IP Library › Granted Patent US 12,075,389
Granted Patent B2
US 12,075,389 · App. 17/581,612 · Granted Aug 27, 2024

Configured bandwidth part and resource allocation switching

Inventors: Yan Zhou (San Diego, CA); Qian Zhang (Basking Ridge, NJ); Tao Luo (San Diego, CA)
Assignee: QUALCOMM Incorporated
H04W72/044H04L5/16H04L27/2607
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Quick Facts
Patent No.
US 12,075,389
App. No.
17/581,612
Granted
Aug 27, 2024
Kind
B2
Abstract

Methods, systems, and devices for wireless communications are described. A base station may indicate via control signaling a switching pattern for a bandwidth part (BWP) for communication between a user equipment (UE) and the base station. The switching pattern may include a set of slots associated with a full-duplex communications mode and a set of slots associated with a half-duplex communications mode. The UE and the base station may communicate in the half-duplex communications mode using the BWP, and the UE and the base station may communicate in the full-duplex communications mode using at least one of a first sub-BWP of the BWP for uplink signaling and a second sub-BWP of the BWP for downlink signaling. The base station may configure different resource allocations, operating parameters, and physical uplink control channel resources for the same configured transmissions or receptions for the half-duplex communications mode and the full-duplex communications mode.

Claims (71)

1. A method for wireless communications at a user equipment (UE), comprising:

receiving, from a network device, control signaling indicating a periodic switching pattern for a bandwidth part of a carrier bandwidth for communications between the network device and the UE, the periodic switching pattern comprising a first set of slots associated with a half-duplex communications mode and a second set of slots associated with a full-duplex communications mode;

communicating with the network device during the first set of slots using the bandwidth part; and

communicating with the network device during the second set of slots using at least one of a first sub-bandwidth part configured for downlink signaling for the second set of slots and a second sub-bandwidth part configured for uplink signaling for the second set of slots, wherein the first sub-bandwidth part comprises a first set of resources spanning at least a first portion of the bandwidth part in the frequency domain and the second sub-bandwidth part comprises a second set of resources spanning at least a second portion of the bandwidth part in the frequency domain, the first portion different from the second portion, and wherein a guard period is between the first set of slots associated with the half-duplex communications mode and the second set of slots associated with the full-duplex communications mode.

2. The method of claim 1 , further comprising:

receiving, with the control signaling, an indication of a first set of parameters associated with the half-duplex communications mode and a second set of parameters associated with the full-duplex communications mode, wherein the first set of parameters and the second set of parameters comprise a beam identifier, a power control parameter, a transmission power, a rank index, a channel quality indicator, a modulation and coding scheme, or a combination thereof.

3. The method of claim 1 , further comprising:

receiving, with the control signaling, an indication of the first set of resources and the second set of resources.

4. The method of claim 3 , further comprising:

receiving, with the control signaling, a second indication of a guard band in the frequency domain between the first set of resources and the second set of resources.

5. The method of claim 1 , further comprising:

receiving, with the control signaling, an indication of the guard period.

6. The method of claim 1 , further comprising:

receiving, with the control signaling, an indication that at least one slot of the first set of slots associated with the half-duplex communications mode is reserved for control communications with the network device.

7. The method of claim 6 , wherein the control communications comprises a synchronization signal block.

8. The method of claim 1 , further comprising:

receiving, with the control signaling, a first indication of a first set of resource allocations, first physical uplink control channel resources, or first operation parameters for a configured transmission or configured reception occurring in the first set of slots associated with the half-duplex communications mode, and a second indication of a second set of resource allocations, second physical uplink control channel resources, or second operation parameters for the configured transmission or configured reception occurring in the second set of slots associated with the full-duplex communications mode.

9. The method of claim 8 , wherein the configured transmission or configured reception comprises a semi-persistent scheduling configuration occasion, a configured grant, a reference signal, a random access channel occasion, or a search space.

10. The method of claim 8 , wherein the first operation parameters and the second operation parameters comprise a demodulation reference signal format, a modulation and coding scheme, a rank index, a precoding matrix indicator, or a combination thereof.

