Wireless communications for uplink preemption and downlink preemption

1. A method comprising:

sending, by a wireless device, a message comprising:

a first capability parameter indicating that downlink preemption is supported; and

a second capability parameter indicating that uplink preemption is supported;

receiving, after sending the message, a control message comprising:

a first radio network temporary identifier (RNTI) for reception of a downlink preemption indication; and

a second RNTI for reception of an uplink preemption indication; and

receiving at least one downlink control channel transmission comprising at least one of:

first downlink control information (DCI), associated with the first RNTI, indicating downlink preemption of at least one downlink resource; or

second DCI, associated with the second RNTI, indicating uplink preemption of at least one uplink resource.

2. The method of claim 1 , further comprising:

based on the second DCI indicating the uplink preemption:

canceling a scheduled transmission of uplink data; and

sending a third message.

3. The method of claim 1 , further comprising:

receiving, by the wireless device from a base station, a capability request comprising a request for capability parameters,

wherein the sending the message is based on the capability request.

4. The method of claim 1 , wherein:

the sending the message comprises sending the message to a base station; and

the receiving the control message comprises receiving the control message from the base station.

5. The method of claim 1 , further comprising determining the first DCI based on:

the first RNTI; and

at least one of:

a downlink radio resource;

a control resource set;

a search space; or

a periodicity.

6. The method of claim 1 , further comprising:

receiving, via a first downlink radio resource of a downlink shared channel, a first portion of a data packet;

receiving, via a second downlink radio resource of the downlink shared channel, a second portion of the data packet;

puncturing, based on the first DCI indicating that the first downlink radio resource is preempted, the first portion of the data packet; and

decoding, based on the second downlink radio resource being not preempted, the second portion of the data packet.

7. A method comprising:

receiving, by a wireless device, a capability request message comprising a request for capability parameters of the wireless device;

sending, based on the capability request message, a capability response message comprising the capability parameters, wherein the capability parameters comprise a capability parameter indicating that uplink preemption is supported;

receiving, after sending the capability response message, a control message comprising a radio network temporary identifier (RNTI) for reception of an uplink preemption indication; and

receiving downlink control information (DCI) associated with the RNTI, wherein the DCI indicates uplink preemption of at least one uplink resource.

8. The method of claim 7 , further comprising:

receiving second DCI associated with a second RNTI, wherein the second DCI indicates downlink preemption of at least one downlink resource,

wherein the control message further comprises the second RNTI for reception of a downlink preemption indication.

9. The method of claim 7 , further comprising:

based on the DCI:

canceling a scheduled transmission of a second message; and

sending a third message.

10. The method of claim 7 , further comprising:

sending, via a first uplink radio resource of an uplink shared channel, a first portion of uplink data; and

based on the DCI indicating a second uplink radio resource is preempted, not sending a second portion of the uplink data.

11. The method of claim 7 , wherein:

the receiving the capability request message comprises receiving the capability request message from a base station;

the sending the capability response message comprises sending the capability response message to the base station; and

the receiving the control message comprises receiving the control message from the base station.

12. The method of claim 7 , wherein the capability parameters comprise a second capability parameter indicating that downlink preemption is supported; and

wherein the control message further comprises a second RNTI for reception of a downlink preemption indication.

13. The method of claim 7 , wherein the capability response message indicates that downlink preemption is not supported.

14. The method of claim 13 , wherein the control message does not comprise a second RNTI for reception of a downlink preemption indication.

15. A method comprising:

receiving, by a base station, a message comprising:

a first capability parameter indicating that downlink preemption is supported; and

a second capability parameter indicating that uplink preemption is supported;

sending, after receiving the message, a control message comprising:

a first radio network temporary identifier (RNTI) for reception of a downlink preemption indication; and

a second RNTI for reception of an uplink preemption indication; and

sending at least one downlink control channel transmission comprising at least one of:

first downlink control information (DCI), associated with the first RNTI, indicating downlink preemption of at least one downlink resource; or

second DCI, associated with the second RNTI, indicating uplink preemption of at least one uplink resource.

16. The method of claim 15 , further comprising:

based on the second DCI indicating the uplink preemption, canceling reception of a scheduled transmission of uplink data.

17. The method of claim 15 , further comprising:

sending a capability request comprising a request for capability parameters,

wherein the receiving the message is based on the capability request.

18. The method of claim 15 , wherein:

the receiving the message comprises receiving the message from at least one first wireless device; and

the sending the control message comprises sending the control message to the at least one first wireless device.

19. The method of claim 18 , further comprising:

receiving, from at least one second wireless device, a second capability message comprising a third capability parameter indicating that uplink preemption is not supported; and

sending, to the at least one second wireless device and after receiving the second capability message, a second control message comprising the first RNTI, wherein the second control message does not comprise the second RNTI.

20. The method of claim 15 , further comprising:

receiving, from at least one wireless device, a second capability message comprising a third capability parameter indicating that uplink preemption is not supported; and

sending, after receiving the second capability message, a second control message, wherein the second control message does not comprise the second RNTI.

