, or a bandwidth of a control resource set for transmitting the second PDCCH is less than or equal to the maximum channel bandwidth of the terminal device. Lo teaches wherein scheduling information of one of the at least two first PDSCHs is carried in downlink control information (DCI) of a first physical downlink control channels (PDCCH). (interpreted as The first PDCCH could deliver or carry a Downlink Control Information (DCI) with same scheduling information as DCI delivered or carried by the second PDCCH, see para [0269]. Also see DCI Formats for Scheduling of PDSCH, see para [0056]) It would have been obvious to one of ordinary skill in the art before the effective filing date of the invention to combine the system as taught by Jung in view of Astrom with PDSCH scheduled by DCI of the PDCCH as taught by Lo with the motivation being to improve reliability and performance by transmitting the same data over different resources. However Jung in view of Astrom and Lo do not teach and at least one of a bandwidth of the second PDCCH is less than or equal to a maximum channel bandwidth of the terminal device, or a bandwidth of a control resource set for transmitting the second PDCCH is less than or equal to the maximum channel bandwidth of the terminal device. Zhang teaches and at least one of a bandwidth of the second PDCCH is less than or equal to a maximum channel bandwidth of the terminal device, or a bandwidth of a control resource set for transmitting the second PDCCH is less than or equal to the maximum channel bandwidth of the terminal device. (interpreted as when the terminal is in the narrow-bandwidth receiving mode, schedule a PDSCH including downlink data for the terminal in the PDCCH on the narrow bandwidth, the downlink data being less than a preset capacity, see para [0223] see fig. 5) It would have been obvious to one of ordinary skill in the art before the effective filing date of the invention to combine the system as taught by Jung in view of Astrom with PDCCH bandwidth as taught by Zhang with the motivation being to receive the PDCCH within the narrow bandwidth. Claim(s) 21 is/are rejected under 35 U.S.C. 103 as being unpatentable over Jung (US20210377883) in view of Astrom (WO/2018/172044), Kerhuel (Pub No 20200196254) Regarding claim 21, Jung teaches the method according to claim 1, combing the received at least two first channels (interpreted as identify information included in the first SS/PBCH block and the second SS/PBCH block by performing a combining operation on the first SS/PBCH block and the second SS/PBCH block, see para [0020]) However does not teach wherein said performing the combination processing on the at least two first channels comprises: demodulating the separately received at least two first channels to obtain at least two pieces of demodulation information, and then performing channel decoding after combining the at least two pieces of demodulation information, or performing channel estimation, channel equalization, demodulation, and channel decoding after combining the separately received at least two first channels, or separately performing channel estimation on the separately received at least two first channels to obtain at least two pieces of channel information, and then performing channel equalization, demodulation, and channel decoding after combining the at least two pieces of channel information, or separately performing channel estimation and channel equalization on the separately received at least two first channels to obtain at least two pieces of equalization information, and then performing demodulation and channel decoding after combining the at least two pieces of equalization information. Kerhuel teaches processing on the at least two first channels comprises: demodulating the separately received at least two first channels to obtain at least two pieces of demodulation information, and then performing channel decoding after combining the at least two pieces of demodulation information, or (rejected as being alternative limitation) performing channel estimation, channel equalization, demodulation, and channel decoding after combining the separately received at least two first channels, or (interpreted as As such, the PBCH decoding process includes: a PBCH channel estimation process (block 410); a PBCH equalization process (block 412) on the results of the PBCH channel estimation process; a demodulation process (block 414) following equalization, see para [0031]) separately performing channel estimation on the separately received at least two first channels to obtain at least two pieces of channel information, and then performing channel equalization, demodulation, and channel decoding after combining the at least two pieces of channel information, or(rejected as being alternative limitation) separately performing channel estimation and channel equalization on the separately received at least two first channels to obtain at least two pieces of equalization information, and then performing demodulation and channel decoding after combining the at least two pieces of equalization information. (rejected as being alternative limitation) It would have been obvious to one of ordinary skill in the art before the effective filing date of the invention to combine the pbch as taught by Jung in view of Astrom with decoding processes for pbch as taught by Lo with the motivation being to decode the received information. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). 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 BAO G NGUYEN whose telephone number is (571)272-7732. The examiner can normally be reached M-F 10pm - 6:30pm. 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, Huy Vu can be reached at 571-272-3155. 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. /BAO G NGUYEN/Examiner, Art Unit 2461 /HUY D VU/Supervisory Patent Examiner, Art Unit 2461
Read full office action

Prosecution Timeline

Aug 30, 2023
Application Filed
Oct 10, 2023
Response after Non-Final Action
Dec 29, 2025
Non-Final Rejection mailed — §103
Mar 26, 2026
Response Filed
Jun 23, 2026
Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12677306
INTERFERENCE MEASUREMENT REPORTING METHOD AND COMMUNICATIONS APPARATUS
4y 3m to grant Granted Jul 07, 2026
Patent 12665831
TRANSMISSION QUALITY DETECTION METHOD, APPARATUS, AND SYSTEM
3y 10m to grant Granted Jun 23, 2026
Patent 12659249
RECORDING PACKET LOSS IN A NETWORK
4y 4m to grant Granted Jun 16, 2026
Patent 12641595
TECHNIQUES FOR CONFIGURING SOFT RESOURCES IN MULTI-HOP INTEGRATED ACCESS AND BACKHAUL NETWORK
6y 7m to grant Granted May 26, 2026
Patent 12641483
REINFORCEMENT LEARNING BASED INTER-RADIO ACCESS TECHNOLOGY LOAD BALANCING UNDER MULTI-CARRIER DYNAMIC SPECTRUM SHARING
4y 4m to grant Granted May 26, 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

3-4
Expected OA Rounds
74%
Grant Probability
78%
With Interview (+4.0%)
3y 3m (~4m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 360 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