IP Library › Granted Patent US 12,256,401
Granted Patent B2
US 12,256,401 · App. 17/454,040 · Granted Mar 18, 2025

Indicating start and stop symbols of PDSCH and PUSCH through PDCCH

Inventors: Muhammad Nazmul Islam (Littleton, MA); Tao Luo (San Diego, CA); Sundar Subramanian (San Diego, CA); Bilal Sadiq (Basking Ridge, NJ); Juergen Cezanne (Ocean Township, NJ); Junyi Li (Fairless Hills, PA)
Assignee: QUALCOMM Incorporated
H04W72/23H04L5/0044H04L5/0048H04L5/0053H04L5/0091H04W72/21H04W76/27H04L5/0051H04L5/1469H04W88/02
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Quick Facts
Patent No.
US 12,256,401
App. No.
17/454,040
Granted
Mar 18, 2025
Kind
B2
Abstract

The present disclosure relates to wireless communication in mmW networks. The apparatus may be a base station. The apparatus may be configured to determine a first symbol index and a second symbol index associated with downlink resources allocated to a UE. The first symbol index may indicate when the downlink resources begin in a subframe, and the second symbol index may indicate when the downlink resources end in the subframe. The apparatus may be configured to transmit an indication of the first symbol index and the second symbol index to the UE.

Claims (50)

1. A method of wireless communication used in a millimeter wave (mmW) network, comprising:

utilizing a downlink frame structure from a number of preconfigured downlink frame structures for mmW transmissions, wherein each downlink frame structure of the number of preconfigured downlink frame structures has a different range of symbol indexes allocated as available downlink resources for downlink control;

determining a first symbol index and a second symbol index associated with the utilized downlink frame structure to be allocated to a user equipment (UE), the first symbol index indicating when downlink resources begin in a subframe and the second symbol index indicating when the downlink resources end in the subframe, wherein the downlink resources are associated with a physical downlink shared channel (PDSCH), wherein the PDSCH is dynamically scheduled via a physical downlink control channel (PDCCH), and wherein the PDSCH is directional; and

transmitting, to the UE, an indication of the first symbol index and the second symbol index, wherein the first symbol index and the second symbol index are indicated within a downlink control information (DCI) message.

2. The method of claim 1 , wherein the PDCCH is UE-specific and is transmitted in a directional manner.

3. The method of claim 1 , wherein the first symbol index and the second symbol index are respective start and stop symbol indices of the PDSCH located in a same subframe on which the PDCCH was transmitted.

4. The method of claim 1 , wherein the first symbol index and the second symbol index are respective start and stop symbol indices of the PDSCH located in a later subframe that follows a previous subframe on which the PDCCH was transmitted.

5. The method of claim 1 , wherein the first symbol index and the second symbol index are indicated via the PDCCH within the downlink control information (DCI) message, and wherein the DCI message is of a format that indicates start and stop symbol indices for the PDSCH.

6. The method of claim 1 , wherein the indication of the first symbol index and the second symbol index is transmitted via radio resource control (RRC) signaling.

7. The method of claim 1 , wherein the first symbol index ranges from 0 to 3, and the second symbol index ranges from 10 to 13.

8. The method of claim 1 , wherein the PDCCH indicates a symbol index on which a demodulation reference signal (DMRS) is to be transmitted.

9. An apparatus of wireless communication at a base station, the apparatus comprising:

a transceiver;

a memory; and

one or more processors coupled to the memory and the transceiver,

the one or more processors being configured to:

utilize a downlink frame structure from a number of preconfigured downlink frame structures for millimeter wave (mmW) transmissions, wherein each downlink frame structure of the number of preconfigured downlink frame structures has a different range of symbol indexes allocated as available downlink resources for downlink control;

determine a first symbol index and a second symbol index associated with the utilized downlink frame structure to be allocated to a user equipment (UE), the first symbol index indicating when downlink resources begin in a subframe and the second symbol index indicating when the downlink resources end in the subframe, wherein the downlink resources are associated with a physical downlink shared channel (PDSCH), wherein the PDSCH is dynamically scheduled via a physical downlink control channel (PDCCH), and wherein the PDSCH is directional; and

transmit, to the UE, via the transceiver, an indication of the first symbol index and the second symbol index, wherein the first symbol index and the second symbol index are indicated within a downlink control information (DCI) message.

10. The apparatus of claim 9 , wherein the PDCCH is UE-specific and is transmitted in a directional manner.

11. The apparatus of claim 9 , wherein the first symbol index and the second symbol index are respective start and stop symbol indices of the PDSCH located in a same subframe on which the PDCCH was transmitted.

12. The apparatus of claim 9 , wherein the first symbol index and the second symbol index are respective start and stop symbol indices of the PDSCH located in a later subframe that follows a previous subframe on which the PDCCH was transmitted.

13. The apparatus of claim 9 , wherein the first symbol index and the second symbol index are indicated via the PDCCH within the downlink control information (DCI) message, and wherein the DCI message is of a format that indicates start and stop symbol indices for the PDSCH.

14. The apparatus of claim 9 , wherein the indication of the first symbol index and the second symbol index is transmitted via radio resource control (RRC) signaling.

