Prosecution Insights
Last updated: April 19, 2026
Application No. 18/096,973

SRS ENHANCEMENTS FOR COHERENT JOINT TRANSMISSIONS

Non-Final OA §103
Filed
Jan 13, 2023
Examiner
DEAN, RAYMOND S
Art Unit
2645
Tech Center
2600 — Communications
Assignee
Samsung Electronics Co., Ltd.
OA Round
3 (Non-Final)
70%
Grant Probability
Favorable
3-4
OA Rounds
3y 1m
To Grant
85%
With Interview

Examiner Intelligence

Grants 70% — above average
70%
Career Allow Rate
618 granted / 883 resolved
+8.0% vs TC avg
Strong +15% interview lift
Without
With
+15.3%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
48 currently pending
Career history
931
Total Applications
across all art units

Statute-Specific Performance

§101
3.6%
-36.4% vs TC avg
§103
64.2%
+24.2% vs TC avg
§102
19.2%
-20.8% vs TC avg
§112
7.5%
-32.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 883 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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on February 2, 2026 has been entered. Response to Arguments Applicant’s arguments, see Applicants’ remarks, filed February 2, 2026, with respect to the rejection(s) of claim(s) 1 under 35 U.S.C. 103 have been fully considered and are persuasive. Therefore, the rejection has been withdrawn. However, upon further consideration, a new ground(s) of rejection is made in view of newly found prior art Yang et al. (US 2023/0239813). Yang, which also teaches power control, teaches wherein the pathloss leads to reduction in signal strength (Section 0054). Zhang, as detailed in the Office Action dated October 31, 2025, teaches measuring, by the UE, a signal characteristic (UL power control encompasses configuring power control parameters for SRS resource sets (Section 0036), this renders a scenario wherein power control parameters are updated based on the path loss, which is a signal characteristic (Section 0045)); updating, by the UE at least one of the one or more power control parameters based on measuring by the UE the signal characteristic to output an updated power control parameter (UL power control encompasses configuring power control parameters for SRS resource sets (Section 0036), this renders a scenario wherein power control parameters are updated based on the path loss, which is a signal characteristic (Section 0045)). The combination of Zhang and Yang teaches measuring, by the UE, a reduction in signal strength; updating, by the UE at least one of the one or more power control parameters based on measuring by the UE the reduction in signal strength to output an updated power control parameter. 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, 2, 8, 9 is/are rejected under 35 U.S.C. 103 as being unpatentable over Chen et al. (US 2020/0106647) in view of Zhang et al. (US 2019/0281588) and in further view of Yang et al. (US 2023/0239813) Regarding Claim 1, Chen teaches a method, comprising: determining, at a user equipment (UE), that a Sounding Reference Signal (SRS) resource is to be transmitted to a base station (gNB) (Section 0032, SRS to be transmitted to a network entity on the uplink via the BWP); in response to determining that the SRS resource is to be transmitted to the gNB, determining one or more power control parameters of the SRS resource (Sections 0070, 0071, power control parameter); transmitting the SRS resource with the determined one or more power control parameters to the gNB (Sections 0069). Cheng does not teach measuring, by the UE, a reduction in signal strength; updating, by the UE at least one of the one or more power control parameters based on measuring by the UE the reduction in signal strength to output an updated power control parameter, and transmitting the SRS resource based on the updated power control parameter. Zhang, which also teaches the use of SRSs, teaches measuring, by the UE, a signal characteristic (UL power control encompasses configuring power control parameters for SRS resource sets (Section 0036), this renders a scenario wherein power control parameters are updated based on the path loss, which is a signal characteristic (Section 0045)); updating, by the UE at least one of the one or more power control parameters based on measuring by the UE the signal characteristic to output an updated power control parameter (UL power control encompasses configuring power control parameters for SRS resource sets (Section 0036), this renders a scenario wherein power control parameters are updated based on the path loss, which is a signal characteristic (Section 0045)), and transmitting the SRS resource based on the updated power control parameter (power control parameters are updated based on the path loss (Section 0045), the SRS resource set will be transmitted based on said updated power control