11. The method of claim 1 , wherein receiving the control signaling comprises:

receiving the control signaling via a downlink control information message, a radio resource control message, or a medium access control control element message.

12. The method of claim 1 , wherein communicating with the network device during the second set of slots comprises:

communicating with the network device in the full-duplex communications mode using the first sub-bandwidth part for receiving downlink signaling and the second sub-bandwidth part for transmitting uplink signaling.

13. A method for wireless communications at a network device, comprising:

transmitting, to a user equipment (UE), control signaling indicating a periodic switching pattern for a bandwidth part of a carrier bandwidth for communications between the network device and the UE, the periodic switching pattern comprising a first set of slots associated with a half-duplex communications mode and a second set of slots associated with a full-duplex communications mode;

communicating with the UE during the first set of slots using the bandwidth part; and

communicating with the UE during the second set of slots using at least one of a first sub-bandwidth part configured for downlink signaling for the second set of slots and a second sub-bandwidth part configured for uplink signaling for the second set of slots, wherein the first sub-bandwidth part comprises a first set of resources spanning at least a first portion of the bandwidth part in the frequency domain and the second sub-bandwidth part comprises a second set of resources spanning at least a second portion of the bandwidth part in the frequency domain, the first portion different from the second portion, and wherein a guard period is between the first set of slots associated with the half-duplex communications mode and the second set of slots associated with the full-duplex communications mode.

14. The method of claim 13 , further comprising:

transmitting, to a second UE, second control signaling indicating a second periodic switching pattern for the bandwidth part for communications between the network device and the second UE, the second periodic switching pattern comprising a third set of slots associated with the half-duplex communications mode and a fourth set of slots associated with the full-duplex communications mode, the third set of slots different from the first set of slots and the fourth set of slots different from the second set of slots;

communicating with the second UE during the third set of slots using the bandwidth part; and

communicating with the second UE during the fourth set of slots using at least one of a third sub-bandwidth part configured for downlink signaling for the fourth set of slots and a fourth sub-bandwidth part configured for uplink signaling for the fourth set of slots, wherein the third sub-bandwidth part comprises a third set of resources spanning at least a third portion of the bandwidth part in the frequency domain and the fourth sub-bandwidth part comprises a fourth set of resources spanning at least a fourth portion of the bandwidth part in the frequency domain, the third portion different from the fourth portion.

15. The method of claim 13 , further comprising:

transmitting, to a second UE, second control signaling indicating a second periodic switching pattern for a second bandwidth part of the carrier bandwidth for communications between the network device and the second UE, the second periodic switching pattern comprising a third set of slots associated with the half-duplex communications mode and a fourth set of slots associated with the full-duplex communications mode, the second bandwidth part different from the bandwidth part;

communicating with the second UE during the third set of slots using the second bandwidth part; and

communicating with the second UE during the fourth set of slots using at least one of a third sub-bandwidth part configured for downlink signaling for the fourth set of slots and a fourth sub-bandwidth part configured for uplink signaling for the fourth set of slots, wherein the third sub-bandwidth part comprises a third set of resources spanning at least a third portion of the second bandwidth part in the frequency domain and the fourth sub-bandwidth part comprises a fourth set of resources spanning at least a fourth portion of the second bandwidth part in the frequency domain, the third portion different from the fourth portion.

16. The method of claim 13 , further comprising:

transmitting, with the control signaling, an indication of a first set of parameters associated with the half-duplex communications mode and a second set of parameters associated with the full-duplex communications mode.

17. The method of claim 16 , wherein the first set of parameters and the second set of parameters comprise a beam identifier, a power control parameter, a transmission power, a rank index, a channel quality indicator, a modulation and coding scheme, or a combination thereof.

18. The method of claim 13 , further comprising:

transmitting, with the control signaling, an indication of the first set of resources and the second set of resources.

19. The method of claim 18 , further comprising:

transmitting, with the control signaling, a second indication of a guard band in the frequency domain between the first set of resources and the second set of resources.

20. The method of claim 13 , further comprising:

transmitting, with the control signaling, an indication of the guard period.

21. The method of claim 13 , further comprising:

transmitting, with the control signaling, an indication that at least one slot of the first set of slots associated with the half-duplex communications mode is reserved for control communications with the network device.