15. The apparatus of claim 9 , wherein the first symbol index ranges from 0 to 3, and the second symbol index ranges from 10 to 13.

16. The apparatus of claim 9 , wherein the PDCCH indicates a symbol index on which a demodulation reference signal (DMRS) is to be transmitted.

17. A method of wireless communication used in a millimeter wave (mmW) network, comprising:

utilizing an uplink frame structure from a number of preconfigured uplink frame structures for mmW transmissions, wherein each uplink frame structure of the number of preconfigured uplink frame structures has a different range of symbol indexes allocated as available uplink resources for uplink control;

determining a first symbol index and a second symbol index associated with the utilized uplink frame structure to be allocated to a user equipment (UE), the first symbol index indicating when uplink resources begin in a subframe and the second symbol index indicating when the uplink resources end in the subframe, wherein the uplink resources are associated with a physical uplink shared channel (PUSCH) that is dynamically and directionally scheduled via a physical downlink control channel (PDCCH); and

transmitting, to the UE, an indication of the first symbol index and the second symbol index, wherein the first symbol index and the second symbol index are indicated within a downlink control information (DCI) message.

18. The method of claim 17 , wherein the PDCCH is transmitted in a directional manner and indicates the first symbol index and the second symbol index.

19. The method of claim 17 , wherein the first symbol index and the second symbol index are respective start and stop symbol indices of the PUSCH located in a same subframe on which the PDCCH was transmitted.

20. The method of claim 17 , wherein the first symbol index and the second symbol index are respective start and stop symbol indices of the PUSCH located in a later subframe that follows a previous subframe on which the PDCCH was transmitted.

21. The method of claim 17 , wherein the first symbol index and the second symbol index are indicated via the PDCCH within the downlink control information (DCI) message, and wherein the DCI message is of a format that indicates start and stop symbol indices for the PUSCH.

22. The method of claim 17 , wherein the first symbol index ranges from 0 to 3, and the second symbol index ranges from 10 to 13.

23. The method of claim 17 , wherein the indication of the first symbol index and the second symbol index is transmitted via radio resource (RRC) signaling.

24. An apparatus of wireless communication at a base station, the apparatus comprising:

a transceiver;

a memory; and

one or more processors coupled to the memory and the transceiver,

the one or more processors being configured to:

utilize an uplink frame structure from a number of preconfigured uplink frame structures for mmW transmissions, wherein each uplink frame structure of the number of preconfigured uplink frame structures has a different range of symbol indexes allocated as available uplink resources for uplink control;

determine a first symbol index and a second symbol index associated with the utilized uplink frame structure to be allocated to a user equipment (UE), the first symbol index indicating when uplink resources begin in a subframe and the second symbol index indicating when the uplink resources end in the subframe, wherein the uplink resources are associated with a physical uplink shared channel (PUSCH) that is dynamically and directionally scheduled via a physical downlink control channel (PDCCH); and

transmit, to the UE, via the transceiver, an indication of the first symbol index and the second symbol index, wherein the first symbol index and the second symbol index are indicated within a downlink control information (DCI) message.

25. The apparatus of claim 24 , wherein the PDCCH is transmitted in a directional manner and indicates the first symbol index and the second symbol index.

26. The apparatus of claim 24 , wherein the first symbol index and the second symbol index are respective start and stop symbol indices of the PUSCH located in a same subframe on which the PDCCH was transmitted.

27. The apparatus of claim 24 , wherein the first symbol index and the second symbol index are respective start and stop symbol indices of the PUSCH located in a later subframe that follows a previous subframe on which the PDCCH was transmitted.

28. The apparatus of claim 24 , wherein the first symbol index and the second symbol index are indicated via the PDCCH within the downlink control information (DCI) message, and wherein the DCI message is of a format that indicates start and stop symbol indices for the PUSCH.

29. The apparatus of claim 24 , wherein the first symbol index ranges from 0 to 3, and the second symbol index ranges from 10 to 13.

30. The apparatus of claim 24 , wherein the indication of the first symbol index and the second symbol index is transmitted via radio resource (RRC) signaling.

Assignments (2)
CORRECTIVE ASSIGNMENT TO CORRECT THE COVER SHEET RECEIVING PARTY DATA STATE/COUNTRY SHOULD READ CA (NOT D.C.) PREVIOUSLY RECORDED ON REEL 58051 FRAME 896. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded May 8, 2024
From: ISLAM, MUHAMMAD NAZMUL; LUO, TAO; SUBRAMANIAN, SUNDAR; SADIQ, BILAL; CEZANNE, JUERGEN; LI, JUNYI
To: QUALCOMM INCORPORATED
Reel/Frame 067355/0595 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 8, 2021
From: ISLAM, MUHAMMAD NAZMUL; LUO, TAO; SUBRAMANIAN, SUNDAR; SADIQ, BILAL; CEZANNE, JUERGEN; LI, JUNYI
To: QUALCOMM INCORPORATED
Reel/Frame 058051/0896 →
Continuity (3)
Continuation 15365893 · Nov 30, 2016
Provisional Application 62318707 · Apr 5, 2016
Related Publication 20220061035A1 · Feb 24, 2022
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