Abhay Kumar Sah

Global Patents

1. S.K. Vankayala, R. Gundeti, Abhay Kumar Sah, A. Nigam, G.S.V. Umakishore, A. Kaithara, Joseph, S. Yoon, “Method and system for hierarchical decoding of data packets in cellular communication system” (WO2021080383A1).

2. S.K. Vankayala, Abhay Kumar Sah, A. Nigam, G.S.V. Uma, and T. Mittra, “Method and apparatus for enabling optimized decoding of data packet in harq based communication” (WO2021075888A1).

3. S.K. Vankayala, R. Gundeti, Abhay Kumar Sah, I. Kommineni, A. Nigam, S. Shetty, and G.S.V. Uma, “Methods and systems for optimizing computation of log-likelihood ratio (LLR) for decoding modulated symbols” (US20230042213A1). Granted

4. S.K. Vankayala, S. Madhurapantula, A. Nigam, A. Bhat, Abhay Kumar Sah, and Sudharsan Parthasarthy, “Method and system for channel quality status prediction in wireless network using machine learning” (US20220278728A1). Granted

5. S.K. Vankayala, J. Akhtar, Abhay Kumar Sah, N. Srinivasan, G.S.V. Uma, and R. Gundeti, “Methods and Systems for Detecting Primary Synchronization Signal (PSS) in a Wireless Network” (US20200313783A1). Granted

6. S.K. Vankayala, J. Akhtar, Abhay Kumar Sah, N. Srinivasan, G.S.V. Uma, and R. Gundeti, “Methods and Systems for Detecting Primary Synchronization Signal (PSS) in a Wireless Network” (EP3949181A4). Granted

National Patents

7. Abhay Kumar Sah, Shweta Rai, and Adarsh Patel, “A method for establishing the synchronization between multiple APs” (To file).

8. Abhay Kumar Sah, Santosh K. Singh, and Lokesh Patidar, “CSIRS design method for channel estimation and pre-coding processes in multi-connected cell-free network” (20251105154).

9. Abhay Kumar Sah and Debajit Choudhury, “A Methods for automatic modulation selection and recognition for the modern radio access networks” (202411081569)

10. Abhay Kumar Sah and Santosh K. Singh, “A grant-free random access method for cell-free networks” (202311045133/583614). Granted

11. S.K. Awasthi and Abhay Kumar Sah, “A system and method for estimating the location of a base station using RSSI available on the mobile station” (202211054392/580815). Granted

12. S.K. Vankayala, Abhay Kumar Sah, and G.S.V. Uma, “Hierarchical Coordinated Multi-point Processing for Uplink in 4G/5G/VRAN Systems” (201941043247).

13. Abhay Kumar Sah, S.K. Vankayala, and G.S.V. Uma, “Power Efficient and Low Complexity Receiver for a Wireless Communication and its Operating Method Thereof” (202041013448/482643). Granted

14. S.K. Vankayala, R. Gundeti, Abhay Kumar Sah, I. Kommineni, A. Nigam, S. Shetty, and G.S.V. Uma, “A Novel Iterative Method for LLR” (202041014792/475774). Granted

15. S.K. Vankayala, Abhay Kumar Sah, A. Nigam, G.S.V. Uma, and T. Mittra “Method for Optimal HARQ Chase Combining for 4G/5G/VRAN/CRAN Systems” (201941042232).

16. S.K. Vankayala, S. Madhurapantula, A. Nigam, A. Bhat, Abhay Kumar Sah, and Sudharsan Parthasarthy, “Base Station CQI prediction using ML” (201941047831/483330). Granted

17. Abhay Kumar Sah, S. K. Vankayala, Uma Kishore Godavarti, and Ashok K. Reddy Chavva, “Method and system for combining incoming signals” (202041004871).

18. S.K. Vankayala, J. Akhtar, Abhay Kumar Sah, N. Srinivasan, G.S.V. Uma, and R. Gundeti, “Methods and Systems for Detecting Primary Synchronization Signal (PSS) in a Wireless Network” (201941013045).

19. Abhay Kumar Sah and A.K. Chaturvedi, “Low Complexity Detection in Multiple Input Multiple Output Systems” (201811029113/518912). Granted

20. Abhay Kumar Sah and A.K. Chaturvedi, “A Neighborhood Search based Large Multiple Input Multiple Output Detector” (201811029143/478273). Granted

TOPIC	START DATE	FIELD	DESCRIPTION	FINANCIAL OUTLAY	FUNDING AGENCY	OTHER OFFICERS
Intelligent Scheduler for Cell-Free Massive MIMO based 6G Networks	01 Apr 2026	AI/ML for Wireless Networks		230 Lakhs	Anusandhan National Research Foundation, DST, India	Prof. A. Patel, IIT Mandi
RIS-enabled Hybrid RF/VLC System for Improving QoE	16 Mar 2025	Hybrid RF/VLC System		229.11 Lakhs	TCOE, Department of Telecommunications, New Delhi, India	Prof. Sandeep Kumar Singh
Inter-AP Co-ordinated Cell-Free 6G Communication for Ubiquitous Connectivity Nov	01 Oct 2025	6G Networks		201.45 Lakhs	TCOE, Department of Telecommunications, New Delhi, India	Prof. A. Patel, IIT Mandi
Cell-Free 6G Access Points	01 Oct 2024	6G Networks		82 Lakhs	C-DoT, Department of Telecommunications, New Delhi, India	Prof. A. Patel, IIT Mandi
System Level Simulation of CF Massive MIMO for Use in 6G	01 Nov 2023	6G Communication		35.5 Lakhs	MathWorks Inc., USA, India	None
Power-on Pilot IC for Ultra-low Power Wireless IoT Devices	01 Jul 2025	IoT Devices		411 Lakhs	Meity, SRIC, IIT Roorkee, IIIT Bangalore, NIT Uttarakhand, NIT Goa, India	Prof. S. Dasgupta and others
5G Technology & IoT	01 Jan 2024	5G & IoT		NA	Coursera, United States Of America	Prof. M. Rawat, Prof. E. Sharma, Prof. S. Khanna, Prof. D. Kumar
Realizing Cell-Free Massive MIMO for Beyond 5G Systems	14 Jan 2022	6G Communication		32.59 Lakhs	Startup Research Grant, SERB, New Delhi, India	None
Deep Learning for Ultra Massive MIMO Systems	23 Sep 2021	Intelligent Wireless Systems		20 Lakhs	Faculty Initiation Grant, SRIC, IIT Roorkee, India	None
Demystifying CF Communication for 6G&B Systems	01 May 2023	6G Communications		6.64 Lakhs	Karyashala, SERB, New Delhi, India
Co-existence of CF Massive MIMO with B5G Technologies	01 May 2023	6G Communications		1.5 Lakhs	Vritika, SERB, New Delhi, India
5G Use Case Lab	01 Oct 2023	5G Communications		90 Lakhs	TCIL, New Delhi, India	Prof. E. Sharma and others
THz Characterization System	01 Oct 2022	THz Communications		650 Lakhs	SMILE, SRIC, IIT Roorkee, India	Prof. N. P Pathak and others