parameters). It would have been obvious to one of ordinary skill in the art prior to the effective filing date of the claimed invention to modify the system Chen with the above features of Zhang for the purpose of enhancing uplink beam management as taught by Zhang. Yang, which also teaches power control, teaches wherein the pathloss leads to reduction in signal strength (Section 0054). It would have been obvious to one of ordinary skill in the art prior to the effective filing date of the claimed invention to modify the system of the above Chen combination with the above features of Yang for the purpose of determining a transmit power level increase based at least in part on a failed transmission for a message having a deadline for reception at a target device as taught by Yang. The combination of then Chen combination with Yang teaches measuring, by the UE, a reduction in signal strength; updating, by the UE at least one of the one or more power control parameters based on measuring by the UE the reduction in signal strength to output an updated power control parameter. Regarding Claim 2, Chen combination teaches all of the claimed limitations recited in Claim 1. Chen further teaches in response to determining that the SRS resource is to be transmitted to the gNB, determining spatial relation information of the SRS resource (Section 0075). Regarding Claim 8, Chen combination teaches all of the claimed limitations recited in Claim 1. Chen does not teach updating of the one or more power control parameters include using a medium access control (MAC) control element (MAC-CE) or dynamic control element (DCI) for the updating. Zhang, which also teaches power control, teaches updating of the one or more power control parameters using a medium access control (MAC) control element (MAC-CE) or dynamic control element (DCI) for the updating (Section 0045). It would have been obvious to one of ordinary skill in the art prior to the effective filing date of the claimed invention to modify the system of the Chen with the above features of Zhang for the purpose enhancing uplink beam management as taught by Zhang. Regarding Claim 9, Chen combination teaches all of the claimed limitations recited in Claim 1. Chen further teaches wherein multiple options for the one or more power control parameters are configured for an SRS resource set that includes the SRS resource and wherein determining the one or more power control parameters of the SRS resource comprises selecting the one or more power control parameters from the multiple options for the one or more power control parameters that are configured for the resource set (Section 0072, multiple options for power control parameters). Claim(s) 3 is/are rejected under 35 U.S.C. 103 as being unpatentable over Chen et al. (US 2020/0106647) in view of Zhang et al. (US 2019/0281588) in view of Yang et al. (US 2023/0239813), as applied to Claim 1 set forth above, and in further view of Logothetis (US 2022/0312339) Regarding Claim 3, Chen combination teaches all of the claimed limitations recited in Claim 1. Chen combination does not teach wherein determining the one or more power control parameters of the SRS resource comprises determining a fractional power control multiplier. Logothetis, which also teaches the use of SRSs, teaches determining a fractional power control multiplier (Section 0081). It would have been obvious to one of ordinary skill in the art prior to the effective filing date of the claimed invention to modify the system of Chen combination with the above features of Logothetis for the purpose of compensating for the scan loss that occurs due to beamforming as taught by Logothetis. Claim(s) 4, 7 is/are rejected under 35 U.S.C. 103 as being unpatentable over Chen et al. (US 2020/0106647) in view of Zhang et al. (US 2019/0281588) in view of Yang et al. (US 2023/0239813) in view of Logothetis (US 2022/0312339), as applied to Claim 3 set forth above, and further in view of Wang et al. (US 2023/0140323) Regarding Claim 4, The above Chen combination teaches all of the claimed limitations recited in Claim 3. Chen further teaches a nominal UE transmit power (Sections 0071, power control parameter enables a nominal UE transmit power for an SRS resource). Chen combination does not teach wherein a nominal UE transmit power and a pathloss reference signal are configured for an SRS resource set that includes the SRS resource based on a worst transmission and reception point (TRP} transmission. Wang, which also teaches the use of SRSs, teaches a pathloss reference signal are configured for an SRS resource set that includes the SRS resource based on a worst transmission and reception point (TRP} transmission (Section 0161, TRP configures for uplink power control (ULPC), which occurs during changes in transmission conditions such as changes in the attenuation caused by noise and interference). It would have been obvious to one of ordinary skill in the art prior to the effective filing date of the claimed invention to modify the system of the Chen combination with the above features of Wang for the purpose of providing intercell beam failure recovery as taught by Wang. Regarding Claim 7, The above Chen combination teaches all of the claimed limitations recited in Claim 6. Chen does not teach wherein a single pathloss reference signal and a single fractional power control multiplier are configured for an SRS resource set that includes the SRS resource. Wang, which also teaches the use of SRSs, teaches a single pathloss reference signal configured for an SRS resource (Section 0161). It would have been obvious to one of ordinary skill in the art prior to the effective filing date of the claimed invention to modify the system of the Chen combination with the above features of Wang for the purpose of providing intercell beam failure recovery as taught by Wang. Logothetis, which also teaches the use of SRSs, teaches a single fractional power control multiplier configured for an SRS resource (Section 0081). It would have been obvious to one of ordinary skill in the art prior to the effective filing date of the claimed invention to modify the system of Chen combination with the above features of Logothetis for the purpose of compensating for the scan loss that occurs due to beamforming as taught by Logothetis. Claim(s) 6 is/are rejected under 35 U.S.C. 103 as being unpatentable over Chen et al. (US 2020/0106647) in view of Zhang et al. (US 2019/0281588) in view of Yang et al. (US 2023/0239813) and further in view of Wang et al. (US 2023/0140323) Regarding Claim 6, Chen combination teaches all of the claimed limitations recited in Claim 1. Chen combination does not teach determining a nominal UE transmit power for a TRP transmission. Wang, which also teaches the use of SRSs, teaches determining a nominal UE transmit power for a TRP transmission (Section 0161, ULPC for SRS on the uplink to TRP comprises a nominal transmission power). It would have been obvious to one of ordinary skill in the art prior to the effective filing date of the claimed invention to modify the system of the Chen combination with the above features of Wang for the purpose of providing intercell beam failure recovery as taught by Wang. Claim(s) 10, 11, 14 – 16 is/are rejected under 35 U.S.C. 103 as being unpatentable over Chen et al. (US 2020/0106647) in view of Zhang et al. (US 2019/0281588) in view of Yang et al. (US 2023/0239813) in view of Wang et al. (US 2023/0140323) and in further view of Kim et al. (US 2020/0280465) Regarding Claim 10, Chen combination teaches all of the claimed limitations recited in Claim 1. Chen combination does not teach wherein the SRS resource is shared between a first TRP transmission and a second TRP transmission, wherein the UE applies an Orthogonal Cover Code (OCC) to the SRS to maintain orthogonality in use of the SRS resource between the first TRP transmission and the second TRP transmission. Wang, which also teaches the use of SRSs, teaches a first TRP transmission and a second TRP transmission (Section 0156, multi-TRP operation renders a scenario of a first TRP transmission and a second TRP transmission). It would have been obvious to one of ordinary skill in the art prior to the effective filing date of the claimed invention to modify the system of the Chen combination with the above features of Wang for the purpose of providing intercell beam failure recovery as taught by Wang. Chen combination does not teach wherein the SRS resource is shared and wherein the UE applies an Orthogonal Cover Code (OCC) to the SRS to maintain orthogonality in use of the SRS resource Kim, which also teaches the use of SRSs, teaches wherein the SRS resource is shared (Sections 0099 – 0100, OCC enables sharing of the SRS resource) and wherein the UE applies an Orthogonal Cover Code (OCC) to the SRS to maintain orthogonality in use of the SRS resource (Section 0099 – 0100). It would have been obvious to one of ordinary skill in the art prior to the effective filing date of the claimed invention to modify the system of the Chen combination with the above features of Kim for the purpose of enhancing channel estimation as taught by Kim. Regarding Claim 11, Chen combination teaches all of the claimed limitations recited in Claim 10. Chen combination does not teach wherein the first TRP transmission is sent from the UE to a particular TRP and the second TRP transmission is sent from a second UE to the particular TRP. Wang, which also teaches the use of SRSs, teaches wherein the