21. The method of claim 15 , further comprising:

receiving, from at least one wireless device, a second capability message comprising a third capability parameter indicating that downlink preemption is supported; and

sending, after receiving the second capability message, a second control message comprising the first RNTI, wherein the second control message does not comprise the second RNTI.

22. The method of claim 15 , further comprising:

sending, via a first downlink radio resource of a downlink shared channel, a first portion of a data packet; and

canceling a scheduled transmission, of a second portion of the data packet, via a second downlink radio resource of the downlink shared channel.

23. A method comprising:

sending, by a base station, a capability request message comprising a request for capability parameters of a wireless device;

receiving, based on the capability request message, a capability response message comprising the capability parameters, wherein the capability parameters comprise a capability parameter indicating that uplink preemption is supported;

sending, after the receiving the capability response message, a control message comprising a radio network temporary identifier(RNTI) for reception of an uplink preemption indication; and

sending downlink control information (DCI) associated with the RNTI, wherein the DCI indicates uplink preemption of at least one uplink resource.

24. The method of claim 23 , further comprising:

sending second DCI associated with a second RNTI, wherein the second DCI indicates downlink preemption of at least one downlink resource,

wherein the control message further comprises the second RNTI for reception of a downlink preemption indication.

25. The method of claim 23 , further comprising:

based on the DCI, canceling reception of a scheduled transmission of a second message.

26. The method of claim 23 , further comprising:

receiving, via a first uplink radio resource of an uplink shared channel, a first portion of uplink data; and

based on the DCI indicating a second uplink radio resource is preempted, not receiving a second portion of the uplink data.

27. The method of claim 23 , wherein:

the sending the capability request message comprises sending the capability request message to the wireless device;

the receiving the capability response message comprises receiving the capability response message from the wireless device; and

the sending the control message comprises sending the control message to the wireless device.

28. The method of claim 23 , wherein the capability parameters comprise a second capability parameter indicating that downlink preemption is supported; and

wherein the control message further comprises a second RNTI for reception of a downlink preemption indication.

29. The method of claim 23 , wherein the capability response message indicates that downlink preemption is not supported.

30. The method of claim 29 , wherein the control message does not comprise a second RNTI for reception of a downlink preemption indication.

31. A wireless device comprising:

one or more processors; and

memory storing instructions that, when executed by the one or more processors, cause the wireless device to:

send a message comprising:

a first capability parameter indicating that downlink preemption is supported; and

a second capability parameter indicating that uplink preemption is supported;

receive, after sending the message, a control message comprising:

a first radio network temporary identifier (RNTI) for reception of a downlink preemption indication; and

a second RNTI for reception of an uplink preemption indication; and

receive at least one downlink control channel transmission comprising at least one of:

first downlink control information (DCI), associated with the first RNTI, indicating downlink preemption of at least one downlink resource; or

second DCI, associated with the second RNTI, indicating uplink preemption of at least one uplink resource.

32. The wireless device of claim 31 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:

based on the second DCI indicating the uplink preemption:

cancel a scheduled transmission of uplink data; and

send a third message.

33. The wireless device of claim 31 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:

receive, from a base station, a capability request comprising a request for capability parameters; and

send the message by sending, based on the capability request, the message.

34. The wireless device of claim 31 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:

send the message by sending the message to a base station; and

receive the control message by receiving the control message from the base station.

35. The wireless device of claim 31 , wherein the instructions, when executed by the one or more processors, cause the wireless device to determine the first DCI based on:

the first RNTI; and

at least one of:

a downlink radio resource;

a control resource set;

a search space; or

a periodicity.

36. The wireless device of claim 31 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:

receive, via a first downlink radio resource of a downlink shared channel, a first portion of a data packet;

receive, via a second downlink radio resource of the downlink shared channel, a second portion of the data packet;

puncture, based on the first DCI indicating that the first downlink radio resource is preempted, the first portion of the data packet; and

decode, based on the second downlink radio resource being not preempted, the second portion of the data packet.

37. A wireless device comprising:

one or more processors; and

memory storing instructions that, when executed by the one or more processors, cause the wireless device to:

receive a capability request message comprising a request for capability parameters of the wireless device;

send, based on the capability request message, a capability response message comprising the capability parameters, wherein the capability parameters comprise a capability parameter indicating that uplink preemption is supported;

receive, after sending the capability response message, a control message comprising a radio network temporary identifier (RNTI) for reception of an uplink preemption indication; and

receive downlink control information (DCI) associated with the RNTI, wherein the DCI indicates uplink preemption of at least one uplink resource.

38. The wireless device of claim 37 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:

receive second DCI associated with a second RNTI, wherein the second DCI indicates downlink preemption of at least one downlink resource, and

wherein the control message further comprises the second RNTI for reception of a downlink preemption indication.

39. The wireless device of claim 37 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:

based on the DCI:

cancel a scheduled transmission of a second message; and

send a third message.

40. The wireless device of claim 37 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:

send, via a first uplink radio resource of an uplink shared channel, a first portion of uplink data; and

based on the DCI indicating a second uplink radio resource is preempted, not send a second portion of the uplink data.