22. The method of claim 21 , wherein the control communications comprises a synchronization signal block.

23. The method of claim 13 , further comprising:

transmitting, with the control signaling, a first indication of a first set of resource allocations, first physical uplink control channel resources, or first operation parameters for a configured transmission or configured reception occurring in the first set of slots associated with the half-duplex communications mode, and a second indication of a second set of resource allocations, second physical uplink control channel resources, or second operation parameters for the configured transmission or configured reception occurring in the second set of slots associated with the full-duplex communications mode.

24. The method of claim 23 , wherein the configured transmission or configured reception comprises a semi-persistent scheduling configuration occasion, a configured grant, a reference signal, a random access channel occasion, or a search space.

25. The method of claim 13 , wherein transmitting the control signaling comprises:

transmitting the control signaling via a downlink control information message, a radio resource control message, or a medium access control control element message.

26. The method of claim 13 , wherein communicating with the UE during the second set of slots comprises:

communicating with the UE in the full-duplex communications mode using the first sub-bandwidth part for transmitting downlink signaling and the second sub-bandwidth part for receiving uplink signaling.

27. An apparatus for wireless communications, comprising:

memory;

a transceiver; and

at least one processor of a user equipment (UE), the at least one processor coupled with the memory and the transceiver, and configured to:

receive, via the transceiver, from a network device, control signaling indicating a periodic switching pattern for a bandwidth part of a carrier bandwidth for communications between the network device and the UE, the periodic switching pattern comprising a first set of slots associated with a half-duplex communications mode and a second set of slots associated with a full-duplex communications mode;

communicate, via the transceiver, with the network device during the first set of slots using the bandwidth part; and

communicate, via the transceiver, with the network device during the second set of slots using at least one of a first sub-bandwidth part configured for downlink signaling for the second set of slots and a second sub-bandwidth part configured for uplink signaling for the second set of slots, wherein the first sub-bandwidth part comprises a first set of resources spanning at least a first portion of the bandwidth part in the frequency domain and the second sub-bandwidth part comprises a second set of resources spanning at least a second portion of the bandwidth part in the frequency domain, the first portion different from the second portion, and wherein a guard period is between the first set of slots associated with the half-duplex communications mode and the second set of slots associated with the full-duplex communications mode.

28. The apparatus of claim 27 , the at least one processor further configured to cause the apparatus to:

receive, with the control signaling, an indication of a first set of parameters associated with the half-duplex communications mode and a second set of parameters associated with the full-duplex communications mode, wherein the first set of parameters and the second set of parameters comprise a beam identifier, a power control parameter, a transmission power, a rank index, a channel quality indicator, a modulation and coding scheme, or a combination thereof.

29. The apparatus of claim 27 , the at least one processor further configured to cause the apparatus to:

receive, with the control signaling, a second indication of a guard band in the frequency domain between the first set of resources and the second set of resources.

30. An apparatus for wireless communications, comprising:

memory; and

at least one processor of a network device, the at least one processor coupled with the memory, and configured to:

transmit, to a user equipment (UE), control signaling indicating a periodic switching pattern for a bandwidth part of a carrier bandwidth for communications between the network device and the UE, the periodic switching pattern comprising a first set of slots associated with a half-duplex communications mode and a second set of slots associated with a full-duplex communications mode;

communicate, with the UE during the first set of slots using the bandwidth part; and

communicate, with the UE during the second set of slots using at least one of a first sub-bandwidth part configured for downlink signaling for the second set of slots and a second sub-bandwidth part configured for uplink signaling for the second set of slots, wherein the first sub-bandwidth part comprises a first set of resources spanning at least a first portion of the bandwidth part in the frequency domain and the second sub-bandwidth part comprises a second set of resources spanning at least a second portion of the bandwidth part in the frequency domain, the first portion different from the second portion, and wherein a guard period is between the first set of slots associated with the half-duplex communications mode and the second set of slots associated with the full-duplex communications mode.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 31, 2022
From: ZHOU, YAN; ZHANG, QIAN; LUO, TAO
To: QUALCOMM INCORPORATED
Reel/Frame 058832/0982 →
Continuity (1)
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