first TRP transmission is sent from the UE to a particular TRP and the second TRP transmission is sent from a second UE to the particular TRP (Section 0156, multi-TRP transmission renders a plurality of scenarios such as a scenario of a first transmission sent to a particular TRP from a first UE and a second transmission sent from a second UE to the particular TRP). It would have been obvious to one of ordinary skill in the art prior to the effective filing date of the claimed invention to modify the system of the Chen combination with the above features of Wang for the purpose of providing intercell beam failure recovery as taught by Wang. Regarding Claim 14, Chen combination teaches all of the claimed limitations recited in Claim 11. Chen combination does not teach wherein a third TRP transmission sent is sent from the UE to a second TRP, wherein the third TRP transmission is sent using the SRS resource, wherein a comb structure, frequency hopping, or resource block-level partial frequency sounding structure is used to provide orthogonality between the third TRP transmission and the first TRP transmission. Wang, which also teaches the use of SRSs, teaches wherein a third TRP transmission sent is sent from the UE to a second TRP (Section 0156, multi-TRP transmission renders a plurality of scenarios such as a scenario of a third TRP transmission sent is sent from the UE to a second TRP). It would have been obvious to one of ordinary skill in the art prior to the effective filing date of the claimed invention to modify the system of the Chen combination with the above features of Wang for the purpose of providing intercell beam failure recovery as taught by Wang. Chen combination does not teach wherein a transmission is sent using the SRS resource, wherein a comb structure, frequency hopping, or resource block-level partial frequency sounding structure is used to provide orthogonality between the transmission and another transmission Kim, which also teaches the use of SRSs, teaches wherein a transmission is sent using the SRS resource, wherein a comb structure, frequency hopping, or resource block-level partial frequency sounding structure is used to provide orthogonality between the transmission and another transmission (Section 0099). It would have been obvious to one of ordinary skill in the art prior to the effective filing date of the claimed invention to modify the system of the Chen combination with the above features of Kim for the purpose of enhancing channel estimation as taught by Kim. Regarding Claim 15, Chen combination teaches all of the claimed limitations recited in Claim 10. Chen combination does not teach wherein the first TRP transmission is sent from the UE to a first TRP and the second TRP transmission is sent from the UE to a second TRP. Wang, which also teaches the use of SRSs, teaches wherein the first TRP transmission is sent from the UE to a first TRP and the second TRP transmission is sent from the UE to a second TRP (Section 0156, multi-TRP transmission renders a plurality of scenarios such as a scenario of the first TRP transmission is sent from the UE to a first TRP and the second TRP transmission is sent from the UE to a second TRP). It would have been obvious to one of ordinary skill in the art prior to the effective filing date of the claimed invention to modify the system of the Chen combination with the above features of Wang for the purpose of providing intercell beam failure recovery as taught by Wang. Regarding Claim 16, Chen combination teaches all of the claimed limitations recited in Claim 10. Chen further teaches wherein the UE configures the SRS for transmission in response to receiving an indication of the setting of the SRS from the network entity (Section 0032). Chen combination does not teach wherein the UE applies the OCC to the SRS in response to receiving an indication from the gNB. Kim, which also teaches the use of SRSs, teaches wherein the UE applies the OCC to the SRS (Sections 0099 – 0100). It would have been obvious to one of ordinary skill in the art prior to the effective filing date of the claimed invention to modify the system of the Chen combination with the above features of Kim for the purpose of enhancing channel estimation as taught by Kim. The combination of Chen and Kim teaches wherein the UE applies the OCC to the SRS in response to receiving an indication from the gNB. Claim(s) 12, 13 is/are rejected under 35 U.S.C. 103 as being unpatentable over Chen et al. (US 2020/0106647) in view of Zhang et al. (US 2019/0281588) in view of Yang et al. (US 2023/0239813) in view of Wang et al. (US 2023/0140323) in view of Kim et al. (US 2020/0280465) and in further view of Chen et al. (US 2015/0327263), hereafter Chen263 Regarding Claim 