41. The wireless device of claim 37 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:

receive the capability request message by receiving the capability request message from a base station;

send the capability response message by sending the capability response message to the base station; and

receive the control message by receiving the control message from the base station.

42. The wireless device of claim 37 , wherein the capability parameters comprise a second capability parameter indicating that downlink preemption is supported; and

wherein the control message further comprises a second RNTI for reception of a downlink preemption indication.

43. The wireless device of claim 37 , wherein the capability response message indicates that downlink preemption is not supported.

44. The wireless device of claim 43 , wherein the control message does not comprise a second RNTI for reception of a downlink preemption indication.

45. A base station comprising:

one or more processors; and

memory storing instructions that, when executed by the one or more processors, cause the base station to:

receive a message comprising:

a first capability parameter indicating that downlink preemption is supported; and

a second capability parameter indicating that uplink preemption is supported;

send, after receiving the message, a control message comprising:

a first radio network temporary identifier (RNTI) for reception of a downlink preemption indication; and

a second RNTI for reception of an uplink preemption indication; and

send at least one downlink control channel transmission comprising at least one of:

first downlink control information (DCI), associated with the first RNTI, indicating downlink preemption of at least one downlink resource; or

second DCI, associated with the second RNTI, indicating uplink preemption of at least one uplink resource.

46. The base station of claim 45 , wherein the instructions, when executed by the one or more processors, cause the base station to:

based on the second DCI indicating the uplink preemption, cancel reception of a scheduled transmission of uplink data.

47. The base station of claim 45 , wherein the instructions, when executed by the one or more processors, cause the base station to:

send a capability request comprising a request for capability parameters, and

receive the message by receiving, based on the capability request, the message.

48. The base station of claim 45 , wherein the instructions, when executed by the one or more processors, cause the base station to:

receive the message by receiving the message from at least one first wireless device; and

send the control message by sending the control message to the at least one first wireless device.

49. The base station of claim 48 , wherein the instructions, when executed by the one or more processors, cause the base station to:

receive, from at least one second wireless device, a second capability message comprising a third capability parameter indicating that uplink preemption is not supported; and

send, to the at least one second wireless device and after receiving the second capability message, a second control message comprising the first RNTI, wherein the second control message does not comprise the second RNTI.

50. The base station of claim 45 , wherein the instructions, when executed by the one or more processors, cause the base station to:

receive, from at least one wireless device, a second capability message comprising a third capability parameter indicating that uplink preemption is not supported; and

send, after receiving the second capability message, a second control message, wherein the second control message does not comprise the second RNTI.

51. The base station of claim 45 , wherein the instructions, when executed by the one or more processors, cause the base station to:

receive, from at least one wireless device, a second capability message comprising a third capability parameter indicating that downlink preemption is supported; and

send, after receiving the second capability message, a second control message comprising the first RNTI, wherein the second control message does not comprise the second RNTI.

52. The base station of claim 45 , wherein the instructions, when executed by the one or more processors, cause the base station to:

send, via a first downlink radio resource of a downlink shared channel, a first portion of a data packet; and

cancel a scheduled transmission, of a second portion of the data packet, via a second downlink radio resource of the downlink shared channel.

53. A base station comprising:

one or more processors; and

memory storing instructions that, when executed by the one or more processors, cause the base station to:

send a capability request message comprising a request for capability parameters of a wireless device;

receive, based on the capability request message, a capability response message comprising the capability parameters, wherein the capability parameters comprise a capability parameter indicating that uplink preemption is supported;

send, after receiving the capability response message, a control message comprising a radio network temporary identifier (RNTI) for reception of an uplink preemption indication; and

send downlink control information (DCI) associated with the RNTI, wherein the DCI indicates uplink preemption of at least one uplink resource.

54. The base station of claim 53 , wherein the instructions, when executed by the one or more processors, cause the base station to:

send second DCI associated with a second RNTI, wherein the second DCI indicates downlink preemption of at least one downlink resource, and

wherein the control message further comprises the second RNTI for reception of a downlink preemption indication.

55. The base station of claim 53 , wherein the instructions, when executed by the one or more processors, cause the base station to:

based on the DCI, cancel reception of a scheduled transmission of a second message.

56. The base station of claim 53 , wherein the instructions, when executed by the one or more processors, cause the base station to:

receive, via a first uplink radio resource of an uplink shared channel, a first portion of uplink data; and

based on the DCI indicating a second uplink radio resource is preempted, not receive a second portion of the uplink data.

57. The base station of claim 53 , wherein the instructions, when executed by the one or more processors, cause the base station to:

send the capability request message by sending the capability request message to the wireless device;

receive the capability response message by receiving the capability response message from the wireless device; and

send the control message by sending the control message to the wireless device.

58. The base station of claim 53 , wherein the capability parameters comprise a second capability parameter indicating that downlink preemption is supported; and

wherein the control message further comprises a second RNTI for reception of a downlink preemption indication.

59. The base station of claim 53 , wherein the capability response message indicates that downlink preemption is not supported.

60. The base station of claim 59 , wherein the control message does not comprise a second RNTI for reception of a downlink preemption indication.