12, The Chen combination teaches all of the claimed limitations recited in Claim 11. Chen combination does not teach wherein a third TRP transmission sent is sent from the UE to a second TRP, wherein the third TRP transmission is sent using a second resource comprising a same SRS base sequence as the SRS resource, wherein a cyclic shift is applied to the SRS base sequence for the third TRP transmission such that the second resource and the SRS resource are orthogonal. Wang, which also teaches the use of SRSs, teaches wherein a third TRP transmission sent is sent from the UE to a second TRP (Section 0156, multi-TRP transmission renders a plurality of scenarios such as a scenario of a third TRP transmission sent is sent from the UE to a second TRP). It would have been obvious to one of ordinary skill in the art prior to the effective filing date of the claimed invention to modify the system of the Chen combination with the above features of Wang for the purpose of providing intercell beam failure recovery as taught by Wang. Chen combination does not teach wherein a transmission is sent using a second resource comprising a same SRS base sequence as the SRS resource, wherein a cyclic shift is applied to the SRS base sequence for the third TRP transmission such that the second resource and the SRS resource are orthogonal. Chen263, which also teaches the use of SRSs, teaches wherein a transmission is sent using a second resource comprising a same SRS base sequence as the SRS resource, wherein a cyclic shift is applied to the SRS base sequence for the third TRP transmission such that the second resource and the SRS resource are orthogonal (Section 0050). It would have been obvious to one of ordinary skill in the art prior to the effective filing date of the claimed invention to modify the system of the Chen combination with the above features of Chen263 for the purpose of providing TDD communications thus optimizing spectrum usage as taught by Chen263. Regarding Claim 13, The Chen combination teaches all of the claimed limitations recited in Claim 11. Chen combination does not teach wherein a third TRP transmission sent is sent from the UE to a second TRP, wherein the third TRP transmission is sent using a second resource comprising a different SRS base sequence as the SRS resource. Wang, which also teaches the use of SRSs, teaches wherein a third TRP transmission sent is sent from the UE to a second TRP (Section 0156, multi-TRP transmission renders a plurality of scenarios such as a scenario of a third TRP transmission sent is sent from the UE to a second TRP). It would have been obvious to one of ordinary skill in the art prior to the effective filing date of the claimed invention to modify the system of the Chen combination with the above features of Wang for the purpose of providing intercell beam failure recovery as taught by Wang. Chen combination does not teach wherein a transmission is sent using a second resource comprising a different SRS base sequence as the SRS resource. Chen263, which also teaches the use of SRSs, teaches wherein a transmission is sent using a second resource comprising a different SRS base sequence as the SRS resource (Section 0050, a shift in the SRS base sequence renders a different SRS bases sequence). It would have been obvious to one of ordinary skill in the art prior to the effective filing date of the claimed invention to modify the system of the Chen combination with the above features of Chen263 for the purpose of providing TDD communications thus optimizing spectrum usage as taught by Chen263. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to RAYMOND S DEAN whose telephone number is (571)272-7877. The examiner can normally be reached Monday-Friday, 6:00-2:30, EST. 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, Anthony S Addy can be reached at 571-272-7795. 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. /RAYMOND S DEAN/ Primary Examiner, Art Unit 2645 Raymond S. Dean February 18, 2026
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Prosecution Timeline

Jan 13, 2023
Application Filed
Jun 27, 2025
Non-Final Rejection — §103
Oct 01, 2025
Response Filed
Oct 21, 2025
Applicant Interview (Telephonic)
Oct 21, 2025
Examiner Interview Summary
Oct 29, 2025
Final Rejection — §103
Jan 26, 2026
Examiner Interview Summary
Jan 26, 2026
Applicant Interview (Telephonic)
Feb 02, 2026
Request for Continued Examination
Feb 10, 2026
Response after Non-Final Action
Feb 18, 2026
Non-Final Rejection — §103 (current)

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Prosecution Projections

3-4
Expected OA Rounds
70%
Grant Probability
85%
With Interview (+15.3%)
3y 1m
Median Time to Grant
High
PTA Risk
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